| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a video data processing method for accurate digital image stabilization simultaneous with distinguishing movement feature points occurring because of camera movement or global movement to obtain motion vectors of the feature points. <P>SOLUTION: A method of digital image stabilization includes a feature point sorting algorithm for selecting optimal feature points, a computationally efficient tile-vector based hierarchical block-matching search algorithm for deriving motion vectors of the selected feature points, and a feature point motion vector grouping/comparison algorithm for grouping the selected feature points based on magnitude ratio criteria and angle difference criteria. <P>COPYRIGHT: (C)2012,JPO&INPIT |
