Detection and classification of internal defects in limestone blocks based on a deconvolution technique with SI-PLCA applied to GPR signals

IF 1 4区材料科学 Q3 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Research in Nondestructive Evaluation Pub Date : 2019-04-02 DOI:10.1080/09349847.2019.1593567

Maria Violeta Montiel-Zafra, F. Canadas-Quesada, P. Vera-Candeas, N. Ruiz-Reyes, J. R. Arrans, J. M. López

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引用次数: 1

Abstract

ABSTRACT In this work, a novel migration method is applied to Ground-Penetrating Radar (GPR) data to detect the internal flaws of ornamental stone blocks. To detect and classify fractures in accordance with their spatial orientation, a Shift-Invariant Probabilistic Latent Component Analysis (SI-PLCA) is proposed. GPR simulations are conducted using modeling software to test several types of fractures (with different positions, thicknesses, and lengths) in rock blocks and to train several patterns as inputs for the SI-PLCA method. An 800 MHz antenna is used to assess both simulated and real data. The accuracy rate of the proposed approach is evaluated and compared with that of classical migration methods for detection and is compared to a Template Matching approach for classification; promising results are obtained. In addition, GPR is applied to two blocks of a rock type known commercially as Crema Marfil. The 3D fracture maps obtained from the proposed approach are compared with the stone slabs from the cutting process. The results show that the proposed approach applied to GPR radargrams is an effective method for determining the internal structure of stone materials, particularly for detecting and classifying fractures.

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基于探地雷达信号的SI-PLCA反褶积技术的石灰岩块体内部缺陷检测与分类

摘要:本文将一种新的偏移方法应用于探地雷达(GPR)数据中，以检测观赏石块的内部缺陷。为了根据裂缝的空间方向对裂缝进行检测和分类，提出了一种移位不变概率潜在成分分析(SI-PLCA)方法。利用建模软件进行探地雷达模拟，测试岩石块中几种类型的裂缝(不同位置、厚度和长度)，并训练几种模式作为SI-PLCA方法的输入。采用800mhz天线对模拟数据和实际数据进行评估。评估了该方法的检测准确率，并与经典迁移方法进行了比较，并与模板匹配方法进行了分类;取得了令人满意的结果。此外，探地雷达还应用于商业上称为Crema Marfil的岩石类型的两个区块。采用该方法获得的三维断口图与切割过程中的石板进行了比较。结果表明，将该方法应用于探地雷达图是确定石材内部结构的有效方法，特别是对裂缝的检测和分类。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Research in Nondestructive Evaluation 工程技术-材料科学：表征与测试

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Research in Nondestructive Evaluation® is the archival research journal of the American Society for Nondestructive Testing, Inc. RNDE® contains the results of original research in all areas of nondestructive evaluation (NDE). The journal covers experimental and theoretical investigations dealing with the scientific and engineering bases of NDE, its measurement and methodology, and a wide range of applications to materials and structures that relate to the entire life cycle, from manufacture to use and retirement. Illustrative topics include advances in the underlying science of acoustic, thermal, electrical, magnetic, optical and ionizing radiation techniques and their applications to NDE problems. These problems include the nondestructive characterization of a wide variety of material properties and their degradation in service, nonintrusive sensors for monitoring manufacturing and materials processes, new techniques and combinations of techniques for detecting and characterizing hidden discontinuities and distributed damage in materials, standardization concepts and quantitative approaches for advanced NDE techniques, and long-term continuous monitoring of structures and assemblies. Of particular interest is research which elucidates how to evaluate the effects of imperfect material condition, as quantified by nondestructive measurement, on the functional performance.