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題名 A Fast Two-Stage Bilateral Filter Using Constant Time O(1) Histogram Generation
作者 彭彥璁
Peng, Yan-Tsung
Cheng, Sheng-Wei;Lin, Yi-Ting
貢獻者 資科系
關鍵詞 O(1) complexity; bilateral filtering; gaussian filtering; image smoothing
日期 2022-01
上傳時間 6-Feb-2023 14:30:12 (UTC+8)
摘要 Bilateral Filtering (BF) is an effective edge-preserving smoothing technique in image processing. However, an inherent problem of BF for image denoising is that it is challenging to differentiate image noise and details with the range kernel, thus often preserving both noise and edges in denoising. This letter proposes a novel Dual-Histogram BF (DHBF) method that exploits an edge-preserving noise-reduced guidance image to compute the range kernel, removing isolated noisy pixels for better denoising results. Furthermore, we approximate the spatial kernel using mean filtering based on column histogram construction to achieve constant-time filtering regardless of the kernel radius` size and achieve better smoothing. Experimental results on multiple benchmark datasets for denoising show that the proposed DHBF outperforms other state-of-the-art BF methods.
關聯 Sensors, Vol.22, No.3, 926
資料類型 article
DOI https://doi.org/10.3390/s22030926
dc.contributor 資科系
dc.creator (作者) 彭彥璁
dc.creator (作者) Peng, Yan-Tsung
dc.creator (作者) Cheng, Sheng-Wei;Lin, Yi-Ting
dc.date (日期) 2022-01
dc.date.accessioned 6-Feb-2023 14:30:12 (UTC+8)-
dc.date.available 6-Feb-2023 14:30:12 (UTC+8)-
dc.date.issued (上傳時間) 6-Feb-2023 14:30:12 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/143297-
dc.description.abstract (摘要) Bilateral Filtering (BF) is an effective edge-preserving smoothing technique in image processing. However, an inherent problem of BF for image denoising is that it is challenging to differentiate image noise and details with the range kernel, thus often preserving both noise and edges in denoising. This letter proposes a novel Dual-Histogram BF (DHBF) method that exploits an edge-preserving noise-reduced guidance image to compute the range kernel, removing isolated noisy pixels for better denoising results. Furthermore, we approximate the spatial kernel using mean filtering based on column histogram construction to achieve constant-time filtering regardless of the kernel radius` size and achieve better smoothing. Experimental results on multiple benchmark datasets for denoising show that the proposed DHBF outperforms other state-of-the-art BF methods.
dc.format.extent 97 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Sensors, Vol.22, No.3, 926
dc.subject (關鍵詞) O(1) complexity; bilateral filtering; gaussian filtering; image smoothing
dc.title (題名) A Fast Two-Stage Bilateral Filter Using Constant Time O(1) Histogram Generation
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.3390/s22030926
dc.doi.uri (DOI) https://doi.org/10.3390/s22030926