Acquisition of Time-Varying Participating Media (2007)
Hawkins, Tim, Einarsson, Per, Debevec, Paul
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...
Postproduction Re-Illumination of Live Action Using Time-Multiplexed Lighting (2007)
Debevec, Paul, Gardber, Andrew, Tchou, Chris, Hawkins, Tim
In this work, we present a technique for capturing a time-varying human performance in such a way that it can be re-illuminated in postproduction. The key idea is to illuminate the subject with a...
Real-Time High-Dynamic Range Texture Mapping (2007)
Cohen, Jonathan, Tchou, Christ, Hawkins, Tim, Debevec, Paul
This paper presents a technique for representing and displaying high dynamic-range texture maps (HDRTMs) using current graphics hardware. Dynamic range in real-world environments often far exceeds...
Direct HDR Capture of the Sun and Sky (2004)
Jessi Stumpfel, Andrew Jones, Andreas Wenger, Chris Tchou, Tim Hawkins, Paul Debevec
We present a technique for capturing the extreme dynamic range of natural illumination environments that include the sun and sky, which has presented a challenge for traditional high dynamic range...
Postproduction Re-Illumination of Live Action Using Time-Multiplexed Lighting (2004)
Paul Debevec, Andrew Gardner, Chris Tchou, Tim Hawkins
In this work, we present a technique for capturing a time-varying human performance in such a way that it can be re-illuminated in postproduction. The key idea is to illuminate the subject with a...
Postproduction Re-Illumination of Live Action Using Interleaved Lighting (2004)
Andrew Gardner, Chris Tchou, Andreas Wenger, Tim Hawkins, Paul Debevec
essive streams and take linear combinations of the lighting configurations to produce a novel illumination of the performance running at 30fps (Fig. 2). Our second experiment uses a two meter sphere...
Direct HDR Capture of the Sun and Sky (2004)
Jessi Stumpfel, Andrew Jones, Andreas Wenger, Chris Tchou, Tim Hawkins, Paul Debevec
sky brightness can change drastically with sun position and weather. The camera control is designed to analyze images as they are downloaded to determine the necessary camera settings for the HDR...
Unlighting the Parthenon (2004)
Chris Tchou, Jessi Stumpfel, Per Einarsson, Marcos Fajardo, Paul Debevec
aph of the structure: (a) Render the surfaces of the scene with a global illumination algorithm, using the photograph's viewpoint and lighting (b) Determine a reflectance update map by comparing the...
Photometric Stereo for Archeological Inscriptions (sketches 0338) (2004)
Per Einarsson, Tim Hawkins, Paul Debevec
One of the input image for an inscription on a column of the Parthenon. The light-capturing frame (Fig. 1) consists of fiducials and MacBeth color checker chart samples, from which the camera's...
D. Arnold, A. Chalmers, F. Niccolucci (editors, Jessi Stumpfel, Christopher Tchou, Nathan Yun, ...
The location, condition, and number of the Parthenon sculptures present a considerable challenge to archeologists and researchers studying this monument. Although the Parthenon proudly stands on the...
Assembling the Sculptures of the Parthenon (2003)
Jessi Stumpfel, Chris Tchou, Tim Hawkins, Paul Debevec, Jonathan Cohen, Andrew Jones, ...
e light onto the casts with the video projector. Because of the efficiency of the system, we were able to scan over 440 linear feet of frieze, 52 metopes, and both pediments in just five days with a...
Linear Light Source Reflectometry (2003)
Andrew Gardner, Chris Tchou, Tim Hawkins, Paul Debevec
This paper presents a technique for estimating the spatially-varying reflectance properties of a surface based on its appearance during a single pass of a linear light source. By using a linear light...
Image-based Environment Matting (2002)
Paul Debevec, Simon Gibson (editors, Y. Wexler, A. W. Fitzgibbon, A. Zisserman
Environment matting is a powerful technique for modelling the complex light-transport properties of real-world optically active elements.' transparent, refractive and reflective objects. Recent...
