Question

_____ photography is a technique to make two photographs of the same subject, from slightly different positions.

• A. Vertical
• B. Stereo
• C. Oblique
• D. Digital

Hint:

"Stereo" implies two (like stereo audio with left/right speakers). Stereo vision uses two slightly different images to see 3D!

Answer 1

The Correct Option is B

Step 1: Concept
In aerial photography and photogrammetry, calculating depth, height, or 3D structure requires specific camera setups.

Step 2: Meaning
Taking two images of the same area from slightly offset angles mimics human binocular vision, allowing for depth perception.

Step 3: Analysis

• Vertical photography points the camera straight down to the ground.
• Oblique photography points the camera at an angle to capture perspective.
• Stereo photography (or stereoscopy) intentionally overlaps two images taken from different positions to create a 3D model (stereo pair).

Step 4: Conclusion
The technique defined by capturing two offset images of the same subject to extract 3D information is stereo photography. Final Answer: (B)