Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Wolfgang Gerner

Dietrich Dumler

Harald Gossner

Franz Wenninger

Embodiments of the invention provide an apparatus for detecting a state of a road surface. The apparatus includes an input interface, an image divider, a parameter calculator, and a classifier. The input interface is configured to obtain recording information of the road surface, such as a camera recording. The image divider is configured to divide the recording information into a plurality of windows, wherein each window includes a plurality of image elements, and wherein each image element includes at least two different pieces of information, such as a spectral absorption of the road surface and/or a polarization of the reflected light. The parameter calculator is configured to calculate at least two parameters per window by using the at least two different pieces of information of each image element in the window. The classifier is configured to classify the window on the basis of a tuple of the at least two parameters of the window, and to detect, on the basis of the tuple of the at least two parameters of the window, as input values a state of the window and to output the state of the window as an output value.

Apparatus and method for detecting a state of a road surface

A device for identifying water on a surface, including an optical sensor and a processor. The optical sensor is configured to produce a first image of the surface which has a first optical bandwidth within which the water has a first absorption rate, and a second image of the surface which has a second optical bandwidth within which the water has a second absorption rate that is higher than the first absorption rate. The processor is configured to combine the first image and the second image to produce a combined image in which the surface is reduced or eliminated as compared to the water. In addition, the processor is configured to detect water in the combined image.

Growing community of inventors

Neubiberg, Germany

Wolfgang Gerner