根据聚焦形状自动分析硬化混凝土中的空隙结构

IF 3.4 3区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY
Gui Li, Marianne Tange Hasholt, Vedrana Andersen Dahl, Ole Mejlhede Jensen
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引用次数: 0

摘要

空隙系统的质量对混凝土的抗冻性至关重要。因此,以适当的方式评估硬化混凝土的气隙系统质量至关重要。在本研究中,采用了聚焦形状(SFF)方法来识别硬化混凝土抛光表面上每个点的聚焦图像,从而获取整个表面的深度信息。对各种焦点测量算子和窗口大小的性能进行了评估。然后,将选定的聚焦测量算子和窗口大小用于所有样本的 SFF 分析。根据获得的深度图识别空隙,并通过自动程序确定硬化混凝土的空隙参数。SFF 方法的主要优点是可以在不增强对比度的情况下自动进行空隙分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Automated analysis of the void structure in hardened concrete based on shape from focus

Automated analysis of the void structure in hardened concrete based on shape from focus

The quality of the air void system is essential for the frost resistance of concrete. Therefore, it is crucial to assess the quality of the air void system in hardened concrete in an appropriate way. In this study, the shape from focus (SFF) method is applied to identify the focused image of each point on the polished surface of hardened concrete and thereby acquire the depth information of the entire surface. The performance of various focus measure operators and window sizes is evaluated. Thereafter, the selected focus measure operator and window size are applied for the SFF analysis of all samples. Based on the obtained depth map, the voids are identified, and the void parameters of the hardened concrete are determined by an automated procedure. The main advantage of the SFF method is that it is possible to carry out an automated air void analysis without contrast enhancement.

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来源期刊
Materials and Structures
Materials and Structures 工程技术-材料科学:综合
CiteScore
6.40
自引率
7.90%
发文量
222
审稿时长
5.9 months
期刊介绍: Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.
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