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SIGGRAPH
2000
ACM
14 years 7 days ago
A microfacet-based BRDF generator
A method is presented that takes as an input a 2D microfacet orientation distribution and produces a 4D bidirectional reflectance distribution function (BRDF). This method differ...
Michael Ashikhmin, Simon Premoze, Peter Shirley
DGCI
2009
Springer
14 years 16 days ago
Pixel Approximation Errors in Common Watershed Algorithms
Abstract. The exact, subpixel watershed algorithm delivers very accurate watershed boundaries based on a spline interpolation, but is slow and only works in 2D. On the other hand, ...
Hans Meine, Peer Stelldinger, Ullrich Köthe
CAD
2005
Springer
13 years 7 months ago
Freeform surface flattening based on fitting a woven mesh model
This paper presents a robust and efficient surface flattening approach based on fitting a woven-like mesh model on a 3D freeform surface. The fitting algorithm is based on tendon ...
Charlie C. L. Wang, Kai Tang, Benjamin M. L. Yeung
ICASSP
2008
IEEE
14 years 2 months ago
Video denoising using higher order optimal space-time adaptation
The optimal spatial adaptation (OSA) method [1] proposed by Boulanger and Kervrann has proven to be quite effective for spatially adaptive image denoising. This method, in additio...
Hae Jong Seo, Peyman Milanfar
ESANN
2004
13 years 9 months ago
Fast semi-automatic segmentation algorithm for Self-Organizing Maps
Self-Organizing Maps (SOM) are very powerful tools for data mining, in particular for visualizing the distribution of the data in very highdimensional data sets. Moreover, the 2D m...
David Opolon, Fabien Moutarde