A high-resolution lightfield camera with dual-mask design

Zhimin Xu; Edmund Y. Lam

doi:10.1117/12.940766

15 October 2012 A high-resolution lightfield camera with dual-mask design

Zhimin Xu, Edmund Y. Lam

Proceedings Volume 8500, Image Reconstruction from Incomplete Data VII; 85000U (2012) https://doi.org/10.1117/12.940766
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

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.

Citation Download Citation

Zhimin Xu and Edmund Y. Lam "A high-resolution lightfield camera with dual-mask design", Proc. SPIE 8500, Image Reconstruction from Incomplete Data VII, 85000U (15 October 2012); https://doi.org/10.1117/12.940766

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