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IBPRIA
2007
Springer
8 years 8 months ago
Using Graphics Hardware for Enhancing Edge and Circle Detection
Antonio Ruiz, Manuel Ujaldon, Nicolas Guil
IBPRIA
2007
Springer
8 years 8 months ago
Segmentation of Rigid Motion from Non-rigid 2D Trajectories
Abstract. In this paper we evaluate an automatic segmentation algorithm able to identify the set of rigidly moving points within a deformable object given the 2D measurements acqui...
Alessio Del Bue, Xavier Lladó, Lourdes de A...
IBPRIA
2007
Springer
8 years 8 months ago
Automatic Learning of Conceptual Knowledge in Image Sequences for Human Behavior Interpretation
This work describes an approach for the interpretation and explanation of human behavior in image sequences, within the context of a Cognitive Vision System. The information source...
Pau Baiget, Carles Fernández Tena, F. Xavie...
IBPRIA
2007
Springer
8 years 8 months ago
A Density-Based Data Reduction Algorithm for Robust Estimators
In this paper we present a non parametric density-based data reduction technique designed to be used in robust parameter estimation problems. Existing approaches are focused on red...
Luis Ferraz, Ramon Lluis Felip, Brais Martí...
IBPRIA
2007
Springer
8 years 10 months ago
Random Forest for Gene Expression Based Cancer Classification: Overlooked Issues
Random forest is a collection (ensemble) of decision trees. It is a popular ensemble technique in pattern recognition. In this article, we apply random forest for cancer classifica...
Oleg Okun, Helen Priisalu
IBPRIA
2007
Springer
8 years 10 months ago
Efficiently Downdating, Composing and Splitting Singular Value Decompositions Preserving the Mean Information
Three methods for the efficient downdating, composition and splitting of low rank singular value decompositions are proposed. They are formulated in a closed form, considering the ...
Javier Melenchón, Elisa Martínez
IBPRIA
2007
Springer
8 years 10 months ago
Structure Restriction for Tracking Through Multiple Views and Occlusions
Brais Martínez, A. Pérez, Luis Ferra...
IBPRIA
2007
Springer
8 years 10 months ago
On-Line Classification of Human Activities
In this paper we address the problem of on-line recognition of human activities taking place in a public area such as a shopping center. We consider standard activities; namely, en...
Jacinto C. Nascimento, Mário A. T. Figueire...
IBPRIA
2007
Springer
8 years 10 months ago
New Measure for Shape Elongation
Shape elongation is one of the basic shape descriptors that has a very clear intuitive meaning. That is reason for its applicability in many shape classification tasks. In this pap...
Milos Stojmenovic, Jovisa D. Zunic
IBPRIA
2007
Springer
8 years 10 months ago
Non Parametric Classification of Human Interaction
This paper presents a non parametric method for classifying interactions between two people as taken from a video camera. A nearest neighbour classifier that uses trajectory matchi...
Scott Blunsden, Ernesto L. Andrade, Robert B. Fish...
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