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- W2172160147 abstract "An algorithm for estimating the corneal limbus from videokeratoscopic images is proposed. After the image is transformed to a polar grid, a novel edge-detection procedure, suitable for the detection of the soft edge produced by the limbus, is used to locate the limbus. Outliers due to the eyelids, eyelashes, and videokeratoscopic rings are removed by taking advantage of the approximate circularity of the cornea. An ellipse which minimizes the sum of the squared algebraic errors is fitted to the remaining edge points. Comparisons between the proposed algorithm, a manual computer-based technique and an algorithm which uses conventional edge-detection techniques demonstrate the accuracy of the proposed algorithm." @default.
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- W2172160147 date "2002-12-01" @default.
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- W2172160147 title "Automatic estimation of the corneal limbus in videokeratoscopy" @default.
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- W2172160147 doi "https://doi.org/10.1109/tbme.2002.805481" @default.
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