FORESTRY
GENERAL FORESTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The greatest amount of distortion on an aerial photograph occurs at the:
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edges of the photograph
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center of the photograph
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left side of the photograph
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right side of the photograph
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Explanation:
Detailed explanation-1: -An orthoimage (or orthophoto) is a single aerial image in which distortions caused by relief displacement have been removed. The scale of an orthoimage is uniform.
Detailed explanation-2: -The higher the altitude of the aircraft (or satellite), the smaller the scale of the resulting image. Variations in ground elevation are the main reason for scale distortion in airphotos. Higher elevations are closer to the camera and thus appear at a larger scale in the image.
Detailed explanation-3: -In photography, there are two types of distortions: optical and perspective.
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