Simplification of tetrahedral meshes is an important tool to decrease the complexity of these datasets. Many visualization systems need the simplified version of a mesh to be fully interactive. This paper presents a rapid tetrahedral simplifier that works in three steps. First, the border of the tetrahedral mesh is simplified. Second, the interior of the mesh is point sampled such that the resu...

In order to mimic and better understand the way an earthworm uses its many segments to navigate diverse terrain, this paper describes the design, performance, and sensing capabilities of a new modular soft robotic worm. The robot, Compliant Modular Mesh Worm (CMMWorm), utilizes a compliant mesh actuated at modular segments to create waveforms along its body. These waveforms can generate perista...

An effective discrete element modelling strategy for triangular mesh represented spherical harmonic particles is proposed. It features: (1) using a golden spiral lattice on the unit sphere to generate an initial with any number of vertices/triangles star-shaped surface; (2) applying edge contraction simplification algorithm reduce size desired level; and (3) adopting energy-conserving linear no...

muscle fatigue assessment has been the basis of numerous studies, specifically, in neuromuscular rehabilitation and the applications of fessystems. various emgbased techniques, in time and frequency domains, have been investigatedover years for the detection and evaluationof this phenomenon. the main objective of this study has beento evaluate the efficiency of applying a number of techniques w...

In computer graphics image synthesis algorithms like ray tracing, the mesh complexity decreases the performance of these algorithms. Therefore, the need arises to reduce the complexity of these meshes and at the same time preserving the salient features of the shape. Initial selection of vertices for mesh simplification heavily relates with the quality of the simplified meshes. In this paper, w...

In this paper the complete framework of a software package for real-time animation of 3D facial models according to the MPEG-4 specifications is described. The focus is mainly on the algorithmic solution that has been adopted for scaling the polygon mesh to a level of complexity suited to the specific hw/sw profile of the platform that hosts the decoder. The basic functionality of this system i...

An animal model that allows for assessment of the degree of stretching or contraction of the implant area and the in vivo degradation properties of biological meshes is required to evaluate their performance in vivo. Adult New Zealand rabbits underwent full thickness subtotal unilateral rectus abdominis muscle excision and were reconstructed with the non-biodegradable Peri-Guard®, Prolene® or b...

Discrete exterior calculus (DEC) offers a coordinate-free discretization of exterior calculus especially suited for computations on curved spaces. We present an extended version of DEC on surface meshes formed by general polygons that bypasses the construction of any dual mesh and the need for combinatorial subdivisions. At its core, our approach introduces a polygonal wedge product that is com...

We present a novel two-phase multi-attribute algorithm suitable for large surface mesh simplification. By employing a linear combination of error metrics to control the process, the proposed algorithm incorporates geometric error control and preserves other attributes of the original model such as the texture (vertex color) and surface normal. In the first phase, we utilize the volumesurface tr...

PURPOSE This study was conducted to optimize the interdental design (wraparound) of porcelain laminates bonded to teeth in the presence of preexisting composite fillings. MATERIALS AND METHODS A finite element model (2-dimensional mesh generated from a horizontal cross section of a maxillary incisor) was used to evaluate the effects of luting composite shrinkage and thermal changes on the str...