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CVPR
2012
IEEE
12 years 1 months ago
Discrete texture traces: Topological representation of geometric context
Modeling representations of image patches that are quasi-invariant to spatial deformations is an important problem in computer vision. In this paper, we propose a novel concept, t...
Jan Ernst, Maneesh Kumar Singh, Visvanathan Ramesh
BMVC
2010
13 years 9 months ago
Background Modelling on Tensor Field for Foreground Segmentation
The paper proposes a new method to perform foreground detection by means of background modeling using the tensor concept. Sometimes, statistical modelling directly on image values...
Rui Caseiro, Jorge Batista, Pedro Martins
JMIV
2002
129views more  JMIV 2002»
13 years 11 months ago
Grain Filters
Motivated by operators simplifying the topographic map of a function, we study the theoretical properties of two kinds of "grain" filters. The first category, discovered ...
Vicent Caselles, Pascal Monasse
CSC
2009
14 years 16 days ago
Nonsingularity Study of SAI Preconditioners for M-matrices
In this paper, we study the theoretical properties of sparse approximate inverse (SAI) preconditioners. Particularly, we show that for Mmatrices, nonnegativeness is the key to com...
Kai Wang, Rui Wang