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Combining shadow detection and simulation for estimation of vehicle size and position
Linköping University, Department of Electrical Engineering, Computer Vision . Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Computer Vision . Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Computer Vision . Linköping University, The Institute of Technology.ORCID iD: 0000-0002-5698-5983
Linköping University, Department of Electrical Engineering, Computer Vision . Linköping University, The Institute of Technology.
2009 (English)In: PATTERN RECOGNITION LETTERS, ISSN 0167-8655, Vol. 30, no 8, 751-759 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a method that combines shadow detection and a 3D box model including shadow simulation, for estimation of size and position of vehicles. We define a similarity measure between a simulated image of a 3D box, including the box shadow, and a captured image that is classified into background/foreground/shadow. The similarity Measure is used in all optimization procedure to find the optimal box state. It is shown in a number of experiments and examples how the combination shadow detection/simulation improves the estimation compared to just using detection or simulation, especially when the shadow detection or the simulation is inaccurate. We also describe a tracking system that utilizes the estimated 3D boxes, including highlight detection, spatial window instead of a time based window for predicting heading, and refined box size estimates by weighting accumulated estimates depending oil view. Finally, we show example results.

Place, publisher, year, edition, pages
2009. Vol. 30, no 8, 751-759 p.
Keyword [en]
Vehicle tracking, 3D box model, Object size estimation, Shadow detection, Shadow simulation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-19420DOI: 10.1016/j.patrec.2009.03.005OAI: oai:DiVA.org:liu-19420DiVA: diva2:224936
Note
Original Publication: Björn Johansson, Johan Wiklund, Per-Erik Forssén and Gösta Granlund, Combining shadow detection and simulation for estimation of vehicle size and position, 2009, PATTERN RECOGNITION LETTERS, (30), 8, 751-759. http://dx.doi.org/10.1016/j.patrec.2009.03.005 Copyright: Elsevier Science B.V., Amsterdam. http://www.elsevier.com/ Available from: 2009-06-29 Created: 2009-06-22 Last updated: 2015-12-10Bibliographically approved

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Johansson, BjörnWiklund, JohanForssén, Per-ErikGranlund, Gösta

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