Wiener filter-based wavelet domain denoising
- Title
- Wiener filter-based wavelet domain denoising
- Author
- 정제창
- Keywords
- Wiener filter; Image denoising; High resolution estimation
- Issue Date
- 2017-01
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- DISPLAYS, v. 46, page. 37-41
- Abstract
- The wavelet domain Wiener filter has been widely adopted as an effective image denoising method that has low complexity. In this paper we propose a novel Wiener filter with high-resolution estimation that determines the signal power while preserving the edge information. We assume that a noisy image is composed of noise and the original image, which are mutually orthogonal. Based on this assumption, we utilize the local covariance to obtain high-resolution coefficients from the low-resolution coefficients and to estimate the signal variance in the Wiener filter by using the high resolution values. The experimental results show that the proposed algorithm improves the objective and subjective performance significantly. (C) 2016 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0141938216301640?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/112362
- ISSN
- 0141-9382; 1872-7387
- DOI
- 10.1016/j.displa.2016.12.003
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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