optical disk detection
2016-08-23
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Use this code to find blood vessels and discs in the retina image.An The effective detection of optic disc in color retinal image is the basic step in automatic retinal image analysis system. This paper presents a new method for automatic location and accurate boundary detection of optic disc. The iterative threshold method, followed by connective component analysis, was used to locate the center of the optic disc. Then, the geometric model is applied to discover the exact boundary of the optic disc based on the hidden active contour model. The method evaluates 148 retinal images on a carefully selected database and compares with human experts. The accuracy of optic disc positioning is 99.3%. The sensitivity and specificity of mean ± SD in boundary detection were 90.67 ± 5 and 94.06 ± 5 respectively.
matlab
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