Ellipsoidal Connections for Time-Gated Rendering - Robotics Institute Carnegie Mellon University

Ellipsoidal Connections for Time-Gated Rendering

A. Pediredla, A. Veeraraghavan, and I. Gkioulekas
Journal Article, ACM Transactions on Graphics (TOG), Vol. 38, No. 4, July, 2019

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.

BibTeX

@article{Pediredla-2019-113429,
author = {A. Pediredla and A. Veeraraghavan and I. Gkioulekas},
title = {Ellipsoidal Connections for Time-Gated Rendering},
journal = {ACM Transactions on Graphics (TOG)},
year = {2019},
month = {July},
volume = {38},
number = {4},
}