Patents by Inventor K. Vijayan Asari

K. Vijayan Asari 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).

  • Optical pattern recognition technique
    Patent number: 8649631
    Abstract: Disclosed is a distortion invariant system, method and computer readable medium for detecting the presence of one or more predefined targets in an input image. The input image and a synthetic discriminant function (SDF) reference image are correlated in a shift phase-encoded fringe-adjusted joint transform correlation (SPFJTC) correlator yielding a correlation output. A peak-to-clutter ratio (PCR) is determined for the correlation output and compared to a threshold value. A predefined target is present in the input image when the PCR is greater than or equal to the threshold value.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: February 11, 2014
    Assignee: Old Dominion University Research Foundation
    Inventors: Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad A. Karim
  • Optical Pattern Recognition Technique
    Publication number: 20130148915
    Abstract: Disclosed is a distortion invariant system, method and computer readable medium for detecting the presence of one or more predefined targets in an input image. The input image and a synthetic discriminant function (SDF) reference image are correlated in a shift phase-encoded fringe-adjusted joint transform correlation (SPFJTC) correlator yielding a correlation output. A peak-to-clutter ratio (PCR) is determined for the correlation output and compared to a threshold value. A predefined target is present in the input image when the PCR is greater than or equal to the threshold value.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 13, 2013
    Inventors: Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad A. Karim
  • Optical Pattern Recognition Technique
    Publication number: 20130142424
    Abstract: Disclosed is a distortion invariant system, method and computer readable medium for detecting the presence of one or more predefined targets in an input image. The input image and a synthetic discriminant function (SDF) reference image are correlated in a shift phase-encoded fringe-adjusted joint transform correlation (SPFJTC) correlator yielding a correlation output. A peak-to-clutter ratio (PCR) is determined for the correlation output and compared to a threshold value. A predefined target is present in the input image when the PCR is greater than or equal to the threshold value.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 6, 2013
    Inventors: Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad A. Karim
  • Optical pattern recognition technique
    Patent number: 8401332
    Abstract: Disclosed is a distortion invariant system, method and computer readable medium for detecting the presence of one or more predefined targets in an input image. The input image and a synthetic discriminant function (SDF) reference image are correlated in a shift phase-encoded fringe-adjusted joint transform correlation (SPFJTC) correlator yielding a correlation output. A peak-to-clutter ratio (PCR) is determined for the correlation output and compared to a threshold value. A predefined target is present in the input image when the PCR is greater than or equal to the threshold value.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: March 19, 2013
    Assignee: Old Dominion University Research Foundation
    Inventors: Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad A. Karim
  • Optical pattern recognition technique
    Publication number: 20090297021
    Abstract: Disclosed is a distortion invariant system, method and computer readable medium for detecting the presence of one or more predefined targets in an input image. The input image and a synthetic discriminant function (SDF) reference image are correlated in a shift phase-encoded fringe-adjusted joint transform correlation (SPFJTC) correlator yielding a correlation output. A peak-to-clutter ratio (PCR) is determined for the correlation output and compared to a threshold value. A predefined target is present in the input image when the PCR is greater than or equal to the threshold value.
    Type: Application
    Filed: April 23, 2009
    Publication date: December 3, 2009
    Inventors: Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad A. Karim