数字实时立体摄影测量的关键技术研究

Research on the Key Technology of Real-time Digital Stereo Photogrammetry

摄影测量技术凭借其高精度、非接触、测量效率高等优势已在多个领域得到广泛的应用和发展。为解决传统摄影测量实时性差且不能完成动态测量的问题,近些年出现了一种新兴的测量手段,即数字实时摄影测量技术。本文为探索数字实时摄影测量的技术特点,借助双相机摄影测量系统分别对相机标定、影像改正、密集匹配、空间前方交会等关键技术开展研究。经实验设计,有效计算出某目标区域的三维模型。进一步证实了数字实时摄影测量可以对近景目标实现快速量测,具有一定的工程应用价值。

With the advantages of high accuracy,non-contact and high measurement efficiency,photogrammetry technology has been widely used and developed in many fields.In order to solve the problem of poor real-time and unable to complete dynamic measure-ment in traditional photogrammetry,a new measurement method,namely digital real-time photogrammetry,has emerged in recent years.In order to explore the technical characteristics of digital real-time photogrammetry,the key technologies such as camera cali-bration,image correction,dense matching and space forward intersection are studied with the help of dual camera photogrammetry sys-tem.Through the experimental design,the three-dimensional model of a target area is calculated effectively.It is further confirmed that the digital real-time photogrammetry can realize the fast measurement of close range targets,and has achieved certain engineering application value.