Orthoimage
Applied digital documentation In the historic environment, published on 19 March 2018 by Historic Scotland, defines orthoimage as an: ‘Image geometrically corrected (“orthorectified”) such that the scale is uniform.’
The Geospatial Glossary, published by the Geospatial Commission, and accessed on 17 September 2022, defines an orthoimage as: ‘…aerial photograph or satellite imagery geometrically corrected (“orthorectified”) such that the scale is uniform: the photo or image follows a given map projection. 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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