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Photon counting range-intensity image strategy in low-light level environments

机译：弱光环境下的光子计数范围-强度图像策略

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摘要

We present a photon counting range-intensity image strategy based on a single-photon detector in low-light level environments. In this Letter, a composite modulation method over the pulse sequence was used for the first time, to the best of our knowledge, which combined pulse-position modulation and pulse-intensity modulation. This composite modulation method could obtain range and intensity of the detected target at the same time. Besides, angle-angle information could be provided from the scanner or detector array. Thus, a range-intensity image of the target became feasible. For demonstrating this photon counting range-intensity image strategy, a proof-of-principle laboratory system was established. In low-light level environments, a range-intensity image of multiple similar targets was obtained successfully with the range accuracy of centimeter level and intensity error of 1%. Compared with the range image, a range-intensity image could better reorganize and identify similar targets.
机译：我们提出了一种在弱光环境下基于单光子探测器的光子计数距离强度图像策略。据我们所知，在这封信中，首次使用了脉冲序列上的复合调制方法，该方法将脉冲位置调制和脉冲强度调制相结合。这种复合调制方法可以同时获得被检测目标的范围和强度。此外，可以从扫描仪或检测器阵列提供角度-角度信息。因此，目标的距离强度图像变得可行。为了演示这种光子计数范围强度图像策略，建立了原理验证实验室系统。在弱光环境下，成功获得多个相似目标的距离强度图像，其距离精度为厘米水平，强度误差为1％。与距离图像相比，距离强度图像可以更好地重组和识别相似目标。

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