8.1.1. Central Projection

Try these first

1. 1.

   What is central projection?

   Hint

   Think about how a camera lens works.

2. 2.

   Why are geometric distortions a concern in photogrammetry?

   Hint

   Consider the view changes when you move closer or further from an object.

3. 3.

   True or False: Central projection always guarantees accurate measurements without any corrections.

   • True
   • False

   Hint

   Consider if you'd trust a skewed photograph.

4. 4.

   In photogrammetry, what are geometric distortions?

   Hint

   Think about viewing something from different angles.

5. 5.

   A photographer captures a building using central projection but realizes that the edges look distorted. Describe how they can use corrections to enhance the accuracy of their photographs.

   Hint

   Think about the dialogue we've had regarding correcting distortions.

6. 6.

   Explain the potential impact of ignoring geometric distortions in photogrammetry for large scale mapping.

   Hint

   Consider the consequences of inaccuracies in critical applications like construction.