Plenoptic Spherical Sampling

We present a novel plenoptic sampling scheme that permits an efficient representation of the full light ray field in a space limited by a convex closed surface. We show that a convenient way to sample the light ray field around an observer consists in using a discrete set of perspective imagers with overlapping field-of-views that are distributed on a closed convex surface and looking along the normal to the surface. Taking inspiration from the vision system of flying insects, we choose to constrain the cameras on a sphere of finite radius. Building on spectral analysis we propose a sampling scheme that permits to reconstruct the spherical light field without aliasing. We validate our framework through experiments in a synthetic environment and we show that the our constructive sampling scheme permits to effectively reconstruct the light field without artifacts.

Presented at:
2012 IEEE International Conference on Image Processing, Disney Coronado Springs Resort, Florida, USA, September 30, October 3, 2012

Note: The status of this file is: EPFL only

 Record created 2012-04-18, last modified 2018-03-18

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