Patent ID: 8345768

Claim:
A method of processing a sequence of images, the method comprising: determining, by a computer comprising one or more processors, a plurality of pixel image blocks of a frame in the sequence of images are of a picture type, the frame in the sequence of images comprising a plurality of static image types determined using intra-frame decomposition analysis of the frame, the plurality of static image types including the picture type, and a text type; determining change information for the plurality of pixel image block blocks, the change information comprising a pixel change detection of associated block locations of the plurality of pixel image block with respect to a plurality of frames of the sequence of images; processing a first pixel image block of the plurality of pixel image blocks as a video type image based on the picture type and the change information indicating a periodic change rate slower than a frame rate of the sequence of images for the first pixel image block; and processing a second pixel image block of the plurality of pixel image blocks as non-video type image based on a non-periodic change record of the second pixel image block, the processing of the second pixel image block comprising encoding the second pixel image block at an initial quality followed by a second encoding at an increased quality if the second pixel image block remains unchanged, wherein encoding the first pixel image block as the video type image comprises encoding the pixel image block once at a fixed quality while the first pixel image block remains unchanged.