Background-based motion estimation coding method |
Title： |
| Background-based motion estimation coding method |
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Application Number： |
200710063053 |
Application Date： |
2007/01/26 |
Announcement Date： |
2007/08/01 |
Pub. Date： |
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Publication Number： |
101009835 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04N 7/26H04N 7/32 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Dai Qionghai, Yu Zhitao, Shang Minghai |
Key Words： |
Background, motion, estimation, coding method |
Abstract： |
The related motion estimation coding method based on background in digital video code compression technology comprises: initiating the background frame, reading in a frame image to decide its code type, completing coding to current frame by traditional frame inner coding method if the image is I frame or reading in a macro block if the image id P frame, then coding the block with traditional frame inner coding method if the block is I type, or coding as both traditional reference frame motion estimation and background frame reference motion estimation if the block is P type, and updating current background frame during coding to generate current background frame. This invention improves coding efficiency, special useful to video monitor and conference. |
Claim： |
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Priority： |
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PCT： |
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