System and method for face recognition
First Claim
1. A method for recognizing faces of persons, comprising:
- training a system to recognize a facial component;
populating a first knowledge base with facial components and, for each facial component, the facial component'"'"'s body part classification, wherein the facial components in the first knowledge base include a first set of facial components extracted from facial identification training image data of a face of a first person at a first set of viewpoints;
determining a first set of body part classifications associated with the first set of facial components;
for each body part classification in the first set of body part classifications;
determining, from the first set of facial components, a subset of facial components that are associated with the body part classification, wherein the facial components in the subset represent a same body part classification of a same person at multiple viewpoints; and
determining a probability that a person class of the subset of facial components is the first person; and
determining a first body part classification in the first set of body part classifications that maximizes the probability.
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Abstract
A face recognition system includes a component learning/extraction module, component classifier training module, knowledge base for component classification (KBCC), component extraction module (CEM), object identification training module (OITM), knowledge base for face identification (KBFI), and object identification module (OIM). The CEM receives image data of faces at various viewpoints and extracts outputs of classification of the component data, using the results of classifier training of the component data, stored in the KBCC. The OITM receives the outputs of classification of the component data and determines indicator component for each person by Bayesian estimation so that posterior probability of a predetermined attention class is maximized under the outputs of classification of the component data at various viewpoints. The KBFI stores indicator components for the individuals. The OIM receives the outputs of classification of the component data and identifies faces using the indicator components stored in the KBFI.
42 Citations
22 Claims
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1. A method for recognizing faces of persons, comprising:
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training a system to recognize a facial component; populating a first knowledge base with facial components and, for each facial component, the facial component'"'"'s body part classification, wherein the facial components in the first knowledge base include a first set of facial components extracted from facial identification training image data of a face of a first person at a first set of viewpoints; determining a first set of body part classifications associated with the first set of facial components; for each body part classification in the first set of body part classifications; determining, from the first set of facial components, a subset of facial components that are associated with the body part classification, wherein the facial components in the subset represent a same body part classification of a same person at multiple viewpoints; and determining a probability that a person class of the subset of facial components is the first person; and determining a first body part classification in the first set of body part classifications that maximizes the probability. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for recognizing faces of persons, comprising:
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a training module configured to train a facial component recognition system to recognize a facial component; a population module configured to populate a first knowledge base with facial components and, for each facial component, the facial component'"'"'s body part classification, wherein the facial components in the first knowledge base include a first set of facial components extracted from facial identification training image data of a face of a first person at a first set of viewpoints; a computer readable storage medium storing an indicator component module configured to; determine a first set of body part classifications associated with the first set of facial components; for each body part classification in the first set of body part classifications; determine, from the first set of facial components, a subset of facial components that are associated with the body part classification, wherein the facial components in the subset represent a same body part classification of a same person at multiple viewpoints; and determine a probability that a person class of the subset of facial components is the first person; and determine a first body part classification in the first set of body part classifications that maximizes the probability; and a processor configured to execute the indicator component module stored by the computer readable storage medium. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification