493 search results - page 72 / 99 » Adaptive thresholding by variational method |
VMV
2000
13 years 9 months ago
2000
Subdivision schemes are commonly used to obtain dense or smooth data representations from sparse discrete data. E. g., B-splines are smooth curves or surfaces that can be construc...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
This paper addresses the problem of the interpolation of 2-d spherical signals from non-uniformly sampled and noisy data. We propose a graph-based regularization algorithm to impr...
CGF
2002
13 years 7 months ago
2002
We present a method to efficiently construct and render a smooth surface for approximation of large functional scattered data. Using a subdivision surface framework and techniques...
PAAPP
2002
13 years 7 months ago
2002
Applications involving large sparse nonsymmetric linear systems encourage parallel implementations of robust iterative solution methods, such as GMRES(k). Two parallel versions of...
MICCAI
2010
Springer
13 years 5 months ago
2010
Springer
Automatic segmentation of the heart's left atrium offers great benefits for planning and outcome evaluation of atrial ablation procedures. However, the high anatomical variabi...