Real-time haze removal by GPU acceleration based on dark channel prior algorithm

	Real-time haze removal by GPU acceleration based on dark channel prior algorithm
	Huan Xu[1,2,3], Wending Xiang[1,2,3], Wenjin Liu[1,2], Zhenghua Guo[1,2,3], Junlong Wu[1,2,3], Ping Yang[1,2], Bing Xu[1,2]
Source Publication	0277-786X
Volume	10462
Pages	104622I
	2017
Language	英语
Abstract	Dark channel prior haze removal algorithm is very simple and effective for single image haze removal, but it’s somehow limited by color distortion in gray areas and expenditure of time. Firstly, aiming at solving color distortions, we propose a modified dark channel prior haze removal algorithm. We correct the transmission of the gray areas by introducing the correction parameter, and the transmission is unchanged when the areas meet the law of dark channel prior. Secondly, to realize real-time haze removal for video surveillance, we use GPU to parallel accelerate and optimize the new algorithm on Compute Unified Device Architecture platform released by NVIDIA. Experiments show that the modified algorithm works effectively in gray areas. At the same time, the processing speed of images with a resolution of 640x480 can reach 37 frames per second after GPU acceleration and can also obtain the real-time haze removal result.
Keyword	haze removal, dark channel prior, GPU, real-time
Conference Name	Proceedings of SPIE: AOPC 2017: Optical Sensing and Imaging Technology and Applications
EI Classification Number	2017-2154
Document Type	会议论文
Identifier	http://ir.ioe.ac.cn/handle/181551/9022
Collection	自适应光学技术研究室（八室）
Affiliation	1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu , Sichuan, China,610209 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, China,610209 3.University of Chinese Academy of Sciences, Beijing, China , 100049
Recommended Citation GB/T 7714	Huan Xu[1,2,3], Wending Xiang[1,2,3], Wenjin Liu[1,2], Zhenghua Guo[1,2,3], Junlong Wu[1,2,3], Ping Yang[1,2], Bing Xu[1,2]. Real-time haze removal by GPU acceleration based on dark channel prior algorithm[C],2017:104622I.

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