Instrumentation, Techniques, and Measurement

Algorithm for camera parameter adjustment in multicamera systems

[+] Author Affiliations
Jianran Liu, Zaojun Fang, Kun Zhang, Min Tan

Chinese Academy of Sciences, Institute of Automation, State Key Laboratory of Management and Control for Complex Systems, 95 Zhongguancun East Road, Beijing 100190, China

Opt. Eng. 54(10), 104108 (Oct 15, 2015). doi:10.1117/1.OE.54.10.104108
History: Received July 6, 2015; Accepted September 18, 2015
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Abstract.  Multicamera systems have many advantages and are widely used. However, many situations require camera parameters that are more accurate than those that are currently available. A new algorithm is proposed to improve the accuracy and consistency of these systems by adjusting the camera parameters. The algorithm assumes that the distribution of the measured point positions follows the Gaussian mixture model. Based on this model, point positions in space are estimated, and new camera parameters are computed from the estimation. A metric is defined to describe the difference between the newly computed and precalibrated camera parameters, following which the parameters are adjusted by minimizing this difference. Finally, the validity of the algorithm is confirmed by conducting experiments. Two indicators that describe the accuracy and consistency are defined and applied to analyze the experimental data.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Topics

Cameras

Citation

Jianran Liu ; Zaojun Fang ; Kun Zhang and Min Tan
"Algorithm for camera parameter adjustment in multicamera systems", Opt. Eng. 54(10), 104108 (Oct 15, 2015). ; http://dx.doi.org/10.1117/1.OE.54.10.104108


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