发明名称 |
Data stream encoding method and apparatus for digital video compression |
摘要 |
The invention provides method and apparatus of video bit stream encoding. In non-intra type encoding, block pixel differences between a target block and the corresponding best match block is compared to other blocks' to determine whether a bit stream of a previously compressed block can be used to represent a target block. In Intra-coding, a target block is compared to other blocks to determine whether a bit stream of a previously compressed block can represent the target block. Should variance range of a block pixel of an intra-coded frame or block pixel differences of a non-intra coding frame is less than predetermined thresholds, the DC coefficient is represented by a predetermined value, or a certain amount of AC coefficients are calculated.
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申请公布号 |
US2005047504(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20030653585 |
申请日期 |
2003.09.03 |
申请人 |
SUNG CHIH-TA STAR;OUYANG YEN-CHIEH |
发明人 |
SUNG CHIH-TA STAR;OUYANG YEN-CHIEH |
分类号 |
H04N7/26;H04N7/46;H04N7/50;(IPC1-7):H04N7/12 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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