Practice Example 4.9 (5.1.9) - Graphical Radial Triangulation

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6 sample questions

Question 1.
What does GCP stand for in aerial mapping?
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Remember the reference points used in geo-referencing.
Question 2.
Why are lateral control points important?
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Consider their positioning in overlaps.
3Question 3.
What is the purpose of Ground Control Points (GCP) in aerial mapping?
- A) To determine the color of photographs
- B) To geo-reference aerial images
- C) To adjust brightness of image
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Think of their purpose in relation to accuracy.
4Question 4.
True or False: Minor Control Points (MCP) are selected at random.
- True
- False
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Remember the purpose of these points.
Question 5.
Aerial photographs were taken with a camera having a 25 cm focal length at a height of 1500m. If the ground elevation is 100m, calculate the scale of the photograph.
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Use the formula for scale calculation.
Question 6.
Discuss the differences between block and strip triangulation and how these methods affect the overall accuracy in aerial mapping.
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Focus on the internal strengths and computational advantages.

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