Aerial photography can be used to produce a variety of map products useful for landscape management...

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Civil Engineering

Aerial photography can be used to produce a variety of mapproducts useful for landscape management and engineeringapplications.
i. Briefly explain how a Digital Elevation Model (DEM) of alandscape can be generated from overlapping aerial photographs.
ii. What is an orthophoto? How does it differ from an aerialphotograph?
iii. A potentially very useful product that can be supplied tolandscape managers and engineers is a ‘stereo-model’ that can beviewed, interpreted, and measured using heads-up 3-dimensionalviewing technology:
a. Explain how two images can be displayed on a computer screenand visualised in 3-dimensions?
b. What advantages might this technology offer a practising landmanager or engineer?

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3.9 Ratings (531 Votes)

Ansi Digital Elevation Model is a type of 3D model which is used for representing surface of any terrain which would include any planet moon or any asteroid in the universe It is being created by the elevation data in the terrain If it is written as globally DEM then it is the global model of elevation The main thing behind this model is that we have to obtain the elevation of any surface and See Answer

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