A Kalman Filter-Based Method for Restoration of Images Obtained by an In-Vehicle Camera in Foggy Conditions
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概要
- 論文の詳細を見る
In this paper, a Kalman filter-based method for restoration of video images acquired by an in-vehicle camera in foggy conditions is proposed. In order to realize Kalman filter-based restoration, the proposed method clips local blocks from the target frame by using a sliding window and regards the intensities in each block as elements of the state variable of the Kalman filter. Furthermore, the proposed method designs the following two models for restoration of foggy images. The first one is an observation model, which represents a fog deterioration model. The proposed method automatically determines all parameters of the fog deterioration model from only the foggy images to design the observation model. The second one is a non-linear state transition model, which represents the target frame in the original video image from its previous frame based on motion vectors. By utilizing the observation and state transition models, the correlation between successive frames can be effectively utilized for restoration, and accurate restoration of images obtained in foggy conditions can be achieved. Experimental results show that the proposed method has better performance than that of the traditional method based on the fog deterioration model.
- (社)電子情報通信学会の論文
- 2009-02-01
著者
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OGAWA Takahiro
Graduate School of Information Science and Technology, Hokkaido University
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HASEYAMA Miki
Graduate School of Information Science and Technology, Hokkaido University
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Ogawa Takahiro
Graduate School Of Information Science And Technology Hokkaido University
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Ogawa Takahiro
Hokkaido Univ. Sapporo Jpn
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HIRAMATSU Tomoki
Graduate School of Information Science and Technology, Hokkaido University
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Hiramatsu Tomoki
Graduate School Of Information Science And Technology Hokkaido University
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Haseyama Miki
Graduate School Of Information Science And Technology Hokkaido University
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Haseyama Miki
Graduate School Of Engineering Hokkaido University
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Ogawa Takahiro
Graduate School Of Information Sci. And Technol. Hokkaido Univ.
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