Face-recognition using half-face images
First Claim
1. A face recognition system comprising:
- a face-splitter that is configured to extract one or two half-face images from a face image, and a face-composer, operably coupled to the face-splitter, that is configured to provide one or more comparison images to a face-comparator, based on at least one of the one or two half-face images.
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Accused Products
Abstract
Left and right half-face images are processed as independent components in a face-recognition algorithm. To provide compatibility with full-face image recognition systems, mirror-images of the half-face images are used to create full-face images corresponding to each of the left and right half-face images. Each of the created full-face images is compared to a reference full-face image, using conventional face-recognition algorithms. By comparing each of the left-based image and right-based image, the system overcomes the recognition problems that are caused by directional or non-uniform illumination. Alternatively, a composite full-face image can be created based on a blending of the characteristics of each of the left and right half-face images, thereby filtering the illumination variations.
64 Citations
19 Claims
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1. A face recognition system comprising:
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a face-splitter that is configured to extract one or two half-face images from a face image, and a face-composer, operably coupled to the face-splitter, that is configured to provide one or more comparison images to a face-comparator, based on at least one of the one or two half-face images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of preprocessing a face image for use in a face recognition system, the method comprising:
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extracting at least one half-face image from the face image, providing one or more comparison images to the face recognition system, based on the at least one half-face image. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A computer program that, when executed on a computer system, is configured to cause the computer system to:
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extract at least one half-face image from a face image, and provide at least one comparison image based on the at least one half-face image for comparison with one or more reference images. - View Dependent Claims (16, 17, 18, 19)
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Specification