The interest in automatic volume meshing for finite element analysis (FEA) has grown more since the appearance of microfocus CT (μCT), due to its high resolution, which allows for the assessment of mechanical behavior at a high precision. Nevertheless, the basic meshing approach of generating one hexahedron per voxel produces jagged edges. To prevent this effect, smoothing algorithms have been ...

Voxel models are of increasing interest in 3D computer games, as they give rise to many efficient operations that can not be performed easily on adaptive surface models like triangle meshes. Examples include the efficient generation of level of detail hierarchies and model modifications like carving and extruding. However, to faithfully represent the surface and, thus, to render it in a similar...

Research of virtual surgical operations has advanced in recent years based on virtual reality technology. One basic operation is virtual cutting simulation. In order to realize the virtual cutting, there are two types of research, i.e. using a voxel model and a polygonal model.The voxel model expresses volume and is made by a small cube size. The polygonal model expresses the surface and is con...

objectives: this study sought to assess the diagnostic accuracy of cone beam computed tomography (cbct) with different voxel sizes and intraoral digital radiography with photostimulable phosphor (psp) plate for detection of periapical (pa) bone lesions. materials and methods: in this ex vivo diagnostic study, one-millimeter defects were created in the alveolar sockets of 15 bone blocks, each wi...

The appearance of new Multiple Sclerosis (MS) lesions on MRI is usually followed by subsequent partial resolution, where portions of the newly formed lesion return to isointensity. This resolution is thought to be due mostly to reabsorption of edema, but may also reflect other reparatory processes such as remyelination. Automatic identification of resolving portions of new lesions can provide a...

This study investigated the implications of different assumptions 3D forest stand reconstructions for accuracy and efficiency radiative transfer (RT) modeling based on two highly detailed representations: 3D-explicit voxel-based. The discrete anisotropic (DART) model was used RT simulations. voxel-based scenes were as structural inputs DART model, respectively. Using simulation benchmark, evalu...

Voxel based modeling is a very attractive way to represent complex multi-material objects. Beside artistic choices of pixel/voxel arts, representing objects as voxels allows efficient and dynamic interactions with the scene. For geometry processing purposes, many applications in material sciences, medical imaging or numerical simulation rely on regular partitioning space labeled voxels. In this...

We present a framework for computer aided detection and diagnosis based on segmented tissue mixtures in each voxel of the image. Detection is based on both the geometry and texture. Diagnosis is based on both the texture and feature extracted from the mixture segmentation.