Presentation 2017-12-14
Haze removal algorithm for time-varying haze images
Tatsuya Hamamura, Shinnosuke Ishida, Tomoaki Kimura, Hiroyuki Tsuji,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Outdoor images are often degraded by some atmospheric phenomena such as haze, fog, smoke, etc. The algorithm of recovering contrast and color fidelity of such images is called haze removal. The purpose of this manuscript is to propose fast haze removal algorithm designed for the time-series images captured by fixed point camera such as surveillance. In the proposed method, the difference information of successive two images is used for updating the transmission map, although only the first image should be de-hazed by using a single-image haze removal algorithm, which we used Kaiming He’s method, or dark channel prior. The merit of our method is twofold: one is to reduce the processing time of generating the transmission map significantly, and the other is to remove the time-varying haze more effectively than the conventional single-image algorithm. It is verified through our experiments that the temporal update of transmission map is 10 times faster than the conventional transmission map generation in He’s method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Haze Removal / Surveillance Camera / Time-series Images / Transmission Map
Paper # SIS2017-39
Date of Issue 2017-12-07 (SIS)

Conference Information
Committee SIS
Conference Date 2017/12/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tottori Prefectural Center for Lifelong Learning
Topics (in Japanese) (See Japanese page)
Topics (in English) System on Silicon, Short Range Wireless Systems, etc.
Chair Hirokazu Tanaka(Hiroshima City Univ.)
Vice Chair Takayuki Nakachi(NTT) / Noriaki Suetake(Yamaguchi Univ.)
Secretary Takayuki Nakachi(Kanagawa Inst. of Tech.) / Noriaki Suetake(Kyushu Inst. of Tech.)
Assistant Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Takanori Koga(NIT, Tokuyama Col.)

Paper Information
Registration To Technical Committee on Smart Info-Media Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Haze removal algorithm for time-varying haze images
Sub Title (in English)
Keyword(1) Haze Removal
Keyword(2) Surveillance Camera
Keyword(3) Time-series Images
Keyword(4) Transmission Map
1st Author's Name Tatsuya Hamamura
1st Author's Affiliation Kanagawa Institite of Technology(KAIT)
2nd Author's Name Shinnosuke Ishida
2nd Author's Affiliation Kanagawa Institite of Technology(KAIT)
3rd Author's Name Tomoaki Kimura
3rd Author's Affiliation Kanagawa Institite of Technology(KAIT)
4th Author's Name Hiroyuki Tsuji
4th Author's Affiliation Kanagawa Institite of Technology(KAIT)
Date 2017-12-14
Paper # SIS2017-39
Volume (vol) vol.117
Number (no) SIS-349
Page pp.pp.33-37(SIS),
#Pages 5
Date of Issue 2017-12-07 (SIS)