Creation of a 3D-model wall front using a videotacheometer Topcon GPT-7003i and software produced by Topcon

摘要

This diploma thesis contains a practical review of the creation of a 3D-model wall front, from preparing data to its realization. The main feature of this task is the use of a videotacheometer Topcon GPT-7003i and software produced by Topcon (TopSURV, Topcon Link, PI-Calib, PI- 3000). The main purpose was to collect all necessary data in order to create a 3D model, exclusively using the videotacheometer GPT-7003i. It came to the acknowledgement that the sensor of the instrument does not assure enough quality images, so Nikon D70 camera was used instead. The measurements with this instrument are made in the TopSURV software program, which is loaded on the videotacheometer’s internal disk. This program provides coordinates and measurements, which can be exported to the Topcon Link software on the personal computer. Topcon Link allows corrections and adjustments and exports those measurements to other formats. Pi-Calib is a simple software for implementing camera calibration - interior orientation of the camera. The creation of the 3D model is carried out in the PI-3000 software. After importing the data (control points, check points and images) in this software, the first task is to conduct the exterior orientation of the stereopairs. Then the depth of the points needs to be measured and the borders on the places where the depth of the model has changed have to be determined with polygons. The next task is to create a TIN and texture of the model. The final product is a 3D model of the wall front, the evaluation of the practicability of the software used and the instructions for using this software. VII