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Face detecting system and method using symmetric axis

  • US 20050135679A1
  • Filed: 06/22/2004
  • Published: 06/23/2005
  • Est. Priority Date: 12/17/2003
  • Status: Active Grant
First Claim
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1. A face detecting system using a symmetric axis, the system comprising:

  • an image inputting unit for inputting a still image thereto;

    an image converting unit for reducing the inputted image to a first certain size of image for a real-time process by using a pyramidal resolution reduction way;

    a scanning unit for scanning the reduced image by applying a second certain size of symmetric mask;

    a region dividing unit for dividing a region of the scanned mask into a left region and a right region with respect to the symmetric axis;

    a symmetric-similarity computing unit for computing a symmetric similarity of a local region (Symmetric_measure_local) at the two divided regions and then computing a symmetric similarity of a global region (Symmetric_measure_global) to compute a symmetric similarity of a face region; and

    a face region extracting unit for extracting a region having a symmetric axis at which the computed symmetric similarity is above a predetermined value, as the face region.

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