Patent ID: 7649549
Filing Date: 2010-01-19
Classification: G06T,H04N

Abstract:
1. A method of a digital signal processor for stabilizing a video sequence, comprising: (a) providing a low resolution version of an input picture; (b) segmenting said low resolution version into reliable motion estimation blocks and unreliable motion estimation blocks; (c) finding a single motion vector for the aggregation of said reliable motion estimation blocks; (d) finding a global motion vector for said input picture from said single motion vector by scaling and refining said single motion vector, wherein said scaling and refining includes a first scaling by a factor of 2 in both horizontal and vertical directions, a first single motion vector refinement by a local search, a second scaling by a factor of 2 in both horizontal and vertical directions, and second motion vector refinement by a second local search; (e) compensating for jitter motion in said input picture using said global motion vector.