Practice Measurement Of Absolute Parallax (4.12.3) - Relief Displacement of a Vertical Photograph

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9 questions

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6 sample questions

Question 1.
Define absolute parallax in your own words.
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Think about how it relates to distances.
Question 2.
What instrument is often used to measure parallax in photographs?
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Consider the tools used in photogrammetry.
3Question 3.
What is absolute parallax?
- A measurement of height
- The difference in distances from principal points
- A type of camera
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Focus on what defines this term in aerial photography.
4Question 4.
True or False: Absolute parallax is only defined for vertical photographs.
- True
- False
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Remember the general definition of parallax.
Question 5.
If point A is 15 mm away from the principal point on the left photo and point B is 40 mm away on the right, what is the absolute parallax?
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Pay attention to the distances and their signs.
Question 6.
Discuss how you would theoretically improve the accuracy of height determination from parallax measurements.
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Explore methods used in photogrammetry to ensure precision.

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