This paper presents an accurate, very fast approach for the deformations of 2D physically based shape models representing open and closed curves. The introduced models overcome the main shortcoming of other deformable models, i.e. computation time. The approach relies on the determination of explicit deformation governing equations, that involve neither eigenvalue decomposition nor any other co...

The paper presents a new parameter-free approach to non-rigid image registration, where displacements, obtained through a mapping of boundary structures in the source and target image, are incorporated as hard constraints into elastic image deformation. As a consequence, our approach does not contain any parameters of the deformation model (elastic constants). The approach guarantees the exact ...

3 INTRODUCTION 4 Aim and approach 4 Structural domains in the Swedish part of the Baltic Shield defined by deformation zones and formline patterns 4 Age and character of high-T deformation zones in the Baltic Shield 6 GEOLOGY OF EAST CENTRAL SWEDEN 7 Rocks and ages 7 Metamorphism 8 Typical features of low pressure-high temperature metamorphism 9

To achieve geometric reconstruction from 3D datasets two complementary approaches have been widely used. On one hand the deformable model framework locally applies forces to t the data. On the other hand, the non-rigid registration framework computes a global transformation minimizing the distance between a template and the data. We rst show that applying a global transformation on a surface te...

If little is known about the sample under test, ascertaining a quantitative material true stress–true strain relationship from a small punch test is not direct. Conventional inverse simulation methods have used experimental force–displacement curves that ignore the deformation shape of the punched sample. We present small punch test methodology and results that used experimental deformation sha...

We present a method for nonrigid motion analysis in time sequences of volume images (4D data). In this method, nonrigid motion of the deforming object contour is dynamically approximated by a physically-based deformable surface. In order to reduce the number of parameters describing the deformation, we make use of a modal analysis which provides a spatial smoothing of the surface. The deformati...

In this work, we propose a method to interactively deform high-resolution volumetric datasets, such as those obtained through medical imaging. Interactive deformation enables the visualization of these datasets in full detail using state-of-the-art volume rendering techniques as they are dynamically modified. Our approach relies on resampling the original dataset to a target regular grid, follo...

The atomistic mechanisms active during plastic deformation of nanocrystalline metals are still a subject of controversy. The recently developed approach of combining automated crystal orientation mapping (ACOM) and in situ straining inside a transmission electron microscope was applied to study the deformation of nanocrystalline Pd x Au1- x thin films. This combination enables direct imaging of...

With the advent of contemporary GPUs, it has been possible to perform volume deformation at interactive rates. In particular, it has been shown that deformation can be important for the purposes of illustration. In such cases, rather than being the result of a physically-based simulation, volume deformation is often goal-oriented and user-guided. For this purpose, it is important to provide the...