From 3274c0c448ad64f28f68392934fbc92b7d4ae6e1 Mon Sep 17 00:00:00 2001
From: "Stephen R. Aylward" <stephen.aylward@kitware.com>
Date: Wed, 3 Jul 2024 09:05:02 -0400
Subject: [PATCH] ENH: Major update to handle image/mask orientation and more
 (#37)

---
 .gitignore                                    |   5 +
 README_Dev.md                                 |   7 +
 data/.gitignore                               |   4 +
 pyproject.toml                                |   1 +
 src/minder3d/lib/sovImageTablePanelWidget.py  |  12 +
 src/minder3d/lib/sovInfoTablePanelWidget.py   |  74 +++++-
 src/minder3d/lib/sovObjectPanelWidget.py      |  11 +-
 src/minder3d/lib/sovOtsuLogic.py              |   3 +-
 src/minder3d/lib/sovUtils.py                  |  52 ++++
 src/minder3d/lib/sovView2DPanelWidget.py      |  16 +-
 src/minder3d/lib/sovView2DPanelWidget.ui      |   8 +-
 .../lib/sovView2DRenderWindowInteractor.py    |   3 -
 src/minder3d/lib/sovView3DPanelWidget.ui      | 225 +++++++++++-------
 .../lib/sovView3DRenderWindowInteractor.py    |   2 +
 src/minder3d/lib/sovView3DUtils.py            |   2 +-
 .../lib/sovVisualizationPanelWidget.ui        |  56 ++++-
 src/minder3d/lib/sovWelcomePanelWidget.py     |   6 -
 src/minder3d/lib/sovWelcomePanelWidget.ui     |  62 ++---
 src/minder3d/lib/ui_sovView2DPanelWidget.py   |   5 +-
 src/minder3d/lib/ui_sovView3DPanelWidget.py   | 134 ++++++-----
 .../lib/ui_sovVisualizationPanelWidget.py     |  30 ++-
 src/minder3d/lib/ui_sovWelcomePanelWidget.py  |  44 +---
 src/minder3d/minder3DWindow.py                |  22 +-
 src/minder3d/minder3DWindow.ui                |  10 +-
 src/minder3d/ui_minder3DWindow.py             |  12 +-
 25 files changed, 531 insertions(+), 275 deletions(-)

diff --git a/.gitignore b/.gitignore
index ddde42e..d5244cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,8 @@ __pycache__
 *.swp
 *~
 *.zip
+itk-wheels
+*.tre
+*.mha
+*.nii
+*.code-workspace
diff --git a/README_Dev.md b/README_Dev.md
index e270844..4d475bb 100644
--- a/README_Dev.md
+++ b/README_Dev.md
@@ -1,12 +1,19 @@
+Install the developer build of ITK, ITKMinimalPathExtraction ITKTubetk:
+
+    python -m pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/ itk itk-minimalpathextraction itk-tubetk
+
 Setup for editable installation. Changes to code in src are
 immediatelly reflected in the installed version.  Also installs
 all dependencies needed for development and testing:
+
     pip install -e .[dev]
 
 Prior to making a commit, please verify your code is compliant:
+
     pre-commit run --all-files
 
 HINT:
 QT Designer was used to define the layout.  On Windows, to launch
 designer, use this command:
+
     qt6-tools.exe designer pytubeview.ui
diff --git a/data/.gitignore b/data/.gitignore
index 33266fd..2054306 100644
--- a/data/.gitignore
+++ b/data/.gitignore
@@ -6,3 +6,7 @@
 *.nii.gz
 *.mhd
 *.raw
+test*
+CH*
+PCD*
+UNC*
diff --git a/pyproject.toml b/pyproject.toml
index b2ce745..6b67377 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ dependencies = [
   'vtk',
   'thedicomsort',
   #'itk',  # Do not install until ITK pypi is updated
+  #'itk-tubetk',  # Do not install until ITK pypi is updated
 ]
 
 [project.scripts]
diff --git a/src/minder3d/lib/sovImageTablePanelWidget.py b/src/minder3d/lib/sovImageTablePanelWidget.py
index a5fe323..36fc24d 100644
--- a/src/minder3d/lib/sovImageTablePanelWidget.py
+++ b/src/minder3d/lib/sovImageTablePanelWidget.py
@@ -88,10 +88,22 @@ def remove_all(self):
         self.settings.clear_data()
         self.fill_table()
 
+    def close_expanded_table(self):
+        self.enlarged_table.close()
+        self.enlarged_table = None
+
     def expand_table(self):
         if self.enlarged_table is None:
             self.enlarged_table = ImageTablePanelWidget(self.gui, self.state)
             self.enlarged_table.setWindowTitle('Image Table')
+            self.enlarged_table.imageTableExpandButton.setText('CLOSE')
+            self.enlarged_table.imageTableExpandButton.setMinimumWidth(75)
+            self.enlarged_table.imageTableExpandButton.clicked.disconnect()
+            self.enlarged_table.imageTableExpandButton.clicked.connect(
+                self.close_expanded_table
+            )
+            self.enlarged_table.show()
+        else:
             self.enlarged_table.show()
 
     @time_and_log
diff --git a/src/minder3d/lib/sovInfoTablePanelWidget.py b/src/minder3d/lib/sovInfoTablePanelWidget.py
index d4abd01..be35c6d 100644
--- a/src/minder3d/lib/sovInfoTablePanelWidget.py
+++ b/src/minder3d/lib/sovInfoTablePanelWidget.py
@@ -1,3 +1,4 @@
+import numpy as np
 from PySide6.QtWidgets import QTableWidget, QTableWidgetItem, QWidget
 
 from .sovUtils import time_and_log
@@ -20,12 +21,10 @@ def __init__(self, gui, state, parent=None):
         self.gui = gui
         self.state = state
 
-        self.infoTableWidget.setRowCount(3)
+        self.pixel_info_row_start = 0
+
+        self.infoTableWidget.setSizeAdjustPolicy(QTableWidget.AdjustToContents)
         self.infoTableWidget.setColumnCount(2)
-        self.infoTableWidget.setItem(0, 0, QTableWidgetItem('Pixel Coordinate'))
-        self.infoTableWidget.setItem(1, 0, QTableWidgetItem('  Image Value'))
-        self.infoTableWidget.setItem(2, 0, QTableWidgetItem('  Overlay Value'))
-        self.infoTableWidget.setColumnWidth(1, 200)
         self.infoTableWidget.setEditTriggers(QTableWidget.NoEditTriggers)
         self.infoTableWidget.setSelectionMode(QTableWidget.NoSelection)
         self.infoTableWidget.setShowGrid(True)
@@ -37,7 +36,44 @@ def __init__(self, gui, state, parent=None):
 
     @time_and_log
     def update_image(self):
-        pass
+        self.infoTableWidget.clear()
+        self.infoTableWidget.setRowCount(8)
+        self.infoTableWidget.setItem(
+            0, 0, QTableWidgetItem('Image Information')
+        )
+        img = self.state.image[self.state.current_image_num]
+
+        self.infoTableWidget.setItem(1, 0, QTableWidgetItem('  Image Size'))
+        info_str = ', '.join(
+            [f'{x:0.1f}' for x in img.GetLargestPossibleRegion().GetSize()]
+        )
+        self.infoTableWidget.setItem(1, 1, QTableWidgetItem(info_str))
+
+        self.infoTableWidget.setItem(2, 0, QTableWidgetItem('  Image Origin'))
+        info_str = ', '.join([f'{x:0.1f}' for x in img.GetOrigin()])
+        self.infoTableWidget.setItem(2, 1, QTableWidgetItem(info_str))
+
+        self.infoTableWidget.setItem(3, 0, QTableWidgetItem('  Image Spacing'))
+        if img.GetSpacing()[0] > 1:
+            info_str = ', '.join([f'{x:0.1f}' for x in img.GetSpacing()])
+        else:
+            info_str = ', '.join([f'{x:0.4f}' for x in img.GetSpacing()])
+        self.infoTableWidget.setItem(3, 1, QTableWidgetItem(info_str))
+
+        self.infoTableWidget.setItem(
+            4, 0, QTableWidgetItem('  Image Direction')
+        )
+        info_str = ', '.join(
+            [f'{x:0.1f}' for x in np.array(img.GetDirection()).flatten()]
+        )
+        self.infoTableWidget.setItem(4, 1, QTableWidgetItem(info_str))
+
+        self.pixel_info_row_start = 5
+        self.infoTableWidget.setItem(5, 0, QTableWidgetItem('Pixel Coordinate'))
+        self.infoTableWidget.setItem(6, 0, QTableWidgetItem('  Image Value'))
+        self.infoTableWidget.setItem(7, 0, QTableWidgetItem('  Overlay Value'))
+
+        self.infoTableWidget.resizeColumnsToContents()
 
