title: Camera array based light field microscopy.
abstract: This paper proposes a novel approach for high-resolution light field microscopy imaging by using a camera array. In this approach, we apply a two-stage relay system for expanding the aperture plane of the microscope into the size of an imaging lens array, and utilize a sensor array for acquiring different sub-apertures images formed by corresponding imaging lenses. By combining the rectified and synchronized images from 5 × 5 viewpoints with our prototype system, we successfully recovered color light field videos for various fast-moving microscopic specimens with a spatial resolution of 0.79 megapixels at 30 frames per second, corresponding to an unprecedented data throughput of 562.5 MB/s for light field microscopy. We also demonstrated the use of the reported platform for different applications, including post-capture refocusing, phase reconstruction, 3D imaging, and optical metrology.
authors.affiliation: Department of Automation, Tsinghua University, Beijing, 100084, China ; Beijing Key Laboratory of Multi-dimension & Multi-scale Computational Photography (MMCP), Tsinghua University, Beijing, 100084, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Lin
authors.affiliation: Department of Automation, Tsinghua University, Beijing, 100084, China ; Beijing Key Laboratory of Multi-dimension & Multi-scale Computational Photography (MMCP), Tsinghua University, Beijing, 100084, China.
authors.forename: Jiamin
authors.initials: J
authors.lastname: Wu
authors.affiliation: Biomedical Engineering & Electrical Engineering, University of Connecticut, Storrs, Connecticut, 06269, USA.
authors.forename: Guoan
authors.initials: G
authors.lastname: Zheng
authors.affiliation: Department of Automation, Tsinghua University, Beijing, 100084, China ; Beijing Key Laboratory of Multi-dimension & Multi-scale Computational Photography (MMCP), Tsinghua University, Beijing, 100084, China.
authors.forename: Qionghai
authors.initials: Q
authors.lastname: Dai
keywords: (100.3010) Image reconstruction techniques; (110.1758) Computational imaging; (170.0110) Imaging systems; (180.6900) Three-dimensional microscopy