Patent ID: 6625304
Filing Date: 2003-09-23
Classification: G06T

Abstract:
A method of detecting displacement of a first block of pixels from a first to a second image of a scene, the method comprisingidentifying the first block from the first image; selecting a first region from a set of first regions in the second image, so that a difference between an image content of the first region and of the first block is minimal among the set of first regions; identifying a second block from the second image, the second block containing at least part of the selected first region, selecting a second region from a set of second regions in the first image, so that a difference between an image content of the second region and of the second block is minimal among the set of second regions; comparing a first displacement between the first block and the selected first region with a second displacement between the second block and the selecting second region; using said first displacement for further processing only if there is substantially no difference between the first and second displacement.