Patent Document ID: 9160897
Application ID: 12137113
Patent Status: 1

Claim One:
1. A digital image stabilization method, comprising: acquiring a sequence of temporally proximate image frames; computing an estimated total camera motion between the image frames; determining a desired component of the estimated total camera motion including distinguishing an undesired component of the estimated total camera motion, and including characterizing vector values of motion between the image frames, including: determining at least first and second thresholds adapted to said image frames to generate a sign value range {−1, 0, +1}, including calculating said thresholds as percentages of a dynamic luminance range of the sequence; incrementing (+1) a counter for each pixel group having a summed luminance that is greater than a first threshold; decrementing (−1) said counter for each pixel group having a summed luminance that is less than a second threshold, wherein the counter is unchanged (0), neither incremented nor decremented, for each pixel group having a summed luminance between the first and second thresholds; determining final values of counts for the image frames by summing along rows and columns; and representing the vector values of the desired camera motion based on said final values of counts for the image frames; (d) generating a corrected image sequence including the desired component of the estimated total camera motion, and excluding the undesired component; and (e) rendering, storing, displaying, transmitting or transferring the corrected image sequence or a further processed version, or combinations thereof.