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Face tracking in a camera processor

  • US 8,155,397 B2
  • Filed: 09/26/2007
  • Issued: 04/10/2012
  • Est. Priority Date: 09/26/2007
  • Status: Expired due to Fees
First Claim
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1. A method operable in a digital image acquisition system having no photographic film, comprising:

  • using a processor in performing the following;

    a) receiving a relatively low resolution image of a scene from an image stream, said scene including one or more faces;

    b) applying at least one relatively long face classifier to said image to identify any relatively large sized face regions;

    c) applying at least one relatively short face classifier to said image to identify one or more relatively small sized face regions;

    d) receiving a relatively high resolution image of approximately the same scene; and

    e) applying at least one relatively long face classifier to at least one of said one or more identified small sized face regions in said relatively high resolution image.

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