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SIBGRAPI
2003
IEEE
16 years 3 days ago
Helical CT Reconstruction from Wide Cone-Beam Angle Data Using ART
We report on new results on the use of Algebraic Reconstruction Techniques (ART) for reconstructing from helical cone-beam Computerized Tomography (CT) data. We investigate two va...
Bruno M. Carvalho, Gabor T. Herman
SP
2003
IEEE
16 years 3 days ago
Random Key Predistribution Schemes for Sensor Networks
Key establishment in sensor networks is a challenging problem because asymmetric key cryptosystems are unsuitable for use in resource constrained sensor nodes, and also because th...
Haowen Chan, Adrian Perrig, Dawn Xiaodong Song
VISUALIZATION
2003
IEEE
16 years 3 days ago
Visibility based methods and assessment for detail-recovery
In this paper we propose a new method for the creation of normal maps for recovering the detail on simplified meshes and a set of objective techniques to metrically evaluate the ...
Marco Tarini, Paolo Cignoni, Roberto Scopigno
VISUALIZATION
2003
IEEE
16 years 3 days ago
A Texture-Based Framework for Spacetime-Coherent Visualization of Time-Dependent Vector Fields
We propose Unsteady Flow Advection–Convolution (UFAC) as a novel visualization approach for unsteady flows. It performs time evolution governed by pathlines, but builds spatial...
Daniel Weiskopf, Gordon Erlebacher, Thomas Ertl
COMPGEOM
2003
ACM
16 years 3 days ago
Billboard clouds
We introduce billboard clouds – a new approach for extreme simplification in the context of real-time rendering. 3D models are simplified onto a set of planes with texture and...
Xavier Décoret, Frédo Durand, Fran&c...