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An FPGA-based real-time nonuniformity correction system for Infrared Focal Plane Arrays

机译:用于红外焦平面阵列的基于FPGA的实时不均匀性校正系统

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Spatial and temporal nonuniformity in Infrared Focal Plane Arrays (IRFPA) severely degrades the quality of images obtained from modern infrared cameras. An efficient implementation of a nonuniformity correction algorithm is therefore necessary in real-time thermal-image visualization systems. This paper presents an FPGA-based implementation of the scene-based Constant Range algorithm for adaptive nonuniformity correction. The system processes an NTSC infrarred video signal at 30fps in real time and consumes only 157 mW of power. The performance of our system is currently limited by the input video frame rate and the external memory bandwidth, but can be readily scaled to a frame rate of more than 250fps.
机译:红外焦平面阵列(IRFPA)中的空间和时间不均匀性严重降低了现代红外相机获得的图像的质量。因此,在实时热图像可视化系统中需要有效地实现不均匀性校正算法。本文介绍了基于FPGA的基于场景的恒定范围算法的实现,适应性不均匀校正。该系统实时地处理30FPS的NTSC Infrarry视频信号,并且仅消耗157 MW的电力。我们的系统的性能目前受输入视频帧速率和外部存储器带宽的限制,但可以容易地缩放到超过250fps的帧速率。

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