Bulletin of Surveying and Mapping ›› 2022, Vol. 0 ›› Issue (11): 171-174.doi: 10.13474/j.cnki.11-2246.2022.0347

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High-precision map production technology and 3D visual expression based on multi-source data

LUO Guangfei1, LIU Yunbo1, WANG Zhi2,3, LIAO Yinqi4, ZHAO Ping5, SUN Na2,3, LU Wangda2,3   

  1. 1. Zhejiang Research Institute of Surveying and Mapping Science and Technology, Hangzhou 310030, China;
    2. Qingdao Surveying & Mapping Institute, Qingdao 266032, China;
    3. Qingdao Engineering Research Center of Geographical Information of Underground Space, Qingdao 266032, China;
    4. Chongqing Survey Institute, Chongqing 401120, China;
    5. Zhuji Real Estate Registration Service Center, Shaoxing 311800, China
  • Received:2022-06-04 Revised:2022-09-21 Published:2022-12-08

Abstract: With the mass production and gradual popularity of self-driving cars, the demand for high-precision maps is also increasing. Cars can realize the accurate perception of the driving environment through the high-precision map, so as to realize the safety and reliability of driving. The method of extracting the vector line drawing of high-precision map from multi-source heterogeneous data such as tilt model and vehicle mobile scanning point cloud is proposed, and analysing the different source data on the accuracy of data extraction, and discussing the spatial expression, attribute stratification and association rules of the high-precision map data model. We study the implementation of 3D visualization of high precision map, and propose feasible technical methods to provide a reference value for the production of high precision map.

Key words: high-precision map, point cloud, tilt model, modeling, 3D visualization

CLC Number: