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A framework for transient rendering

Authors:

Wojciech Jarosz,

Diego GutierrezAuthors Info & Claims

ACM Transactions on Graphics (TOG), Volume 33, Issue 6

Article No.: 177, Pages 1 - 10

https://doi.org/10.1145/2661229.2661251

Published: 19 November 2014 Publication History

Abstract

Recent advances in ultra-fast imaging have triggered many promising applications in graphics and vision, such as capturing transparent objects, estimating hidden geometry and materials, or visualizing light in motion. There is, however, very little work regarding the effective simulation and analysis of transient light transport, where the speed of light can no longer be considered infinite. We first introduce the transient path integral framework, formally describing light transport in transient state. We then analyze the difficulties arising when considering the light's time-of-flight in the simulation (rendering) of images and videos. We propose a novel density estimation technique that allows reusing sampled paths to reconstruct time-resolved radiance, and devise new sampling strategies that take into account the distribution of radiance along time in participating media. We then efficiently simulate time-resolved phenomena (such as caustic propagation, fluorescence or temporal chromatic dispersion), which can help design future ultra-fast imaging devices using an analysis-by-synthesis approach, as well as to achieve a better understanding of the nature of light transport.

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Index Terms

A framework for transient rendering
1. Computing methodologies
  1. Computer graphics
    1. Rendering
      1. Ray tracing

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Published In

cover image ACM Transactions on Graphics

ACM Transactions on Graphics Volume 33, Issue 6

November 2014

704 pages

ISSN:0730-0301

EISSN:1557-7368

DOI:10.1145/2661229

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Copyright © 2014 ACM.

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Publication History

Published: 19 November 2014

Published in TOG Volume 33, Issue 6

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Cited By

He QDu DJiang HJin X(2024)DARTS: Diffusion Approximated Residual Time Sampling for Time-of-flight Rendering in Homogeneous Scattering MediaACM Transactions on Graphics10.1145/368793043:6(1-14)Online publication date: 19-Nov-2024
https://doi.org/10.1145/3687930
Wang MMorris D(2024)Self-Annotated 3D Geometric Learning for Smeared Points Removal2024 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)10.1109/WACV57701.2024.00346(3482-3491)Online publication date: 3-Jan-2024
https://doi.org/10.1109/WACV57701.2024.00346
Dong GZhang YSun XXiong Z(2024)Recurrent Cross-Modality Fusion for Time-of-Flight Depth DenoisingIEEE Transactions on Computational Imaging10.1109/TCI.2024.349631210(1626-1639)Online publication date: 2024
https://doi.org/10.1109/TCI.2024.3496312
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