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Proceedings Paper

Scene simulation for LLL night vision system based on daytime image
Author(s): Yongjian Zhu; Qian Chen
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Paper Abstract

On the basis of optoelectronic imaging technique, the imaging process of low light level (LLL) night vision system is analyzed. The characteristics of LLL image are discussed in aspects of imaging process and gray level distribution. A imaging modal of ICCD LLL imaging system and a mathematics model to convert daytime image to LLL image are constructed by using spectral integral. The imaging model is composed of scenery reflectance sub-system, atmosphere transmission sub-system and ICCD camera sub-system. Because every scenery has different spectral reflectivity, so do image segmentation first. After abstracting different scenery from daytime image and assigning them their corresponding spectral reflectivity, do integral calculations using the constructed imaging model. Thus the LLL image is generated after gray calculating and the scene simulation of LLL imaging system based on day image is implemented. The experiment results show that the constructed LLL imaging model is effective and the scene simulation is successful. The original daytime image and the generated LLL image are also presented in this paper.

Paper Details

Date Published: 2 February 2006
PDF: 7 pages
Proc. SPIE 6031, ICO20: Remote Sensing and Infrared Devices and Systems, 60310E (2 February 2006); doi: 10.1117/12.667922
Show Author Affiliations
Yongjian Zhu, Nanjing Univ. of Science and Technology (China)
Qian Chen, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6031:
ICO20: Remote Sensing and Infrared Devices and Systems
Jingshan Jiang; O. Yu. Nosach; Jiaqi Wang, Editor(s)

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