Patents Examined by Katheen Yuan
  • Image recognition using hidden markov models and coupled hidden markov models
    Patent number: 7171043
    Abstract: An image processing system useful for facial recognition and security identification obtains an array of observation vectors from a facial image to be identified. A Viterbi algorithm is applied to the observation vectors given the parameters of a hierarchical statistical model for each object, and a face is identified by finding a highest matching score between an observation sequence and the hierarchical statistical model.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: January 30, 2007
    Assignee: Intel Corporation
    Inventor: Ara V. Nefian