| 三维测量光流恢复算法结合BIM对震后建筑倾斜度测量的研究 |
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| 引用本文： | 谷伟,董婧蒙.三维测量光流恢复算法结合BIM对震后建筑倾斜度测量的研究[J].西北地震学报,2019,41(4):1086-1091. |
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| 作者姓名： | 谷伟 董婧蒙 |
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| 作者单位： | 重庆广播电视大学城市建设工程学院, 重庆 400052,重庆大学资源及环境科学学院, 重庆 400044 |
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| 基金项目： | 国家自然科学基金（51679017）；重庆市教委新技术推广项目（GZTG201615）；重庆市高教学会高等教育科学研究重点课题项目（CQGJ17038A） |
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| 摘 要： | 震后危险建筑倾斜度的移动测量过程较为复杂,常规测量方法会存在对称偏差。为了提高震后危险建筑倾斜度测量的准确性,设计三维测量光流恢复算法结合BIM的震后建筑倾斜度测量方法。采用BIM技术采集并整合全部建筑倾斜度信息,构建危险建筑信息模型;采用三维测量光流恢复算法获取所构建建筑信息模型内多个目标特征点,设计震后危险建筑倾斜度的三维测量模型。仿真实验说明,所提方法测量震后危险建筑三维坐标值误差率均小于0.4%,平均评估时间仅为2.5 s,说明该方法可提高建筑倾斜度评估效果。
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| 关 键 词： | BIM 强震 危险建筑 倾斜度 光流恢复算法 三维测量模型 |
| 收稿时间： | 2018/10/27 0:00:00 |
Inclination Measurement of Buildings after Earthquake Based on Three-Dimensional Measurement Using Optical Flow Recovery Algorithm and Building Information Modeling |
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| GU Wei and DONG Jingmeng.Inclination Measurement of Buildings after Earthquake Based on Three-Dimensional Measurement Using Optical Flow Recovery Algorithm and Building Information Modeling[J].Northwestern Seismological Journal,2019,41(4):1086-1091. |
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| Authors: | GU Wei and DONG Jingmeng |
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| Institution: | School of Urban Construction Engineering, Chongqing Radio and Television University, Chongqing 400052, China and College of Resources and Environmental Sciences, Chongqing University, Chongqing 400044, China |
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| Abstract: | After an earthquake occurs, the moving measurement of the inclination of dangerous buildings is complex, and the conventional measurement methods present a symmetrical deviation. Therefore, to improve the accuracy of the measurement of inclination, a three-dimensional (3D) measurement through optical flow recovery algorithm combined with building information modeling (BIM) was designed. The BIM technology is used to collect and integrate all the building inclination information and thereafter the dangerous building information model is constructed. The 3D measurement through optical flow recovery algorithm was used to obtain the target feature points in the constructed building information model. Based on this, a three-dimensional measurement model of inclination of dangerous buildings after the earthquake was designed. The simulation results showed that the error rate of 3D coordinate values of dangerous building, measured by the proposed method, is less than 0.4% and the average evaluation time is only 2.5 s, which indicates that this method can improve the evaluation effect of building inclination. |
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| Keywords: | BIM strong earthquake dangerous buildings degree of inclination optical flow recovery algorithm three-dimensional measurement model |
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