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Cross-modiality image matching method

  • US 10,346,464 B2
  • Filed: 09/27/2016
  • Issued: 07/09/2019
  • Est. Priority Date: 09/27/2016
  • Status: Active Grant
First Claim
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1. A method for an electronic device, the method comprising:

  • extracting features from each of a query image acquired in a first modality and a database image acquired in a second modality, wherein the first modality is different from the second modality, the query image is a face image and the database image is a face image having a head pose that is different from a head pose of the query image, and the query image and the database image are not aligned when the features are extracted;

    determining, based on a codebook for the first modality, a vector distance distribution for the query image represented by the extracted features and a vector distance distribution for the database image represented by the extracted features;

    generating a set of distances between the vector distance distribution determined for the query image and the vector distance distribution determined for the database image;

    determining a score for matching the query image and the database image based on the determined set of distances; and

    transmitting information related to the determined score to a server to cause the server to match the query image to the database image using the transmitted information and to display matched images to a user of the server.

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