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  • 學位論文

基於縮減係數之雨水去除

Rain Streak Removal Based on Shrinkage Map

指導教授 : 顏淑惠

摘要


使用雨水去除技術可以幫助許多戶外視覺應用,使得雨水影像變清晰。在本文中,我們提供了一種自動從雨水影像中找出雨水模板的方法,並利用這些模板更新雨水字典,使雨水字典能學習該張影像的雨水特性。我們也說明如何判別一個區塊是否為雨水區塊的可能性,並依據判別結果修改縮減係數。實驗結果顯示,與現有的方法相比,我們的方法顯示出更好的結果

關鍵字

雨水去除 縮減係數

並列摘要


Using rain removal technique to make a raining image clean can help in many outdoor visual applications. In this paper we present an automatic way to choose rain templates from a given raining image. With these templates, rain dictionary is modified. We also illustrate how to determine the likelihood of a patch being a raining patch. Shrinkage coefficient is modified according to such likelihood. Our method is shown to have better results comparing to existing similar methods.

並列關鍵字

Rain Steak Removal Shrinkage Map

參考文獻


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[4] N. Brewer and N. Liu. Using the shape characteristics of rain to identify and remove rain from video. Lecture Notes Comput. Sci., 2008.
[5] P. C. Barnum, S. Narasimhan, and T. Kanade. Analysis of rain and snow in frequency space. Int. J. Computer Vision, 2010.
[6] J. Bossu, N. Hauti`ere, and J.-P. Tarel. Rain or snow detection in image sequences through use of a histogram of orientation of streaks. Int’l. J. Computer Vision, 2011
[7] S. You, R. T. Tan, R. Kawakami, and K. Ikeuchi. Adherent raindrop detection and removal in video. In CVPR, 2013.

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