a method to speed up video packaging and / or in order to improve its quality

摘要

A method (800, 820 ), device (900 ) and program product for compression video information is presented. The method comprises the following steps: projecting (803 ) points of a next image to a three-dimensional space using camera parameters and depth map and projecting (805 ) projected points from the three-dimensional space to reference image surface, thereby obtaining motion vectors for estimating changes between the next image and the reference image.