Journal article

SOCHOR Jakub, JURÁNEK Roman and HEROUT Adam. Traffic Surveillance Camera Calibration by 3D Model Bounding Box Alignment for Accurate Vehicle Speed Measurement. Computer Vision and Image Understanding. 2017, vol. 2017, no. 161, pp. 87-98. ISSN 1077-3142.
Publication language:english
Original title:Traffic Surveillance Camera Calibration by 3D Model Bounding Box Alignment for Accurate Vehicle Speed Measurement
Title (cs):Kalibrace dopravní dohledové kamery s využitím zarovnání 3D modelu pro přesné měření rychlosti vozidel
Pages:87-98
Place:NL
Year:2017
Journal:Computer Vision and Image Understanding, Vol. 2017, No. 161, NL
ISSN:1077-3142
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Keywords
camera calibration; fully automatic; traffic surveillance; bounding box alignment; vanishing point detection
Annotation
In this paper, we focus on fully automatic traffic surveillance
camera calibration, which we use for speed measurement of passing
vehicles. We improve over a recent state-of-the-art camera calibration
method for traffic surveillance based on two detected vanishing points.
More importantly, we propose a novel automatic scene scale inference
method. The method is based on matching bounding boxes of rendered 3D
models of vehicles with detected bounding boxes in the image. The
proposed method can be used from arbitrary viewpoints, since it has no
constraints on camera placement. We evaluate our method on the recent
comprehensive dataset for speed measurement BrnoCompSpeed. Experiments
show that our automatic camera calibration method by detection of two
vanishing points reduces error by 50% (mean distance ratio error reduced
from 0.18 to 0.09) compared to the previous state-of-the-art method. We
also show that our scene scale inference method is more precise,
outperforming both state-of-the-art automatic calibration method for
speed measurement (error reduction by 86% -- 7.98km/h to 1.10km/h) and
manual calibration (error reduction by 19% -- 1.35km/h to 1.10km/h). We
also present qualitative results of the proposed automatic camera
calibration method on video sequences obtained from real surveillance
cameras in various places, and under different lighting conditions
(night, dawn, day).
BibTeX:
@ARTICLE{
   author = {Jakub Sochor and Roman Jur{\'{a}}nek and Adam Herout},
   title = {Traffic Surveillance Camera Calibration by 3D Model Bounding
	Box Alignment for Accurate Vehicle Speed Measurement},
   pages = {87--98},
   journal = {Computer Vision and Image Understanding},
   volume = {2017},
   number = {161},
   year = {2017},
   ISSN = {1077-3142},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=11455}
}

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