发明名称 |
Video signal encoding and decoding apparatus. |
摘要 |
<p>An encoding and decoding apparatus for a video signal and a high-definition television signal is disclosed. For the picture A having the horizontal to vertical screen frame ratio of 4:3, the picture B having the horizontal to vertical screen frame ratio of 16:9 and the picture C having the horizontal to vertical screen frame ratio of 16:9 and having a larger number of vertical pixels than that of the picture A and picture B, the apparatus limits the band of the picture C to obtain the picture D having the same numbers of horizontal and vertical pixels respectively as those of the picture B, and high-efficiency encodes the picture A, picture B or picture D in the same method. The apparatus obtains the additional picture E which is a difference between the picture D and the picture C, or a difference between the picture D min which is a result of decoding a signal that has been obtained by high-efficiency encoding the picture D and the picture C, and then high-efficiency encodes the additional picture E obtained. <IMAGE></p> |
申请公布号 |
EP0515143(A2) |
申请公布日期 |
1992.11.25 |
申请号 |
EP19920304529 |
申请日期 |
1992.05.19 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
NISHINO, MASAKAZU;YAMAMITSU, CHOJURO;JURI, TATSURO;MATSUTA, TOYOHIKO;AWAMOTO, SHIGERU |
分类号 |
H04N5/44;H04N7/015;H04N7/08;H04N7/26;H04N7/30;H04N7/46 |
主分类号 |
H04N5/44 |
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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