Cannot replicate CeptonViewer function with python library.

[paullavenderjones]

Hi,
I have a pcap file from a Cepton sensor and was trying to convert from image position to Cartesian coordinates.
To test my method I first tried converting from image position to Cartesian coordinates using the python function convert_image_points_to_points. I then compared them to the Cartesian points from a .ply file saved from the CeptonViewer software. However, they are not equivalent; when looking at the images below. The first image is from the .ply file from CeptonViewer and the second image is from the image positions which have been converted using convert_image_points_to_points. The black circle shows an example where there is a clear difference. Am I using the conversion function wrong or is this an issue with the SDK?

[kazuf3]

It looks the number of points drastically decreased. Did you check the timestamps of point cloud? I thought you might limited the sampling duration from original pcap.