     @time_and_log
     def update_pixel(self):
@@ -54,7 +90,9 @@ def update_pixel(self):
         pos_str = ', '.join(
             [f'{x:0.1f}' for x in self.state.current_pixel_position]
         )
-        self.infoTableWidget.setItem(0, 1, QTableWidgetItem(pos_str))
+        self.infoTableWidget.setItem(
+            self.pixel_info_row_start, 1, QTableWidgetItem(pos_str)
+        )
         if (
             self.state.image[self.state.current_image_num]
             .GetLargestPossibleRegion()
@@ -68,13 +106,25 @@ def update_pixel(self):
                 - self.state.image_min[self.state.current_image_num]
             ) < 1:
                 self.infoTableWidget.setItem(
-                    1, 1, QTableWidgetItem(f'{img_val:0.4f}')
+                    self.pixel_info_row_start + 1,
+                    1,
+                    QTableWidgetItem(f'{img_val:0.4f}'),
                 )
             else:
                 self.infoTableWidget.setItem(
-                    1, 1, QTableWidgetItem(f'{img_val:0.1f}')
+                    self.pixel_info_row_start + 1,
+                    1,
+                    QTableWidgetItem(f'{img_val:0.1f}'),
                 )
-            self.infoTableWidget.setItem(2, 1, QTableWidgetItem('0'))
+            self.infoTableWidget.setItem(
+                self.pixel_info_row_start + 2, 1, QTableWidgetItem('0')
+            )
         else:
-            self.infoTableWidget.setItem(1, 1, QTableWidgetItem('Outside'))
-            self.infoTableWidget.setItem(2, 1, QTableWidgetItem('Outside'))
+            self.infoTableWidget.setItem(
+                self.pixel_info_row_start + 1, 1, QTableWidgetItem('Outside')
+            )
+            self.infoTableWidget.setItem(
+                self.pixel_info_row_start + 2, 1, QTableWidgetItem('Outside')
+            )
+
+        self.infoTableWidget.resizeColumnsToContents()
diff --git a/src/minder3d/lib/sovObjectPanelWidget.py b/src/minder3d/lib/sovObjectPanelWidget.py
index 95f7174..04ad2fa 100644
--- a/src/minder3d/lib/sovObjectPanelWidget.py
+++ b/src/minder3d/lib/sovObjectPanelWidget.py
@@ -86,6 +86,8 @@ def update_highlight_selected(self, value):
         """
         self.state.highlight_selected = value
         for selected_id in self.state.selected_ids:
+            if selected_id == -1:
+                continue
             self.gui.log(f'update_highlight_selected: Id={selected_id}')
             so = self.state.scene_list[
                 self.state.scene_list_ids.index(selected_id)
@@ -245,9 +247,12 @@ def rename_selected_object(self):
     def delete_selected_objects(self):
         """Delete the selected objects from the scene.
 
-        This function deletes the selected objects from the scene by removing them from the scene list and updating the GUI accordingly.
+        This function deletes the selected objects from the scene by removing
+        them from the scene list and updating the GUI accordingly.
         """
         for so_id in self.state.selected_ids:
+            if so_id == -1:
+                continue
             scene_idx = self.state.scene_list_ids.index(so_id)
             so = self.state.scene_list[scene_idx]
             so_parent = so.GetParent()
@@ -266,7 +271,7 @@ def delete_selected_objects(self):
 
         self.update_gui = True
 
-        self.update_scene()
+        self.gui.update_scene()
 
     @time_and_log
     def propogate_properties_to_all(self):
@@ -285,7 +290,7 @@ def propogate_properties_to_all(self):
         for idx in range(len(self.state.scene_list)):
             self.state.scene_list_properties[idx]['ColorBy'] = color_by
             self.state.scene_list[idx].GetProperty().SetColor(color)
-            self.redraw_object(self.state.scene_list[idx])
+            self.gui.redraw_object(self.state.scene_list[idx])
 
     @time_and_log
     def propogate_properties_to_similar(self):
diff --git a/src/minder3d/lib/sovOtsuLogic.py b/src/minder3d/lib/sovOtsuLogic.py
index 498444f..08632d1 100644
--- a/src/minder3d/lib/sovOtsuLogic.py
+++ b/src/minder3d/lib/sovOtsuLogic.py
@@ -12,4 +12,5 @@ def run(self, inputImage, numberOfThresholds):
             filter = itk.OtsuMultipleThresholdsImageFilter.New(Input=inputImage)
             filter.SetNumberOfThresholds(numberOfThresholds)
             filter.Update()
-            return filter.GetOutput().astype(np.uint8)
+            img = filter.GetOutput().astype(np.uint8)
+            return img
diff --git a/src/minder3d/lib/sovUtils.py b/src/minder3d/lib/sovUtils.py
index 99febcf..07bfe05 100644
--- a/src/minder3d/lib/sovUtils.py
+++ b/src/minder3d/lib/sovUtils.py
@@ -222,6 +222,56 @@ def add_objects_in_mask_image_to_scene(mask_image, scene):
         scene.AddChild(mask_so)
 
 
+@time_and_log
+def compress_scene_for_saving(scene):
+    """Compresses a scene for saving.
+
+    It compresses the input scene by removing unnecessary objects and compressing the scene.
+
+    Args:
+        scene: The scene to be compressed.
+    Returns:
+        new_scene: A compressed copy of the scene.
+    """
+    # HERE HERE HERE
+    mask_objects = get_children_as_list(scene, 'ImageMask')
+    print('Num mask objects = ', len(mask_objects))
+    mask_image_pointers = list(
+        np.unique([id(mask.GetImage()) for mask in mask_objects])
+    )
+    print('Num mask object pointers = ', len(mask_image_pointers))
+    print('Mask image pointers = ', mask_image_pointers)
+    for mask_object in mask_objects:
+        imgPntr = id(mask_object.GetImage())
+        print('Mask object image pointer = ', imgPntr)
+        if imgPntr not in mask_image_pointers:
+            print('Removing mask object with image pointer = ', imgPntr)
+            # mask_object.GetParent().RemoveChild(mask_object)
+        else:
+            print('Keeping mask object with image pointer = ', imgPntr)
+            # mask_image_pointers.remove(id)
+    return scene
+
+
+def uncompress_scene_after_loading(scene):
+    """Uncompresses a scene after loading.
+
+    It uncompresses the input scene by adding necessary objects and uncompressing the scene.
+
+    Args:
+        scene: The scene to be uncompressed.
+    Returns:
+        scene: The uncompressed scene.
+    """
+    mask_objects = get_children_as_list(scene, 'ImageMask')
+    print('Num mask objects = ', len(mask_objects))
+    for mask_object in mask_objects:
+        parent = mask_object.GetParent()
+        parent.RemoveChild(mask_object)
+        add_objects_in_mask_image_to_scene(mask_object.GetImage(), parent)
+    return scene
+
+
 @time_and_log
 def get_children_as_list(
     grp: itk.GroupSpatialObject, child_type: str = ''
@@ -290,6 +340,7 @@ def read_group(filename: str, dims: int = 3) -> itk.GroupSpatialObject:
     try:
         groupFileReader = itk.SpatialObjectReader[dims].New()
         groupFileReader.SetFileName(filename)
+        groupFileReader.SetMetaIOVersion(1)
         groupFileReader.Update()
     except RuntimeError:
         return None
@@ -314,4 +365,5 @@ def write_group(group: itk.GroupSpatialObject, filename: str):
     groupFileWriter = GroupFileWriterType.New()
     groupFileWriter.SetFileName(filename)
     groupFileWriter.SetInput(group)
+    groupFileWriter.SetMetaIOVersion(1)
     groupFileWriter.Update()
diff --git a/src/minder3d/lib/sovView2DPanelWidget.py b/src/minder3d/lib/sovView2DPanelWidget.py
index abe4ef3..c3727e3 100644
--- a/src/minder3d/lib/sovView2DPanelWidget.py
+++ b/src/minder3d/lib/sovView2DPanelWidget.py
@@ -299,13 +299,18 @@ def create_new_image(self):
             self.update_view_plane_coronal(redraw=False)
         elif view_plane == 1:
             self.update_view_plane_sagittal(redraw=False)
-        elif view_plane == 2:
+        else:  # if view_plane == 2:
             self.update_view_plane_axial(redraw=False)
 
