Concept

Nowhere dense set

Related publications (26)

Dense Deformation Field Estimation for Atlas-based Segmentation of Pathological MR Brain Images

Jean-Philippe Thiran, Meritxell Bach Cuadra, Valérie Duay, Benoît Macq, Mathieu De Craene

Atlas registration is a recognized paradigm for the automatic segmentation of normal MR brain images. Unfortunately, atlas-based segmentation has been of limited use in presence of large space-occupying lesions. In fact, brain deformations induced by such ...

2006

Cognitive navigation based on non-uniform Gabor space sampling, unsupervised growing networks, and reinforcement learning

Wulfram Gerstner

We study spatial learning and navigation for autonomous agents. A state space representation is constructed by unsupervised Hebbian learning during exploration. As a result of learning, a representation of the continuous two-dimensional (2-D) manifold in t ...

Institute of Electrical and Electronics Engineers2004

Effects of an early or a late heat treatment on the microstructure and composition of inner C-S-H products of Portland cement mortars

Karen Scrivener

The influence of both early and late heat treatments on the microstructure and on the hydration products of Portland cement mortars has been investigated. The mortars were given either a 4-h or 28-day precure at 20 °C before heating at 90 °C for 12 h and w ...

2002

Threshold photoionization at high resolution

Andreas Osterwalder

Because the spectral d. of Rydberg states scales with the third power of the principal quantum no. n, the region immediately below at. and mol. ionization thresholds is spectrally very dense. Studying the properties of high at. and mol. Rydberg states just ...

2001

Optimization of photopolymerized bioerodible hydrogel properties for adhesion prevention

Jeffrey Alan Hubbell

The aim of this study was to optimize the properties of a lubricious bioerodible hydrogel barrier for the prevention of postoperative adhesions. Water-soluble macromers based on block copolymers of poly(ethylene glycol) (PEG) and poly(lactic acid) or poly( ...

1994

A Parallel Stereo Algorithm that Produces Dense Depth Maps and Preserves Image Features

Pascal Fua

We have developed a stereo algorithm that relies on grey level correlation followed by interpolation using an energy based technique. During the correlation phase the two images play a symmetric role and we use a validity criterion for the matches that eli ...

Springer Verlag1993

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