Computer Science

Computer Science ›› 2021, Vol. 48 ›› Issue (9): 168-173.doi: 10.11896/jsjkx.200800001

• Computer Graphics & Multimedia • Previous Articles     Next Articles

Improved YOLOv3 Remote Sensing Target Detection Based on Improved Dense Connection and Distributional Ranking Loss

YUAN Lei1, LIU Zi-yan1, ZHU Ming-cheng1, MA Shan-shan1, CHEN Lin-zhou-ting2   

  1. 1 College of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China
    2 School of Aerospace Engineering,Guizhou Institute of Technology,Guiyang 550003,China
  • Received:2020-08-01 Revised:2020-09-10 Online:2021-09-15 Published:2021-09-10
  • About author:YUAN Lei,born in 1995,postgraduate.His main research interests include deep learning and object detection.
    LIU Zi-yan,born in 1974,associate professor,postgraduate supervisor,is a member of China Computer Federation.Her main research interests include wireless communication system,mobile robot and big data mining analysis.
  • Supported by:
    Science and Technology Foundation of Guizhou Province,China([2016] 1054),Joint Funding Project of Guizhou Province,China([2017]7226),Special Project on the Training and Innovation of New Academic Seedlings of Guizhou University in 2017,China([2017] 5788),Science and Technology Program of Guizhou Province,China([2017] 1069),Major Research Projects on Innovative Groups of Guizhou Provincial Department of Education([2018]026),Engineering Research Center of Ordinary Colleges and Universities of Guizhou Province([2018]007) and Key Projects of Science and Technology Program of Guizhou Province([2019]1416)

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Abstract: Aiming at solving the problems of small object size,uneven sample distribution,and unclear features in remote sensing images,an improved YOLOv3 object detection algorithm is proposed.The Stitcher data enhancement method is used to solve the problem of uneven distribution of small object samples.The VOVDarkNet-53 is proposed.The residual modules of the fourth downsampling in DarkNet-53 are reduced from eight to four.And then the dense connection mode of VOVNet is adopted to extract lower features of small objects to increase the network receptive field.The distributional ranking loss is used to improve the classification loss in YOLOv3 to solve the problem of imbalance between positive and negative samples in single-stage object detector.Comparative experiments are carried out on HRRSD remote sensing datasets by using YOLOv3 object detection algorithm and improved YOLOv3 algorithm.The results demonstrate that the proposed algorithm can achieve better performance of higher detection accuracy of the improved YOLOv3 algorithm for small objects and medium objects are improved by 7.2% and 2.1%,respectively.Although the detection accuracy for large objects is reduced by 1%,the average detection accuracy (mAP) is improved by 4.1%,and the recall and accuracy are also improved.

Key words: Baseline, Object detection, Remote sensing image, Sample imbalance, YOLOv3

CLC Number: 

  • TP391.4
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