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Reliability acquiring apparatus, reliability acquiring method, and reliability acquiring program

  • US 9,858,501 B2
  • Filed: 02/08/2013
  • Issued: 01/02/2018
  • Est. Priority Date: 02/16/2012
  • Status: Active Grant
First Claim
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1. A reliability calculating apparatus for detection of a target as a face, comprising:

  • a processor; and

    a storing device,wherein the storing device comprises;

    classifier storage that stores information on a classifier that outputs a part likelihood of a predetermined part of a detection target which is calculated based on image feature values concerning the predetermined part of the detection target, andreference position storage that stores information on a reference position of the predetermined part,wherein the storing device further has, stored therein, programming code that, upon execution by the processor, causes the processor to perform the functions of;

    retrieving, from the classifier storing device, information on the classifier from the classifier storage,calculating, using data of an image region included in an input image, a part likelihood of the input image by using the retrieved information on the classifier,determining, based on the calculated part likelihood, a position of the predetermined part in the input image,retrieving information on the reference position of the predetermined part of the detection target stored from the reference position information storing,calculating difference information between the reference position of the predetermined part of the detection target and the determined position of the predetermined part, andcalculating first reliability indicating possibility that the input image is an image showing the detection target based on a facial feature point likelihood calculated based on the image feature values,wherein the image feature values include a difference in intensity values,wherein the programming code causes the processor, in calculating difference information between the reference position of the predetermined part of the detection target and the determined position of the predetermined part, to calculate the difference information on the basis of whether the position of the predetermined part in the input image determined by the position determining unit is an outlier using a method of robust estimation,and wherein the detection target is a face.

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