Journal of Geodesy and Geoinformation Science ›› 2019, Vol. 2 ›› Issue (2): 38-49.doi: 10.11947/j.JGGS.2019.0205

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Progress and Applications of Visual SLAM

Kaichang DI1,Wenhui WAN1,Hongying ZHAO2,Zhaoqin LIU1,Runzhi WANG1,Feizhou ZHANG2()   

  1. 1. State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China
    2. Institute of Remote Sensing and Geographic Information System, Peking University, Beijing 100871, China
  • Received:2018-10-05 Accepted:2019-03-11 Online:2019-06-20 Published:2020-03-20
  • Contact: Feizhou ZHANG E-mail:zhangfz@pku.edu.cn
  • About author:Kaichang DI(1967—), male, PhD, research fellow, PhD supervisor, majors in planetary mapping, visual localization and navigation. E-mail: dikc@radi.ac.cn
  • Supported by:
    The National Key Research and Development Program of China(2016YFB0502102);The National Natural Science Foundation of China(41471388)

Abstract:

Visual simultaneous localization and mapping (SLAM) provides mapping and self-localization results for a robot in an unknown environment based on visual sensors, that have the advantages of small volume, low power consumption, and richness of information acquisition. Visual SLAM is essential and plays a significant role in supporting automated and intelligent applications of robots. This paper presents the key techniques of visual SLAM, summarizes the current research status, and analyses the new trends of visual SLAM research and development. Finally, specific applications of visual SLAM in restricted environments, including deep space and indoor scenarios, are discussed.

Key words: visual SLAM; feature extraction; Kalman filter; graph based optimization; loop closure detection