摘要
Using compressive sensing for imaging has many applications, and it is an important branch of computational imaging.In this Letter, freeform surfaces are introduced in the hardware optical system design of a compressive sensing imager. The system works under the medium wave infrared band and realizes a 16× compression with a field-of-view of 7.5°× 6°. Good imaging performance is achieved in both the entire system and the freeform objective optics. Compared with the system using all spherical lenses, the volume of the freeform system is about 1/3 smaller, and the total transmittance is about 56%higher, which shows the benefits of using freeform surfaces for compressive sensing and computational imaging.
作者
Dewen Cheng
Hailong Chen
Tong Yang
Jun Ke
Yang Li
Yongtian Wang
程德文;陈海龙;杨通;柯钧;李阳;王涌天(School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Beijing Engineering Research Center of Mixed Reality and Advanced Display,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Beijing Key Laboratory of Advanced Optical Remote Sensing Technology,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China)
基金
This work was supported by the National Key Research and Development Program of China(No.2017YFA0701200)
National Natural Science Foundation of China(No.61805012)
Young Elite Scientist Sponsorship Program by CAST(No.2019QNRC001)。
