GIS Dictionary

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IFSAR

[remote sensing] Acronym for interferometric synthetic aperture radar. A dual-antenna radar sensor mounted on an airborne or space-borne platform that […]

illumination

[cartography] The light incident on a surface or object, either natural or artificial, as determined by the surface’s slope and

image

1 [data capture] A representation or description of a scene, typically produced by an optical or electronic device, such as

image coordinate

[data structures] An x,y coordinate pair specifying the location of a pixel, or cell, in terms of its row and

image data

[data capture] Data produced by scanning a surface with an optical or electronic device. Common examples include scanned documents, remotely

image division

A digital image processing technique for increasing the contrast between features in an image by dividing the pixel values in

image scale

[data capture] The ratio between a distance in an image and the actual distance on the ground, calculated as focal

image server

1 [ESRI software] In ArcGIS Server, an extension. 2 [ESRI software] In ArcIMS, a public ArcIMS virtual server for image

image service

1 [ESRI software] In ArcIMS, a service that uses the spatial server image rendering capabilities. When a request is received,

image service definition

[ESRI software] In ArcGIS Image Server, a workspace created using the Image Service Definition Editor toolbar that defines the key

image service reference file

[ESRI software] In ArcGIS Image Server, a file that stores properties for reestablishing a connection to a service and setting

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