Single-pixel imaging (SPI) can capture 2D images of the target with only a nonpixelated detector, showing promising application potential in nonvisible spectral imaging, low-photon imaging, lidar, and other extreme imaging fields. However, the imaging mechanism of traditional SPI makes it difficult to achieve high imaging speed, which is a primary barrier for its widespread application. To address this issue, in this work, we propose and demonstrate a novel high-speed 2D and 3D imaging scheme based on traditional SPI, termed time-resolved single-pixel imaging (TRSPI). Previous SPI works mainly utilize correlation between a stable target and iterative illumination masks to reconstruct a single image. In TRSPI, by further exploiting correlation information between a dynamic scene and every static mask, we can reconstruct a series of time-varying images of the dynamic scene, given the dynamic scene is repetitive or reproducible. Experimentally, we conducted 2D and 3D imaging on a rotating chopper with a speed of 4800 revolutions per minute (rpm), and imaging speeds up to 2,000,000 fps. It is believed that this technology not only opens up a novel application direction for SPI, but also will provide a powerful solution for high-speed imaging.

Wenjie Jiang;Yongkai Yin;Junpeng Jiao;Xian Zhao;Baoqing Sun

School of Information Science and Engineering, Shandong University, Qingdao 266237, China;Key Laboratory of Laser & Infrared System, Ministry of Education, Qingdao 266237, China;Center for Optics Research and Engineering, Shandong University, Qingdao 266237, China

光子学研究（英文）

[1]Wenjie Jiang;Yongkai Yin;Junpeng Jiao;Xian Zhao;Baoqing Sun-.2,000,000 fps 2D and 3D imaging of periodic or reproducible scenes with single-pixel detectors)[J].光子学研究（英文）,2022(09):2157

nonpixelated,nonvisible,TRSPI

fps,2D,imaging,periodic,reproducible,scenes,single,detectors,Single,can,capture,images,target,only,showing,promising,application,potential,spectral,low,photon,lidar,other,extreme,fields,However,mechanism,traditional,makes,difficult,achieve,high,which,primary,barrier,its,widespread,To,address,this,issue,propose,demonstrate,novel,scheme,termed,resolved,Previous,works,mainly,utilize,correlation,between,stable,iterative,illumination,masks,reconstruct,In,by,further,exploiting,information,dynamic,every,static,series,varying,given,repetitive,Experimentally,conducted,rotating,chopper,revolutions,minute,rpm,speeds,up,It,believed,that,technology,not,opens,direction,but,also,will,provide,powerful,solution

0.52617