18.6. Photogrammetry and Data Processing

Try these first

1. 1.

   What does photogrammetry do?

   Hint

   Think about converting pictures into a detailed shape.

2. 2.

   Define an orthophoto.

   Hint

   You might recall it corrects distortions!

3. 3.

   What is the primary function of Structure from Motion?

   • Create 3D models
   • Capture 2D images
   • Analyze terrain

   Hint

   Focus on what this process ultimately produces.

4. 4.

   True or False: A Digital Terrain Model (DTM) includes buildings.

   • True
   • False

   Hint

   Think about what kind of features you find in a DTM.

5. 5.

   Design a scenario where a DTM could significantly influence a construction project. Include potential consequences of not using one.

   Hint

   Think about how elevation might impact building stability or infrastructure planning.

6. 6.

   Evaluate the impact of inaccuracies in an orthophoto on transportation planning by providing examples.

   Hint

   Consider how precision affects accessibility and travel efficiency.