Real-time processing of image restoration for space camera

	Real-time processing of image restoration for space camera
	Fu, T.-J.; L.-G. Zhang; W.-H. Wang; Y. Zhang and J.-Y. Ren
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:4 页码:1122-1130
摘要	To enhance the imaging performance for a space camera, a real-time image restoration method was proposed based on the efficient extraction of Point Spread Function (PSF). The key issues of real-time image restoration were analyzed based on typical image restoration methods. A deconvolution operator was given by combining the PSF with the typical image restoration methods. Then, the real-time recovery processing was carried out in a spatial domain by using a Field Programming Gate Array(FPGA) as the core device. The verified experiments on the remote sensing image data from the space camera were performed on a hardware platform and the restoration results by proposed method were compared with those by typical image restoration methods. The comparative results show that the gray mean gradient of the image from one space camera with 12 000 pixel CCD chip has improved from 3.7887 to 8.2296 and the Laplacian from 15.4567 to 43.9075, which achieves the same performance as that of the typical image restoration methods. The image processing delay is 1.9 ms when the deconvolution operator size is 19 pixel19 pixel, and the Modulation Transfer Function(MTF) is increased from 0.1 to 0.23 at the Nyqyist frequency. These data demonstrate that the imaging performance within the whole space camera system is significantly improved by the real-time image restoration system. , 2015, Chinese Academy of Sciences. 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/181722/56028
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Fu, T.-J.,L.-G. Zhang,W.-H. Wang,et al. Real-time processing of image restoration for space camera[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(4):1122-1130.
APA	Fu, T.-J.,L.-G. Zhang,W.-H. Wang,&Y. Zhang and J.-Y. Ren.(2015).Real-time processing of image restoration for space camera.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(4),1122-1130.
MLA	Fu, T.-J.,et al."Real-time processing of image restoration for space camera".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.4(2015):1122-1130.

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空间相机图像复原的实时处理.caj（488KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载