The calculation of the volume of the plant necessary as a strategically important type of work that allows you to consider coal stocks for smooth operation.
The work of counting was conducted photogrammetric methods in July 2016 (the quadcopter with a high resolution camera and a GPS receiver). To control the used GNSS receivers Leica GS 08 plus.

It was first created a digital model of the bottom. After the processing of stereo pairs was obtained by a digital surface model of the coal warehouse.

Digital model of the bottom of the warehouse

Digital model of the surface of the coal warehouse

The centers of photographing over the coal warehouse