A coding method based on selfadaptive hexagon search |
Title： |
| A coding method based on selfadaptive hexagon search |
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Application Number： |
200310113568 |
Application Date： |
2003/11/18 |
Announcement Date： |
2004/11/10 |
Pub. Date： |
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Publication Number： |
1545325 |
Announcement Number： |
1237818 |
Grant Date： |
2006-1-18 |
Granted Pub. Date： |
2006-1-18 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04N 7/32H04N 7/28H04N 7/40 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
He Yuwen, Zhang Jianning, Zhong Yuzhuo |
Key Words： |
coding method, selfadaptive, hexagon, search |
Abstract： |
The invention relates to a self-adapting hexagonal search based coding method, firstly determining the initial motion vector of a block in the current image; searching a reference image in a region to obtain integral pixels, taking the integral pixels as search center, making 1/2 pixel search and 1/4 pixel search, successively, finally obtaining pixels at 1/4 precision, taking a vector from 1/4 pixel to center of the current block as the current motion vector, and coding the current block by the motion vector. It assures coding quality and reducing coding operation quantity to a great extent, achieving the purpose to enhance coding speed. It is both used in H.264 international standard and able to be widely applied to international standards and noninternational standards for coding other video data. |
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| Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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