Modeling And Application Of Digital Cultural Relics Based On Reverse Engineering Technology

Development and application of computer technology accelerate theresearch progress of cultural relic digitization, and some success was achieved.Cultural relics’ surface texture is often more complex, and it has a certain degreeof difficulty to accurate obtain its surface model. How to quickly and accuratelyobtain three-dimensional model has become the key to the process of culturalrelic digitization. Measures must be taken in order to effectively protect thecultural relics and maximize its value, and achieve virtual cultural relic’s tour tolearn the history and culture while reducing the inevitable destruction. In thispaper, modeling methods of cultural relic digitization based on reverseengineering technology were studied and the access to displaying digital culturalrelics in the form of a virtual museum was got. The contents of this thesis mainlyinclude:Firstly, a series of data acquisition methods were studied, includingdestructive and non-destructive measurement method, contact and non-contactmeasurement method. Two commonly used laser scanners Vivid910-based onlaser triangulation measurement method and3dss laser scanners-based onstructure light measurement method were studied. The point cloud data of thehorse and the people figurines were gained by Vivid910and then they gotpreliminary processing by the scanner’s driver software. The point cloud dataprocessing methods were investigated, including alignment of points, removingnoises, streamline and filling holes. Reverse engineering software was used forfurther processing of the point cloud. In the process, the detailed results wereappeared before and after processing and more knowledge on point processing was learned. The ideal point clouds were gained.Secondly, the basic theory and technology of curve and surface modelingwere researched. The mathematical meaning each letter of Nurbs was revealed.The characteristics of curves and surfaces and how to generate them were brieflyexpressed. Point data was calculated based on the above theory. After that,curves and surfaces were generated. Through the process point cloud phase,polygon phase and surface phase, three-dimensional models of cultural relicswere created by reverse engineering software Geomagic.Finally, a virtual museum model was established on the Internet. Themodeling result was exported into positive modeling software. Subsequently,environmental scene was designed in positive modeling software3ds max. Inthis process reverse engineering techniques and positive design techniquesachieved unify. A virtual museum model was established. The basic theory andmethod of texture mapping was explored, including programming method andsoftware-based method. Lighting, material parameters and texture mapping weredesigned through the suitable texture mapping software. The virtual museummodel was converted to a three-dimensional digital museum scene. The theory ofinteraction design technology and virtual reality technology were studied. Avirtual tour of the scene was built by using interactive design software accordingto the technology. The elements in web design were discussed and a preliminarydigital museum web site was designed with the proper software. Virtual roamingscenarios was defined that will be created as a new network design element. Thescenarios was arranged to the website and published to the network. Ultimately, asimple virtual tour of digitized museum was created and an accessed was got toit on the network.