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|Title:||Contradiction and correlation for camera overlap estimation|
Van Den Hengel, A.
|Citation:||IEEE International Conference on the 6th Video and Signal Based Surveillance, Sep. 2009: pp.268-273|
|Conference Name:||IEEE International Conference on Advanced Video & Signal Based Surveillance (6th : 2009 : Italy)|
|Alex Cichowski, Christopher Madden, Anton van den Hengel, Rhys Hill, Henry Detmold and Anthony Dick|
|Abstract:||An accurate estimate of camera overlap is a key enabler for efficient network-wide surveillance processing (e.g. intercamera 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 set up in an office space, where the exclusion estimator showed the best performance.|
|Appears in Collections:||Computer Science publications|
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