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Nhan đề: Image-Based Concrete Crack Detection Using Convolutional Neural Network and Exhaustive Search Technique
Tác giả: Li, Shengyuan
Zhao, Xuefeng
Từ khoá: International conferences
Feature extraction
Architectural engineering
Fourier transforms
Artificial intelligence
Artificial neural networks
Image detection
Concrete structures
Civil engineering
Neural networks
Flaw detection
Asphalt pavements
Data bases
Năm xuất bản: 2019
Nhà xuất bản: Hindawi Limited
Tóm tắt: Crack detection is important for the inspection and evaluation during the maintenance of concrete structures. However, conventional image-based methods need extract crack features using complex image preprocessing techniques, so it can lead to challenges when concrete surface contains various types of noise due to extensively varying real-world situations such as thin cracks, rough surface, shadows, etc. To overcome these challenges, this paper proposes an image-based crack detection method using a deep convolutional neural network (CNN). A CNN is designed through modifying AlexNet and then trained and validated using a built database with 60000 images. Through comparing validation accuracy under different base learning rates, 0.01 was chosen as the best base learning rate with the highest validation accuracy of 99.06%, and its training result is used in the following testing process. The robustness and adaptability of the trained CNN are tested on 205 images with 3120 × 4160 pixel resolutions which were not used for training and validation. The trained CNN is integrated into a smartphone application to mobile more public to detect cracks in practice. The results confirm that the proposed method can indeed detect cracks in images from real concrete surfaces.
Mô tả: "Hindawi; Advances in Civil Engineering; Volume 2019, Article ID 6520620, 12 pages;"
Định danh:
ISSN: 1687-8086
1687-8094 (eISSN)
Bộ sưu tập: Bài báo_lưu trữ

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