Patent ID: 7239721
Filing Date: 2007-07-03
Classification: G06T

Abstract:
1. A method of performing a hierarchical motion estimation for an array of image values obtained from a current image, the hierarchical motion estimation operation specifying a hierarchical progression of searches at different resolutions in a reference image, wherein the hierarchical progression starts from coarser resolutions to finer resolutions, wherein the method starts with an initial estimate of the motion of the current image, the method comprising: a) determining whether the initial estimate of the motion of the current image array between the current image and a reference image is acceptable; b) specifying a first value for a first resolution parameter for performing the hierarchical motion estimation operation when the initial estimate is not acceptable, said first resolution parameter specifying a starting resolution value in the hierarchical progression; c) specifying a second value for the first resolution parameter for performing the hierarchical motion estimation operation when the initial estimate is acceptable, wherein the second resolution value is different from the first resolution value; d) performing the hierarchical motion estimation operation based on the specified value for the first resolution parameter.