New Techniques for Acquiring, Rendering, and Displaying Human Performances

Google Tech Talks
February, 29 2008

ABSTRACT

I will present recent work for acquiring, rendering, and displaying
photoreal models of people, objects, and dynamic performances. I will
overview image-based lighting techniques for photorealistic compositing and
reflectance acquisition techniques which have been used to create realistic
digital actors in films such as "Spider Man 2" and "Superman Returns". I
will then describe initial work with our lab's Light Stage 6 system to
combine image-based relighting with free-viewpoint video to capture and
render full-body performances. I will also describe a new 3D face scanning
process that captures high-resolution skin detail by estimating surface
orientation from the skin's reflection of polarized spherical gradient
illumination. I will conclude by describing a new 3D display that leverages
5,000 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's
Institute for Creative Technologies (USC ICT) and a research associate
professor at USC's Department of Computer Science. His Ph.D. thesis at UC
Berkeley presented Façade, an image-based modeling and rendering system for
creating photoreal virtual camera motion through architectural scenes from
photographs. Using Façade he led the creation of a photoreal animation of
the Berkeley campus for his 1997 film "The Campanile Movie" whose
techniques were later used to create virtual backgrounds for the "The
Matrix"; he went on to demonstrate new image-based lighting techniques in
his animations "Rendering with Natural Light", "Fiat Lux", and "The
Parthenon". He also led the design of HDR Shop, the first widely used high
dynamic range image editing program. Paul received ACM SIGGRAPH's
Significant New Researcher Award in 2001 and co-authored the book "High
Dynamic Range Imaging" in 2005. Most recently, he chaired the SIGGRAPH
2007 Computer Animation Festival.

Category:

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[soylentgreenb]

In my experience there is an inverse correlation between being a good speaker and knowing what the hell you're talking about.

In particular you might consider politicians, salesmen and other professional liars.

[cybercow222]

50:25 !!! doh

[tmilatos]

Νοw thats a cool job....

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[freaqie]

@XXLRutin

google just changed policy, "good" uploaders may now create videos of longer length, how a good person is exactly defined is somehwhat unclear as of yet but as a guideline google said that people uploading protected content would not be allowed to post long video's while people having a "good" history (of not uploading copyrighted content) may post long vids.

[powguma]

This was a very informative and really cool video.

Only thing you losers can bash on this video is the most common talking habit ever.  Some people will only see and talk about negative things, does that make you feel better?

[dezenaamkannog]

@XXLRutin you know about the 'special' rulez? :p

[XXLRutin]

Youtube Upload Rules:

Videos can be...

High Definition

Up to 2 GB in size.

Up to 10 minutes in length.

A wide variety of formats

How is this possible that this video is 50 min long? Rules are for ALL even for Google I think.

[MyFJ]

oh my, uh um uh. mmmh. I counted 50 in the first 2:40 I was going to count them all but gave up.

[brierejoe]

Terrible!!! Way too many "uhm" and "uh" interuptions to make it tolerable. Way too annoying to listen to. Definitely not public speaker material.

[giorgionetg]

mmmhh... Debevek had created this kind of technics... :)