发明名称 |
VIDEO ENCODING USING PREVIOUSLY CALCULATED MOTION INFORMATION |
摘要 |
A video encoder uses previously calculated motion information for inter frame coding to achieve faster computation speed for video compression. In a multi bit rate application, motion information produced by motion estimation for inter frame coding of a compressed video bit stream at one bit rate is passed on to a subsequent encoding of the video at a lower bit rate. The video encoder chooses to use the previously calculated motion information for inter frame coding at the lower bit rate if the video resolution is unchanged. A multi core motion information pre-calculation produces motion information prior to encoding by dividing motion estimation of each inter frame to separate CPU cores. |
申请公布号 |
EP2382785(A4) |
申请公布日期 |
2012.12.26 |
申请号 |
EP20100736180 |
申请日期 |
2010.01.12 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
GU, CHUANG;CHAN, CHUN-WEI;CHEN, WILLIAM;SPEARS, STACEY;HOLCOMB, THOMAS, W. |
分类号 |
H04N7/24;H04N7/12;H04N7/26 |
主分类号 |
H04N7/24 |
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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