Ethnicity Classification Using Multiple Features
First Claim
Patent Images
1. A method for automatic ethnicity classification of a frontal face image comprising:
- aligning the frontal face image to a template;
normalizing the aligned frontal face image;
generating a block intensity and texture feature (BITF) from the normalized frontal face image; and
using a BITF classifier ensemble to classify the frontal face image into one of four ethnicity classifications.
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Abstract
Frontal face images are classified into four categories such as Asian, Caucasian, African and others. A new representation of face appearance, named BITF (Block Intensity and Texture Feature), is employed as the discrimination feature. An ensemble of three component classifiers, each trained with a different number of BITF features as inputs, is designed to achieve a reliable classification. Further reliability is obtained by taking into consideration other secondary features to boost the classification performance.
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Citations
20 Claims
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1. A method for automatic ethnicity classification of a frontal face image comprising:
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aligning the frontal face image to a template; normalizing the aligned frontal face image; generating a block intensity and texture feature (BITF) from the normalized frontal face image; and using a BITF classifier ensemble to classify the frontal face image into one of four ethnicity classifications. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. One or more computer-readable media having computer-readable instructions thereon, which, when executed by a processor, implement a method for automatically classifying an ethnicity of a front facial image, comprising:
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aligning the frontal face image to a template; normalizing the aligned frontal face image; generating a block intensity and texture feature (BITF) from the normalized frontal face image; and using a BITF classifier ensemble to classify the frontal face image into one of four ethnicity classifications. - View Dependent Claims (12, 13, 14, 15)
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16. A device for automatic ethnicity classification of a frontal face image comprising:
a processor that; aligns the frontal face image to a template; normalizes the aligned frontal face image; generates a block intensity and texture feature (BITF) from the normalized frontal face image; and uses a BITF classifier ensemble to classify the frontal face image into one of four ethnicity classifications. - View Dependent Claims (17, 18, 19, 20)
Specification