PTZ Camera Assisted Face Acquisition, Tracking & Recognition

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Executive Summary

Face recognition systems typically have a rather short operating distance with standoff (distance between the camera and the subject) limited to 1~2 meters. When these systems are used to capture face images at a larger distance (5~10 m), the resulting images contain only a small number of pixels on the face region, resulting in a degradation in face recognition performance. To address this problem, the authors propose a camera system consisting of one PTZ camera and two static cameras to acquire high resolution face images up to a distance of 10 meters. They propose a novel camera calibration method based on the coaxial configuration between the static and PTZ cameras.

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