         # Sagittal axis is viewed in the negative direction
-        flip[self.state.view2D_csa_axis_order[-1][1]] = not flip[
-            self.state.view2D_csa_axis_order[-1][1]
-        ]
+        # flip[self.state.view2D_csa_axis_order[-1][1]] = not flip[
+        # self.state.view2D_csa_axis_order[-1][1]
+        # ]
+        # If coronal axis is data axis 2, then it is viewed in the negative direction
+        if self.state.view2D_csa_axis_order[-1][0] == 2:
+            flip[self.state.view2D_csa_axis_order[-1][0]] = not flip[
+                self.state.view2D_csa_axis_order[-1][0]
+            ]
         self.state.view2D_flip.append(flip)
 
     @time_and_log
@@ -457,6 +462,9 @@ def update_reset(self):
 
     @time_and_log
     def redraw_object(self, so):
+        if self.state.current_image_num < 0:
+            return
+
         if (
             self.state.highlight_selected
             and so.GetId() in self.state.selected_ids
diff --git a/src/minder3d/lib/sovView2DPanelWidget.ui b/src/minder3d/lib/sovView2DPanelWidget.ui
index 3faf00b..7958708 100644
--- a/src/minder3d/lib/sovView2DPanelWidget.ui
+++ b/src/minder3d/lib/sovView2DPanelWidget.ui
@@ -455,10 +455,16 @@
          </property>
          <property name="minimumSize">
           <size>
-           <width>35</width>
+           <width>30</width>
            <height>0</height>
           </size>
          </property>
+         <property name="maximumSize">
+          <size>
+           <width>30</width>
+           <height>16777215</height>
+          </size>
+         </property>
          <property name="font">
           <font>
            <pointsize>7</pointsize>
diff --git a/src/minder3d/lib/sovView2DRenderWindowInteractor.py b/src/minder3d/lib/sovView2DRenderWindowInteractor.py
index 5f60a2a..629fd60 100644
--- a/src/minder3d/lib/sovView2DRenderWindowInteractor.py
+++ b/src/minder3d/lib/sovView2DRenderWindowInteractor.py
@@ -35,9 +35,6 @@ def __init__(self, gui, state, parent=None):
             7: 'Crop',
         }
 
-        self.state.view2D_image_axis_order = [0, 1, 2]
-        self.state.view2D_csa_axis_order = [2, 0, 1]
-
         self.current_mouse_mode = 0
 
         self.mouse_pressed = False
diff --git a/src/minder3d/lib/sovView3DPanelWidget.ui b/src/minder3d/lib/sovView3DPanelWidget.ui
index b3df03f..b6c4bdd 100644
--- a/src/minder3d/lib/sovView3DPanelWidget.ui
+++ b/src/minder3d/lib/sovView3DPanelWidget.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>410</width>
-    <height>467</height>
+    <height>522</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -35,54 +35,152 @@
       <layout class="QVBoxLayout" name="view3DLayout"/>
      </item>
      <item>
-      <layout class="QHBoxLayout" name="horizontalLayout_2">
-       <item>
-        <widget class="QComboBox" name="view3DBkgComboBox">
+      <layout class="QGridLayout" name="gridLayout">
+       <item row="1" column="4">
+        <widget class="QSlider" name="view3DColorShiftSlider">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="minimumSize">
+          <size>
+           <width>100</width>
+           <height>12</height>
+          </size>
+         </property>
          <property name="font">
           <font>
            <pointsize>7</pointsize>
           </font>
          </property>
-         <item>
-          <property name="text">
-           <string>Black</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>Grey</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>White</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>Blue-Grey</string>
-          </property>
-         </item>
+         <property name="maximum">
+          <number>100</number>
+         </property>
+         <property name="value">
+          <number>99</number>
+         </property>
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
         </widget>
        </item>
-       <item>
-        <spacer name="horizontalSpacer">
+       <item row="1" column="3">
+        <spacer name="horizontalSpacer_3">
          <property name="orientation">
           <enum>Qt::Horizontal</enum>
          </property>
-         <property name="sizeType">
-          <enum>QSizePolicy::Fixed</enum>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item row="0" column="0">
+        <widget class="QLabel" name="label">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>Image View</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="2">
+        <widget class="QSlider" name="view3DOpacitySlicer">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="minimumSize">
+          <size>
+           <width>100</width>
+           <height>12</height>
+          </size>
+         </property>
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="5">
+        <spacer name="horizontalSpacer_2">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
          </property>
          <property name="sizeHint" stdset="0">
           <size>
-           <width>50</width>
+           <width>80</width>
            <height>20</height>
           </size>
          </property>
         </spacer>
        </item>
-       <item>
+       <item row="1" column="6">
+        <widget class="QPushButton" name="view3DResetButton">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="minimumSize">
+          <size>
+           <width>30</width>
+           <height>0</height>
+          </size>
+         </property>
+         <property name="maximumSize">
+          <size>
+           <width>30</width>
+           <height>16777215</height>
+          </size>
+         </property>
+         <property name="font">
+          <font>
+           <pointsize>7</pointsize>
+          </font>
+         </property>
+         <property name="text">
+          <string>Reset</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="4">
+        <widget class="QLabel" name="label_3">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>Color Shift</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0">
         <widget class="QComboBox" name="view3DViewComboBox">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="minimumSize">
+          <size>
+           <width>75</width>
+           <height>0</height>
+          </size>
+         </property>
          <property name="font">
           <font>
            <pointsize>7</pointsize>
@@ -115,81 +213,42 @@
          </item>
          <item>
           <property name="text">
-           <string>Volume</string>
+           <string>Volume: CTA</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string/>
           </property>
          </item>
         </widget>
        </item>
-       <item>
-        <widget class="QSlider" name="view3DOpacitySlider">
+       <item row="0" column="2">
+        <widget class="QLabel" name="label_2">
          <property name="sizePolicy">
-          <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
            <horstretch>0</horstretch>
            <verstretch>0</verstretch>
           </sizepolicy>
          </property>
-         <property name="minimumSize">
-          <size>
-           <width>0</width>
-           <height>12</height>
-          </size>
-         </property>
-         <property name="font">
-          <font>
-           <pointsize>7</pointsize>
-          </font>
-         </property>
-         <property name="maximum">
-          <number>100</number>
-         </property>
-         <property name="value">
-          <number>99</number>
-         </property>
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
+         <property name="text">
+          <string>Opacity</string>
          </property>
         </widget>
        </item>
-       <item>
-        <spacer name="horizontalSpacer_2">
+       <item row="1" column="1">
+        <spacer name="horizontalSpacer">
          <property name="orientation">
           <enum>Qt::Horizontal</enum>
          </property>
-         <property name="sizeType">
-          <enum>QSizePolicy::Fixed</enum>
-         </property>
          <property name="sizeHint" stdset="0">
           <size>
-           <width>50</width>
+           <width>40</width>
            <height>20</height>
           </size>
          </property>
         </spacer>
        </item>
-       <item>
-        <widget class="QPushButton" name="view3DResetButton">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <property name="minimumSize">
-          <size>
-           <width>35</width>
-           <height>0</height>
-          </size>
-         </property>
-         <property name="font">
-          <font>
-           <pointsize>7</pointsize>
-          </font>
-         </property>
-         <property name="text">
-          <string>Reset</string>
-         </property>
-        </widget>
-       </item>
       </layout>
      </item>
     </layout>
diff --git a/src/minder3d/lib/sovView3DRenderWindowInteractor.py b/src/minder3d/lib/sovView3DRenderWindowInteractor.py
index e6ec553..ec22e28 100644
--- a/src/minder3d/lib/sovView3DRenderWindowInteractor.py
+++ b/src/minder3d/lib/sovView3DRenderWindowInteractor.py
@@ -79,6 +79,7 @@ def update_scene(self):
 
         point_data = convert_scene_to_surfaces(self.state.scene)
         self.scene_renderer.RemoveAllViewProps()
+        self.scene_renderer.Render()
         for scene_idx, so in enumerate(self.state.scene_list):
             actor = vtkActor()
             color_by = self.state.scene_list_properties[scene_idx]['ColorBy']
@@ -98,6 +99,7 @@ def update_scene(self):
                 mapper.ScalarVisibilityOn()
             actor.SetMapper(mapper)
             self.scene_renderer.AddActor(actor)
+            self.scene_renderer.Render()
         self.reset_camera()
 
