测绘通报 ›› 2022, Vol. 0 ›› Issue (7): 87-92.doi: 10.13474/j.cnki.11-2246.2022.0209

• 学术研究 • 上一篇    下一篇

面向数字孪生城市的自然场景构造方法

贺彪1,2, 郭仁忠1,2,3, 张琛1,3, 马丁1,2, 王伟玺1,2, 洪武扬1, 陈业滨1   

  1. 1. 深圳大学智慧城市研究院, 广东 深圳 518060;
    2. 深圳市城市数字孪生技术重点实验室, 广东 深圳 518060;
    3. 武汉大学资源与环境科学学院, 湖北 武汉 430079
  • 收稿日期:2022-03-07 发布日期:2022-07-28
  • 作者简介:贺彪(1983—),男,博士,副教授,研究方向为智慧城市信息化理论与技术、城市三维场景构造、城市空间语义关联。E-mail:hebiao@szu.edu.cn
  • 基金资助:
    国家自然科学基金重点项目(41930104)

A natural scene construction method for digital twin cities

HE Biao1,2, GUO Renzhong1,2,3, ZHANG Chen1,3, MA Ding1,2, WANG Weixi1,2, HONG Wuyang1, CHEN Yebin1   

  1. 1. Research Institute for Smart Cities, Shenzhen University, Shenzhen 518060, China;
    2. Shenzhen Key Laboratory of Digital Twin Technologies for Cities, Shenzhen 518060, China;
    3. School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
  • Received:2022-03-07 Published:2022-07-28

摘要: 自然场景内要素种类繁多、结构复杂,在数字孪生城市中还原自然场景具有挑战性。数字孪生城市中的自然场景不仅要使用高逼真的三维模型,还要能表现自然环境中要素的生长过程、结构组成和分布规律,同时满足不同尺度下的场景变换,构造出既符合空间分布规律又具有沉浸式体验的场景。本文从自然场景构造过程的角度分析了场景构造的4个关键技术问题,回顾了目前场景要素建模和场景构造方法,并提出了一种面向数字孪生城市的自然场景构造技术框架。

关键词: 自然场景构造, 数字孪生城市, 三维重建, 建模与可视化

Abstract: The digital twin city seeks to restore the urban scene that is close to the reality and provides immersive experience based on the completeness of the urban entity. Natural scene plays an important role in urban scenes. However, natural scene construction faces many challenges due to its diverse types, complex structure and indeterminate location of the scene components. With the development of digital twin city, natural scene construction requires not only high-quality 3D models of scene components but also their ecological characteristics such as growth processes, structural compositions and distribution rules in the natural environment to cope with scene simulations at different scales. Moreover, these structural-functional models result in an in-depth scene visualization that facilitate both better spatial cognition and immersive experience. This paper identifies the key issues of natural scene construction from the perspective of the scene construction process, reviews the relevant, state-of-art techniques and methods of 3D scene construction, and further proposes a natural scene construction framework for digital twin city.

Key words: natural scene construction, digital twin cities, 3D reconstruction, modelling and visualization

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