We present an image editing tool that allows to deform and composite image regions using an intuitive sketch-based interface. Users simply draw the outline of the source image region and sketch a new boundary shape onto the location where this region is to be pasted. The deformation optimizes a shape distortion energy, and we use Poisson cloning for subsequent compositing. Since the corresponde...

B. Zhang, R. P. Gullapalli Magnetic Resonance Research Center, Dept of Radiology, University of Maryland School of Medicine, Baltimore, MD, United States Background Magnetic resonance imaging using the endorectal coil (erMRI) has become the clinical standard in the diagnosis of prostate cancer as it provides excellent quality high resolution images. However the images and spectra obtained using...

In this article, stress analysis and energy estimation during cold-roll forming of symmetrical channel sections have been discussed. Geometry of sheet strip is pre-estimated by a shape function. Then longitudinal, transversal and shear strains have been calculated. Using both the Levy-Mises and the Prandtl Reuss equations, and also considering the Bauschinger effect, stress distributions have b...

The main contribution of this paper is the definition of multilabel simple points that ensures that the partition topology remains invariant during a deformable partition process. The definition is based on simple intervoxel properties and is easy to implement. A deformation process is carried out with a greedy energy minimization algorithm. A discrete area estimator is used to approach at best...

We present a novel variational method to non rigid registration of multi-modal data. A suitable deformation will be determined via the minimization of a morphological, i.e., contrast invariant, matching functional along with an appropriate regularization energy. Here we want to give special focus on the practical issues involving scale-space methods, regularization of the corresponding gradient...

A numerical scheme is proposed to generate a microstructure of a martensitic material when subjected to arbitrary boundary conditions. The deformation gradient is decomposed multiplicatively into an elastic strain and a transformation strain. The elastic part ensures compatibility between the (conforming) finite elements. A global energy minimization scheme similar to Genetic Algorithms, yet su...

We present a novel method for flexible and efficient simulation of example-based elastic deformation. The geometry of all input shapes is projected into a common shape space spanned by the Laplace-Beltrami eigenfunctions. The eigenfunctions are coupled to be compatible across shapes. Shape representation in the common shape space is scale-invariant and topology-independent. The limitation of pr...

We investigate the viscoelastic properties of entangled networks of semiflexible polymers. At intermediate time scales the elastic response of these networks to shear deformation is described by the plateau modulus G. Different scaling laws with polymer concentration c have been proposed based on the assumption that the deformation field is affine on all length scales. We develop a numerical ap...

We present models of the microstructure of martensite that occurs when twinned layers of martensite meet a pure variant. This microstructure often occurs below the A, temperature, with loading that favors the passage from one pure variant of martensite to another. This microstructure gives a mechanism for variant rearrangement. In this microstructure, the layers are observed to pinch down to sh...