Digital image processing has become the mainstream method for measuring aggregate morphologies. However, the results of the image method are seriously affected by the laying style of aggregates. This study proposes a morphological analysis method based on three-dimensional curvature analysis. The results show that the values of maximum curvature and standard deviation of Gaussian curvature on the aggregate surface can be used to represent the angularity and texture, respectively. The relative ranking of methods according to the accuracy places the curvature method as the largest and the image method as the least, with the profile method falling in between. The proposed method could provide a new possibility to accurately quantify the aggregate morphologies and contribute to the design of the mixture. Better quality of asphalt pavement could be obtained by taking into account the comprehensive morphologies reported in this study.

中文翻译：

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基于三维曲率分析的聚合形态测量

数字图像处理已成为测量聚集体形态的主流方法。然而，图像方法的结果受到骨料铺设方式的严重影响。本研究提出了一种基于三维曲率分析的形态分析方法。结果表明，集料表面的最大曲率值和高斯曲率标准差值可以分别表示棱角和纹理。根据精度对方法的相对排名，曲率法最大，图像法最小，轮廓法介于两者之间。所提出的方法可以提供一种新的可能性来准确量化聚合形态并有助于混合物的设计。