测绘通报 ›› 2021, Vol. 0 ›› Issue (1): 108-111.doi: 10.13474/j.cnki.11-2246.2021.0020

• 技术交流 • 上一篇    下一篇

城市高精度实景三维单体模型建设及应用

孙松梅1, 黄天进1, 孙颖2   

  1. 1. 广州智迅诚地理信息科技有限公司, 广东 广州 510000;
    2. 中山大学地理科学与规划学院, 广东 广州 510275
  • 收稿日期:2020-09-28 修回日期:2020-11-23 发布日期:2021-02-08
  • 通讯作者: 孙颖。E-mail:sunying23@mail.sysu.edu.cn
  • 作者简介:孙松梅(1980-),女,硕士,工程师,主要研究方向为倾斜摄影测量。E-mail:1819969466@qq.com
  • 基金资助:
    国家自然科学基金(41801351)

Construction and application of high-precision three-dimensional monomerization model for urban scenes

SUN Songmei1, HUANG Tianjin1, SUN Ying2   

  1. 1. Guangzhou Smart Sonshing Geographic Information Technology Co., Ltd., Guangzhou 510000, China;
    2. School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China
  • Received:2020-09-28 Revised:2020-11-23 Published:2021-02-08

摘要: 倾斜摄影测量技术可以实时、综合感知大尺度、高精度的复杂城市场景,在获取正射影像的同时获得真实的立面纹理信息,为城市实景三维模型建设提供保证。本文分析了城市三维单体模型测量基本技术,按照城市要素类型对单体化模型进行分类,研究了二维与三维数据的融合方式,其精细单体化成果在广州市白云区665 km2城市实景三维模型建设中得到应用,在提高工作效率的同时降低了外业劳动强度。

关键词: 倾斜摄影测量, 城市高精度实景三维模型, 单体化模型, 精细单体化, 模型组织与分类

Abstract: Oblique photogrammetry can perceive complex urban scenes with large scale and high-precision in a real-time and comprehensively. Furthermore, the technology obtains real facade texture while acquiring an orthograph, which guarantees the construction of three-dimensional models of urban scenes. This paper analyzes the necessary technology of urban three-dimensional monomer model measurement, and classifies the monomer model according to the types of urban elements by studing the fusion of two-dimensiona and three-dimensiona data. The fine monomer results have been applied in the construction of 665 km2 urban three-dimensional model in Baiyun District, Guangzhou. It has been importantly used in the construction of the models, which not only improves work efficiency, but also reduces field labor intensity.

Key words: oblique photogrammetry, high-precision model of the city, monomer model, fine monomerization, model organization and classification

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