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Proceedings Paper

A high-resolution lightfield camera with dual-mask design
Author(s): Zhimin Xu; Edmund Y. Lam
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Paper Abstract

In this paper, we present a new design for lightfield acquisition. In comparison with the conventional lightfield acquisition techniques, the key characteristic of our system is its ability to achieve a higher resolution lightfield given a fixed sensor. In particular, the system architecture employs two attenuation masks respectively positioned at the aperture stop and the optical path of the camera, so that the four-dimensional (4D) lightfield spectrum is encoded and sampled by a two-dimensional (2D) camera sensor in a single snapshot. In post-processing, by exploiting the coherence embedded in a lightfield, we are able to retrieve the desired 4D lightfield of a higher resolution using inverse imaging. We demonstrate the performance of our proposed method with simulations based on the actual lightfield dataset.

Paper Details

Date Published: 15 October 2012
PDF: 11 pages
Proc. SPIE 8500, Image Reconstruction from Incomplete Data VII, 85000U (15 October 2012); doi: 10.1117/12.940766
Show Author Affiliations
Zhimin Xu, The Univ. of Hong Kong (Hong Kong, China)
Edmund Y. Lam, The Univ. of Hong Kong (Hong Kong, China)

Published in SPIE Proceedings Vol. 8500:
Image Reconstruction from Incomplete Data VII
Philip J. Bones; Michael A. Fiddy; Rick P. Millane, Editor(s)

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