     @time_and_log
diff --git a/src/minder3d/lib/sovView3DUtils.py b/src/minder3d/lib/sovView3DUtils.py
index 0ee58a5..fce1539 100644
--- a/src/minder3d/lib/sovView3DUtils.py
+++ b/src/minder3d/lib/sovView3DUtils.py
@@ -166,7 +166,7 @@ def convert_masks_to_surfaces(mask_list):
     num_masks = len(mask_list)
     mask_surfaces = []
     if num_masks > 0:
-        for mask_num, mask in enumerate(mask_list):
+        for mask in mask_list:
             vtkmask = itk.vtk_image_from_image(mask.GetImage())
             SN = vtkSurfaceNets3D()
             SN.SetInputData(vtkmask)
diff --git a/src/minder3d/lib/sovVisualizationPanelWidget.ui b/src/minder3d/lib/sovVisualizationPanelWidget.ui
index 90387d9..2a8fa19 100644
--- a/src/minder3d/lib/sovVisualizationPanelWidget.ui
+++ b/src/minder3d/lib/sovVisualizationPanelWidget.ui
@@ -214,8 +214,8 @@
     <rect>
      <x>240</x>
      <y>0</y>
-     <width>151</width>
-     <height>71</height>
+     <width>241</width>
+     <height>101</height>
     </rect>
    </property>
    <property name="frameShape">
@@ -227,7 +227,7 @@
    <widget class="QCheckBox" name="vizAutoUpdate3DSceneCheckBox">
     <property name="geometry">
      <rect>
-      <x>40</x>
+      <x>140</x>
       <y>40</y>
       <width>91</width>
       <height>20</height>
@@ -243,7 +243,7 @@
    <widget class="QPushButton" name="vizUpdate3DSceneButton">
     <property name="geometry">
      <rect>
-      <x>10</x>
+      <x>110</x>
       <y>10</y>
       <width>121</width>
       <height>24</height>
@@ -253,6 +253,54 @@
      <string>Update 3D Scene</string>
     </property>
    </widget>
+   <widget class="QComboBox" name="vizView3DBackgroundComboBox">
+    <property name="geometry">
+     <rect>
+      <x>110</x>
+      <y>66</y>
+      <width>121</width>
+      <height>24</height>
+     </rect>
+    </property>
+    <property name="font">
+     <font>
+      <pointsize>9</pointsize>
+     </font>
+    </property>
+    <item>
+     <property name="text">
+      <string>Black</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>Grey</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>White</string>
+     </property>
+    </item>
+    <item>
+     <property name="text">
+      <string>Blue-Grey</string>
+     </property>
+    </item>
+   </widget>
+   <widget class="QLabel" name="vizIntensityMinLabel_2">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>70</y>
+      <width>81</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Background:</string>
+    </property>
+   </widget>
   </widget>
  </widget>
  <resources/>
diff --git a/src/minder3d/lib/sovWelcomePanelWidget.py b/src/minder3d/lib/sovWelcomePanelWidget.py
index b21b471..bd2c348 100644
--- a/src/minder3d/lib/sovWelcomePanelWidget.py
+++ b/src/minder3d/lib/sovWelcomePanelWidget.py
@@ -1,4 +1,3 @@
-from PySide6.QtGui import QColor, QPalette
 from PySide6.QtWidgets import QWidget
 
 from .sovImportDICOMPanelWidget import ImportDICOMPanelWidget
@@ -36,11 +35,6 @@ def __init__(self, gui, state, parent=None):
         )
         self.welcomeSaveSceneButton.pressed.connect(self.gui.save_scene)
 
-        p = self.welcomeTextEdit.palette()
-        p.setColor(QPalette.Base, QColor(43, 43, 43))
-        p.setColor(QPalette.Text, QColor(200, 200, 200))
-        self.welcomeTextEdit.setPalette(p)
-
     @time_and_log
     def add_import_DICOM_panel(self):
         """Add the Import DICOM panel to the GUI tab widget if necessary.
diff --git a/src/minder3d/lib/sovWelcomePanelWidget.ui b/src/minder3d/lib/sovWelcomePanelWidget.ui
index 8ab8715..438ce06 100644
--- a/src/minder3d/lib/sovWelcomePanelWidget.ui
+++ b/src/minder3d/lib/sovWelcomePanelWidget.ui
@@ -13,43 +13,11 @@
   <property name="windowTitle">
    <string>Form</string>
   </property>
-  <widget class="QTextEdit" name="welcomeTextEdit">
+  <widget class="QPushButton" name="welcomeLoadImageButton">
    <property name="geometry">
     <rect>
      <x>20</x>
      <y>10</y>
-     <width>301</width>
-     <height>131</height>
-    </rect>
-   </property>
-   <property name="readOnly">
-    <bool>true</bool>
-   </property>
-   <property name="html">
-    <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
-&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;meta charset=&quot;utf-8&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
-p, li { white-space: pre-wrap; }
-hr { height: 1px; border-width: 0; }
-li.unchecked::marker { content: &quot;\2610&quot;; }
-li.checked::marker { content: &quot;\2612&quot;; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Segoe UI'; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-weight:700;&quot;&gt;Welcome to Minder3D!&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;To get started, load data using the buttons to the right, the list of registered data on the left, or the &amp;quot;File&amp;quot; menu at the top.&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;You can also import DICOM data, which will open a new tab to gather the necessary information.&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;To process your data, select a method from the &amp;quot;New Task&amp;quot; tab.&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;If you have questions or suggestions, please visit&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;   &lt;a href=&quot;https://github.com/aylward/Minder3D&quot;&gt;&lt;span style=&quot; text-decoration: underline; color:#0000ff;&quot;&gt;https://github.com/aylward/Minder3D&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-   </property>
-  </widget>
-  <widget class="QPushButton" name="welcomeLoadImageButton">
-   <property name="geometry">
-    <rect>
-     <x>360</x>
-     <y>20</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -61,8 +29,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeImportDICOMButton">
    <property name="geometry">
     <rect>
-     <x>360</x>
-     <y>110</y>
+     <x>20</x>
+     <y>70</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -74,8 +42,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeSaveImageButton">
    <property name="geometry">
     <rect>
-     <x>520</x>
-     <y>20</y>
+     <x>300</x>
+     <y>10</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -87,8 +55,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeSaveSceneButton">
    <property name="geometry">
     <rect>
-     <x>520</x>
-     <y>80</y>
+     <x>160</x>
+     <y>10</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -100,8 +68,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeLoadSceneButton">
    <property name="geometry">
     <rect>
-     <x>360</x>
-     <y>80</y>
+     <x>160</x>
+     <y>40</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -113,8 +81,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeSaveOverlayButton">
    <property name="geometry">
     <rect>
-     <x>520</x>
-     <y>50</y>
+     <x>440</x>
+     <y>40</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -126,8 +94,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeSaveVTKModelsButton">
    <property name="geometry">
     <rect>
-     <x>520</x>
-     <y>110</y>
+     <x>300</x>
+     <y>40</y>
      <width>121</width>
      <height>24</height>
     </rect>
@@ -139,8 +107,8 @@ li.checked::marker { content: &quot;\2612&quot;; }
   <widget class="QPushButton" name="welcomeLoadOverlayButton">
    <property name="geometry">
     <rect>
-     <x>360</x>
-     <y>50</y>
+     <x>440</x>
+     <y>10</y>
      <width>121</width>
      <height>24</height>
     </rect>
diff --git a/src/minder3d/lib/ui_sovView2DPanelWidget.py b/src/minder3d/lib/ui_sovView2DPanelWidget.py
index 2ef15ec..a33fd8f 100644
--- a/src/minder3d/lib/ui_sovView2DPanelWidget.py
+++ b/src/minder3d/lib/ui_sovView2DPanelWidget.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ################################################################################
-## Form generated from reading UI file 'sovView2DPanelWidgetYgHBrs.ui'
+## Form generated from reading UI file 'sovView2DPanelWidgetbqcKAo.ui'
 ##
 ## Created by: Qt User Interface Compiler version 6.5.0
 ##
@@ -216,7 +216,8 @@ def setupUi(self, View2DPanelWidget):
         self.view2DResetButton.setObjectName(u"view2DResetButton")
         sizePolicy1.setHeightForWidth(self.view2DResetButton.sizePolicy().hasHeightForWidth())
         self.view2DResetButton.setSizePolicy(sizePolicy1)
-        self.view2DResetButton.setMinimumSize(QSize(35, 0))
+        self.view2DResetButton.setMinimumSize(QSize(30, 0))
+        self.view2DResetButton.setMaximumSize(QSize(30, 16777215))
         self.view2DResetButton.setFont(font)
 
