High dynamic range imaging based on DMD

	High dynamic range imaging based on DMD
	He, S.-W.; Y.-J. Wang; H.-H. Sun; L. Zhang and P. Wu
	2015
发表期刊	Guangzi Xuebao/Acta Photonica Sinica
卷号	44 期号:8
摘要	In order to observe high dynamic scene effectively and in real time, an imaging system based on digital micromirror device as a spatial light modulator was designed. The capability of digital micromirror device was improved in increasing the dynamic range of imaging system by improving the driving timing of digital micromirror device. To tackle the distortion error of the optical system, polynomial fitting was employed to acquire the mapping relationship between digital micromirror device and imaging sensor. Finally, in order to resolve the problem of poor visuality when using ordinary light adjusting algorithm, tone mapping operator was introduced to generate a light adjusting template and image with better visuality was acquired. The results indicate that the dynamic range of traditional imaging system can be increased by 66 dB under the condition of 10 frames per second and the total dynamic range of the imaging system reachs 126 dB. Morever, the precision of using digital micromirror device to control imaging sensor is up to 0.69 pixel, bright part and dark part in a high dynamic range scene can be displayed simultaneously in one image after light adjusting and the entropy of image collected after light adjusting inreased. The imaging system meet the requirement of real time observation in high dynamic range scene. , 2015, Chinese Optical Society. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56231
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	He, S.-W.,Y.-J. Wang,H.-H. Sun,et al. High dynamic range imaging based on DMD[J]. Guangzi Xuebao/Acta Photonica Sinica,2015,44(8).
APA	He, S.-W.,Y.-J. Wang,H.-H. Sun,&L. Zhang and P. Wu.(2015).High dynamic range imaging based on DMD.Guangzi Xuebao/Acta Photonica Sinica,44(8).
MLA	He, S.-W.,et al."High dynamic range imaging based on DMD".Guangzi Xuebao/Acta Photonica Sinica 44.8(2015).

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