Add to BibSonomy
Abstract
In the mid-wave infrared (MIR) band, large detector arrays are extremely costly and technically difficult to be manufactured. Thus, it is difficult to obtain high-resolution images for a conventional MIR camera. Spatial compressive imaging can improve resolution. However, system errors due to misalignment or optical aberrations degrade reconstruction quality significantly. Another common issue for compressive imaging is the slow imaging speed, which is caused by slow measurement collection and reconstruction processes. To deal with the two issues, we use an imaging calibration method to improve reconstruction quality and a sliding window measurement collection strategy plus a reconstruction algorithm accelerated by parallel computing to fasten the speed. We build a prototype of a compressive imaging camera with an angular resolution 1.17 lp/mrad. A four-bar target is used as an object. We reconstruct a moving scene of size $1280 \times 1024$ with a frame rate 20 frames per second.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Mu Qiao, Xuan Liu, and Xin Yuan
Opt. Lett. 46(8) 1888-1891 (2021)
Qun Zhou, Jun Ke, and Edmund Y. Lam
Opt. Lett. 44(7) 1702-1705 (2019)
Yingming Lai, Ruibo Shang, Christian-Yves Côté, Xianglei Liu, Antoine Laramée, François Légaré, Geoffrey P. Luke, and Jinyang Liang
Opt. Lett. 46(7) 1788-1791 (2021)