Practice Satellite Image Processing (3) - Satellite Image Processing

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a passive sensor?
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Think about sensors that use sunlight.
Question 2.
Give one example of an active sensor.
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These sensors emit their own signals.
3Question 3.
What is the main function of passive sensors?
- Emit their own signals
- Use natural radiation
- Enhance existing images
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Think about what kind of light they need.
4Question 4.
True or False: Active sensors require training data.
- True
- False
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Focus on whether they receive signals or emit them.
Question 5.
How would you explain the importance of preprocessing satellite images before analysis to a group of environmental scientists?
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Consider why accuracy matters in scientific studies.
Question 6.
In what situations would you recommend using an active sensor over a passive sensor for rural land surveys?
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Think about visibility issues in different weather.

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