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Concrete crack detection using context-aware deep semantic segmentation network
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DOI：10.1111/mice.12477.png)
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Abstract
En 中文
Computer-vision and deep-learning techniques are being increasingly applied to inspect, monitor, and assess infrastructure conditions including detection of cracks. Traditional vision-based methods to detect cracks lack accuracy and generalization to work on complicated infrastructural conditions. This paper presents a novel context-aware deep convolutional semantic segmentation network to effectively detect cracks in structural infrastructure under various conditions. The proposed method applies a pixel-wise deep semantic segmentation network to segment the cracks on images with arbitrary sizes without retraining the prediction network. Meanwhile, a context-aware fusion algorithm that leverages local cross-state and cross-space constraints is proposed to fuse the predictions of image patches. This method is evaluated on three datasets: CrackForest Dataset (CFD) and Tomorrows Road Infrastructure Monitoring, Management Dataset (TRIMMD) and a Customized Field Test Dataset (CFTD) and achieves Boundary F1 (BF) score of 0.8234, 0.8252, and 0.7937 under 2-pixel error tolerance margin in CFD, TRIMMD, and CFTD, respectively. The proposed method advances the state-of-the-art performance of BF score by approximately 2.71% in CFD, 1.47% in TRIMMD, and 4.14% in CFTD. Moreover, the averaged processing time of the proposed system is 0.7 s on a typical desktop with Intel (R) Quad-Core (TM) i7-7700 CPU@3.6 GHz Processor, 16GB RAM and NVIDIA GeForce GTX 1060 6GB GPU for an image of size 256 x 256 pixels.
Keywords:
DAMAGE DETECTION
IMAGE RECOGNITION
DEFECT DETECTION
NEURAL-NETWORK
MODEL
OPTIMIZATION
METHODOLOGY
INFORMATION
CNN
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