Patents by Inventor Sharat S. Chikkerur

Sharat S. Chikkerur 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).

  • Methods and apparatus for generation of cancelable fingerprint template
    Patent number: 8538096
    Abstract: Techniques for generating a distorted fingerprint representation for a given fingerprint image are provided. First, at least one fingerprint feature point from a given fingerprint image is selected. At least one representation of a region proximate to the selected fingerprint feature point is then generated. Next, the representation of the region proximate to the selected fingerprint feature point is distorted. The distortion comprises applying a random projection to the representation to generate a randomly projected representation of the region proximate to the selected fingerprint feature point. A distorted template is then formed, wherein the distorted template comprises the randomly projected representation of the region proximate to the selected fingerprint feature point.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: September 17, 2013
    Assignee: International Business Machines Corporation
    Inventors: Rudolf Maarten Bolle, Sharat S. Chikkerur, Jonathan Hudson Connell, Nalini Kanta Ratha
  • Method, system, and program product for transforming a biometric image
    Patent number: 7822238
    Abstract: The invention provides a method, system, and program product for transforming a multi-dimensional biometric feature point set. More particularly, the invention provides a method for transforming a biometric image using surface folding of the image. In one embodiment, the invention provides a method for transforming a multi-dimensional biometric feature point set, the method comprising: converting the multi-dimensional biometric feature point set to a canonical position and orientation; applying a non-invertible transform function to each of a plurality of points of the biometric feature point set; and providing a transformed biometric feature point set comprising a plurality of transformed points.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 26, 2010
    Assignee: International Business Machines Corporation
    Inventors: Rudolf M. Bolle, Sharat S. Chikkerur, Jonathan H. Connell, Nalini K. Ratha
  • Methods and Apparatus for Generation of Cancelable Fingerprint Template
    Publication number: 20090175513
    Abstract: Techniques for generating a distorted fingerprint representation for a given fingerprint image are provided. First, at least one fingerprint feature point from a given fingerprint image is selected. At least one representation of a region proximate to the selected fingerprint feature point is then generated. Next, the representation of the region proximate to the selected fingerprint feature point is distorted. The distortion comprises applying a random projection to the representation to generate a randomly projected representation of the region proximate to the selected fingerprint feature point. A distorted template is then formed, wherein the distorted template comprises the randomly projected representation of the region proximate to the selected fingerprint feature point.
    Type: Application
    Filed: January 9, 2008
    Publication date: July 9, 2009
    Inventors: Rudolf Maarten Bolle, Sharat S. Chikkerur, Jonathan Hudson Connell, Nalini Kanta Ratha
  • METHOD, SYSTEM, AND PROGRAM PRODUCT FOR TRANSFORMING A BIOMETRIC IMAGE
    Publication number: 20080285815
    Abstract: The invention provides a method, system, and program product for transforming a multi-dimensional biometric feature point set. More particularly, the invention provides a method for transforming a biometric image using surface folding of the image. In one embodiment, the invention provides a method for transforming a multi-dimensional biometric feature point set, the method comprising: converting the multi-dimensional biometric feature point set to a canonical position and orientation; applying a non-invertible transform function to each of a plurality of points of the biometric feature point set; and providing a transformed biometric feature point set comprising a plurality of transformed points.
    Type: Application
    Filed: June 26, 2008
    Publication date: November 20, 2008
    Inventors: Rudolf M. Bolle, Sharat S. Chikkerur, Jonathan H. Connell, Nalini K. Ratha