计算机科学与探索2015，Vol.9Issue(11)：1371-1381,11.DOI:10.3778/j.issn.1673-9418.1501016
基于双侧滤波与短时傅里叶变换的改进双域滤波
Improved Dual-Domain Filtering Based on Bilateral Filtering and Short-Time Fourier Transform
摘要
Abstract
Different from single-domain image denoising, dual-domain image denoising effectively combines two sorts of algorithms working in their respective domains together for preserving image details and suppressing noise simultaneously. However, the variance of image is a prerequisite for the dual-domain image donoising, which is hard to be determined accurately in a practical application. As for the dual-domain filtering constructed specifically on the basis of bilateral filtering and short-time Fourier transform (STFT), this paper carries out three aspects of work:(1) Esti-mating the noise image by subtracting dual-domain denoised image to noisy image;(2) Estimating the variance of non-stationary noise on the basis of weighting coefficients of bilateral filtering;(3) Adapting dual-domain filtering to the case of non-stationary noise. The experimental results and related quantitative analysis demonstrate that the proposed adaptive dual-domain filtering can more effectively suppress image noise while retaining image details.关键词
图像去噪/双侧滤波/短时傅里叶变换/双域滤波/非平稳噪声Key words
image denoising/bilateral filtering/short-time Fourier transform/dual-domain filtering/non-stationary noise分类
信息技术与安全科学引用本文复制引用
汤少杰,黄魁东,吴青,王郑耀,范九伦..基于双侧滤波与短时傅里叶变换的改进双域滤波[J].计算机科学与探索,2015,9(11):1371-1381,11.基金项目
The National Natural Science Foundation of China under Grant Nos. 61340040, 61100165 (国家自然科学基金) （国家自然科学基金）
the Research Foun-dation of the Department of Education of Shaanxi Province under Grant No. 15JK1673 (陕西省教育厅专项科研计划项目) （陕西省教育厅专项科研计划项目）
the Foundation of Xi'an University of Posts and Telecommunications for Young Teachers under Grant No. ZL2014-31 (西安邮电大学青年教师基金) （西安邮电大学青年教师基金）
the Open Foundation of the Key Lab of Contemporary Design and Integrated Manufacturing Technology (Northwestern Polytechnical University), Ministry of Education under Grant No. KF201401 (西北工业大学现代设计与集成制造技术教育部重点实验室开放课题基金). （Northwestern Polytechnical University）
