Patent ID: 7436999
Filing Date: 2008-10-14
Classification: G06K,G06T

Abstract:
1. A data analysis device characterized by comprising: difference calculation means for, with respect to an image, carrying out a calculation of calculating a difference between intensity values at an arbitrary point in said image and a point located in the vicinity of said arbitrary point in a first direction as a first intensity difference of said arbitrary point and of calculating a difference between intensity values at said arbitrary point and a point located in the vicinity of said arbitrary point in a second direction different from said first direction as a second intensity difference of said arbitrary point, said difference calculation means carrying out said calculation with respect to each of a plurality of points in said image, and frequency distribution generation means for allocating a vector comprising said first intensity difference and said second intensity difference obtained by said difference calculation means for each of the plurality of points in said image to a single region of a plurality of regions divided by a predetermined region division method and generating a frequency distribution of said plurality of regions by using the number of vectors allocated to each of said plurality of regions as frequency of the corresponding region.