Abstract: The invention relates to a method for recording landmarks in a traffic environment of a mobile unit, in which data sets are recorded by a laser scanner, wherein the data sets comprise data points. Data points from a certain number of data sets are saved as output data and, based on the output data, segments are determined by means of segmentation, wherein data points are assigned to each of the segments. For each of the determined segments, landmark parameters of the respective segment are determined by means of a principle component analysis and an object class is assigned to the segments based on the landmark parameters respectively determined for them. Landmark observations are determined, wherein landmark parameters and an object class are assigned to each landmark observation, and the landmark observations are output. The invention relates further to a system for recording landmarks in a traffic environment of a mobile unit.

Abstract: A method for comparing two maps with landmarks stored therein. The method includes comparing at least one portion of the first map with a corresponding portion in the second map, wherein a similarity between the portion of the first map and the corresponding portion in the second map is determined based on a correspondence between the landmarks respectively stored in the two portions, and wherein the similarity of the compared portion is expressed as a similarity value derived therefrom. Also disclosed is an associated apparatus, an associated computer program including program code, and an associated computer program product including program code.

Abstract: The invention relates to a method for recording landmarks in a traffic environment of a mobile unit, in which data sets are recorded by a laser scanner, wherein the data sets comprise data points. Data points from a certain number of data sets are saved as output data and, based on the output data, segments are determined by means of segmentation, wherein data points are assigned to each of the segments. For each of the determined segments, landmark parameters of the respective segment are determined by means of a principle component analysis and an object class is assigned to the segments based on the landmark parameters respectively determined for them. Landmark observations are determined, wherein landmark parameters and an object class are assigned to each landmark observation, and the landmark observations are output. The invention relates further to a system for recording landmarks in a traffic environment of a mobile unit.

Abstract: A method for comparing two maps with landmarks stored therein. The method includes comparing at least one portion of the first map with a corresponding portion in the second map, wherein a similarity between the portion of the first map and the corresponding portion in the second map is determined based on a correspondence between the landmarks respectively stored in the two portions, and wherein the similarity of the compared portion is expressed as a similarity value derived therefrom. Also disclosed is an associated apparatus, an associated computer program including program code, and an associated computer program product including program code.