4.11.2. Requirements of a stereoscopic vision

Try these first

1. 1.

   What is the minimum overlap percentage required for two photographs in a stereo pair?

   Hint

   Look for the percentage agreed upon in photogrammetry basics.

2. 2.

   Why is consistent exposure important in stereo photography?

   Hint

   Think about how differences in lighting can affect two images.

3. 3.

   What is the minimum overlap percentage required between two stereo photographs?

   • 40%
   • 50%
   • 60%
   • 70%

   Hint

   It's a common requirement in photogrammetric techniques.

4. 4.

   True or False: The scale of both photographs must differ to provide contrasting details.

   • True
   • False

   Hint

   Think about how difference in scale would affect interpretation.

5. 5.

   You have two stereo photographs, one with a 60% overlap and the other with a 40% overlap. Discuss the limitations of the second pair concerning depth perception.

   Hint

   Reflect on the importance of overlap in visual perception.

6. 6.

   Calculate the base-to-height ratio if the base is 10 meters, and the height is 4 meters. Discuss how this ratio is suitable for stereo photographs.

   Hint

   Use the formula to determine if the ratio stays within acceptable limits.