Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/7429
Título: Parallel implementation of a robust optical flow technique
Autores/as: Sánchez, Javier 
Monzón López, Nelson Manuel 
Salgado de la Nuez, Agustín Javier 
Clasificación UNESCO: 220990 Tratamiento digital. Imágenes
Palabras clave: Optical flow
Variational methods
PDE
Multicore
OpenMP, et al.
Fecha de publicación: 2012
Publicación seriada: CTIM Technical Report 
Resumen: The accuracy and performance of current variational optical ow methods have considerably increased during the last years. The complexity of these techniques is high and enough care has to be taken for the implementation. The aim of this work is to present a comprehensible implementation of recent variational optical flow methods. We start with an energy model that relies on brightness and gradient constancy terms and a ow-based smoothness term. We minimize this energy model and derive an e cient implicit numerical scheme. In the experimental results, we evaluate the accuracy and performance of this implementation with the Middlebury benchmark database. We show that it is a competitive solution with respect to current methods in the literature. In order to increase the performance, we use a simple strategy to parallelize the execution on multi-core processors.
URI: http://hdl.handle.net/10553/7429
ISSN: 2254-2353
Fuente: CTIM technical report [ISSN 2254-2353] Las Palmas de Gran Canaria: Centro de Tecnologías de la Imágen,n. 1, p. 1-16, (2012)
Derechos: by-nc-nd
Colección:Artículos
miniatura
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