Acquisition of Time-Varying Participating Media

Acquisition of Time-Varying Participating Media

We present a technique for capturing time-varying volumetric data of participating media. A laser sheet is swept repeatedly through the volume, and the scattered light is imaged using a high-speed camera. Each sweep of the laser provides a near-simultaneous volume of density values. We demonstrate r...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hawkins, Tim, Einarsson, Per, Debevec, Paul
Format: Report
Sprache:eng
Schlagworte:
ALBEDO
COMPUTER GRAPHICS
DENSITY VALUES
FLUID FLOW
Fluid Mechanics
FLUID SIMULATORS
GALVANOMETERS
HIGH SPEED CAMERAS
LASER APPLICATIONS
LASER INDUCED FLUORESCENCE
LIGHT SCATTERING
MIE SCATTERING
Optics
PARTICULATES
PHASE FUNCTION
Photography
RENDERING
VOLUME
VOLUMETRIC DATA
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Beschreibung
Zusammenfassung:We present a technique for capturing time-varying volumetric data of participating media. A laser sheet is swept repeatedly through the volume, and the scattered light is imaged using a high-speed camera. Each sweep of the laser provides a near-simultaneous volume of density values. We demonstrate rendered animations under changing viewpoint and illumination, making use of measured values for the scattering phase function and albedo. The original document contains color images. Presented at ACM SIGGRAPH 2005, International Conference on Computer Graphics and Interactive Techniques, held in Los Angeles, CA on 31 Jul-4 Aug 2005. Published in the Proceedings of SIGGRAPH 2005, p812-815, 2005.