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NAJMAN, P. ZEMČÍK, P.
Original Title
Vehicle Speed Measurement Using Stereo Camera Pair
Type
journal article in Web of Science
Language
English
Original Abstract
We have proposed a novel method for vehicle speed estimation using a calibrated and synchronized pair of stereo cameras. In a newly proposed method, we first localize the vehicle by detecting and tracking its license plate in a series of stereo images; then, we triangulate the vehicle position along its trajectory; and finally, we compute its speed based on the trajectory and time. The experiments show that the proposed method overcomes state-of-the-art results with a mean error of approximately 0.05 km/h, a standard deviation of less than 0.20 km/h, and a maximum absolute error of less than 0.75 km/h. For the purpose of evaluation, we have recorded a dataset that contains over 600 vehicles whose trajectories were recorded and for which their ground truth speed was obtained from a pair of single beam LIDARs in optical gate configuration. Using the presented method, the speed was measured for over 99 % of the recorded vehicles. Others were rejected by the method mainly due to their short trajectories, obstructed license plates or frame errors that would adversely affect the precision of the measurement.
Keywords
Vehicle speed measurement, stereo matching, sub-pixel registration, stereo vision.
Authors
NAJMAN, P.; ZEMČÍK, P.
Released
4. 12. 2020
ISBN
1524-9050
Periodical
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
Year of study
23
Number
3
State
United States of America
Pages from
2202
Pages to
2210
Pages count
9
URL
https://ieeexplore.ieee.org/document/9254152
BibTex
@article{BUT168552, author="Pavel {Najman} and Pavel {Zemčík}", title="Vehicle Speed Measurement Using Stereo Camera Pair", journal="IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS", year="2020", volume="23", number="3", pages="2202--2210", doi="10.1109/TITS.2020.3035262", issn="1524-9050", url="https://ieeexplore.ieee.org/document/9254152" }