Method, apparatus, and program for human figure region extraction
First Claim
1. A human figure region extraction method for extracting a human figure region in a single image, the method comprising the steps of:
- detecting a face or facial part in the image;
determining an estimated region which is estimated to include the human figure region, based on position information of the detected face or facial part;
extracting the human figure region in the estimated region;
judging whether at least a portion of the extracted human figure region exists in an outline periphery region in the estimated region;
extending and updating the estimated region so as to include a near outer region located near the human figure region in the outline periphery region and outside the estimated region, in the case where at least a portion of the human figure region has been judged to exist; and
extracting the human figure region in the extended and updated estimated region.
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Abstract
Upon extraction of a human figure region in an image, a face or facial part is detected in the image, and an estimated region which is estimated to include the human figure region is determined from position information of the detected face or facial part. The human figure region is extracted in the estimated region. Judgment is made as to whether at least a portion of the human figure region exists in an outline periphery region of the estimated region, and the estimated region is extended and updated so as to include a near outer region near the human figure region in the outline periphery region and outside the estimated region, in the case where a result of the judgment is affirmative. The human figure region is extracted in the extended and updated estimated region.
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Citations
9 Claims
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1. A human figure region extraction method for extracting a human figure region in a single image, the method comprising the steps of:
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detecting a face or facial part in the image; determining an estimated region which is estimated to include the human figure region, based on position information of the detected face or facial part; extracting the human figure region in the estimated region; judging whether at least a portion of the extracted human figure region exists in an outline periphery region in the estimated region; extending and updating the estimated region so as to include a near outer region located near the human figure region in the outline periphery region and outside the estimated region, in the case where at least a portion of the human figure region has been judged to exist; and extracting the human figure region in the extended and updated estimated region. - View Dependent Claims (2)
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3. A human figure region extraction apparatus for extracting a human figure region in an image, the apparatus comprising:
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face detection means for detecting a face or facial part in the image; estimated region determination means for determining an estimated region which is estimated to include the human figure region, based on position information of the detected face or facial part; human figure region extraction means for extracting the human figure region in the estimated region; and judgment means for judging whether at least a portion of the extracted human figure region exists in an outline periphery region in the estimated region, wherein, in the case where the judgment means has judged that at least a portion of the human figure region exists, the estimated region determination means extends and updates the estimated region so as to include a near outer region located near the human figure region in the outline periphery region and outside the estimated region and the human figure region extraction means extracts the human figure region in the extended and updated estimated region. - View Dependent Claims (4, 5, 6, 7, 8)
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9. A non-transitory computer-readable recording medium storing a program for extracting a human figure region in an image, the program causing a computer to execute the procedures of:
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detecting a face or facial part in the image; determining an estimated region which is estimated to include the human figure region, based on position information of the detected face or facial part; extracting the human figure region in the estimated region; judging whether at least a portion of the extracted human figure region exists in an outline periphery region in the estimated region; extending and updating the estimated region so as to include a near outer region located near the human figure region in the outline periphery region and outside the estimated region, in the case where at least a portion of the human figure region has been judged to exist; and extracting the human figure region in the extended and updated estimated region.
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Specification