8.15. Accuracy and Error Sources in Photogrammetry

Try these first

1. 1.

   What is meant by 'systematic error'?

   Hint

   Think about errors that can be corrected.

2. 2.

   Can you give an example of a random error?

   Hint

   Consider environmental conditions.

3. 3.

   What type of error is a lens distortion classified as?

   • Systematic
   • Random
   • Blunder

   Hint

   Think about error types that can be fixed.

4. 4.

   True or False: Random errors are easily predictable and correctable.

   • True
   • False

   Hint

   Reflect on the characteristics of random errors.

5. 5.

   Consider a scenario where systematic errors are present in a photogrammetric project. Discuss how you would identify and address these errors.

   Hint

   Look for the predictable factors influencing your measurements.

6. 6.

   Evaluate the impact of a poorly distributed set of Ground Control Points on accuracy and propose a strategy to improve control point placement.

   Hint

   Think about how your control points create a framework for accuracy.