remote sensing remote sensing is defined as the science and technology by which the characteristics...
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Remote SensingRemote 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.
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.
Types of Sensor: Types of Sensor:
Passive sensors
active sensors
Passive sensors
active sensors
The characteristics of an object can be determined, using reflected or emitted electro-magnetic radiation, from the object
Electro-Magnetic RadiationElectro-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
Image Processing - CorrectionImage Processing - Correction
Radiometric correctionAtmospheric correction Geometric distortions of the image Geometric correction Coordinate transformation Collinearity equation Resampling and interpolation Map projection
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)
Resolution:Resolution:
Spectral
Spatial
Radiometric
Temporal
Spectral
Spatial
Radiometric
Temporal
Applications of Remote Sensing Applications of Remote Sensing
Lineament Extraction
Interpretation
Height Measurement (DEM Generation)
Land Cover Classification
..……
Lineament Extraction
Interpretation
Height Measurement (DEM Generation)
Land Cover Classification
..……
IkonosIkonos
QuickbirdQuickbird
Satellites:Satellites:
1 -ArcGIS 1 -ArcGIS
2 -AutoDesk Map 2 -AutoDesk Map
Georeferencing & Drawing:Georeferencing & Drawing:
Adding Image to ArcGIS:Adding Image to ArcGIS:
Georeferencing:Georeferencing:
Start Editing & Drawing features:Start Editing & Drawing features:
Rubber Sheeting in Autodesk MAP:Rubber Sheeting in Autodesk MAP:
Drawing features: Drawing features:
Problems: Narrow alleys were not apparent clearly and needed to go under
field control.
Problems Narrow alleys were not : apparent clearly and needed to go under
field control.
Result: updating the maps of 140 cities. (Total covered area about 65000 hectares)
Result: updating the maps of 140 cities. (Total covered area about 65000 hectares)