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Fundamentals of Remote Sensing

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The advantage of geometrically correcting an image prior to further analysis and interpretation is that it would then allow proper measurements of distances and areas to be made from features in the image. This may be particularly useful in different applications where true measurements are necessary, such as in urban mapping applications. Also, the geographic locations of features could be determined. Once an image is geometrically registered to a known geographic base, it can be combined with other mapped data in a digital environment for further analysis. This is the concept of data integration which is discussed in section 4.8.
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