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- W2073257410 abstract "Locating edges in images accurately is important to improve the precision of visual measurement. Firstly, from the characteristics of edge gray distribution in actual images, a method is put forward to detect sub-pixel edges, which fits edge gray distribution with hyperbolic tangent function, and gets subpixel edges through least-square method. Then, the accuracy of the algorithm is evaluated, taking measurement error of sizes of high-accuracy checkerboard as criterion. This evaluation combines with camera calibration technique, which considers factors of lens distortion and perspective distortion." @default.
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- W2073257410 date "2010-12-01" @default.
- W2073257410 modified "2023-10-03" @default.
- W2073257410 title "A Two-Dimensional Sub-Pixel Edge Detection Algorithm Based on Hyperbolic Tangent" @default.
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- W2073257410 doi "https://doi.org/10.1109/iciecs.2010.5677779" @default.
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