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Displaying 1-50 out of 51 total
Computing Discrete Minimal Surfaces Using a Nonlinear Spring Model
Found in: Computing in Science and Engineering
By Yongquan Jiang, Li Chen, Qishu Chen, Qiang Peng, Jim X. Chen
Issue Date:November 2010
pp. 74-79
<p>A new algorithm can derive one or more minimal surfaces from an initial arbitrary surface with a fixed boundary.</p>
 
SMIS - A Real-Time Stereoscopic Medical Imaging System
Found in: Computer-Based Medical Systems, IEEE Symposium on
By Shuangbao Wang, Jim X. Chen, Zegang Dong, Robert S. Ledley
Issue Date:June 2004
pp. 197
In this paper, we present an x-ray radiography system which can provide intra-operative stereo imaging of the patient's operational area during a spinal surgery. We use two horizontally separated x-ray tubes and a flat-panel x-ray detector mounted on two e...
 
Guest Editors' Introduction: High-Dimensional Data Acquisition, Computing, and Visualization
Found in: Computing in Science and Engineering
By Aiichiro Nakano, Jim X. Chen
Issue Date:September 2003
pp. 14-15
<p>Data-centered collaboration on emerging cyberinfrastructures is expected to revolutionize science and engineering. Many experts predict grids of geographically distributed mass storage, high-end computers,and visualization platforms connected via ...
 
Using Geometric Algebra for 3D Linear Transformations
Found in: Computing in Science and Engineering
By Hua Zhang, Changqian Zhu, Qiang Peng, Jim X. Chen
Issue Date:May 2006
pp. 68-75
Different methods exist for deriving a 3D linear transformation, including vector algebra, geometric algebra, and matrix algebra. In this installment of Visualization Corner, we introduce Ron Goldman's unified derivation method in vector algebra combined w...
 
Real-Time Fluid Simulation in a Dynamic Virtual Environment
Found in: IEEE Computer Graphics and Applications
By Jim X. Chen, Niels da Vitoria Lobo, Charles E. Hughes, J. Michael Moshell
Issue Date:May 1997
pp. 52-61
This article presents a new method for real-time fluid simulation in computer graphics and dynamic virtual environments. By solving the 2D Navier-Stokes equations using a computational fluid dynamics method, the authors map the surface into 3D using the co...
 
Geographic Information Systems
Found in: Computing in Science and Engineering
By Jim X. Chen
Issue Date:January 2010
pp. 8-9
<p>This special issue addresses the challenges in handling geographics problems at a global scale, from earthquakes to climatic change, and from water-resource distribution to mountain classification. The various research and applications herein can ...
 
Real-Time Photorealistic Virtual Human Anatomy
Found in: Computing in Science and Engineering
By Yanling Liu, Jim X. Chen, Lin Yang
Issue Date:March 2008
pp. 41-47
This article presents a new, voxel-based virtual human anatomy learning system. Using cryosection images to construct human parts provides accurate natural-appearance rendering for both the boundary and inner structure of human parts. The authors developed...
 
Nonlinear Perspective Projections and Magic Lenses: 3D View Deformation
Found in: IEEE Computer Graphics and Applications
By Yonggao Yang, Jim X. Chen, Mohsen Beheshti
Issue Date:January 2005
pp. 76-84
Traditional computer graphics rendering engines are designed to carry out linear planar projections. This article presents a method to perform nonlinear perspective projections and 3D view deformation. The existing work regarding nonlinear deformation prim...
 
New Graphics Pipeline Approach Speeds Up Atomic Primitives Rendering
Found in: Computing in Science and Engineering
By Jim X. Chen
Issue Date:May 2003
pp. 86-88, c3
<p>Many graphics and visualization applications require fast rendering and animation of finely detailed objects constructed of what i call atomic primitives. A primitive is the basic graphics shape-such as a line or triangle-that is scan-converted in...
 
Nonlinear Projection: Using Deformations in 3D Viewing
Found in: Computing in Science and Engineering
By Yonggao Yang, Jim X. Chen, Woosung Kim, Changjin Kee
Issue Date:March 2003
pp. 54-59
<p>In computer graphics, parallel and perspective projections are the usual viewing methods to provide lifelike images. In fact, traditional rendering engines such as OpenGL and Direct3X only perform linear projection. But what if you need to generat...
 
