Remote sensing

Acquiring information about an object or phenomenon, by using equipment that is either wireless, or not in physical contact with the object or phenomenon itself. This data is then processed and analysed using computer software, known as a remote sensing application.

These techniques can include the use of satellite-based sensors or digital cameras on an aerial platform.

Passive sensors detect natural radiation emitted or reflected by the object or phenomenon – usually reflected sunlight. Examples include film photography and the use of infrared imaging.

Active sensors emit energy to scan the object or phenomenon and measure the radiation that is reflected. An example of this is RADAR.

Remote sensing can be used to monitor meteorological data, produce digital elevation models and topographic maps, and take aerial photographs. It is often used in geo-referencing.

Advantages of remote sensing include the fact that it allows data capture from dangerous or inaccessible areas, and ensures that areas and objects are not disturbed in the process.

Related methods include: Geophysical survey and Geo-referencing and projection.

tool: ERDAS Imagine

ERDAS Imagine is a suite of geospatial authoring software. The suite contains a raster graphics editor and remote sensing application that performs advanced remote sensing analysis and spatial modelling to create new information. ERDAS IMAGINE can also visualize results in 2D, 3D, movies, and on cartographic quality map compositions.
Methods relating to this toolCategory
2d illustrationPractice-led research
2d modelling - rasterData structuring and enhancement
2d modelling - vectorData structuring and enhancement
3d modelling - interactiveData structuring and enhancement
3d modelling - vectorData structuring and enhancement
3d modelling - vectorPractice-led research
AnimationData structuring and enhancement
Content analysisData analysis
Desktop publishing and pre-pressData publishing and dissemination
DocumentationStrategy and project management
Geo-referencing and projectionData structuring and enhancement
GPS and total station surveysData capture
Human factors analysisStrategy and project management
OverlayingData analysis
Remote sensingData capture
Resource sharingCommunication and collaboration
Statistical analysisData analysis
Video-based interaction (asynchronous)Communication and collaboration
VisualisationData analysis
Alternate tool(s):

SPRING, Virtual Terrain Project (VTP),

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