A motion compensation interpolation method for H.264 decoder |
Title: |
A motion compensation interpolation method for H.264 decoder |
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Application Number: |
200610144288 |
Application Date: |
2006/12/01 |
Announcement Date: |
2007/05/16 |
Pub. Date: |
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Publication Number: |
1964493 |
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 7/26, H04N 9/77 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Yang Huazhong, Yu Yao, Luo Rong |
Key Words: |
H.264 decoder, motion, compensation, interpolation |
Abstract: |
The related motion compensation interpolation technology for video decoding circuit comprises: applying semi-pixel interpolation filters of same group to form the values of the complete four pixel points and five semi-pixel points on bright or color part, then, with both 4/9 and 2/4 modules, using the least 2-bit or 3-bit of target pixel point motion vector to decide the pixel point position and find out two nearby points, calculating arithmetic mean value as target value; for color pixel part, feeding back pixel values of first selected four points to the vertical semi-pixel filter to calculate five pixel points in small square to form three-horizontal three-vertical form with four vertexes. This invention can reduce chip area and cost efficiently. |
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Priority: |
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PCT: |
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