Practice Image Acquisition And Preprocessing (3.2)

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10 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is radiometric correction?
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Think about adjusting brightness values.
Question 2.
Name one technique used in noise reduction.
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Consider what type of filter can smooth data.
3Question 3.
What is the main purpose of radiometric correction?
- To remove atmospheric interference
- To convert raw DN into calibrated reflectance
- To align images geographically
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Think of what you calibrate to make the data usable.
4Question 4.
True or False: Geometric correction uses Ground Control Points (GCPs) to align images.
- True
- False
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Recall how coordinates are matched.
Question 5.
Design a preprocessing workflow for a satellite image intended for agricultural studies, outlining which corrections to apply and why.
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What specific challenges does agricultural imagery face?
Question 6.
Considering different atmospheric conditions, evaluate how they might impact the necessity of atmospheric correction in satellite imagery.
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How do environmental factors interfere with light during image capture?

6 more questions in this section. Enroll free to practise them all.