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Open AccessArticle

Calibration Technique of a Curved Zoom Compound Eye Imaging System

by Fengli Liu 1,2,*, Xiaolei Diao 1,2, Lun Li 2 and Yongping Hao 2
1
Department of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China
2
Technology Center of CAD/CAM, Shenyang Ligong University, Shenyang 110159, China
*
Author to whom correspondence should be addressed.
Micromachines 2019, 10(11), 776; https://doi.org/10.3390/mi10110776
Received: 27 September 2019 / Revised: 4 November 2019 / Accepted: 11 November 2019 / Published: 13 November 2019
(This article belongs to the Special Issue MOEMS: Micro-Optical MEMS)
A calibration method for the designed curved zoom compound eye is studied in order to achieve detection and positioning of spatial objects. The structure of the curved zoom compound eye is introduced. A calibration test platform is designed and built based on the image characteristics of the compound eye, which can be constructed in the large field view for the calibration target. The spot images are obtained through image processing. The center of the spot is calculated by Gauss fitting method. This method is highly simple and intuitive, and it can be used in a zoom surface compound eye without any complex procedures. Finally, the corresponding relationship between the spot center coordinates and the incident light vector of the corresponding sub-eye is established, and the calibration of the multi vision positioning system is completed. View Full-Text
Keywords: calibration; curved zoom compound eye; Gauss fitting method; optical imaging calibration; curved zoom compound eye; Gauss fitting method; optical imaging
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Liu, F.; Diao, X.; Li, L.; Hao, Y. Calibration Technique of a Curved Zoom Compound Eye Imaging System. Micromachines 2019, 10, 776.

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