DETECTION AND CLASSIFICATION OF LIGHT SOURCES USING A DIFFRACTION GRATING

摘要

A system mounted in a vehicle for classifying light sources. The system includes a lens and a spatial image sensor. The lens is adapted to provide an image of a light source on the spatial image sensor. A diffraction grating is disposed between the lens and the light source. The diffraction grating is adapted for providing a spectrum. A processor is configured for classifying the light source as belonging to a class selected from a plurality of classes of light sources expected to be found in the vicinity of the vehicle, wherein the spectrum is used for the classifying of the light source. Both the image and the spectrum may be used for classifying the light source or the spectrum is used for classifying the light source and the image is used for another driver assistance application.

主权项

1. A system mounted in a vehicle, the system for classifying a light source, the system comprising:
a spatial image sensor; a lens that is adapted to provide an image of a light source on said spatial image sensor; a diffraction grating disposed between said lens and said light source, said diffraction grating adapted to provide a spectrum; and a processor configured to classify said light source as belonging to a class selected from a plurality of classes of light sources expected to be found in a vicinity of the vehicle, said processor using said spectrum to classify said light source.