发明名称 |
Video coding apparatus which outputs a code string having a plurality of components which are arranged in a descending order of importance |
摘要 |
A video coding/decoding apparatus comprises a prediction circuit that divides an input video signal into large regions and small regions in a hierarchical fashion and produces a prediction signal by performing prediction region by region, a subtracter for generating a prediction error signal for a prediction signal at the lowest level, a DCT circuit for coding a prediction error signal, a quantization circuit and a variable-length encoder, a variable-length encoder for coding the prediction mode and motion vector information obtained at each level from the prediction circuit, and a multiplexer for multiplexing the code strings obtained from the variable-length encoder and dividing them into the upper-layer and lower-layer code strings to output the code strings obtained at the variable-length encoder particularly as upper-layer code strings.
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申请公布号 |
US6128342(A) |
申请公布日期 |
2000.10.03 |
申请号 |
US19980223780 |
申请日期 |
1998.12.31 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KIKUCHI, YOSHIHIRO;WATANABE, TOSHIAKI;DACHIKU, KENSHI;IDA, TAKASHI;YAMAGUCHI, NOBORU;CHUJOH, TAKESHI |
分类号 |
G06T9/00;H04N7/26;H04N7/36;H04N7/50;H04N7/52;(IPC1-7):H04N7/12 |
主分类号 |
G06T9/00 |
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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