A new approach to camera hand-off without camera calibration for the general scene with non-planar ground

Jo, Younggwan; Han, Jishu

doi:10.1145/1178782.1178811

Cited by 21 publications

(19 citation statements)

References 13 publications

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“…For continuous tracking across multiple cameras, [8] propose the use of a handoff function, which is defined as the ratio of co-occurrence to occurrence for point pairs in two views. Their approach does not require calibration or 3D scene information.…”

Section: Related Workmentioning

confidence: 99%

Collaborative sensing via local negotiations in ad hoc networks of smart cameras

Qureshi

2010

Proceedings of the Fourth ACM/IEEE International Conference on Distributed Smart Cameras

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The paper develops an ad hoc network of active pan/tilt/zoom (PTZ) and passive wide field-of-view (FOV) cameras capable of carrying out observation tasks autonomously. The network is assumed to be uncalibrated, lacks a central controller, and relies upon local decision making at each node and inter-node negotiations for its overall behavior. To this end, we develop intelligent camera nodes (both active and passive) that can perform multiple observation tasks simultaneously. We also present a negotiation protocol that allows cameras nodes to setup collaborative tasks in a purely distributed manner. Camera assignments conflicts that invariably arise in such networks are naturally and gracefully handled through at-node processing and inter-node negotiations. We expect the proposed camera network to be highly scalable due to the lack of any centralized control.

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Section: Related Workmentioning

confidence: 99%

Collaborative sensing via local negotiations in ad hoc networks of smart cameras

Qureshi

2010

Proceedings of the Fourth ACM/IEEE International Conference on Distributed Smart Cameras

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“…The lookup table encodes the suitability of a camera to observe a specific location. Jo and Han [17] propose the use of a handoff function for continuous tracking across multiple cameras. The handoff function is defined as the ratio of co-occurrence to occurrence for point pairs in two views.…”

Section: Related Workmentioning

confidence: 99%

Planning ahead for PTZ camera assignment and handoff

Qureshi

Terzopoulos

2009

2009 Third ACM/IEEE International Conference on Distributed Smart Cameras (ICDSC)

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Abstract-We present a visual sensor network, comprising wide field-of-view (FOV) passive cameras and pan/tilt/zoom (PTZ) active cameras, which automatically captures high quality surveillance video of selected pedestrians during their prolonged presence in an area of interest. A wide-FOV static camera can track multiple pedestrians, while any PTZ active camera can follow a single pedestrian at a time. The proactive control of multiple PTZ cameras is required to record seamless, high quality video of a roaming individual despite the observational constraints of the different cameras. We formulate PTZ camera assignment and handoff as a planning problem whose solution achieves optimal camera assignment with respect to predefined observational goals.

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“…Ellis et al (2003) have detected the entry and exit zones using independent trajectories acquired in each view, and thus, have established correspondences between the objects by matching the zones. Jo and Han (2006) have computed the co-occurrence-to-occurrence ratio of all point pairs between two views, segmented the correspondences from the pairs, and designed a handoff table.…”

Section: Camera Calibration + 3d Scene Recoverymentioning

confidence: 99%

“…This paper is closely related with Jo and Han (2006). However, our approach different in three main aspects.…”

Section: Our Approachmentioning

confidence: 99%

Object handoff between uncalibrated views without planar ground assumption

Han

Nam

2008

Pattern Recognition Letters

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A new approach to camera hand-off without camera calibration for the general scene with non-planar ground

Cited by 21 publications

References 13 publications

Collaborative sensing via local negotiations in ad hoc networks of smart cameras

Collaborative sensing via local negotiations in ad hoc networks of smart cameras

Planning ahead for PTZ camera assignment and handoff

Object handoff between uncalibrated views without planar ground assumption

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