Patent ID: 8953688
Filing Date: 2015-02-10
Classification: G06T,H04N

Abstract:
1. A motion estimation method, comprising: providing first image data including a plurality of source blocks; providing second image data including a plurality of target blocks; block-matching a source block of the first image data with the plurality of target blocks of the second image data to determine a motion vector corresponding to a position of a target block of the plurality of target blocks that most accords with the source block; and applying contrast enhancement on only said source block and/or said target block to improve block-matching, by replacing a pixel intensity value within said source block and/or said target block with a new pixel intensity value, wherein the new pixel intensity value is determined based on wherein the predefined value is a factor that increases when the contrast of said source block and/or said target block decreases, and wherein said source block and/or said target block constitutes less than a whole image of the first image data and the second image data.