EXTRACTION OF EXTRACTION INFORMATION FROM SCANNING INFORMATION OF A SURFACE FOR USE WITH A DATABASE

The invention relates to a device having a processing unit which is designed to obtain scanning information, provided by a sensing unit, from scanning of a surface, the scanning information containing information about an inherent feature of the surface. The processing unit is also designed to extract extraction information for the inherent feature from the scanning information and, on the basis of the extraction information, to carry out a comparison with a database, wherein extraction information for a plurality of inherent features of the surface is stored in the database. Furthermore, the processing unit is designed to determine the position of the sensing unit on the basis of the comparison.