Practice Height determination - 4.12.4 | 4. Relief Displacement of a Vertical Photograph | Surveying and Geomatics
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4.12.4 - Height determination

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is parallax?

💡 Hint: Think about how your point of view changes when you move.

Question 2

Easy

How can height be approximately calculated?

💡 Hint: Recall the process of comparing the images.

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 stereo pair in aerial photographs?

  • To enhance image quality
  • To determine height and depth
  • To improve color accuracy

💡 Hint: Think about what we can determine from the perspective capability of two images.

Question 2

True or False: The height of an object is inversely proportional to the flying height.

  • True
  • False

💡 Hint: What happens to the displacement when flying higher?

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the height of point C if the known elevation of point A is 70 m, the parallax difference (Δp) is 10 mm, and the flying height is 300 m.

💡 Hint: Use the given equation and break down the calculation step by step.

Question 2

Aerial photographs are captured with a known air base of 1000 m. If the estimated parallax difference is calculated to be 8 mm, derive the approximate height of the object if the flying height was 400 m.

💡 Hint: Ensure you understand how air base and flying height affect parallax.

Challenge and get performance evaluation