Method and device for detecting variable-message signs

Abstract

A method for detecting variable message traffic signs for a vehicle, includes: reading in a vehicle position, comparing the vehicle position to position information of at least one variable message traffic sign in order to determine a presence of a variable message traffic sign in a predefined area around the vehicle and in response to provide a proximity information, and varying a detection instruction of information of a variable message traffic sign in response to the proximity information to detect a variable message traffic sign.

Description

technical field [0001] The invention relates to a method for recognizing changing traffic signs for vehicles, a corresponding device for recognizing changing traffic signs, and a corresponding computer program product. Background technique [0002] In vehicles, video sensor systems in the field of driver assistance systems are also used to recognize traffic signs. The results of the recognition are usually compared or merged with information from the digital map of the navigation device before being shown to the driver. In this case, in addition to normal sheet-metal traffic signs, alternative traffic signs (light signs) must also be recognized. The recognition of the changing traffic signs is often problematic due to the pulses of the LED lights used. The frequency of the pulses is imperceptible to the human eye. However, depending on the exposure time, the pulse frequency of the markers and the image recording frequency of the camera, the "ausphase" of the pulses can al...

AI Technical Summary

Problems solved by technology

However, depending on the exposure time, the pulse frequency of the markers and the image recording frequency of the camera, the "ausphase" of the pulses can also fall into the time period of the image recording, so that they may not be fully or not recognized in the image out sign

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