测绘通报 ›› 2024, Vol. 0 ›› Issue (8): 20-25.doi: 10.13474/j.cnki.11-2246.2024.0804

• 第八届测绘科学前沿技术论坛获奖论文 • 上一篇    

实景三维场景下的地质灾害识别特征与潜力分析

王德富1,2, 刘立1,2, 李永鑫1,2, 张志强1,2, 罗超1, 廖洋洋1   

  1. 1. 自然资源部第三地理信息制图院, 四川 成都 610100;
    2. 自然资源部数字制图与国土信息应用重点实验室, 四川 成都 610100
  • 收稿日期:2024-02-20 发布日期:2024-09-03
  • 通讯作者: 刘立。E-mail:274114486@qq.com
  • 作者简介:王德富(1990—),男,硕士,工程师,主要从事水工环地质与测绘遥感工作。E-mail:497333919@qq.com
  • 基金资助:
    四川省滑坡灾害隐患遥感智能防控体系部省合作研究项目(SCDZRS2023);四川测绘地理信息局2024年测绘地理信息技术融合研究项目(2024KJ001);四川省测绘地理信息学会开放基金(CCX202405;CCX202406)

Identification characteristics and potential analysis of geological hazards in realistic 3D scenes

WANG Defu1,2, LIU Li1,2, LI Yongxin1,2, ZHANG Zhiqiang1,2, LUO Chao1, LIAO Yangyang1   

  1. 1. The Third Geoinformation Mapping Institute of Ministry of Natural Resources, Chengdu 610100, China;
    2. Key Laboratory of Digital Mapping and Homeland Information, Ministry of Natural Resourcess, Chengdu 610100, China
  • Received:2024-02-20 Published:2024-09-03

摘要: 地质灾害的准确识别与分析是防治预警前的关键环节,相比二维解译环境,实景三维因其立体化、真实化特点,突显出了更加有利的数据优势。本文以实景三维建设为契机,采用三维视觉分析方法,建立滑坡拉张裂缝、剪切裂缝、新鲜滑塌、滑坡壁、下挫台坎,崩塌危岩、坡脚堆积,泥石流物源区、流通区和堆积区共12种三维识别标志特征;采用三维WebGIS技术解析滑坡、崩塌立体特征,并从几何信息、影像特征、微地貌等方面,分析总结了实景三维应用潜力。结果表明,实景三维为地质灾害解译提供了新的纬度,增强了地质灾害识别能力,解译结果更符合实际,有助于提高解译精度。研究成果可为实景三维应用提供启示,为地质灾害隐患高质量识别研究提供借鉴价值。

关键词: 实景三维, 地质灾害, 立体识别, 典型解析, 应用潜力

Abstract: Accurate identification and analysis of geological hazards is a crucial step before prevention and early warning. Compared to 2D interpretation environments, the 3D reality of real scenes highlights more favorable data advantages due to its 3D and realistic characteristics. This article takes the real scene 3D construction as the background and adopts the 3D visual analysis method to establish a total of 12 3D identification characteristics for landslide tension cracks, shear cracks, fresh landslides, landslide walls, falling platforms, collapsed dangerous rocks, slope foot accumulation, debris flow source area, circulation area, and accumulation area; Using 3D webGIS technology to analyze the 3D characteristics of landslides and collapses, and analyzing and summarizing the potential of real-world 3D applications from geometric information, image features, micro topography, and other aspects. The results indicate that real-world 3D provides a new dimension for geological hazard interpretation, enhances the ability to identify geological hazards, and the interpretation results are more in line with reality, which helps to improve interpretation accuracy. The research results can provide inspiration for real-time 3D applications and provide reference value for high-quality identification of geological hazard hazards.

Key words: realistic 3D, geologic hazard, stereoscopic recognition, typical analysis, application potential

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