A novel system developed based on image processing techniques for dynamical measurement of tire-surface contact area

•A new system based on image processing was introduced to measure contact area.•The tire contact area were dynamically monitored by pouring white liquid.•Contact and non-contact areas were made separable using an appropriate processing.•Real time assessment of dynamic contact area was accomplished....

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Bibliographic Details
Published in:Measurement : journal of the International Measurement Confederation 2019-06, Vol.139, p.270-276
Main Authors: Derafshpour, Sajjad, Valizadeh, Morteza, Mardani, Aref, Tamaddoni Saray, Masoud
Format: Article
Language:English
Subjects:
Contact area
Criteria
Digital cameras
Dynamic contact pressure
Dynamical systems
Glass
Image processing
Image processing systems
Measurement
Metal box
Off road vehicles
Post-processing
Real time
Soil bin
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Summary:•A new system based on image processing was introduced to measure contact area.•The tire contact area were dynamically monitored by pouring white liquid.•Contact and non-contact areas were made separable using an appropriate processing.•Real time assessment of dynamic contact area was accomplished. Contact area is an important criterion to evaluate road and off-road vehicles performance. Previous researches have measured and investigated the static aspect of the contact area. In this research, a novel system is presented to dynamically measure this criterion. A metal box with a glass surface is employed and a white liquid is poured on the glass. A digital camera is also placed under the box, which captures a video when the tire passes over it. Frames of the video are segmented into ‘touching’ and ‘non-touching’ regions by using appropriate pre-processing, thresholding, and post-processing techniques. The area of touching regions is automatically measured. Experiments revealed that the proposed system is a precision instrument for real-time measurement of the dynamic contact area.
ISSN:0263-2241
1873-412X
DOI:10.1016/j.measurement.2019.02.074