Design and Development of a VR System for Exploration of Medical Data Using Haptic Rendering and High Quality Visualization PDF Download

Author: Roman Vlasov
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Virtual reality, haptic rendering, visualisation. - Virtuelle Realität, Haptik Rendering, Visualisierung

Author: Margaret L. McLaughlin
Publisher: Prentice Hall PTR
ISBN:
Category : Computers
Languages : en
Pages : 314

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Book Description
Haptics: The state-of-the-art in building touch-based interfaces for virtual environments. -- Key research issues: model acquisition, contact detection, force feedback, compression, capture, and collaboration. -- Understanding the role of human factors in haptic interfaces. -- Applications: medical training, telesurgery, biological and scientific interfaces, military applications, sign language, museum display, and more. Haptics -- "touch-based" interface design -- is the exciting new frontier in research on virtual and immersive environments. In Touch in Virtual Environments, the field's leading researchers bring together their most advanced work and applications. They identify the key challenges facing haptic interface developers, present today's best solutions, and outline a clear research agenda for the future. This book draws upon work first presented at the breakthrough haptics conference held recently at USC's Integrated Media Systems Center. The editors and contributors begins by reviewing key haptics applications and the challenges of effective haptic rendering, presenting new insights into model acquisition, contact detection, force feedback, compression, capture, collaboration, and other key issues. Next, they focus on the complex human factors associated with successful haptic interfaces, examining questions such as: How can we make haptic displays more usable for blind and visually impaired users? What are the differences between perceiving texture with the bare skin and with a probe? In the book's final section, several of today's leading haptic applications are introduced, including telesurgery and surgical simulation; scientific visualization.

Author: James D. Westwood
Publisher: IOS Press
ISBN: 9781586034047
Category : Computer vision in medicine
Languages : en
Pages : 450

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Book Description
A Prototype Virtual Reality System for Preoperative Planning of Neuro-Endovascular Interventions -- Validation of Soft Tissue Properties in Surgical Simulation with Haptic Feedback -- Comparison of CAVE and HM for Visual Stimulation in Postural Control Research -- Virtual Vision Loss Simulator -- Reaction-Time Measurement and Real-Tune Data Acquisition for Neuroscientific Experiments in Virtual Environments -- A Preliminary Study of Presence inVirtual Reality Training Simulation for Medical Emergencies -- An Ali System with Intuitive User Interface for Manipulation and Visualization of 3D Medical Data -- A Haptic Surgical Simulator for the Continuous Curvilinear Capsulorhexis Procedure During Cataract Surgery -- Haptic Rendering of Tissue Cutting with Scissors -- Increasing face validity of a vascular interventional training system -- An Endoscopic Sinus Surgery Training System for Assessment of Surgical Skill -- Acquiring Laparoscopic Manipulative Skills: A Virtual Tissue Dissection Training Module -- Novel Force Resolver Designs for a Haptic Surgery Simulator -- Author Index

Author: Robert Riener
Publisher: Springer Science & Business Media
ISBN: 1447140117
Category : Computers
Languages : en
Pages : 300

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Book Description
Virtual Reality has the potential to provide descriptive and practical information for medical training and therapy while relieving the patient or the physician. Multimodal interactions between the user and the virtual environment facilitate the generation of high-fidelity sensory impressions, by using not only visual and auditory, but also kinesthetic, tactile, and even olfactory feedback modalities. On the basis of the existing physiological constraints, Virtual Reality in Medicine derives the technical requirements and design principles of multimodal input devices, displays, and rendering techniques. Resulting from a course taught by the authors, Virtual Reality in Medicine presents examples for surgical training, intra-operative augmentation, and rehabilitation that are already in use as well as those currently in development. It is well suited as introductory material for engineering and computer science students, as well as researchers who want to learn more about basic technologies in the area of virtual reality applied to medicine. It also provides a broad overview to non-engineering students as well as clinical users, who desire to learn more about the current state of the art and future applications of this technology.

Author: Bernhard Preim
Publisher: Elsevier
ISBN: 0128231068
Category : Computers
Languages : en
Pages : 570

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Book Description
Visualization, Visual Analytics and Virtual Reality in Medicine: State-of-the-art Techniques and Applications describes important techniques and applications that show an understanding of actual user needs as well as technological possibilities. The book includes user research, for example, task and requirement analysis, visualization design and algorithmic ideas without going into the details of implementation. This reference will be suitable for researchers and students in visualization and visual analytics in medicine and healthcare, medical image analysis scientists and biomedical engineers in general. Visualization and visual analytics have become prevalent in public health and clinical medicine, medical flow visualization, multimodal medical visualization and virtual reality in medical education and rehabilitation. Relevant applications now include digital pathology, virtual anatomy and computer-assisted radiation treatment planning. Combines visualization, virtual reality and analytics Written by leading researchers in the field Gives the latest state-of-the-art techniques and applications

Author: William R. Sherman
Publisher: Elsevier
ISBN: 008052009X
Category : Computers
Languages : en
Pages : 623

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Book Description
Understanding Virtual Reality arrives at a time when the technologies behind virtual reality have advanced to the point that it is possible to develop and deploy meaningful, productive virtual reality applications. The aim of this thorough, accessible exploration is to help you take advantage of this moment, equipping you with the understanding needed to identify and prepare for ways VR can be used in your field, whatever your field may be. By approaching VR as a communications medium, the authors have created a resource that will remain relevant even as the underlying technologies evolve. You get a history of VR, along with a good look at systems currently in use. However, the focus remains squarely on the application of VR and the many issues that arise in the application design and implementation, including hardware requirements, system integration, interaction techniques, and usability. This book also counters both exaggerated claims for VR and the view that would reduce it to entertainment, citing dozens of real-world examples from many different fields and presenting (in a series of appendices) four in-depth application case studies. * Substantive, illuminating coverage designed for technical and business readers and well-suited to the classroom.* Examines VR's constituent technologies, drawn from visualization, representation, graphics, human-computer interaction, and other fields, and explains how they are being united in cohesive VR systems.* Via a companion Web site, provides additional case studies, tutorials, instructional materials, and a link to an open-source VR programming system.

