Photogrammetry is a sub sector of geodesy.
It enables remote surveying of objects, whereby photographs of the objects serve as a basis for the measurements. There are several methods: single and stereo imaging as well as terrestrial and aerial surveying according to the position of the camera. Single imagery is used for representing flat objects.
Particularly exact surveying is achieved by employing the method of stereo imaging, which is based on the process of stereophotography. A three-dimensional model of the object is produced, which serves as a basis for the survey and further processing.
Special photogrammetric cameras are used to produce the images.
There are a variety of possible applications of photogrammetry in archaeology: documenting excavations under deadline pressure, recording complex excavation situations, surveying vast objects from the air, creating three-dimensional models.
Fig. on the left: Universal photogrammetric camera
fig. on the right: stereoscopic camera
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