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The remote sensing is called as ?Remote Detection? in Japanese and, particularly for natural recourses explorations, it is technology for photographing and measuring an earth's surface by the sensor loaded in airplane, artificial satellite, etc. for understanding the state of the surface.

The artificial satellites used for exploration of natural resources are earth observation satellites such as ALOS "DAICHI" and ASTER (both are domestic product), LANDSAT (from U.S.A.), and SPOT (from France), etc.

By processing and analyzing data obtained by the sensors loaded in these satellites, the information about the geology of earth's surface, geographical feature, vegetation, soil, surface water, etc. can be obtained. The sensors are classified into passive type and active type.

Optical sensor

A typical passive type sensor is optical sensor. The optical sensor detects from wavelength region of visible light (visible region) to mach longer wave length regions such as infra-red regions, short wave infra-red regions and thermal infra-red region of heat radiation, and acquire these as image data.

Substances on surface of the earth, such as soils, plants, rocks, etc. response to specific region of wavelength and give characteristics spectrum. The substance of the earth's surface can be specified using the spectrum.

Radar

A typical active type sensor is radar.
The radar irradiates electromagnetic waves (electric wave) of specific wavelength regions to the earth's surface. The imagery is produced by acquiring signal returned to the sensor by scattering on the earth's surface.

The radar can correctly identify the time differences of signals to return back to the satellite in addition to characteristic signals of the wave of (phase). By using this, features of surface such as topography and roughness can be identified.

Services to offer

Contents of Service	Software and devices
Producing various sensor images (Optical sensor, synthetic aperture radar)	ERDAS IMAGINE (produced by Leica Geosystems) ENVI (produced by ITT)
Processing various image data (Statistical processing, spectral processing, polarized processing, etc.)	ERDAS IMAGINE ENVI
Interpretation and analysis of various image data (Geology and ore deposit, topographical feature, forests, lands, disaster prevention, etc.)	ERDAS IMAGINE ENVI ArcGIS (produced by ESRI)
Spectrum measurement of various samples (Rock, minerals, drilling cores, etc.)	Field portable spectral meter PIMA II, (produced by Integrated Spectronics)