A videosurveillance data browsing software architecture for forensics: from trajectories similarities to video fragments

Authors:
Manuel Aravecchia;Simone Calderara;Sara Chiossi;Rita Cucchiara
Affiliations:
DII, University of Modena and Reggio Emilia, Modena, Italy;DII, University of Modena and Reggio Emilia, Modena, Italy;DII, University of Modena and Reggio Emilia, Modena, Italy;DII, University of Modena and Reggio Emilia, Modena, Italy
Venue:
Proceedings of the 2nd ACM workshop on Multimedia in forensics, security and intelligence
Year:
2010

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Abstract

The information contained in digital video surveillance repositories can present relevant hints, when not even legal evidence, during investigations. As the amount of video data often forbids manual search, some tools have been developed during the past years in order to aid investigators in the look up process. We propose an application for forensic video analysis which aims at analysing the activities in a given scenario, particularly focusing on trajectories followed by people and their visual appearances. The recorded videos can be browsed by investigators thanks to a user-friendly interface, allowing easy information retrieval, through the choice of the best mining strategy. The underlying application architecture implements different feature and query models as well as query optimization strategies in order to return the best response in terms of both efficacy and efficiency.