         self.horizontalLayout.addWidget(self.view2DResetButton)
diff --git a/src/minder3d/lib/ui_sovView3DPanelWidget.py b/src/minder3d/lib/ui_sovView3DPanelWidget.py
index 0935c7a..3c45daf 100644
--- a/src/minder3d/lib/ui_sovView3DPanelWidget.py
+++ b/src/minder3d/lib/ui_sovView3DPanelWidget.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ################################################################################
-## Form generated from reading UI file 'sovView3DPanelWidgeteiJpxx.ui'
+## Form generated from reading UI file 'sovView3DPanelWidgetsmQRpG.ui'
 ##
 ## Created by: Qt User Interface Compiler version 6.5.0
 ##
@@ -15,15 +15,15 @@
     QFont, QFontDatabase, QGradient, QIcon,
     QImage, QKeySequence, QLinearGradient, QPainter,
     QPalette, QPixmap, QRadialGradient, QTransform)
-from PySide6.QtWidgets import (QApplication, QComboBox, QHBoxLayout, QPushButton,
-    QSizePolicy, QSlider, QSpacerItem, QVBoxLayout,
-    QWidget)
+from PySide6.QtWidgets import (QApplication, QComboBox, QGridLayout, QLabel,
+    QPushButton, QSizePolicy, QSlider, QSpacerItem,
+    QVBoxLayout, QWidget)
 
 class Ui_View3DPanelWidget(object):
     def setupUi(self, View3DPanelWidget):
         if not View3DPanelWidget.objectName():
             View3DPanelWidget.setObjectName(u"View3DPanelWidget")
-        View3DPanelWidget.resize(410, 467)
+        View3DPanelWidget.resize(410, 522)
         self.verticalLayout = QVBoxLayout(View3DPanelWidget)
         self.verticalLayout.setSpacing(3)
         self.verticalLayout.setObjectName(u"verticalLayout")
@@ -35,23 +35,68 @@ def setupUi(self, View3DPanelWidget):
 
         self.verticalLayout_2.addLayout(self.view3DLayout)
 
-        self.horizontalLayout_2 = QHBoxLayout()
-        self.horizontalLayout_2.setObjectName(u"horizontalLayout_2")
-        self.view3DBkgComboBox = QComboBox(View3DPanelWidget)
-        self.view3DBkgComboBox.addItem("")
-        self.view3DBkgComboBox.addItem("")
-        self.view3DBkgComboBox.addItem("")
-        self.view3DBkgComboBox.addItem("")
-        self.view3DBkgComboBox.setObjectName(u"view3DBkgComboBox")
+        self.gridLayout = QGridLayout()
+        self.gridLayout.setObjectName(u"gridLayout")
+        self.view3DColorShiftSlider = QSlider(View3DPanelWidget)
+        self.view3DColorShiftSlider.setObjectName(u"view3DColorShiftSlider")
+        sizePolicy = QSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.view3DColorShiftSlider.sizePolicy().hasHeightForWidth())
+        self.view3DColorShiftSlider.setSizePolicy(sizePolicy)
+        self.view3DColorShiftSlider.setMinimumSize(QSize(100, 12))
         font = QFont()
         font.setPointSize(7)
-        self.view3DBkgComboBox.setFont(font)
+        self.view3DColorShiftSlider.setFont(font)
+        self.view3DColorShiftSlider.setMaximum(100)
+        self.view3DColorShiftSlider.setValue(99)
+        self.view3DColorShiftSlider.setOrientation(Qt.Horizontal)
+
+        self.gridLayout.addWidget(self.view3DColorShiftSlider, 1, 4, 1, 1)
+
+        self.horizontalSpacer_3 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
+
+        self.gridLayout.addItem(self.horizontalSpacer_3, 1, 3, 1, 1)
+
+        self.label = QLabel(View3DPanelWidget)
+        self.label.setObjectName(u"label")
+        sizePolicy1 = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Fixed)
+        sizePolicy1.setHorizontalStretch(0)
+        sizePolicy1.setVerticalStretch(0)
+        sizePolicy1.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth())
+        self.label.setSizePolicy(sizePolicy1)
+
+        self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
+
+        self.view3DOpacitySlicer = QSlider(View3DPanelWidget)
+        self.view3DOpacitySlicer.setObjectName(u"view3DOpacitySlicer")
+        sizePolicy.setHeightForWidth(self.view3DOpacitySlicer.sizePolicy().hasHeightForWidth())
+        self.view3DOpacitySlicer.setSizePolicy(sizePolicy)
+        self.view3DOpacitySlicer.setMinimumSize(QSize(100, 12))
+        self.view3DOpacitySlicer.setOrientation(Qt.Horizontal)
+
+        self.gridLayout.addWidget(self.view3DOpacitySlicer, 1, 2, 1, 1)
+
+        self.horizontalSpacer_2 = QSpacerItem(80, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
+
+        self.gridLayout.addItem(self.horizontalSpacer_2, 1, 5, 1, 1)
+
+        self.view3DResetButton = QPushButton(View3DPanelWidget)
+        self.view3DResetButton.setObjectName(u"view3DResetButton")
+        sizePolicy.setHeightForWidth(self.view3DResetButton.sizePolicy().hasHeightForWidth())
+        self.view3DResetButton.setSizePolicy(sizePolicy)
+        self.view3DResetButton.setMinimumSize(QSize(30, 0))
+        self.view3DResetButton.setMaximumSize(QSize(30, 16777215))
+        self.view3DResetButton.setFont(font)
 
-        self.horizontalLayout_2.addWidget(self.view3DBkgComboBox)
+        self.gridLayout.addWidget(self.view3DResetButton, 1, 6, 1, 1)
 
-        self.horizontalSpacer = QSpacerItem(50, 20, QSizePolicy.Fixed, QSizePolicy.Minimum)
+        self.label_3 = QLabel(View3DPanelWidget)
+        self.label_3.setObjectName(u"label_3")
+        sizePolicy1.setHeightForWidth(self.label_3.sizePolicy().hasHeightForWidth())
+        self.label_3.setSizePolicy(sizePolicy1)
 
-        self.horizontalLayout_2.addItem(self.horizontalSpacer)
+        self.gridLayout.addWidget(self.label_3, 0, 4, 1, 1)
 
         self.view3DViewComboBox = QComboBox(View3DPanelWidget)
         self.view3DViewComboBox.addItem("")
@@ -60,44 +105,28 @@ def setupUi(self, View3DPanelWidget):
         self.view3DViewComboBox.addItem("")
         self.view3DViewComboBox.addItem("")
         self.view3DViewComboBox.addItem("")
+        self.view3DViewComboBox.addItem("")
         self.view3DViewComboBox.setObjectName(u"view3DViewComboBox")
+        sizePolicy.setHeightForWidth(self.view3DViewComboBox.sizePolicy().hasHeightForWidth())
+        self.view3DViewComboBox.setSizePolicy(sizePolicy)
+        self.view3DViewComboBox.setMinimumSize(QSize(75, 0))
         self.view3DViewComboBox.setFont(font)
 
