High-Resolution Close-Range Photogrammetric Solution for Dams

today’s rapid development of oblique photogrammetry technology, the optical performance of lenses often draws the most attention. However, the true core that supports precise modeling—synchronization control technology—often exists as a “hidden parameter.” …

oblique aerial photogrammetry, surveyors employ various measures to improve model accuracy. Among these, the layout of ground control points (GCPs) is one of the most fundamental methods. The selection of GCP locations and the accuracy of their coordinates …

underground pipelines are often referred to as the “lifelines of a city.” Their efficient management is critical to ensuring smooth urban operations and improving living environments. In the eastern part of Jinan’s main urban area, a 3D underground pipel…

with traditional surveying and mapping, drone aerial surveying features short operation cycles, low costs, and wide applicability, serving as an effective supplement to the traditional surveying industry. However, in certain areas with large terrain h…

the previous two issues, we introduced two basic parameters of oblique cameras: focal length and field of view, as well as their relationship with modeling effects. The high-end Pros series oblique photography cameras can achieve better modeling results. So…