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Iran_RS_Presentation.ppt
1. Remote Sensing
Remote Sensing is defined as the science and
technology by which the characteristics of objects
of interest can be identified, measured or analyzed
the characteristics without direct contact.
3. The characteristics of an object can be determined, using reflected or emitted
electro-magnetic radiation, from the object
Electro-Magnetic Radiation
The sunlight's transmission through the atmosphere is affected by absorption
and scattering of atmospheric molecules and aerosols
Interactions between Matter and
Electro-magnetic Radiation
-absorption
-penetrate
-reflection
4. Image Processing - Correction
Radiometric correction
Atmospheric correction
Geometric distortions of the image
Geometric correction
Coordinate transformation
Collinearity equation
Resampling and interpolation
Map projection
Images Processed by NCC (National Cartographic Centre of IRAN)