Apparatus for and method of constructing multi-view face database, and apparatus for and method of generating multi-view face descriptor
First Claim
1. An apparatus for generating a multi-view face descriptor comprising:
- a multi-view face database which stores sets of training face images and sets of test face images, each set including a mosaic view of a single identity;
a basis matrix generator which generates a basis matrix of the training face images shown from respective viewpoints searched from the multi-view face database;
a feature extractor which extracts feature vectors of a test face image shown from each viewpoint using the basis matrix of the training face images searched from the multi-view face database;
a to-be-registered view selector which searches the test face images using the feature vectors extracted by the feature extractor and selects a plurality of the viewpoints as registered viewpoints according to the search results; and
a face descriptor generator which generates a multi-view face descriptor by synthesizing face descriptors having the plurality of selected viewpoints.
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Abstract
An apparatus for generating a multi-view face descriptor includes a multi-view face database storing sets of training face images and sets of test face images, each set including a mosaic view of a single identity; a basis matrix generator generating a basis matrix of the training face images shown from respective viewpoints searched from the multi-view face database; a feature extractor extracting feature vectors of a test face image shown from each viewpoint using the basis matrix of the training face images searched from the multi-view face database; a to-be-registered view selector searching the test face images using the feature vectors extracted by the feature extractor and selecting a plurality of viewpoints as registered viewpoints according to the search results; and a face descriptor generator generating a multi-view face descriptor by synthesizing face descriptors having the plurality of selected viewpoints.
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Citations
22 Claims
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1. An apparatus for generating a multi-view face descriptor comprising:
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a multi-view face database which stores sets of training face images and sets of test face images, each set including a mosaic view of a single identity; a basis matrix generator which generates a basis matrix of the training face images shown from respective viewpoints searched from the multi-view face database; a feature extractor which extracts feature vectors of a test face image shown from each viewpoint using the basis matrix of the training face images searched from the multi-view face database; a to-be-registered view selector which searches the test face images using the feature vectors extracted by the feature extractor and selects a plurality of the viewpoints as registered viewpoints according to the search results; and a face descriptor generator which generates a multi-view face descriptor by synthesizing face descriptors having the plurality of selected viewpoints. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of generating a multi-view face descriptor comprising:
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providing a multi-view face database storing sets of training face images and sets of test face images, each set including a mosaic view of a single identity; generating a basis matrix of the training face images shown from respective viewpoints searched from the multi-view face database; extracting feature vectors of a test face image shown from each viewpoint using the basis matrix of the training face images searched from the multi-view face database; and searching, using at least one processing device, the test face images using the feature vectors extracted by the feature extractor, selecting a plurality of viewpoints as registered viewpoints according to the search results and generating a multi-view face descriptor by synthesizing face descriptors having the plurality of selected viewpoints. - View Dependent Claims (10, 11, 12, 13)
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14. At least one computer readable recording medium having recorded thereon a computer readable program to control at least one processing device to perform a method of generating a multi-view face descriptor performed by one or more computers, the method comprising:
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providing a multi-view face database storing sets of training face images and sets of test face images, each set including a mosaic view of a single identity; generating a basis matrix of the training face images shown from respective viewpoints searched from the multi-view face database; extracting feature vectors of a test face image shown from each viewpoint using the basis matrix of the training face images searched from the multi-view face database; and searching the test face images using the feature vectors extracted by the feature extractor, selecting a plurality of viewpoints as registered viewpoints according to the search results and generating a multi-view face descriptor by synthesizing face descriptors having the plurality of selected viewpoints.
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15. An apparatus for generating a multi-view descriptor relative to a selected view using a multi-view database which stores sets of training images and sets of test images, each set including a mosaic view of a single identity, comprising:
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a basis matrix generator which generates a basis matrix of the training images shown from respective viewpoints searched from the multi-view database; a feature extractor which extracts feature vectors of a test image shown from each viewpoint using the basis matrix of the training images; a view selector which searches the test images using the feature vectors extracted by the feature extractor and selects ones of the viewpoints as registered viewpoints according to the search results; and a descriptor generator which generates a multi-view descriptor by synthesizing descriptors having the plurality of selected viewpoints. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification