Search results
Results from the WOW.Com Content Network
A voxel is a three-dimensional counterpart to a pixel.It represents a value on a regular grid in a three-dimensional space.Voxels are frequently used in the visualization and analysis of medical and scientific data (e.g. geographic information systems (GIS)). [1]
Optical format is a hypothetical measurement approximately 50% larger than the true diagonal size of a solid-state photo sensor.The use of the optical format means that a lens used with a particular size sensor will have approximately the same angle of view as if it were to be used with an equivalent-sized video camera tube (an "old-fashioned" TV camera).
An example of a commercially available Swept-volume display is the Voxon VX1 from Voxon Photonics. This display has a volume area that is 18 cm × 18 cm × 8 cm (7.1 in × 7.1 in × 3.1 in) deep and can render up to 500 million voxels per second.
For example, if the image of a ship of length 50 metres (160 ft), viewed side-on, is 500 pixels long, the nominal resolution (pixel size) on the side of the ship facing the camera is 0.1 metres (3.9 in). Now sub-pixel resolution of well resolved features can measure ship movements which are an order of magnitude (10×) smaller.
This is an example of a regular volumetric grid, with each volume element, or voxel represented by a single value that is obtained by sampling the immediate area surrounding the voxel. To render a 2D projection of the 3D data set, one first needs to define a camera in space relative to the volume.
Neighborhood Size: Connectivity Type Typical Vector: Sphere Radius: d. Elements on Sphere: E. Elements in Sphere: V. Neighborhood Connectivity: G. 1 edge (0) √ 0: 1 × 1 = 1 : 1
Voronoi polygons for a group of texels. In computer graphics, a texel, texture element, or texture pixel is the fundamental unit of a texture map. [1] Textures are represented by arrays of texels representing the texture space, just as other images are represented by arrays of pixels.
Tracing a ray through a voxel grid. The voxels which are traversed in addition to those selected using a standard 8-connected algorithm are shown hatched. Voxel Grid. In this filtering technique input space is sampled using a grid of 3D voxels to reduce the number of points. [40] For each voxel, a centroid is chosen as the representative of all ...