IMAGE RECORDING METHOD, IMAGE RECORDING DEVICE, AND STORAGE MEDIUM
First Claim
1. An image recording method for sequentially obtaining consecutive images, and recording one image from among the images, comprising:
- an initialization step comprising;
a step of setting a specified region and a tracking range surrounding the specified region within the image,a step of storing a characteristic value of the specified region within the image, anda step of generating a predetermined number of search points in the specified region of the image,a filtering step comprising;
a step of updating coordinates of a plurality of search points by using a random number,a step of comparing the characteristic value of the specified region with a characteristic value of each of the search points after being updated in the image, assigning to the search points weights determined so as to be increased in proportion to a degree of similarity therebetween,a step of screening the search points according to the weights thus assigned thereto,a step of calculating a variance of the coordinates of the screened search points, anda step of calculating a weighted average of the coordinates of the screened search points, andan image recording determination step of determining, based on the variance of the coordinates of the screened search points, the weighted average of the coordinates of the screened search points, and the tracking range, whether or not to record the image, and recording the image in a case of determining to record the image.
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Accused Products
Abstract
An image recording comprising: an initialization step of generating a predetermined number of search points in a specified region of an image, a filtering step of updating coordinates of a plurality of search points, comparing a characteristic value of the specified region with a characteristic value of each of the search points after updated in the image, assigning to the search points weights determined so as to he increased in proportion to a degree of similarity therebetween, screening the search points according to the weights, calculating a variance and a weighted average of the coordinates of the screened search points, and an image recording determination step of determining, based on the variance and weighted average of the coordinates of the screened search points, and the tracking range, whether or not to record the image, and recording the image if it is determined to record the image.
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Citations
20 Claims
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1. An image recording method for sequentially obtaining consecutive images, and recording one image from among the images, comprising:
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an initialization step comprising; a step of setting a specified region and a tracking range surrounding the specified region within the image, a step of storing a characteristic value of the specified region within the image, and a step of generating a predetermined number of search points in the specified region of the image, a filtering step comprising; a step of updating coordinates of a plurality of search points by using a random number, a step of comparing the characteristic value of the specified region with a characteristic value of each of the search points after being updated in the image, assigning to the search points weights determined so as to be increased in proportion to a degree of similarity therebetween, a step of screening the search points according to the weights thus assigned thereto, a step of calculating a variance of the coordinates of the screened search points, and a step of calculating a weighted average of the coordinates of the screened search points, and an image recording determination step of determining, based on the variance of the coordinates of the screened search points, the weighted average of the coordinates of the screened search points, and the tracking range, whether or not to record the image, and recording the image in a case of determining to record the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20)
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13. An image recording device for sequentially obtaining consecutive images, and recording one image from among the images, comprising:
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an initialization means for setting a specified region and a tracking range surrounding the specified region within the image, storing a characteristic value of the specified region within the image, and generating a predetermined number of search points in the specified region of the image, a filtering means for updating coordinates of a plurality of search points by using a random number, comparing the characteristic value of the specified region with a characteristic value of each of the search points after being updated in the image, assigning to the search points weights determined so as to be increased in proportion to a degree of similarity therebetween, screening the search points according to the weights thus assigned thereto, calculating a variance of the coordinates of the screened search points, and calculating a weighted average of the coordinates of the screened search points, and an image recording determination means for, based on the variance of the coordinates of the screened search points, the weighted average of the coordinates of the screened search points, and the tracking range, determining whether or not to record the image, and recording the image in a case of determining to record the image.
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Specification