Abstract: A method detects the image of an obstacle-free region surrounding a photograph-capturing unit. A photograph of a portion of the environment of the photograph-capturing unit is created by the photograph-capturing unit and a digital picture is created. The digital picture is examined for the presence of possible boundaries of an obstacle-free region, a boundary indicator value being determined for each individual pixel of the digital picture in accordance with the picture data of the digital picture within an environment of the pixel in question. The picture data being defined pixel by pixel, the boundary indicator value indicating the probability that the image of the boundary of an obstacle-free region is located within a specified pixel environment. A coordinate parameterization having two parameters is specified for the digital picture, which coordinate parameterization corresponds in particular to the pixel coordinates.

Abstract: A method detects the image of an obstacle-free region surrounding a photograph-capturing unit. A photograph of a portion of the environment of the photograph-capturing unit is created by the photograph-capturing unit and a digital picture is created. The digital picture is examined for the presence of possible boundaries of an obstacle-free region, a boundary indicator value being determined for each individual pixel of the digital picture in accordance with the picture data of the digital picture within an environment of the pixel in question. The picture data being defined pixel by pixel, the boundary indicator value indicating the probability that the image of the boundary of an obstacle-free region is located within a specified pixel environment. A coordinate parameterization having two parameters is specified for the digital picture, which coordinate parameterization corresponds in particular to the pixel coordinates.