This thesis presents novel algorithms for deformable dynamics, collision detection and contact resolution between reduced nonlinear 3D deformable objects, for use in interactive computer graphics and haptics. The deformable models investigated are elastic, volumetric, and capable of undergoing large deformations. Each mesh vertex of a general 3D deformable object has three degrees of freedom. N...

This paper gives a n overview of o u r f ramework for the automated segmentation and motion analysis of cardiac motion from MRI tagging lines. I t consists of a series of novel methods which utilize theory from image processing, deformable models a n d finite elements. O u r f ramework consists of several steps. I n the first step we use G a b o r Filter banks a n d deformable models for the au...

This paper presents the design of an expandable animation system in which rigid and deformable multi-body systems are animated from the high-level model of physical objects. This new model called dream (Deformable and Rigid objects EEcient for Animation Modelling) makes the simulation of rigid and de-formable interconnected objects easy to design and to implement. dream is based on a uniied abs...

We present a novel approach, based on local image histograms, for statistically characterizing the appearance of deformable models. In deformable model segmentation, appearance models measure the likelihood of an object given a target image. To determine this likelihood we compute pixel intensity histograms of local object-relative image regions from a 3D image volume near the object boundary. ...

In this paper, we present a method for simulating the interaction of fluids with deformable solids. The method is designed for the use in interactive systems such as virtual surgery simulators where the real-time interplay of liquids and surrounding tissue is important. In computer graphics, a variety of techniques have been proposed to model liquids and deformable objects at interactive rates....

In this paper, we present a new approach to tackle simultaneously linear and deformable registration between a pair of images. Our combined formulation avoids the bias created when linear registration is performed independently before a deformable registration. Our registration problem is formulated as a discrete Markov Random Field employing a higher order objective function. To cope with both...

Real-time high quality rendering of complex models remains a big challenge. Simply splitting the models into several parts which can be simplified and rendered independently introduces disturbing gaps along the common borders. Recent approaches for viewdependent rendering of huge models either neglect the artifacts introduced by the gaps or try to maintain the connectivity of the models. Unfort...

This thesis presents novel algorithms for deformable dynamics, collision detection and contact resolution between reduced nonlinear 3D deformable objects, for use in interactive computer graphics and haptics. The deformable models investigated are elastic, volumetric, and capable of undergoing large deformations. Each mesh vertex of a general 3D deformable object has three degrees of freedom. N...

Christian Lauterbach: Interactive Ray Tracing of Massive and Deformable Models. (Under the direction of Dinesh Manocha.) Ray tracing is a fundamental algorithm used for many applications such as computer graphics, geometric simulation, collision detection and line-of-sight computation. Even though the performance of ray tracing algorithms scales with the model complexity, the high memory requir...

Lumped element models, also known as, mass-spring-damper models, are widely used to simulate deformable objects because of their simplicity and computational efficiency. However, the parameters of lumped element models are typically determined in an ad hoc fashion through trial-and-error, as these models are not directly based on continuum mechanics of deformable objects. In this paper, an alte...