基于近景摄影测量的建筑物结构动态位移监测系统  

Monitoring System of Building Structure Dynamic Displacement Based on Close-Range Photogrammetry

作　　者：蒋华[1] 龚德书[1] 

机构地区：[1]南通大学,江苏南通226019

出　　处：《南通大学学报（自然科学版）》2010年第4期19-23,共5页Journal of Nantong University(Natural Science Edition)　

基　　金：江苏省现代教育技术研究项目(17114);南通市应用研究计划项目(K2008015;K2009003);南通大学课程建设项目(09032);南通大学杏林学院教研项目(2010J223)

摘　　要：针对建筑物结构动态位移监测的难点,给出一种基于近景摄影测量的建筑物结构动态位移监测方法.利用二维直接线性变换算法进行图像标定,计算出像平面坐标和物平面坐标之间的转换参数,从而对连续序列图像中的目标坐标进行求解.实验结果表明,物平面坐标解算值与物平面坐标之间的绝对误差在1 mm左右,特别适用于建筑物需要对其应力状况、振动响应等情况进行监测的场合.To overcome the difficulties of building structure dynamic displacement monitoring, a surveying method of building structure dynamic displacement based on close-range photogrammetry was given. Using 2D direct linear transformation algorithm, the measurement software calculated the transformation parameters between image planes coordinate and object plane coordinate through image calibration, so as to solve the object coordinate for the continuous sequence images. The results showed that the absolute deviation between the calculation value and the object plane coordinate were lower than 1 mm. This technology was especially effective in the situations where the monitoring of stress state and vibration response of building structures were needed.

关 键 词：近景摄影测量 结构动态位移 监测 二维直接线性变换 

分 类 号：TU198[建筑科学—建筑理论]