基于无人机+BIM的实景融合技术在航道工程中的应用  

Application of synthesizing three-dimensional model with real image in waterway engineering based on BIM and unmanned aerial vehicle

作　　者：杨琪 曹子行 王飞 YANG Qi;CAO Zihang;WANG Fei(Shanghai Waterway Engineering Design&Consulting Co.,Ltd.,Shanghai 200120,China)

机构地区：[1]中交上海航道勘察设计研究院有限公司,上海200120

出　　处：《水运工程》2024年第5期193-199,共7页Port & Waterway Engineering

基　　金：上海市科技创新行动计划项目(21DZ1201001)。

摘　　要：针对现有工程方案展示方法的缺陷和不足,基于开源软件Blender提出一种新方法。以某航道工程为例,通过无人机航拍及视频前处理、摄像机轨迹反求、三维建筑信息模型(BIM)建模及动画制作、合成输出等关键技术,实现在航拍照片/视频插入三维BIM/动画,并结合虚拟摄像机和渲染,达成两者在透视、材质、光影等多方面的融合嵌入。此方法既可保留航拍照片/视频低成本、高清晰、高还原度的优点,又可通过BIM/动画展示水下航道等此类遮蔽对象以及未建护岸、拌和站等目前不存在的对象及其施工建造过程。此方法学习和使用成本低,可推广性强,可应用于工程投标、方案评审以及对外汇报展示。In response to the deficiencies and limitations of the existing engineering project presentation methods,We propose a new approach based on the open-source software Blender.Taking a waterway project as an example,we use key techniques such as aerial photography and video preprocessing,camera trajectory reconstruction,3D building information modeling(BIM)and animation creation,as well as synthesis and output.This method inserts 3D BIM animation into aerial photos videos and achieves the fusion of the them in multiple aspects such as perspective,material,and light-shadow through virtual cameras and rendering.This method retains the advantages of low cost,high definition,and high fidelity of aerial photos videos,and enables the display of obstructed objects such as underwater waterway and non-existent structures such as revetment,mixer station and their construction processes through BIM animations.With its low learning and implementation cost,this method holds strong potential for widespread adoption and can be applied in engineering project bidding,scheme evaluations,and external presentation.

关 键 词：Blender BIM/动画 航拍照片/视频 实景融合 航道工程 工程方案展示 

分 类 号：U612[交通运输工程—船舶及航道工程] TP391.41[交通运输工程—船舶与海洋工程]