Classification of driving direction in traffic surveillance using magnetometers
2014 (English)In: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 15, no 4, 1405-1418 p.Article in journal (Refereed) Published
Traffic monitoring using low-cost two-axis magnetometers is considered. Although detection of metallic vehicles is rather easy, detecting the driving direction is more challenging. We propose a simple algorithm based on a nonlinear transformation of the measurements, which is simple to implement in embedded hardware. A theoretical justification is provided, and the statistical properties of the test statistic are presented in closed form. The method is compared with the standard likelihood ratio test on both simulated data and real data from field tests, where very high detection rates are reported, despite the presence of sensor saturation, measurement noise, and near-field effects of the magnetic field.
Place, publisher, year, edition, pages
2014. Vol. 15, no 4, 1405-1418 p.
Research subject Control Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-8209DOI: 10.1109/TITS.2014.2298199Local ID: 6ae21702-693a-4016-b63e-4eabcc1ec8cdOAI: oai:DiVA.org:ltu-8209DiVA: diva2:981100
Validerad; 2014; 20140103 (rolhos)2016-09-292016-09-29Bibliographically approved