Geometrically And Physically Based Modeling For Deformable Objects Simulating Soft Tissue Interactions In Surgery Environments PDF Download
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| Author | : Sukitti Punak |
| Publisher | : |
| Total Pages | : |
| Release | : 2007 |
| Genre | : |
| ISBN | : |
Download Geometrically and Physically Based Modeling for Deformable Objects Simulating Soft Tissue Interactions in Surgery Environments Book in PDF, ePub and Kindle
ABSTRACT: This dissertation contributes a method for modeling deformable objects that leverages computer graphics techniques and state-of-the-art hardware to simulate and visualize deformations, including topological transformations like cutting, in real time. The resulting models are suitable for interactive surgical simulation for illustration and teaching purposes. The approach has been tested, in particular, by modeling responsive fatty tissue. To support force feedback as well as visual feedback, the deformable object consists of three closely coupled representations for dynamic response, collision detection, and visualization. All three representations are implemented on the Graphics Processing Unit, rather than on the CPU, to leverage parallelism for speed.
| Author | : Eftychios Sifakis |
| Publisher | : Morgan & Claypool Publishers |
| Total Pages | : 71 |
| Release | : 2015-10-01 |
| Genre | : Computers |
| ISBN | : 162705443X |
Download Finite Element Method Simulation of 3D Deformable Solids Book in PDF, ePub and Kindle
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.
| Author | : Nicholas Ayache |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 398 |
| Release | : 2003-06-04 |
| Genre | : Computers |
| ISBN | : 3540404392 |
Download Surgery Simulation and Soft Tissue Modeling Book in PDF, ePub and Kindle
This book constitutes the refereed proceedings of the International Symposium on Surgery Simulation and Soft Tissue Modeling, IS4TM 2003, held in Juan-Les-Pins, France in June 2003. The 33 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 45 submissions. The papers are organized in topical sections on soft tissue models, haptic rendering, cardiac modeling, and patient specific simulators.
| Author | : Jianping Cai |
| Publisher | : Springer |
| Total Pages | : 120 |
| Release | : 2016-12-20 |
| Genre | : Computers |
| ISBN | : 3319510312 |
Download Graphical Simulation of Deformable Models Book in PDF, ePub and Kindle
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.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2004 |
| Genre | : |
| ISBN | : |
Download Heterogeneous Deformable Object Modeling for Medical Surgical Simulation and Collaborative Product Development with Haptic Interfaces Book in PDF, ePub and Kindle
This research focuses on the investigation of heterogeneous deformable object modeling, physically based simulation, haptic force rendering and collaborative techniques for medical surgical simulation, virtual prototyping and collaborative product development. Heterogeneous deformable models can be used to present internal geometric structures and different material properties of biological tissues and other soft-material objects for many Virtual Reality (VR) systems like surgical simulators. Cutting simulation is an important component of VR systems to modify the topology of deformable models. In this paper, a tri-ray node snapping algorithm is presented to generate volumetric heterogeneous mass spring models from a set of interface surfaces between different materials of deformable objects. A constrained local static integration method is proposed to quickly find the equilibrium solution of physically-based deformation behaviors. A 3D node snapping algorithm is developed to implement the topology modification on heterogeneous deformable models. Smooth cut is generated directly by duplicating and displacing mass points that are snapped along cutting planes. Sets of triangular surfaces representing different soft tissues are generated along the new cut to present internal geometric structures and corresponding material properties. A quasi-static algorithm is presented to refine the mesh in the vicinity of new cuts. A lab-built 6-DOF (degree of freedom) input and 5-DOF output haptic interface system is integrated with the developed system to provide force-torque feedback to users. The marriage of network collaborative technology and the proposed deformable object modeling and simulation techniques has a great potential for more extensive applications. Challenges such as heavy computation and data synchronization exist when integrating heterogeneous deformable object models and haptic interfaces with collaborative VR systems. To balance the computational burden of hap.
