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Method for mismatch detection between the frequency of illumination source and the duration of optical integration time for imager with rolling shutter

  • US 20040109069A1
  • Filed: 12/10/2002
  • Published: 06/10/2004
  • Est. Priority Date: 12/10/2002
  • Status: Active Grant
First Claim
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1. A method for achieving flickerless operation of imagers using a rolling shutter comprising the steps of:

  • first detecting flicker in an image frame caused by an illumination source having a non-zero light intensity period; and

    adjusting an integration time such that said integration time is an integer multiple of said non-zero light intensity period.

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