2009 Sixth IEEE International Conference on Advanced Video and Signal Based Surveillance (2009)
Sept. 2, 2009 to Sept. 4, 2009
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/AVSS.2009.62
An accurate estimate of camera overlap is a key enabler for efficient network-wide surveillance processing (e.g. inter-camera tracking), especially in large-scale surveillance networks. Techniques based on contradictions in pair-wise occupancy data, such as the exclusion approach, have advantages in robustness and efficiency that make them particularly well suited for large surveillance networks. Correlation techniques share some of these advantages,but have a better understood statistical basis. This paper evaluates a set of contradiction and correlation techniques, using a novel metric, search space precision-recall. This metric reflects the activity-based overlap estimation required for camera handover, such as would be used in inter-camera tracking.Results are reported for a range of networks, including a 24-camera network setup in an office space, where the exclusion estimator showed the best performance.
Camera Overlap, Topology, Surveillance, Evaluation, Exclusion
R. Hill, A. Cichowski, H. Detmold, C. Madden, A. Dick and A. van den Hengel, "Contradiction and Correlation for Camera Overlap Estimation," 2009 Sixth IEEE International Conference on Advanced Video and Signal Based Surveillance(AVSS), Genova, Italy, 2009, pp. 268-273.