4.7 Article

Intensity Normalisation of GPR C-Scans

Related references

Note: Only part of the references are listed.
Review Construction & Building Technology

Arbitrarily-oriented tunnel lining defects detection from Ground Penetrating Radar images using deep Convolutional Neural networks

Jing Wang et al.

Summary: This paper presents an automatic scheme based on (RDCNN)-D-2 and GPR images for accurate detection of defects and rebars in tunnel lining. Experimental results show that (RDCNN)-D-2 outperforms (RCNN)-C-2 in both synthetic and real GPR images.

AUTOMATION IN CONSTRUCTION (2022)

Article Automation & Control Systems

Enhancing underwater image via adaptive color and contrast enhancement, and denoising

Xinjie Li et al.

Summary: The study proposes a novel scheme for enhancing underwater images, utilizing a Difference of Gaussian (DoG) filter and bilateral filter to decompose the high-frequency and low-frequency components to suppress noise and enhance color and contrast adaptation as well.

ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE (2022)

Review Construction & Building Technology

Back-fill grouting quality evaluation of the shield tunnel using ground penetrating radar with bi-frequency back projection method

Xiongyao Xie et al.

Summary: This paper presents a method based on ground penetrating radar(GPR) using the bi-frequency back projection(BBP) algorithm to detect the grouting distribution behind the tunnel segment, with high performance demonstrated in comparison with traditional methods.

AUTOMATION IN CONSTRUCTION (2021)

Article Geochemistry & Geophysics

Near-surface diffractor detection at archaeological sites based on an interferometric workflow

Jianhuan Liu et al.

Summary: The challenge of detecting small-size objects at archaeological sites is addressed by proposing an approach for imaging subsurface objects using masked diffractions. The method involves seismic interferometry, nonstationary adaptive subtraction, and crosscoherence-based supervirtual interferometry to reveal and enhance diffractions. The research shows that the scheme is robust in locating diffractors from data dominated by strong Love waves, and the method is tested on field data acquired at an archaeological site.

GEOPHYSICS (2021)

Article Chemistry, Analytical

Accuracy Tests and Precision Assessment of Localizing Underground Utilities Using GPR Detection

Krzysztof Ryszard Karsznia et al.

Summary: Using georadar technology for detecting underground utilities is crucial in assessing the location and ground infrastructure, with accuracy depending on equipment, detection method, and external factors. Due to the need to detect infrastructure under challenging urban conditions, there is a constant demand for improving existing technologies.

SENSORS (2021)

Article Environmental Sciences

A New Methodology for the Detection and Extraction of Hyperbolas in GPR Images

Klaudia Onyszko et al.

Summary: Reliable detection of underground infrastructure is crucial for infrastructure modernization, BIM technology, and 3D cadasters. The paper proposes a method of data filtration using wavelet analyses and Gabor filtration, as well as an object classification methodology based on the analytic hierarchy process method to improve the efficiency and accuracy of object detection and classification.

REMOTE SENSING (2021)

Article Construction & Building Technology

GPR wave dispersion for material characterization

Wallace W. L. Lai et al.

Summary: This study investigates the dispersion of GPR wave's phase velocity at different wideband frequencies in plywood and concrete, finding greater dispersion in low frequency regimes. The methodology includes time-frequency analysis and coherence plotting to determine the effective frequency bandwidths.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Environmental Sciences

Identifying Spatial and Temporal Variations in Concrete Bridges with Ground Penetrating Radar Attributes

Vivek Kumar et al.

Summary: Estimating variations in material properties over space and time is crucial for structural health monitoring of civil infrastructure. Nondestructive methods like ground penetrating radar (GPR) are being used to assess in situ material properties of concrete, with a focus on compressive strength. The study shows that GPR attributes can successfully identify spatial and temporal variations in concrete properties, providing valuable insights for field applications.

REMOTE SENSING (2021)

Article Construction & Building Technology

Influence of water content investigation on GPR wave attenuation for early age concrete in natural air-drying condition

Ismail Kaplanvural et al.

Summary: This study demonstrates an efficient method to evaluate the water content of concrete using time-lapse Ground-penetrating radar (GPR) measurements, showing that changes in water content can be monitored by measuring EM wave attenuation, providing practical value in monitoring the quality of concrete and determining potential corrosion risks.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Geochemistry & Geophysics

3D ground-penetrating radar attributes to generate classified facies models: A case study from a dune island

Philipp Koyan et al.

Summary: Ground-penetrating radar (GPR) is a geophysical technique used to image near-surface structures in sedimentary environments, with increasing adoption of 3D strategies in data acquisition and processing. However, interpretation of processed GPR data volumes still often relies on 2D slices and manual concepts. This study presents a workflow for generating 3D attribute-based GPR facies models, which involves calculating and filtering 3D texture attributes, dimensionality reduction, and cluster analysis to produce a classified GPR facies model.

GEOPHYSICS (2021)

Article Construction & Building Technology

GPR pattern recognition of shallow subsurface air voids

Tess X. H. Luo et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2020)

Article Geosciences, Multidisciplinary

GPR imaging criteria

Tess X. H. Luo et al.

JOURNAL OF APPLIED GEOPHYSICS (2019)

Article Geosciences, Multidisciplinary

A blind test of nondestructive underground void detection by ground penetrating radar (GPR)

Wallace W. L. Lai et al.

JOURNAL OF APPLIED GEOPHYSICS (2018)

Article Materials Science, Characterization & Testing

Quantifying Bridge Deck Corrosion Using Ground Penetrating Radar

Nicole Martino et al.

RESEARCH IN NONDESTRUCTIVE EVALUATION (2016)

Article Materials Science, Characterization & Testing

Development of a new algorithm for accurate estimation of GPR's wave propagation velocity by common-offset survey method

Janet F. C. Sham et al.

NDT & E INTERNATIONAL (2016)

Article Construction & Building Technology

Perturbation mapping of water leak in buried water pipes via laboratory validation experiments with high-frequency ground penetrating radar (GPR)

Wallace W. L. Lai et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2016)

Article Computer Science, Artificial Intelligence

GcsDecolor: Gradient Correlation Similarity for Efficient Contrast Preserving Decolorization

Qiegen Liu et al.

IEEE TRANSACTIONS ON IMAGE PROCESSING (2015)

Article Materials Science, Characterization & Testing

Spectral absorption of spatial and temporal ground penetrating radar signals by water in construction materials

Wallace Wai-Lok Lai et al.

NDT & E INTERNATIONAL (2014)

Article Ethnic Studies

The colour line and the colour scale in the twentieth century

Michael Banton

ETHNIC AND RACIAL STUDIES (2012)

Article Computer Science, Software Engineering

Color2Gray: Salience-preserving color removal

AA Gooch et al.

ACM TRANSACTIONS ON GRAPHICS (2005)

Article Geochemistry & Geophysics

Full-resolution 3D GPR imaging

M Grasmueck et al.

GEOPHYSICS (2005)

Article Computer Science, Artificial Intelligence

Image quality assessment: From error visibility to structural similarity

Z Wang et al.

IEEE TRANSACTIONS ON IMAGE PROCESSING (2004)