1. Course: Introduction to RS & DIP
Remote sensing system
Mirza Muhammad Waqar
Contact:
EXT:2257
RG610
Course: Introduction to RS & DIP

2. Outlines Remote Sensing System An ideal Remote Sensing System
The Energy Source
The Atmosphere
The Energy-Matter Interaction at the Earth’s Surface
The Sensor
The data processing and supply system
The multiple data users
An ideal Remote Sensing System

3. Remote Sensing & Satellite Image Processing

4. The Energy Source Active Remote Sensing => Own source of energy
Passive Remote Sensing => Sun Energy
Solar energy level varies w.r.t time and location.
For active remote sensing => Control on illumination.
Sun energy is non-uniform w.r.t wavelength.

5. The Atmosphere
The atmosphere normally compounds the problems introduced by energy source variations.
Modify the strength and spectral distribution received by the sensor.
Define the wavelength ranges in which we can do remote sensing.

6. Energy-Matter Interaction at Earth Surface
Remote Sensing would be simple if every material reflected or emitted energy in a unique, known way.

7. The Sensor No single sensor is sensitive to all wavelength.
Ideal supersensor
How small an object on the earth can be seen.
Spatial Resolution
All real sensors have fixed limits of spectral sensitivity.

8. Data Processing & Supply Unit
Manual Image Processing
Digital Image Processing

9. Multiple Data Users Urban Planner Policy Makers Engineers
Environmentalists
Glaciologists

10. An Ideal Remote Sensing System
A Uniform Energy Source
A noninterfering Atmosphere
A Series of unique energy-matter interaction at Earth’s surface
A supersensor
A real Time data Processing and Supply System
Multiple data users

11. An Ideal Remote Sensing System

12. Questions & Discussion