Three dimensional particles identification and shape parameters research on coarse aggregates of asphalt mixture using X-ray CT images
DUAN Yue-hua1,2, ZHANG Xiao-ning1, ZHANG Shun-xian1, YUAN Miao-miao1
1.School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China;2.Guangdong Hualu Communications Technology Co.,Ltd.,Guangzhou 510420,China
Abstract:
In this paper a series of digital image processing methods were adopted for getting separated coarse aggregates from asphalt mixture specimen using high-resolution X-ray Computed Tomography (CT) images.The existing three dimensional (3D) particles matching methods based on two dimensional (2D) continuous cross-sections were analyzed and a new ’overlap area method’ was presented.After the 3D particles were extracted one by one successfully,the basic parameters of each aggregate:perimeter,area,surface area,and volume were calculated by chain code method.Finally,the 3D mass center coordinates and the sphericity index were introduced.
Key words: asphalt mixture X-ray CT three dimensional matching chain code sphericity
DOI：10.11916/j.issn.1005-9113.2011.05.018
Clc Number:U414
Fund:
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Three dimensional particles identification and shape parameters research on coarse aggregates of asp
本站小编 哈尔滨工业大学/2019-10-23
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