Tunable-liquid-crystal-filter-based low-light-level color night vision system and its image processing method

Yuan Tao; Han Zhenghao; Li Li; Jin Weiqi; Wang Xia; Wang Hailin; Bai Xiaofeng

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Tunable-liquid-crystal-filter-based low-light-level color night vision system and its image processing method

机译：可调谐液晶滤光片的低光型色夜视系统及其图像处理方法

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We introduce and verify a single-channel time-division filtering low-light-level (LLL) color night vision system (3LCNV). The imaging scheme, comprising a tunable liquid crystal filter, three-generation GaAsP image intensifier, and CMOS camera, achieves LLL color imaging and ensures sensitivity. The image enhancement and color reconstruction algorithm flow suitable for LLL night vision combines overexposure-against white balance, color correction matrix (CCM) color correction, and color image denoising to improve color visibility and reduce color difference and image noise. The proposed night vision system extends the minimum working illuminance to 10(-4) lx and achieves natural and clear color LLL imaging, improving night-time observations. (C) 2019 Optical Society of America

机译：我们介绍并验证单通道时分过滤低灯级（LLL）色夜视系统（3LCNV）。该成像方案包括可调谐液晶滤波器，三代GaASP图像增强器和CMOS相机，实现了LLL彩色成像并确保灵敏度。适用于LLL夜视的图像增强和颜色重建算法流过过度曝光 - 抗白平衡，彩色校正矩阵（CCM）颜色校正，彩色图像去噪，提高颜色可视性，降低色差和图像噪声。所提出的夜视系统将最小工作照度扩展到10（-4）LX，实现自然和清晰的颜色，改善夜间观察。（c）2019年光学学会

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来源
《Applied optics》 |2019年第18期|共9页
作者
Yuan Tao; Han Zhenghao; Li Li; Jin Weiqi; Wang Xia; Wang Hailin; Bai Xiaofeng;
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作者单位

Beijing Inst Technol MOE Key Lab Optoelect Imaging Technol &

Syst Beijing 100081 Peoples R China;

Beijing Inst Technol MOE Key Lab Optoelect Imaging Technol &

Syst Beijing 100081 Peoples R China;

Beijing Inst Technol MOE Key Lab Optoelect Imaging Technol &

Syst Beijing 100081 Peoples R China;

Beijing Inst Technol MOE Key Lab Optoelect Imaging Technol &

Syst Beijing 100081 Peoples R China;

Beijing Inst Technol MOE Key Lab Optoelect Imaging Technol &

Syst Beijing 100081 Peoples R China;

Beijing Inst Technol MOE Key Lab Optoelect Imaging Technol &

Syst Beijing 100081 Peoples R China;

Sci &

Technol Low Light Level Night Vis Lab Xian 710065 Shaanxi Peoples R China;

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正文语种 eng
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Tunable-liquid-crystal-filter-based low-light-level color night vision system and its image processing method

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