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- W2364369511 abstract "Currently location algorithm of circle target is mainly ellipse-fitting by edge pixels,under ideal condition,it can obtain sub-pixel precision. However,it has complex computations and huge influences from noise. So a precise center location algorithm,iteration and approximation through edge pixels based on edge extraction and coarse location without ellipse-fitting,is introduced. And analysis of laws between center error and noise and iterative times are emphasized. It turns out that center error present as exponential function in the case of same noise and different iterative times while it presents as fourier function in the case of same iterative times and different noise. The similarity between error model of x and y further proves that can precisely forecast location error of circle target under various noise conditions with the function model above. At last,tests demonstrate that the center is localized in 0. 02 pixel." @default.
- W2364369511 created "2016-06-24" @default.
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- W2364369511 date "2014-01-01" @default.
- W2364369511 modified "2023-09-24" @default.
- W2364369511 title "Research on the Precise Location Algorithm of Circle Target Based on Iteration and Approximation" @default.
- W2364369511 hasPublicationYear "2014" @default.
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