Enhancement in the Vision of Branch Retinal Artery Occluded Images Using Boosted Anisotropic Diffusion Filter – An Ophthalmic Assessment

ABSTRACT

High rated and active research in Ophthalmic field has paved the way for the detection of several retinal disorders which helps the ophthalmologist, in scheduling and executing timely treatment. There exist different imaging device for retinal examination in ophthalmology with varying degrees of resolution. The images obtained from such imaging devices contains noise which must be eliminated for producing accurate results. This paper mainly concentrates on using boosted anisotropic diffusion filter (BADF) which outperforms the existing anisotropic diffusion filter and is compared with different filters to authenticate the performance. Various performance measures are taken into considerations which are mean square error, structural similarity index, peak signal to noise ratio and signal to noise ratio. The proposed work is tested for 20 images (10 abnormal BRAO from clinical database and 10 normal images). This paper clearly concludes that BADF helps the radiologist in accurate retinal examination and thereby reducing the risk factors.

KEYWORDS:

• Anisotropic
• Biomedical imaging
• Boosting
• Data pre-processing
• Diffusion process
• Filtering
• Image denoising
• Image enhancement
• Image quality

Additional information

Notes on contributors

S.G. Gayathri

S G Gayathri received the bachelor's degree in electronics and communication engineering in 2015 and the ME degree in communication systems in 2017 both from Arunachala College of Engineering for Women and currently pursuing PhD degree in information and communication engineering in Arunachala College of Engineering for Women.

S. Joseph Jawhar

S Joseph Jawhar received PhD degree in power electronics from Anna university Chennai in 2009. From 1990 to1991 he was an associate lecturer and from 1994 to 1998 he was lecturer in EEE and from 1998 to 2001 he was an assiatant professor and HOD for EEE all in Noorul Islam College of Engineering, Kumaracoil and in 2009 he served as controller of examination for Noorul Islam University. Currently, he is working as principal/professor in the Department of EEE in Arunachala College of Engineering for Women Manavilai. Email: [email protected]