Face detection method based on skin color and pattern match
First Claim
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1. A face detection method comprising:
- detecting skin color pixels using color information of an image;
calculating a proportion of the skin color pixels occupying each predetermined sub-window of the image;
selecting ones of the predetermined sub-windows as face candidates when the proportions of the skin color pixels in the ones of the sub-windows are at least equal to a threshold value; and
determining whether any of the face candidates is a face and storing a location of the face.
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Abstract
A face detection method based on a skin color and a pattern match. A face detection method includes: detecting skin color pixels using color information of an image; calculating a proportion of the skin color pixels occupying each predetermined sub-window of the image; selecting ones of the predetermined sub-windows as face candidates when the proportions of the skin color pixels in the ones of the sub-windows are at least equal to a threshold value; and determining whether any of the face candidates is a face and storing a location of the face.
179 Citations
19 Claims
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1. A face detection method comprising:
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detecting skin color pixels using color information of an image;
calculating a proportion of the skin color pixels occupying each predetermined sub-window of the image;
selecting ones of the predetermined sub-windows as face candidates when the proportions of the skin color pixels in the ones of the sub-windows are at least equal to a threshold value; and
determining whether any of the face candidates is a face and storing a location of the face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 16)
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9. A face detection method in a current frame of a moving image, comprising:
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determining whether there is motion in the current frame when a face was detected in a previous frame;
detecting a face in a tracking window in the current frame determined to be centered around a location of the face detected in the previous frame when no motion is detected; and
storing the face location of the detected face in the current frame. - View Dependent Claims (10, 11, 12, 13, 14, 15, 17)
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18. A computer-readable storage medium encoded with processing instructions for causing a processor to execute a method of detecting a face, the method comprising:
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detecting skin color pixels using color information of an image;
calculating a proportion of the skin color pixels occupying each predetermined sub-window of the image;
selecting ones of the predetermined sub-windows as face candidate when the proportion of the skin color pixels in the ones of the sub-windows are at least equal to a threshold value; and
determining whether any of the face candidate is a face and storing a location of the face.
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19. A computer-readable storage medium encoded with processing instructions for causing a processor to execute a face detection method in a current frame among consecutive image frames, comprising:
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determining whether there is motion in the current frame when a face was detected in a previous frame;
detecting a face in a tracking window determined to be centered around a location of the face detected in the previous frame when no motion is detected; and
storing a location of the detected face in the current frame.
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Specification