Physics Based Deformable Models
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Physics Based Deformable Models
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Author : Dimitris N. Metaxas
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Physics Based Deformable Models written by Dimitris N. Metaxas and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Physics-Based Deformable Models presents a systematic physics-based framework for modeling rigid, articulated, and deformable objects, their interactions with the physical world, and the estimate of their shape and motion from visual data. This book presents a large variety of methods and associated experiments in computer vision, graphics and medical imaging that help the reader better to understand the presented material. In addition, special emphasis has been given to the development of techniques with interactive or close to real-time performance. Physics-Based Deformable Models is suitable as a secondary text for graduate level courses in Computer Graphics, Computational Physics, Computer Vision, Medical Imaging, and Biomedical Engineering. In addition, this book is appropriate as a reference for researchers and practitioners in the above-mentioned fields.
Finite Element Method Simulation Of 3d Deformable Solids
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Author : Eftychios Sifakis
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2015-10-01
Finite Element Method Simulation Of 3d Deformable Solids written by Eftychios Sifakis and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-01 with Computers categories.
This book serves as a practical guide to simulation of 3D deformable solids using the Finite Element Method (FEM). It reviews a number of topics related to the theory and implementation of FEM approaches: measures of deformation, constitutive laws of nonlinear materials, tetrahedral discretizations, and model reduction techniques for real-time simulation. Simulations of deformable solids are important in many applications in computer graphics, including film special effects, computer games, and virtual surgery. The Finite Element Method has become a popular tool in many such applications. Variants of FEM catering to both offline and real-time simulation have had a mature presence in computer graphics literature. This book is designed for readers familiar with numerical simulation in computer graphics, who would like to obtain a cohesive picture of the various FEM simulation methods available, their strengths and weaknesses, and their applicability in various simulation scenarios. The book is also a practical implementation guide for the visual effects developer, offering a lean yet adequate synopsis of the underlying mathematical theory. Chapter 1 introduces the quantitative descriptions used to capture the deformation of elastic solids, the concept of strain energy, and discusses how force and stress result as a response to deformation. Chapter 2 reviews a number of constitutive models, i.e., analytical laws linking deformation to the resulting force that has successfully been used in various graphics-oriented simulation tasks. Chapter 3 summarizes how deformation and force can be computed discretely on a tetrahedral mesh, and how an implicit integrator can be structured around this discretization. Finally, chapter 4 presents the state of the art in model reduction techniques for real-time FEM solid simulation and discusses which techniques are suitable for which applications. Topics discussed in this chapter include linear modal analysis, modal warping, subspace simulation, and domain decomposition.
Integration Of Illumination Constraints In Deformable Models
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Author : Dimitrios Samaras
language : en
Publisher:
Release Date : 2001
Integration Of Illumination Constraints In Deformable Models written by Dimitrios Samaras and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Deformable Models In Medical Image Analysis
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Author : Ajit Singh
language : en
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
Release Date : 1998
Deformable Models In Medical Image Analysis written by Ajit Singh and has been published by Institute of Electrical & Electronics Engineers(IEEE) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Biological models categories.
Deformable models are a powerful, physics-based technique for representing, reconstructing, recognizing and manipulating nonrigid curves, surfaces and solids from their images and image sequence. As noninvasive medical imaging technologies continue their rapid development, techniques for reconstructing three-dimensional deformable models are becoming increasingly important in the medical field. Deformable Models in Medical Image Analysis focuses on the theoretical and practical aspects of deformable models. The book concentrates on recent developments in novel deformable modelling techniques and on the use of medical images to illustrate the capabilities of their algorithms. The first part of the text is devoted to the theoretical background of deformable models and illustrates their general applicability to medical imaging. The second part deals with segmentation and reconstruction. The final part concentrates on motion analysis and tracking.
Physics Based Probabilistic Motion Compensation Of Elastically Deformable Objects
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Author : Evgeniya Ballmann
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-07-30
Physics Based Probabilistic Motion Compensation Of Elastically Deformable Objects written by Evgeniya Ballmann and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-30 with Technology & Engineering categories.
A predictive tracking approach and a novel method for visual motion compensation are introduced, which accurately reconstruct and compensate the deformation of the elastic object, even in the case of complete measurement information loss. The core of the methods involves a probabilistic physical model of the object, from which all other mathematical models are systematically derived. Due to flexible adaptation of the models, the balance between their complexity and their accuracy is achieved.
Deformable Vsofm And Physics Based Modeling For Conceptual Design
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Author : Philip C. Igwe
language : en
Publisher:
Release Date : 2008
Deformable Vsofm And Physics Based Modeling For Conceptual Design written by Philip C. Igwe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Numerical Methods For Linear Complementarity Problems In Physics Based Animation
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Author : Sarah Niebe
language : en
Publisher: Springer Nature
Release Date : 2022-05-31
Numerical Methods For Linear Complementarity Problems In Physics Based Animation written by Sarah Niebe and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-31 with Mathematics categories.
