METHOD AND SYSTEM FOR VOLUME DETERMINATION USING A STRUCTURE FROM MOTION ALGORITHM

摘要

A volume determining method for an object on a construction site is disclosed. The method may include moving a mobile camera along a path around the object while orienting the camera repeatedly onto the object. The method may include capturing a series of images of the object from different points on the path and with different orientations with the camera, the series being represented by an image data set; performing a structure from motion evaluation with a defined algorithm using the series of images and generating a spatial representation; scaling the spatial representation with help of given information about a known absolute reference regarding scale; defining a ground surface for the object and applying it onto the spatial representation; and calculating and outputting the absolute volume of the object based on the scaled spatial representation and the defined ground surface.

主权项

1. A volume determining method for an object on a construction site, the method comprising:
moving a mobile camera along a path around the object while orienting the camera repeatedly, in particular continuously, onto the object, in the course of this, capturing a series of images of the object with the camera, the series comprising a plurality of images captured from different points on the path and with different orientations of the camera, 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 spatial representation comprising a surface of the object therefrom, scaling the spatial representation with help of given information about a known absolute reference regarding scale, defining a ground surface for the object and applying it onto the spatial representation and calculating and outputting the absolute volume of the object based on the scaled spatial representation and the defined ground surface.