Video processing apparatus, video processing method, and video processing program
First Claim
1. A video processing apparatus, the apparatus comprising:
- a feature database that stores features of objects, the objects associated with each other;
a memory storing instructions; and
a processor configured to execute the instructions to;
extract an image in an image region used as an index of image degradation from a video and estimate a degree of image degradation in the image region;
extract a feature of an object to be a search target from the video;
andchange matching processing between the extracted feature and the stored features in accordance with the estimated degree of image degradation, when searching for the object from the video.
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Abstract
This invention provides a video processing apparatus for suppressing a decrease in search accuracy of an object of a search target based on a feature extracted from a degraded image in a video. The video processing apparatus includes an image degradation estimator that extracts an image in an image region used as an index of image degradation from a video and estimates a degree of image degradation in the image region, a feature extractor that extracts a feature of an object of a search target from the video, a feature database that stores the feature of the object of the search target, and a matcher that controls matching between the extracted feature and the stored feature based on the degree of image degradation estimated by the image degradation estimator, when searching for the object from the video.
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Citations
17 Claims
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1. A video processing apparatus, the apparatus comprising:
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a feature database that stores features of objects, the objects associated with each other; a memory storing instructions; and a processor configured to execute the instructions to; extract an image in an image region used as an index of image degradation from a video and estimate a degree of image degradation in the image region; extract a feature of an object to be a search target from the video; and change matching processing between the extracted feature and the stored features in accordance with the estimated degree of image degradation, when searching for the object from the video. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A video processing method comprising:
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extracting an image in an image region used as an index of image degradation from a video and estimating a degree of image degradation in the image region; extracting a feature of an object of a search target from the video; storing the feature of the object of the search target in a feature database; and changing matching processing between the extracted feature and the stored feature in accordance with the estimated degree of image degradation, when searching for the object from the video.
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15. A non-transitory computer readable medium storing a video processing program for causing a computer to execute a method, comprising:
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extracting an image in an image region used as an index of image degradation from a video and estimating a degree of image degradation in the image region; extracting a feature of an object of a search target from the video; storing the feature of the object of the search target in a feature database; and changing matching processing between the extracted feature and the stored feature in accordance with the estimated degree of image degradation, when searching for the object from the video.
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16. A video processing apparatus, the apparatus comprising:
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a feature database that stores features of objects and the objects associated with each other; a memory storing instructions; and a processor configured to execute the instructions to; extract an image in an image region used as an index of image degradation from a video and estimate a degree of image degradation in the image region; extract a feature of an object to be a search target from the video; and match between the extracted feature and the stored features, and output a matching result with the estimated degree of image degradation, when searching for the object from the video.
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17. A video processing apparatus, the apparatus comprising:
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a feature database that stores plurality kinds of features of an object and the object associated with each other; a memory storing instructions; and a processor configured to execute the instructions to; extract an image in an image region used as an index of image degradation from a video and estimate a degree of image degradation in the image region; extract the plurality kinds of features of an object to be a search target from the video; and change a combination of the plurality kinds of features to be used on matching between the extracted features and the stored features, in accordance with the estimated degree of image degradation, when searching for the object from the video.
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Specification