Patents by Inventor Bhargab Bhattacharya

Bhargab Bhattacharya 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).

  • Robust digital image watermarking utilizing a Walsh transform algorithm
    Publication number: 20050144456
    Abstract: Disclosed is a method, apparatus, and system to provide for robust digital image watermarking utilizing a Walsh transform algorithm. A first image processor performs operations including partitioning a cover image, generating a key, and inserting a watermark symbol into the cover image utilizing a Walsh transform and the key. A second image processor performs operations including extracting the watermark symbol from the cover image utilizing a Walsh transform and the key.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 30, 2005
    Inventors: Tinku Acharya, Bhargab Bhattacharya, Malay Kundu, C. Murthy, Santi Maity
  • Fingerprint minutiae matching using scoring techniques
    Publication number: 20050129293
    Abstract: Disclosed is a method and apparatus to provide for fingerprint minutiae matching using scoring techniques. A plurality of minutiae in a fingerprint image is defined. A score associated with each minutia corresponding to the validity of each minutia is estimated. The fingerprint image is then matched against one or more sample fingerprint images utilizing a partial point set pattern matching (PSPM) algorithm.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: Tinku Acharya, Bhargab Bhattacharya, Arindam Biswas, Partha Bhowmick, Arijit Bishnu, Sandip Das, Malay Kundu, C. Murthy, Subhas Nandy