Patents by Inventor Suman Kumar Mitra

Suman Kumar Mitra 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).

  • Method for block-based digital image watermarking
    Patent number: 7006663
    Abstract: A method of encoding a watermark into a digital image. The method includes partitioning an original image into blocks and then determining a variance value of each block. The blocks are then arranged according to the variance values. A number of selected blocks are identified, where the number depends upon the size of the watermark. The blocks selected are then arranged by their location. Data from the watermark is used to replace bits in a representation of each of the selected blocks with data from the watermark. A method of decoding is also discussed.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: February 28, 2006
    Assignee: Intel Corporation
    Inventors: Tinku Acharya, Bhargab Bikram Bhattacharya, Malay Kumar Kundu, Suman Kumar Mitra, Chivukula Anjaneya Murthy
  • Method for block-based digital image watermarking
    Publication number: 20040131229
    Abstract: A method of encoding a watermark into a digital image. The method includes partitioning an original image into blocks and then determining a variance value of each block. The blocks are then arranged according to the variance values. A number of selected blocks are identified, where the number depends upon the size of the watermark. The blocks selected are then arranged by their location. Data from the watermark is used to replace bits in a representation of each of the selected blocks with data from the watermark. A method of decoding is also discussed.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 8, 2004
    Applicant: Intel Corporation
    Inventors: Tinku Acharya, Bhargab Bikram Bhattacharya, Malay Kumar Kundu, Suman Kumar Mitra, Chivukula Anjaneya Murthy
  • Method of compressing an image
    Patent number: 6738520
    Abstract: Several embodiments in accordance with the invention are disclosed. An embodiment for compressing a gray scale image is described and an embodiment for decompressing the codebook produced by compressing the gray scale image is described. Of course, the invention is not limited to only gray scale images, however.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: May 18, 2004
    Assignee: Intel Corporation
    Inventors: Tinku Acharya, Bhargab Bikram Bhattacharya, Malay Kumar Kundu, Suman Kumar Mitra, Chivukula A. Murthy
  • Method of compressing an image
    Publication number: 20040071350
    Abstract: Several embodiments in accordance with the invention are disclosed. An embodiment for compressing a gray scale image is described and an embodiment for decompressing the codebook produced by compressing the gray scale image is described. Of course, the invention is not limited to only gray scale images, however.
    Type: Application
    Filed: July 28, 2003
    Publication date: April 15, 2004
    Inventors: Tinku Acharya, Bhargab Bikram Bhattacharya, Malay Kumar Kundu, Suman Kumar Mitra, Chivukula A. Murthy
  • Method for block-based digital image watermarking
    Patent number: 6707928
    Abstract: A method of encoding a watermark into a digital image. The method includes partitioning an original image into blocks and then determining a variance value of each block. The blocks are then arranged according to the variance values. A number of selected blocks are identified, where the number depends upon the size of the watermark. The blocks selected are then arranged by their location. Data from the watermark is used to replace bits in a representation of each of the selected blocks with data from the watermark. A method of decoding is also discussed.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: March 16, 2004
    Assignee: Intel Corporation
    Inventors: Tinku Acharya, Bhargab Bikram Bhattacharya, Malay Kumar Kundu, Suman Kumar Mitra, Chivukula Anjaneya Murthy
  • Method for block-based digital image watermarking
    Publication number: 20020090107
    Abstract: A method of encoding a watermark into a digital image. The method includes partitioning an original image into blocks and then determining a variance value of each block. The blocks are then arranged according to the variance values. A number of selected blocks are identified, where the number depends upon the size of the watermark. The blocks selected are then arranged by their location. Data from the watermark is used to replace bits in a representation of each of the selected blocks with data from the watermark. A method of decoding is also discussed.
    Type: Application
    Filed: November 29, 2000
    Publication date: July 11, 2002
    Applicant: Intel Corporation
    Inventors: Tinku Acharya, Bhargab Bikram Bhattacharya, Malay Kumar Kundu, Suman Kumar Mitra, Chivukula Anjaneya Murthy