The compensation effects of temperature variation in long-term videometric measurement

Zhichao Chao; Guangwen Jiang; Sihua Fu; Qifeng Yu

doi:10.1117/12.2196662

22 August 2015 The compensation effects of temperature variation in long-term videometric measurement

Zhichao Chao, Guangwen Jiang, Sihua Fu, Qifeng Yu

Proceedings Volume 9656, International Symposium on Photonics and Optoelectronics 2015; 96560I (2015) https://doi.org/10.1117/12.2196662
Event: International Symposium on Photonics and Optics, 2015, Shanghai, China

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.

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Zhichao Chao, Guangwen Jiang, Sihua Fu, and Qifeng Yu "The compensation effects of temperature variation in long-term videometric measurement", Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 96560I (22 August 2015); https://doi.org/10.1117/12.2196662

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KEYWORDS

Cameras

Temperature metrology

3D modeling

Imaging systems

Systems modeling

3D image processing

Image analysis

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