* add videos splitting when they are too long
 * add already coputed groundtruth index
 * add point cloud densening by colmap
 * use matrix until the end instead of mlp files : thanks to this, the matrix can be modified manually with a custom point cloud registration

extract_video_from_model will convert a bin model to a text one with only the camera we want
dxf_to_ply will convert the dx model to a ply model