کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4970599 | 1450186 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wiener filter-based wavelet domain denoising
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
سخت افزارها و معماری
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Displays - Volume 46, January 2017, Pages 37-41
Journal: Displays - Volume 46, January 2017, Pages 37-41
نویسندگان
Jin Wang, Jiaji Wu, Zhensen Wu, Jechang Jeong, Gwanggil Jeon,