8.1. Principles of Photogrammetry

Try these first

1. 1.

   What is photogrammetry?

   Hint

   Think about how we use images for information.

2. 2.

   What happens in central projection?

   Hint

   Recall the role of the lens.

3. 3.

   What is the main focus of photogrammetry?

   • Extracting information from sound
   • Recording and interpreting photos
   • Designing buildings

   Hint

   Think about how we gather information through visuals.

4. 4.

   Is the central projection concept essential for accurate measurements in photogrammetry?

   • True
   • False

   Hint

   Consider how perspective influences accuracy.

5. 5.

   Given a scenario where an image is distorted, outline the steps to correct the geometric distortions for accurate photogrammetric results.

   Hint

   Consider the relationship between the image point and actual object.

6. 6.

   You capture images of an object but realize that data collinearity is misaligned. Describe how you would apply collinearity equations to rectify the positions.

   Hint

   Think about the formulas and mapping techniques.