普通数码相机测定相似材料实验模型位移方法  

Displacement measurement method of similar material test model by ordinary digital photography

作　　者：姚顽强[1] 汤伏全[1] 

机构地区：[1]西安科技大学测绘科学与技术学院,陕西西安710054

出　　处：《煤炭学报》2009年第9期1223-1227,共5页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(40472104);陕西省自然科学基金资助项目(2006Z10);陕西省教育厅专项基金资助项目(07JK323)

摘　　要：针对现有相似材料模型实验位移观测方法存在的局限性,提出采用普通数码相机进行模型测点的位移观测方法.在每个测点周围布设独立的控制格网并进行单点数码摄影,在常规数字成图软件中对数码照片进行图像处理,获取控制格网角点和测点标志的图像坐标,通过坐标变换和影像畸变纠正,解算出各测点在独立控制格网中的实际坐标.In accordance with shortages of current displacement measurement method, the ordinary digital photography was applied to similar material model test. On the model test, independent control net was set up around every measurement point, and image coordinates of these digital photos, taken from single measurement point were obtained on current image processing system, then actual coordinates of measurement point on independent control net were calculated according to coordinate conversion and distortion rectification model of image.

关 键 词：相似材料模型实验 数码摄影 位移测定 图像处理 

分 类 号：P234.1[天文地球—摄影测量与遥感] TD325[天文地球—测绘科学与技术]