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Automotive Engineering ›› 2021, Vol. 43 ›› Issue (4): 485-491.doi: 10.19562/j.chinasae.qcgc.2021.04.005

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Detection of Water⁃covered and Wet Areas on Road Pavement Based on Semantic Segmentation Network

Hai Wang1(),Baixiang Cai1,Yingfeng Cai2,Ze Liu2,Kai Sun3,Long Chen2   

  1. 1.School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013
    2.Institute of Automotive Engineering,Jiangsu University,Zhenjiang 212013
    3.Hesai Instruments Inc. ,Shanghai 201702
  • Received:2020-09-28 Revised:2021-01-24 Online:2021-04-25 Published:2021-04-23
  • Contact: Hai Wang E-mail:wanghai1019@163.com

Abstract:

The adhesion coefficient of water?covered or wet road surfaces is much smaller than that of dry road surfaces, which has a great effect on the traffic safety and maneuverability of vehicle, so by timely obtaining the information of road conditions and issuing warning can greatly reduce potential impairments. In this paper, the application of image?based semantic segmentation network to the recognition of water?covered and wet road conditions is studied, which can not only predict the road conditions in the future, but also obtain the distribution of water?covered and wet areas on road. The method proposed utilizes the semantic segmentation network Res-UNet++ to segment the water?covered and wet areas on road pavement. The Res-UNet++ structure includes an embedded encoder?decoder structure of different depths, with a residual structure added on the feature extraction part of the network to make image features easier to learn. The method adopted achieves an average segmentation accuracy of 90.07% in MIoU, and overcomes the defects of other methods.

Key words: detection of water?covered and wet areas, encoder?decoder, deep learning, semantic segmentation network