Designing of Computer Aided Diagnostic System for the Identification of Exudates in Retinal Fundus Images

  • santosh kumar mishra Thapar university
  • Deepti Mittal Electrical and Instrumentation Engineering Department, Thapar University, Patiala (Punjab), India
  • Ramesh kumar sunkaria Department of electronic and communication, Dr.B.R. Ambedkar NIT Jalandher , jalandher, India
Keywords: Macular edema, Diabetic retinopathy, Exudate, Retina fundus images, Morphological reconstruction, Normalization, Candidate exudates detection.

Abstract

Macular edema is an advance stage of diabetic retinopathy which affects central vision of diabetes patients. The main cause of edema is the appearance of exudates near or on macular region in human retina. If the exudates are present in the macular region of retina, it will lead to diabetic macular edema. Early detection of macular edema in diabetic patients paves a path for prevention from blindness. The automatic system for early detection of diabetic macular edema should identify all possible exudates present on the surface of retina. In the proposed work, a computer added diagnosis system is design for the identification of the exudates in color retinal fundus images. The system consists of three stages; candidate exudates detection, feature extraction and classification. The system is designed with (i) background estimation, morphological reconstruction, normalization for candidate exudates detection (ii) Gray level co-occurrence matrix for feature extraction and (iii) support vector machine for classification. The classifier classifies in between the region of exudates and non-exudates. The system performance is evaluated in terms of the parameters such as sensitivity, specificity, mathews correlation coefficient, positive predicative value, and accuracy whose values are 88.23%, 100%, 88.23%, 100%, 93.75% respectively.

Author Biography

santosh kumar mishra, Thapar university
electrical and instrumentataion enginering department,

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Published
2015-07-05
How to Cite
mishra, santosh kumar, Mittal, D., & sunkaria, R. kumar. (2015). Designing of Computer Aided Diagnostic System for the Identification of Exudates in Retinal Fundus Images. Journal of Biomedical Engineering and Medical Imaging, 2(3), 29. https://doi.org/10.14738/jbemi.23.1278