Volume 20 No 8 (2022)
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A High Quality Image Denoising Technique with Sub Image Block Classification Technique Using Long Short-Term Memory (LSTM) Network Followed By Bayesian Thresholding
S.L. Shabana Sulthana, Dr.M. Sucharitha
Abstract
Medical image analysis relies heavily on picture denoising. Improved perceptual quality of noisy image samples can
speed up the diagnostic procedure in many circumstances. Even though medical image denoising is widely used, the
current approaches fail to address the wide spectrum of noise in multidisciplinary medical imaging. In this work,
new image denoising will be performed by utilizing Bayesian thresholding with LSTM. Here, 5x5 windowing will be
applied in the DWT domain to classify the noise effected coefficients. The LSTM will be trained by combining noisy
and regular blocks with manually selected label information. The performance will be evaluated using image
denoising performance metrics such as 53.25 of PSNR, 0.98 of SSIM, 0.018 of RMSE etc.
Keywords
Medical Image Denoising, Bayesian Thresholding, Discrete Wavelet Transform, AlexNet, Deep Learning, Peak Signal to Noise Ratio.
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