Patent ID: 9659373
Date: 2017-05-23
CPC Classifications: B60Q,G06K,G06T

Claim:
1. A method for detecting a blind area of a camera, the method comprising: forming a first signal curve of a plurality of gradients, which have been determined as a function of gray values of adjacent image points of a first image section of a first image recorded by the camera; forming a second signal curve of a plurality of gradients, which have been determined as a function of gray values of adjacent image points of a first image section of a second image recorded co-located with the first image section of the first image, the second image having been recorded by the camera with a time lag relative to the first image; and detecting the blind area, if a comparison of the first signal curve with the second signal curve shows that at least one section of the first signal curve is identical to a corresponding section of the second signal curve within a tolerance range; wherein in the forming, a third signal curve of a plurality of gradients, which have been determined as a function of gray values of adjacent image points of a second image section of the first image, is formed, and a fourth signal curve of a plurality of gradients, which have been determined as a function of gray values of adjacent image points of a second section of the second image co-located with the second image section of the first image, is formed.