Patent ID: 8885715
Filing Date: 2014-11-11
Classification: H04N

Abstract:
1. An image processing apparatus, comprising: local motion vector detection means for setting a plurality of reference blocks having a size equal to that of a target block of a predetermined size set in a target screen image and including a plurality of pixels 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 each of 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 maximum value of the correlation value is calculated from the target block; global motion calculation means for calculating a global motion representative of deformation applied to the entire image; global motion vector calculation means for calculating a global motion vector of the target block using the global motion; evaluation means for comparing the correlation value of the target block with the reference block which corresponds to the local motion vector and a correlation value of the target block with a reference block which corresponds to the global motion vector with each other and carrying out evaluation regarding whether or not the target block is a background still picture portion based on a result of the comparison; motion compensation image production means for producing an image of a motion compensation block from an image of a reference block using the local motion vector or the global motion vector; addition ratio calculation means for calculating an addition ratio in a unit of a block based on the evaluation regarding whether or not the target block is the background still picture portion such that the addition ratio is lowered based on a degree to which the target block being evaluated is not the background still picture portion; and addition means for adding the image of the motion compensation block to an image of the target block according to the addition ratio.