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Rudolf Maarten Bolle, Chitra Dorai, Nalini K Ratha: System and method for distortion characterization in fingerprint and palm-print image sequences and using this distortion as a behavioral biometrics. International Business Machines Corporation, Ryan Mason & Lewis, March 4, 2004: US20040042642-A1

This invention uses a novel biometrics, called resultant fingerprints and palm-prints, for authentication. The novel biometrics are consecutive traditional print images where the subject physically changes the appearance of the print images by rotating or rotating and translating, or rotating, trans ...


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Rudolf Maarten Bolle, Jonathan H Connell, Nalini K Ratha, Louis J Percello: Business system and method using a distorted biometrics. International Business Machines Corporation, Ryan Mason & Lewis, January 29, 2004: US20040019570-A1

A method of doing business is disclosed that transforms a biometric used by a user in a transaction. The transformation creates a distorted biometric. The distorted biometric is used to identify the user to another party without requiring the user to provide actual physical or behavioral characteris ...


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Rudolf Maarten Bolle, Sharat Suresh Chikkerur, Sharathchandra UmapathiRao Pankanti, Nalini Kanta Ratha: Fingerprint representation using localized texture features. Keusey Tutunjian & Bitetto PC, December 27, 2007: US20070297653-A1

A system and method for processing fingerprints includes representing each minutiae in a fingerprint by determining quantized Gabor coefficients to represent texture content of the minutiae. A distance is computed between represented minutiae and stored minutiae. The minutiae matches are ranked base ...


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Rudolf Maarten Bolle, Sharat Suresh Chikkerur, Sharathchandra UmapathiRao Pankanti, Nalini Kanta Ratha: Fingerprint representation using localized texture feature. Keusey Tutunjian & Bitetto PC, September 25, 2008: US20080232654-A1

A system and method for processing fingerprints includes representing each minutiae in a fingerprint by determining quantized Gabor coefficients to represent texture content of the minutiae. A distance is computed between represented minutiae and stored minutiae. The minutiae matches are ranked base ...


35
Rudolf Maarten Bolle, Jonathan Hudson Connell, Sharathchandra Pankanti, Nalini Kanta Ratha: Fingerprint biometric machine representations based on triangles. Keusey Tutunjian & Bitetto PC, May 18, 2006: US20060104484-A1

There is provided an apparatus, method, and program storage device for representing biometrics. The apparatus includes a biometric feature extractor and a transformer. The biometric feature extractor is for extracting features corresponding to a biometric depicted in an image, and for defining one o ...


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Gaurav Aggarwal, Rudolf Maarten Bolle, Jonathan H Connell, Nalini Kanta Ratha: Method and apparatus for repeatable facial distortion. Wall & Tong, Ibm Corporation, September 10, 2009: US20090226045-A1

In one embodiment, the invention is a method and apparatus for repeatable facial distortion. One embodiment of a method for generating a secure facial image from an original facial image includes receiving the original facial image and a key, the key being associated with a subject depicted in the o ...


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Gaurav Aggarwal, Rudolf Maarten Bolle, Tsai Yang Jea, Nalini Kanta Ratha: Fingerprint representation using gradient histograms. Ryan Mason & Lewis, November 19, 2009: US20090285459-A1

Techniques for generating a gradient characterization for a first fingerprint image are provided. One or more fingerprint feature points are selected from the first fingerprint image. A region is obtained for each of the one or more selected fingerprint feature points. The region is a representation ...


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Rudolf Maarten Bolle, Sharat S Chikkerur, Jonathan Hudson Connell, Nalini Kanta Ratha: Methods and Apparatus for Generation of Cancelable Fingerprint Template. Ryan Mason & Lewis, July 9, 2009: US20090175513-A1

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 g ...