Measurement of Bitumen Coverage of Stones for Road Building, Based on Digital Image Analysis

Summary, in English

The top layer of a road is made up of a mixture of stones

and bitumen and the durability is dependent on how well

the bitumen adheres to the stones. The standard way of

determining the bitumen coverage in the industry is the so

called rolling bottle method, where a number of stones cov-

ered with bitumen are put in a rolling bottle and the bitu-

men coverage is estimated after different times. This paper

describes a novel method for measuring the bitumen cover-

age of the stones by using advanced segmentation methods

instead of manual inspection. The stones are put on a ta-

ble and a number of images with different exposure times

are taken. The images are normalized and the stones are

segmented from the background based on a threshold ob-

tained from an optimality criterion. Then the bitumen cov-

ered parts of the stones are segmented based on a graph-cut

method. The results are compared to manual inspection and

are well in agreement with these.

• Författare: Hanna Källén; Anders Heyden; Karl Åström; Per Lindh
• Avdelning/ar: Matematik LTH; Matematikcentrum; Mathematical Imaging Group; ELLIIT: the Linköping-Lund initiative on IT and mobile communication; eSSENCE: The e-Science Collaboration
• Publiceringsår: 2012
• Språk: Engelska
• Sidor: 337-344
• Publikation/Tidskrift/Serie: Applications of Computer Vision (WACV), 2012 IEEE Workshop on
• Länkar: http://dx.doi.org/10.1109/WACV.2012.6163036
• Dokumenttyp: Konferensbidrag
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Mathematics
• Conference name: IEEE Workshop on Applications of Computer Vision, WACV 2012, Breckenridge, CO, USA, January 9-11, 2012
• Conference date: 2012-01-09 - 2012-01-11
• Conference place: Breckenridge, Colorado, United States
• Status: Published
• Forskningsgrupp: Mathematical Imaging Group
• ISBN/ISSN/Övrigt: ISBN: 978-1-4673-0233-3 (print); ISBN: 978-1-4673-0232-6 (online)