Acquiring the Reflectance Field of a Human Face (2002)
Paul Debevec, Tim Hawkins, Chris Tchou, Haarm-pieter Duiker, Westley Sarokin
We present a method to acquire the reflectance field of a human face and use these measurements to render the face under arbitrary changes in lighting and viewpoint. We first acquire images of the...
Inverse Global Illumination: Recovering Reflectance Models of Real (2002)
Yizhou Yu, Paul Debevec, Jitendra Malik, Tim Hawkins
In this paper we present a method for recovering the reflectance properties of all surfaces in a real scene from a sparse set of photographs, taking into account both direct and indirect...
Real-Time Animation of Realistic Fog (2002)
Paul Debevec, Simon Gibson (editors, V. Biri, S. Michelin, D. Arqus
Fog introduces a high level of realism to computer graphics. But fog is often simulated by uniform density when real fog is always much more complex. Its variable density creates beautiful shapes of...
Eurographics Workshop on Rendering (2002), pp. 1--9 (2002)
Paul Debevec, Simon Gibson (editors, Adrian Secord, Wolfgang Heidrich, Lisa Streit
In this paper we present a high-quality, image-space approach to illustration that preserves continuous tone by probabilistically distributing primitives while maintaining interactive rates. Our...
A Real-Time Distributed Light Field Camera (2002)
Paul Debevec, Simon Gibson (editors, Jason C. Yang, Matthew Everett, Chris Buehler, Leonard Mcmillan
We present the design and implementation of a real-time, distributed light field camera. Our system allows multiple viewers to navigate virtual cameras in a dynamically changing light field that is...
Image-based Environment Matting (2002)
Paul Debevec, Simon Gibson (editors, Yonatan Wexler, Andrew W. Fitzgibbon, Andrew Zisserman
Environment matting is a powerful technique for modeling the complex light-transport properties of real-world optically active elements: transparent, refractive and reflective objects. Recent...
A Tone Mapping Algorithm for High Contrast Images (2002)
Paul Debevec, Simon Gibson (editors, Michael Ashikhmin
A new method is presented that takes as an input a high dynamic range image and maps it into a limited range of luminance values reproducible by a display device. There is significant evidence that a...
Real-Time Halftoning: A Primitive For Non-Photorealistic Shading (2002)
Paul Debevec, Simon Gibson (editors, Bert Freudenberg, Maic Masuch, Thomas Strothotte
We introduce halftoning as a general primitive for real-time non-photorealistic shading. It is capable of producing a variety of rendering styles, ranging from engraving with lighting-dependent line...
A Lighting Reproduction Approach to Live-Action Compositing (2002)
Paul Debevec, Andreas Wenger, Chris Tchou, Andrew Gardner, Jamie Waese, Tim Hawkins
We describe a process for compositing a live performance of an actor into a virtual set wherein the actor is consistently illuminated by the virtual environment. The Light Stage used in this work is...
Time-critical Rendering of Discrete and Continuous Levels of Detail (2002)
Paul Debevec, Simon Gibson (editors, Christopher Zach, Stephan Mantler, Konrad Karner
We present a novel level of detail selection method for real-time rendering, that works on hierarchies of discrete and continuous representations. We integrate point rendered objects with polygonal...
Inverse Global Illumination: Recovering Reflectance Models of Real (2002)
Yizhou Yu, Paul Debevec, Jitendra Malik, Tim Hawkins
In this paper we present a method for recovering the reflectance properties of all surfaces in a real scene from a sparse set of photographs, taking into account both direct and indirect...
Inverse Global Illumination: Recovering Reflectance Models of Real (2002)
Yizhou Yu, Paul Debevec, Jitendra Malik, Tim Hawkins
In this paper we present a method for recovering the reflectance properties of all surfaces in a real scene from a sparse set of photographs, taking into account both direct and indirect...
