Checkerboard instructions

Author: lola-masson

CalibrationRoutines/checkerboard.md

@@ -0,0 +1,17 @@
+# The checkerboard calibration target
+
+Both calibration routines provided by ifm, the static camera calibration (SCC) and the motion camera calibration (MCC), use the same calibration target.
+
+You can download the checkerboard in PDF format {download}` here <resources/checkerboardCalibrationTarget_600X800.pdf>`.
+
+## Printing instructions
+
+The checkerboard should be printed at scale, such that the printed size is:
+- A page of 600 x 800 mm,
+- The black and white squares are 10 cm each,
+- The white border is 5 cm,
+- The larger black square is 15 x 15 cm.
+
+The checkerboard should be printed on:
+- A rigid board, so that it will not bend when used,
+- Matte paper, such that reflections from the camera are minimized.

CalibrationRoutines/index_calibrations.md

@@ -2,6 +2,15 @@
 
 The extrinsic camera calibration specifies where the camera head is positioned in a reference coordinate system. Several calibration routines were developed at ifm to estimate the translations and rotations of cameras and OVP respective to a user defined coordinate system.
 
+First, you need a checkerboard calibration target.
+
+:::{grid-item-card}
+:link: checkerboard
+:link-type: doc
+![Mini checkerboard](resources/mini-checkerboard.png)
+Print the checkerboard
+:::
+
 
 ::::::{grid} 2
 :gutter: 3
@@ -48,6 +57,7 @@ Need a refresher?
 :::{toctree}
 :maxdepth: 1
 :hidden:
+The checkerboard calibration target <checkerboard>
 Introduction to calibration <IntroToCalibrations/README>
 Static Camera Calibration <SCC/README>
 Motion Camera Calibration <MCC/mcc_with_wizard>