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2017 | OriginalPaper | Chapter

Application of Local Features for Calibration of a Pair of CCTV Cameras

Authors : Adam Lach, Michał Grega

Published in: Multimedia Communications, Services and Security

Publisher: Springer International Publishing

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Abstract

The paper presents a new approach to the problem of calibration of a pair of CCTV cameras – a wide angle camera and Pan-Tilt-Zoom (PTZ) camera. The proposed solution allows for accurate control of the PTZ camera using point of interest selected in the coordinate system of the wide angle camera. In the paper we describe the local feature based calibration algorithm, camera control algorithm. We present results of the tests conducted with a real-life a setup of two high end CCTV cameras overseeing a 3000 m2 parking lot. We have achieved an average 1,24\(^{\circ }\) accuracy of calibration that translates to approximately 1.7 m at 80 m of observation distance. The proposed solution is designed in such a way, that after a one-time, heavy-computing calibration the camera control procedure is instantaneous and thus very well suited for operation with advanced object detection algorithms.

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Metadata
Title
Application of Local Features for Calibration of a Pair of CCTV Cameras
Authors
Adam Lach
Michał Grega
Copyright Year
2017
DOI
https://doi.org/10.1007/978-3-319-69911-0_6

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