发明名称 |
MOVEMENT ESTIMATION PROCESS AND DEVICE IN A PICTURE SEQUENCE |
摘要 |
<p>Method of and device for estimating motion in a picture sequence, for use in compression of information to be transmitted or registered are disclosed. The method consists of: preserving the preceding picture with respect to the current picture; defining tree groups for the elements classified in fixed elements, moving elements and exposed elements, in which groups the elements are classified with a delay of L elements according to scanning of the picture; constructing a classification tree whose 3L branches correspond to the sequence of possible groups for the L successive elements of the picture sequence; associating with each branch, a displacement vector representative of the possible displacement of the element with respect to the picture or to the preceding line and, a cumulated distortion representative of the cumulative sum of the classification errors of the preceding elements; in accordance with this procedure relating to L elements, taking a decision concerning the group and concerning the vector of the element situated L elements earlier.</p> |
申请公布号 |
EP0224957(B1) |
申请公布日期 |
1990.03.07 |
申请号 |
EP19860202058 |
申请日期 |
1986.11.20 |
申请人 |
LABORATOIRES D'ELECTRONIQUE PHILIPS;N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
HAGHIRI, MOHAMMAD REZAOSOCIéTé CIVILE S.P.I.D. |
分类号 |
H04N7/18;G06T7/20;H04N5/14;H04N7/26 |
主分类号 |
H04N7/18 |
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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