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Proceedings Paper

The compensation effects of temperature variation in long-term videometric measurement
Author(s): Zhichao Chao; Guangwen Jiang; Sihua Fu; Qifeng Yu
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Paper Abstract

Temperature variations will affect the geometric and optical characteristics of the camera and lens in the videometric system, especially when the optical systems are working in a long period. The paper presents an analysis of the image drift caused by temperature variations and the corresponding temperature compensation method. Firstly, image drift model is established based on the pinhole camera model; then two simplified models are introduced by analyzing the coupling relations between the variations of camera parameters and temperature; furthermore, influence of temperature changes on camera parameters were modeled and calibrated; pose estimation experiments as well as temperature compensations are also conducted in deformation measurements, and the results prove the feasibility and efficiency of the proposed models.

Paper Details

Date Published: 22 August 2015
PDF: 8 pages
Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 96560I (22 August 2015); doi: 10.1117/12.2196662
Show Author Affiliations
Zhichao Chao, Chongqing Communication College (China)
Guangwen Jiang, National Univ. of Defense Technology (China)
Sihua Fu, National Univ. of Defense Technology (China)
Qifeng Yu, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 9656:
International Symposium on Photonics and Optoelectronics 2015
Zhiping Zhou, Editor(s)

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