Presentation 2018-11-29
Acceleration of Edge-preserving Smoothing Filters with Local LUT
Hiroshi Tajima, Teppei Tsubokawa, Yoshihiro Maeda, Norishige Fukushima,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Edge-preserving filters have been used in various applications in image processing. As the number of pixels of digital cameras has been increasing, thus the computational cost becomes higher since the order of the filters depends on the image size. There are several acceleration approaches for the edge-preserving filtering; however, most approaches reduce the dependency of filtering kernel size for acceleration. In this paper, we propose a method to accelerate the edge-preserving filters for high-resolution images. The proposed method subsamples an input image and then performs the edge-preserving filtering on the subsampled image. The proposed method then upsamples the subsampled image with the guidance, which is the high-resolution input image. For thisupsampling, we generate per-pixel LUTs for high-precision upsampling. Experimental results show that the proposed method has higher performance than the conventional approaches.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Edge-preserving smoothing filters / local LUT / Bilateral filtering / L0 smoothing
Paper # CS2018-74,IE2018-53
Date of Issue 2018-11-22 (CS, IE)

Conference Information
Committee CS / IE / IPSJ-AVM / ITE-BCT
Conference Date 2018/11/29(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokushima University (Memorial Hall of Almuni(Engineering))
Topics (in Japanese) (See Japanese page)
Topics (in English) Image coding, Communications and streaming technologies, etc.
Chair Hidenori Nakazato(Waseda Univ.) / Takayuki Hamamoto(Tokyo Univ. of Science) / Hideaki Kimata(NTT) / Tomoaki Otsuki(Keio Univ.)
Vice Chair Jun Terada(NTT) / Hideaki Kimata(NTT) / Kazuya Kodama(NII) / / Kyoichi Saito(NHK) / Yasushi Kasuga(TV Asahi) / Masayoshi Fukumoto(NEC)
Secretary Jun Terada(NTT) / Hideaki Kimata(Waseda Univ.) / Kazuya Kodama(KDDI Research) / (Nagoya Univ.) / Kyoichi Saito(NTT) / Yasushi Kasuga(Tokyo Univ. of Science) / Masayoshi Fukumoto(KDDI Research, Inc.)
Assistant Kazutaka Hara(NTT) / Kentaro Toyoda(Keio Univ.) / Kazuya Hayase(NTT) / Yasutaka Matsuo(NHK) / / Toshiharu Morizumi(NTT) / Takahiro Shiozawa(National Inst. of Tech., Kagawa College) / Shigeru Watanabe(Nihon Dengyo Kosaku) / Shinya Takeuchi(NHK) / Takao Tsuda(NHK)

Paper Information
Registration To Technical Committee on Communication Systems / Technical Committee on Image Engineering / Special Interest Group on Audio Visual and Multimedia Information Processing / Technical Group on Broadcasting Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Acceleration of Edge-preserving Smoothing Filters with Local LUT
Sub Title (in English)
Keyword(1) Edge-preserving smoothing filters
Keyword(2) local LUT
Keyword(3) Bilateral filtering
Keyword(4) L0 smoothing
1st Author's Name Hiroshi Tajima
1st Author's Affiliation Nagoya Institute of Technology(NIT)
2nd Author's Name Teppei Tsubokawa
2nd Author's Affiliation Nagoya Institute of Technology(NIT)
3rd Author's Name Yoshihiro Maeda
3rd Author's Affiliation Nagoya Institute of Technology(NIT)
4th Author's Name Norishige Fukushima
4th Author's Affiliation Nagoya Institute of Technology(NIT)
Date 2018-11-29
Paper # CS2018-74,IE2018-53
Volume (vol) vol.118
Number (no) CS-328,IE-329
Page pp.pp.27-32(CS), pp.27-32(IE),
#Pages 6
Date of Issue 2018-11-22 (CS, IE)