发明名称 |
Method and apparatus for determining true motion vectors for selected pixels |
摘要 |
<p>An apparatus determines true motion vectors between a current and its previous frames for feature points selected from the previous frame wherein a selected feature point is surrounded by its neighboring four feature points to form a previous rhombus having a set of four triangles based on the selected feature point. A motion vector displacement generator gives a predetermined N number of displacements to an initial motion vector for its corresponding feature points to thereby produce a subset of N candidate motion vectors and a motion prediction block provides a current rhombus corresponding to the previous rhombus by the initial motion vectors, wherein the current rhombus has N sets of four triangles due to the N candidate motion vectors. A true motion vector is selected from the subset of N candidate motion vectors, which entails a minimum error value between the predicted pixel values for each triangle set in the current rhombus and their respective corresponding current pixel values from the previous frame.</p> |
申请公布号 |
EP0734178(A3) |
申请公布日期 |
1998.05.27 |
申请号 |
EP19950107989 |
申请日期 |
1995.05.24 |
申请人 |
DAEWOO ELECTRONICS CO., LTD |
发明人 |
LEE, MIN-SUB |
分类号 |
H04N19/50;G06T7/20;H04N5/14;H04N19/105;H04N19/134;H04N19/136;H04N19/139;H04N19/167;H04N19/172;H04N19/18;H04N19/182;H04N19/196;H04N19/20;H04N19/423;H04N19/503;H04N19/51;H04N19/513;H04N19/533;H04N19/537;H04N19/54;H04N19/61;H04N19/625;H04N19/91;H04N19/93;(IPC1-7):H04N7/36 |
主分类号 |
H04N19/50 |
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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