The Journal of the Society for Art and Science Cover sheet for paper submissions * Paper Types (choose one) - Original Full Paper * Paper Field (choose one) 2) Science/Technology * Categories (choose one or more) a-4) Computer Graphics (Visualization) * Special Issue Correspondence (choose one) - Submission for a Special Issue (Name: NICOGRAPH 2017 Special Issue) * Title Visualization of Flake Knapping Sequence with Analyzing Assembled Chipped Stone Tools * Author(s) 1) Xi Yang (Student Member) 1) Kouichi Konno (Regular Member) 2) Fumito Chiba (Non-Member) 2) Shin Yokoyama (Non-Member) ** Please include one of (Regular Member / Student Member / Non Member) as appropriate for each author name. ** Note that at least one of the authors should be a regular member (not a student member) before the time of publication. If there are no regular members among the authors, the paper is acceptable on the premise that one of the authors will complete the member application procedure. * Author Affiliation(s) 1) Graduate School of Information Science and Technology, The University of Tokyo 2) Graduate School of Engineering, Iwate University 3) LANG CO., LTD. * Author E-mail Address(es) yangxi@lk.cis.iwate-u.ac.jp * Name, Address, Affiliation, Telephone number, Fax number, and E-mail Address of the Contact Person Xi Yang, The University of Tokyo, 090-6626-0631, , yangxi@lk.cis.iwate-u.ac.jp * Abstract (approx. 100 words) For studying stone tools, repeating assembly and separation of stone tools is an inevitable process. The instructions of this process, however, are ambiguous when traditional 2D illustrations are used. The 3D exploded view is an effective way for instructing the assembly, and it has been widely used in many fields, while it has seldom been used in archaeology. We apply this powerful presentation technique to stone tool models, and study methods of generating exploded graphs and assembly sequences with point clouds of stone tools by computer graphics algorithms. Moreover, lithic knapping methods and relic excavation reports are analyzed to evaluate the difference of flake knapping sequences between the contents of report and automatic generation by using an algorithm. In addition to presentation of principles for restoring stone tools, we design the functions and algorithms of our system based on archaeological rules. The experiment results of stone tool assembly show effectiveness and practicability of the proposed method. The user evaluation indicates that 3D visualization technology can assist in efficient research of flake knapping sequence instruction for chipped stone tools. * Keywords (around five) Stone tools, Flake knapping sequence, Visualization instruction, Exploded diagram. ** Authors should submit their manuscripts (PDF or WORD format) to the secretariat of The Society of Art and Science by e-mail, with a cover sheet (in plain text). The secretariat will inform the author of the receipt number after receiving the manuscript. ** No manuscripts bigger than 10 MB will be accepted. If the file size exceeds 10 MB, please upload it to an author's website.