专利名称:Compression based reduced memory video
decoder
发明人:Jay Yogeshwar申请号:US08669218申请日:19960624公开号:US06222886B1公开日:20010424
专利附图:
摘要:A compressed video decoder receives a stream of compressed video data in achannel buffer, and decompresses it. A portion of the decompressed video data isrecompressed as intraframe data to serve as an anchor frame. The intraframe data is
motion compensated, and then a reference picture is selected. The reference frame datais decompressed. Next, a region of interest is selected and stored in display memory forthe decompressed form. The recompression of data to be used as an anchor frame canbe done in a substantially lossless manner by using DCT with the same quantizationmatrix, quantizer scale, and field/frame coding type.
申请人:KABUSHIKI KAISHA TOSHIBA
代理机构:Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
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