Object Matching in Distributed Video Surveillance Systems by LDA-Based Appearance Descriptors

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Establishing correspondences among object instances is still challenging in multi-camera surveillance systems, especially when the cameras’ fields of view are non-overlapping. Spatiotemporal constraints can help in solving the correspondence problem but still leave a wide margin of uncertainty. One way to reduce this uncertainty is to use ap- pearance information about the moving objects in the site. In this paper we present the preliminary results of a new method that can capture salient appearance characteristics at each camera node in the network. A Latent Dirichlet Allocation (LDA) model is created and maintained at each node in the camera network. Each object is encoded in terms of the LDA bag-of-words model for appearance. The encoded appearance is then used to establish probable matching across cameras. Preliminary experiments are conducted on a dataset of 20 individuals and comparison against Madden’s I-MCHR is reported.
Lingua originaleEnglish
Titolo della pubblicazione ospiteImage Analysis and Processing
Numero di pagine11
Stato di pubblicazionePublished - 2009

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All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.1700.1700???


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