Relativistic Effects for Time-Resolved Light Transport
Name
Raskar_Relativistic effects.pdf
Size
14.66 MB
Format
Adobe PDF
Checksum (MD5)
53e42a75eab05422ec7a12372e4ebbfa
Author(s)
Jarabo, Adrian
Masia Corcoy, Belen
Velten, Andreas
Barsi, Christopher
Raskar, Ramesh
Gutierrez, Diego
Date Issued
May 2015
Journal
Computer Graphics Forum
Publisher
John Wiley & Sons
Citation
Jarabo, Adrian, Belen Masia, Andreas Velten, Christopher Barsi, Ramesh Raskar, and Diego Gutierrez. “Relativistic Effects for Time-Resolved Light Transport.” Computer Graphics Forum 34, no. 8 (May 13, 2015): 1–12.
Version
Author's final manuscript
Abstract
We present a real-time framework which allows interactive visualization of relativistic effects for time-resolved light transport. We leverage data from two different sources: real-world data acquired with an effective exposure time of less than 2 picoseconds, using an ultra-fast imaging technique termed femto-photography, and a transient renderer based on ray-tracing. We explore the effects of time dilation, light aberration, frequency shift and radiance accumulation by modifying existing models of these relativistic effects to take into account the time-resolved nature of light propagation. Unlike previous works, we do not impose limiting constraints in the visualization, allowing the virtual camera to explore freely a reconstructed 3D scene depicting dynamic illumination. Moreover, we consider not only linear motion, but also acceleration and rotation of the camera. We further introduce, for the first time, a pinhole camera model into our relativistic rendering framework, and account for subsequent changes in focal length and field of view as the camera moves through the scene.
MIT Department
Massachusetts Institute of Technology. Media Laboratory
Program in Media Arts and Sciences (Massachusetts Institute of Technology)
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1111/cgf.12604
