4 Terms
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Remote sensing
The process of using aerial sensor technologies to detect and classify objects on Earth both on the surface, and in the atmosphere and oceans by means of propagated signals.
Industry: Earth science
Add a new termContributors in Remote sensing
Remote sensing
Achromatic vision
Earth science; Remote sensing
The perception by the human eye of changes in brightness, often used to describe the perception of monochrome or black and white scenes.
Pass
Earth science; Remote sensing
In digital filters, refers to the spatial frequency of data transmitted by the filter. High-pass philtres transmit high-frequency data; low-pass philtres transmit low-frequency data.
Scattering
Earth science; Remote sensing
Multiple reflections of electromagnetic waves by particles or surfaces.
Gemini
Earth science; Remote sensing
U. S. programme of two-man earth-orbiting spacecraft in 1965 and 1966.
Density slicing
Earth science; Remote sensing
Process of converting the continuous grey tones of an image into a series of density intervals, or slices, each corresponding to a specific digital range. The density slices are then displayed ...
Orthophotograph
Earth science; Remote sensing
A vertical aerial photograph from which the distortions due to varying elevation, tilt, and surface topography have been removed, so that it represents every object as if viewed directly from above.
Active remote sensing
Earth science; Remote sensing
Remote sensing methods that provide their own source of electromagnetic radiation to illuminate the terrain. Radar is one example.
