发明名称 |
METHOD AND APPARATUS FOR GLOBAL-TO-LOCAL BLOCK MOTION ESTIMATION |
摘要 |
<p>Apparatus and a concomitant method for estimating motion vectors having as an input a first image frame and a second image frame, each containing a plurality of pixels representing an image. The apparatus comprises: a pyramid processor for decimating a search area within the first image frame to produce a reduced resolution search area and for decimating a block of pixels in the second image frame to produce a reduced resolution pixel block; global search system for performing a global search within the reduced resolution search area using the reduced resolution pixel block until the reduced resolution pixel block substantially matches a matching block of pixels in the reduced resolution search area; and subsystem for computing an estimated motion vector representing a distance between a location of the reduced resolution pixel block within the second image frame and a location of the matching block of pixels within the first image frame.</p> |
申请公布号 |
EP0779011(A4) |
申请公布日期 |
1999.08.11 |
申请号 |
EP19950931013 |
申请日期 |
1995.09.05 |
申请人 |
DAVID SARNOFF RESEARCH CENTER, INC. |
发明人 |
JU, CHI HONG, JOHN |
分类号 |
H04N7/32;H04N7/26;(IPC1-7):H04N7/28;H04N7/36 |
主分类号 |
H04N7/32 |
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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