Which effect is corrected in an orthophoto?Group of answer choicesObscuration from shadowsRolling shutter distortionTilt seen in buildingsScale changes due to terrain elevation
Question
Which effect is corrected in an orthophoto?Group of answer choicesObscuration from shadowsRolling shutter distortionTilt seen in buildingsScale changes due to terrain elevation
Solution
An orthophoto corrects the scale changes due to terrain elevation.
Here's a step-by-step explanation:
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An orthophoto is a type of aerial photograph that has been geometrically corrected ("orthorectified") such that the scale is uniform. This means it has the same lack of distortion as a map.
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Unlike an uncorrected aerial photograph, an orthophoto can be used to measure true distances, because it is an accurate representation of the Earth's surface, having been adjusted for topographic relief, lens distortion, and camera tilt.
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Therefore, the effect that is corrected in an orthophoto is the scale changes due to terrain elevation. This correction allows for accurate distance measurements and provides a true representation of the Earth's surface.
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Obscuration from shadows, rolling shutter distortion, and tilt seen in buildings are not typically corrected in an orthophoto. These are different types of distortions that may occur in photography or imaging, but they are not related to the geometric corrections made in an orthophoto.
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