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what is exactly the Scale values in the SURF point class in computer vision? When I used SURF feature plot function with 'ShowScale' enabled, it plot some circles, but radii of those circles do not match scale values in the SURF points.

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Ding Yuan
Ding Yuan 2016년 1월 14일
댓글: jenny jenny 2020년 8월 16일
what is exactly the Scale values in the SURF point class in computer vision? When I used SURF feature plot function with 'ShowScale' enabled, it plot some circles, but radii of those circles do not match scale values in the SURF points.

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Pavithra Ashok Kumar
Pavithra Ashok Kumar 2016년 1월 19일
The SURF scale is represented by the detection scale of the box filters used for keypoint detection and not the radii of the formed circles. It is in the BRISK pattern that the scale is based on the radius of the BRISK sampling pattern.

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