2021
DOI: 10.1061/(asce)cf.1943-5509.0001652
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Building and Infrastructure Defect Detection and Visualization Using Drone and Deep Learning Technologies

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Cited by 28 publications
(9 citation statements)
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References 38 publications
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“…Eguchi et al 98 transformed the 3D point cloud data of the pavement into color information images, and used the AlexNet model to detect the spots on the asphalt surface. In order to obtain the detection effect of the optimal 3D point cloud image, Jiang et al 78 compared the performance of RGB, depth and normal vectors and their combined feature images from photogrammetry point clouds for image segmentation tasks on the U-Net model. Experiments showed that the optimal effect can be achieved in the combined feature image of depth and normal vector.…”
Section: Based On Deep Learningmentioning
confidence: 99%
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“…Eguchi et al 98 transformed the 3D point cloud data of the pavement into color information images, and used the AlexNet model to detect the spots on the asphalt surface. In order to obtain the detection effect of the optimal 3D point cloud image, Jiang et al 78 compared the performance of RGB, depth and normal vectors and their combined feature images from photogrammetry point clouds for image segmentation tasks on the U-Net model. Experiments showed that the optimal effect can be achieved in the combined feature image of depth and normal vector.…”
Section: Based On Deep Learningmentioning
confidence: 99%
“…In places where light is not fully illuminated, this method is difficult to play a role. 78 Therefore, Methods based on 3D point cloud images are proposed, whose core idea is to learn the region of interest features on 2D depth images mapped into 3D point cloud. 79,80 These methods do not need to consider the external lighting conditions, shooting location, and the disorderly nature of 3D point cloud, and can play a better suppression for the interference of outliers, but this method needs to establish the point-image mapping relationship between 2D images and point cloud.…”
Section: Point Cloud Modal Transformationmentioning
confidence: 99%
“…The last few years have also seen various DL-based crack detection studies using 3D images [222,223]. The state-of-the-art DL approaches can also be improved to adapt the 3D imaging technologies to improve model generalization ability and consider new crack features, such as crack dimensions.…”
Section: Integrating New Features Beyond Rgb Imagesmentioning
confidence: 99%
“…In recent years, various semi- or fully automated techniques have been reported in the literature for narrow and enclosed space inspections for building maintenance tasks. Here, computer vision algorithms were used for automatically detecting defects from images collected by inspection tools such as borescope cameras [ 1 , 2 ] and drones [ 3 , 4 ]. However, borescope cameras and drone-based methods have many practical difficulties when used as inspection tools in false ceiling environments.…”
Section: Related Workmentioning
confidence: 99%