TY - GEN
T1 - An Extended Method of Multiple-Camera Calibration for 3D Vehicle Tracking at Intersections
AU - Subedi, Sukriti
AU - Tang, Hua
PY - 2018/10/18
Y1 - 2018/10/18
N2 - In this paper, we propose an extended method for calibration of multiple cameras for 3D vehicle tracking at intersections that eventually targets automated and accurate traffic data collection. To allow simple, efficient yet accurate camera calibration of multiple cameras, we propose to extend the method based on the traditional vanishing-point based technique for individual camera calibration. First, a common rectangular road pattern derived from parallel traffic lanes is established to set up a unique world coordinate. Then, each camera is separately calibrated using parallel lines from the road pattern and finally all cameras are jointly optimized in least-squared nonlinear approach for minimum projection error. It is evaluated in a practical traffic scene with two cameras that more than 90% accuracy is achieved for distance and vehicle 3D dimension estimation.
AB - In this paper, we propose an extended method for calibration of multiple cameras for 3D vehicle tracking at intersections that eventually targets automated and accurate traffic data collection. To allow simple, efficient yet accurate camera calibration of multiple cameras, we propose to extend the method based on the traditional vanishing-point based technique for individual camera calibration. First, a common rectangular road pattern derived from parallel traffic lanes is established to set up a unique world coordinate. Then, each camera is separately calibrated using parallel lines from the road pattern and finally all cameras are jointly optimized in least-squared nonlinear approach for minimum projection error. It is evaluated in a practical traffic scene with two cameras that more than 90% accuracy is achieved for distance and vehicle 3D dimension estimation.
UR - http://www.scopus.com/inward/record.url?scp=85057093625&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85057093625&partnerID=8YFLogxK
U2 - 10.1109/EIT.2018.8500130
DO - 10.1109/EIT.2018.8500130
M3 - Conference contribution
AN - SCOPUS:85057093625
T3 - IEEE International Conference on Electro Information Technology
SP - 258
EP - 261
BT - 2018 IEEE International Conference on Electro/Information Technology, EIT 2018
PB - IEEE Computer Society
T2 - 2018 IEEE International Conference on Electro/Information Technology, EIT 2018
Y2 - 3 May 2018 through 5 May 2018
ER -