Reducing Plenoptic Camera Artifacts

The focused plenoptic camera differs from the traditional plenoptic camera in that its microlenses are focused on the photographed object rather than at infinity. The spatio‐angular tradeoffs available with this approach enable rendering of final images that have significantly higher resolution than...

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Bibliographic Details
Published in:Computer graphics forum Vol. 29; no. 6; pp. 1955 - 1968
Main Authors: Georgiev, T., Lumsdaine, A.
Format: Journal Article
Language:English
Published: Oxford, UK Blackwell Publishing Ltd 01.09.2010
Subjects:
Algorithms
artifact reduction
Cameras
Computation
Computer graphics
depth estimation
Design engineering
focused plenoptic camera
Image Processing And Computer Vision [I.4.3]: Imaging Geometry-Super Resolution
Image processing systems
Infinity
lightfield rendering
Microlenses
Optics
plenoptic rendering
Rendering
Studies
ISSN:0167-7055, 1467-8659
Online Access:Get full text
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Summary:The focused plenoptic camera differs from the traditional plenoptic camera in that its microlenses are focused on the photographed object rather than at infinity. The spatio‐angular tradeoffs available with this approach enable rendering of final images that have significantly higher resolution than those from traditional plenoptic cameras. Unfortunately, this approach can result in visible artifacts when basic rendering is used. In this paper, we present two new methods that work together to minimize these artifacts. The first method is based on careful design of the optical system. The second method is computational and based on a new lightfield rendering algorithm that extracts the depth information of a scene directly from the lightfield and then uses that depth information in the final rendering. Experimental results demonstrate the effectiveness of these approaches.
Bibliography:ArticleID:CGF1662
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ISSN:0167-7055
1467-8659
DOI:10.1111/j.1467-8659.2010.01662.x