In this thesis we focus on the multidimensional nature of light transport as
described by the plenoptic function, and in particular in the angular and
temporal domains. While traditional imaging has been limited to bidimensional
images, the emerging field of Computational Imaging has made increasingly
available more complex multidimensional visual data, disambiguating
additional domains of the plenoptic function. However, this higher dimensionality
requires changing the way that visual information is processed, manipulated,
visualized or synthesized. In this thesis we present contributions
on these topics, addressing the challenges of adapting and rethinking them
to handle higher-dimensional visual information. Specifically, within the angular
domain we focus on light field editing, studying interaction paradigms
and user workflows when interacting with light fields, and on spatio-angular
filtering of complex appearances modeled with BTFs, studying how filtering
affects appearance perception. On the other hand, in the temporal domain we
focus on transient light transport, where the speed of light cannot longer be
considered infinite, including contributions on capture and data processing,
light transport simulation and visualization of time-resolved data.
