全息术
光学
空间光调制器
数字微镜装置
像素
数字全息术
计算机科学
采样(信号处理)
压缩传感
数据采集
计算机视觉
物理
人工智能
滤波器(信号处理)
操作系统
作者
Jiaosheng Li,Tianyun Liu,Bo Wu,Yifei Chen,Qinnan Zhang
标识
DOI:10.1016/j.optlastec.2024.110641
摘要
Fresnel incoherent correlation holography (FINCH) is an incoherent, non-scanning, and high-precision 3D imaging technique, but its area imaging characteristics limit the application of FINCH to some extent. Accordingly, we developed a single-pixel imaging method based on FINCH to realize 3D imaging. We utilized spatial light modulators (SLM) and loaded a measurement matrix on a digital micromirror array (DMD), thereby achieving phase modulation and compressed encoding simultaneously; one-dimensional data acquisition was achieved using a single-pixel camera. Finally, we combined the single-pixel reconstruction and phase-shifting algorithm to achieve incoherent correlation holography imaging with subsampling. The experimental results demonstrated that the proposed method could achieve comparable quality results at a sampling rate of 20 % compared to a 100 % sampling rate, and the method had good noise immunity. This not only avoided the limitations of area array sensors but also enabled high-fidelity imaging with a small data volume, which broadened the scope of research on the application of FINCH in the field of 3D imaging.
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