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PCQM

PCQM, an objective metric for visual quality assessment of colored 3D point clouds.
This full-reference metric is an optimally-weighted linear combination of geometry-based and color-based features.

This project is the implementation of our paper "PCQM: A Full-Reference Quality Metric for Colored 3D Point Clouds"

Here is the list of the parameters :

  • -r Set a radius for the construction of the neighborhood. As the bounding box is already computed with this program, use proposed value. (default : 0.004)
  • -knn Set the number of points used for the quadric surface construction. (default : 20)
  • -rx Set a radius factor for the statistic computation. (default : 2.0)
  • -fq Keep the console open for single testing

Please verify that those files are in the build folder at the post generation step.
L_data.txt
RegularGrid_0_0_1.txt
RegularGrid_0_0_2.txt
RegularGridInit_0_0_1.txt
RegularGridInit_0_0_2.txt

To use the compiled binary :

Windows : 
	PCQM.exe reference_objet.ply registered_object.ply -r 0.004 -knn 20 -rx 2.0	  
	
Linux : 
	./PCQM reference_objet.ply registered_object.ply -r 0.004 -knn 20 -rx 2.0

Input files can be binaries or plain text in the .ply format with the following header structure :

ply
format ascii 1.0
element vertex 686061 {number of points}
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
end_header
3.64728 1.3294 -11.1118 124 109 86
3.60579 1.3331 -11.1118 124 110 89
3.5726 1.3294 -11.1118 133 116 84
3.55601 1.3331 -11.1118 130 112 82
3.63898 1.3294 -11.1118 124 110 87
3.5975 1.3331 -11.1118 126 112 89
3.56431 1.3331 -11.1118 133 116 84
3.54771 1.33679 -11.1118 128 110 82
3.61409 1.3294 -11.1118 123 107 86 
3.65557 1.3331 -11.1118 121 107 84 
3.5809 1.3294 -11.1118 130 114 86 
3.63068 1.3294 -11.1118 123 107 86 
3.55601 1.34419 -11.1118 130 112 82 
3.5892 1.3331 -11.1118 128 112 87 
3.65557 1.33679 -11.1118 123 107 84 
3.55601 1.34789 -11.1118 130 114 84 
3.65557 1.34789 -11.1118 124 110 87 
3.5975 1.33679 -11.1118 126 110 87 
3.56431 1.33679 -11.1118 133 116 84 
3.63898 1.33679 -11.1145 126 110 89 
3.55601 1.33679 -11.1118 130 112 82 
3.60579 1.33679 -11.1118 124 110 87 
3.5726 1.33679 -11.1145 133 117 86

Output file is a csv "features_extracted.csv" containing :

reffile;regfile;F1;F2;F3;F4;F5;F6;F7;F8;PCQM
reference_objet;registered_object;0.287261;0.883497;0.317393;0.00135188;0.117714;0.308993;0.00394852;0.0387242;0.00844475

The documentation can be build using Doxygen.

Reference : PCQM: A Full-Reference Quality Metric for Colored 3D Point Clouds Gabriel Meynet,Yana Nehme, Julie Digne, Guillaume Lavoué, International Conference on Quality of Multimedia Experience (QoMEX), Full paper, Athlone, Ireland, 2020

Development of this software is part of the PISCo research project.