Patent ID: 8363906
Filing Date: 2013-01-29
Classification: G06K,G06T

Abstract:
1. A registration apparatus, comprising: a biometric image acquiring section that acquires a biometric image in a biological region; a converting section that converts the biometric image into linear component information that respectively indicates a quantity of each linear component of a plurality of linear components; an extracting section that extracts, from the linear component information, linear components related to parameter points at which curved lines, corresponding to the linear component information, overlap, a number of overlapping curved lines at each of the parameter points being larger than an extraction threshold value; a determining section that determines whether a number of the extracted linear components that are larger than the extraction threshold value is as much as a specified number; a threshold value change setting section that increases the extraction threshold value each time the determining section determines that the number of the extracted linear components is as much as the specified number and when the extraction threshold value does not fall within an allowable extraction threshold value range, such that the extracting section iteratively extracts the linear components based on the increased extraction threshold value; and a biometric information registration section that registers a piece of biometric information corresponding to the biometric image to a storing section in the case where the determining section determines that the number of the linear components is as much as the specified number and the increased extraction threshold value falls within the allowable extraction threshold value range.