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Deep Residual Network Based on Image Priors for Single Image Super Resolution in FFA Images

G. R. Hemalakshmi*, D. Santhi, V. R. S. Mani, A. Geetha, N. B. Prakash

National Engineering College, Kovilpatti, 628503, India

* Corresponding Author: G. R. Hemalakshmi. Email: email

Computer Modeling in Engineering & Sciences 2020, 125(1), 125-143. https://doi.org/10.32604/cmes.2020.011331

Abstract

Diabetic retinopathy, aged macular degeneration, glaucoma etc. are widely prevalent ocular pathologies which are irreversible at advanced stages. Machine learning based automated detection of these pathologies facilitate timely clinical interventions, preventing adverse outcomes. Ophthalmologists screen these pathologies with fundus Fluorescein Angiography Images (FFA) which capture retinal components featuring diverse morphologies such as retinal vasculature, macula, optical disk etc. However, these images have low resolutions, hindering the accurate detection of ocular disorders. Construction of high resolution images from these images, by super resolution approaches expedites the diagnosis of pathologies with better accuracy. This paper presents a deep learning network for Single Image Super Resolution (SISR) of fundus fluorescein angiography images, modeled on residual learning, gridded interpolation and Swish activation functions. The image prior for this network is constructed by gridded interpolation which provides better image fidelity compared to other priors. Evaluation of the performance of this network and comparative analysis with benchmark architectures, on a standard dataset shows that the proposed network is superior with respect to performance metrics and computational time.

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APA Style
Hemalakshmi, G.R., Santhi, D., Mani, V.R.S., Geetha, A., Prakash, N.B. (2020). Deep residual network based on image priors for single image super resolution in FFA images. Computer Modeling in Engineering & Sciences, 125(1), 125-143. https://doi.org/10.32604/cmes.2020.011331
Vancouver Style
Hemalakshmi GR, Santhi D, Mani VRS, Geetha A, Prakash NB. Deep residual network based on image priors for single image super resolution in FFA images. Comput Model Eng Sci. 2020;125(1):125-143 https://doi.org/10.32604/cmes.2020.011331
IEEE Style
G.R. Hemalakshmi, D. Santhi, V.R.S. Mani, A. Geetha, and N.B. Prakash "Deep Residual Network Based on Image Priors for Single Image Super Resolution in FFA Images," Comput. Model. Eng. Sci., vol. 125, no. 1, pp. 125-143. 2020. https://doi.org/10.32604/cmes.2020.011331

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cc Copyright © 2020 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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