Generation of 3D virtual model of the karst cave from terrestrial laser scaner data

摘要

The present work presents principle of generating the 3D virtual model of the karst cave from data acquisition to the final model. Long range terrestrial laser scaner Riegl LMS-Z420i and the enclosed software RiSCAN PRO, which is used for scaner controlling and data capture monitoring are presented as well. The method of scanning and tranforming data from multiple scans into one well-defined project coordinate system is described. The work also presents fundamentals of 3D modelling and visualisation, basic principles of internet and it's features, and shortly describes VRML. The whole data processing and modelling was accomplished in RiSCAN PRO. The animated model suitable for presentations was generated. In addition to animated model, a generalised virtual model in VRML format was prepared.