| Related citation: | DUAN Yue-hua,ZHANG Xiao-ning,ZHANG Shun-xian,YUAN Miao-miao.Three dimensional particles identification and shape parameters research on coarse aggregates of asphalt mixture using X-ray CT images[J].Journal of Harbin Institute Of Technology(New Series),2011,18(5):103-107.DOI:10.11916/j.issn.1005-9113.2011.05.018. |
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| Author Name | Affiliation | | DUAN Yue-hua | School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China
Guangdong Hualu Communications Technology Co.,Ltd.,Guangzhou 510420,China | | ZHANG Xiao-ning | School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China | | ZHANG Shun-xian | School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China | | YUAN Miao-miao | School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China |
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| 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: |
