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Mostrando ítems 11-20 de 44
Artículo
Some Considerations about Geometric Algebras in relation with Visibility in Computer Graphics
(Universidad de Sevilla, 2011)
We give some considerations about the use of geometric algebras in the context of visibility, showing some advantages and disadvantages for their use as the underlying framework. We emphasize the use of conformal geometric ...
Artículo
TKDetection: a software to detect and segment wood knots
(Universidad de Sevilla, 2013)
TKDetection is a software proposing to segment the wood knots obtained from X-Ray Computed Tomography (CT) scanners. It implements algorithms combining tools of image analysis and discrete geometry, like connected component ...
Artículo
Improved Locally Adaptive Sampling Criterion for Topology Preserving Reconstruction of Multiple Regions
(Universidad de Sevilla, 2010)
Volume based digitization processes often deal with non-manifold shapes. Even though many reconstruction algorithms have been proposed for non-manifold surfaces, they usually don’t preserve topological properties. Only ...
Artículo
Image Segmentation Inspired by Cellular Models using hardware programming
(Universidad de Sevilla, 2010)
Several features of image segmentation make it suitable for bio–inspired techniques. It can be parallelized, locally solved and the input data can be easily encoded using representations inspired by nature. In this paper, ...
Artículo
Counting excellent discrete Morse functions on compact orientable surfaces
(Universidad de Sevilla, 2010)
We obtain the number of non-homologically equivalent excellent discrete Morse functions defined on compact orientable surfaces. This work is a continuation of the study which has been done in [2, 4] for graphs.
Artículo
An application for gait recognition using persistent homology
(Universidad de Sevilla, 2013)
This Demo presents an application for gait recognition using persistent homology. Using a background subtraction approach, a silhouette sequence is obtained from a camera in a controlled environment. A border simplicial ...
Artículo
Combining regular decimation and dual graph contraction for hierarchical image segmentation
(Universidad de Sevilla, 2010)
The Bounded Irregular Pyramid (BIP) is a hierarchical structure for image representation whose aim is to combine concepts from regular and irregular pyramids. The data structure is a combination of the simplest regular and ...
Artículo
Tracking features in image sequences using discrete Morse functions
(Universidad de Sevilla, 2010)
The goal of this contribution is to present an application of discrete Morse theory to tracking features in image sequences. The proposed algorithm can be used for tracking moving figures in a filmed scene, for tracking ...
Artículo
Invariant Spectral Hashing of Image Saliency Graph
(Universidad de Sevilla, 2010)
Image hashing is the process of associating a short vector of bits to an image. The resulting summaries are useful in many applications including image indexing, image authentication and pattern recognition. These hashes ...
Artículo
Homological Groups, Spanning Forests and Membrane Computing
(Universidad de Sevilla, 2011)
In this paper we present a new way to determine the geometrical objects associated to the Homology groups of a 2D-digital binary image. In fact, using Membrane Computing with techniques of spanning forests, we are able to ...