Physics-Based Modeling and Real-Time Simulation
Found in: Computing in Science and Engineering
By Jim X. Chen, Yonggao Yang, Xusheng Wang
Issue Date:May 2001
pp. 98-102
In graphics, modeling is a process of constructing a virtual 3D object (a computer model) from a real or an imaginary entity. A graphics model is a description of an object or entity in the computer. Modeling tools make creating and constructing complex 3D...
 
Virtual Human Anatomy
Found in: Computing in Science and Engineering
By Lin Yang, Jim X. Chen, Yanling Liu
Issue Date:September 2005
pp. 71-73
To learn human anatomy, medical students must practice on cadavers, as must physicians when they want to brush up on their anatomy knowledge. However, cadavers are in short supply in medical schools worldwide. Virtual anatomy and surgery can potentially so...
 
Medical Simulations [Guest editors' introduction]
Found in: Computing in Science & Engineering
By Jim X. Chen,Yanlin Li,Tianyu Zhang
Issue Date:March 2013
pp. 8-9
The guest editors discuss the variety of articles represented in this special issue on medical simulations.
 
A Personal Reflection
Found in: Computing in Science and Engineering
By Jim X. Chen
Issue Date:July 2009
pp. 3
AEIC Jim Chen reflects on his involvement with CiSE magazine and why it matters as a forum for computational scientists and engineers.
 
Guest Editors' Introduction: Anatomic Rendering and Visualization
Found in: Computing in Science and Engineering
By Jim X. Chen, Tianyu Zhang
Issue Date:January 2007
pp. 11-12
The guest editors for this special issue on anatomic rendering and visualization introduce the field and its current state of the art, along with the articles they've chosen to demonstrate the next steps forward.
 
A Virtual Laboratory for Temporal Bone Microanatomy
Found in: Computing in Science and Engineering
By Pei-Dong Dai, Tian-Yu Zhang, Zheng-Min Wang, Jim X. Chen, Ke-Qiang Wang
Issue Date:March 2005
pp. 75-79
Learning temporal bone microanatomy is one of an otolaryngology (ear, nose, and throat) resident's most important and problematic tasks. The authors present a new method for generating and reconstructing 3D temporal bone models and their applications in st...
 
OpenGL Programming in Java
Found in: Computing in Science and Engineering
By Zhigen Xu, Yusong Yan, Jim X. Chen
Issue Date:January 2005
pp. 51-55
Released by Sun Microsystems in 2003, Java binding for OpenGL (JOGL; https://jogl.dev.java.net) provides students, scientists, and engineers with a new development environment for studying graphics, performing research, and building applications. In this a...
 
Guest Editors' Introduction: High-Dimensional Data Acquisition, Computing, and Visualization
Found in: Computing in Science and Engineering
By Jim X. Chen, Aiichiro Nakano
Issue Date:March 2003
pp. 12-13
<p>Today, more complex data is generated and collected than ever before in human history. This avalanche creates opportunities and information as well as dif.culties and challenges. Many people and places are dedicated to data acquisition, computing,...
 
Geographic Statistics Visualization: Web-Based Linked Micromap Plots
Found in: Computing in Science and Engineering
By Xusheng Wang, Jim X. Chen, Daniel B. Carr, B.Sue Bell, Linda Williams Pickle
Issue Date:May 2002
pp. 90-94
<p>Linked Micromap (LM) plots offer a new template for displaying spatially indexed statistical summaries. This template has four key features: it can <ul><li> Display at least three parallel sequences of panels (micromap, label, and stat...
 
Rendering Avatars in Virtual Reality: Integrating a 3D Model with 2D Images
Found in: Computing in Science and Engineering
By Yonggao Yang, Xusheng Wang, Jim X. Chen
Issue Date:January 2002
pp. 86-91
<p>Image-based rendering uses images or photographs to replace geometric models. This technique achieves shorter modeling time, faster rendering speed, and more realism. It also addresses different approaches for turning images into models and then i...
 
3D Graphics Formats and Conversions
Found in: Computing in Science and Engineering
By Jim X. Chen, Yonggao Yang
Issue Date:September 2000
pp. 67-73
No summary available.
 
