ISSN 1004-4140
CN 11-3017/P
ZHANG Dao-zhong, HUO Xiu-kun, LI Tao, ZHANG Wei. Base on Improved NL-Means Algorithm for Medical CT Image Denoising[J]. CT Theory and Applications, 2013, 22(2): 297-302.
Citation: ZHANG Dao-zhong, HUO Xiu-kun, LI Tao, ZHANG Wei. Base on Improved NL-Means Algorithm for Medical CT Image Denoising[J]. CT Theory and Applications, 2013, 22(2): 297-302.

Base on Improved NL-Means Algorithm for Medical CT Image Denoising

  • The medical CT Image will bring in noise when in the process of imaging. The noise can reduce the quality of image and affect the clinical diagnosis. Therefore, medical CT image denoising plays an important role in the diagnosis and treatment. This paper proposes the classical NL-Means algorithm at firse, then changes the denoising key role of the weighted kernel function. The experiment shows the algorithm for medical CT image denoising have certain effect, and can better preserve the detail information. For the PSNR, it can be improved by 2.59 dB at most.
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