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数字孪生倾斜摄影模型轻量化技术的研究与应用

李震 谭卢师 范伟 王芳 田帅帅

水利信息化Issue(1):42-46,5.
水利信息化Issue(1):42-46,5.DOI:10.19364/j.1674-9405.2025.01.007

数字孪生倾斜摄影模型轻量化技术的研究与应用

Research and application of lightweight technology for digital twin oblique photogrammetry models

李震 1谭卢师 1范伟 1王芳 1田帅帅1

作者信息

  • 1. 黄河勘测规划设计研究院有限公司,河南 郑州 450003
  • 折叠

摘要

Abstract

To address the low efficiency of massive oblique photogrammetry models on digital twin platforms,this study proposed a lightweight method for oblique photogrammetry models based on the OBJ format.The method achieved a higher data simplification rate and can adaptively process irregular boundaries of photogrammetry models.The technical workflow included data parsing,texture compression,triangular mesh simplification,and spatial template-based mesh merging.Applied to the oblique photogrammetry model of Qingdao's urban area,the results showed a data reduction rate of approximately 43%and a 3D scene frame rate improvement of about 160%.This approach effectively reduced the number of model tiles and storage requirements while preserving geometric structure accuracy and primary texture features.It also ensured smooth transitions at mesh edges,avoiding significant geometric deformations and texture distortions.The method enhances data loading speed and rendering efficiency on application platforms while lowering hardware requirements.

关键词

倾斜摄影模型/轻量化/OBJ格式/二次误差度量/网格合并

Key words

oblique photogrammetry model/lightweight/OBJ format/quadric error metric/mesh merging

分类

天文与地球科学

引用本文复制引用

李震,谭卢师,范伟,王芳,田帅帅..数字孪生倾斜摄影模型轻量化技术的研究与应用[J].水利信息化,2025,(1):42-46,5.

基金项目

中国博士后科学基金项目(2021M701373) (2021M701373)

黄河勘测规划设计研究院有限公司自主研发基金项目(2023KY046) (2023KY046)

水利信息化

1674-9405

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