A smart surface inspection system using faster R-CNN in cloud-edge computing environment

Yuanbin Wang, Minggao Liu, Pai Zheng, Huayong Yang, Jun Zou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

87 Citations (Scopus)


Automated surface inspection has become a hot topic with the rapid development of machine vision technologies. Traditional machine vision methods need experts to carefully craft image features for defect detection. This limits their applications to wider areas. The emerging convolutional neural networks (CNN) can automatically extract features and yield good results in many cases. However, the CNN-based image classification methods are more suitable for flat surface texture inspection. It is difficult to accurately locate small defects in geometrically complex products. Furthermore, the computational power required in CNN algorithms is usually high and it is not efficient to be implemented on embedded hardware. To solve these problems, a smart surface inspection system is proposed using faster R-CNN algorithm in the cloud-edge computing environment. The faster R-CNN as a CNN-based object detection method can efficiently identify defects in complex product images and the cloud-edge computing framework can provide fast computation speed and evolving algorithm models. A real industrial case study is presented to illustrate the effectiveness of the proposed method. The results show that the proposed method can provide high detection accuracy within a short time.

Original languageEnglish
Article number101037
JournalAdvanced Engineering Informatics
Publication statusPublished - Jan 2020


  • Automated surface inspection
  • Cloud-edge computing
  • Convolutional neural networks
  • Smart product-service system

ASJC Scopus subject areas

  • Information Systems
  • Artificial Intelligence


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