Patent ID: 8351511
Filing Date: 2013-01-08
Classification: G06T,H04N

Abstract:
1. An image processing apparatus, comprising: local motion vector detection means for dividing a target screen image into a plurality of target blocks, setting, for each of the target blocks, a plurality of reference blocks having a size equal to that of the target blocks in a search range set on a reference screen image different from the target screen image, determining a correlation value between the target block and the reference blocks and detecting a local motion vector of the target block as a displacement of that one of the reference blocks with regard to which the highest value of the correlation value is calculated from the target block; global motion vector acquisition means for acquiring a global motion vector for each of the target blocks determined from a global motion representative of deformation applied to the entire target screen image; index value calculation means for calculating, for each of the target blocks, an index value representative of a coincidence degree of the local motion vector detected by said local motion vector detection means and the global motion vector acquired by said global motion vector acquisition means; motion compensation means for producing a motion compensation image wherein the reference blocks are motion-compensated using the local motion vectors detected by said local motion vector detection means; addition ratio calculation means for calculating an addition ratio between the image of each of the target blocks and the corresponding motion compensation image based on the corresponding index value calculated by said index value calculation means, wherein the addition ratio represents a ratio of the corresponding motion compensation image to be added to the image of the target block, and the addition ratio for a target block representing a moving image pickup object portion is set lower than an addition ratio for a target block representing a stationary picture portion based on the corresponding index value calculated by the index value calculation means; and addition means for adding the images of the target blocks and the corresponding motion compensation images with the respective addition ratios calculated by said addition ratio calculation means.