Patent ID: 9020270
Filing Date: 2015-04-28
Classification: G06K,G06T

Abstract:
1. An image processing device configured to detect a salient region from an image, comprising: a pixel small-region image generating unit that generates a pixel small-region image using, as a unit, a pixel small region made of pixels adjacent to one another and whose luminance values or chromaticity are similar, from the image; a prior probability calculator that calculates prior probability of likelihood of the salient region for each of the pixels of the image; a region generating unit that generates a salient-region-containing region having high possibility of containing a salient region on the basis of a corner point extracted from the image; a likelihood calculator that calculates likelihood of the salient region, for each of pixels of the image so that likelihood of the salient region is higher for a pixel having the same luminance value or chromaticity as that of larger number of pixels included in the pixel small region; and a salient region detector that calculates posterior probability of likelihood of the salient region by using the prior probability and likelihood of the salient region, wherein the prior probability calculator increases the prior probability of each of pixels constructing a pixel small region included in the pixel small-region image and having larger color distance from an adjacent pixel small region.