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ICIP
2002
IEEE
16 years 7 months ago
Joint space-time image sequence segmentation based on volume competition and level sets
In this paper, we address the issue of joint space-time segmentation of image sequences. Typical approaches to such segmentation consider two image frames at a time, and perform t...
Mirko Ristivojevic, Janusz Konrad
VIS
2007
IEEE
165views Visualization» more  VIS 2007»
16 years 7 months ago
Cores of Swirling Particle Motion in Unsteady Flows
In nature and in flow experiments particles form patterns of swirling motion in certain locations. Existing approaches identify these structures by considering the behavior of stre...
Tino Weinkauf, Jan Sahner, Holger Theisel, Hans...
VIS
2004
IEEE
195views Visualization» more  VIS 2004»
16 years 7 months ago
Flow Field Clustering via Algebraic Multigrid
We present a novel multiscale approach for flow visualization. We define a local alignment tensor that encodes a measure for alignment to the direction of a given flow field. This...
Michael Griebel, Tobias Preußer, Martin Rump...
VIS
2003
IEEE
121views Visualization» more  VIS 2003»
16 years 7 months ago
Hierarchical Clustering for Unstructured Volumetric Scalar Fields
We present a method to represent unstructured scalar fields at multiple levels of detail. Using a parallelizable classification algorithm to build a cluster hierarchy, we generate...
Christopher S. Co, Bjørn Heckel, Hans Hagen...
MICCAI
2008
Springer
16 years 7 months ago
Assessment of Reliability of Multi-site Neuroimaging Via Traveling Phantom Study
Abstract. This paper describes a framework for quantitative analysis of neuroimaging data of traveling human phantoms used for cross-site validation. We focus on the analysis of ma...
Sylvain Gouttard, Martin Styner, Marcel Prastawa...