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Author: Yuan Tian Publisher: ISBN: Category : Haptic devices Languages : en Pages :
Book Description
Since haptic rendering brings more real, more immersive and engaging experience into the 3D immersive environment, it greatly catches people's attention in broad fields such as medical therapy, gaming industry, robotics, etc. Haptic rendering in 3D immersive environment has become one of the trending research topics in recent years. Though there are many researches that well investigated this topic, there are still new challenges when introducing haptic feedback into the applications like Virtual / Mixed Reality and Tele-immersion. In 3D immersive environment, haptic rendering not only requires efficiency, stability, transparency, but also needs synchronization, disparity handling, delay compensation in networked applications. This dissertation aims to overcome the emerging challenges in the haptic-enabled 3D immersive environments. Specifically, three main research tasks are identified in the dissertation: bidirectional haptic rendering in 3D Tele-immersion, haptic rendering of 3D streaming deformable surface, and haptic-enabled 3D deformation. To solve the research problems, a set of novel approaches are presented in this dissertation. A Haptic-enabled Tele-Immersive Musculoskeletal Examination (H-TIME) system is developed that enables bi-directional force feedback and motion, facilitating remote evaluation of the patients associated with joints and muscles. A real-time haptic method is proposed to interact with 3D deformable streaming surface which is under 3D reconstruction. A real-time haptic rendering method is proposed to enable the interaction with 3D deformable objects using (multiple) haptic devices, which is able to provide with natural and smooth haptic rendering and fast stable 3D deformation. Based on the proposed methods, applications are developed to solve the real-world problems in medicine, training, and robotics.
Author: Yuan Tian Publisher: ISBN: Category : Haptic devices Languages : en Pages :
Book Description
Since haptic rendering brings more real, more immersive and engaging experience into the 3D immersive environment, it greatly catches people's attention in broad fields such as medical therapy, gaming industry, robotics, etc. Haptic rendering in 3D immersive environment has become one of the trending research topics in recent years. Though there are many researches that well investigated this topic, there are still new challenges when introducing haptic feedback into the applications like Virtual / Mixed Reality and Tele-immersion. In 3D immersive environment, haptic rendering not only requires efficiency, stability, transparency, but also needs synchronization, disparity handling, delay compensation in networked applications. This dissertation aims to overcome the emerging challenges in the haptic-enabled 3D immersive environments. Specifically, three main research tasks are identified in the dissertation: bidirectional haptic rendering in 3D Tele-immersion, haptic rendering of 3D streaming deformable surface, and haptic-enabled 3D deformation. To solve the research problems, a set of novel approaches are presented in this dissertation. A Haptic-enabled Tele-Immersive Musculoskeletal Examination (H-TIME) system is developed that enables bi-directional force feedback and motion, facilitating remote evaluation of the patients associated with joints and muscles. A real-time haptic method is proposed to interact with 3D deformable streaming surface which is under 3D reconstruction. A real-time haptic rendering method is proposed to enable the interaction with 3D deformable objects using (multiple) haptic devices, which is able to provide with natural and smooth haptic rendering and fast stable 3D deformation. Based on the proposed methods, applications are developed to solve the real-world problems in medicine, training, and robotics.
