We report on a system for automatically obtaining high-resolution images of surveillance targets. The system, beginning from a framed target, uses the presence of faces as a cue to initiate a real-time active face tracking process. Using a single pan-tilt-zoom (PTZ) camera, the system tracks the target while zooming in for a closeup image of the face. The system tracks feature points on a target face, and a simple yet reliable control strategy is used in conjunction with robust target localization to guide a PTZ camera to a facial closeup of the target. We report on experiments with our system in real surveillance environments
Improving evidential quality of surveillance imagery through active face tracking / Bagdanov, Andrew D; Del Bimbo, Alberto; Nunziati, Walter. - STAMPA. - 3:(2006), pp. 1200-1203. (Intervento presentato al convegno 18th International Conference on Pattern Recognition, ICPR 2006 tenutosi a Hong Kong, chn nel 2006) [10.1109/ICPR.2006.700].
Improving evidential quality of surveillance imagery through active face tracking
BAGDANOV, ANDREW DAVID;DEL BIMBO, ALBERTO;NUNZIATI, WALTER
2006
Abstract
We report on a system for automatically obtaining high-resolution images of surveillance targets. The system, beginning from a framed target, uses the presence of faces as a cue to initiate a real-time active face tracking process. Using a single pan-tilt-zoom (PTZ) camera, the system tracks the target while zooming in for a closeup image of the face. The system tracks feature points on a target face, and a simple yet reliable control strategy is used in conjunction with robust target localization to guide a PTZ camera to a facial closeup of the target. We report on experiments with our system in real surveillance environments
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