发明名称 |
Picture transmission system using minimal reference-frame modification to recover from transmission errors |
摘要 |
In a picture transmission system that transmits a series of pictures from a coding apparatus to a decoding apparatus, each picture being coded and decoded with reference to a preceding picture, when a transmission error occurs, the decoding apparatus detects a decoding error caused by the transmission error and sends an error signal to the coding apparatus. The coding apparatus and decoding apparatus then both modify part of a reference picture affected by the decoding error, making identical modifications. A subsequent picture is coded and decoded with reference to the modified reference picture, thereby recovering from the transmission error with minimum loss of coding efficiency and picture quality.
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申请公布号 |
US6683988(B1) |
申请公布日期 |
2004.01.27 |
申请号 |
US19990412322 |
申请日期 |
1999.10.05 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
FUKUNAGA SHIGERU;NAKAI TOSHIHISA |
分类号 |
H04N7/32;G06T9/00;H03M7/36;H04N5/00;H04N7/173;H04N7/24;(IPC1-7):G06K9/36;H04N7/12 |
主分类号 |
H04N7/32 |
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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