Author: Margaret L. McLaughlin Publisher: Prentice Hall PTR ISBN: Category : Computers Languages : en Pages : 314
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: Ming C. Lin Publisher: CRC Press ISBN: 1439865140 Category : Computers Languages : en Pages : 623
Book Description
For a long time, human beings have dreamed of a virtual world where it is possible to interact with synthetic entities as if they were real. It has been shown that the ability to touch virtual objects increases the sense of presence in virtual environments. This book provides an authoritative overview of state-of-theart haptic rendering algorithms
Author: Miguel A. Otaduy Publisher: Morgan & Claypool Publishers ISBN: 1598291149 Category : Dokunma Languages : en Pages : 113
Book Description
The human haptic system, among all senses, provides unique and bidirectional communication between humans and their physical environment. Yet, to date, most human-computer interactive systems have focused primarily on the graphical rendering of visual information and, to a lesser extent, on the display of auditory information. Extending the frontier of visual computing, haptic interfaces, or force feedback devices, have the potential to increase the quality of human-computer interaction by accommodating the sense of touch. They provide an attractive augmentation to visual display and enhance the level of understanding of complex data sets. They have been effectively used for a number of applications including molecular docking, manipulation of nano-materials, surgical training, virtual prototyping, and digital sculpting. Compared with visual and auditory display, haptic rendering has extremely demanding computational requirements. In order to maintain a stable system while displaying smooth and realistic forces and torques, high haptic update rates in the range of 5001000 Hz or more are typically used. Haptics present many new challenges to researchers and developers in computer graphics and interactive techniques. Some of the critical issues include the development of novel data structures to encode shape and material properties, as well as new techniques for geometry processing, data analysis, physical modeling, and haptic visualization. This synthesis examines some of the latest developments on haptic rendering, while looking forward to exciting future research in this area. It presents novel haptic rendering algorithms that take advantage of the human haptic sensory modality. Specifically it discusses different rendering techniques for various geometric representations (e.g. point-based, polygonal, multiresolution, distance fields, etc), as well as textured surfaces.
Author: Chris Gunn Publisher: ISBN: Category : Human-computer interaction Languages : en Pages : 262
Book Description
Haptic (force) feedback has had limited use outside laboratory environments due to the high purchase cost of the equipment. Potential users and their managers have no evidence that the benefits that it provides outweigh the costs involved. While the cost can be expected to ease with time, at present it is limiting the spread of the technology. While haptics enthusiasts may be convinced of its value, there is a lack of evidence of the techniques and the types of applications that can benefit from a haptic interface. This thesis examines the utility that haptics provides to a computer user. It does this by following a series of publications written by the author on various aspects of the subject and adds to these the results of some, as-yet unpublished, experiments. The publications describe several immersive, 3D prototypes and applications that were developed by the author and his colleagues in the CSIRO1 Virtual Environments Laboratory in Canberra, Australia between 1999 and 2006. The work shows that haptic feedback can be successfully integrated into artistic, planning and teaching environments and in these cases it can enhance the user s perception of the virtual environment being depicted. All the software for these applications was built upon a framework that originated from the laboratory and is described in some of the papers included in the thesis. The networking of haptic applications is covered by several of the papers as well as analysed more closely in the text. The author has been able to create collaborative haptic applications that run successfully over much larger distances than were previously thought possible, overcoming some of the problems introduced by the inherent latency of the network. It should be noted, however, that the solutions detailed will only apply to interaction with certain types of virtual objects and do not provide a general solution to latency that will cover any scenario. Nonetheless, the techniques do satisfactorily cover many of the situations that are likely to be encountered when developing virtual reality simulation software.
Author: Matjaž Mihelj Publisher: Springer Science & Business Media ISBN: 9400757182 Category : Technology & Engineering Languages : en Pages : 217
Book Description
This book covers all topics relevant for the design of haptic interfaces and teleoperation systems. The book provides the basic knowledge required for understanding more complex approaches and more importantly it introduces all issues that must be considered for designing efficient and safe haptic interfaces. Topics covered in this book provide insight into all relevant components of a haptic system. The reader is guided from understanding the virtual reality concept to the final goal of being able to design haptic interfaces for specific tasks such as nanomanipulation. The introduction chapter positions the haptic interfaces within the virtual reality context. In order to design haptic interfaces that will comply with human capabilities at least basic understanding of human sensors-motor system is required. An overview of this topic is provided in the chapter related to human haptics. The book does not try to introduce the state-of-the-art haptic interface solutions because these tend to change quickly. Only a careful selection of different kinematic configurations is shown to introduce the reader into this field. Mathematical models of virtual environment, collision detection and force rendering topics are strongly interrelated and are described in the next two chapters. The interaction with the virtual environment is simulated with a haptic interface. Impedance and admittance based approaches to haptic robot control are presented. Stability issues of haptic interaction are analyzed in details and solutions are proposed for guaranteeing stable and safe operation. Finally, haptic interaction is extended to teleoperation systems. Virtual fixtures which improve the teleoperation and human-robot cooperation in complex environments are covered next and the last chapter presents nanomanipulation as one specific example of teleoperation.
