New Techniques for Acquiring, Rendering, and Displaying Human Performances

Google Tech TalksFebruary, 29 2008ABSTRACT I will present recent work for acquiring, rendering, and displayingphotoreal models of people, objects, and dynamic performances. I willoverview image-based lighting techniques for photorealistic compositing andreflectance acquisition techniques which have been used to create realisticdigital actors in films such as "Spider Man 2" and "Superman Returns". Iwill then describe initial work with our lab's Light Stage 6 system tocombine image-based relighting with free-viewpoint video to capture andrender full-body performances. I will also describe a new 3D face scanningprocess that captures high-resolution skin detail by estimating surfaceorientation from the skin's reflection of polarized spherical gradientillumination. I will conclude by describing a new 3D display that leverages5,000 frames per second video projection to show autostereoscopic,interactive 3D imagery to any number of viewers simultaneously.Speaker: Dr. Paul Debevec, University of Southern California Institute for Creative Technologies Paul Debevec is the associate director of graphics research at USC'sInstitute for Creative Technologies (USC ICT) and a research associateprofessor at USC's Department of Computer Science. His Ph.D. thesis at UCBerkeley presented Façade, an image-based modeling and rendering system forcreating photoreal virtual camera motion through architectural scenes fromphotographs. Using Façade he led the creation of a photoreal animation ofthe Berkeley campus for his 1997 film "The Campanile Movie" whosetechniques were later used to create virtual backgrounds for the "TheMatrix"; he went on to demonstrate new image-based lighting techniques inhis animations "Rendering with Natural Light", "Fiat Lux", and "TheParthenon". He also led the design of HDR Shop, the first widely used highdynamic range image editing program. Paul received ACM SIGGRAPH'sSignificant New Researcher Award in 2001 and co-authored the book "HighDynamic Range Imaging" in 2005. Most recently, he chaired the SIGGRAPH2007 Computer Animation Festival.

Channel: People & Blogs
Uploaded: November 30, 1999 at 12:00 am
Author: googletechtalks

Length: 50:26
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