测绘学报 ›› 2025, Vol. 54 ›› Issue (6): 1054-1070.doi: 10.11947/j.AGCS.2025.20240347

• 摄影测量学与遥感 • 上一篇    下一篇

视觉感知导向的实景三维建筑场景LOD自适应可视化

林浩嘉1,2,3,4(), 郭仁忠1,3,4, 贺彪1,3,4(), 蒯希1,3,4, 马丁1,3,4, 李程鹏1,3,4   

  1. 1.深圳大学建筑与城市规划学院智慧城市研究院,广东 深圳 518060
    2.自然资源部数字制图与国土信息应用重点实验室,湖北 武汉 430079
    3.亚热带建筑与城市科学全国重点实验室,广东 深圳 518060
    4.粤港澳智慧城市联合实验室,广东 深圳 518060
  • 收稿日期:2024-08-26 修回日期:2025-04-14 发布日期:2025-07-14
  • 通讯作者: 贺彪 E-mail:linhaojia@szu.edu.cn;hebiao@szu.edu.cn
  • 作者简介:林浩嘉(1993—),男,博士,研究方向为地图学、三维GIS、智慧城市等。E-mail:linhaojia@szu.edu.cn
  • 基金资助:
    国家自然科学基金(42401537);自然资源部数字制图与国土信息应用重点实验室开放研究基金(ZRZYBWD202304);深圳市科技重大专项(KJZD20230923115219040)

Visual-perception-oriented LOD adaptive visualization for realistic 3D building scenes

Haojia LIN1,2,3,4(), Renzhong GUO1,3,4, Biao HE1,3,4(), Xi KUAI1,3,4, Ding MA1,3,4, Chengpeng LI1,3,4   

  1. 1.Research Institute for Smart City, School of Architecture and Urban Planning, Shenzhen University, Shenzhen 518060, China
    2.Key Laboratory of Digital Mapping and Land Information Application, Ministry of Natural Resources, Wuhan 430079, China
    3.State Key Laboratory of Subtropical Building and Urban Science, Shenzhen 518060, China
    4.Guangdong-Hong Kong-Macau Joint Laboratory for Smart Cities, Shenzhen 518060, China
  • Received:2024-08-26 Revised:2025-04-14 Published:2025-07-14
  • Contact: Biao HE E-mail:linhaojia@szu.edu.cn;hebiao@szu.edu.cn
  • About author:LIN Haojia (1993—), male, PhD, majors in cartography, 3D GIS, smart cities, et al. E-mail: linhaojia@szu.edu.cn
  • Supported by:
    The National Natural Science Foundation of China(42401537);Open Research Fund Program of Key Laboratory of Digital Mapping and Land Information Application, Ministry of Natural Resources(ZRZYBWD202304);Shenzhen Major Science and Technology Special Projects(KJZD20230923115219040)

摘要:

三维模型多分辨率表征(LOD)是三维场景可视化的重要技术。然而,对于具有真实程度高、尺度跨度大、数据规模大等特点的实景三维建筑场景可视化,仍存在可视化质量度量不准确、层次切换不连续、渲染效率不稳定等问题,难以在视点变换过程中保持视觉舒适性。本文提出了视觉感知导向的三维建筑场景LOD自适应可视化方法。首先,综合考虑三维渲染与视觉感知的过程与机理,对LOD可视化的视觉感知过程与特性进行归纳总结;然后,基于“三维空间-屏幕空间-视觉感知”的变换过程,对LOD可视化中简化模型误差的视觉感知进行量化表征,提出了基于视觉感知的LOD可视化质量度量方法;最后,将LOD可视化质量度量运用至LOD调度,综合考虑视觉关注和视点运动对可视化质量度量的影响,建立LOD层次选择准则,结合多线程调度技术,提出了顾及视觉感知特性的LOD自适应调度方法。试验结果表明,本文方法可以保持LOD切换过程的视觉舒适性,在可视化质量与效率之间保持动态平衡,实现了符合人眼视觉感知的三维建筑场景LOD自适应调度与渲染。

关键词: 视觉感知, LOD, 多尺度表达, 三维可视化, 实景三维

Abstract:

Multi-resolution representation of 3D models is an important technique for visualizing 3D scenes. However, when it comes to visualizing realistic 3D building scenes with high realism, large scale span, and large data volume, problems such as inaccurate visualization quality metrics, discontinuous level switching, and unstable rendering efficiency make it difficult to maintain visual comfort during viewpoint transformation. This study proposes a visual-perception-oriented LOD adaptive visualization method for realistic 3D building scenes. Firstly, the process of 3D rendering and the mechanism of visual perception are considered comprehensively, and the visual perception process and characteristics of LOD visualization are summarized. Secondly, based on the transformation process of “3D space-screen space-visual perception”, the visual perception of simplified model errors in LOD visualization is quantified, and a visual-perception-based quality metric for LOD visualization is proposed. Finally, an LOD selection criterion is established based on the LOD visualization quality metric and the impact of visual attention and viewpoint motion. Combined with multi-threaded scheduling technology, an LOD adaptive scheduling method that considers visual perception characteristics is proposed. Experimental results demonstrate that the proposed method effectively maintains visual comfort during LOD switching, ensuring a dynamic balance between visual quality and operating efficiency. Furthermore, the method facilitates adaptive scheduling and rendering of LOD for realistic 3D building scenes according to human visual perception.

Key words: visual perception, level of detail, multi-scale representation, 3D visualization, real-scene 3D

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