哈尔滨工业大学学报（英文版）
哈爾濱工業大學學報（英文版）
합이빈공업대학학보（영문판）
JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY(NEW SERIES)
2011年
5期
103-107
,共5页
段跃华%张肖宁%张顺先%苑苗苗
段躍華%張肖寧%張順先%苑苗苗
단약화%장초저%장순선%원묘묘
asphalt mixture%X-ray CT%three dimensional matching%chain code%sphericity
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 crosssections 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.
