Dark background correction of the infrared detector for hyperspectral remote sensing application

doi:10.1016/j.sna.2022.114088

CIOMP OpenIR

	Dark background correction of the infrared detector for hyperspectral remote sensing application
	H. Zhang, C. Li, H. Xue, C. Lin and Y. Zheng
	2023
发表期刊	Sensors and Actuators A: Physical
ISSN	09244247
卷号	349
摘要	The dark current is one of the main factors that influences the performance of infrared photodetectors, as it restricts the integration time and decreases the signal-to-noise ratio of an imaging system. Especially for hyperspectral remote sensing applications, the dark background occupies most of the dynamic range, owing to the narrow bandwidth and weak incident energy of each spectral channel. A general method for suppressing the dark current is to keep the optical system and the focal plane array (FPA) at an extremely low temperature (less than 30 K). However, maintaining a low temperature consumes a large amount of energy. Here, we present one correction method to eliminate the influence of the dark current on image quality. According to the real-time FPA temperature, the instantaneous dark background of each pixel is calculated and subtracted from the original image. Moreover, multiframe superposition is employed to improve the performance of the infrared hyperspectral imager. Based on this correction method, the noise equivalent temperature difference (NETD) in the imaging system is better than 0.3 K after 32 frames are merged. © 2022 Elsevier B.V.
DOI	10.1016/j.sna.2022.114088
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68158
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Zhang, C. Li, H. Xue, C. Lin and Y. Zheng. Dark background correction of the infrared detector for hyperspectral remote sensing application[J]. Sensors and Actuators A: Physical,2023,349.
APA	H. Zhang, C. Li, H. Xue, C. Lin and Y. Zheng.(2023).Dark background correction of the infrared detector for hyperspectral remote sensing application.Sensors and Actuators A: Physical,349.
MLA	H. Zhang, C. Li, H. Xue, C. Lin and Y. Zheng."Dark background correction of the infrared detector for hyperspectral remote sensing application".Sensors and Actuators A: Physical 349(2023).

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