4.14.2. Orientation parameters

Try these first

1. 1.

   What are the six orientation parameters?

   Hint

   Think about how the camera is both positioned and angled.

2. 2.

   What role do ground control points play in aerial photogrammetry?

   Hint

   Consider why you'd need a benchmark in shooting a photo.

3. 3.

   What are the six orientation parameters essential for aerial photographs?

   • dx
   • dy
   • dz
   • ω
   • φ
   • κ
   • x
   • y
   • z
   • α
   • β
   • λ
   • a
   • b
   • c
   • x
   • y
   • z

   Hint

   Recall the abbreviation for the coordinate positions and angles.

4. 4.

   True or False: The minimum number of ground control points needed is two.

   • True
   • False

   Hint

   Think of the balance needed in mapping techniques.

5. 5.

   Describe how the accuracy of ground control points affects the orientation parameters in aerial photogrammetry.

   Hint

   Consider how each point serves as a guide for your camera's positioning.

6. 6.

   If four ground control points were used in the aerial triangulation but only three were correctly positioned, discuss the expected outcomes.

   Hint

   Reflect on the stability of foundational points in a structure.