-        self.horizontalLayout_2.addWidget(self.view3DViewComboBox)
+        self.gridLayout.addWidget(self.view3DViewComboBox, 1, 0, 1, 1)
 
-        self.view3DOpacitySlider = QSlider(View3DPanelWidget)
-        self.view3DOpacitySlider.setObjectName(u"view3DOpacitySlider")
-        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.view3DOpacitySlider.sizePolicy().hasHeightForWidth())
-        self.view3DOpacitySlider.setSizePolicy(sizePolicy)
-        self.view3DOpacitySlider.setMinimumSize(QSize(0, 12))
-        self.view3DOpacitySlider.setFont(font)
-        self.view3DOpacitySlider.setMaximum(100)
-        self.view3DOpacitySlider.setValue(99)
-        self.view3DOpacitySlider.setOrientation(Qt.Horizontal)
+        self.label_2 = QLabel(View3DPanelWidget)
+        self.label_2.setObjectName(u"label_2")
+        sizePolicy1.setHeightForWidth(self.label_2.sizePolicy().hasHeightForWidth())
+        self.label_2.setSizePolicy(sizePolicy1)
 
-        self.horizontalLayout_2.addWidget(self.view3DOpacitySlider)
+        self.gridLayout.addWidget(self.label_2, 0, 2, 1, 1)
 
-        self.horizontalSpacer_2 = QSpacerItem(50, 20, QSizePolicy.Fixed, QSizePolicy.Minimum)
+        self.horizontalSpacer = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
 
-        self.horizontalLayout_2.addItem(self.horizontalSpacer_2)
-
-        self.view3DResetButton = QPushButton(View3DPanelWidget)
-        self.view3DResetButton.setObjectName(u"view3DResetButton")
-        sizePolicy1 = QSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
-        sizePolicy1.setHorizontalStretch(0)
-        sizePolicy1.setVerticalStretch(0)
-        sizePolicy1.setHeightForWidth(self.view3DResetButton.sizePolicy().hasHeightForWidth())
-        self.view3DResetButton.setSizePolicy(sizePolicy1)
-        self.view3DResetButton.setMinimumSize(QSize(35, 0))
-        self.view3DResetButton.setFont(font)
-
-        self.horizontalLayout_2.addWidget(self.view3DResetButton)
+        self.gridLayout.addItem(self.horizontalSpacer, 1, 1, 1, 1)
 
 
-        self.verticalLayout_2.addLayout(self.horizontalLayout_2)
+        self.verticalLayout_2.addLayout(self.gridLayout)
 
 
         self.verticalLayout.addLayout(self.verticalLayout_2)
@@ -110,18 +139,17 @@ def setupUi(self, View3DPanelWidget):
 
     def retranslateUi(self, View3DPanelWidget):
         View3DPanelWidget.setWindowTitle(QCoreApplication.translate("View3DPanelWidget", u"Form", None))
-        self.view3DBkgComboBox.setItemText(0, QCoreApplication.translate("View3DPanelWidget", u"Black", None))
-        self.view3DBkgComboBox.setItemText(1, QCoreApplication.translate("View3DPanelWidget", u"Grey", None))
-        self.view3DBkgComboBox.setItemText(2, QCoreApplication.translate("View3DPanelWidget", u"White", None))
-        self.view3DBkgComboBox.setItemText(3, QCoreApplication.translate("View3DPanelWidget", u"Blue-Grey", None))
-
+        self.label.setText(QCoreApplication.translate("View3DPanelWidget", u"Image View", None))
+        self.view3DResetButton.setText(QCoreApplication.translate("View3DPanelWidget", u"Reset", None))
+        self.label_3.setText(QCoreApplication.translate("View3DPanelWidget", u"Color Shift", None))
         self.view3DViewComboBox.setItemText(0, QCoreApplication.translate("View3DPanelWidget", u"None", None))
         self.view3DViewComboBox.setItemText(1, QCoreApplication.translate("View3DPanelWidget", u"Axial", None))
         self.view3DViewComboBox.setItemText(2, QCoreApplication.translate("View3DPanelWidget", u"Coronal", None))
         self.view3DViewComboBox.setItemText(3, QCoreApplication.translate("View3DPanelWidget", u"Sagittal", None))
         self.view3DViewComboBox.setItemText(4, QCoreApplication.translate("View3DPanelWidget", u"All Planes", None))
-        self.view3DViewComboBox.setItemText(5, QCoreApplication.translate("View3DPanelWidget", u"Volume", None))
+        self.view3DViewComboBox.setItemText(5, QCoreApplication.translate("View3DPanelWidget", u"Volume: CTA", None))
+        self.view3DViewComboBox.setItemText(6, "")
 
-        self.view3DResetButton.setText(QCoreApplication.translate("View3DPanelWidget", u"Reset", None))
+        self.label_2.setText(QCoreApplication.translate("View3DPanelWidget", u"Opacity", None))
     # retranslateUi
 
diff --git a/src/minder3d/lib/ui_sovVisualizationPanelWidget.py b/src/minder3d/lib/ui_sovVisualizationPanelWidget.py
index eb1ff10..6e6987b 100644
--- a/src/minder3d/lib/ui_sovVisualizationPanelWidget.py
+++ b/src/minder3d/lib/ui_sovVisualizationPanelWidget.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ################################################################################
-## Form generated from reading UI file 'sovVisualizationPanelWidgetRPuXNj.ui'
+## Form generated from reading UI file 'sovVisualizationPanelWidgetntFVpm.ui'
 ##
 ## Created by: Qt User Interface Compiler version 6.5.0
 ##
@@ -15,8 +15,9 @@
     QFont, QFontDatabase, QGradient, QIcon,
     QImage, QKeySequence, QLinearGradient, QPainter,
     QPalette, QPixmap, QRadialGradient, QTransform)
-from PySide6.QtWidgets import (QApplication, QCheckBox, QDoubleSpinBox, QFrame,
-    QLabel, QPushButton, QSizePolicy, QWidget)
+from PySide6.QtWidgets import (QApplication, QCheckBox, QComboBox, QDoubleSpinBox,
+    QFrame, QLabel, QPushButton, QSizePolicy,
+    QWidget)
 
 class Ui_VisualizationPanelWidget(object):
     def setupUi(self, VisualizationPanelWidget):
@@ -80,16 +81,27 @@ def setupUi(self, VisualizationPanelWidget):
         self.vizIntensityMaxLabel.setFont(font)
         self.viz3DFrame = QFrame(VisualizationPanelWidget)
         self.viz3DFrame.setObjectName(u"viz3DFrame")
-        self.viz3DFrame.setGeometry(QRect(240, 0, 151, 71))
+        self.viz3DFrame.setGeometry(QRect(240, 0, 241, 101))
         self.viz3DFrame.setFrameShape(QFrame.StyledPanel)
         self.viz3DFrame.setFrameShadow(QFrame.Raised)
         self.vizAutoUpdate3DSceneCheckBox = QCheckBox(self.viz3DFrame)
         self.vizAutoUpdate3DSceneCheckBox.setObjectName(u"vizAutoUpdate3DSceneCheckBox")
-        self.vizAutoUpdate3DSceneCheckBox.setGeometry(QRect(40, 40, 91, 20))
+        self.vizAutoUpdate3DSceneCheckBox.setGeometry(QRect(140, 40, 91, 20))
         self.vizAutoUpdate3DSceneCheckBox.setChecked(True)
         self.vizUpdate3DSceneButton = QPushButton(self.viz3DFrame)
         self.vizUpdate3DSceneButton.setObjectName(u"vizUpdate3DSceneButton")
-        self.vizUpdate3DSceneButton.setGeometry(QRect(10, 10, 121, 24))
+        self.vizUpdate3DSceneButton.setGeometry(QRect(110, 10, 121, 24))
+        self.vizView3DBackgroundComboBox = QComboBox(self.viz3DFrame)
+        self.vizView3DBackgroundComboBox.addItem("")
+        self.vizView3DBackgroundComboBox.addItem("")
+        self.vizView3DBackgroundComboBox.addItem("")
+        self.vizView3DBackgroundComboBox.addItem("")
+        self.vizView3DBackgroundComboBox.setObjectName(u"vizView3DBackgroundComboBox")
+        self.vizView3DBackgroundComboBox.setGeometry(QRect(110, 66, 121, 24))
+        self.vizView3DBackgroundComboBox.setFont(font)
+        self.vizIntensityMinLabel_2 = QLabel(self.viz3DFrame)
+        self.vizIntensityMinLabel_2.setObjectName(u"vizIntensityMinLabel_2")
+        self.vizIntensityMinLabel_2.setGeometry(QRect(20, 70, 81, 16))
 
         self.retranslateUi(VisualizationPanelWidget)
 
