Remote sensing

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

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Remote sensing

ground-range image

Earth science; Remote sensing

Radar image in which the scale in the range direction is constant.

remote sensing

Earth science; Remote sensing

Collection and interpretation of information about an object without being in physical contact with the object.

cut off

Earth science; Remote sensing

The digital number in the histogram of a digital image which is set to zero during contrast stretching. Usually this is a value below which atmospheric scattering makes a major contribution.

photopic vision

Earth science; Remote sensing

Vision under conditions of bright illumination.

additive primary colors

Earth science; Remote sensing

Blue, green, and red. Filters of these colors transmit the primary color of the filter and absorb the other two colors.

shuttle multispectral infrared radiometer (SMIRR)

Earth science; Remote sensing

A non-imaging spectroradiometer carried by the NASA Space Shuttle covering ten narrow wavebands in the 0. 5-2. 4 m range.

Describes a radar pulse in which the polarization direction of the return is normal to the polarization direction of the transmission. Cross-polarized images may be HV (horizontal transmit, vertical ...