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- Dec 23, 2013
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Does anyone know how to calculate the amount of land, in sq ft, you could cover with a photo looking straight down, from a pre-defined altitude. I know that the two main variables would be focal length and altitude (and the MP of the photo), but I do not know the equation (or the focal length for that matter).
For example, if I wanted to recreate Google Earth for my town, by taking photos in a systematic way, all from the same altitude, and then stitch them together, how could I calculate how many shots would be needed to cover a known area?
For example, if I wanted to recreate Google Earth for my town, by taking photos in a systematic way, all from the same altitude, and then stitch them together, how could I calculate how many shots would be needed to cover a known area?