@@ -107,5 +119,11 @@ def retranslateUi(self, VisualizationPanelWidget):
         self.vizIntensityMaxLabel.setText(QCoreApplication.translate("VisualizationPanelWidget", u"Max:", None))
         self.vizAutoUpdate3DSceneCheckBox.setText(QCoreApplication.translate("VisualizationPanelWidget", u"Auto Update", None))
         self.vizUpdate3DSceneButton.setText(QCoreApplication.translate("VisualizationPanelWidget", u"Update 3D Scene", None))
+        self.vizView3DBackgroundComboBox.setItemText(0, QCoreApplication.translate("VisualizationPanelWidget", u"Black", None))
+        self.vizView3DBackgroundComboBox.setItemText(1, QCoreApplication.translate("VisualizationPanelWidget", u"Grey", None))
+        self.vizView3DBackgroundComboBox.setItemText(2, QCoreApplication.translate("VisualizationPanelWidget", u"White", None))
+        self.vizView3DBackgroundComboBox.setItemText(3, QCoreApplication.translate("VisualizationPanelWidget", u"Blue-Grey", None))
+
+        self.vizIntensityMinLabel_2.setText(QCoreApplication.translate("VisualizationPanelWidget", u"Background:", None))
     # retranslateUi
 
diff --git a/src/minder3d/lib/ui_sovWelcomePanelWidget.py b/src/minder3d/lib/ui_sovWelcomePanelWidget.py
index 8b63990..dcad4ea 100644
--- a/src/minder3d/lib/ui_sovWelcomePanelWidget.py
+++ b/src/minder3d/lib/ui_sovWelcomePanelWidget.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ################################################################################
-## Form generated from reading UI file 'sovWelcomePanelWidgetZDuWhr.ui'
+## Form generated from reading UI file 'sovWelcomePanelWidgetkiiigT.ui'
 ##
 ## Created by: Qt User Interface Compiler version 6.5.0
 ##
@@ -15,42 +15,37 @@
     QFont, QFontDatabase, QGradient, QIcon,
     QImage, QKeySequence, QLinearGradient, QPainter,
     QPalette, QPixmap, QRadialGradient, QTransform)
-from PySide6.QtWidgets import (QApplication, QPushButton, QSizePolicy, QTextEdit,
-    QWidget)
+from PySide6.QtWidgets import (QApplication, QPushButton, QSizePolicy, QWidget)
 
 class Ui_WelcomePanelWidget(object):
     def setupUi(self, WelcomePanelWidget):
         if not WelcomePanelWidget.objectName():
             WelcomePanelWidget.setObjectName(u"WelcomePanelWidget")
         WelcomePanelWidget.resize(667, 153)
-        self.welcomeTextEdit = QTextEdit(WelcomePanelWidget)
-        self.welcomeTextEdit.setObjectName(u"welcomeTextEdit")
-        self.welcomeTextEdit.setGeometry(QRect(20, 10, 301, 131))
-        self.welcomeTextEdit.setReadOnly(True)
         self.welcomeLoadImageButton = QPushButton(WelcomePanelWidget)
         self.welcomeLoadImageButton.setObjectName(u"welcomeLoadImageButton")
-        self.welcomeLoadImageButton.setGeometry(QRect(360, 20, 121, 24))
+        self.welcomeLoadImageButton.setGeometry(QRect(20, 10, 121, 24))
         self.welcomeImportDICOMButton = QPushButton(WelcomePanelWidget)
         self.welcomeImportDICOMButton.setObjectName(u"welcomeImportDICOMButton")
-        self.welcomeImportDICOMButton.setGeometry(QRect(360, 110, 121, 24))
+        self.welcomeImportDICOMButton.setGeometry(QRect(20, 70, 121, 24))
         self.welcomeSaveImageButton = QPushButton(WelcomePanelWidget)
         self.welcomeSaveImageButton.setObjectName(u"welcomeSaveImageButton")
-        self.welcomeSaveImageButton.setGeometry(QRect(520, 20, 121, 24))
+        self.welcomeSaveImageButton.setGeometry(QRect(300, 10, 121, 24))
         self.welcomeSaveSceneButton = QPushButton(WelcomePanelWidget)
         self.welcomeSaveSceneButton.setObjectName(u"welcomeSaveSceneButton")
-        self.welcomeSaveSceneButton.setGeometry(QRect(520, 80, 121, 24))
+        self.welcomeSaveSceneButton.setGeometry(QRect(160, 10, 121, 24))
         self.welcomeLoadSceneButton = QPushButton(WelcomePanelWidget)
         self.welcomeLoadSceneButton.setObjectName(u"welcomeLoadSceneButton")
-        self.welcomeLoadSceneButton.setGeometry(QRect(360, 80, 121, 24))
+        self.welcomeLoadSceneButton.setGeometry(QRect(160, 40, 121, 24))
         self.welcomeSaveOverlayButton = QPushButton(WelcomePanelWidget)
         self.welcomeSaveOverlayButton.setObjectName(u"welcomeSaveOverlayButton")
-        self.welcomeSaveOverlayButton.setGeometry(QRect(520, 50, 121, 24))
+        self.welcomeSaveOverlayButton.setGeometry(QRect(440, 40, 121, 24))
         self.welcomeSaveVTKModelsButton = QPushButton(WelcomePanelWidget)
         self.welcomeSaveVTKModelsButton.setObjectName(u"welcomeSaveVTKModelsButton")
-        self.welcomeSaveVTKModelsButton.setGeometry(QRect(520, 110, 121, 24))
+        self.welcomeSaveVTKModelsButton.setGeometry(QRect(300, 40, 121, 24))
         self.welcomeLoadOverlayButton = QPushButton(WelcomePanelWidget)
         self.welcomeLoadOverlayButton.setObjectName(u"welcomeLoadOverlayButton")
-        self.welcomeLoadOverlayButton.setGeometry(QRect(360, 50, 121, 24))
+        self.welcomeLoadOverlayButton.setGeometry(QRect(440, 10, 121, 24))
 
         self.retranslateUi(WelcomePanelWidget)
 
@@ -59,25 +54,6 @@ def setupUi(self, WelcomePanelWidget):
 
     def retranslateUi(self, WelcomePanelWidget):
         WelcomePanelWidget.setWindowTitle(QCoreApplication.translate("WelcomePanelWidget", u"Form", None))
-        self.welcomeTextEdit.setHtml(QCoreApplication.translate("WelcomePanelWidget", u"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
-"<html><head><meta name=\"qrichtext\" content=\"1\" /><meta charset=\"utf-8\" /><style type=\"text/css\">\n"
-"p, li { white-space: pre-wrap; }\n"
-"hr { height: 1px; border-width: 0; }\n"
-"li.unchecked::marker { content: \"\\2610\"; }\n"
-"li.checked::marker { content: \"\\2612\"; }\n"
-"</style></head><body style=\" font-family:'Segoe UI'; font-size:9pt; font-weight:400; font-style:normal;\">\n"
-"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-weight:700;\">Welcome to Minder3D!</span></p>\n"
-"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
-"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">To get started, load data using the buttons to the r"
-                        "ight, the list of registered data on the left, or the &quot;File&quot; menu at the top.</p>\n"
-"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
-"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">You can also import DICOM data, which will open a new tab to gather the necessary information.</p>\n"
-"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
-"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">To process your data, select a method from the &quot;New Task&quot; tab.</p>\n"
-"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p>\n"
-"<p style=\" margin-t"
-                        "op:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">If you have questions or suggestions, please visit</p>\n"
-"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">   <a href=\"https://github.com/aylward/Minder3D\"><span style=\" text-decoration: underline; color:#0000ff;\">https://github.com/aylward/Minder3D</span></a></p></body></html>", None))
         self.welcomeLoadImageButton.setText(QCoreApplication.translate("WelcomePanelWidget", u"Load Image", None))
         self.welcomeImportDICOMButton.setText(QCoreApplication.translate("WelcomePanelWidget", u"Import DICOM Data", None))
         self.welcomeSaveImageButton.setText(QCoreApplication.translate("WelcomePanelWidget", u"Save Image", None))
diff --git a/src/minder3d/minder3DWindow.py b/src/minder3d/minder3DWindow.py
index 2258e77..1b3b421 100644
--- a/src/minder3d/minder3DWindow.py
+++ b/src/minder3d/minder3DWindow.py
@@ -1,6 +1,7 @@
 import os
 
