Real-time image processing in TDICCD space mosaic camera

	Real-time image processing in TDICCD space mosaic camera
	Ning Y.-H.; Guo Y.-F.
	2014
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	ISBN/1004924X
卷号	22 期号:2 页码:508-516
摘要	A real-time image processing method based on a Field Programming Gate Array(FPGA) was proposed for Time Delay Integral(TDI)CCD space mosaic camera to improve its imaging quality and visual effect. Firstly, the TDICCD imaging system was corrected in a non-uniformity mode by a pixel level, by which the fixed-pattern noise and dark current noise were eliminated. Then, an adaptive median filter based on the inline max-min values was proposed to eliminate the random noise and pulse noise. Furthermore, an image after denoising was enhanced in the TDICCD image. By extracting the low-frequency part and the high frequency part of the image, the detail adjustment and contrast enhancement of the image were implemented. Finally, a linear stretching method based on image line data divided was proposed to improve the dynamic range of the real-time imaging system. Moreover, a real-time image processing method for the TDICCD space mosaic camera based on FPGA was designed, and the synthesized resources, algorithm errors and reliability in the FPGA were analyzed. The experimental results indicate that the average SNR of the imaging system has been improved from 48 db to 52 db, and the non-uniformity decreased from 3.41% to 1.73% within a TDICCD. The image contrast is enhanced greatly and the dynamic range is prompted by 6% in the self define criterion.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44316
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Ning Y.-H.,Guo Y.-F.. Real-time image processing in TDICCD space mosaic camera[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(2):508-516.
APA	Ning Y.-H.,&Guo Y.-F..(2014).Real-time image processing in TDICCD space mosaic camera.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(2),508-516.
MLA	Ning Y.-H.,et al."Real-time image processing in TDICCD space mosaic camera".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.2(2014):508-516.

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