Real-time three-dimensional infrared imaging using fringe projection profilometry

Real-time three-dimensional infrared imaging using fringe projection profilometry

Chao Zuo, Qian Chen, Shijie Feng, Guohua Gu and Anand Asundi

Jiangsu Key Laboratory of Spectral Imaging & Intelligent Sense,

Nanjing University of Science and Technology, Nanjing, Jiangsu Province 210094, China

Abstract

Infrared thermography determines the surface temperature of an object or human body. It is a promising imaging technology for medical and biological observations due to its contactless and completely noninvasive properties. However, traditional two-dimensional (2D) infrared thermography cannot retain the spatial information, and thus provides only qualitative diagnosis information. A novel real-time three dimensional (3D) infrared imaging system which takes full advantages of high-speed, high-quality, high sensitivity, and low-cost in 3D thermograph is presented. We demonstrate the real-time 3D thermal imaging at the speed of 24 frames per second (fps), with resolution of 640 × 480 points. Experimental results demonstrate quantitatively measurement of temperature distribution of 3D surfaces in real-time is realized with this system.

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Citations

Zuo, C., Chen, Q., Feng, S., Gu, G., & Asundi, A. (2013). Real-time three-dimensional infrared imaging using fringe projection profilometry.

Results

Fig. 1. 3D thermograms reconstruction result. (a–e) Five images of tested objects with deformed fringe patterns captured by the CCD; (f) 2D thermal image; (g–j) reconstructed 3D thermograms viewed from different angles.

Fig. 2. Real-time 3D thermal imaging results of a moving hand and a stationary power box.

Methods

Fig. 1. (a) The real-time 3D thermal imaging system and (b) its schematic diagram.

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Contact

Chao Zuo

Associate professor at the school of Electronic and Optical Engineering

Email: surpasszuo@163.com

Nanjing University of Science and Technology, Jiangsu Province (210094), P.R.China

Qian Chen

Dean of the school of Electronic and Optical Engineering

Email: chenqian@njust.edu.cn

Nanjing University of Science and Technology, Jiangsu Province (210094), P.R.China

Shijie Feng

Ph.D. Candidate of NJUST

Email:geniusshijie@163.com ( or 311040574@njust.edu.cn)

Nanjing University of Science and Technology, Jiangsu Province (210094), P.R.China