文章基本信息

标题：MRI De-noising Image of Salt & Pepper Noise using Non Linear Filte
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作者：SRISHTI MALVIYA ; ABHISHEK AGWEKAR
期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2021
卷号：9
期号：7
页码：8273-8279
DOI：10.15680/IJIRCCE.2021.0907069
语种：English
出版社：S&S Publications
摘要：In MRI images noise removal techniques have become an essential exercise in medical imaging applications, for the study of anatomical structures. MRI images are affected by Rician noise due to the magnitude image formation. Presence of Rician noise can significantly affect the image quality and contrast ratio of an image. In this paper Modified Median Filter technique is used for de-noising Rician noise. Rician noise displays varying distribution characteristic depending on the SNR of the image. Based on the probability distribution function of noise and SNR information obtained from the image, the proposed filter uses selection of filtering window of size 3X3 to perform de-noising. The proposed filtering technique has been implemented on MRI images. The efficiency of the proposed filtering technique is verified with a study of the PSNR characteristic of the de-noised and noisy image with respect to the true image. The proposed de-noising technique shows an improvement in the contrast ratio and PSNR of the noisy image.
关键词：Rician Noise;Median Filter;De-noising