Color constancy from mutual reflection
International Journal of Computer Vision
Reflection from layered surfaces due to subsurface scattering
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
Reflectance and texture of real-world surfaces
ACM Transactions on Graphics (TOG)
Acquiring the reflectance field of a human face
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Specularities on surfaces with tangential hairs or grooves
Computer Vision and Image Understanding
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Real-time Photo-Realistic Physically Based Rendering of Fine Scale Human Skin Structure
Proceedings of the 12th Eurographics Workshop on Rendering Techniques
Light scattering from human hair fibers
ACM SIGGRAPH 2003 Papers
Machine Vision and Applications - Special issue: Human modeling, analysis, and synthesis
DISCO: acquisition of translucent objects
ACM SIGGRAPH 2004 Papers
Measuring and modeling the appearance of finished wood
ACM SIGGRAPH 2005 Papers
A practical analytic single scattering model for real time rendering
ACM SIGGRAPH 2005 Papers
Fast separation of direct and global components of a scene using high frequency illumination
ACM SIGGRAPH 2006 Papers
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When a scene is lit by a source of light, the radiance of each point in the scene can be viewed as having two components, namely, direct and global. Recently, an efFIcient separation method has been proposed that uses high frequency illumination patterns to measure the direct and global components of a scene. The global component could arise from not only interreflections but also subsurface scattering within translucent surfaces and volumetric scattering by participating media. In this paper, we use this method to measure the direct and global components of a variety of natural and man-made materials. The computed direct and global images provide interesting insights into the scattering properties of common real-world materials. We have also measured the two components for a 3D texture as a function of lighting direction. This experiment shows that the global component of a BTF tends vary smoothly with respect to the lighting direction compared to the direct component of the BTF. Finally, we apply the separation method to a translucent object for different imaging and illumination scales (resolutions). The results obtained show how the BSSDRF of the object gradually reduces to a BRDF as one goes from fine to coarse scale. All the measurement results reported here, as well as several others, can be viewed as high resolution images at http://www1.cs.columbia.edu/CAVE/projects/separation/separation.php.