In aerial photography for photogrammetric mapping, the standard forward overlap between consecutive photos along the flight strip is:
Choose the correct answer
20-30%
60% (end lap) and 30% side lap between adjacent strips
10%
90%
Correct Answer
B. 60% (end lap) and 30% side lap between adjacent strips
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Standard overlap: end lap (forward overlap) = 60% along flight direction for stereo coverage; side lap (lateral overlap) = 30% between adjacent strips. This ensures every point on the ground appears in at least two photos for stereoscopic viewing and photogrammetric computation.
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