Sciweavers

MICCAI
2000
Springer
14 years 3 months ago
Nonrigid Registration of 3D Scalar, Vector and Tensor Medical Data
New medical imaging modalities offering multi-valued data, such as phase contrast MRA and diffusion tensor MRI, require general representations for the development of automatized a...
Juan Ruiz-Alzola, Carl-Fredrik Westin, Simon K. Wa...
CVPR
2009
IEEE
14 years 3 months ago
Classification of tensors and fiber tracts using Mercer-kernels encoding soft probabilistic spatial and diffusion information
In this paper, we present a kernel-based approach to the clustering of diffusion tensors and fiber tracts. We propose to use a Mercer kernel over the tensor space where both spati...
Radhouène Neji, Nikos Paragios, Gilles Fleu...
VISUALIZATION
1998
IEEE
14 years 3 months ago
Visualizing diffusion tensor images of the mouse spinal cord
Within biological systems water molecules undergo continuous stochastic Brownian motion. The rate of this diffusion can give clues to the structure of underlying tissues. In some ...
David H. Laidlaw, Eric T. Ahrens, David Kremers, M...
ICCV
1999
IEEE
14 years 3 months ago
Robust Estimation of Curvature Information from Noisy 3D Data for Shape Description
We describe an effective and novel approach to infer sign and direction of principal curvatures at each input site from noisy 3D data. Unlike most previous approaches, no local su...
Chi-Keung Tang, Gérard G. Medioni
CVPR
2010
IEEE
14 years 3 months ago
Action Classification on Product Manifolds
Videos can be naturally represented as multidimensional arrays known as tensors. However, the geometry of the tensor space is often ignored. In this paper, we argue that the under...
Yui Man Lui, J Ross Beveridge, Michael Kirby
VISUALIZATION
2002
IEEE
14 years 4 months ago
Tensor Field Visualisation using Adaptive Filtering of Noise Fields combined with Glyph Rendering
While many methods exist for visualising scalar and vector data, visualisation of tensor data is still troublesome. We present a method for visualising second order tensors in thr...
Andreas Sigfridsson, Tino Ebbers, Einar Heiberg, L...
DSSCV
2005
Springer
14 years 5 months ago
A Riemannian Framework for the Processing of Tensor-Valued Images
In this paper, we present a novel framework to carry out computations on tensors, i.e. symmetric positive definite matrices. We endow the space of tensors with an affine-invariant...
Pierre Fillard, Vincent Arsigny, Nicholas Ayache, ...
MM
2005
ACM
122views Multimedia» more  MM 2005»
14 years 5 months ago
Image clustering with tensor representation
We consider the problem of image representation and clustering. Traditionally, an n1 × n2 image is represented by a vector in the Euclidean space Rn1×n2 . Some learning algorith...
Xiaofei He, Deng Cai, Haifeng Liu, Jiawei Han
VISUALIZATION
2005
IEEE
14 years 5 months ago
2D Asymmetric Tensor Analysis
Analysis of degenerate tensors is a fundamental step in finding the topological structures and separatrices in tensor fields. Previous work in this area have been limited to ana...
Xiaoqiang Zheng, Alex Pang
VISUALIZATION
2005
IEEE
14 years 5 months ago
HOT- Lines: Tracking Lines in Higher Order Tensor Fields
Tensors occur in many areas of science and engineering. Especially, they are used to describe charge, mass and energy transport (i.e. electrical conductivity tensor, diffusion ten...
Mario Hlawitschka, Gerik Scheuermann