A METHOD OF 3D MEASUREMENT AND RECONSTRUCTION FOR CULTURAL RELICS IN MUSEUMS

Three-dimensional measurement and reconstruction during conservation and restoration of cultural relics have become an essential part of a modem museum regular work. Although many kinds of methods including laser scanning, computer vision and close-range photogrammetry have been put forward, but problems still exist, such as contradiction between cost and good result, time and fine effect. Aimed at these problems, this paper proposed a structure-light based method for 3D measurement and reconstruction of cultural relics in museums. Firstly, based on structure-light principle, digitalization hardware has been built and with its help, dense point cloud of cultural relics' surface can be easily acquired. To produce accurate 3D geometry model from point cloud data, multi processing algorithms have been developed and corresponding software has been implemented whose functions include blunder detection and removal, point cloud alignment and merge, 3D mesh construction and simplification. Finally, high-resolution images are captured and the alignment of these images and 3D geometry model is conducted and realistic, accurate 3D model is constructed. Based on such method, a complete system including hardware and software are built. Multi-kinds of cultural relics have been used to test this method and results prove its own feature such as high efficiency, high accuracy, easy operation and so on.

[1]  A. Habib,et al.  Photogrammetric and Lidar Data Registration Using Linear Features , 2005 .

[2]  Gérard G. Medioni,et al.  Object modelling by registration of multiple range images , 1992, Image Vis. Comput..

[3]  Victor S. Lempitsky,et al.  Seamless Mosaicing of Image-Based Texture Maps , 2007, 2007 IEEE Conference on Computer Vision and Pattern Recognition.

[4]  Paul J. Besl,et al.  A Method for Registration of 3-D Shapes , 1992, IEEE Trans. Pattern Anal. Mach. Intell..

[5]  Daniel Cohen-Or,et al.  Seamless Montage for Texturing Models , 2010, Comput. Graph. Forum.

[6]  Zhou Yang.  High Quality Texture Reconstruction for Small Objects Based on Structure Light Scanning System with Digital Camera , 2012 .

[7]  Jean-Philippe Pons,et al.  Seamless image-based texture atlases using multi-band blending , 2008, 2008 19th International Conference on Pattern Recognition.

[8]  Du Kan.  Research on the application of digital modeling technology in the conservation of cultural relics in museums , 2011 .

[9]  Marc Levoy,et al.  Geometrically stable sampling for the ICP algorithm , 2003, Fourth International Conference on 3-D Digital Imaging and Modeling, 2003. 3DIM 2003. Proceedings..