TY - JOUR
T1 - Nonuniform spatial deformation of light fields by locally linear transformations
AU - Birklbauer, Clemens
AU - Schedl, David C.
AU - Bimber, Oliver
N1 - DBLP License: DBLP's bibliographic metadata records provided through http://dblp.org/ are distributed under a Creative Commons CC0 1.0 Universal Public Domain Dedication. Although the bibliographic metadata records are provided consistent with CC0 1.0 Dedication, the content described by the metadata records is not. Content may be subject to copyright, rights of privacy, rights of publicity and other restrictions.
PY - 2016/6
Y1 - 2016/6
N2 - Light-field cameras offer new imaging possibilities compared to conventional digital cameras.However, the additional angular domain of light fields prohibits direct application of frequently used image processing algorithms, such as warping, retargeting, or stitching. We present a general and efficient framework for nonuniform light-field warping, which forms the basis for extending many of these image processing techniques to light fields. It propagates arbitrary spatial deformations defined in one light-field perspective consistently to all other perspectives by means of 4D patch matching instead of relying on explicit depth reconstruction. This allows processing light-field recordings of complex scenes with non-Lambertian properties such as transparency and refraction. We show application examples of our framework in panorama light-field imaging, light-field retargeting, and artistic manipulation of light fields.
AB - Light-field cameras offer new imaging possibilities compared to conventional digital cameras.However, the additional angular domain of light fields prohibits direct application of frequently used image processing algorithms, such as warping, retargeting, or stitching. We present a general and efficient framework for nonuniform light-field warping, which forms the basis for extending many of these image processing techniques to light fields. It propagates arbitrary spatial deformations defined in one light-field perspective consistently to all other perspectives by means of 4D patch matching instead of relying on explicit depth reconstruction. This allows processing light-field recordings of complex scenes with non-Lambertian properties such as transparency and refraction. We show application examples of our framework in panorama light-field imaging, light-field retargeting, and artistic manipulation of light fields.
KW - Algorithms
UR - http://www.scopus.com/inward/record.url?scp=84978112646&partnerID=8YFLogxK
U2 - 10.1145/2928267
DO - 10.1145/2928267
M3 - Article
AN - SCOPUS:84978112646
SN - 0730-0301
VL - 35
JO - ACM Transactions on Graphics
JF - ACM Transactions on Graphics
IS - 5
M1 - 156
ER -