普通数码相机近景摄影测量在工程变形监测中的应用

Ordinary digital camera close shot photogrammetry in the engineering application of deformation monitoring

普通数码相机由于携带轻便、价格低廉、像素几何位置精度高、影像可直接输入计算机进行处理等优点备受人们青睐。随着数字摄影测量技术的发展，数码相机分辨率的不断提高，人们开始考虑能否将普通数码相机应用于工程实践。以普通数码相机作为影像信息的获取手段，影像获取及其量测方法、数据处理解算方法、解算精度等问题进行了简要说明，并以某隧道断面的拱顶沉降监测为实例进行了探索性研究。

Ordinary digital camera due to portability, low cost, high precision pixel geometry, image can be directly entered into the computer for processing, etc. attracted people of all ages. With the increasing development of digital photogrammetric techniques, digital camera resolution, people began to consider the possibility of ordinary digital camera used in engineering practice. In this paper, as an ordinary digital camera image information access tools, image acquisition and measurement methods, data calculation method of the understanding, problem solver accuracy with a brief description, and a tunnel vault subsidence monitoring section for examples of exploratory research.