Patents by Inventor Alok Gupta

Alok Gupta 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).

  • Patent number: 8121360
    Abstract: A system for computer aided detection and decision support includes an ontology of image representations for injecting meaning into and adding relationships among image contents, an image understanding and parsing module in communication with the ontology of image representations for extracting structures from an image including the image contents, and a reasoning engine based in communication with the ontology and the image understanding and parsing module for classifying the image contents, wherein the system receives the image and corresponding descriptive information.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: February 21, 2012
    Assignees: Siemens Medical Solutions USA, Inc., Siemens Aktiengesellschaft, Siemens Corporation
    Inventors: Xiang Zhou, Alok Gupta, Arun Krishnan, Jörg Freund, Dorin Comaniciu
  • Patent number: 8060178
    Abstract: A system and method for providing decision support to a physician during a medical examination is disclosed. Data is received from a sensor representing a particular medical measurement. The received data includes image data. The received data and context data is analyzed with respect to one or more sets of training models. Probability values for the particular medical measurement and other measurements to be taken are derived based on the analysis and based on identified classes. The received image data is compared with training images. Distance values are determined between the received image data and the training images, and the training images are associated with the identified classes. Absolute value feature sensitivity scores are derived for the particular medical measurement and other measurements to be taken based on the analysis. The probability values, distance values and absolute value feature sensitivity scores are outputted to the user.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: November 15, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Zhou, Dorin Comaniciu, Alok Gupta, Visvanathan Ramesh, Bhavani Duggirala, Diane Paine
  • Publication number: 20110229591
    Abstract: The present invention provides Withania somnifera plant extract and composition comprising the extract useful for the treatment of neurodegenerative disease and/or disorders such as Alzheimers disease (AD). The present invention further provides a process for preparation of the extract.
    Type: Application
    Filed: July 29, 2009
    Publication date: September 22, 2011
    Inventors: Vijayalaksmi Ravindranath, Alok Gupta, Neha Sehgal, Subhash Chand Jain, Suman Thakur, Pankaj Khanna
  • Publication number: 20110216611
    Abstract: A system that calibrates timing relationships between signals involved in performing write operations is described. This system includes a memory controller which is coupled to a set of memory chips, wherein each memory chip includes a phase detector configured to calibrate a phase relationship between a data-strobe signal and a clock signal received at the memory chip from the memory controller during a write operation. Furthermore, the memory controller is configured to perform one or more write-read-validate operations to calibrate a clock-cycle relationship between the data-strobe signal and the clock signal, wherein the write-read-validate operations involve varying a delay on the data-strobe signal relative to the clock signal by a multiple of a clock period.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 8, 2011
    Applicant: RAMBUS INC.
    Inventors: Thomas J. Giovannini, Alok Gupta, Ian Shaeffer, Steven C. Woo
  • Patent number: 7965869
    Abstract: A detection framework that matches anatomical structures using appearance and shape is disclosed. A training set of images are used in which object shapes or structures are annotated in the images. A second training set of images represents negative examples for such shapes and structures, i.e., images containing no such objects or structures. A classification algorithm trained on the training sets is used to detect a structure at its location. The structure is matched to a counterpart in the training set that can provide details about the structure's shape and appearance.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: June 21, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Zhou, Bogdan Georgescu, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Publication number: 20110142320
    Abstract: A system for providing automatic diagnosis and decision support includes: a medical image database; generative learning and modeling modules that build distributional appearance models and spatial relational models of organs or structures using images from the medical image database; a statistical whole-body atlas that includes one or more distributional appearance models and spatial relational models of organs or structure, in one or more whole-body imaging modalities, built by the generative learning and modeling modules; and discriminative learning and modeling modules that build two-class or multi-class classifiers for performing at least one of organ, structure or disease detection or segmentation.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 16, 2011
    Applicant: SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventors: Alok Gupta, Arun Krishnan, Xiang Sean Zhou
  • Patent number: 7912528
    Abstract: CAD (computer-aided diagnosis) systems and applications for cardiac imaging are provided, which implement methods to automatically extract and analyze features from a collection of patient information (including image data and/or non-image data) of a subject patient, to provide decision support for various aspects of physician workflow including, for example, automated assessment of regional myocardial function through wall motion analysis, automated diagnosis of heart diseases and conditions such as cardiomyopathy, coronary artery disease and other heart-related medical conditions, and other automated decision support functions. The CAD systems implement machine-learning techniques that use a set of training data obtained (learned) from a database of labeled patient cases in one or more relevant clinical domains and/or expert interpretations of such data to enable the CAD systems to “learn” to analyze patient data and make proper diagnostic assessments and decisions for assisting physician workflow.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: March 22, 2011
    Assignees: Siemens Medical Solutions USA, Inc., Siemens Corporation
    Inventors: Sriram Krishnan, Alok Gupta, R. Bharat Rao, Dorin Comaniciu, Xiang Sean Zhou
  • Patent number: 7876934
    Abstract: A method for segmenting an anatomical structure of interest within an image is disclosed. The anatomical structure of interest is compared to a database of images of like anatomical structures. