Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
3D TARGET SCALE ESTIMATION FOR SIZE PRESERVING IN PTZ VIDEO TRACKING Yi Yao, Besma Abidi, and Mongi Abidi
 

Summary: 3D TARGET SCALE ESTIMATION FOR SIZE PRESERVING IN PTZ VIDEO TRACKING
Yi Yao, Besma Abidi, and Mongi Abidi
Imaging, Robotics, and Intelligent Systems Lab, The University of Tennessee, Knoxville, TN-37996
ABSTRACT
In size preserving video tracking, the camera's focal length
(zoom) is adjusted automatically to compensate for the
changes in the target's image size caused by the relative
motion between the camera and the target. The accurate
estimation of these changes is paramount to the system
performance. Structure from motion (SFM) based on the
weak perspective projection model has been applied to real-
time target scale estimation [1]. In this paper we design target
scale estimation algorithms with linear solutions based on
more advanced projection models: paraperspective and
perspective. The performances of the algorithms using three
projection models are examined and compared. Experimental
results show that the proposed algorithm based on the
paraperspective projection model produces the best
performance with respect to accuracy, complexity, and
robustness.

  

Source: Abidi, Mongi A. - Department of Electrical and Computer Engineering, University of Tennessee

 

Collections: Computer Technologies and Information Sciences