8. Photogrammetry, videogrammetry

8.1 Measuring principle

Photogrammetry is a measuring method that uses images (photographic or digital) taken from different angles to determine the dimensions, shapes or positions of objects. To do this, we use :

• either calibrated cameras using flat, dimensionally stable silver film or CCD detectors for static measurements;

• or cameras (film or CCD) if dynamic measurements are required (videogrammetry).

These cameras are often referred to as metric cameras. They are...