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Author(s): Carla S. Fernandes
Ricardo P. Dias
J. M. Nóbrega
Isabel M. Afonso
Luís F. Melo
João M. Maia
Title: Thermal behaviour of stirred yoghurt during cooling in plate heat exchangers
Issue Date: 2006
Abstract: In this paper we present a management model to deal with the problem of tracking a large number offeatures during long image sequences. Some usual difficulties are related to this problem: features may betemporarily occluded or might even have disappeared definitively; the computational cost involved shouldalways be reduced to the strictly necessary. The proposed Net Present Value (NPV) model, based on theeconomic Theory of Capital, considers the tracking of each missing feature as an investment. Thus, using theNPV criterion, with adequate receipt and outlay functions, each occluded feature may be kept on tracking or itmay be excluded of the tracking process depending on its historical behavior. This methodology may be appliedto any tracking system as long as the tracking results may be evaluated in each temporal step. Experimentalresults, both on synthetic and real image sequences, which validate our model, will be also presented.
Subject: Ciências Tecnológicas
Technological sciences
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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