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Face meta-data generation and face similarity calculation

  • US 7,593,551 B2
  • Filed: 12/16/2002
  • Issued: 09/22/2009
  • Est. Priority Date: 12/14/2001
  • Status: Active Grant
First Claim
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1. A face meta-data generating apparatus comprising:

  • a face feature extracting unit which extracts a face feature from a face image; and

    a confidence index extracting unit which extracts a confidence index indicative of a confidence to said face feature, from said face image,wherein said face feature and said confidence index are generated as a face meta-data,said confidence index extracting unit comprises;

    a first confidence index extracting unit which extracts a contrast index of said face image; and

    a second confidence index extracting unit which extracts as an asymmetric index of said face image one of a maximum value of differences between said face image and a flipped image obtained by flipping said face image, and one of a sum and an average of powers of pixel values of difference images between said face image and said flipped image.

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