Efficient View-Dependent Image-Based (2002)
Paul Debevec, Yizhou Yu, George Borshukov
This paper presents how the image-based rendering technique of viewdependent texture-mapping (VDTM) can be efficiently implemented using projective texture mapping, a feature commonly available in...
Interactive Global Illumination Using Selective Photon Tracing (2002)
Dmitriev, Kirill, Brabec, Stefan, Myszkowski, Karol, Seidel, Hans-Peter, Debevec, Paul, Gibson, Simon
Accelerating Path Tracing by re-using Paths (2002)
Bekaert, Philippe, Sbert, Mateu, Halton, John, Debevec, Paul, Gibson, Simon
This paper describes a new acceleration technique for rendering algorithms like path tracing, that use so called gathering random walks. Usually in path tracing, each traced path is used in order to...
Fast Arbitrary BRDF Shading for Low-Frequency Lighting Using Spherical Harmonics (2002)
Kautz, Jan, Sloan, Peter-Pike, Snyder, John, Debevec, Paul, Gibson, Simon
Real-time shading using general (e.g., anisotropic) BRDFs has so far been limited to a few point or directional light sources. We extend such shading to smooth, area lighting using a low-order...
A Photometric Approach to Digitizing Cultural Artifacts (2001)
Tim Hawkins, Jonathan Cohen, Paul Debevec
In this paper we present a photometry-based approach to the digital documentation of cultural artifacts. Rather than representing an artifact as a geometric model with spatially varying reflectance...
Efficient View-Dependent Image-Based Rendering with Projective Texture-Mapping (2001)
Paul Debevec, Yizhou Yu, George Borshukov
. This paper presents how the image-based rendering technique ofviewdependent texture-mapping (VDTM) can be efficiently implementedusing projective texture mapping, a feature commonly available...
Real-Time High-Dynamic Range Texture Mapping (2001)
Jonathan Cohen, Chris Tchou, Tim Hawkins, Paul Debevec
This paper presents a technique for representing and displaying high dynamic-range texture maps (HDRTMs) using current graphics hardware. Dynamic range in real-world environments often far exceeds...
Acquiring the Reflectance Field of a Human Face (2000)
Paul Debevec, Tim Hawkins, Chris Tchou, Haarm-pieter Duiker, Westley Sarokin
We present a method to acquire the reflectance field of a human face and use these measurements to render the face under arbitrary changes in lighting and viewpoint. We first acquire images of the...
Inverse Global Illumination: Recovering Reflectance Models of Real Scenes from Photographs (1999)
Yizhou Yu, Paul Debevec, Jitendra Malik, Tim Hawkins
In this paper we present a method for recovering the reflectance properties of all surfaces in a real scene from a sparse set of photographs, taking into account both direct and indirect...
Inverse Global Illumination: Recovering Reflectance Models of Real Scenes from Photographs (1999)
Yizhou Yu, Paul Debevec, Jitendra Malik, Tim Hawkins
In this paper we present a method for recovering the reflectance properties of all surfaces in a real scene from a sparse set of photographs, taking into account both direct and indirect...
Inverse Global Illumination: Recovering Reflectance Models of Real Scenes from Photographs (1999)
Yizhou Yu, Paul Debevec, Jitendra Malik, Tim Hawkins
We present a technique for recovering spatially varying reflectance parameters of real environments from photographs taking into account mutual illumination. The techniques fits to a low-parameter...
Photogrammetric Modeling and Image-Based Rendering for Rapid Virtual Environment Creation (1998)
Poullis, Charalambos, Gardner, Andrew, Debevec, Paul
For realistic simulations, architecture is one of the most important elements to model and render photorealistically. Current techniques of converting architectural plans or survey data to CAD models...
Efficient View-Dependent Image-Based Rendering with Projective Texture-Mapping (1998)
Paul Debevec, Yizhou Yu, George Borshukov
. This paper presents how the image-based rendering technique of viewdependent texture-mapping (VDTM) can be efficiently implemented using projective texture mapping, a feature commonly available in...