发明名称 |
Selective prediction for intra-coding video data block |
摘要 |
In a method of video data compression a video frame in a sequence of frames is divided into a number of macroblocks, a particular macroblock being adjacent to a number of previously coded macroblocks including both intra-coded and inter-coded macroblocks. The method includes selecting either a full prediction or limited prediction type in encoding the particular macroblock to provide a corresponding data bit stream, full prediction using both adjacent inter-coded and intra-coded macroblocks, and limited prediction using intra-coded macroblocks only. A signal is provided along with the bit stream to indicate the selected prediction type to a decoder disposed to recover data from the bit stream. The prediction type may be either signaled explicitly, such as by providing a code word in the bit stream, or may be inferred implicitly by selected values or levels of a coding variable.
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申请公布号 |
US6907071(B2) |
申请公布日期 |
2005.06.14 |
申请号 |
US20020153763 |
申请日期 |
2002.05.21 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
FROEJDH PER;SJOEBERG RICKARD;EINARSSON TORBJOERN |
分类号 |
H04N7/32;G06T9/00;H04N7/26;H04N7/34;H04N7/50;(IPC1-7):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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