Theory and Methods of Lightfield Photography
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Date
2010
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Publisher
The Eurographics Association
Abstract
Computational photography is based on capturing and processing discrete representations of all the light rays in the 3D space of a scene. Compared to conventional photography, which captures 2D images, computational photography captures the entire 4D 'lightfield' - the full 4D radiance. To multiplex the 4D radiance onto conventional 2D sensors, light-field photography demands sophisticated optics and imaging technology. At the same time, 2D image creation is based on creating 2D projections of the 4D radiance. <br>This course presents light-field analysis in a rigorous, yet accessible, mathematical way, which often leads to surprisingly direct solutions. The mathematical foundations will be used to develop computational methods for lightfield processing and image rendering, including digital refocusing and perspective viewing. While emphasizing theoretical understanding, we also explain approaches and engineering solutions to practical problems in computational photography. <br>As part of the course, we will demonstrate a number of working light-field cameras that implement different methods for radiance capture, including the microlens approach of Lippmann and the plenoptic camera; the focused plenoptic camera, the Adobe lens-prism camera; and a new camera using a mosquito net mask. Various computational techniques for processing captured light-fields will also be demonstrated, including the focused plenoptic camera and real-time radiance rendering.
Description
@inproceedings{10.2312:egt.20101069,
booktitle = {Eurographics 2010 - Tutorials},
editor = {U. Assarsson and D. Weiskopf},
title = {{Theory and Methods of Lightfield Photography}},
author = {Georgiev, Todor and Lumsdaine, Andrew},
year = {2010},
publisher = {The Eurographics Association},
ISBN = {},
DOI = {10.2312/egt.20101069}
}