发明名称 |
DIGITAL IMAGE CODING USING RANDOM SCANNING |
摘要 |
In a video signal coder blocks of pixels are generated, scanned in a pseudo-random order and transformed blocks of coefficients which are stored in a buffer. The resulting blocks of coefficients are quantized individually by the use of a quantization level and the coefficients of each block are individually quantized by the use of a quantization matrix. The quantization level is determined by the fullness of the buffer.
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申请公布号 |
US5136371(A) |
申请公布日期 |
1992.08.04 |
申请号 |
US19900494101 |
申请日期 |
1990.03.15 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC. |
发明人 |
SAVATIER, TRISTAN;DELPUCH, ALAIN |
分类号 |
G06T9/00;H04N7/26;H04N7/30;H04N7/32;H04N7/50 |
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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