4.8.27 - Scale
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Practice Questions
Test your understanding with targeted questions
What does scale in photogrammetry refer to?
💡 Hint: Think about how distances relate between a photo and actual map.
Define focal length.
💡 Hint: Consider the camera's lens positioning.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the scale of an aerial photograph defined as?
💡 Hint: Think about distances compared to what you see in photographs.
True or False: The scale of a photograph remains constant regardless of terrain elevation.
💡 Hint: Remember how different heights might impact photography results.
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Challenge Problems
Push your limits with advanced challenges
You have a photograph taken at a flying height of 1500 m using a camera with a focal length of 75 mm. Calculate the scale of the photograph and discuss how it might change if the average elevation of objects in view is raised by 20 m.
💡 Hint: Recalculate with adjusted height; elevation will always make scale change.
Consider two points on differing elevations, point A at 15 m and point B at 25 m above sea level. Calculate their respective scales if photographed from a height of 1000 m with a 50 mm lens.
💡 Hint: Do each calculation separately and notice how their differences arise from their heights.
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