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» Estimation of Non-Cartesian Local Structure Tensor Fields
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TIP
2002
134views more  TIP 2002»
13 years 7 months ago
Curvature of n-dimensional space curves in grey-value images
Local curvature represents an important shape parameter of space curves which are well described by differential geometry. We have developed an estimator for local curvature of spa...
Bernd Rieger, Lucas J. van Vliet
ICIP
2004
IEEE
14 years 9 months ago
Audio-visual flow -a variational approach to multi-modal flow estimation
Just as a motion field is associated to a moving object, an audio field can be associated to an object that can behave as a sound source. The flow field of such a sound source whi...
Raffay Hamid, Aaron F. Bobick, Anthony J. Yezzi
ICPR
2002
IEEE
14 years 8 months ago
Curvature Estimation of Surfaces in 3D Grey-Value Images
In this paper we present a novel method to estimate curvature of iso grey-level surfaces in grey-value images. Our method succeeds where isophote curvature fails. There is neither...
Bernd Rieger, Frederik J. Timmermans, Lucas J. van...
DAGM
1997
Springer
13 years 11 months ago
A Tensor Approach for Precise Computation of Dense Displacement Vector Fields
Using the 3-dimensional structure tensor, dense displacement vector fields (DVF) can be computed with subpixel accuracy. The approach is based on the detection of linear symmetrie...
Horst Haußecker, Bernd Jähne
ICCV
1999
IEEE
13 years 12 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