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Pre-processing of Retinal Images for Removal of Outliers

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Abstract

Early diagnosis of diseases related with retina such as glaucoma is of utmost importance in current scenario as it is the second most prevailing cause of irreversible blindness over the world and is expected to increase further in near future. It is commonly diagnosed using retinal images which are acquired by digital fundus cameras. But the acquired images may be prone to certain outliers that create hindrance in diagnosis of glaucoma by tempering the accuracy. These outliers include retinal vessels, low contrast of images and uneven illumination that deteriorates the performance of disc and cup segmentation which are the key indicators to diagnose glaucoma. Thus, pre-processing of retinal images to remove outliers plays a significant role in diagnosis. This paper presents an approach for pre-processing the retinal fundus image followed by its comparison with state of the art. Based on the experimental analysis the performance of the proposed approach is found to be better than the state of the art based on the analysis using metrics such as peak signal to ratio, mean square error and structural similarity index. Further, the proposed approach has been compared with state of the art using metrics such as Jaccard index and dice similarity on the basis of segmentation outcomes on different pre-processing approaches.

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  1. Computer Science and Engineering, University Institute and Engineering and Technology, Panjab University, Chandigarh, India

    Niharika Thakur & Mamta Juneja

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Thakur, N., Juneja, M. Pre-processing of Retinal Images for Removal of Outliers. Wireless Pers Commun 116, 739–765 (2021). https://doi.org/10.1007/s11277-020-07736-x

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