Chapter 9 — Exam Question 3

For a transformation of a specific image into a specific coordinate system, an total error
of two pixels is given. What additional information do you need to assess the ’quality’
of the transformation?

Answer

1. The number of GCP points that are used to define the transformation.

2. The distribution of the GCP points.

3. The type of the transformation.

4. The basic geometry of the image.

5. The residuals of the GCPs.

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