METHOD OF ENCODING AND DECODING VIDEO STREAM FOR IMAGE COMPRESSION

摘要

The present invention is related to a method of the video data encoding and decoding, which plays an important role in digital video compression and decompression, specifically in encoding and decoding the video stream. The present invention significantly reduces the computing times compared to its counterparts in the field of video compression.

主权项

1. A method for encoding a video stream, the video stream comprising a series of images, each image being divided into a plurality of blocks, comprising:
storing a set of encoded image data in a buffer, each encoded image data in the set of encoded image data in the buffer being an encoded result corresponding to an image previously encoded; finding whether any image corresponding the set of encoded image data in the buffer having an image divergent level with respect to an image to be encoded being smaller than TH2; choosing the smallest image divergent level as the best match image divergent level from a pool of reference images in the buffer after comparing each image divergent level; and if such image being available, retrieving the encoded image data in the buffer associated to such image as the encoded result of the current image to be encoded.