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Computers & Graphics 27 (2003) 163–167
Guest editor’s introduction
It is our great pleasure to present this special issue of
Computers & Graphics on Virtual Reality (VR) and its
Application. For this issue, the papers are selected from
the contributions to the Third International Conference
on VR and its Application in Industry (VRAI’2002).
VRAI’2002 is the Third International Conference on
VR held in China. The first one (International Work-
shop on VR and Visualization in Scientific Computing)
was held in 1995 in Hangzhou, China. Selected papers
from this workshop were published as a Special Issue of
Computers & Graphics Vol. 20, No. 2, 1996 (Guest
Editor: Dr. Martin Goebel and Prof. Jiaoying Shi). The
second workshop (International Workshop on VR and
Application) was held in 1999. The plenary talks from
this workshop were published by The International
Journal of Virtual Reality, Vol. 4, No. 3, 2000 (CD-
ROM edition, Content Editor: Prof. Zhigeng Pan).
In 2002, the conference focuses on the theme ‘‘VR and
its Industrial Application’’. This conference was orga-
nized by the China Society of Image and Graphics, and
co-organized by the VR Committee of the China Society
of Image and Graphics; the State Key Lab of CAD &
CG at Zhejiang University, China; and the Hangzhou
Institute of Electronics Engineering, China. It was co-
sponsored by EUROGRAHICS, the VR Society in
Japan (VRSJ), Korean Association of VR (KAVR),
IEEE-CS Beijing, Natural Science Foundation of China
(NSFC), VR and Visualization Committee of China
Computer Federation (CCF), and Machine Perception
and VR Committee of China Association of Artificial
Intelligence (CAAI). Topics of this conference include
VR Algorithms, Real-time/Time-critical Rendering,
Multi-resolution Modeling, Image-Based Modeling
and Rendering, Distributed VR, Intelligent Virtual
Environment, Human Computer Interface, Augmented
Reality, VR Applications (Architecture, Manufacture,
Aerospace, Automotive, Game/Entertainment, Visuali-
zation, Education, etc.
For this Special Issue on VR and its applications, we
selected seven contributions: four related to VR
technology, and three related to VR applications. And
the authors are from Germany, USA, Japan, Korea,
Singapore, China, Taiwan (China), etc.
The first contribution by Ke Deng et al. is on light
field, which is a well-known image-based rendering
technology. The authors propose a correction and
rectification framework that uses only four images.
The framework involves un-distortion, feature point
detection, homography computation to correct the
orientation of the camera, and positional error correc-
tion. The new method both corrects the positional error
of the light field and rectifies the light field.
The followed two papers are on real-time rendering
techniques in VR systems but with different approaches.
Yigang Wang et al. present a general method for
selectively refining or coarsening progressive meshes.
The method works for arbitrary meshes, deals with non-
manifolds, and allows the change of manifold and genus
properties of the mesh. A locally re-stripping method is
also proposed to dynamically generate the strips during
selective refinements, which efficiently forms strips for
meshes coarsening or refining process. Chih-Chun Chen
et al. introduce a hybrid render scheme that explores the
locality of the visibility at the cost of extra storage and
prefetching, and makes a tradeoff between image quality
and rendering efficiency by using textured LOD meshes.
M. Osama ALHALABI et al. study the network
latency issue in cooperative shared haptic virtual
environment by conducting a subjective evaluation to
the force feedback and the task performance in a tele-
handshake cooperative shared haptic system for differ-
ent delay setting. Four subjective measures to evaluate
the quality of haptic have been proposed, and a detailed
description of the haptic sensation for different time
delays is also described.
The fifth paper is on VR application in medical
training, which is the research result between several
universities (Nanyang Technological University in Sin-
gapore, Johns Hopkins University in USA, Zhejiang
University in China, etc.). This paper describes a
computerized simulation system for less invasive vas-
cular interventions using VR-based technology. A
virtual human patient is constructed on top of the
visible human data incorporating in various vascular
disease cases, and the human vascular network is
modeled for the use of catheterization simulation. A
haptic interface is integrated with the computer simula-
tion system to provide tactile sensations to the user
during the simulated catheterization procedures.
