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http://dx.doi.org/10.7742/jksr.2019.13.4.623

Feasibility Study of Non Local Means Noise Reduction Algorithm with Improved Time Resolution in Light Microscopic Image  

Lee, Youngjin (Department of Radiological Science, College of Health Science, Gachon University)
Kim, Ji-Youn (Department of Dental Hygiene, College of Health Science, Gachon University)
Publication Information
Journal of the Korean Society of Radiology / v.13, no.4, 2019 , pp. 623-628 More about this Journal
Abstract
The aim of this study was to design fast non local means (FNLM) noise reduction algorithm and to confirm its application feasibility in light microscopic image. For that aim, we acquired mouse first molar image and compared between previous widely used noise reduction algorithm and our proposed FNLM algorithm in acquired light microscopic image. Contrast to noise ratio, coefficient of variation, and no reference-based evaluation parameter such as natural image quality evaluator (NIQE) and blind/referenceless image spatial quality evaluator (BRISQUE) were used in this study. According to the result, our proposed FNLM noise reduction algorithm can achieve excellent result in all evaluation parameters. In particular, it was confirmed that the NIQE and BRISQUE evaluation parameters for analyzing the overall morphologcal image of the tooth were 1.14 and 1.12 times better than the original image, respectively. In conclusion, we demonstrated the usefulness and feasibility of FNLM noise reduction algorithm in light microscopic image of small animal tooth.
Keywords
Light microscopic image; Image processing; FNLM noise reduction algorithm; Quantitative evaluation;
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