Automatic Image Analysis in Evaluation of Aggregate Shape

Autor:	Jerzy M. Brzezicki, Janusz Kasperkiewicz
Rok vydání:	1999
Předmět:	Engineering Engineering drawing Accuracy and precision Aggregate (composite) Computer simulation business.industry Estimation theory Image processing Surface finish Automation Computer Science Applications business Algorithm Civil and Structural Engineering Shape analysis (digital geometry)
Zdroj:	Journal of Computing in Civil Engineering. 13:123-128
ISSN:	1943-5487 0887-3801
DOI:	10.1061/(asce)0887-3801(1999)13:2(123)
Popis:	The presented method of image analysis is aimed at the evaluation of aggregate grain shape for concrete mixes and other civil engineering purposes. Standard procedure of the aggregate shape evaluation (ASTM) involves manual, troublesome measurements and produces parameters that only roughly characterize the shape of aggregates. The present procedure enables automatic and accurate measurement of three main dimensions of each grain in a sample of aggregate grains, and makes possible evaluation of their flakiness and elongation indexes, as well as of the corresponding statistics. A new, more accurate method of the shape characterization of the samples of aggregates along with its graphical presentation is proposed. Examples of the application of the method to sets of aggregate grains of different origin demonstrate the effectiveness of the method and of the new shape characteristics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bd399e1ab58b3ab3c54e9fe1da42eac6 https://doi.org/10.1061/(asce)0887-3801(1999)13:2(123) Zobrazit plný text záznamu Plný text ve formátu PDF