Patents by Inventor Duan D. Tran

Duan D. Tran 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).

  • Object segmentation at a self-checkout
    Patent number: 8983200
    Abstract: Techniques for segmenting an object are provided. The techniques include capturing an image of an object, dividing the image into one or more blocks, computing a confidence value for each of the one or more blocks, and eliminating one or more blocks from consideration based on the confidence value for each of the one or more blocks.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Charles A. Otto, Sharathchandra Pankanti, Duan D. Tran
  • Object Segmentation at a Self-Checkout
    Publication number: 20140153779
    Abstract: Techniques for segmenting an object are provided. The techniques include capturing an image of an object, dividing the image into one or more blocks, computing a confidence value for each of the one or more blocks, and eliminating one or more blocks from consideration based on the confidence value for each of the one or more blocks.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Charles A. Otto, Sharathchandra Pankanti, Duan D. Tran
  • Object segmentation at a self-checkout
    Patent number: 8744176
    Abstract: Techniques for segmenting an object at a self-checkout are provided. The techniques include capturing an image of an object at a self-checkout, dividing the image into one or more blocks, computing a confidence value for each of the one or more blocks, and eliminating one or more blocks from consideration based on the confidence value for each of the one or more blocks, wherein the one or more blocks remaining map to a region of the image containing the object.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Charles A. Otto, Sharathchandra Pankanti, Duan D. Tran
  • Object Segmentation at a Self-Checkout
    Publication number: 20130230239
    Abstract: Techniques for segmenting an object at a self-checkout are provided. The techniques include capturing an image of an object at a self-checkout, dividing the image into one or more blocks, computing a confidence value for each of the one or more blocks, and eliminating one or more blocks from consideration based on the confidence value for each of the one or more blocks, wherein the one or more blocks remaining map to a region of the image containing the object.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicant: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Charles A. Otto, Sharathchandra Pankanti, Duan D. Tran
  • Object segmentation at a self-checkout
    Patent number: 8488881
    Abstract: Techniques are provided. The techniques include capturing an image of an object at a self-checkout, dividing the image into one or more blocks, computing one or more features of the image, computing a confidence value for each of the one or more blocks, wherein computing a confidence value for each of the one or more blocks comprises using a minimum feature distance from one or more reference background blocks, and eliminating one or more blocks from consideration via use of an adaptive threshold computed on the confidence value for each of the one or more blocks, wherein the one or more blocks remaining map to a region of the image containing the object.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: July 16, 2013
    Assignee: International Business Machines Corporation
    Inventors: Rogerio S. Feris, Charles A. Otto, Sharathchandra Pankanti, Duan D. Tran
  • Object Segmentation at a Self-Checkout
    Publication number: 20120027297
    Abstract: Techniques for segmenting an object at a self-checkout are provided. The techniques include capturing an image of an object at a self-checkout, dividing the image into one or more blocks, computing one or more features of the image, computing a confidence value for each of the one or more blocks, wherein computing a confidence value for each of the one or more blocks comprises using a minimum feature distance from one or more reference backgound blocks, and eliminating one or more blocks from consideration via use of an adaptive threshold computed on the confidence value for each of the one or more blocks, wherein the one or more blocks remaining map to a region of the image containing the object.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 2, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rogerio S. Feris, Charles A. Otto, Sharathchandra Pankanti, Duan D. Tran