摘要
为确保桥梁安全运行,及时掌握建筑结构的健康状况,需要对桥梁变形进行连续动态的监测;提出了一种基于CCD图像测量的桥梁变形监测方法;系统用CCD相机对远距离目标进行连续成像,然后进行目标识别和跟踪测量,并采用五点平均法抑制大气抖动,最后根据多个相机在不同方向测得的数据进行数据融合,形成物体的三维实时运动信息;理论和实验都表明该方法能达到亚毫米级的测量精度。
To keep bridges working well and inspecting their state in time, it is very necessary to keep on detecting their deformation. A new method of bridge deformation detection is presented. The system captures the CCD image sequences, then detects the targets in the long distance depending on the continuity of the movement of the targets using five points average to restrain atmospheric agitation, and finally forms 3D real-time kinetic information after data fusion of multi-CCD. Both the theory and simulation experiments results prove that the performance of this method can meet the subpixel precision.
出处
《计算机测量与控制》
CSCD
2006年第5期583-585,602,共4页
Computer Measurement &Control
关键词
CCD
桥梁变形
图像处理
大气抖动
CCD
bridge deformations image processing
atmospheric agitation
