Patent ID: 9053384
Filing Date: 2015-06-09
Classification: G06K

Abstract:
1. A feature extracting device comprising: a binary pattern generating section that generates a local binary pattern for each of at least a plurality of first pixels in an image, the local binary pattern being represented by a set of bit values indicating whether differences in pixel values between a first pixel of the plurality of first pixels and surrounding second pixels are each equal to or greater than a predetermined threshold, the second pixels being at predetermined positions relative to the first pixel; a weight generating section that determines a weight of each of the generated local binary patterns depending on the differences in pixel values between the first pixel and the second pixels; and a histogram generating section that applies each determined weight to the corresponding local binary pattern to generate a histogram indicating a distribution of the local binary patterns generated from the image, wherein each local binary pattern is a code having digital values arranged in a predetermined order, the digital values indicating whether each of the differences between the first pixel and the second pixels are equal to or greater than the predetermined threshold.