Motion estimation and compensation device with mot

专利名称：Motion estimation and compensation device

with motion vector correction based onvertical component values

发明人：Otsuka, Tatsushi,Tahira, Takahiko,Yamori,

Akihiro

申请号：EP04257850.0申请日：20041216公开号：EP1622387A2公开日：20060201

专利附图：

摘要：There is provided a motion estimation and compensation device 10 that avoids

discrepancies in chrominance components which could be introduced in the process ofmotion vector estimation. The device 10 has a motion vector estimator 11 for findingmotion vectors in given interlace-scanning chrominance-subsampled video signals. Theestimator 11 compares each candidate block B0 to B3 in a reference picture with a targetblock B in an original picture by using a sum of absolute differences (SAD) in luminance assimilarity metric, chooses a best matching candidate block that minimizes the SAD, anddetermines its displacement relative to the target block. In this process, the estimator 11gives the SAD of each candidate block B0 to B3 an offset determined from the verticalcomponent of a corresponding motion vector, so as to avoid chrominance discrepancies.A motion compensator 12 then produces a predicted picture using such motion vectorsand calculates prediction error by subtracting the predicted picture from the originalpicture.

申请人：FUJITSU LIMITED

地址：1-1, Kamikodanaka 4-chome, Nakahara-ku Kawasaki-shi, Kanagawa 211-8588 JP

国籍：JP

代理机构：Stebbing, Timothy Charles

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