In this paper, the relationship between the tilt angle and altitude of a PTZ camera and the 3D-to-2D coordinate
transformation is built. A vision-based approach is then proposed to accomplish the estimation of tilt angle and altitude
based on the observation of some simple objects lying on a horizontal plane, with known intrinsic parameters of the PTZ
camera. The patterns could be a circle, a corner with known angle, more than two corners with unknown but equal
angles, or more than two line segments with unknown but equal lengths. Furthermore, if we are given a few line
segments with known but not necessarily equal length, the estimation of tilt angle and altitude can also be achieved via
an optimization procedure. The impacts of parameter fluctuations are analyzed via computer simulations. Experimental
results on real images conform to our analysis and demonstrate the efficiency of this approach.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.