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首页> 外文会议>Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XVII >Radiometric dynamic scene processing for uncooled IRFPAs
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Radiometric dynamic scene processing for uncooled IRFPAs

机译：非制冷IRFPA的辐射动态场景处理

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摘要

The widespread use of cameras based on uncooled infrared focal plane arrays (IRFPAs) is largely because of rapid commercialization, impressive miniaturization, and low per-unit cost. As performance improves, long-wave IR cameras using uncooled IRFPAs have replaced more expensive cooled units in many applications. The uncooled units generally have a much higher noise floor. However, if the signal is robust, the uncooled units can make the measurements at lower cost. New cameras with smaller pixels continue to reduce the pixel response time, enabling higher frame rates and more applications. Uncooled IRFPAs are thermal detectors, not charge-based devices, and the implicit pixel response time can greatly affect radiometric accuracy. In addition to the pixel response time, the fidelity of radiometric measurements is affected by target size, pixel fill factor, spectral response, stray light, self-heating, and other variables. If radiometric accuracy is required, it is necessary to quantify the effects of these variables. Calibration methods and measurement compensation techniques are described with emphasis on dynamic scene processing applications.
机译：基于非冷却红外焦平面阵列（IRFPA）的相机的广泛使用很大程度上是由于快速的商业化，令人印象深刻的小型化以及较低的单位成本。随着性能的提高，在许多应用中，使用非冷却IRFPA的长波红外摄像机已取代了更昂贵的冷却单元。未冷却的单元通常具有更高的本底噪声。但是，如果信号很健壮，则未冷却的设备可以以较低的成本进行测量。具有较小像素的新型相机继续减少像素响应时间，从而实现更高的帧速率和更多的应用。未冷却的IRFPA是热探测器，而不是基于电荷的设备，隐式像素响应时间会极大地影响辐射精度。除像素响应时间外，辐射度测量的保真度还受目标大小，像素填充因子，光谱响应，杂散光，自热和其他变量影响。如果需要放射精度，则必须量化这些变量的影响。重点介绍了动态场景处理应用中的校准方法和测量补偿技术。

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