| Presentation | 2022-12-06 A Proposal of Night Vision Algorithm by a Modified Gamma Transform and S-shape Functions-based Multiscale Image Enhancement Mashiho Mukaida, Noriaki Suetake, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Images taken under low-light conditions such as at night or in a dark rooms are dark and their visibilities are very visibility. Recently, many low-light image enhancement algorithms (night vision algorithms) have been proposed. However, the conventional methods have some problems such as causing over enhancement in bright regions and/or high computational cost. In this report, we propose a new low-light image enhancement method to cope with these problems. In the proposed method, a modified gamma transform is applied to the brightness of the input image. It reduce the distributional bias of dark pixels. Then, the contrast and edges of the image are enhanced and sharpen by applying multiscale image enhancement employing S-shape functions. In the experiments, the proposed method is compared with the state-of-the-art methods through qualitative and quantitative evaluations. Experimental results show the effectiveness of the proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Image enhancement / Night vision algorithm / Modified gamma transform |
| Paper # | SIS2022-34 |
| Date of Issue | 2022-11-28 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2022/12/5(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tomoaki Kimura(Kanagawa Inst. of Tech.) |
| Vice Chair | Naoto Sasaoka(Tottori Univ.) / Hakaru Tamukoh(Kyushu Inst. of Tech.) |
| Secretary | Naoto Sasaoka(NTT) / Hakaru Tamukoh(Kansai Univ.) |
| Assistant | Yoshiaki Makabe(Kanagawa Inst. of Tech.) / Yosuke Sugiura(Saitama Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of Night Vision Algorithm by a Modified Gamma Transform and S-shape Functions-based Multiscale Image Enhancement |
| Sub Title (in English) | |
| Keyword(1) | Image enhancement |
| Keyword(2) | Night vision algorithm |
| Keyword(3) | Modified gamma transform |
| 1st Author's Name | Mashiho Mukaida |
| 1st Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 2nd Author's Name | Noriaki Suetake |
| 2nd Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| Date | 2022-12-06 |
| Paper # | SIS2022-34 |
| Volume (vol) | vol.122 |
| Number (no) | SIS-293 |
| Page | pp.pp.62-67(SIS), |
| #Pages | 6 |
| Date of Issue | 2022-11-28 (SIS) |