Scanning of three-dimensional objects

The present invention relates to method and system for scanning a three-dimensional object comprising scanning a surface of the object from a first scanning position, generating a first scanning sample comprising a point cloud having data points corresponding to positions on the surface of the object; determining the coordinates of the first scanning position by a satellite based positioning system, correcting the inaccuracy of the positioning system by using an additional error signal; scanning the surface of a three-dimensional object from at least one further scanning position, generating at least one further scanning sample comprising such a point cloud; determining the coordinates of the at least one further scanning position by the positioning system, again correcting the inaccuracy of the positioning system; registering the first and the at least one further scanning samples based on the first and the at least one further scanning positions, such that the samples are oriented relatively to each according to the orientation of the respective surfaces of the three-dimensional object.