The last two papers are application of VR to game/
entertainments. ChangHun Park et al. discuss the design
and implementation techniques of Kyongju VR Theatre,
0097-8493/03/$ - see front matter r 2003 Elsevier Science Ltd. All rights reserved.
doi:10.1016/S0097-8493(02)00273-X
the aim of which is to construct a versatile public
demonstration place for VR technology as new medium
for interactive storytelling of diverse kinds of artistic
expression and virtual heritage to public. The system is
based on a distributed micro-kernel architecture con-
sisting of multiple hosts on the network to integrate 3D
virtual space with many different types of applications
and interface devices on the network. In the last paper,
Zhigeng Pan et al. describe a virtual bowling game
machine called EasyBowling Machine, which is designed
and implemented based on techniques such as VR,
animation, and image processing. The most obvious
advantage of such bowling game machine over other
existing bowling games is that the system integrates
body exercise into game playing.
On preparing this special issue, we have got help
from a lot of experts in VR area. Thanks go to the
authors who make contribution to this special issue,
and the reviewers who made constructive suggestion
on revising the papers. Special thanks should be given
to Prof. Jos!e Encarna9c*ao, the editor-in-chief of
Computers & Graphics, for his kind offer to us on
editing this Special Issue after we talked about it in
Kunming in August 2001. His strong support to VRAI
conference will make the conference big success in the
future.
Zhigeng Pan
Jiaoying Shi
Guest Editors
Editorial / Computers & Graphics 27 (2003) 163–167164
Zhigeng Pan
CURRICULUM VITAE
Zhigeng Pan is the Director of VR and Multimedia Division, State Key Lab of CAD & CG, Zhejiang University.
Since 1993, he has been working at the State Key Lab of CAD & CG on a number of academic and industrial projects
related with distributed graphics, virtual reality, and multimedia. He has published more than 70 papers on
international journals, national journals and international conferences. He is the author or co-author of two books
related to computer graphics. He acted as one of the Guest Editors of a Special Issue of Computers & Graphics
(‘‘Computer Graphics in China’’). He acted as the content editor, and edited the special issue ‘‘Virtual Reality in
China’’ in 1999 for International Journal of Virtual Reality. Dr. Pan is a member of SIGGRAPH, a senior member
of the China Image and Graphics Association. He is on the editorial board of The International Journal of Virtual
Reality, International Journal of Image and Graphics, International Journal of CAD/CAM, Journal of Image and
Graphics, etc.
Jiaoying Shi
CURRICULUM VITAE
Jiaoying Shi is a professor of the Department of Computer Science and Engineering at Zhejiang University, China.
He is the Director of Academic Committee of State Key Lab of CAD & CG, the Deputy Chairman of China Image and
Graphics Association, the Deputy Chairman of China CAD and Graphics Society under China Computer Federation.
His research interests include distributed graphics, visualization, virtual reality, and multimedia. He is a member of
SIGGRAPH Education Committee, and on the Editorial Board of international journal Computers & Graphics,
journal of Image and Graphics, journal of CAD/CG, etc. He is the program chair of VRAI’2002, conference chair for
ACM VRST’2002, and the IPC members of some international conference related to computer graphics, virtual reality,
etc. Since 1990 his works are concentrated in visualization and virtual environment. He has published more than 100
papers and three books, and edited several special issues for Computers & Graphics.
