8.3.3. Relief Displacement

Try these first

1. 1.

   What does relief displacement refer to?

   Hint

   Think about how height affects where an object appears in a photo.

2. 2.

   What is the principle point in an aerial photograph?

   Hint

   Consider where the camera is focused when the picture is taken.

3. 3.

   What is relief displacement?

   • A change in color in photographs
   • Displacement due to elevation differences
   • The type of camera used

   Hint

   Focus on how height impacts imagery.

4. 4.

   True or False: Higher objects in an aerial photograph appear closer to the principal point.

   • True
   • False

   Hint

   Consider the relationship between height and distance.

5. 5.

   You are given an aerial photograph showing a forested area with hills. Calculate the relief displacement of trees at an elevation of 100 meters compared to those at 50 meters using the principal point methodology.

   Hint

   Consider how tension between height and distance creates displacement.

6. 6.

   Describe a scenario where not addressing relief displacement leads to substantial issues in a civil engineering project.

   Hint

   Think about the importance of accuracy in construction and urban planning.