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ICCV
2001
IEEE
14 years 9 months ago
Gradient Vector Flow Fast Geodesic Active Contours
This paper proposes a new front propagation flow for boundary extraction. The proposed framework is inspired by the geodesic active contour model and leads to a paradigm that is r...
Nikos Paragios, Olivier Mellina-Gottardo, Visvanat...
ISBI
2008
IEEE
14 years 8 months ago
Fast nonlocal filtering applied to electron cryomicroscopy
We present an efficient algorithm for nonlocal image filtering with applications in electron cryomicroscopy. Our denoising algorithm is a rewriting of the recently proposed nonloc...
Alexandre Cunha, Grant J. Jensen, Jérô...
CGF
2008
128views more  CGF 2008»
13 years 7 months ago
Hierarchical Convex Approximation of 3D Shapes for Fast Region Selection
Given a 3D solid model S represented by a tetrahedral mesh, we describe a novel algorithm to compute a hierarchy of convex polyhedra that tightly enclose S. The hierarchy can be b...
Marco Attene, Michela Mortara, Michela Spagnuolo, ...
EUROPAR
2009
Springer
13 years 11 months ago
Fast and Efficient Synchronization and Communication Collective Primitives for Dual Cell-Based Blades
The Cell Broadband Engine (Cell BE) is a heterogeneous multi-core processor specifically designed to exploit thread-level parallelism. Its memory model comprehends a common shared ...
Epifanio Gaona, Juan Fernández, Manuel E. A...
EUROGRAPHICS
2010
Eurographics
14 years 3 months ago
Fast Ray Sorting and Breadth-First Packet Traversal for GPU Ray Tracing
We present a novel approach to ray tracing execution on commodity graphics hardware using CUDA. We decompose a standard ray tracing algorithm into several data-parallel stages tha...
Kirill Garanzha and Charles Loop