Improvement of correlation-based centroiding methods for point source Shack-Hartmann wavefront sensor
文献类型：期刊论文
| 作者 | Li, Xuxu1,2; Li, Xinyang1; wang, Caixia1 |
| 刊名 | OPTICS COMMUNICATIONS
 |
| 出版日期 | 2018-05-15 |
| 卷号 | 411页码:187-194 |
| 关键词 | Shack-Hartmann wavefront sensor Centroiding methods Correlation methods Point source Fast search algorithms |
| ISSN号 | 0030-4018 |
| DOI | 10.1016/j.optcom.2017.11.059 |
| 文献子类 | J |
| 英文摘要 | This paper proposes an efficient approach to decrease the computational costs of correlation-based centroiding methods used for point source Shack-Hartmann wavefront sensors. Four typical similarity functions have been compared, i.e. the absolute difference function (ADF), ADF square (ADF(2)), square difference function (SDF), and cross-correlation function (CCF) using the Gaussian spot model. By combining them with fast search algorithms, such as three-step search (TSS), two-dimensional logarithmic search (TDL), cross search (CS), and orthogonal search (OS), computational costs can be reduced drastically without affecting the accuracy of centroid detection. Specifically, OS reduces calculation consumption by 90%. A comprehensive simulation indicates that CCF exhibits a better performance than other functions under various light-level conditions. Besides, the effectiveness of fast search algorithms has been verified. (C) 2017 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000418646600031 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9333]  |
| 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.The Key Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 2.University of Chinese Academy of Sciences, Beijing; 100039, China |
| 推荐引用方式 GB/T 7714 | Li, Xuxu,Li, Xinyang,wang, Caixia. Improvement of correlation-based centroiding methods for point source Shack-Hartmann wavefront sensor[J]. OPTICS COMMUNICATIONS,2018,411:187-194. |
| APA | Li, Xuxu,Li, Xinyang,&wang, Caixia.(2018).Improvement of correlation-based centroiding methods for point source Shack-Hartmann wavefront sensor.OPTICS COMMUNICATIONS,411,187-194. |
| MLA | Li, Xuxu,et al."Improvement of correlation-based centroiding methods for point source Shack-Hartmann wavefront sensor".OPTICS COMMUNICATIONS 411(2018):187-194. |
入库方式： OAI收割
来源：光电技术研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。