Magnetic resonance images are affected by motion artefacts due to breathing and cardiac beating that occur during the acquisition. Methods for joint reconstruction of image and motion have been proposed recently. Such optimization problems are ill-conditioned, therefore regularization methods are required such as motion smoothness constraints using the Tikhonov method. However with Tikhonov met...

The success of nonrigid motion analysis using physical finite element model is dependent on the mesh that characterizes the object’s geometric structure. We suggest a deformable mesh adapted to the natural features of images. The adaptive mesh requires much fewer number of nodes than the fixed mesh which was used in our previous work. We demonstrate the higher efficiency of the adaptive mesh in...

The paper focuses on a mesh moving method based on non-conformal topologically changing grids for Adaptive Large Eddy Simulation of IC engines in OpenFOAM®. With respect to authors’ previous work, a more efficient algorithm to handle the connectivity of non-conformal interfaces and a mesh-motion solver supporting multiple layer addition/removal of cells, to decouple the timestep constraints of ...

Motion capture (MC) data are the most reliable source of information about human body motion. Such data are widely used in different kinds of applications, for example, movies creation, game development, physical simulation of human body etc. The task of markers registration on the surface of 3D mesh model, describing human body, is a necessary step of all mentioned applications. In publicly av...

We evaluate performances of different implementations of affine transform in motion compensation architecture based on a hierarchical adaptive structured mesh. The architecture predicts the next video frame using the reference frame, mesh code and mesh node motion vectors. It achieves significant reduction in describing the mesh topology by coding the splitting in recursive triangulation of the...

In this research, numerical simulation of a symmetric impact of a 2-D wedge, considering dynamic equations in two-phase flow is taken into account. The two-phase flow around the wedge is solved based on finite volume method and volume of fluid (VOF) scheme. The dynamic mesh model is used to simulate dynamic motion of the wedge, thereby the effects of different dynamic meshes in both structured ...

A method for creating 3D texture coordinates for a sequence of polygon meshes with changing topology and vertex motion vectors. Keywords— texture, coordinate, uv, uvw, sequence, polygon, mesh, motion, marching, cube, changing, topology, empolygonizer, emtopolizer