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» Approximation algorithms for developable surfaces
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VC
2008
132views more  VC 2008»
15 years 1 months ago
Caustic spot light for rendering caustics
It is difficult to render caustic patterns at interactive frame rates. This paper introduces new rendering techniques that relax current constraints, allowing scenes with moving, n...
Xinguo Liu, Zhao Dong, Hujun Bao, Qunsheng Peng
PAMI
2012
13 years 4 months ago
Image Signature: Highlighting Sparse Salient Regions
—We introduce a simple image descriptor referred to as the image signature. We show, within the theoretical framework of sparse signal mixing, that this quantity spatially approx...
Xiaodi Hou, Jonathan Harel, Christof Koch
MICCAI
2004
Springer
16 years 2 months ago
Spatio-Temporal Free-Form Registration of Cardiac MR Image Sequences
In this paper we develop a spatio-temporal registration algorithm for cardiac MR image sequences. The algorithm has the ability to correct any spatial misalignment between the imag...
Dimitrios Perperidis, Raad Mohiaddin, Daniel Rueck...
SI3D
1999
ACM
15 years 6 months ago
Interactive curve design using digital French curves
In the real world designers often use French curves or sweeps to create or edit curves to bring out a personal style or reflect a corporate standard in all their designs. A Frenc...
Karan Singh
APPROX
2007
Springer
87views Algorithms» more  APPROX 2007»
15 years 5 months ago
Stochastic Steiner Tree with Non-uniform Inflation
We study the Steiner Tree problem in the model of two-stage stochastic optimization with non-uniform inflation factors, and give a poly-logarithmic approximation factor for this pr...
Anupam Gupta, MohammadTaghi Hajiaghayi, Amit Kumar