IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM
First Claim
1. An image processing device, comprising:
- a reference background storage means for storing a reference background image;
an estimation means for detecting an object from an input image and estimating an approximate position and an approximate shape of the object that is detected;
a background difference image generation means for generating a background difference image obtained based on a difference value between the input image and the reference background image;
a failure determination means for determining whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation means and the object that is estimated by the estimation means;
a failure type identification means for identifying a type of the failure; and
a background image update means for updating the reference background image in a manner to correspond to the type of the failure.
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Accused Products
Abstract
An image processing device includes a reference background storage unit that stores a reference background image, an estimation unit that detects an object from an input image and estimates an approximate position and an approximate shape of the object that is detected, a background difference image generation unit that generates a background difference image obtained based on a difference value between the input image and the reference background image, a failure determination unit that determines whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation unit and the object that is estimated by the estimation unit, a failure type identification unit that identifies a type of the failure, and a background image update unit that updates the reference background image in a manner to correspond to the type of the failure.
24 Citations
11 Claims
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1. An image processing device, comprising:
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a reference background storage means for storing a reference background image; an estimation means for detecting an object from an input image and estimating an approximate position and an approximate shape of the object that is detected; a background difference image generation means for generating a background difference image obtained based on a difference value between the input image and the reference background image; a failure determination means for determining whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation means and the object that is estimated by the estimation means; a failure type identification means for identifying a type of the failure; and a background image update means for updating the reference background image in a manner to correspond to the type of the failure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An image processing method of an image processing device, the image processing device including,
a reference background storage means for storing a reference background image, an estimation means for detecting an object from an input image and estimating an approximate position and an approximate shape of the object that is detected, a background difference image generation means for generating a background difference image obtained based on a difference value between the input image and the reference background image, a failure determination means for determining whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation means and the object that is estimated by the estimation means, a failure type identification means for identifying a type of the failure, and a background image update means for updating the reference background image in a manner to correspond to the type of the failure, the image processing method comprising the steps of: -
storing the reference background image, in the reference background storage means; detecting the object from the input image and estimating the approximate position and the approximate shape of the object that is detected, in the estimation means; generating the background difference image based on the difference value between the input image and the reference background image, in the background difference image generation means; determining whether a failure occurs in the background difference image based on the comparison between the background difference image that is generated through processing of the step of generating a background difference image and the object that is estimated through processing of the step of estimating, in the failure determination means; identifying a type of the failure, in the failure type identification means; and updating the reference background image in a manner to correspond to the type of the failure, in the background image update means.
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10. A program allowing a computer that controls an image processing device, the image processing device including
a reference background storage means for storing a reference background image, an estimation means for detecting an object from an input image and estimating an approximate position and an approximate shape of the object that is detected, a background difference image generation means for generating a background difference image obtained based on a difference value between the input image and the reference background image, a failure determination means for determining whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation means and the object that is estimated by the estimation means, a failure type identification means for identifying a type of the failure, and a background image update means for updating the reference background image in a manner to correspond to the type of the failure, the program allowing the computer to execute processing comprising the steps of: -
storing the reference background image, in the reference background storage means; detecting the object from the input image and estimating the approximate position and the approximate shape of the object that is detected, in the estimation means; generating the background difference image based on the difference value between the input image and the reference background image, in the background difference image generation means; determining whether a failure occurs in the background difference image based on the comparison between the background difference image that is generated through processing of the step of generating a background difference image and the object that is estimated through processing of the step of estimating, in the failure determination means; identifying a type of the failure, in the failure type identification means; and updating the reference background image in a manner to correspond to the type of the failure, in the background image update means.
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11. An image processing device, comprising:
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a reference background storage unit configured to store a reference background image; an estimation unit configured to detect an object from an input image and estimate an approximate position and an approximate shape of the object that is detected; a background difference image generation unit configured to generate a background difference image obtained based on a difference value between the input image and the reference background image; a failure determination unit configured to determine whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation unit and the object that is estimated by the estimation unit; a failure type identification unit configured to identify a type of the failure; and a background image update unit configured to update the reference background image in a manner to correspond to the type of the failure.
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Specification