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RISAutomated Rust-Defect Detection of a Steel Bridge Using Aerial Multispectral Imagery
Publisher: American Society of Civil Engineers
Abstract: Computer vision methods have the potential to detect rust defects in steel components of bridges. However, direct use of images collected by aerial means to identify such defects is currently difficult because of obstructions ...
Automated Rust-Defect Detection of a Steel Bridge Using Aerial Multispectral Imagery
Publisher: American Society of Civil Engineers
Abstract: Computer vision methods have the potential to detect rust defects in steel components of bridges. However, direct use of images collected by aerial means to identify such defects is currently difficult because of obstructions ...
Defect Classification in Pipes by Neural Networks Using Multiple Guided Ultrasonic Wave Features Extracted After Wavelet Processing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper casts pipe inspection by ultrasonic guided waves in a feature extraction and automatic classification framework. The specific defect under investigation is a small notch cut in an ...
Use of Interwire Ultrasonic Leakage to Quantify Loss of Prestress in Multiwire Tendons
Publisher: American Society of Civil Engineers
Abstract: This paper presents a technique developed on the basis of ultrasonic guided waves to monitor prestress levels in multiwire prestressing strands. The transducer layout identified for stress measurement is composed of an ...