Patents by Inventor Leendert Blonk

Leendert Blonk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Illumination detection using classifier chains
    Patent number: 8503800
    Abstract: A face illumination normalization method includes acquiring a digital image including a face that appears to be illuminated unevenly. One or more uneven illumination classifier programs are applied to the face data to determine the presence of the face within the digital image and/or the uneven illumination condition of the face. The uneven illumination condition may be corrected to thereby generate a corrected face image appearing to have more uniform illumination, for example, to enhance face recognition.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 6, 2013
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Leendert Blonk, Mihnea Gangea, Peter Corcoran
  • Illumination Detection Using Classifier Chains
    Publication number: 20120207358
    Abstract: A face illumination normalization method includes acquiring a digital image including a face that appears to be illuminated unevenly. One or more uneven illumination classifier programs are applied to the face data to determine the presence of the face within the digital image and/or the uneven illumination condition of the face. The uneven illumination condition may be corrected to thereby generate a corrected face image appearing to have more uniform illumination, for example, to enhance face recognition.
    Type: Application
    Filed: January 16, 2012
    Publication date: August 16, 2012
    Applicant: DIGITALOPTICS CORPORATION EUROPE LIMITED
    Inventors: Leendert Blonk, Mihnea Gangea, Peter Corcoran
  • Illumination Detection Using Classifier Chains
    Publication number: 20080219517
    Abstract: A face illumination normalization method includes acquiring a digital image including a face that appears to be illuminated unevenly. One or more uneven illumination classifier programs are applied to the face data to determine the presence of the face within the digital image and/or the uneven illumination condition of the face. The uneven illumination condition may be corrected to thereby generate a corrected face image appearing to have more uniform illumination, for example, to enhance face recognition.
    Type: Application
    Filed: February 27, 2008
    Publication date: September 11, 2008
    Applicant: FotoNation Vision Limited
    Inventors: Leendert Blonk, Mihnea Gangea, Peter Corcoran