Samarendra Dandapat

Work place: Department of Electronics and Electrical Engineering, IIT Guwahati

E-mail: samaren@iitg.ernet.in

Website:

Research Interests: Speech Synthesis, Medical Image Computing, Image Processing, Image and Sound Processing

Biography

Samarendra Dandapat received the B.E. degree in Electrical Engineering from Motilal Nehru Regional Engineering College, Allahabad, India, in 1986, the M.Tech degree in biomedical engineering from the Institute of Technology, Banaras Hindu University, Varanasi, India, in 1991, and the Ph.D. degree in Electrical Engineering from the Indian Institute of Technology (IIT) Kanpur, India, in 1997. He was a Lecturer in electrical engineering at Indira Gandhi Institute of Technology, Talcher, Orissa, India, from 1986 to 1989. He worked as a Reader in the Electrical and Computer Engineering Department, IET, Rohilkhand University, Bareilly, India, from 1996 to 1997. From May 2003 to July 2004, he worked as a Research Fellow in the Biomedical Engineering Research Center, NTU, Singapore. He joined as an Assistant Professor in the Department Electronics and Electrical Engineering, Indian Institute of Technology, Guwahati, India, in 1997. He has worked as Dean, IIT Patna for setting up a new institute, Indian Institute of Technology Patna. Currently, he is a Professor in the same department and holds post of Dean Administration of the institute. His current research interests are digital signal processing, speech processing, biomedical signal processing, and medical image processing. Dr. Dandapat is a Life Member of the Institution of Engineers, India, and a Life Member of the Biomedical Society of India.

Author Articles
Techniques of Glaucoma Detection From Color Fundus Images: A Review

By Malaya Kumar Nath Samarendra Dandapat

DOI: https://doi.org/10.5815/ijigsp.2012.09.07, Pub. Date: 8 Sep. 2012

Glaucoma is a generic name for a group of diseases which causes progressive optic neuropathy and vision loss due to degeneration of the optic nerves. Optic nerve cells act as transducer and convert light signal entered into the eye to electrical signal for visual processing in the brain. The main risk factors of glaucoma are elevated intraocular pressure exerted by aqueous humour, family history of glaucoma (hereditary) and diabetes. It causes damages to the eye, whether intraocular pressure is high, normal or below normal. It causes the peripheral vision loss. There are different types of glaucoma. Some glaucoma occurs suddenly. So, detection of glaucoma is essential for minimizing the vision loss. Increased cup area to disc area ratio is the significant change during glaucoma. Diagnosis of glaucoma is based on measurement of intraocular pressure by tonometry, visual field examination by perimetry and measurement of cup area to disc area ratio from the color fundus images. In this paper the different signal processing techniques are discussed for detection and classification of glaucoma.

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