Mobile photogrammetry for positioning measuring sensors

In order to map measurement results the spatial coordinates of measurement sensors are needed. One solution for determining coordinates is photogrammetric method using a cell phone with a good resolution digital camera rigidly attached to measurement sensor. Photogrammetric software calculates coordinates and spatial orientation of sensor(s) from taken photographs. In order to achieve good accuracy and automation, coded targets are used. Standard off-shelf components that are readily available nearly in every electronic store are used in described system in order to ease implementation of proposed method and reduce costs. Sensors and main unit (cell phone) talk to each other via Bluetooth radio link. Acquired measurement results are bound to measurement pointpsilas coordinates and could be processed later with various CAD programs.