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Image contrast model of non-line-of-sight imaging based on laser range-gated imaging

机译：基于激光距离选通成像的非视距成像的图像对比度模型

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摘要

Laser range-gated imaging systems can obtain images of targets hidden around the corner, with an intermediary reflective surface with certain specular reflection characteristics. This imaging mode is called non-line-of-sight imaging. This paper describes a simulation of the target signal illuminance and disturbance radiation on the photosensitive surface of a non-line-of-sight imaging system based on modeling of an intermediary reflective surface. Meanwhile, an image contrast model of a non-line-of-sight imaging system is constructed. Simulation of the image contrast for a laser range-gated imaging system as a non-line-of-sight imaging equipment was carried out by analyzing the effects of varying the target signal illuminance and intermediary reflective surface reflection. Our simulation results show that the reflection characteristics of the intermediary reflective surface have a significant effect on the non-line-of-sight imaging. Although ordinary active laser imaging can realize non-line-of-sight imaging for an intermediary reflective surface with significant specular reflection characteristics, a laser range-gated imaging system is indispensable for non-line-of-sight imaging with commonly used intermediary reflective surfaces without significant specular reflection characteristics. The image contrast model of non-line-of-sight imaging constructed in this paper provides insights into the theoretical analysis and system design, as well as practical application of non-line-of-sight imaging.
机译：激光测距门成像系统可以获得隐藏在拐角处的目标的图像，该目标的中间反射表面具有一定的镜面反射特性。该成像模式称为非视线成像。本文描述了基于中间反射面建模的非视距成像系统感光面上目标信号照度和干扰辐射的仿真。同时，构建了非视距成像系统的图像对比度模型。通过分析改变目标信号照度和中间反射面反射的影响，对作为非视距成像设备的激光测距门成像系统的图像对比度进行了仿真。我们的仿真结果表明，中间反射面的反射特性对非视距成像有重大影响。尽管普通的主动激光成像可以实现具有显着镜面反射特性的中间反射表面的非视距成像，但对于通常使用中间反射表面的非视距成像，激光测距门成像系统必不可少没有明显的镜面反射特性。本文构建的非视距成像的图像对比度模型为非视距成像的理论分析和系统设计以及实际应用提供了见识。

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  • 来源
    《Optical engineering》 |2014年第6期|061610.1-061610.9|共9页
  • 作者

    Kaida Xu; Weiqi Jin; Shenyou Zhao; Jing Liu; Hui Guo; Su Qiu; Dongsheng Wu;

  • 作者单位

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, 100081, China,Beijing Institute of Technology, 5 South Zhongguancun, Street, Haidian District, Beijing, 100081;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, 100081, China,National Key Laboratory of Science and Technology on Low Light Level Night Vision, Shan Xi, Xi'an 710065, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, 100081, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, 100081, China;

    National Key Laboratory of Science and Technology on Low Light Level Night Vision, Shan Xi, Xi'an 710065, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, 100081, China,National Key Laboratory of Science and Technology on Low Light Level Night Vision, Shan Xi, Xi'an 710065, China;

    Beijing Institute of Technology, School of Optoelectronics, Ministry of Education Key Laboratory of Photoelectronic Imaging Technology and System, Beijing, 100081, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    range-gated imaging; non-line-of-sight imaging; laser imaging; image contrast model; intermediary reflective surface;

    机译：距离门控成像非视距成像;激光成像图像对比模型;中间反射面;

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