4. Examples

Try these first

1. 1.

   What is longitudinal overlap in aerial photography?

   Hint

   Think about how photographs are taken one after the other.

2. 2.

   Define relief displacement.

   Hint

   Consider how height affects the image of an object.

3. 3.

   What does longitudinal overlap refer to in aerial photography?

   • Overlap in width
   • Overlap lengthwise
   • No overlap

   Hint

   Think about how photographs are placed sequentially.

4. 4.

   True or False: Relief displacement is not affected by the height of the object.

   • True
   • False

   Hint

   Reflect on how height influences image perception.

5. 5.

   Given a terrain elevation of 800 m and a photograph taken at a height of 2500 m. The diameter of the lens is 20 cm. Calculate the perspective distortion on a tree 50 m tall.

   Hint

   Structure your calculations based on stated elevations.

6. 6.

   If a photograph image size is 60 mm from top to bottom, and the object height is 45 m in a vertical photo, what is the scale of the photograph?

   Hint

   Recall the size relationship approaches.