The monitoring of the dynamic change of multiple points of interest whether in structures or topography, or indeed any suitable objects in motion, is difficult or costly with traditional non-contact surveying or direct measurement sensors. This article presented an effective and commercially viable technique which could be deployed by surveying practitioners without specialist photogrammetric experience. The solution is scalable from the multi-sensor deployment for rapid change, close-range, high accuracy monitoring described in this paper to single sensor deployments for slow change, long-range, lower accuracy applications such as slip monitoring.
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