Photogrammetry is a technology that calculates geometric features in photographs.  It was developed in Europe more than 100 years ago.  Today it is applied to aerophoto-measurements and in many other fields.
In recent years, photogrammetry systems are available for conventional digital cameras and a variety of products are sold in market.
However, most of them require many images for one calculation, which accompanies miscellaneous works (e.g. changing marker positions, etc ) and have been considered not very practical.
Our PhotoCalc, however, can calculate various measures even with one or two pictures.  PhotoCalc is easy-to-use, high precision photogrammetry system.

Calculations from only one picture but various measurements and processes are possible as follows:

1. Distance in a plane	2. Three dimensions	3. Hole measurements
e.g. Width, pitch	e.g. Diameter and height	e.g. Holes in a plane
4. Area	5. Front view correction	6. Crack detection
e.g. Athletic court	e.g. Ukiyoe painting	e.g. Crack detection
7. Measurements with laser rangefinder
e.g. Extended distance measurement

Calculations from two views.  Unlike stereo-camera, camera position does not need to be fixed.  You can arrange angle as you like.

1. General 3D position and dimension measurements	2. 3D hole measurements	3. Robot teaching
		e.g. Define teaching positions in the image
4. Measurements with laser rangefinder
e.g. Extended distance measurement

Calculations from multiple images.  Coded targets (marker) need to be taken with the object.  Recommended for complicating shape (i.e. two images are not enough to get complete profile); camera lens distortion correction; camera position calculation (wand calibration).

＊Also check out ImageMapper (texture mapping software)