Surveying precision comparison between UAV,s surveying without ground control points, RTK, PPK compared to conventional GPS in forestry plans

This paper proposes the use of Virtual Reality (VR) as the enabling tool for delivering and learning construction layout and surveying. VR is used to provide an interactive learning experience through real-time computer generated imagery (CGI). The students learn and apply the theoretical part of the class through the interaction with the virtual surveying equipment in a virtual environment (VE...

Reliable Space–Time Prisms Under Travel Time Uncertainty Bi Yu Chen a , Qingquan Li b , Donggen Wang c , Shih-Lung Shaw d a , William H.K. Lam e , Hui Yuan f & Zhixiang Fang a a State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing , Wuhan University , Wuhan , China b State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing , Wu...

The goal of the reported project is to test and evaluate 3D surveying and modelling methods to document the remaining ancient byzantine city walls of the archaeological site of Aquileia in Friuli Venezia Giulia, Italy. The objectives are threefold: (1) to use 3D data to create maps, façades and sections that provide information useful for archaeological purposes such as the investigation of arc...

This paper describes metaheuristic algorithm based on simulated annealing method,which is a nature-inspired method, to analyze and improve the efficiency of the design of Global Positioning System (GPS) surveying networks. Within the context of satellite surveying, a positioning network can be defined as a set of points which are coordinated by placing receivers on these point to determine sess...

Railway track irregularity surveying is important for the construction and the maintenance of railway lines. With the development of inertial devices, systems based on Inertial Navigation System (INS) have become feasible and popular approaches in track surveying applications. In order to overcome the requirement of high precision control points, this paper proposes a railway track irregularity...

In this paper, the technological process of fixed ground-based 3D laser scanning technology in practical production engineering survey is introduced, and application methods topographic map surveying mapping, earthwork calculation, road surveying, modeling other aspects are systematically discussed. Meanwhile, paper summarizes advantages disadvantages compared with traditional mapping methods, ...