Ellipsoidal path connections for time-gated rendering
Abstract
During the last decade, we have been witnessing the continued development of new time-of-flight imaging devices, and their increased use in numerous and varied applications. However, physics-based rendering techniques that can accurately simulate these devices are still lacking: while existing algorithms are adequate for certain tasks, such as simulating transient cameras, they are very inefficient for simulating time-gated cameras because of the large number of wasted path samples. We take steps towards addressing these deficiencies, by introducing a procedure for efficiently sampling paths with a predetermined length, and incorporating it within rendering frameworks tailored towards simulating time-gated imaging. We use our open-source implementation of the above to empirically demonstrate improved rendering performance in a variety of applications, including simulating proximity sensors, imaging through occlusions, depth-selective cameras, transient imaging in dynamic scenes, and non-line-of-sight imaging.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 12, 2019
- Source ID
- 10.1145/3306346.3323016
Entities
People
- Adithya Pediredla
- Ashok Veeraraghavan
- Ioannis Gkioulekas
Organizations
- Carnegie Mellon University
- Defense Advanced Research Projects Agency
- National Science Foundation
- Rice University