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Double triangular prism filter based on the optical-readout method in a microelectromechanical infrared imaging system

机译:基于微机电红外成像系统中光读出法的双三角棱镜滤光片

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摘要

This paper presents a novel filtering method with a double triangular prism in an optical-readout ther- mal imaging system. First, the working principle of this system is described in detail, followed by the analysis of sensitivity. Then, infrared images of hands are obtained. On the basis of the analysis, it is concluded that this filtering method, whose noise equivalent temperature difference (NETD) can reach 145 mK, is effective in obtaining high-quality images. Finally, comparing the filtering method with a knife-edge filter, we can draw the conclusion that the filtering method can effectively improve image quality (the value of NETD is less than that of a knife-edge filter).
机译:本文提出了一种在光学读出热成像系统中使用双三角棱镜的新颖滤波方法。首先,详细描述该系统的工作原理,然后进行灵敏度分析。然后,获得手的红外图像。在分析的基础上,得出的结论是,这种滤波方法的噪声等效温差(NETD)可以达到145 mK,对于获取高质量图像是有效的。最后,将滤波方法与刀口滤波器进行比较,可以得出这样的结论:该滤波方法可以有效地提高图像质量(NETD的值小于刀口滤波器的值)。

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