 import itk
+import itk.itkGDCMImageIOPython
 import numpy as np
 import vtk
 from PySide6.QtCore import QCoreApplication, QFileInfo
@@ -19,10 +20,12 @@
 from .lib.sovUtils import (
     LogWindow,
     add_objects_in_mask_image_to_scene,
+    compress_scene_for_saving,
     get_children_as_list,
     read_group,
     resample_overlay_to_match_image,
     time_and_log,
+    uncompress_scene_after_loading,
     write_group,
 )
 from .lib.sovView2DPanelWidget import View2DPanelWidget
@@ -50,7 +53,7 @@ def __init__(self, parent=None):
 
         self.log_window = LogWindow(self.state.logger)
         self.statusViewLogButton.pressed.connect(self.log_window.show)
-        self.log_window.logger.setLevel('INFO')
+        self.log_window.logger.setLevel('WARNING')
 
         self.state.scene.SetId(self.state.scene.GetNextAvailableId())
 
@@ -197,7 +200,16 @@ def load_image(self, filename=None):
             if self.file_dialog.exec() == QFileDialog.Accepted:
                 filename = self.file_dialog.selectedFiles()[0]
         if filename is not None:
-            img = itk.imread(filename, self.state.image_pixel_type)
+            imageio = None
+            # info = QFileInfo(filename)
+            # if info.isDir():
+            # print("It's DICOM!")
+            # imageio = itk.GDCMImageIO.New()
+            # imageio.LoadPrivateTagsOn()
+            img = itk.imread(
+                filename, self.state.image_pixel_type, imageio=imageio
+            )
+            # print(img.GetMetaDataDictionary())
             if img is None:
                 self.log('Image could not be loaded.', 'error')
                 return
@@ -259,6 +271,7 @@ def load_scene(self, filename=None):
                 self.log('Scene could not be loaded.', 'error')
                 return
 
+            self.state.scene = uncompress_scene_after_loading(self.state.scene)
             self.update_scene()
 
             self.imageTablePanel.load_scene()
@@ -365,7 +378,9 @@ def save_scene(self, filename=None):
         if filename:
             self.state.scene_filename = os.path.abspath(filename)
             self.log(f'Saving scene to {filename}')
-            write_group(self.state.scene, filename)
+            new_scene = compress_scene_for_saving(self.state.scene)
+            print(new_scene)
+            write_group(new_scene, filename)
             self.imageTablePanel.save_scene(filename)
 
     @time_and_log
@@ -520,7 +535,6 @@ def update_scene(self):
                 so.GetProperty().SetTagStringValue(
                     'Name', f'{so.GetTypeName()} {so.GetId()}'
                 )
-            print(so.GetProperty().GetTagStringValue('Name'))
 
         if self.state.view2D_overlay_auto_update:
             self.view2DPanel.update_scene()
diff --git a/src/minder3d/minder3DWindow.ui b/src/minder3d/minder3DWindow.ui
index fd662c7..2da554d 100644
--- a/src/minder3d/minder3DWindow.ui
+++ b/src/minder3d/minder3DWindow.ui
@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>1024</width>
+    <width>1274</width>
     <height>675</height>
    </rect>
   </property>
@@ -153,20 +153,20 @@
              </size>
             </property>
             <property name="currentIndex">
-             <number>0</number>
+             <number>2</number>
             </property>
             <property name="tabsClosable">
              <bool>true</bool>
             </property>
             <widget class="QWidget" name="welcomeTab">
              <attribute name="title">
-              <string>Welcome</string>
+              <string>Load / Save Data</string>
              </attribute>
              <layout class="QHBoxLayout" name="welcomeTabLayout"/>
             </widget>
             <widget class="QWidget" name="visualizationTab">
              <attribute name="title">
-              <string>Visualization</string>
+              <string>Advanced Visualization</string>
              </attribute>
              <layout class="QHBoxLayout" name="visualizationTabLayout"/>
             </widget>
@@ -290,7 +290,7 @@
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>1024</width>
+     <width>1274</width>
      <height>22</height>
     </rect>
    </property>
diff --git a/src/minder3d/ui_minder3DWindow.py b/src/minder3d/ui_minder3DWindow.py
index efbbc06..407d559 100644
--- a/src/minder3d/ui_minder3DWindow.py
+++ b/src/minder3d/ui_minder3DWindow.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ################################################################################
-## Form generated from reading UI file 'minder3DWindowZcklJE.ui'
+## Form generated from reading UI file 'minder3DWindownkNdyQ.ui'
 ##
 ## Created by: Qt User Interface Compiler version 6.5.0
 ##
@@ -25,7 +25,7 @@ class Ui_MainWindow(object):
     def setupUi(self, MainWindow):
         if not MainWindow.objectName():
             MainWindow.setObjectName(u"MainWindow")
-        MainWindow.resize(1024, 675)
+        MainWindow.resize(1274, 675)
         MainWindow.setMinimumSize(QSize(1024, 0))
         self.loadImageMenuItem = QAction(MainWindow)
         self.loadImageMenuItem.setObjectName(u"loadImageMenuItem")
@@ -198,7 +198,7 @@ def setupUi(self, MainWindow):
         MainWindow.setCentralWidget(self.centralwidget)
         self.menubar = QMenuBar(MainWindow)
         self.menubar.setObjectName(u"menubar")
-        self.menubar.setGeometry(QRect(0, 0, 1024, 22))
+        self.menubar.setGeometry(QRect(0, 0, 1274, 22))
         self.fileMenu = QMenu(self.menubar)
         self.fileMenu.setObjectName(u"fileMenu")
         MainWindow.setMenuBar(self.menubar)
@@ -214,7 +214,7 @@ def setupUi(self, MainWindow):
 
         self.retranslateUi(MainWindow)
 
-        self.tabWidget.setCurrentIndex(0)
+        self.tabWidget.setCurrentIndex(2)
 
 
         QMetaObject.connectSlotsByName(MainWindow)
@@ -229,8 +229,8 @@ def retranslateUi(self, MainWindow):
         self.loadSceneMenuItem.setText(QCoreApplication.translate("MainWindow", u"Load Spatial Objects", None))
         self.saveSceneMenuItem.setText(QCoreApplication.translate("MainWindow", u"Save Spatial Objects", None))
         self.savePreProcessedOverlayMenuItem.setText(QCoreApplication.translate("MainWindow", u"Save Pre-Processed Overlay", None))
-        self.tabWidget.setTabText(self.tabWidget.indexOf(self.welcomeTab), QCoreApplication.translate("MainWindow", u"Welcome", None))
-        self.tabWidget.setTabText(self.tabWidget.indexOf(self.visualizationTab), QCoreApplication.translate("MainWindow", u"Visualization", None))
+        self.tabWidget.setTabText(self.tabWidget.indexOf(self.welcomeTab), QCoreApplication.translate("MainWindow", u"Load / Save Data", None))
+        self.tabWidget.setTabText(self.tabWidget.indexOf(self.visualizationTab), QCoreApplication.translate("MainWindow", u"Advanced Visualization", None))
         self.tabWidget.setTabText(self.tabWidget.indexOf(self.newTaskTab), QCoreApplication.translate("MainWindow", u"New Task", None))
         self.statusLabel.setText(QCoreApplication.translate("MainWindow", u"Status:", None))
         self.statusViewLogButton.setText(QCoreApplication.translate("MainWindow", u"View Log", None))