Background subtraction for PTZ cameras performing a guard tour and application to cameras with very low frame rate

Authors:
C. Guillot;M. Taron;Patrick Sayd;Q. C. Pham;C. Tilmant;J. M. Lavest
Affiliations:
CEA, LIST, Vision and Content Engineering Laboratory, Gif-sur-Yvette, France;CEA, LIST, Vision and Content Engineering Laboratory, Gif-sur-Yvette, France;CEA, LIST, Vision and Content Engineering Laboratory, Gif-sur-Yvette, France;CEA, LIST, Vision and Content Engineering Laboratory, Gif-sur-Yvette, France;LASMEA UMR 6602, PRES Clermont Université/CNRS, Aubière cedex, France;LASMEA UMR 6602, PRES Clermont Université/CNRS, Aubière cedex, France
Venue:
ACCV'10 Proceedings of the 2010 international conference on Computer vision - Volume Part I
Year:
2010

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Abstract

Pan Tilt Zoom cameras have the ability to cover wide areas with an adapted resolution. Since the logical downside of high resolution is a limited field of view, a guard tour can be used to monitor a large scene of interest. However, this greatly increases the duration between frames associated to a specific location. This constraint makes most background algorithms ineffective. In this article we propose a background subtraction algorithm suitable to cameras with very low frame rate. Its main interest consists in the resulting robustness to sudden illumination changes. The background model which describes a wide scene of interest consisting of a collection of images can thus be successfully maintained. This algorithm is compared with the state of the art and a discussion regarding its properties follows.