Volume 30 Issue 1
Jan.  2021
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Article Contents
JIN Sheng, CHEN Liang, GAO Yu, SHEN Changqing, SUN Rongchuan. Learning a Deep Metric: A Lightweight Relation Network for Loop Closure in Complex Industrial Scenarios[J]. Chinese Journal of Electronics, 2021, 30(1): 45-54. doi: 10.1049/cje.2020.11.005
Citation: JIN Sheng, CHEN Liang, GAO Yu, SHEN Changqing, SUN Rongchuan. Learning a Deep Metric: A Lightweight Relation Network for Loop Closure in Complex Industrial Scenarios[J]. Chinese Journal of Electronics, 2021, 30(1): 45-54. doi: 10.1049/cje.2020.11.005

Learning a Deep Metric: A Lightweight Relation Network for Loop Closure in Complex Industrial Scenarios

doi: 10.1049/cje.2020.11.005
Funds:

the National Natural Science Foundation of China 51875375

the National Natural Science Foundation of China 61673288

More Information
  • Author Bio:

    JIN Sheng  was born in 1995. He received the M.S. degree from Soochow University in 2020. His research interests include computer vision and visual loop closure detection. (Email: 773903267@qq.com)

    GAO Yu   received the Ph.D. degree in electrical engineering from Chonbuk National University. He is now a lecturer at Soochow University. His research topic is intelligent robots. (E-mail: ygao@suda.edu.cn)

    SHEN Changqing   received the Ph.D. degree in systems engineering and engineering management from the City University of Hong Kong in 2014. He is currently an Associate Professor at Soochow University. His research topic is intelligent fault diagnosis. (Email: cqshen@suda.edu.cn)

    SUN Rongchuan   received the Ph.D. degree in mechanical and electronic engineering from Shenyang Institute of Automation Chinese Academy of Sciences. He is now an Associate Professor at Soochow University. His research topic is visual SLAM. (E-mail: sunrongchuan@suda.edu.cn)

  • Corresponding author: CHEN Liang  (corresponding author) received the Ph.D. degree in control engineering from Zhejiang University in 2009. He is now an Associate Professor at Soochow University. His research topic is deep learning based intelligent control. (E-mail: chenl@suda.edu.cn)
  • Received Date: 2019-08-26
  • Accepted Date: 2020-07-10
  • Publish Date: 2021-01-01
  • The similarity metric in Loop closure detection (LCD) is still considered in an old fashioned way, i.e. to pre-define a fixed distance function, leading to a limited performance. This paper proposes a general framework named LRN-LCD, i.e. a Lightweight relation network for LCD, which combines the feature extraction module and similarity metric module into a simple and lightweight network. The LRN-LCD, an end-to-end framework, can learn a non-linear deep similarity metric to detect loop closures from different scenes. Moreover, the LRN-LCD supports image sequences as input to speed up the similarity metric in real-time applications. Extensive experiments on several open datasets illustrate that LRN-LCD is more robust to strong condition variations and viewpoint variations than the mainstream methods.
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