Editorial / Computers & Graphics 27 (2003) 163–167 165
(1) Correction and Rectification of Light Fields
Ke Denga, Lifeng Wangb, Zhouchen Linb, Tao Fengb, Zhidong Denga
aTsinghua University, bMicrosoft Research Asia
Mail address:
Ke Deng
IG group, Microsoft Research Asia,
3/F Sigma building, Zhichun Road,
Haidian District, Beijing 100080, People’s Republic of China
Tel.: 133-010-35208
E-mail: [email protected]
(2) Selective Refinement of Progressive Meshes Using Vertex Hierarchies
Yigang Wanga,b, Bernd Fr .ohlichc, Martin G .obela
aFraunhofer-Institut f .ur Medienkommunication, GermanybInstitute of VR and Multimeida, HZIEE, Hangzhou, 310037, China
cBauhaus-Universit.at Weimar, Germany
Contact author: Dr. Yigang Wang
Address: Computer School , Hangzhou Institute of Electronics Engineering,
Hangzhou 310037, People’s Republic of China
Tel.: +86(0)571-88809109
E-mail: [email protected]
(3) Rendering Complex Scenes Using Spatial
Subdivision and Textured LOD Meshes
Chih-Chun Chen, Jung-Hong Chuang, Bo-Yin Lee, Wei-Wen Feng, Ting Chiou
Department of Computer Science and Information Engineering,
National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan 30050, ROC.
Corresponding author:
Jung-Hong Chuang
Address:
Department of Computer Science and Information Engineering,
National Chiao Tung University,
1001 Ta Hsueh Road, Hsinchu, Taiwan 30050, ROC.
(4) An Experimental Study on the Effects of Network Delay in
Cooperative Shared Haptic Virtual Environment
M. Osama ALHALABIa, Susumu HORIGUCHIb
aGraduate School of Knowledge Science, bGraduate School of Information Science,
Japan Advanced Institute of Science and Technology,
Asahi-Dai 1-1, Tatsunokuchi, Ishikawa 923-1292, Japan
Corresponding author: M. Osama ALHALABI
Graduate School of Knowledge Science, Japan Advanced Institute of Science and Technology,
Asahi-Dai 1-1, Tatsunokuchi, Ishikawa, 923-1292 Japan
Tel./fax:+81-761-51-1814
E-mail: [email protected]
(5) VR Simulated Training for Less Invasive Vascular Intervention
Yiyu Caia, Cheekong Chuib, Xiuzi Yec, Yaoping Wangb, James H Andersond
aNanyang Technological University, 50 Nanyang Avenue, SingaporebBio-medical Imaging Lab, Kent Ridge Digital Labs, Republic of Singapore
cState Key Lab of CAD and Computer Graphics, Zhejiang University, People’s Republic of ChinadSchool of Medicine, Johns Hopkins University, Baltimore, MD, USA
Editorial / Computers & Graphics 27 (2003) 163–167166
Corresponding author: Yiyu Cai
School of Mechanical and Production Engineering, Nanyang Technological University,
50 Nanyang Avenue, Singapore
Tel.: 65-67905777
Fax: 65-67911859
E-mail: [email protected]
(6) NAVER: Design and Implementation of VR Framework for Gyeongju VR Theatre
ChangHoon Park, Heedong Ko, Taiyun Kim
Imaging Media Research Center, Korea Institute of Science and Technology,
39-1 Hawolgok-dong, Sungbuk-gu, Seoul 136-791, South Korea
Corresponding author: ChangHoon Park
Imaging Media Research Center, Korea Institute of Science and Technology,
39-1 Hawolgok-dong, Sungbuk-gu, Seoul 136-791, South Korea
Fax: +82-2-959-0560
E-mail: [email protected]
(7) EasyBowling: A Small Bowling Machine Based on Virtual Simulation
Zhigeng Pana,b, Weiwei Xua, Jin Huanga, Mingmin Zhanga, Jiaoying Shia
aState Key Lab of CAD & CG, Zhejiang University, Hangzhou 310027, People’s Republic of ChinabInstitute of Virtual Reality and Multimedia, HZIEE, Hangzhou 310027, People’s Republic of China
Contact person: Prof. Zhigeng Pan
State Key Lab of CAD & CG, Zhejiang University,
Hangzhou 310027, People’s Republic of China
Tel.: 86-571-87951045
Fax: 86-571-87951780
E-mail: [email protected]
Editorial / Computers & Graphics 27 (2003) 163–167 167