Author: Gianni Campion Publisher: Springer Science & Business Media ISBN: 0857295764 Category : Computers Languages : en Pages : 170
Book Description
The sense of touch is fundamental during the interaction between humans and their environment; in virtual reality, objects are created by computer simulations and they can be experienced through haptic devices. In this context haptic textures are fundamental for a realistic haptic perception of virtual objects. This book formalizes the specific artefacts corrupting the rendering of virtual haptic textures and offers a set of simple conditions to guide haptic researchers towards artefact-free textures. The conditions identified are also extremely valuable when designing psychophysical experiments and when analyzing the significance of the data collected. The Synthesis of Three Dimensional Haptic Textures, Geometry, Control, and Psychophysics examines the problem of rendering virtual haptic textures with force feedback devices. The author provides an introduction to the topic of haptic textures that covers the basics of the physiology of the skin, the psychophysics of roughness perception, and the engineering challenges behind haptic textures rendering. The book continues with the presentation of a novel mathematical framework that characterizes haptic devices, texturing algorithms and their ability to generate realistic haptic textures. Finally, two psychophysical experiments link the perception of roughness with the parameters of the haptic rendering algorithms. This book formalizes the specific artefacts corrupting the rendering of virtual haptic textures and offers a set of simple conditions to guide haptic researchers towards artefact-free textures. The conditions identified are also extremely valuable when designing psychophysical experiments and when analyzing the significance of the data collected.
Author: Ming C. Lin Publisher: A K Peters/CRC Press ISBN: Category : Computers Languages : en Pages : 634
Book Description
For a long time, human beings have dreamed of a virtual world where it is possible to interact with synthetic entities as if they were real. It has been shown that the ability to touch virtual objects increases the sense of presence in virtual environments. This book provides an authoritative overview of state-of-theart haptic rendering algorithms and their applications. The authors examine various approaches and techniques for designing touch-enabled interfaces for a number of applications, including medical training, model design, and maintainability analysis for virtual prototyping, scientific visualization, and creative processes.
Author: Abdulmotaleb El Saddik Publisher: Springer Science & Business Media ISBN: 3642226582 Category : Computers Languages : en Pages : 230
Book Description
The term “haptics” refers to the science of sensing and manipulation through touch. Multiple disciplines such as biomechanics, psychophysics, robotics, neuroscience, and software engineering converge to support haptics, and generally, haptic research is done by three communities: the robotics community, the human computer interface community, and the virtual reality community. This book is different from any other book that has looked at haptics. The authors treat haptics as a new medium rather than just a domain within one of the above areas. They describe human haptic perception and interfaces and present fundamentals in haptic rendering and modeling in virtual environments. Diverse software architectures for standalone and networked haptic systems are explained, and the authors demonstrate the vast application spectrum of this emerging technology along with its accompanying trends. The primary objective is to provide a comprehensive overview and a practical understanding of haptic technologies. An appreciation of the close relationship between the wide range of disciplines that constitute a haptic system is a key principle towards being able to build successful collaborative haptic environments. Structured as a reference to allow for fast accommodation of the issues concerned, this book is intended for researchers interested in studying touch and force feedback for use in technological multimedia systems in computer science, electrical engineering, or other related disciplines. With its novel approach, it paves the way for exploring research trends and challenges in such fields as interpersonal communication, games, or military applications.
Author: Yuan Tian
Author: Yuan Tian
Author: Margaret L. McLaughlin
Author: Ming C. Lin
Author: Miguel A. Otaduy
Author: Chris Gunn
Author: Matjaž Mihelj
Author: Gianni Campion
Author: Youngung Shon
Author: Ming C. Lin
Author: Abdulmotaleb El Saddik