Question

1. [10] You are using a camera with a pixel resolution of 6640x4220, and a sensor size of 33 mm by 21 mm and a 50mm focal length.

• What is the camera sensor pixel size?
• What is the Ground Sample Distance (GSD, ground pixel size) when flying at 100 m AGL?
• What is the ground footprint or image ground size/extent?
• If you are flying at 5 m/s and desire a 75% overlap along track, how often you need to take photos?
• If you desire a 50% across track overlap how spaced should the flight lines be?

Answer 1