Preprocessing in remote sensing
12 important questions on Preprocessing in remote sensing
Whereto aims image rectification and restoration?
What are typical preprocessing operations?
- Geometric preprocessing to bring an image into registration with a map or another image
What are internal errors?
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What are external errors?
What are the most common preprocessing steps to account for external errors in remotely sensed imagery?
- Geometrical correction
What are the pathways in which electromagnetic energy or light from the sun reaches the sensor?
- Skylight
- Air light
By which factors is the radiance measured by a sensor for a specific object on earth influenced?
- Atmospheric condition
- Viewing geometry
- Instrument response charasteristics
How can you rduce the influences of the above mentioned aspects?
What is image noise?
What is rayleigh scattering?
What is mie scattering?
What is non-selective scattering?
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