9 July 2018 The improvement of LAMOST fiber view camera metrology system fiber position recognition algorithm
Author Affiliations +
Abstract
The LAMOST telescope has been officially observed for the past seven years since 2009, and many parts of the telescope are currently being upgraded. The fiber positioning unit of the focal plane instrument is also planned to be upgraded again. In order to ensure a higher positioning accuracy of the fiber positioning unit, the newly developed fiber positioning system adopts a closed-loop camera to photograph the unit fiber position in real time, and feeds back to the control system to implement multiple positioning to improve the positioning accuracy. This article focuses on an improved optical center of gravity algorithm for optical fiber location based on the optical center of gravity algorithm. The factors affecting the position measurement of the optical fiber spot are optimized, and the recognition accuracy of the spot position under different conditions is improved.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kang Zhao, Kang Zhao, Zhigang Liu, Zhigang Liu, Hongzhuan Hu, Hongzhuan Hu, Jianping Wang, Jianping Wang, Chao Zhai, Chao Zhai, Zengxiang Zhou, Zengxiang Zhou, "The improvement of LAMOST fiber view camera metrology system fiber position recognition algorithm", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 1070277 (9 July 2018); doi: 10.1117/12.2309750; https://doi.org/10.1117/12.2309750
PROCEEDINGS
12 PAGES


SHARE
Back to Top