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» On sparse signal representations
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GIS
2008
ACM
15 years 7 months ago
Sparse terrain pyramids
Bintrees based on longest edge bisection and hierarchies of diamonds are popular multiresolution techniques on regularly sampled terrain datasets. In this work, we consider sparse...
Kenneth Weiss, Leila De Floriani
CORR
2010
Springer
253views Education» more  CORR 2010»
15 years 6 months ago
Fast Inference in Sparse Coding Algorithms with Applications to Object Recognition
Adaptive sparse coding methods learn a possibly overcomplete set of basis functions, such that natural image patches can be reconstructed by linearly combining a small subset of t...
Koray Kavukcuoglu, Marc'Aurelio Ranzato, Yann LeCu...
ECCV
2004
Springer
16 years 8 months ago
Sparse Finite Elements for Geodesic Contours with Level-Sets
Level-set methods have been shown to be an effective way to solve optimisation problems that involve closed curves. They are well known for their capacity to deal with flexible top...
Martin Weber, Andrew Blake, Roberto Cipolla
I3D
2010
ACM
16 years 3 months ago
Efficient Sparse Voxel Octrees
In this paper we examine the possibilities of using voxel representations as a generic way for expressing complex and feature-rich geometry on current and future GPUs. We present ...
Samuli Laine, Tero Karras
BC
2007
100views more  BC 2007»
15 years 6 months ago
Neuronal selectivity, population sparseness, and ergodicity in the inferior temporal visual cortex
Abstract Thesparsenessoftheencodingofstimulibysingle neurons and by populations of neurons is fundamental to understanding the efficiency and capacity of representations in the br...
Leonardo Franco, Edmund T. Rolls, Nikolaos C. Agge...