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Real-Time Unattended Package Detection Using a Syntactic Approach

dc.contributor.advisorChellappa, Ramaen_US
dc.contributor.authorRosenbush, Gavin E.en_US
dc.date.accessioned2007-09-28T15:03:12Z
dc.date.available2007-09-28T15:03:12Z
dc.date.issued2007-08-13en_US
dc.identifier.urihttp://hdl.handle.net/1903/7396
dc.description.abstractDetecting unattended packages in video is a challenging surveillance problem. The goal is to detect packages and their owners, determine relationships between them and the environment, and recognize when an owner abandons a package. Concurrent events and complex interactions create problems for existing motion-based systems. Errors in target detection and tracking caused by shadows, noise, and occlusions create additional problems. We present a real-time system that addresses these issues and recognizes the unattended package event syntactically using a stochastic attribute grammar. Our system can detect events that occur concurrently, are corrupted by target and detection errors, or contain packages hidden behind other objects such as trash cans. In this thesis, we review existing motion-based methods, then present our system and show results on unattended package detection in situations that would cause motion-based systems to fail.en_US
dc.format.extent7131513 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleReal-Time Unattended Package Detection Using a Syntactic Approachen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentElectrical Engineeringen_US
dc.subject.pqcontrolledEngineering, Electronics and Electricalen_US
dc.subject.pqcontrolledComputer Scienceen_US
dc.subject.pquncontrolledattribute grammaren_US
dc.subject.pquncontrolledsyntactic pattern recognition;event recognition;unattended package detectionen_US


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