| 摘要 |
PURPOSE:To recognize a face at a high speed and identify an individual with high precision by calculating differences between frames of an input image signal and detecting the positons of the eyes and mouth in the face, and performing recognition. CONSTITUTION:While face information on a person is inputted from an image input device 2, an interframe difference detection part 16 detects differences between frames. A voice synthesizing part 10 questions the person in front of a speaker terminal device 14, and the person operates the keyboard of the terminal device 14 while answering to questions. Position coordinates of violent motion parts of the person, i.e. eyes and mouth are detected by the interframe difference detection part 16. The positions of the nose and eyebrows are detected by using the knowledge of face information on the basis of the positions of the mouth and eyes. Then, the face is collated by using the triangle consisting of the positions of the mouth and both eyes and information on the positions of the eyebrows and noise.
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