近景摄影测量相对控制算法研究与应用

Research and Application of Relative Control Algorithm of Close-range Photogrammetry

现结合近景摄影测量基本工作原理,通过实验场地数据验证,研究了一种近景摄影测量相对控制算法。该算法使用数码相机获取工程实验场地的数字影像,利用相对控制方式,可获得大量物方监测点间的位移变形情况,具有外业数据采集简单快捷、内业处理数字化等特点。实验证明具有较高的精度和可靠性。现总结了近景摄影测量工程应用新思路,并提出了近景摄影测量相对控制算法在土木工程变形监测的新技术,可广泛应用于桥梁、隧道、公路边坡等工程监控量测中。

Combined with the basic working principle of close-range photogrammetry,through the verification of experimental site data,a relative control algorithm of clos-range photogrammetry is studied.This algorithm uses a digital camera to obtain the digital image of engineering experiment site.The relative control method is used able to obtain a large number of displacement and deformation between the monitoring points,which has the characteristics of the simple and fast collection of the data outside and the digital processing inside.The experimental proof has the higher accuracy and reliability.A new thinking of close-rang photogrammetry in engineering application is summarized,and a new technique of close range photogrammetry relative control algorithm in civil engineering deformation monitoring is proposed,which can be widely applied in the engineering monitoring measurement of bridge,tunnel and highway slope.