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Now showing items 21-30 of 51
Article
Topology-preserving perceptual segmentation using the Combinatorial Pyramid
(Universidad de Sevilla, 2010)
Scene understanding and other high-level visual tasks usually rely on segmenting the captured images for dealing with a more efficient mid-level representation. Although this segmentation stage will consider topological ...
Article
Methods of computational topology for Solar Activity forecasting (Extended abstract)
(Universidad de Sevilla, 2015)
Solar activity is a space-time complex of events which produced by the Sun magnetic fields. One of the results of this activity is a huge plasma ejection which called solar flares. The solar flares occurs mainly in the ...
Article
Algorithm to Compute a Minimal Length Basis of Representative Cocycles of Cohomology Generators
(Universidad de Sevilla, 2010)
An algorithm to compute a minimal length basis of representative cocycles of cohomology generators for 2D images is proposed. We based the computations on combinatorial pyramids foreseeing its future extension to 3D objects. ...
Article
Strong separating (k, k)−surfaces on Z3
(Universidad de Sevilla, 2010)
For each adjacency pair (k, k) != (6, 6), k, k ∈ {6, 18, 26}, we introduce a new family Skk of surfaces in the discrete space Z3 that strictly contains several families of surfaces previously defined, and other objects ...
Article
Article
Distributed boundary tracking using alpha and Delaunay-Cech shapes
(Universidad de Sevilla, 2013)
We demonstrate real time tracking of systematic failures in sensor networks, using distributed computation of the α−shape derived from the network. More generally, our work may be applied to tracking the boundary of any ...
Article
Calibration in optical graph recognition
(Universidad de Sevilla, 2013)
Graph drawing is the process of transforming the topological structure of a graph into a graphical representation. Primarily, it maps vertices to points and displays them by icons, and it maps edges to Jordan curves ...
Article
Persistent homology and partial matching of shapes
(Universidad de Sevilla, 2010)
The ability to perform not only global matching but also partial matching is in-vestigated in computer vision and computer graphics in order to evaluate the performance of shape descriptors. In my talk I will consider the ...
Article
On automation and certification of a homological method to process biomedical digital images
(Universidad de Sevilla, 2011)
In this paper a methodology to extract and compute homological information from biomedical images is proposed; automating some processes, up to now, manually done. The main features of our approach are the usage of several ...