Applications of Computer Graphics Software Tools
Found in: Computing in Science and Engineering
By Jim X. Chen, Ophir Frieder
Issue Date:November 1999
pp. 82-87
Graphics software tools open up new possibilities for researchers and scientists, but learning graphics programming might seem time-consuming or difficult, and the many new graphics tools might seem overwhelming. Fortunately, if you know how graphics work ...
 
3D Knee Modeling and Biomechanical Simulation
Found in: Computing in Science and Engineering
By Ying Zhu, Jim X. Chen, Shide Xiao, Edward B. Mac Mahon
Issue Date:July 1999
pp. 82-87
A knee joint's longevity depends on the proper integration of five variables: surface congruency, load distribution, stress during loading, contact area, and ligament tension. If some variables in just one small area are abnormal, this system fails, result...
 
Simulation and Visualization of Knee Joint Contact Using Deformable Model
Found in: Computer and Information Technology, International Conference on
By Ying Zhu, Jim X. Chen
Issue Date:September 2004
pp. 708-715
We introduce a new method for simulating and visualizing femur-menisci contact in human knee joint using computer generated 3D models. Knee joint contact analysis is important for understanding or solving clinical problems. Traditional knee biomechanical a...
 
Integrating Physics-Based Computing and Visualization: Modeling Dust Behavior
Found in: Computing in Science and Engineering
By Jim X. Chen, Xiaodong Fu
Issue Date:January 1999
pp. 12-16
No summary available.
 
A Virtual Platform for Auditory Organ Mechanics Analysis
Found in: Computing in Science and Engineering
By You-Zhou Xie, Lin Yang, Li-Fen Chen, Pei-Dong Dai, Tian-Yu Zhang, Jim X. Chen, Zheng-Min Wang
Issue Date:July 2009
pp. 74-80
To better understand the relationship between the sound conduction system's structure and function, the authors developed a virtual platform that integrates 3D reconstruction and finite element modeling of the peripheral auditory organ to simulate biomecha...
 
The Simulation of Benign Tumor Growth in Blood Vessels Circumstance
Found in: Computer Science and Software Engineering, International Conference on
By Gan Jian-Hong, Dai Pei-Dong, Peng Qiang, Jim X. Chen, Zhang Tian-Yu, Wang Zheng-Min
Issue Date:December 2008
pp. 223-227
It is very important to predict displacements and deformations of the vessels near tumor before actinotheraphy or surgery. To simulate the influence to blood vessel induced by tumor growth, cellular automata is employed to simulate the tumor growth, and th...
 
Impostors-Based Real-Time Avatar Behavior in Virtual Reality Systems
Found in: Distributed Simulation and Real Time Applications, IEEE/ACM International Symposium on
By Yonggao Yang, Jim X. Chen
Issue Date:August 2001
pp. 0037
Abstract: Real-time human-like avatar behavior in virtual environments makes important contributions to the realism of VR worlds. The existing human-like animation approaches demand intensive calculations and graphics rendering. Complex 3D avatar models ar...
 
Motion Simulation of Inner Hair Cell Stereocilia
Found in: Computing in Science & Engineering
By Lin Yang,Tian-Yu Zhang,Jim X. Chen,Pei-Dong Dai,Wei Quan,Ke-Qiang Wang,Zheng-Min Wang
Issue Date:March 2013
pp. 27-33
To investigate the interaction between stereocilia and the links of inner hair cells during the motion of the organ of Corti and local stress distribution, two 3D finite-element models were built. Static and dynamic simulation results showed that the top o...
 
Automatically Assessing Limb Alignment and Hip Fracture Using 3D Models
Found in: Computing in Science & Engineering
By Qi Xing,Rui Han,Yanlin Li,Wenzhen Yang,Jim X. Chen
Issue Date:March 2013
pp. 10-20
To allow an efficient assessment of lower limb alignment and hip fracture, 3D lower limb bone models are reconstructed from patient-specific computed tomography images. The 3D feature-construction system shown here automatically extracts 3D features (cente...
 
Geodesic Distance-Based Realistic Facial Animation Using RBF Interpolation
Found in: Computing in Science & Engineering
By Xianmei Wan,Shengjun Liu,Jim X. Chen,Xiaogang Jin
Issue Date:September 2012
pp. 49-55
A geodesic distance-based approach synthesizes natural facial animations using radial basis function (RBF) interpolation. The approach consists of two parts: the geodesic distance calculation and the geodesic distance-based RBF interpolation. The method wo...
 
