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IEEEMSP
2002
IEEE
100views Multimedia» more  IEEEMSP 2002»
13 years 9 months ago
R-D analysis of adaptive edge representations
— This paper presents a Rate-Distortion analysis for a simple horizon edge image model. A quadtree with anisotropy and rotation is performed on this kind of image, giving a toy m...
Rosa M. Figueras i Ventura, Lorenzo Granai, Pierre...
ICIP
2003
IEEE
14 years 6 months ago
Quantization of adaptive 2D wavelet decompositions
Classical linear wavelet representations of images have the drawback that they are not well-suited to represent edge information. To overcome this problem, nonlinear multiresoluti...
Béatrice Pesquet-Popescu, Henk J. A. M. Hei...
ICIAR
2004
Springer
13 years 10 months ago
Color Image Segmentation Using Energy Minimization on a Quadtree Representation
Abstract. In this article we present the results of an unsupervised segmentation algorithm based on a multiresolution method. The algorithm uses color and edge information in an it...
Adolfo Martínez Usó, Filiberto Pla, ...
GBRPR
2005
Springer
13 years 10 months ago
Hypergraph-Based Image Representation
Abstract. An appropriate image representation induces some good image treatment algorithms. Hypergraph theory is a theory of finite combinatorial sets, modeling a lot of problems ...
Alain Bretto, Luc Gillibert
DAGSTUHL
2010
13 years 6 months ago
On Curved Simplicial Elements and Best Quadratic Spline Approximation for Hierarchical Data Representation
We present a method for hierarchical data approximation using curved quadratic simplicial elements for domain decomposition. Scientific data defined over two- or three-dimensional ...
Bernd Hamann