发明名称 |
Advanced bi-directional predictive coding of interlaced video |
摘要 |
For interlaced B-fields or interlaced B-frames, forward motion vectors are predicted by an encoder/decoder using forward motion vectors from a forward motion vector buffer, and backward motion vectors are predicted using backward motion vectors from a backward motion vector buffer. The resulting motion vectors are added to the corresponding buffer. Holes in motion vector buffers can be filled in with estimated motion vector values. An encoder/decoder switches prediction modes between fields in a field-coded macroblock of an interlaced B-frame. For interlaced B-frames and interlaced B-fields, an encoder/decoder computes direct mode motion vectors. For interlaced B-fields or interlaced B-frames, an encoder/decoder uses 4MV coding. An encoder/decoder uses "self-referencing" B-frames. An encoder sends binary information indicating whether a prediction mode is forward or not-forward for one or more macroblocks in an interfaced B-field. An encoder/decoder uses intra-coded B-fields ["BI-fields"]. |
申请公布号 |
EP2285114(A2) |
申请公布日期 |
2011.02.16 |
申请号 |
EP20100014884 |
申请日期 |
2004.09.03 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
MUKERJEE, KUNAL;HOLCOMB, THOMAS W. |
分类号 |
H04N19/112;H04N19/577;G06K9/36;G06K9/46;H03M7/40;H03M7/46;H04N;H04N7/12;H04N19/52;H04N19/61 |
主分类号 |
H04N19/112 |
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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