Smallest element of a digital image to which attributes are assigned.

[data structure] Pixels are the grid cells that make up raster images. Each cell is identical in size and records a brightness and color in an image.

Identifiable part of any space.

Structure which supports a sensor, or sensors.

A device for outputing hard-copy representations of data e.g maps

0-dimensional geometric primitive, representing a position.

Collection of data points in 3D space.

A location (with a fixed position) where one can find a place, product or service, typically identified by name rather than by address and characterized by type, which may be used as a reference point or a target in a location based service request, e.g., as the destination of a route.

procedure to determine which points fall into which polygons; can attach attributes to either the points or the polygons.

Characteristic response of an imaging system to a high-contrast point target.

Restricting radiation, especially light, vibrations to a single plane.

Set of rules related to a particular purpose.

Planar surface defined by 1 exterior boundary and 0 or more interior boundaries.