Author: James D. Westwood
Publisher: IOS Press
ISBN: 9781586032036
Category : Computer vision in medicine
Languages : en
Pages : 626

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Book Description
Measurement of In-vivo Force Response of Intra-abdominal Soft Tissues for Surgical Simulation -- Estimation of Soft-Tissue Model Parameters Using Registered Pre- and Postoperative Facial Surface Scans -- Virtual Endoscopy using Spherical QuickTime-VR Panorama Views -- Integration of intraoperative radiotherapy (IORT) dose distribution into the postoperative CT-based external beam radiotherapy (EBRT) treatment planing -- The application of eyeglass displays in changing the perception of pain -- Evaluation of Visualization Techniques for Image-guided Navigation in Liver Surgery -- Enhanced stereographic x-ray images -- The Communication Between Therapist and Patient in Virtual Reality: The Role of Mediation Played by Computer Technology -- Virtual Reality Assisted Cognitive Behavioral Therapy for the Treatment of Panic Disorders with Agoraphobia. -- Dextrous and Shared Interaction with Medical Data: stereoscopic vision is more important than hand-image collocation -- Usability Analysis of VR Simulation Software -- Elastically Deformable 3D Organs for Haptic Surgical Simulation -- A Generic Arthroscopy Simulator Architecture -- Virtual Reality in 3D Echocardiography: Dynamic Visualization of Atrioventricular Annuli Surface Models and Volume Rendered Doppler-Ultrasound -- Engineering and Algorithm Design for an Image Processing API: A Technical Report on ITK - the Insight Toolkit -- Finite Element (FE) Modeling of the Mandible: from Geometric Model to Tetrahedral Volumetric Mesh -- Author Index

Author: Damon S. M. Liu
Publisher:
ISBN:
Category : Aneurysms
Languages : en
Pages : 17

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Book Description
Abstract: "Unsteady (time-varying) blood flow visualization motivates much of the research effort recently undertaken in Virtual Reality (VR) technology for medical applications. With continuously increasing resources for computing, simulation, and data acquisition, medical scientists are able to produce extremely large multidimensional and multivariate datasets with improving speed and accuracy. To ensure numerically [sic] stability, most simulations are computed using small time stepsize such that only a very small fraction of the total data change their values from one step to the next. The large quantities of simulated data are often stored in archives or databases on disk and moved to main memory during visualization. We are designing and developing a framework that supports an interactive exploration environment tailored to the particular needs of brain aneurysm specialists and directly assists them in accomplishing high-level tasks. We study a scheme that can exploit the spatial-temporal properties in simulated dataset to control the reconstruction fidelity based on the areas or features of interest. The scheme may automate and highlight the extraction of fluid topology where there are abrupt changes or local extremes, offering the possibility of investigating the position and illumination of emergency or disaster situations in an environment under a variety of conditions. Besides, this scheme should provide adequate support to offer substantial data reduction to permit local storage, and achieve considerable speedup in graphics rendering. The proposed framework defines a software architecture that needs to support computing and access to time-dependent data resident on a hierarchical storage devices [sic], including a large-scale RAID (Redundant Arrays of Inexpensive Disks) type storage server. The software architecture should scale and make transparent the location of data while satisfying run-time performance constraints. This architecture should also support exploration across heterogeneous hardware platforms. The UCLA's Virtual Aneurysm and Virtual World Data Server projects serve as the front- end and back-end application testbeds, respectively."

Author: James D. Westwood
Publisher: IOS Press
ISBN: 1586038222
Category : Medical
Languages : en
Pages : 596

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Book Description
We humans are tribal, grouping ourselves by a multitude of criteria: physical, intellectual, political, emotional, etc. The Internet and its auxiliary technologies have enabled a novel dimension in tribal behavior during our recent past. This growing connectivity begs the question: will individuals and their communities come together to solve some very urgent global problems? At MMVR, we explore ways to harness information technology to solve healthcare problems - and in the industrialized nations we are making progress. In the developing world however, things are more challenging. Massive urban poverty fuels violence and misery. Will global networking bring a convergence of individual and tribal problem-solving? Recently, a barrel-shaped water carrier that rolls along the ground was presented, improving daily life for many people. Also the One Laptop per Child project is a good example of how the industrialized nations can help the developing countries. They produce durable and simple laptops which are inexpensive to produce. At MMVR, we focus on cutting-edge medical technology, which is generally pretty expensive. While the benefits of innovation trickle downward, from the privileged few to the broader masses, we should expand this trickle into a flood. Can breakthrough applications in stimulation, visualization, robotics, and informatics engender tools as ingeniously as the water carrier or laptop? With some extra creativity, we can design better healthcare for the developing world too.

Author: James D. Westwood
Publisher: IOS Press
ISBN: 9789051993868
Category : Computer simulation
Languages : en
Pages : 432

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Book Description
Medicine is Art Medicine is supported by Science Medicine is enabled by Technology One will learn how leading-edge technology will affect the future of medical and surgical practice by improving access, quality, and continuity of care, while reducing cost. Contributors to the book are the world s leading researchers and developers in the field. Readers: Physicians, Surgeons, Information Scientists, Biomedical Professionals, Corporate Futurists, Biomechanical Engineers, Educators, Roboticists, Medical Technologists, Rehabilitation Specialists, Systems Integrators/Engineers, Psychotherapists/Behaviourists.