Journal
CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
Volume 34, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/cpe.6655
Keywords
object detection; point cloud mapping; SLAM; target localization
Funding
- Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance in Three Gorges University [2020KJX02]
- Hubei Provincial Department of Education [D20191105]
- National Defense PreResearch Foundation of Wuhan University of Science and Technology [GF201705]
- National Natural Science Foundation of China [41906177, 51505349, 51575407, 52075530, 61733011]
- Key Laboratory for Metallurgical Equipment and Control of Ministry of Education inWuhan University of Science and Technology [2018B07, 2019B13]
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This paper combines target detection with SLAM to search and locate targets in unknown environments using RGBD image information, improving map readability and target accuracy while reducing time and point cloud quantity in dense mapping.
Target localization in unknown environment is one of the development directions of mobile robots. Simultaneous localization and mapping (SLAM) can be used to build maps in unknown environments, but it has the problem of poor readability and interactivity. In this article, target detection and SLAM are combined to search and locate the target by using rich RGBD images information. The determined position in the global map is conducive to the follow-up operation of the target by mobile robots. By establishing a local dense point cloud map of the target object, the current state of the target object is directly displayed, the readability of the map is improved, and the disadvantages of difficult understanding of the global sparse map and slow construction of the global dense map are avoided. A target localization algorithm under the framework of yolov4 is designed to apply in the process of SLAM global mapping. Our works are helpful for obtaining positions of objects in three-dimensional space. The experimental results show that the time-consuming of this method in dense mapping is reduced by 50%-70%, and the number of point clouds is also reduced by 60%-70%.
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