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14 August 2019 Sparse representation based medical ultrasound images denoising with reshaped-RED
Xiaoqiu Pu, Zhixin Li, Baopeng Li, Hao Lei, Wei Gao, Jiwei Liu
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Proceedings Volume 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019); 111790K (2019) https://doi.org/10.1117/12.2540245
Event: Eleventh International Conference on Digital Image Processing (ICDIP 2019), 2019, Guangzhou, China
Abstract
Medical ultrasound images are usually corrupted by the noise during their acquisition known as speckle. Speckle noise removal is a key stage in medical ultrasound image processing. Due to the ill-posed feature of image denoising, many regularization methods have been proved effective. This paper introduces an approach which collaborate both sparse dictionary learning and regularization method to remove the speckle noise. The method trains a redundant dictionary by an efficient dictionary learning algorithm, and then uses it in an image prior regularization model to obtain the recovered image. Experimental results demonstrate that the proposed model has enhanced performance both in despeckling and texture-preserving of medical ultrasound images compared to some popular methods.
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Xiaoqiu Pu, Zhixin Li, Baopeng Li, Hao Lei, Wei Gao, and Jiwei Liu "Sparse representation based medical ultrasound images denoising with reshaped-RED", Proc. SPIE 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019), 111790K (14 August 2019); https://doi.org/10.1117/12.2540245
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KEYWORDS
Speckle
Ultrasonography
Digital filtering
Denoising
Medical imaging
Image filtering
Image denoising
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