A Hybrid Approach for CT Image Noise Reduction Combining Method Noise-CNN and Shearlet Transform
Biomedical and Pharmacology Journal, ISSN: 2456-2610, Vol: 17, Issue: 3, Page: 1875-1898
2024
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Most Recent News
New Biomedicine and Pharmacology Study Findings Recently Were Reported by a Researcher at SR University (A Hybrid Approach for CT Image Noise Reduction Combining Method Noise-CNN and Shearlet Transform)
2024 OCT 28 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx Drug Daily -- A new study on biomedicine and pharmacology is now
Article Description
The presence of gaussian noise commonly weakens the diagnostic precision of low-dose CT imaging. A novel CT image denoising technique that integrates the non-subsampled shearlet transform (NSST) with Bayesian thresholding, and incorporates a modern method noise Deep Convolutional neural network (DCNN) based post-processing operation on denoised images to strengthen low-dose CT imaging quality. The hybrid method commences with NSST and Bayesian thresholding to mitigate the initial noise while preserving crucial image features, such as corners and edges. The novel aspect of the proposed approach is its successive application of a DnCNN on initial denoised image, which learns and removes residual noise patterns from denoised images, thereby enhancing fine detail preservation. This dual-phase strategy addresses both noise suppression and image-detail preservation. The proposed technique is evaluated through the use of metrics, such as PSNR, SNR, SSIM, ED, and UIQI. The results demonstrate that the hybrid approach outperforms standard denoising techniques in preserving image quality and fine details.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85207072292&origin=inward; http://dx.doi.org/10.13005/bpj/2991; https://biomedpharmajournal.org/vol17no3/a-hybrid-approach-for-ct-image-noise-reduction-combining-method-noise-cnn-and-shearlet-transform/; https://dx.doi.org/10.13005/bpj/2991
Oriental Scientific Publishing Company
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