On the appearance of translucent edges
Author(s)
Gkioulekas, Ioannis
Walter, Bruce
Bala, Kavita
Zickler, Todd
Adelson, Edward H
Date Issued
October 2015
Journal
2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Gkioulekas, Ioannis et al. “On the Appearance of Translucent Edges.” 2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), June 7-12 2015, Boston, Massachusetts, USA, Institute of Electrical and Electronics Engineers (IEEE), October 2015 © 2015 Institute of Electrical and Electronics Engineers (IEEE)
Version
Author's final manuscript
Abstract
Edges in images of translucent objects are very different from edges in images of opaque objects. The physical causes for these differences are hard to characterize analytically and are not well understood. This paper considers one class of translucency edges - those caused by a discontinuity in surface orientation - and describes the physical causes of their appearance. We simulate thousands of translucency edge profiles using many different scattering material parameters, and we explain the resulting variety of edge patterns by qualitatively analyzing light transport. We also discuss the existence of shape and material metamers, or combinations of distinct shape or material parameters that generate the same edge profile. This knowledge is relevant to visual inference tasks that involve translucent objects, such as shape or material estimation.
MIT Department
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/CVPR.2015.7299192
