发明名称 |
ENCODING MODE SELECTING METHOD, MOVING IMAGE ENCODING DEVICE, ENCODING METHOD, RECORDING METHOD AND TRANSMITTING METHOD |
摘要 |
<p>PROBLEM TO BE SOLVED: To exactly select a motion compensating mode by actually calculating a total code amount including the motion vectors of a moving image signal to be encoded in respective modes beforehand. SOLUTION: An image memory 142 stores at least two pieces of image data and outputs respective macro blocks for reference. Besides, these macro blocks are outputted to a motion vector detector 146 for motion vector detection and a mode decider 150 for mode decision. At the motion vector detector 146, the area most similar to the current macro block is found out of a reference frame by using a predictive error, for example. The motion vector detector 146 is composed of a forward detector 146F, bidirectional detector 146M and backward detector 146B and forward, bidirectional and backward motion vectors are respectively detected and outputted to a motion compensating mode selector 148 together with that predictive error. The motion compensating mode selector 148 selects the mode with the least predictive error.</p> |
申请公布号 |
JPH09322176(A) |
申请公布日期 |
1997.12.12 |
申请号 |
JP19960354884 |
申请日期 |
1996.12.20 |
申请人 |
SANYO ELECTRIC CO LTD |
发明人 |
KODAMA HIDEO;URANO TEN;KOBAYASHI TOMOKO;HAMAMOTO YASUHACHI;SUGIMOTO ETSUKO |
分类号 |
H04N5/92;H03M7/30;H03M7/38;H04N19/107;H04N19/112;H04N19/114;H04N19/134;H04N19/137;H04N19/147;H04N19/15;H04N19/152;H04N19/176;H04N19/196;H04N19/423;H04N19/46;H04N19/50;H04N19/503;H04N19/51;H04N19/567;H04N19/577;H04N19/61;H04N19/625;H04N19/70;H04N19/91;(IPC1-7):H04N7/32 |
主分类号 |
H04N5/92 |
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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