Patent ID: 8542278
Filing Date: 2013-09-24
Classification: H04N

Abstract:
1. A shaking detection device performing matching processing and detecting an amount of shaking based on a standard image and a reference image differing in exposure conditions, comprising: a macro block dividing unit configured to divide each of the standard image and reference image into a plurality of macro blocks, a block extracting unit configured to extract a first block including one or more macro blocks each having a predetermined size from the standard image divided by the macro block dividing unit and extract a second block including one or more macro blocks each having a predetermined size from macro blocks of the reference image divided by the macro block dividing unit, a residual difference acquiring unit configured to acquire residual differences between the first block and the second block extracted by the block extracting unit and acquire a residual difference integral value for each of the macro blocks based on the acquired residual differences, a block selecting unit configured to select a predetermined number of macro blocks having small residual difference integral values acquired by the residual difference acquiring unit, and a shaking acquiring unit configured to acquire residual differences again at the residual difference acquiring unit for the macro blocks selected by the block selecting unit and define, as the amount of shaking, a value at a predetermined place order when arranging the residual difference integral values in order from a largest value or from a smallest value.