English
◆ Annual Review 2001

Computer Arts Laboratory


Carl W. Vilbrandt
Associate Professor

Benjamin Britton
Visit Associate Professor

Education:

Computer arts are developed through exploration, observation, engineering and invention that invokes emotion and thought, and augments the physical and spiritual nature of things. To be a master of computer arts, one must be a master of his or her computer hardware and software tools, and that is most effectively done by modification or creation of hardware and software tools. The Computer Arts Lab develops the students' computer skills by using the latest developments in computer science, whenever possible, in collaboration with other University of Aizu Computer Labs. Computer Arts Lab students are challenged to be a technical team; they are asked to select or design new computer applications and take responsibility for the incremental implementation of their selection or design.

This year the Computer Arts Lab is pleased to be joined by Visiting Associate Professor Benjamin Britton from the University of Cincinnati, USA. Professor Britton is an artist working with electronic art tools -mostrecentlymutual reality. Benhas an M.F.A. from the San Francisco Art Institute. He has exhibited his electronic art works nationally and internationally and has received numerous awards for his gallery installations. His recent "Moon Project" (at http://www.moon.uc.edu) is a Web-based, virtual realitywork that allows participants to play the roles of Neil Armstrong or fellow astronaut Edwin "Buzz" Aldrin during their historic capsule landingor duringtheir first moonwalk. Similarly, a previous virtual reality project recreated France's famous Cave of Lascaux. Currently, Professor Britton is working in collaboration with the Computer Arts Lab to create a virtual Sazaedo. This ancient Buddhist temple is located at the foot of Imoriyama in Aizu-Wakamatsu, Japan. A 3D model is being optimized for realtime renderingand texture mapping. Script development is in-progress.

In conjunction with the Aizu Digital Valley Promotion Association of Shiokawa, the Computer Arts Lab hosted two graduate interns from the ENSEIRB of the University of Bordeaux inFrance. Baptiste Malguyand Pierre-Alain Fayolle began work on parallel polygonization of function represented 3Dobjects and application or Green's function to a cloud of data points from laser scans of cultural artifacts.

Current Projects:

  • The Aizu History Project is using standard opensource gaming technology to produce amultimedia virtual environment in which the viewer may visually reference and rapidly manipulate high resolution cultural heritage data on the Internet. 3D architectural models and animations of the Golden Hall of Enichiji, Sazaedou and some parts of Kogamachidori have been created. A collaborative three year agreement with the Fukushima Museum has been initiated for the virtual archiving of "haniwa".
  • The Fukushima Libre Software Initiative hosted by the Aizu Digital Valley Promotion Association in collaboration with the University of Aizu and the University of Bordeaux, France, promotes development of GNU/Linux OS and applications for business and education.
  • The Fukushima Libre Hardware Initiative hosted by the Aizu Digital Valley Promotion Association promotes research in environmentally and economically friendly computer hardware design scheme sunder the GGPL agreement with industrial partners NEC, AVIO, and Hartec. (http://www.gnubook.org)
  • The Synthetic CAD Project is developing a hybrid synthetic CAD system based on multiple representations (CSG, B-rep, F-rep, and voxels).
    (http://www.hyperfun.org)
  • Work in FRep and expansion of the HyperFun language for client server applications is continuing.
  • The Digital and Academic Liberty of Information (DALI) workshop collaboration on open source and free software issues is continuing.
Referred Journal Papers
[vilb-001:2001]C. Vilbrandt. Introduction to Extending the Freedoms of Free and Open Information. Journal of Shanghai University (English Edition), 5, Suppl.:181-188, 2001.
A brief history and overview of the impact of current information technology and its decentralized nature are presented. The paper discusses the current ideology to handle this new paradigm and extensions to that ideology with respect specifically to hardware design and large computational structures and generally to the future of computer technology in a socially conscious manner.
[vilb-002:2001]G. Pasko, A. Pasko, C. Vilbrandt, and T. Ikedo. Shape Modeling Issues of Digital Preservation of Japanese Lacquer Ware and Temples. Computer Graphics and Geometry - Internet Journal, 3(3), 2001.
Issues of digital preservation of shapes and internal structures of culturally valuable objects are discussed. An overview of existing approaches to digital shape preservation as well as corresponding problems is given. Our approach is based on using constructive modeling, which reffects the logical structure of the shapes. We examine and select those mathematical representations of shapes that fit the purposes of long-term digital preservation. Constructive Solid Geometry (CSG) is applied in modeling a Japanese temple Sazaedo with a unique internal structure. Traditional Japanese lacquer ware called shikki is modeled using the function representation (FRep). We describe the Virtual Shikki project aimed to present the virtual shapes and textures of lacquer ware on the Web.
Referred Proceeding Papers
[benb-001:2001]Benjamin Britton. The Boundaries of Scientific Culturein Virtual Heritage. In H. Thwaites and D. Williams (Eds.), editors, 7th International Conference on Virtual Systems and Multimedia (VSMM 2001), page 0021, Berkeley, USA, Oct. 2001. International Society on Virtual Systems and MultiMedia, IEEE Computer Society.
The author traces forms of three cultural heritage projects made in virtual reality, and, in the process, illuminates some characteristics of this new discipline to describe aspects of and issues raised by the creative synthesis of Science and Art, a natural resurgence arising from humankind's continuing need to understand itself and to care for itself and the universe it inhabits.
[vilb-003:2001]G.Pasko, A.Pasko, C. Vilbrandt, andT. Ikedo. Virtual Shikkiand Sazaedo: Shape Modeling in Digital Preservation of Japanese Lacquer Ware and Temples. In R. Durikovic and S. Czanner (Eds.), editors, Spring Conference on Computer Graphics SCCG 2001, pages 147{154, Budmerice, Slovakia, April 2001. IEEE Computer Society, IEEE Computer Society.
Issues of digital preservation of shapes and internal structures of culturally valuable objects are discussed. An overview of existing approaches to digital shape preservation as well as corresponding problems is given. Our approach is based on using constructive modeling, which re??ects the logical structure of the shapes. We examine and select those mathematical representations of shapes that fit the purposes of long-term digital preservation. Constructive Solid Geometry(CSG) is applied in modeling a Japanese temple Sazaedo with a unique internal structure. Traditional Japanese lacquer ware called shikki is modeled using function representation (FRep). We describe the Virtual Shikki project aimed to present the virtual shapes and textures of lacquer ware on the Web.
[vilb-004:2001]C. Vilbrandt, A. Pasko, G. Pasko, J.R. Goodwin, and J.M. Goodwin. Digital Preservation of Cultural Heritage through Constructive Modeling. InD.BearmanandF. Garzotto (Eds.), editors, International Cultural Heritage Informatics Meeting ichim01, pages Vol. 1, 183{200, Milan, Italy, Sept. 2001. European Commission IST (Information Society Technologies) Programme, Archives & Museum Informatics.
The issues of digital preservation of shapes and internal structures of historical and cultural objects are discussed, Anoverview of existing approaches to computer modeling of shapes as well as corresponding problems is considered. We propose a digital preservationparadigmquite di??erent from the currently popular "scan and mesh" approach yielding visible surface models. Our approach is based on using constructive modeling that re??ects the logical structure of the shapes. Constructive Solid Geometry (CSG) and function representation (FRep) are examined and practically applied as the mathematical representations which ??t the purpose of long term digital preservation. Examples of CSG based reconstruction of historical temples and FRep based modeling of traditional lacquer ware are given.
