TROPICAL GEOGRAPHY ›› 2019, Vol. 39 ›› Issue (2): 309-317.doi: 10.13284/j.cnki.rddl.003119

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Knowledge Map Analysis of UAV Remote Sensing Research Based on Citespace

Liang Yuzhe1,Zheng Rongbao2,Xu Jiayuan2 and Zheng Zhijian2   

  1. ( 1. Guangdong Province Land Survey and Planning Institute, Guangzhou 510075, China; 2. College of Management, Guangdong University of Technology, Guangzhou 510520, China)
  • Online:2019-03-05 Published:2019-03-05

Abstract: In recent years, remote sensing using unmanned aerial vehicles (UAV) has attracted considerable attention from scholars due to its advantages of low cost, high mobility, and high resolution. Therefore, understanding the research and development status of UAV remote sensing has become indispensable for research in this field. In this study, 1048 UAV remote sensing related publications in core journals of the Web of Science were visualized and analyzed by using Citespace software. Results showed that: first, after 2008, the relevant research literature of UAV remote sensing grew rapidly, mainly focused on remote sensing science, engineering, imaging science, photography technology, geology, physical geography, environmental science, ecology, agricultural science and other fields. Second, the United States, China, Spain, and other countries have a large number of publications and a strong research profile in the field of UAV remote sensing. Among them, the Chinese Academy of Sciences has the largest number of publications, and the h-index of Spain's top scientific research council is the highest, both of which have great influence. The h-indices of Australian scholar Lucieer A and Spanish scholar Zarco-Tejada PJ were relatively high and they are representative scholars in this field. Third, UAV remote sensing research is focused on the following three parts: 1) applied research of UAV remote sensing in the field of agriculture and ecology. UAV remote sensing can overcome the problems of high cost, low resolution, and weak turnover of traditional agricultural and ecological remote sensing products. 2) Thanks to the high resolution data of UAV remote sensing, research on image classification methods, such as support vector machine, neural network, and expert systems, has been promoted. 3) Research on photography and computer vision technology. UAV remote sensing can provide a large quantity of high-resolution data for 3d reconstruction research, which greatly promotes the development of 3d reconstruction, especially SfM (Structure-from-Motion).

Key words: UAV remote sensing, bibliometrics, visualization analysis, Citespace, hot spots and frontiers