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ECCV
2008
Springer

Unified Frequency Domain Analysis of Lightfield Cameras

14 years 5 months ago
Unified Frequency Domain Analysis of Lightfield Cameras
Abstract. This paper presents a theory that encompasses both "plenoptic" (microlens based) and "heterodyning" (mask based) cameras in a single frequency-domain mathematical formalism. Light-field capture has traditionally been analyzed using spatio-angular representation, with the exception of the frequency-domain "heterodyning" work. In this paper we interpret "heterodyning" as a general theory of multiplexing the radiance in the frequency domain. Using this interpretation, we derive a mathematical theory of recovering the 4D spatial and angular information from the multiplexed 2D frequency representation. The resulting method is applicable to all lightfield cameras, lens-based and mask-based. The generality of our approach suggests new designs for lightfield cameras. We present one such novel lightfield camera, based on a mask outside a conventional camera. Experimental results are presented for all cameras described.
Todor Georgiev, Chintan Intwala, Sevkit Babakan, A
Added 15 Oct 2009
Updated 15 Oct 2009
Type Conference
Year 2008
Where ECCV
Authors Todor Georgiev, Chintan Intwala, Sevkit Babakan, Andrew Lumsdaine
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