13.6. Network Adjustment Techniques

Try these first

1. 1.

   What is free network adjustment?

   Hint

   Think about what kind of constraints might be involved.

2. 2.

   What is a tie-point?

   Hint

   Consider the role of this point in linking images.

3. 3.

   What is the main purpose of network adjustment techniques?

   • To make measurements before taking them
   • To reduce errors in collected measurements
   • To collect data without constraints

   Hint

   Think about why we want to ensure accurate measurements.

4. 4.

   True or False: Block adjustment adjusts images that do not overlap.

   • True
   • False

   Hint

   Think about how overlapping images relate in photogrammetry.

5. 5.

   You are conducting an aerial survey of a newly developed area with multiple overlapping images. Explain how you would apply block adjustment to ensure accuracy.

   Hint

   Think about the relationship between images and how they connect.

6. 6.

   Consider a scenario where you need to start a survey in an area with no established control points. Discuss the pros and cons of using free network adjustment in this case.

   Hint

   Reflect on both the opportunities and limitations of working without constraints.