Face recognition apparatus, face recognition method, Gabor filter application apparatus, and computer program

Face recognition apparatus for recognizing an input face image based on one or more registration face images based on Gabor jets numerals calculated by Gabor filter to determine the similarity between the input face image with the registered face image, the Gabor filter is represented by using a Gabor filter and Gaussian window function definition on behalf of the sine and cosine functions for each of the predetermined frequency in response to the frequency response function value and a predetermined angle to each Gabor feature Gabor filter is calculated marker vector determined. Value of the filter window is calculated in advance based on the Gaussian function, and is stored in a data ROM in the filter window. For every angle response function value calculated in advance based on sine and cosine functions, the sine data and the cosine ROM and the data stored in the ROM. In the Gabor filtering process, determining the coefficients of the Gabor filter based on the value read from the ROM.