8.6.3. Relative and Absolute Orientation

Try these first

1. 1.

   What is the purpose of relative orientation in photogrammetry?

   Hint

   Think about why depth perception is important.

2. 2.

   What does absolute orientation aim to achieve?

   Hint

   Consider how this relates to physical maps.

3. 3.

   What is the main purpose of relative orientation in photogrammetry?

   • To create GCPs
   • To align stereo images
   • To generate 3D models

   Hint

   Remember how stereo pairs create depth.

4. 4.

   True or False: Absolute orientation involves scaling the model to fit real-world coordinates.

   • True
   • False

   Hint

   Think about the relationship of virtual models to physical maps.

5. 5.

   Given a stereo pair of aerial images with known tie points, how would you approach aligning them using relative orientation?

   Hint

   Focus on the fundamental principles of perspective geometry.

6. 6.

   If the ground control points used for absolute orientation are inaccurate, what kind of errors might occur in resulting geospatial data?

   Hint

   Think about how precision in GPS systems can affect navigation.