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EGH
2009
Springer
13 years 8 months ago
Object partitioning considered harmful: space subdivision for BVHs
A major factor for the efficiency of ray tracing is the use of good acceleration structures. Recently, bounding volume hierarchies (BVHs) have become the preferred acceleration st...
Stefan Popov, Iliyan Georgiev, Rossen Dimov, Phili...

Publication
202views
15 years 6 months ago
Distance-based Speed Functions for Level Set Methods in Image Segmentation
"Level set methods are a well-known means for the segmentation of objects in image data. In this paper, we discuss a class of easy to calculate terms based on distance measure...
Karsten Rink and Klaus Tonnies
ISBI
2004
IEEE
14 years 11 months ago
A Hierarchical Algorithm for Fast Backprojection in Helical Cone-Beam Tomography
Existing algorithms for exact helical cone beam (HCB) tomographic reconstruction involve a 3-D backprojection step, which dominates the the computational cost of the algorithm. We...
Jeffrey Brokish, Yoram Bresler
GW
2007
Springer
199views Biometrics» more  GW 2007»
14 years 4 months ago
Robust Tracking for Processing of Videos of Communication's Gestures
This paper presents a method of image processing used in a mono-vision system in order to study semiotic gestures. We present a robust method to track the hands and face of a perso...
Frédérick Gianni, Christophe Collet,...
PG
2003
IEEE
14 years 3 months ago
Interactive Visualization of Complex Real-World Light Sources
Interactive visualization of complex, real-world light sources has so far not been feasible. In this paper, we present an hardware accelerated direct lighting algorithm based on a...
Xavier Granier, Michael Goesele, Wolfgang Heidrich...