High precision calibration strategy and algorithm on binocular visual collaborative tracking

The binocular visual collaborative video tracking method can simultaneously obtain Far-Range image in global field of view and Close-Range image in following field of view with which can track the target, but the error of PTZ(Pan Tilt and Zoom) motion parameters of the following camera is relatively large and the calibration algorithm is relatively complex. Thus, a new strategy for PTZ calibration is presented, with which the PTZ motion parameters of the following camera are calibrated according to different positions of the global field of view, and the mapping relationship between the target position and the PTZ motion parameters is calculated so that the target locates the central position and displays in zoom-in state in monitoring field. Field experiment results show that the motion parameter error is obviously reduced while the precision of calibration is greatly improved.

[1]  A. Heyden,et al.  Variational Surface Interpolation from Sparse Point and Normal Data , 2007 .

[2]  T. Kanade,et al.  A master-slave system to acquire biometric imagery of humans at distance , 2003, IWVS '03.

[3]  Hongyu Di,et al.  A virtual binocular vision range finding method of remote object based on single rotating angle indexing camera , 2009, 2009 9th International Conference on Electronic Measurement & Instruments.

[4]  Zhao Bo.  Study on Camera External Parameters Calibration Algorithm with Big FOV and at Far Distance , 2009 .

[5]  Gilad Lerman,et al.  A New Approach to Two-View Motion Segmentation Using Global Dimension Minimization , 2013, International Journal of Computer Vision.

[6]  Javier Civera,et al.  Inverse Depth Parametrization for Monocular SLAM , 2008, IEEE Transactions on Robotics.

[7]  SolemJan Erik,et al.  Variational Surface Interpolation from Sparse Point and Normal Data , 2007 .

[8]  Radu Horaud,et al.  Camera cooperation for achieving visual attention , 2005, Machine Vision and Applications.

[9]  Guillaume-Alexandre Bilodeau,et al.  People tracking using a network-based PTZ camera , 2010, Machine Vision and Applications.

[10]  M. Steinbach,et al.  Fixation Patterns in Maculopathy: From Binocular to Monocular Viewing , 2012, Optometry and vision science : official publication of the American Academy of Optometry.

[11]  C. Fraser,et al.  Interest operators for feature‐based matching in close range photogrammetry , 2010 .