Voxel
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voxel
See Also: pixel
[graphics (computing)] A three-dimensional pixel used to display and rotate three-dimensional images.
[edit] Voxel data
a data set of voxels for a macromolecule
A voxel represents the sub-volume box with constant scalar/vector value inside which is equal to scalar/vector value of the corresponding grid/pixel of the original discrete ...
3D Raster (voxel) import
The module r3.in.ascii supports generic x,y,z import. Alternatively, voxels are be interpolated from 3D point clouds as transformed from 3D point vector data (v.to.rast3). Always the full map is imported.
Voxel
Selected GIS additionally support the voxel data model. A voxel (a portmanteau of the words volumetric and pixel) is a volume element, representing a value on a regular grid in three dimensional space.
The Tomographic Voxel Model. Separate slant delays only provide integrated measures of the tropospheric refractivity--a one-dimensional view, if you like. To get the three-dimensional structure of refractivity, we need a different approach.
The first commonly used 3D spatial data model was the extension of the raster model, the so called voxel model. The basic element of the model is the cube that can be divided or aggregated limitless into similar smaller or larger cubes.
The result is a coordinate system of columns (X), rows (Y), and verticals (Z) defining an imaginary matrix of grid elements, or "voxels," that are a direct conceptual extension of the "pixels" in a 2D raster image.
The raster solutions are mostly based around the voxel, which in not necessarily cubic, as a basic unit. Many authors [POI78] [FLO82] have shown the advantages of terrain modelling based on TINs.
digital volume -- a three-dimensional array of regularly spaced volume elements (voxels) constituting a volume.
domain -- in the definition of the elements in the metadata standard, the domain identifies valid values for a data element.
areas that have seen relatively little work in archaeology although the early paper on archaeology, time and GIS by Castleford (1992) is still important and Harris and Lock (1996) demonstrate the potential of fully functional 3D GIS using a voxel ...
 See also: Raster, Analysis, Model, GIS, Image
  
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