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Open AccessArticle

Self-Calibration Method Based on Surface Micromaching of Light Transceiver Focal Plane for Optical Camera

by Jin Li 1,2,3,4,*, Yuan Zhang 5, Si Liu 6 and ZhengJun Wang 1,2,3
Department of Precision Instrument, Tsinghua University, Beijing 100084, China
State Key Laboratory of Precision Measurement Technology and Instruments, Beijing 100084, China
Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Beijing 100084, China
Photonics and Sensors Group, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK
Chuangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
School of Engineering and Information Technology, University of New South Wales, Canberra 2610, Australia
Author to whom correspondence should be addressed.
Academic Editors: Gonzalo Pajares Martinsanz and Prasad S. Thenkabail
Remote Sens. 2016, 8(11), 893;
Received: 23 August 2016 / Revised: 13 October 2016 / Accepted: 21 October 2016 / Published: 29 October 2016
In remote sensing photogrammetric applications, inner orientation parameter (IOP) calibration of remote sensing camera is a prerequisite for determining image position. However, achieving such a calibration without temporal and spatial limitations remains a crucial but unresolved issue to date. The accuracy of IOP calibration methods of a remote sensing camera determines the performance of image positioning. In this paper, we propose a high-accuracy self-calibration method without temporal and spatial limitations for remote sensing cameras. Our method is based on an auto-collimating dichroic filter combined with a surface micromachining (SM) point-source focal plane. The proposed method can autonomously complete IOP calibration without the need of outside reference targets. The SM procedure is used to manufacture a light transceiver focal plane, which integrates with point sources, a splitter, and a complementary metal oxide semiconductor sensor. A dichroic filter is used to fabricate an auto-collimation light reflection element. The dichroic filter, splitter, and SM point-source focal plane are integrated into a camera to perform an integrated self-calibration. Experimental measurements confirm the effectiveness and convenience of the proposed method. Moreover, the method can achieve micrometer-level precision and can satisfactorily complete real-time calibration without temporal or spatial limitations. View Full-Text
Keywords: remote-sensing optical camera; self-calibration; position determination remote-sensing optical camera; self-calibration; position determination
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MDPI and ACS Style

Li, J.; Zhang, Y.; Liu, S.; Wang, Z. Self-Calibration Method Based on Surface Micromaching of Light Transceiver Focal Plane for Optical Camera. Remote Sens. 2016, 8, 893.

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