Practice Determination of Height from Vertical Aerial Photographs - 4.12 | 4. Relief Displacement of a Vertical Photograph | Surveying and Geomatics
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Knowledge

4.12 - Determination of Height from Vertical Aerial Photographs

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a stereo-pair?

💡 Hint: Think about how we perceive depth using two eyes.

Question 2

Easy

Define parallax.

💡 Hint: Consider how you see objects from different positions.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary purpose of using a parallax bar in aerial photography?

  • To measure distances
  • To determine parallax differences
  • To enhance image quality

💡 Hint: Think about what it measures during the stereo image process.

Question 2

True or False: A higher elevation results in a smaller parallax measurement.

  • True
  • False

💡 Hint: Consider the relationship between height and parallax.

Solve 3 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a known control point with an elevation of 100m, you measure a parallax difference of 8 mm at two points. Calculate the estimated height of the unknown point using heights and parallax relations.

💡 Hint: Look closely at the formula relating height and parallax before plugging values in!

Question 2

If a photographer captures stereo-pairs with a tilt that you suspect may influence parallax measurements, outline how you can mitigate these errors.

💡 Hint: What adjustments could you make to account for tilt in your measurements?

Challenge and get performance evaluation