Information processing apparatus and information processing method
First Claim
Patent Images
1. An information processing apparatus comprising:
- one or more processors; and
a memory coupled to the one or more processors, the memory having stored thereon instructions which, when executed by the one or more processors, cause the apparatus to;
obtain a feature amount from an input image;
obtain context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image from which the input image has been extracted;
obtain, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object;
obtain, from the context information, a second likelihood indicating a likelihood at which the input image is an image of the specific object; and
identify, by using the first likelihood and the second likelihood, whether the input image is an image of the specific object,wherein the obtaining of the second likelihood is performed by a discriminator which has been learned using the first likelihood and the context information.
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Abstract
A feature amount, and context information representing a context regarding an image are obtained from the image. The first likelihood indicating the likelihood at which the image is an image of a specific object is obtained from the feature amount. The second likelihood indicating the likelihood at which the image is an image of the specific object is obtained from the context information. Whether the image is an image of the specific object is identified using the first likelihood and the second likelihood.
10 Citations
9 Claims
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1. An information processing apparatus comprising:
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one or more processors; and a memory coupled to the one or more processors, the memory having stored thereon instructions which, when executed by the one or more processors, cause the apparatus to; obtain a feature amount from an input image; obtain context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image from which the input image has been extracted; obtain, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object; obtain, from the context information, a second likelihood indicating a likelihood at which the input image is an image of the specific object; and identify, by using the first likelihood and the second likelihood, whether the input image is an image of the specific object, wherein the obtaining of the second likelihood is performed by a discriminator which has been learned using the first likelihood and the context information. - View Dependent Claims (2, 3)
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4. An information processing apparatus comprising:
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one or more processors; and a memory coupled to the one or more processors, the memory having stored thereon instructions which, when executed by the one or more processors, cause the apparatus to; obtain a feature amount from an input image; obtain context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image from which the input image has been extracted; obtain, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object; and learn a discriminator being different from a discriminator for obtaining the first likelihood from the feature amount by using the first likelihood and the context information. - View Dependent Claims (5)
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6. An information processing method for an information processing apparatus, the information processing method comprising:
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obtaining a feature amount from an input image; obtaining context information of the information processing apparatus, to obtain context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image from which the input image has been extracted; obtaining, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object; obtaining, from the context information, a second likelihood indicating a likelihood at which the input image is an image of the specific object; and identifying, by using the first likelihood and the second likelihood, whether the image is an image of the specific object, wherein the obtaining of the second likelihood is performed by a discriminator which has been learned using the first likelihood and the context information.
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7. An information processing method for an information processing apparatus, the information processing method, comprising:
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obtaining a feature amount from an input image; obtaining context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image form which the input image has been extracted; obtaining, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object; and learning a discriminator being different from a discriminator for obtaining the first likelihood from the feature amount by using the first likelihood and the context information.
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8. A non-transitory computer-readable storage medium storing a computer program for causing a computer to execute a method of controlling an information processing apparatus, the method comprising:
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obtaining a feature amount from an input image; obtaining context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image from which the input image has been extracted; obtaining, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object; obtaining, from the context information, a second likelihood indicating a likelihood at which the input image is an image of the specific object; and identifying, by using the first likelihood and the second likelihood, whether the input image is an image of the specific object, wherein the obtaining of the second likelihood is performed by a discriminator which has been learned using the first likelihood and the context information.
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9. A non-transitory computer-readable storage medium storing a computer program for causing a computer to execute a method of controlling an information processing apparatus, the method comprising:
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obtaining a feature amount from an input image; obtaining context information representing a context regarding the input image, wherein the context information includes a position and size of the input image in an original image form which the input image has been extracted; obtaining, from the feature amount, a first likelihood indicating a likelihood at which the input image is an image of a specific object; and learning a discriminator being different from a discriminator for obtaining the first likelihood from the feature amount by using the first likelihood and the context information.
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Specification