Rank estimation of trajectory matrix in motion segmentation

A novel technique for estimating the rank of the trajectory matrix in the local subspace affinity (LSA) motion segmentation framework is presented. This new rank estimation is based on the relationship between the estimated rank of the trajectory matrix and the affinity matrix built with LSA. The re...

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Detalhes bibliográficos
Autores: Zappella, Luca, Lladó Bardera, Xavier, Salvi, Joaquim
Tipo de documento: artigo
Data de publicação:2009
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/2253
Acesso em linha:http://hdl.handle.net/10256/2253
Access Level:Acceso aberto
Palavra-chave:Imatges -- Processament
Imatges -- Segmentació
Matrius (Àlgebra)
Visió per ordinador
Computer vision
Image processing
Imaging segmentation
Matrices
Descrição
Resumo:A novel technique for estimating the rank of the trajectory matrix in the local subspace affinity (LSA) motion segmentation framework is presented. This new rank estimation is based on the relationship between the estimated rank of the trajectory matrix and the affinity matrix built with LSA. The result is an enhanced model selection technique for trajectory matrix rank estimation by which it is possible to automate LSA, without requiring any a priori knowledge, and to improve the final segmentation