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دسته بندی:
یادگیری عمیق - deep learning
سال انتشار:
2019
عنوان انگلیسی مقاله:
Quasi-autonomous bolt-loosening detection method using vision-based deep learning and image processing
ترجمه فارسی عنوان مقاله:
روش تشخیص شل شدن شبه مستقل با استفاده از یادگیری عمیق مبتنی بر بینایی و پردازش تصویر
منبع:
Sciencedirect - Elsevier - Automation in Construction, 105 (2019) 102844: doi:10:1016/j:autcon:2019:102844
نویسنده:
Thanh-Canh Huynha, Jae-Hyung Parkb, Hyung-Jo Jungc, Jeong-Tae Kimd
چکیده انگلیسی:
In this study, a quasi-autonomous vision-based method is newly proposed for detecting loosened bolts in critical
connections. The main idea of the approach is to estimate the rotational angles of bolts from the connection
images by integrating deep learning technology with image processing techniques. Firstly, a regional convolutional
neural network (RCNN)-based deep learning algorithm is developed to automatically detect and crop
plausible bolts in the connection image. Also, the Hough line transform (HLT)-based image processing algorithm
is designed to automatically estimate the bolt angles from the cropped bolt images. Secondly, the proposed
vision-based approach is validated for bolt-loosening detection in a lab-scale girder connection using images
captured by a smartphone camera. The accuracy of the RCNN-based bolt detector and the HLT-based bolt angle
estimator are examined under different levels of perspective distortion and shooting distance. Finally, the
practicality of the proposed vision-based method is verified on a real-scale girder bridge connection containing
numerous bolts. The images of the connection are captured by an unmanned aerial vehicle and transferred to a
computer where a quasi-autonomous bolt-loosening detection process is performed via the proposed algorithm.
The experimental results demonstrate potentials of the proposed approach for quasi real-time bolt-loosening
monitoring of large bolted connections. The results show that the perspective angle should not go beyond 40
degrees to ensure the accuracy of the detection results.
Keywords: Bolted connection | Bolt-loosening | Deep learning | CNN | Hough transform | Canny line detector | Bolt detection | Bolt rotation estimation
قیمت: رایگان
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