Optimal camera placement for automated surveillance Tasks

Robert Bodor, Andrew Drenner, Paul Schrater, Nikolaos Papanikolopoulos

Research output: Contribution to journalArticlepeer-review

79 Scopus citations

Abstract

Camera placement has an enormous impact on the performance of vision systems, but the best placement to maximize performance depends on the purpose of the system. As a result, this paper focuses largely on the problem of task-specific camera placement. We propose a new camera placement method that optimizes views to provide the highest resolution images of objects and motions in the scene that are critical for the performance of some specified task (e.g. motion recognition, visual metrology, part identification, etc.). A general analytical formulation of the observation problem is developed in terms of motion statistics of a scene and resolution of observed actions resulting in an aggregate observability measure. The goal of this system is to optimize across multiple cameras the aggregate observability of the set of actions performed in a defined area. The method considers dynamic and unpredictable environments, where the subject of interest changes in time. It does not attempt to measure or reconstruct surfaces or objects, and does not use an internal model of the subjects for reference. As a result, this method differs significantly in its core formulation from camera placement solutions applied to problems such as inspection, reconstruction or the Art Gallery class of problems. We present tests of the system's optimized camera placement solutions using real-world data in both indoor and outdoor situations and robot-based experimentation using an all terrain robot vehicle-Jr robot in an indoor setting.

Original languageEnglish (US)
Pages (from-to)257-295
Number of pages39
JournalJournal of Intelligent and Robotic Systems: Theory and Applications
Volume50
Issue number3
DOIs
StatePublished - Nov 2007

Bibliographical note

Funding Information:
Acknowledgements This work was supported by the National Science Foundation through grant #IIS-0219863, #CNS-0224363, #CNS-0324864, and #CNS-0420836, the Minnesota Department of Transportation, the ITS Institute at the University of Minnesota, and an NSF Graduate Research Fellowship. Portions of this work have appeared in works by Bodor et al. [4, 6]. The authors would like to recognize and thank Osama Masoud for his editorial assistance with this paper, and Michael Janssen for his assistance with the ATRV-Jr robot.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

  • Camera networks
  • Observability
  • Optimization
  • Robot/camera placement
  • Sensor networks
  • Vision-based robotics

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