Sciweavers

647 search results - page 23 / 130
» A Geometric Functional for Derivatives Approximation
Sort
View
NPL
2008
63views more  NPL 2008»
13 years 8 months ago
New Routes from Minimal Approximation Error to Principal Components
We introduce two new methods of deriving the classical PCA in the framework of minimizing the mean square error upon performing a lower-dimensional approximation of the data. These...
Abhilash Alexander Miranda, Yann-Aël Le Borgn...
SMA
2009
ACM
125views Solid Modeling» more  SMA 2009»
14 years 3 months ago
Stable mesh decimation
Current mesh reduction techniques, while numerous, all primarily reduce mesh size by successive element deletion (e.g. edge collapses) with the goal of geometric and topological f...
Chandrajit L. Bajaj, Andrew Gillette, Qin Zhang
ISBI
2011
IEEE
13 years 5 days ago
Exact integration of diffusion orientation distribution functions for graph-based diffusion MRI analysis
Graph-based image analysis methods are increasingly being applied to diffusion MRI (dMRI) analysis. Unfortunately, weighting the graph for these methods involves solving a complex...
Brian G. Booth, Ghassan Hamarneh
ICRA
2010
IEEE
129views Robotics» more  ICRA 2010»
13 years 7 months ago
Improving mutual information-based visual servoing
— In a previous paper [3], we proposed a new way to achieve visual servoing. Rather than minimizing the error between the position of two set of geometric features, we proposed t...
Amaury Dame, Éric Marchand
CGF
2010
135views more  CGF 2010»
13 years 5 months ago
Interactive Rendering of Non-Constant, Refractive Media Using the Ray Equations of Gradient-Index Optics
Existing algorithms can efficiently render refractive objects of constant refractive index. For a medium with a continuously varying index of refraction, most algorithms use the r...
Chen Cao, Zhong Ren, Baining Guo, Kun Zhou