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Optical test device for a vehicle camera and testing method

  • US 10,368,063 B2
  • Filed: 04/16/2018
  • Issued: 07/30/2019
  • Est. Priority Date: 04/17/2017
  • Status: Active Grant
First Claim
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1. A method of testing a camera for vision system for a vehicle, said method comprising:

  • providing a camera configured for mounting and use on a vehicle, said camera having a field of view, wherein said camera is operable at selected ones of a plurality of register settings;

    providing a test pattern in the field of view of the camera;

    capturing image data with said camera;

    wherein capturing image data comprises capturing at least two frames of image data using different register settings having noise filtering at a respective one of at least two levels between a maximum noise filtering and a minimum noise filtering;

    measuring the signal to noise ratio for each of the at least two frames of captured image data;

    measuring a texture value for each of the at least two frames of captured image data; and

    selecting a compromise between noise reduction and texture preservation.

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