基于语义索引的公路设计数据实景合成技术研究  

Research on Real Scene Synthesis Technology of Highway Design Data based on Semantic Index

作　　者：彭洪涛 张涛 相诗尧 吕素岩 赵杰 郭长顺 崔永林 李兵 PENG Hong-tao;ZHANG Tao;XIANG Shi-yao;LYU Su-yan;ZHAO Jie;GUO Chang-shun;CUI Yong-lin;LI Bing(Jinan Transportation Development Center,Jinan 250013,China;Research and Development Center of Life Cycle BIM Technologies Application,Shandong Provincial Communications Planning and Design Institute Co.Ltd.,Jinan 250101,China)

机构地区：[1]济南市交通运输事业发展中心,济南市250013 [2]山东省交通规划设计院集团有限公司全寿命周期BIM技术应用研发中心,济南市250101

出　　处：《公路》2025年第3期238-243,共6页Highway

基　　金：山东省交通规划设计院集团有限公司横向课题,项目编号KJ-2022-SJYJT-32X;山东省交通规划设计院集团有限公司科技创新项目,项目编号KJ-2020-08。

摘　　要：传统幻灯片等公路设计方案演示方式存在矛盾表达不具象、方案展示不连续与定性定量不准确等问题;无人机实景视频应用于公路设计中仅能简单反映现场环境,难以清晰、全面地表达设计意图。提出一种基于语义索引的公路设计数据实景合成技术,首先获取高清、无抖的无人机实景视频,然后收集公路设计数据并创建其语义信息模型,接着利用“物-像-机”透视几何关系构建航线模型与三维世界坐标系统,最后基于语义索引机制实现两者的自动融合,从而合成能够全面表达设计意图的高清演示视频。试验表明,本方法将公路设计数据与实景视频进行有机融合,实现了两者信息互补,丰富了数字化看线新方式,其成果视频给人带来强烈的临场感,为公路设计评审提供科学的决策依据。The traditional presentation methods of highway design schemes such as slides have problems such as inconsistent expression,discontinuous scheme presentation,and inaccurate qualitative and quantitative analysis,and a single aerial video can only simply reflect the on-site environment,making it difficult to clearly and comprehensively express the design intent.In the paper,a real scene synthesis technology of highway design data is proposed based on semantic index.First,high-definition and shake free aerial video are obtained,and highway multi-modal design data are collected to create a semantic information model of the data.Then,the perspective geometric relationship of“Object-Image-Machine”is used to construct the route model and 3D world coordinate system.Finally,based on the semantic indexing mechanism,the automatic integration and optimization of the two is realized,and the high-definition demonstration video that fully expresses the design intent is output.This method organically integrates highway design data with real scenario video,achieving complementary information between the two and enriching new digital line viewing methods.The output videos bring a strong sense of presence and provide scientific decision-making basis for highway design review.

关 键 词：公路设计数据 实景视频 语义信息模型 三维世界坐标 自动融合 设计评审 

分 类 号：U412.36[交通运输工程—道路与铁道工程] U495