The Journal of the Society for Art and Science Cover sheet for paper submissions ¡ Paper Types (choose one) EOriginal Full Paper ¡ Paper Fieldichoose onej 2) Science/Technology ¡ Categoriesichoose one or morej a-4) Computer Graphics (Visualization) ¡ Special Issue Correspondence (choose onej ESubmission for a Special Issue (Name: NICOGRAPH 2015 ) ¡ Title Unfolding a Point Cloud on Relic's Surface for Surface Pattern Visualization ¡ Author(s) Zepeng Wang(Student Member) Katsutsugu Matsuyama (Regular Member) Kouichi Konno(Regular Member) ¡ Author Affiliation(s) Graduate School of Engineering, Iwate University ¡ Author E-mail Address(es) xiaoxie@lk.cis.iwate-u.ac.jp kmatsu@iwate-u.ac.jp konno@cis.iwate-u.ac.jp ¡ Name, Address, Affiliation, Telephone number, Fax number, and E-mail Address of the Contact Person Name: Zepeng Wang, Address: Ueda 4-3-5, Morioka, Iwate Tel: 019-621-6470 E-mailFxiaoxie@lk.cis.iwate-u.ac.jp ¡ Abstract (approx. 100 words) Developable surfaces are important for representing and understanding geometric features of 3D models. Some methods are required that surface pattern of a relic should be easily observed in archaeology area. This paper introduces a system to visualize the development of relic's surface pattern based on points, which does not require reconstruction of a mesh model and relies only on the information of points to develop the relic's surface. After a point cloud of a relic is segmented to separate sections, points of each section are projected to a developable surface, then the points of relic's surface are unfolded into an image plane. In our method, the number of segmentations can be controlled by an archaeologist in an interactive interface. The more segmentations a point cloud is divided into, the higher precision the image plane is shown in adjacent area. To observe the surface pattern easily, a developed plane can be interactively rotated on the prime meridian, which is extracted from a relic's surface. This approach can help archaeologists move a specific area of interest to the center of the relics. ¡ Keywords (around five) Point cloud, Development, Surface pattern, Visualization, Relics