Infrared and Laser Engineering, Volume. 48, Issue 6, 603008(2019)
Review on high resolution and large field of view digital holography
As an interference imaging method, digital holography (DH) can accurately record the phase information of objects, and has the advantages of fast, non-destructive and three-dimensional imaging. It is widely used in the field of biological imaging and materials science. Like other optical imaging methods, DH also faces the problem that the resolution and the field of view(FOV) are mutually constrained, resulting in limited spatial bandwidth product(SBP). To solve this problem, researchers proposed methods such as computational illumination, computational modulation, and computational probing to extend SBP by sacrificing other degrees of freedom(such as time and polarization) of the imaging system. This paper firstly reviews the theoretical analysis of information capacity of an optical system. On this basis, we systematically summarize the high-resolution and large-FOV digital holographic imaging technology in recent years, introduce the principle and implementation of oblique illumination, structured illumination, random modulation illumination, multi-position synthetic aperture and pixel super-resolution method for resolution enhancement, and angle multiplexing method for FOV extension, and make a comparative study. The potential ways to improve resolution and expand FOV are also prospected.
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Zhang Wenhui, Cao Liangcai, Jin Guofan. Review on high resolution and large field of view digital holography[J]. Infrared and Laser Engineering, 2019, 48(6): 603008
Category: 特约专栏-“计算成像技术与应用”
Received: Mar. 13, 2019
Accepted: Jun. 21, 2019
Published Online: Jul. 29, 2019
The Author Email: Wenhui Zhang (zhang-wh16@mails.tsinghua.edu.cn)