A voxel (a portmanteau of the words volumetric and pixel)'s a volume element, representing a value on a regular grid in three dimensional space. This's analogous to a pixel, which represents 2D image data. Voxels are frequently used in the visualization and analysis of medical and scientific data. Some volumetric displays use voxels to describe their resolution. For example, a display might be able to show 512×512×512 voxels. As with pixels, voxels themselves typically don't contain… (More on Voxel)