Patent ID: 8570396
Filing Date: 2013-10-29
Classification: G06F,G09G,H04N

Abstract:
1. A method for detecting local motion between a reference image and a plurality of comparison images, comprising: defining a number of luma thresholds that determine a group of reference image luma value ranges in which a particular comparison image is selected, the number corresponding to the number of comparison images; defining a difference threshold function that sets threshold values according to luma values of the reference image; for each particular comparison image, producing an intermediate detection map denoting local motion between the reference image and the particular comparison image by applying the threshold values on a difference image formed by comparing the reference image and the particular comparison image, wherein the intermediate detection map is based on pixels within a reference image luma value range that corresponds to the particular comparison image; and outputting a final detection map that is a union of the intermediate detection maps.