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.
Cite
Text
Georgiev et al. "Unified Frequency Domain Analysis of Lightfield Cameras." European Conference on Computer Vision, 2008. doi:10.1007/978-3-540-88690-7_17Markdown
[Georgiev et al. "Unified Frequency Domain Analysis of Lightfield Cameras." European Conference on Computer Vision, 2008.](https://mlanthology.org/eccv/2008/georgiev2008eccv-unified/) doi:10.1007/978-3-540-88690-7_17BibTeX
@inproceedings{georgiev2008eccv-unified,
title = {{Unified Frequency Domain Analysis of Lightfield Cameras}},
author = {Georgiev, Todor G. and Intwala, Chintan and Babakan, Sevkit and Lumsdaine, Andrew},
booktitle = {European Conference on Computer Vision},
year = {2008},
pages = {224-237},
doi = {10.1007/978-3-540-88690-7_17},
url = {https://mlanthology.org/eccv/2008/georgiev2008eccv-unified/}
}