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Real-Time and Accurate Target Location Method Based on Artificial Mark

  • Qiaoling MengEmail author
  • Haitao Wang
  • Hongliu Yu
  • Meng Wang
  • Bingshan Hu
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 576)

Abstract

A real-time and accurate target location method based on the artificial mark is proposed in the applications of wheelchair nursing bed docking. The artificial mark consists of the lines and the circles. Target-oriented edge detection is realized by using the modified Sobel operator, and morphology filtering is used to realize the edge extraction of the artificial mark area. The image segmentation is achieved based on the extracted edge image. In addition, location accurately on the segmented image is realized by using the method of the gravity center. The experimental results show that the subpixel level location is achieved under the complex background. The accuracy of the location method is less than 5 mm, and the location process takes 36 ms.

Keywords

Artificial mark Target-oriented edge detection Image segmentation Subpixel level location 

Notes

Acknowledgements

The work reported in this paper is supported by Shanghai Science and Technology Committee, number: 15DZ1941902 & 18441907300 and Shanghai Engineering Research Center of Assistive Devices, number: 15DZ2251700.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Qiaoling Meng
    • 1
    • 2
    • 3
    Email author
  • Haitao Wang
    • 1
    • 2
    • 3
  • Hongliu Yu
    • 1
    • 2
    • 3
  • Meng Wang
    • 1
    • 2
    • 3
  • Bingshan Hu
    • 1
    • 2
    • 3
  1. 1.Institute of Rehabilitation Engineering and Technology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and TechnologyShanghaiPeople’s Republic of China
  2. 2.Shanghai Engineering Research Center of Assistive DevicesShanghaiPeople’s Republic of China
  3. 3.Key Laboratory of Neural-Functional Information and Rehabilitation Engineering of the Ministry of Civil AffairsShanghaiPeople’s Republic of China

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