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High-resolution fast mid-wave infrared compressive imaging

机译：高分辨率快速中波红外压缩成像

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摘要

In the mid-wave infrared (MIR) band, large detector arrays are extremely costly and technically difficult to be manufactured. Thus, it is difficult to obtain high-resolution images for a conventional MIR camera. Spatial compressive imaging can improve resolution. However, system errors due to misalignment or optical aberrations degrade reconstruction quality significantly. Another common issue for compressive imaging is the slow imaging speed, which is caused by slow measurement collection and reconstruction processes. To deal with the two issues, we use an imaging calibration method to improve reconstruction quality and a sliding window measurement collection strategy plus a reconstruction algorithm accelerated by parallel computing to fasten the speed. We build a prototype of a compressive imaging camera with an angular resolution 1.17 lp/mrad. A four-bar target is used as an object. We reconstruct a moving scene of size 1280 x 1024 with a frame rate 20 frames per second. (C) 2021 Optical Society of America
机译：在中波红外（MIR）波段，大型探测器阵列极为昂贵，而且在技术上很难制造。因此，传统的MIR相机很难获得高分辨率图像。空间压缩成像可以提高分辨率。然而，由于失调或光学像差导致的系统误差会显著降低重建质量。压缩成像的另一个常见问题是成像速度慢，这是由测量采集和重建过程缓慢引起的。为了解决这两个问题，我们使用了一种成像校准方法来提高重建质量，并使用滑动窗口测量收集策略和一种通过并行计算加速的重建算法来加快重建速度。我们构建了一个角度分辨率为1.17 lp/mrad的压缩成像相机原型。四杆目标用作对象。我们重建了一个1280x1024大小的移动场景，帧速率为每秒20帧。（2021）美国光学学会

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  • 来源
    《Optics Letters》 |2021年第10期|共4页
  • 作者

    Zhang Linxia; Ke Jun; Chi Sheng; Hao Xiaowen; Yang Tong; Cheng Dewen;

  • 作者单位

    Beijing Inst Technol Sch Opt &

    Photon Beijing 100081 Peoples R China;

    Beijing Inst Technol Sch Opt &

    Photon Beijing 100081 Peoples R China;

    Beijing Inst Technol Sch Opt &

    Photon Beijing 100081 Peoples R China;

    Beijing Inst Technol Sch Opt &

    Photon Beijing 100081 Peoples R China;

    Beijing Inst Technol Sch Opt &

    Photon Beijing 100081 Peoples R China;

    Beijing Inst Technol Sch Opt &

    Photon Beijing 100081 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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