Analysis of the wavefront reconstruction error of the spot location algorithms for the Shack-Hartmann wavefront sensor

doi:10.1117/1.OE.59.4.043103

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）

	Analysis of the wavefront reconstruction error of the spot location algorithms for the Shack-Hartmann wavefront sensor
	Wei, Ping 1,2,3,4; Li, Xinyang 3,4; Luo, Xi 3,4; Li, Jianfeng 2
刊名	Optical Engineering
	2020-04-01
卷号	59 期号:4 页码:043103-1-14
ISSN号	0091-3286
DOI	10.1117/1.OE.59.4.043103
文献子类	期刊论文
英文摘要	Spot location algorithms greatly influence the wavefront measurement error of the Shack-Hartmann wavefront sensor. Based on numerical simulations and experiments, we compare the wavefront reconstruction error of several spot location algorithms under different signal-to-noise ratio (SNR) conditions. We solve the problem of how to select the most suitable spot location algorithm and optimal parameters under different SNR conditions, which mimic the realistic working environment of the adaptive optics system changes. We find the optimal threshold and optimal window setting rules of the center of gravity (COG), intensity weighted centroiding, and weighted center of gravity (WCOG) algorithms. The correctness of our recommendation of spot location algorithms under different SNR conditions is supported by numerical simulations and experiments. We find that when the SNR is extremely low, that is the SNR is lower than 2, the cross-correlation algorithm and the thresholding WCOG algorithm are the best choices. When the SNR is moderately low, that is the SNR ranges from 2 to 10, the best choice is the thresholding WCOG algorithm. When the SNR is high, that is, the SNR is higher than 10, the simple algorithm of thresholding COG is the best choice. © 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
语种	英语
WOS记录号	WOS:000542627000014
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10096]
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.University of Chinese, Academy of Sciences, Beijing, China 2.University of Electronic Science and Technology of China, School of Optoelectronic Science and Engineering, Chengdu, Sichuan, China; 3.Chinese Academy of Sciences, Key Laboratory on Adaptive Optics, Chengdu, Sichuan, China; 4.Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, Sichuan, China;
推荐引用方式 GB/T 7714	Wei, Ping,Li, Xinyang,Luo, Xi,et al. Analysis of the wavefront reconstruction error of the spot location algorithms for the Shack-Hartmann wavefront sensor[J]. Optical Engineering,2020,59(4):043103-1-14.
APA	Wei, Ping,Li, Xinyang,Luo, Xi,&Li, Jianfeng.(2020).Analysis of the wavefront reconstruction error of the spot location algorithms for the Shack-Hartmann wavefront sensor.Optical Engineering,59(4),043103-1-14.
MLA	Wei, Ping,et al."Analysis of the wavefront reconstruction error of the spot location algorithms for the Shack-Hartmann wavefront sensor".Optical Engineering 59.4(2020):043103-1-14.