3D Information System of Historical Site - Proposal and Realisation of a Functional Prototype

摘要

The development of methods for 3D data acquisition, together with progress in information technologies raises the question oj creating and using 3D models and 3D information systems (IS) of historical sites and buildings. This paper presents the current state of the "live Theatre" project. The theme of the project is the proposal and realisation of a 3D IS of the baroque theatre at Cesky Krumlov castle (UNESCO site). The project is divided into three main stages - creation of a 3D model, proposal of a conception for a 3D IS, and realisation of a functional prototype. 3D data was acquired by means ofphotogrammetric and surveying methods. An accurate 3D model (photo-realistic, te.xtured) was built up with MicroStation CAD system. The proposal of a conception of a 3D IS was the main outcome of the author's dissertation. The essential feature of the proposed conception is the creation of subsystems targeted on three spheres - management, research and presentation of the site. The functionality of each subsystem is connected with its related sphere; however, each subsystem uses the same database. The present stage of the project involves making a functional prototype (with sample data). During this stage we are working on several basic technological topics. At present we are concerned with 3D data, its formats, format conversions (e.g. DGN => VRML) and its connection to other types of data. After that, we will be seeking a convenient technical solution based on network technologies (Internet) an, an appropriate layout for the data (database). The project is being carried out in close co-operation with the administration of the castle and some other partners. This stage of the project will be completed in December 2005. A functional prototype and the information acquired by testing it will form the basis for the final proposal of a complex IS of a historical site. The final proposal and appropriate technology will be the outcome of the project. The realisation of a complex 3D IS will then follow. The results will be exploitable both for site management and for organisations working in the area of presenting historical sites and crenting multimedia shows.