NDLI: The study on improved wavelet threshold method

Content Provider	IEEE Xplore Digital Library
Author	Caixia Deng Xinrui Yang Tanyi Zhong
Copyright Year	2013
Description	Author affiliation: Sch. of Appl. Sci., Harbin Univ. of Sci. & Technol., Harbin, China (Caixia Deng; Xinrui Yang; Tanyi Zhong)
Abstract	Wavelet threshold denoising method is a simple and effective denoising method. But the traditional threshold and threshold functions have some defects. First, the traditional Donoho threshold is improved in this paper, the improved threshold can be changed with the decomposition layers, and it is flexible in practical applications. Then, in terms of the hard threshold with the characteristic of discontinuity and the problem of deviation in soft threshold function, the threshold function is improved. Making the improved threshold function is able to effectively overcome these defects. The experimental results show that the improved algorithm can remove the image noise more effectively and obtain a better denoising effect compared with the traditional methods.
Sponsorship	IEEE Harbin Sect.
Starting Page	1014
Ending Page	1018
File Size	2027714
Page Count	5
File Format	PDF
e-ISBN	9781479913923
DOI	10.1109/MIC.2013.6758131
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms PSNR TV Filtering Wavelet transform Noise reduction Threshold function Threshold
Content Type	Text
Resource Type	Article

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