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Proceedings Paper

Design of real-time measurement for optical fiber positioning based on FPGA
Author(s): Huajie Han; Yonggang Gu; Guocheng Liu; Chao Zhai
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Paper Abstract

In order to track the stellar objects in fiber spectroscopic telescopes, measuring the fiber positions is necessary, which is currently unsolved due to the large number of data. In this paper, we propose a novel measure method based on the Field Programmable Gate Arrays (FPGA). Firstly, the fiber spots are obtained from the complicated original images by preprocessing including the median filtering technique to remove the image noise and the correlation operation technique to enhance the fiber spot characteristic. Then, a novel fast connected component labeling technique is employed to acquire the accurate fiber positions. The design of the image processing system is realized by a five-stage pipeline technique based on the FPGA, thus the image processing speed is greatly improved and meanwhile the real-time calculation of the fiber positions is fulfilled.

Paper Details

Date Published: 22 July 2016
PDF: 10 pages
Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99121S (22 July 2016); doi: 10.1117/12.2232418
Show Author Affiliations
Huajie Han, Univ. of Science and Technology of China (China)
Yonggang Gu, Univ. of Science and Technology of China (China)
Guocheng Liu, Univ. of Science and Technology of China (China)
Chao Zhai, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9912:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Ramón Navarro; James H. Burge, Editor(s)

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