Research on Morphological Characteristics of Coarse Aggregates Based on Image Processing
Digital image processing technology can quickly and accurately extract the morphological characteristic data of coarse aggregates and evaluate the morphological characteristics of coarse aggregates.The coarse aggregate images were imported into the computer and processed by Matlab software.The coarse aggregate images were subjected to noise removal,image segmenta-tion,binarization,edge extraction,and particle data analysis to obtain the morphological characteristic indicators such as the long and short axis,rectangularity,roundness,angularity,and needle-like particle content of the coarse aggregate.Analyzing and evaluating different samples of coarse aggregate particles,the test results show that:the image analysis method describes the morphological characteristics of coarse aggregate particles,and can select efficient and feasible parameters that are conducive to quantitative analysis of morphological characteristics.Studies have shown that the minimum threshold method can better extrac-tion of coarse aggregate particle images and is conducive to the subsequent processing of the image;the rectangularity and round-ness of different samples have obvious changes.The rectangularity decreases with the increase of the long axis,and the roundness increases with the increase of long axis.The angularity of coarse aggregate particles fluctuates up and down with the increase of the long axis,and there is no obvious characteristic;the content of coarse aggregate needle flakes is 0.Research is helpful to im-prove the quality control of coarse aggregate particles,control the performance of asphalt concrete,and promote the development of aggregate detection technology.
NETL
NSTL
万方数据
维普
