Method for detecting a human face and an apparatus of the same
First Claim
Patent Images
1. A detecting method for detecting a human face from an input image, comprising:
- detecting at least first and second candidate eye areas for first and second eyes and a plurality of candidate interval areas for an interval between the first and second eyes based on luminance characteristics of the input image;
determining whether a candidate interval area among the plurality of candidate interval areas is between the first and second candidate eye areas;
designating the candidate interval area as the interval between the first and second eyes when the candidate interval area is determined to be between the first and second candidate eye areas; and
determining a face area based on the designated interval between the first and second eyes.
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Abstract
In an apparatus for detecting a human face from an input image, candidate areas for an eye and candidate areas for an interval between eyes are detected from the image, an area of the interval between eyes is determined from the positional relationship between the candidate areas for an eye and candidate area for an interval between eyes, and a face area is determined so that the face area includes the area of the interval between eyes.
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Citations
19 Claims
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1. A detecting method for detecting a human face from an input image, comprising:
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detecting at least first and second candidate eye areas for first and second eyes and a plurality of candidate interval areas for an interval between the first and second eyes based on luminance characteristics of the input image;
determining whether a candidate interval area among the plurality of candidate interval areas is between the first and second candidate eye areas;
designating the candidate interval area as the interval between the first and second eyes when the candidate interval area is determined to be between the first and second candidate eye areas; and
determining a face area based on the designated interval between the first and second eyes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A detecting method for detecting a human face from an input image, comprising:
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detecting a plurality of candidate eye areas for first and second eyes based on luminance characteristics of the input image;
detecting an interval between the first and second eyes;
examining one of luminance characteristics and shape characteristics of the candidate eye areas for the first and second eyes to determine a position of a right eye and a position of a left eye; and
determining a face area including the position of the right eye and the position of the left eye.
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15. A detecting apparatus for detecting a human face from an input image, comprising:
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an eye candidate detecting section configured to detect an interval between a plurality of candidate eye areas for first and second eyes based on a plurality of luminance characteristics of the input image;
an interval detecting section configured to detect an interval between the first and second eyes;
an eye determining section configured to examine one of luminance characteristics and shape characteristics of the candidate eye areas for the first and second eyes detected by said eye candidate detecting section to determine a position of a right eye and a position of a left eye; and
a face determining section configured to determine a face area including the position of the right eye and the position of the left eye determined by said eye determining section.
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16. A computer readable storage medium storing a detecting program for detecting a human face from an image, said detecting program configured to cause a computer to perform at least:
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detecting at least first and second candidate eye areas for first and second eyes and a plurality of candidate interval areas for an interval between the first and second eyes based on luminance characteristics of the input image;
determining whether a candidate interval area among the plurality of candidate interval areas is between the first and second candidate eye areas;
designating the candidate interval area as the interval between the first and second eyes when the candidate interval area is determined to be between the first and second candidate eye areas; and
determining a face area based on the designated interval between the first and second eyes.
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17. A computer readable storage medium storing a detecting program for detecting a human face from an image, said program configured to cause a computer to perform at least:
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detecting a plurality of candidate eye areas for first and second eyes based on a plurality of luminance characteristics of the image;
detecting an interval between the first and second eyes;
examining one of luminance characteristics and shape characteristics of the candidate areas for both eyes to determine a position of a right eye and a position of a left eye; and
determining a face area including the position of the right eye and the position of the left eye.
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18. A computer readable storage medium storing a motion picture retrieval program, said motion picture retrieval program configured to cause a computer to perform at least:
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detecting at least first and second candidate eye areas for first and second eyes and a plurality of candidate interval areas for an interval between the first and second eyes based on a plurality of luminance characteristics of a frame picture of a motion picture;
determining whether a candidate interval area among the plurality of candidate interval areas is between the first and second candidate eye areas;
designating the candidate interval area as the interval between the first and second eyes when the candidate interval area is determined to be between the first and second candidate eye areas;
determining a face area based on the designated interval between the first and second eyes;
storing information of a face in the face area; and
retrieving a motion picture using the information of the face.
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19. A computer readable storage medium storing a face identifying program, said program configured to cause a computer to perform at least:
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detecting at least first and second candidate eye areas for first and second eyes and a plurality of candidate interval areas for an interval between the first and second eyes based on a plurality of luminance characteristics of an image;
determining whether a candidate interval area among the plurality of candidate interval areas is between the first and second candidate eye areas;
designating the candidate interval area as the interval between the first and second eyes when the candidate interval area is determined to be between the first and second candidate eye areas;
determining a face area based on the designated interval between the first and second eyes; and
identifying a face using a feature vector of the face extracted from the face area compared with a plurality of feature vectors of faces stored in a database.
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Specification