Method and apparatus for ascertaining at least one exit probability from a land area identifiable in a digital map as open terrain

摘要

A method and an apparatus for carrying out the method, for ascertaining at least one exit probability from a land area identifiable in a digital map as open terrain, wherein the exit probability is ascertained starting from a position within the land area. The method includes a step of subdividing the land area into a plurality of cells, with an initial transition probability being assigned to at least one transition from one cell to an adjacent cell. The method further includes a step of adapting the initial transition probability of the transition in response to a presence of at least one item of information from the digital map, to obtain an adapted transition probability for the transition, the item of information being associated with the cell or with the adjacent cell. The method also includes ascertaining the exit probability at least using the adapted transition probability of the transition.