Laser & Optoelectronics Progress, Volume. 61, Issue 2, 0211030(2024)
Review of Optical Pre-Sensor Computing Technology and Its Satellite Remote Sensing Applications (Invited)
Optical pre-sensor computing is a technique involving information computation and processing in the optical domain at the front end of photoelectric sensors. This encompasses computation paradigms such as encoding compression and all-optical intelligent inference. It exhibits significant characteristics, such as computation during optical transmission and structure-function correlation, making it widely applicable in the field of satellite remote sensing. This paper introduces optical field modulation devices employed in pre-sensor computing, such as digital micromirror device (DMD), liquid crystal spatial light modulator (LC-SLM), diffractive optical element (DOE), and metasurface. Subsequently, we systematically review the pertinent technological advancements in pre-sensor encoding compression and all-optical intelligent inference. Finally, the application pathways and future development trends of optical pre-sensor computing in the field of satellite remote sensing are discussed.
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Tianyu Li, Guoqing Wang, Wei Li, Hongwei Chen, Xun Liu, Zhibin Wang, Shaochong Liu, Yanxin Cai. Review of Optical Pre-Sensor Computing Technology and Its Satellite Remote Sensing Applications (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(2): 0211030
Category: Imaging Systems
Received: Nov. 15, 2023
Accepted: Dec. 13, 2023
Published Online: Feb. 6, 2024
The Author Email: Wang Guoqing (gqwang0420@uestc.edu.cn), Li Wei (wei_li_bj@163.com), Chen Hongwei (chenhw@tsinghua.edu.cn)