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.

2. Types of Sensor:
Passive sensors
active sensors

3. Electro-Magnetic Radiation
The characteristics of an object can be determined, using reflected or emitted electro-magnetic radiation, from the object
Interactions between Matter and Electro-magnetic Radiation
-absorption
-penetrate
-reflection
The sunlight's transmission through the atmosphere is affected by absorption and scattering of atmospheric molecules and aerosols

4. Images Processed by NCC (National Cartographic Centre of IRAN)
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)

5. Resolution:
Spectral
Spatial
Radiometric
Temporal

6. Applications of Remote Sensing
Lineament Extraction
Interpretation
Height Measurement (DEM Generation)
Land Cover Classification
……..

7. Satellites:
Quickbird
Ikonos

8. Georeferencing & Drawing:
1- ArcGIS
2- AutoDesk Map

9. Adding Image to ArcGIS:

10. Georeferencing:

12. Start Editing & Drawing features:

13. Rubber Sheeting in Autodesk MAP:

14. Drawing features:

15. Problems: Narrow alleys were not apparent clearly and needed to go under field control.

16. Result: updating the maps of 140 cities
Result: updating the maps of 140 cities. (Total covered area about hectares)