Rapid Assessment of Secondary Disasters Induced by the Wenchuan Earthquake
Found in: Computing in Science and Engineering
By Jianrong Fan, Jim X. Chen, Bingwei Tian, Dong Yan, Genwei Cheng, Peng Cui, Wen Zhang
Issue Date:January 2010
pp. 10-19
<p>The Wenchuan earthquake of 12 May 2008 produced numerous secondary mountain disasters, including the formation of dangerous barrier lakes resulting from blocked river channels. By exploiting real-time, multiplatform remote sensing imagery data, re...
 
Near Real-Time Simulation of Particle Systems
Found in: Distributed Interactive Simulation and Real-Time Applications, International Workshop on
By Jim X. Chen, Edward J. Wegman, Xiaodong Fu, Yonggao Yang
Issue Date:March 1999
pp. 33
Simulation of particle systems is time consuming. However, many particle system applications require fast interactive animations. For example, simulation of physically realistic complex dust behaviors is very useful in training, education, art, advertising...
 
3D Automatic Feature Construction System for Lower Limb Alignment
Found in: Cyberworlds, International Conference on
By Qi Xing, Wenzhen Yang, Mark M. Theiss, Jihui Li, Qiang Peng, Jim X. Chen
Issue Date:October 2010
pp. 375-382
Accurate measurement of lower limb alignment is vital for orthopedic surgery planning. Based on the 3D lower limb bone models reconstructed from CT images, a 3D feature construction system is developed to find the lower limb alignment. This paper presents ...
 
Designing Computer Games to Teach Algorithms
Found in: Information Technology: New Generations, Third International Conference on
By Sahar S. Shabanah, Jim X. Chen, Harry Wechsler, Daniel Carr, Edward Wegman
Issue Date:April 2010
pp. 1119-1126
Data structures and algorithms are important foundation topics in computer science education. However, they are often complex and hard to understand. Therefore, we introduce a new learning strategy that benefits from computer games’ popularity and engageme...
 
Video Transmission Channel Distortion Estimation Model for H.264/AVC Based on Channel Simulation
Found in: Multimedia and Ubiquitous Engineering, International Conference on
By Qing-ming Zhang, Qiang Peng, Jim X. Chen, Ce Zhu
Issue Date:June 2009
pp. 64-69
A precise simulative estimate of a channel distortion model is proposed by analyzing characteristics of error propagation. This model can well be combined with the advantages of the recursive optimal per-pixel estimate model and the channel simulative esti...
 
Improved Strategies for OBB Fitting and Overlap Test for OBB
Found in: Computer Science and Software Engineering, International Conference on
By Gan Jian-Hong, Peng Qiang, Jim X. Chen
Issue Date:December 2008
pp. 996-999
The OBB (Oriented Bounding Box) are limited in application for the great computation load, especially deformable soft object for its complex computation. An improved OBB fitting method and OBB overlap test method are presented in this paper. The improve OB...
 
A Contour Map of the Ear's Vestibular Apparatus Based on 3D Reconstruction
Found in: Computing in Science and Engineering
By Tian-Yu Zhang, Pei-Dong Dai, Zheng-Min Wang, Ke-Qiang Wang, Jim X. Chen, Le Xie
Issue Date:January 2007
pp. 26-31
This article presents a method for developing anatomic contour maps that quantitatively display the vestibular apparatus's 3D spatial configurations. Contour maps are useful tools for determining the appropriate position of the drill and the safe depth and...
 
Water Wave Animation on Mesh Surfaces
Found in: Computing in Science and Engineering
By Shengjun Liu, Xiaogang Jin, Charlie C. L. Wang, Jim X. Chen
Issue Date:September 2006
pp. 81-87
This article proposes a practical approach for simulating the phenomenon of water waves on 3D mesh surfaces. First of all, the geodesic distance map, which will govern the movement of water waves in the simulation, is computed on a given mesh surface. Base...
 
Generic Summative Assessment Functional Model
Found in: Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, International Conference on & Self-Assembling Wireless Networks, International Workshop on
By Fahad T. Alotaiby, Jim X. Chen
Issue Date:May 2005
pp. 340-345
Using computer to enhance learning has been around for more than 40 years. It can be realized in various forms from Computer-Aided Instructions (CAI), Intelligent Tutoring System (ITS), to Web-Based Learning (WBL), and elearning systems. We are working on ...
 
