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    題名: Image Haze Removal Using Airlight White Correction, Local Light Filter, and Aerial Perspective Prior
    作者: 彭彥璁
    Peng, Yan-Tsung;Huang*, S.-C.
    呂智慧
    Lu, Zhihui
    鄭帆捷
    Cheng, Fan-Chieh
    黃士嘉
    Huang, Shih-Chia
    Zheng, Yalun
    貢獻者: 資科系
    關鍵詞: image dehazing;white correction;local light filter;aerial perspective prior
    日期: 2019-03
    上傳時間: 2020-05-26 15:08:42 (UTC+8)
    摘要: Light is scattered and absorbed when travelling through atmosphere particles, leading to visibility attenuation for images captured, especially in hazy scenes. In addition, hazy images may suffer from color distortion caused by haze or sandstorm, resulting in poor visual quality. In order to effectively enhance visibility and correct possible color casts for such images, we propose a new image dehazing algorithm based on an improved haze optical model, which consists of three modules: Airlight White Correction (AWC), Local Light Filter (LLF), and Aerial Perspective Prior (APP). In the proposed algorithm, the AWC module detects and corrects possible color cast, the LLF module downplays non-hazy bright pixels (e.g. headlight and white objects) for more accurate airlight estimation, and the APP module uses the minimum/maximum channel and their difference for scene transmission estimation. Experimental results demonstrate that the proposed method outperforms other state-of-the-art dehazing methods in three ways: 1) our results have better visual quality, 2) our method performs the best in terms of color restoration, and 3) our method is very efficient at removing haze and color casts.
    關聯: IEEE Transactions on Circuits and Systems for Video Technology, Vol.30, No.5, pp.1385-1395
    資料類型: article
    DOI 連結: https://doi.org/10.1109/TCSVT.2019.2902795
    DOI: 10.1109/TCSVT.2019.2902795
    顯示於類別:[資訊科學系] 期刊論文

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