Patent ID: 8023750
Filing Date: 2011-09-20
Classification: H04N

Abstract:
1. A method of losslessly compressing and encoding video signals representing a motion sequence, the method comprising: receiving a series of images which comprise the motion sequence, a first image being one of the series; dividing the series of images into a plurality of blocks respectively, each of the blocks associated with a plurality of pixels of the first image, wherein said dividing is adaptive based on variance of pixels within each block; generating a lossy compressed data file indicative of the first image based on the blocks from the series of images; generating a residual compressed data file indicative of the first image based on the blocks from the first image; and combining the lossy data file with the residual data file to create a lossless data file, wherein the lossless data file is indicative of a reproduced image that is substantially identical to the first image.