Bulletin of Surveying and Mapping ›› 2019, Vol. 0 ›› Issue (12): 101-104.doi: 10.13474/j.cnki.11-2246.2019.0395

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Visualized analysis framework on big geo-information data oriented spatio-temporal events

LI Jinlei1, CI Yuyao2, ZHENG Kun2, GUO Shaolong1, YAN Jihong1, CHEN Yuping2, WU Yanmin3, LI Shiyi3   

  1. 1. Exploration Branch of China Petrochemical Co., Ltd., Chengdu 610041, China;
    2. China University of Geosciences(Wuhan) School of Geosciences and Information Engineering, Wuhan 430074, China;
    3. Beijing Create Space-Time Science and Technology Limited Company, Beijing 100083, China
  • Received:2019-10-08 Revised:2019-10-30 Published:2020-01-03

Abstract: Rich spatio-temporal relations are hidden in types of big geo-data, which represent the evolution of individual or collective spatio-temporal events and play a decisive role in intelligent applications such as natural resources, environments, transportation and other fields. However, there are many difficulties in digging the spatio-temporal relationship, due to the large number of attributes embedded in multi-scale and multi-semantic big geo-data. It is a technical challenge to effectively construct multi-scale and multi semantic spatio-temporal and as well as to visualize the relations. In this paper, we design an analysis framework to visualize the spatio-temporal relations among spatio-temporal events. we design a multi-view collaboration to visualize the spatio-temporal relations among events by describing a general definition for spatio-temporal relations in spatio-temporal events. A visual interface is presented for users to interactively select or filter spatial and temporal extents to guide the knowledge discovery process. Followed by experimental application on spatio-temporal trajectory data shows that this method can explore the spatio-temporal relationship between spatio-temporal events and context, and realize the interactive visual analysis of spatio-temporal events.

Key words: big geo-information data, visual analysis, spatio-temporal relations, spatio-temporal events, trajectory data

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