发明名称 |
Shuffling device, coding device, decoding device of video signal and medium recording the programs of shuffling, coding and decoding |
摘要 |
A video signal shuffling device forms a segment with blocks having a given offset value in horizontal and vertical directions from a given starting point uniquely determined on the screen, the offset value being identical in every region. The segment is formed in a unit of one frame or two frames. The shuffling device divides one frame comprising blocks into a plurality of regions. A coding device determines a final priority as well as a final quantizer thereby quantizing a segment and providing the segment with a variable-length-coding based on a first priority, coding-quantity obtained from a plurality of quantizers, second priority and a quantizer. A coding device and its decoder, the coding device carries out a hierarchical coding by only a motion vector in a compressed stream at a lower resolution side and by agreeing a motion detected and a DCT block size with a size on the screen.
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申请公布号 |
US6847685(B1) |
申请公布日期 |
2005.01.25 |
申请号 |
US20000589800 |
申请日期 |
2000.06.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
FUJIWARA YUJI;NISHINO MASAKAZU;MIYASHITA MITSUHIRO;WAKE KAZUHIRO;TAKEUCHI SEIICHI;OKAMOTO KEISHI |
分类号 |
H04N7/24;H04N7/30;(IPC1-7):H04N7/12;H04N7/64 |
主分类号 |
H04N7/24 |
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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