Guzmán Felipe, Meza Pablo, Vera Esteban
Opt Express. 2021 Apr 26;29(9):12787-12800. doi: 10.1364/OE.418892.
In this work, we present a novel camera array that exploits the electronic rolling shutter to achieve high speed compressive temporal imaging. Traditional compressive temporal imaging makes use of mechanical coded apertures, despite implementation and calibration challenges. Instead, we propose to model the inherent spatial and temporal coding provided by the distinctive rolling shutter sampling from each camera of the array as a compressive temporal imaging system matrix. Thus, we can recover a high speed video from a set of snapshots from the camera array by using compressive sensing reconstruction algorithms. We present both simulation and experimental results for a 4-camera array system with different orientation angles, reconstructing up to 56 high-speed sub-frames from a set of simultaneously triggered snapshots from the array, achieving a compression rate of up to 14X.
在这项工作中，我们展示了一种新型相机阵列，它利用电子滚动快门来实现高速压缩时域成像。传统的压缩时域成像使用机械编码孔径，尽管存在实现和校准方面的挑战。相反，我们建议将阵列中每个相机独特的滚动快门采样所提供的固有空间和时间编码建模为压缩时域成像系统矩阵。因此，我们可以通过使用压缩感知重建算法从相机阵列的一组快照中恢复高速视频。我们给出了具有不同取向角的四相机阵列系统的仿真和实验结果，从阵列的一组同时触发的快照中重建多达56个高速子帧，实现了高达14倍的压缩率。
