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CVPR
2007
IEEE
15 years 9 months ago
Hierarchical Structuring of Data on Manifolds
Manifold learning methods are promising data analysis tools. However, if we locate a new test sample on the manifold, we have to find its embedding by making use of the learned e...
Jun Li, Pengwei Hao
119
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ECCV
2006
Springer
16 years 5 months ago
Curvature-Preserving Regularization of Multi-valued Images Using PDE's
Abstract. We are interested in diffusion PDE's for smoothing multi-valued images in an anisotropic manner. By pointing out the pros and cons of existing tensor-driven regulari...
David Tschumperlé
ICIP
2008
IEEE
16 years 5 months ago
Tracking through changes in scale
We propose a tracking system that is especially well-suited to tracking targets which change drastically in size or appearance. To accomplish this, we employ a fast, two phase tem...
Allen Tannenbaum, Arie Nakhmani, James G. Malcolm,...
ICPR
2008
IEEE
16 years 4 months ago
Segmentation robust to the vignette effect for machine vision systems
The vignette effect (radial fall-off) is commonly encountered in images obtained through certain image acquisition setups and can seriously hinder automatic analysis processes. In...
Dimosthenis Karatzas, Marçal Rusiñol...
ICPR
2008
IEEE
16 years 4 months ago
3D Shape Context and Distance Transform for action recognition
We propose the use of 3D (2D+time) Shape Context to recognize the spatial and temporal details inherent in human actions. We represent an action in a video sequence by a 3D point ...
Franziska Meier, Irfan A. Essa, Matthias Grundmann