Title
Unstructured Light Fields
Abstract
We present a system for interactively acquiring and rendering light fields using a hand-held commodity camera. The main challenge we address is assisting a user in achieving good coverage of the 4D domain despite the challenges of hand-held acquisition. We define coverage by bounding reprojection error between viewpoints, which accounts for all 4 dimensions of the light field. We use this criterion together with a recent Simultaneous Localization and Mapping technique to compute a coverage map on the space of viewpoints. We provide users with real-time feedback and direct them toward under-sampled parts of the light field. Our system is lightweight and has allowed us to capture hundreds of light fields. We further present a new rendering algorithm that is tailored to the unstructured yet dense data we capture. Our method can achieve piecewise-bicubic reconstruction using a triangulation of the captured viewpoints and subdivision rules applied to reconstruction weights. © 2012 Wiley Periodicals, Inc.
Year
DOI
Venue
2012
10.1111/j.1467-8659.2012.03009.x
Comput. Graph. Forum
Keywords
Field
DocType
good coverage,hand-held commodity camera,wiley periodicals,hand-held acquisition,light field,coverage map,mapping technique,unstructured light fields,reconstruction weight,piecewise-bicubic reconstruction,new rendering algorithm
Computer vision,Reprojection error,Computer graphics (images),Computer science,Viewpoints,Light field,Triangulation (social science),Subdivision,Artificial intelligence,Coverage map,Rendering (computer graphics),Simultaneous localization and mapping
Journal
Volume
Issue
ISSN
31
2pt1
0167-7055
Citations 
PageRank 
References 
36
1.09
26
Authors
3
Name
Order
Citations
PageRank
Abe Davis11297.15
Marc Levoy2102731073.33
Frédo Durand38625414.94