Compression based reduced memory video decoder

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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