Please download the dossier by clicking on the dossier button x
×

Real-time face tracking in a digital image acquisition device

  • US 8,666,124 B2
  • Filed: 03/12/2013
  • Issued: 03/04/2014
  • Est. Priority Date: 08/11/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method of detecting faces in an image stream, the method comprising:

  • receiving an acquired image from said image stream including one or more face regions;

    sub-sampling said acquired image at a specified resolution to provide a sub-sampled image;

    identifying one or more regions of said acquired image predominantly including skin tones by applying one of a number of filters to define said one or more regions of said acquired image predominantly including skin tones;

    calculating a corresponding integral image for at least one of said one or more regions of said sub-sampled image;

    applying face detection to at least a portion of said integral image to provide a set of one or more candidate face regions each having a given size and a respective locationadjusting focus distance incrementally for each of multiple new acquired images at least until at least one candidate face region is detected;

    providing a quality measure for one of a candidate region of an image or said acquired image; and

    responsive to said quality measure, applying a relaxed skin filter to a subsequently acquired image.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×