发明名称 |
A BLOCK MOTION ESTIMATION METHOD |
摘要 |
<p>A block motion estimation method for estimating a motion vector on the basis of a position of a frame block in a current picture compared to a position of said frame block in a reference picture, by determining, at a plurality of search points of said current picture, a variation of the current picture as compared to the reference picture, said search points defining a polygonal search area along the perimeter thereof, said search area including some reference search points and inner search points, the method comprising the following steps: sub-dividing a plurality of n-tuples each n-tuple comprising n of said search points, wherein n is any interger from 1 (normally 2, 3 or more); determining a selected n-tuple of said sub-plurality of n-tuples having the smallest sum of distortions; and comparing the distortion at said central reference search point and at least one inner search point adjacent to the selected n-tuple such as to determine that search point thereof having the smallest distortion which is used in the estimation process</p> |
申请公布号 |
WO02098137(A1) |
申请公布日期 |
2002.12.05 |
申请号 |
WO2001SG00112 |
申请日期 |
2001.06.01 |
申请人 |
NANYANG TECHNOLOGICAL UNIVERSITY;ZHU, CE;CHAU, LAP, PUI;LIN, XIAO |
发明人 |
ZHU, CE;CHAU, LAP, PUI;LIN, XIAO |
分类号 |
H04N7/26;(IPC1-7):H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|