Nalini K. Ratha  Nalini K. Ratha photo       

contact information

Research Staff Member, Biometrics Lead
Thomas J. Watson Research Center, Hawthorne, NY USA
  +1dash914dash784dash7136

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Professional Associations

Professional Associations:  ACM  |  IEEE

more information

More information:  IBM  |  IBM Research


2012



2011

FINGERPRINT REPRESENTATION USING GRADIENT HISTOGRAMS
G Aggarwal, R M Bolle, T Jea, N K Ratha
EP Patent 2,289,020


2009




2007



2006

Brain shape as a biometric
J H Connell, C Dorai, S J Noronha, N K Ratha
US Patent App. 11/405,330

Method, system, and program product for transforming a biometric image
R M Bolle, S S Chikkerur, J H Connell, N K Ratha
US Patent App. 20,070/217,708


Fingerprint representation using localized texture features
Rudolf Maarten Bolle, Sharat Suresh Chikkerur, Sharathchandra UmapathiRao Pankanti, Nalini Kanta Ratha
US Patent App. 11/472,709


2005



2004

Fingerprint biometric machine representations based on triangles
Rudolf Maarten Bolle, Jonathan Hudson Connell, Sharathchandra Pankanti, Nalini Kanta Ratha
US Patent App. 10/989,595

Method for biometric-based authentication in wireless communication for access control
Rudolf Maarten Bolle, Sharon Louise Nunes, Sharathchandra Pankanti, Nalini Kanta Ratha, Barton Allen Smith, Thomas Guthrie Zimmerman, others
US Patent 6,819,219



2003




2001

System and method for fingerprint image enchancement using partitioned least-squared filters
R M Bolle, S Ghosal, S Pankanti, N Ratha, R U Udupa
US Patent App. 09/943,896



2000

System and method for distortion control in live-scan inkless fingerprint images
Rudolf Maarten Bolle, Robert Steven Germain, Richard Lawrence Garwin, James Lewis Levine, Sharathchandra Umpathirao Pankanti, Nalini Kanta Ratha, Michael Alan Schappert
US Patent 6,064,753

System and method for distortion control in live-scan inkless fingerprint images
Rudolf Maarten Bolle, Robert Steven Germain, Richard Lawrence Garwin, James Lewis Levine, Sharathchandra Umpathirao Pankanti, Nalini Kanta Ratha, Michael Alan Schappert
US Patent 6,064,753