18.6.1. Structure from Motion (SfM)

Try these first

1. 1.

   What does SfM stand for?

   Hint

   What is the first word in the acronym?

2. 2.

   Name one tool commonly used for SfM processing.

   Hint

   Think of the software you’ve heard in class.

3. 3.

   What does Structure from Motion help create?

   • 2D images
   • Point clouds
   • Maps

   Hint

   Think of the transition from 2D to 3D.

4. 4.

   True or False: Orthophotos produced from SfM are scaled and distortion-free.

   • True
   • False

   Hint

   Consider what orthophotos are used for.

5. 5.

   Design a step-by-step workflow for a real estate project using SfM. How would you ensure data quality?

   Hint

   Think about how to ensure you cover the area properly.

6. 6.

   Analyze the cost-benefit of adopting SfM technology over traditional surveying in a civil engineering project.

   Hint

   Consider both the initial investment and long-term savings.