Adaptive Web-Based Learning System
Found in: Engineering of Computer-Based Systems, IEEE International Conference on the
By Fahad T. Alotaiby, Jim X. Chen, Harry Wechsler, Edward J. Wegman, Debra Sprague
Issue Date:April 2005
pp. 423-430
This paper reports a web-based platform-independent adaptive learning system that serves both students and teachers. The content in the system is individually tailored toward student knowledge, which makes learning more personal, adaptive towards individua...
 
Gene Expression Clustering and 3D Visualization
Found in: Computing in Science and Engineering
By Yonggao Yang, Jim X. Chen, Woosung Kim
Issue Date:September 2003
pp. 37-43
<p>New methods of processing DNA microarray data use the self-organizing map (SOM), principal components analysis (PCA), and 3D data plotting to discover gene patterns, reduce gene data dimensions, and visualize the final results interactively in 3D ...
 
MUVEES: a PC-based Multi-User Virtual Environment for Learning
Found in: Virtual Reality Conference, IEEE
By Jim X. Chen, Yonggao Yang, Bowen Loftin
Issue Date:March 2003
pp. 163
This paper summarizes our NSF funded project, a PC-based multi-user learning environment: Multi-User Virtual Environment Experiential Simulator (MUVEES). The goal of this project is to create and evaluate graphical multi-user virtual environments that use ...
 
Distributed Interactive Learning Environment
Found in: Distributed Interactive Simulation and Real-Time Applications, International Workshop on
By Jim X. Chen, Christopher J. Dede, Xiaodong Fu, Yonggao Yang
Issue Date:March 1999
pp. 49
We present strategies and approaches used to implement a synthetic learning environment which includes networking, distributed interactive simulation, physically- based modeling, computational steering, and virtual reality for learning abstract scientific ...
 
A Virtual Reality System for Knee Diagnosis and Surgery Simulation
Found in: Virtual Reality Conference, IEEE
By Ying Zhu, Jim X. Chen, Xiaodong Fu, Donna Quammen
Issue Date:March 1999
pp. 84
No summary available.
 
Theme Editors' Introduction: Advancing Interactive Visualization and Computational Steering
Found in: Computing in Science and Engineering
By Jim X. Chen, David Rine, Horst D. Simon
Issue Date:December 1996
pp. 13-17
No summary available.
 
Simplifying algorithm learning using serious games
Found in: Proceedings of the 14th Western Canadian Conference on Computing Education (WCCCE '09)
By Jim X. Chen, Sahar Shabanah
Issue Date:May 2009
pp. 1-36
Algorithm Visualization using Serious Games (AVuSG) is an algorithm learning and visualization approach that uses serious computer games to teach algorithms. It visualizes an algorithm to be learned in four forms: a text, a flowchart, a game demo, and a ga...
     
Distributed application launching for high quality graphics in synchronous distance education
Found in: Proceedings of the 13th annual conference on Innovation and technology in computer science education (ITiCSE '08)
By J. Mark Pullen, Jim X. Chen
Issue Date:June 2008
pp. 5-6
Previous ITiCSE papers have reported on Network EducationWare (NEW), an open source software system that supports synchronous and asynchronous distance education easily and inexpensively via the Internet. This paper reports on an innovative capability rece...
     
Teacher-driven: web-based learning system
Found in: Proceedings of the 5th conference on Information technology education (CITC5 '04)
By Debra Sprague, Edward J. Wegman, Fahad T. Alotaiby, Harry Wechsler, Jim X. Chen
Issue Date:October 2004
pp. 284-284
This paper reports a web-based platform-independent adaptive learning system dedicated to both students and teachers. For a student who uses the system, the content in the system is individually tailored toward his or her knowledge, which makes learning mo...
     
An improvement on line scan-conversion
Found in: ACM SIGGRAPH 97 Visual Proceedings: The art and interdisciplinary programs of SIGGRAPH '97 (SIGGRAPH '97)
By Jim X. Chen
Issue Date:August 1997
pp. 159
This paper describes a physically-based rendering system tailored to the demands of lighting design and architecture. The simulation uses a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions...
     
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