[vilb-005:2001]C. Vilbrandt, G. Pasko, A. Pasko, J.M. Goodwin, and J.R. Goodwin. Dancing Buddhas: New Graphical Tools for Digital Cultural Heritage. In H.Thwaites andD. Williams (Eds.), editors, 7th International Conference on Virtual Systems and Multimedia (VSMM 2001), pages 345-353, Berkeley, USA, Oct. 2001. International Society on Virtual Systems and MultiMedia, IEEE Computer Society.
We will demonstrate and discuss the use of a mathematically based tool, Function Representation (FRep), for modeling complex 3D objects such as sculpture, and show the new capabilities that it provides for dynamically modifiable viewing and presentation. FRep uniquely allows smooth metamorphosis between structurally dissimilar objects, even with di??erent mathematical connectivity. We intend to use FRep's modeling and metamorphosis capabilities for themultimedia presentation of a transformation of the kanji froma twelfth-century Japanese text of the Lotus sutra (one found in the Aizu region) into moving 3D buddha-images, accompanied by synchronous sounds of chanting. In our presentation, we will demonstrate some of the basic steps showing the concept and approach, but with a limited sample, and without sound. With our approach, an object at any point in its metamorphosis will be a verifiably closed, mathematically accurate representation of the object at that stage of the process. We achieve this by using HyperFun, a high level geometric modeling language for modeling based on FRep. Because of their mathematical basis, high level FRep and HyperFun data structures can survive centuries of hardware and software iterations, and form a useful tool for cultural preservation as well. We intend to make our methods, developed by an international multidisciplinary teamandcurrently being re??ned andexpandedfor use in this field, freely available to the academic community, and welcome participation and suggestions.
[vilb-006:2001]Musdi Bin Haji Shanat, P. Fayolle, B. Schmitt, and T. Vilbrandt. Haniwa: A Case Study of Digital Visualization of Virtual Heritage Properties of Burial Mound Figurines. In E. Prakash and T. Chan (Eds.), editors, International Workshop on 3D Digitization (3DD-2002), Singapore, February 2002. Nanyang Technological University.
In this research,wewant to improvemethods of constructing a relatively accurate digital and multidimensional model of Japanese haniwa from 360 degree scan data of the ancient artifact via non-contact 3D laser scanning. It is our goal that the research will help the archaeologist and geologist to generate ar-tifacts in proper3D representation and concurrently to provide anopportunity for attractive, accurate, informative and interactive 3D visualization, animation and VRML on CDROM or over the WWW.In our methodology, we use a discrete cloud of points scattered on a surface to construct the function representation (FRep) of a 3D-Volume. In our case, the points have been obtained with a laser scanner. The algorithm used to reconstruct the FRep is based on Green's function and an algorithm for reconstructing volume with radial basis functions. We give a short and practical description of the algorithm; then we present our implementation of the algorithm as a library function for the HyperFun modeling language.
Grants
[vilb-007:2001]Carl Vilbrandt. Shape Modeling Education and Entertainment : Fukushima Foundation for the Advancement of Science and Education, 2001-2002.
Academic Activities
[vilb-008:2001]Carl Vilbrandt, March 2002. Program Chair, University of Aizu International Academic Exchange Program: 2nd International Workshop on Digital and Academic Liberty of Information DALI 2001.
[vilb-009:2001]Carl Vilbrandt, April 2001. Referee, IEEE/SCCG 2001, IEEE
[vilb-010:2001]Carl Vilbrandt, May 2001. Referee, IEEE/SMI 2001, IEEE
[vilb-011:2001]Carl Vilbrandt, July 2001. Chairperson for ProgramTopic, Law, Economy, Politic and libre software, Libre Software Meeting 2001, LSM
Ph.D and Other Thesis
[vilb-012:2001]Yasunori Katakura. Graduation Thesis: Modeling Sweeping Surface for HyperFun, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-013:2001]Rintaro Kuroda. Graduation Thesis: Flower, Music and Human Emotion, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-014:2001]Kazuhiro Mochizuki. Graduation Thesis: HyperFun with JAVA, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-015:2001]Hisao Mihara. Graduation Thesis: Realtime Viewer for 3DModels on Browsers Using JAVA, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-016:2001]Asami Horiuchi. Graduation Thesis: Modeling Buddha Image in HyperFun, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-017:2001]Chisato Takahashi. Graduation Thesis: 3D Reconstruction of Tanomo Saigo's Head, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-018:2001]Hajime Matsui. Graduation Thesis: Simulation of Cloth with Collision Detection, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-019:2001]Kenichi Maezu. Graduation Thesis: F-rep Polygonizer by Common LISP, University of Aizu, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-020:2001]C. Vilbrandt. SCCP: Aizu History Project - Game Environments, University of Aizu, 2001.
Using ray tracing animations in POVRay and real time game programming in Quake II to present history from the Aizu region.
[vilb-021:2001]C. Vilbrandt. SCCP: 3D Objects and Animation with HyperFun, University of Aizu, 2001.
Others
[vilb-022:2001]Yuiichiro Goto. Master Thesis: Interactive Modeling and Visualization of F-rep Solids with an Extendable user Interface, 2001.
Thesis Advisor: Carl Vilbrandt.
[vilb-023:2001]C. Vilbrandt. Public Lecture Series: "yperFun" of DIGI-DOU., June 2001.
[vilb-024:2001]C. Vilbrandt. UAizu Computer Science Summer Camp - August 2001: HyperFun Shape Modeling., August 2001.
[vilb-025:2001]C. Vilbrandt. Official Collaboration with the Fukushima Prefectural Museum: Scanning of Cultural Heritage Objects for Digital Preservation., 2001.
[vilb-026:2001]C. Vilbrandt. Aizu Digital Valley Promotion Association (ADVPA) and the ENSEIRB, University of Bordeaux, France: 6 month internship for 2 computer science engineering students to develop open source free educational software., Summer/Fall 2001.