Speckle image reconstruction of the adaptive optics solar images

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 自适应光学技术研究室（八室）

	Speckle image reconstruction of the adaptive optics solar images
	Zhong, Libo 1,2,3; Tian, Yu 1,2; Rao, Changhui 1,2
刊名	Optics Express
	2014
卷号	22 期号:23 页码:29249-29259
中文摘要	Speckle image reconstruction, in which the speckle transfer function (STF) is modeled as annular distribution according to the angular dependence of adaptive optics (AO) compensation and the individual STF in each annulus is obtained by the corresponding Fried parameter calculated from the traditional spectral ratio method, is used to restore the solar images corrected by AO system in this paper. The reconstructions of the solar images acquired by a 37-element AO system validate this method and the image quality is improved evidently. Moreover, we found the photometric accuracy of the reconstruction is field dependent due to the influence of AO correction. With the increase of angular separation of the object from the AO lockpoint, the relative improvement becomes approximately more and more effective and tends to identical in the regions far away the central field of view. The simulation results show this phenomenon is mainly due to the disparity of the calculated STF from the real AO STF with the angular dependence.
英文摘要	Speckle image reconstruction, in which the speckle transfer function (STF) is modeled as annular distribution according to the angular dependence of adaptive optics (AO) compensation and the individual STF in each annulus is obtained by the corresponding Fried parameter calculated from the traditional spectral ratio method, is used to restore the solar images corrected by AO system in this paper. The reconstructions of the solar images acquired by a 37-element AO system validate this method and the image quality is improved evidently. Moreover, we found the photometric accuracy of the reconstruction is field dependent due to the influence of AO correction. With the increase of angular separation of the object from the AO lockpoint, the relative improvement becomes approximately more and more effective and tends to identical in the regions far away the central field of view. The simulation results show this phenomenon is mainly due to the disparity of the calculated STF from the real AO STF with the angular dependence.
学科主题	Angular distribution - Image reconstruction - Plastic deformation - Speckle
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000345268500144
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/6383]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, China 2.Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China 3.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Zhong, Libo,Tian, Yu,Rao, Changhui. Speckle image reconstruction of the adaptive optics solar images[J]. Optics Express,2014,22(23):29249-29259.
APA	Zhong, Libo,Tian, Yu,&Rao, Changhui.(2014).Speckle image reconstruction of the adaptive optics solar images.Optics Express,22(23),29249-29259.
MLA	Zhong, Libo,et al."Speckle image reconstruction of the adaptive optics solar images".Optics Express 22.23(2014):29249-29259.