Session details


Friday May 05
Virtual Humans Forum: Modeling and Rendering Realistic Facial Reflectance
Paul E. Debevec, Executive Producer/ Graphics Research, University of Southern California
Institute for Creative Technologies

A central aspect of the virtual humans problem is to model the geometry, reflectance, and kinematics of the face to produce realistic renderings under new lighting conditions, from new viewing angles, and with different expressions and motion. This talk will present a spectrum of techniques which have successfully reproduced aspects of facial appearance using technologies for scanning facial geometry, digitizing facial reflectance, simulating facial illumination, and capturing facial performance. Included in this presentation will be the Light Stage 2 process used by Sony Pictures Imageworks to create realistic virtual actors in the 2004 film Spider Man 2 and recent work allowing postproduction relighting of actor's performances using time-multiplexed illumination.

Paul Debevec is a research associate professor and the executive producer of graphics research at USC's Institute for Creative Technologies. His 1996 PhD thesis presented an image-based modeling and rendering system for creating virtual cinematography of scenes from photographs, techniques which were later used to create the Academy-Award winning virtual backgrounds in the "The Matrix". Debevec's HDRI techniques for lighting CGI characters with on-set lighting measurements have been used in films such as the X-Men series, the Matrix sequels, and "The Chronicles of Narnia". His recent Light Stage systems allow actors and performances to be synthetically illuminated in postproduction; such techniques were used to create photoreal digital actors for the film "Spider Man 2". Debevec received SIGGRAPH's first Significant New Researcher Award in 2001.

Paul E. Debevec
Executive Producer/ Graphics Research
University of Southern California
Institute for Creative Technologies

The University of Southern California's Institute for Creative Technologies (USC ICT) was founded in 1999 with a charter to foster collaboration between academic research and the entertainment industry to advance the state of the art for realistic virtual experiences in the areas of computer graphics, artificial intelligence, and immersive audio.

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