4.8.17. Conjugate principal point (CPP)

Try these first

1. 1.

   What is the CPP?

   Hint

   Think about photo alignment.

2. 2.

   Where is the principal point located in a photograph?

   Hint

   Remember the concept of balance in a photo.

3. 3.

   What does CPP stand for in photogrammetry?

   • Central Photographic Point
   • Conjugate Principal Point
   • Calculated Photo Projection

   Hint

   Think about the importance of connection in photography.

4. 4.

   True or False: The principal point is the only point of reference in aerial photographs.

   • True
   • False

   Hint

   Consider the multiple dimensions in a photograph.

5. 5.

   Given a set of two aerial photographs, explain how you would determine the CPP and what features you need to check.

   Hint

   Sketching out a diagram might help visualize this.

6. 6.

   Discuss the potential technological advancements that might aid in improving the accuracy of CPP transfers.

   Hint

   Consider how tools have evolved in other fields to improve efficiency.