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2016 ; 2016
(ä): 6814791
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Automatic Detection of Optic Disc in Retinal Image by Using Keypoint Detection,
Texture Analysis, and Visual Dictionary Techniques
#MMPMID27110272
Akyol K
; ?en B
; Bay?r ?
Comput Math Methods Med
2016[]; 2016
(ä): 6814791
PMID27110272
show ga
With the advances in the computer field, methods and techniques in automatic
image processing and analysis provide the opportunity to detect automatically the
change and degeneration in retinal images. Localization of the optic disc is
extremely important for determining the hard exudate lesions or
neovascularization, which is the later phase of diabetic retinopathy, in computer
aided eye disease diagnosis systems. Whereas optic disc detection is fairly an
easy process in normal retinal images, detecting this region in the retinal image
which is diabetic retinopathy disease may be difficult. Sometimes information
related to optic disc and hard exudate information may be the same in terms of
machine learning. We presented a novel approach for efficient and accurate
localization of optic disc in retinal images having noise and other lesions. This
approach is comprised of five main steps which are image processing, keypoint
extraction, texture analysis, visual dictionary, and classifier techniques. We
tested our proposed technique on 3 public datasets and obtained quantitative
results. Experimental results show that an average optic disc detection accuracy
of 94.38%, 95.00%, and 90.00% is achieved, respectively, on the following public
datasets: DIARETDB1, DRIVE, and ROC.