| 摘要 |
PROBLEM TO BE SOLVED: To precisely extract an area corresponding to the face of a human through an easy process according to the internal structure of the face. SOLUTION: A face candidate area considered to correspond to the face of the human is extracted from an image to be processed, the face candidate area is divided into a specific number of blocks (division patterns are shown by broken lines in (A)), and integral values of edge intensity in the top-bottom direction of the image are found, block by block. The feature quantities found for each block are collated with patterns for matching (cf. (B)) found by dividing the face area actually corresponding to the face of the human according to the division patterns and calculating edge intensity integral values for each block to evaluate the accuracy of the face candidate area as an area (face area) corresponding to the face of the human. |
