Parameterized Modeling of Spatially Varying PSF for Lens Aberration and Defocus

	Parameterized Modeling of Spatially Varying PSF for Lens Aberration and Defocus
	Wang, C.; J. Chen; H. G. Jia; B. S. Shi; R. F. Zhu; Q. Wei; L. Y. Yu and M. D. Ge
	2015
发表期刊	Journal of the Optical Society of Korea
卷号	19 期号:2 页码:136-143
摘要	Image deblurring by a deconvolution method requires accurate knowledge of the blur kernel. Existing point spread function (PSF) models in the literature corresponding to lens aberrations and defocus are either parameterized and spatially invariant or spatially varying but discretely defined. In this paper, a parameterized model is developed and presented for a PSF which is spatially varying due to lens aberrations and defocus in an imaging system. The model is established from the Seidel third-order aberration coefficient and the Hu moment. A skew normal Gauss model is selected for parameterized PSF geometry structure. The accuracy of the model is demonstrated with simulations and measurements for a defocused infrared camera and a single spherical lens digital camera. Compared with optical software Code V, the visual results of two optical systems validate our analysis and proposed method in size, shape and direction. Quantitative evaluation results reveal the excellent accuracy of the blur kernel model.
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55373
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang, C.,J. Chen,H. G. Jia,et al. Parameterized Modeling of Spatially Varying PSF for Lens Aberration and Defocus[J]. Journal of the Optical Society of Korea,2015,19(2):136-143.
APA	Wang, C..,J. Chen.,H. G. Jia.,B. S. Shi.,R. F. Zhu.,...&L. Y. Yu and M. D. Ge.(2015).Parameterized Modeling of Spatially Varying PSF for Lens Aberration and Defocus.Journal of the Optical Society of Korea,19(2),136-143.
MLA	Wang, C.,et al."Parameterized Modeling of Spatially Varying PSF for Lens Aberration and Defocus".Journal of the Optical Society of Korea 19.2(2015):136-143.

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