Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/22976
Title: Automated system for the diagnosis of glaucoma and diabetic retinopathy
Researcher: Kavitha S
Guide(s): Duraiswamy K
Keywords: Color Histogram
Color Mathematical Morphology
Diabetic Retinopathy
Information and communication engineering
Upload Date: 19-Aug-2014
University: Anna University
Completed Date: 01/12/2012
Abstract: Digital color fundus imaging a popular imaging modality is used for the diagnosis of retinal diseases to assess two sight threatening diseases namely glaucoma and Diabetic Retinopathy In glaucoma diagnosis commonly used quantitative classification of the optic nerve known as Cup to Disc Ratio does not account for the focal narrowing of the neuroretinal rim and disc size As glaucoma progresses optic cup grows larger and leads newlineto changes in the respective fundus images A fundus image analysis system is therefore developed to detect glaucoma in two phases by considering a structural feature with the incorporation of rim width disc size and distribution of textural features to reflect the physiological changes in the fundus images First phase involves the segmentation of optic disc optic cup extraction of structural features and quantification of neuroretinal rim Textural features are combined with the structural features and classified using Adaptive Neuro Fuzzy Inference System in the second phase The methods described in the literature often fail to segment the optic disc boundary accurately due to fuzzy boundaries blood vessel interruption inconsistent image contrast or missing edge features To incorporate the above information in tracing the disc boundary a Differential Windowing technique in the polar coordinate domain is proposed In the DW technique representation of the images in polar coordinate facilitates the description of local image regions in terms of their radial and tangential characteristics to find a closed contour in the region of interest newline newline
Pagination: xxv, 202p.
URI: http://hdl.handle.net/10603/22976
Appears in Departments:Faculty of Information and Communication Engineering

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01_title.pdfAttached File24.07 kBAdobe PDFView/Open
02_certificate.pdf1.12 MBAdobe PDFView/Open
03_abstract.pdf11.49 kBAdobe PDFView/Open
04_acknowledgement.pdf6.05 kBAdobe PDFView/Open
05_contents.pdf50.42 kBAdobe PDFView/Open
06_chapter1.pdf312.9 kBAdobe PDFView/Open
07_chapter2.pdf90.97 kBAdobe PDFView/Open
08_chapter3.pdf655.92 kBAdobe PDFView/Open
09_chapter4.pdf573.43 kBAdobe PDFView/Open
10_chapter5.pdf775.08 kBAdobe PDFView/Open
11_chapter6.pdf781.32 kBAdobe PDFView/Open
12_chapter7.pdf17.08 kBAdobe PDFView/Open
13_references.pdf40.97 kBAdobe PDFView/Open
14_publications.pdf9.5 kBAdobe PDFView/Open
15_vitae.pdf6.09 kBAdobe PDFView/Open


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