Editing Scientific visualization (section)

=== Volume rendering ===
[[Volume rendering]] is a technique used to display a 2D projection of a 3D discretely [[Sampling (signal processing)|sampled]] [[data set]]. A typical 3D data set is a group of 2D slice images acquired by a [[computed axial tomography|CT]] or [[magnetic resonance imaging|MRI]] scanner. Usually these are acquired in a regular pattern (e.g., one slice every millimeter) and usually have a regular number of image [[pixel]]s in a regular pattern. 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.