Linear complementarity problems (LCPs) have for many years been used in physics-based animation to model contact forces between rigid bodies in contact. More recently, LCPs have found their way into the realm of fluid dynamics. Here, LCPs are used to model boundary conditions with fluid-wall contacts. LCPs have also started to appear in deformable models and granular simulations. There is an increasing need for numerical methods to solve the resulting LCPs with all these new applications. This book provides a numerical foundation for such methods, especially suited for use in computer graphics. This book is mainly intended for a researcher/Ph.D. student/post-doc/professor who wants to study the algorithms and do more work/research in this area. Programmers might have to invest some time brushing up on math skills, for this we refer to Appendices A and B. The reader should be familiar with linear algebra and differential calculus. We provide pseudo code for all the numerical methods, which should be comprehensible by any computer scientist with rudimentary programming skills. The reader can find an online supplementary code repository, containing Matlab implementations of many of the core methods covered in these notes, as well as a few Python implementations [Erleben, 2011]. Table of Contents: Introduction / Numerical Methods / Guide for Software and Selecting Methods / Bibliography / Authors' Biographies
Graphical Simulation Of Deformable Models
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Author : Jianping Cai
language : en
Publisher: Springer
Release Date : 2018-07-07
Graphical Simulation Of Deformable Models written by Jianping Cai and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-07 with Computers categories.
This book covers dynamic simulation of deformable objects, which is one of the most challenging tasks in computer graphics and visualization. It focuses on the simulation of deformable models with anisotropic materials, one of the less common approaches in the existing research. Both physically-based and geometrically-based approaches are examined. The authors start with transversely isotropic materials for the simulation of deformable objects with fibrous structures. Next, they introduce a fiber-field incorporated corotational finite element model (CLFEM) that works directly with a constitutive model of transversely isotropic material. A smooth fiber-field is used to establish the local frames for each element. To introduce deformation simulation for orthotropic materials, an orthotropic deformation controlling frame-field is conceptualized and a frame construction tool is developed for users to define the desired material properties. The orthotropic frame-field is coupled with the CLFEM model to complete an orthotropic deformable model. Finally, the authors present an integrated real-time system for animation of skeletal characters with anisotropic tissues. To solve the problems of volume distortion and high computational costs, a strain-based PBD framework for skeletal animation is explained; natural secondary motion of soft tissues is another benefit. The book is written for those researchers who would like to develop their own algorithms. The key mathematical and computational concepts are presented together with illustrations and working examples. It can also be used as a reference book for graduate students and senior undergraduates in the areas of computer graphics, computer animation, and virtual reality. Academics, researchers, and professionals will find this to be an exceptional resource.
Physics Based Subspace Deformation
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Author : Yin Yang
language : en
Publisher:
Release Date : 2013
Physics Based Subspace Deformation written by Yin Yang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Computer graphics categories.
Medical and biomechanical modeling involves a lot of deformation analysis as most human organs are soft deformable objects. The elastic deformable model often captures the natural features of the organs better than pure geometry or signal based approaches. Modeling heart beating, tumor growth, muscle tension, and numerous other medical and biomechanical research problems require such combination of kinematics, dynamics, mechanics, image analysis and graphics. Undoubtedly, the framework of fast deformation simulation provides good facilities to these problems.
Integration Of Deformable Tire Soil Interaction Simulation Capabilities In Physics Based Off Road Mobility Solver
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Author : Bryan Peterson
language : en
Publisher:
Release Date : 2016
Integration Of Deformable Tire Soil Interaction Simulation Capabilities In Physics Based Off Road Mobility Solver written by Bryan Peterson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Computer simulation categories.
The objective of this study is to integrate a continuum-based deformable tire and terrain interaction model into a general-use physics-based simulation environment capable of off-road vehicle mobility analysis and high-performance computing potential. Specifically, the physics-based deformable tire and terrain models which were recently proposed and validated by Yamashita, et al. will be implemented into the structure of the multi-physics simulation engine Chrono. In off-road vehicle mobility analysis, empirical and analytical models have been commonly used for vehicle-terrain interaction. While these models utilize experimental data or terramechanics theories to create quick predictive mobility models, they are unable to capture the highly nonlinear behavior of soft soil deformation, which can lead to inaccurate or unreliable results. In order to resolve these limitations, the use of physics-based numerical approaches have been proposed. These methods make use of finite element and discrete element simulations to describe the interaction between the vehicle and deformable terrain. Continuum-based finite element models transfer tire forces to the terrain and model the deformation with elasto-plastic constitutive models. Discrete element soil uses a large number of small rigid body particles to describe the microscale behavior of granular terrain, with the deformation of the soil represented by the motion and contact of the particles. While these physics-based models offer a more accurate vehicle-terrain interaction model, the solution procedure can become complex and computationally expensive since co-simulation techniques are often used. To address these issues, the analysis of physics-based full vehicle dynamics simulations utilizing high-fidelity deformable tire and terrain models in a multi-physics engine with high-performance computing capability is desired.