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趙云莉
( 中煤科工集團武漢設計研究院有限公司 ,湖北 武漢 400083)
摘 要:為了獲得高質量外立面三維重建模型,三維展現細節元素,研究基于BIM技術的大型建筑綜合體外立面三維重建算法。運用雙邊濾波算法,進行大型建筑綜合體外立面的初始三維點云數據去噪,結合RANSAC算法與歐式聚類算法,進行外立面三維點云數據的分割處理,得到不同平面外立面的三維點云數據,分析各平面外立面內的不同元素特征線,向BIM技術的Revit軟件內導入此類元素特征線,通過函數連接同平面外立面內各元素特征線后,得到不同平面的外立面重建模型,合并后獲得整體大型建筑綜合體外立面三維重建模型。試驗結果表明,可去除外立面初始三維點云數據內噪聲,高效精準地分割不同平面的外立面三維點云數據,最終所得大型建筑綜合體外立面三維重建模型整體質量較高,可清晰呈現模型內細節元素,為城市規劃建設提供保障。
關鍵詞 :BIM 技術 ;大型建筑 ;綜合體外立面 ;三維重建 ;雙邊濾波 ;Revit 技術
中圖分類號 :P232
文獻標志碼 :A
文章編號 :1005- 8249 (2023) 03- 0018- 07
DOI : 10. 19860/j . cnki . issn1005- 8249. 2023 . 03 . 018
ZHAO Yunli
( China Coal Science and Industry Group , Wuhan Design and Research Institute Co. ,Ltd. ,Wuhan 400083 , China)
Abstract: In order to obtain a high-quality 3D reconstruction model of the external facade and display the detail elements in 3D, the 3D reconstruction algorithm of the external facade of large-scale buildings based on BIM Technology is studied. The bilateral filtering algorithm is used to denoise the initial three-dimensional point cloud data of the comprehensive external facade of large buildings. Combined with the RANSAC algorithm and the European clustering algorithm, the three-dimensional point cloud data of the external facade are segmented to obtain the three-dimensional point cloud data of different plane external facades, analyze the different element characteristic lines in each plane external facade, and import such element characteristic lines into the Revit software of BIM Technology, After connecting the characteristic lines of each element in the same plane facade by function, the facade reconstruction models of different planes are obtained. After merging, the 3D reconstruction model of the comprehensive external facade of the whole large-scale building is obtained. The experimental results show that the noise in the initial three-dimensional point cloud data of the facade can be removed, and the three-dimensional point cloud data of the facade of different planes can be segmented efficiently and accurately. Finally, the overall quality of the three-dimensional reconstruction model of the comprehensive external facade of large-scale buildings is high, which can clearly show the details in the model, and provide a guarantee for urban planning and construction.
Keywords : BIM technology; large buildings ; comprehensive exterior facade ; 3D reconstruction; bilateral filtering; revit technology
作者簡介 :趙云莉 (1980—) , 女,本科,高級建筑師,一級注冊建筑師。主要研究方向:建筑設計。
收稿日期 :2022- 06- 06
冀公網安備13011002000529 技術支持:數字河北 