| Author | : Joey Sing Yee Tan |
| Publisher | : Springer |
| Total Pages | : 88 |
| Release | : 2019-04-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3030155854 |
Download Real-time Knowledge-based Fuzzy Logic Model for Soft Tissue Deformation Book in PDF, ePub and Kindle
This book provides a real-time and knowledge-based fuzzy logic model for soft tissue deformation. The demand for surgical simulation continues to grow, as there is a major bottleneck in surgical simulation designation and every patient is unique. Deformable models, the core of surgical simulation, play a crucial role in surgical simulation designation. Accordingly, this book (1) presents an improved mass spring model to simulate soft tissue deformation for surgery simulation; (2) ensures the accuracy of simulation by redesigning the underlying Mass Spring Model (MSM) for liver deformation, using three different fuzzy knowledge-based approaches to determine the parameters of the MSM; (3) demonstrates how data in Central Processing Unit (CPU) memory can be structured to allow coalescing according to a set of Graphical Processing Unit (GPU)-dependent alignment rules; and (4) implements heterogeneous parallel programming for the distribution of grid threats for Computer Unified Device Architecture (CUDA)-based GPU computing.
| Author | : Nicholas Ayache |
| Publisher | : Springer |
| Total Pages | : 398 |
| Release | : 2003-08-03 |
| Genre | : Computers |
| ISBN | : 3540450157 |
Download Surgery Simulation and Soft Tissue Modeling Book in PDF, ePub and Kindle
This book constitutes the refereed proceedings of the International Symposium on Surgery Simulation and Soft Tissue Modeling, IS4TM 2003, held in Juan-Les-Pins, France in June 2003. The 33 revised full papers presented together with 3 invited papers were carefully reviewed and selected from 45 submissions. The papers are organized in topical sections on soft tissue models, haptic rendering, cardiac modeling, and patient specific simulators.
| Author | : Julien Bosman |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2015 |
| Genre | : |
| ISBN | : |
Download Physically-based 6-DoF Nodes Deformable Models Book in PDF, ePub and Kindle
Despite the promising advances done in medical simulation, the complete virtual patient's model is yet to come. There are still many avenues for improvements, especially concerning the mechanical modeling of boundary conditions.So far, most of the work has been dedicated to organs simulation, which are generally simulated alone. This raises a real problem as the role of the surrounding organs in boundary conditions is neglected. However, these interactions can be complex, involving contacts but also mechanical links provided by layers of soft tissues known as connective tissues. As a consequence, the mutual influences between the anatomical structures are generally simplified, weakening realism of simulations.This thesis aims at studying the importance of the connective tissues, and especially of a proper modeling of the boundary conditions. To this end, the role of the ligaments during laparoscopic liver surgery has been investigated. In order to enhance the simulations' realism, a mechanical model dedicated to the connective tissues has been worked out. This has led to the development of a physically-based method relying on material points that can, not only translate, but also rotate themselves. The goal of this model is to enable the simulation of multiple organs linked by complex interactions.In addition, the work on the connective tissues model has been derived to be used in soft robotics. The principle of relying on orientable material points has been used to developed a reduced model that can reproduce the behavior of more complex structures. The objective of this work is to provide the means to control - in real-time - a soft robot made of a deformable arm.
| Author | : James D. Westwood |
| Publisher | : IOS Press |
| Total Pages | : 632 |
| Release | : 2001 |
| Genre | : Computer simulation |
| ISBN | : 9781586031435 |
Download Medicine Meets Virtual Reality 2001 Book in PDF, ePub and Kindle
Anatomical Accuracy in Medical 3D Modeling
| Author | : James D. Westwood |
| Publisher | : IOS Press |
| Total Pages | : 432 |
| Release | : 1998 |
| Genre | : Computer simulation |
| ISBN | : 9789051993868 |
Download Medicine Meets Virtual Reality Book in PDF, ePub and Kindle
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.
