METHOD, SYSTEM AND COMPUTER PROGRAMME PRODUCT FOR DETERMINATION OF AN ABSOLUTE VOLUME OF A STOCK PILE USING A STRUCTURE FROM MOTION ALGORITHM

Volume determining method for an object (1), particularly a stock pile, on a construction site, comprising – moving a mobile camera (8) along a path (10) around the object (1) while orienting the camera (8) repeatedly or continuously, onto the object (1), – in the course of this, capturing a series of images of the object (1) with the camera (8), the series comprising a plurality of images captured from different points on the path (10) and with different orientations of the camera (8), the series being represented by an image data set collected thereby, – performing a structure from motion evaluation with a defined algorithm using the series of images and generating a point cloud spatial representation comprising a surface of the object (1) therefrom, – scaling the spatial representation with help of a known absolute reference regarding scale, the scale being imaged by the camera (8) together with the object (1), – defining a ground surface for the object (1) and applying it onto the spatial representation and – calculating and outputting the absolute volume of the object (1) based on the scaled spatial representation and the defined ground surface.