Image processing device, image device, image processing method
First Claim
Patent Images
1. An image sensing apparatus comprising:
- a sensing unit constructed to successively sense images;
a region determination unit constructed to determine a face region in each of the successively sensed images;
an extraction unit constructed to extract predetermined features representing parts of a face from the determined face region in each of the successively sensed images;
a score derivation unit constructed to derive a score corresponding to an expression of the face in each of the successively sensed images on the basis of the predetermined features extracted from the face region;
a recording unit constructed to selectively record the successively sensed images in a predetermined storage device; and
a control unit constructed to control whether or not to perform recording in the predetermined storage device for each of the successively sensed images, based on the score derived for each of the successively sensed images.
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Abstract
An image including a face is input (S201), a plurality of local features are detected from the input image, a region of a face in the image is specified using the plurality of detected local features (S202), and an expression of the face is determined on the basis of differences between the detection results of the local features in the region of the face and detection results which are calculated in advance as references for respective local features in the region of the face (S204).
47 Citations
18 Claims
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1. An image sensing apparatus comprising:
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a sensing unit constructed to successively sense images; a region determination unit constructed to determine a face region in each of the successively sensed images; an extraction unit constructed to extract predetermined features representing parts of a face from the determined face region in each of the successively sensed images; a score derivation unit constructed to derive a score corresponding to an expression of the face in each of the successively sensed images on the basis of the predetermined features extracted from the face region; a recording unit constructed to selectively record the successively sensed images in a predetermined storage device; and a control unit constructed to control whether or not to perform recording in the predetermined storage device for each of the successively sensed images, based on the score derived for each of the successively sensed images. - View Dependent Claims (9, 10, 11, 13, 14, 15)
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2. An image processing apparatus comprising:
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a sensing unit constructed to successively sense frame images; a region determination unit constructed to determine a face region in each of the successively sensed frame images; an extraction unit constructed to extract predetermined features representing parts of a face from the determined face region in each of the successively sensed frame images; a score derivation unit constructed to derive a score corresponding to an expression of the face on the basis of differences between relative positions of predetermined features detected from a face image which is set in advance as a reference and the extracted predetermined features included in a region of an image of a second frame subsequent to a first frame, wherein the region of the image of the second frame positionally corresponds to the face region determined by said region determination unit in an image of the first frame sensed by said sensing unit; a recording unit constructed to selectively record the successively sensed frame images in a predetermined storage device; and a control unit constructed to control whether or not to perform recording in the predetermined storage device for each of the successively sensed frame images, based on the score derived for each of the successively sensed frame images.
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3. An image processing apparatus comprising:
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a sensing unit constructed to successively sense images; a region determination unit constructed to determine a face region in each of the successively sensed images; an extraction unit constructed to extract predetermined features representing parts of a face from the determined face region in each of the successively sensed images; a first determination unit constructed to identify a person who has the face in the image sensed by said sensing unit using the predetermined features extracted from the face region determined by said region determination unit; score derivation unit constructed to derive a score corresponding to an expression of the face using the predetermined features extracted from the face region determined by said region determination unit; a recording unit constructed to selectively record the successively sensed images in a predetermined storage device; and a control unit constructed to control whether or not to perform recording in the predetermined storage device for each of the successively sensed images, based on the score derived for each of the successively sensed images. - View Dependent Claims (12, 16)
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4. An image processing method comprising:
- performing by a processor the following steps;
an input step of successively sensing images; a region determination step of determining a face region in each of the successively sensed images; an extraction step of extracting predetermined features representing parts of a face from the determined face region in each of the successively sensed images; a score derivation step of deriving a score corresponding to an expression of the face in each of the successively sensed images on the basis of the predetermined features extracted from the face region; a recording step of selectively recording the successively sensed images in a predetermined storage device; and a control step of controlling whether or not to perform recording in the predetermined storage device for each of the successively sensed images, based on the score derived for each of the successively sensed images. - View Dependent Claims (7, 8)
- performing by a processor the following steps;
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5. An image processing method comprising:
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performing by a processor the following steps; an input step of successively sensing frame images; a region determination step of determining a face region in each of the successively sensed frame images; an extraction step of extracting predetermined features representing parts of a face from the determined face region in each of the successively sensed frame images; a score derivation step of deriving a score corresponding to an expression of the face on the basis of differences between relative positions of the predetermined features detected from a face image which is set in advance as a reference and the extracted predetermined features included in a region of an image of a second frame subsequent to a first frame, wherein the region of the image of the second frame positionally corresponds to the face region determined in said region determination step in an image of the first frame sensed in the sensing step; a recording step of selectively recording the successively sensed frame images in a predetermined storage device; and a control step of controlling whether or not to perform recording in the predetermined storage device for each of the successively sensed frame images, based on the score derived for each of the successively sensed frame images. - View Dependent Claims (17)
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6. An image processing method comprising:
- performing by a processor the following steps;
a sensing step of successively sensing images; a region determination step of determining a face region in each of the successively sensed images; an extraction step of extracting predetermined features representing parts of a face from the determined face region in each of the successively sensed images; a first determination step of identifying a person who has the face in the image sensed in the sensing step using the predetermined features extracted from the face region determined in the region determination step; a score derivation step of deriving a score corresponding to an expression of the face using the predetermined features extracted from the face region determined in the region determination step; a recording step of selectively recording the successively sensed images in a predetermined storage device; and a controlling step of controlling whether or not to perform recording in the predetermined storage device for each of the successively sensed images, based on the score derived for each of the successively sensed images. - View Dependent Claims (18)
- performing by a processor the following steps;
Specification