Orthophotos are images resulting from the ortho-rectification of aerial photographs based on a digital terrain model or digital elevation model. The ortho-rectification process aims to remove the effects of aerial camera lens tip and tilt, image scale variations, and object displacements due to ground relief. This is accomplished by reprocessing the photograph to conform to the orthographic projection, hence the name, orthophoto. These digital orthophoto image data tiles are georeferenced and can therefore be used as a backdrop layer in conjunction with other spatial information.
- Licence for this item:
- Restricted - single supply licence
- Related resource:
- Historical orthophoto maps - digital copy
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- Email Product delivery
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