Method and apparatus for using small-sized buffer in compression/decompression with block prediction

A buffer device is used by a compressor/decompressor with block prediction for storing information needed to encode/decode a pixel line. Vector information (e.g., final block prediction vector information and/or partial block prediction vector information) of at least one later pixel group is comput...

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Bibliographic Details
Main Authors Lee, Kun-Bin, Wu, Tung-Hsing
Format Patent
LanguageEnglish
Published 27.11.2018
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A buffer device is used by a compressor/decompressor with block prediction for storing information needed to encode/decode a pixel line. Vector information (e.g., final block prediction vector information and/or partial block prediction vector information) of at least one later pixel group is computed while a current pixel group is being encoded/decoded. The buffer device does not need to store vector information of all pixel groups of one pixel line at the same time. For example, one pixel line is composed of M pixel groups; and when the compressor/decompressor is encoding/decoding the current pixel line, final/partial vector information sets of at most K pixel groups are allowed to be stored in the buffer device simultaneously, where K is a positive integer smaller than M.
Bibliography:Application Number: US201414531930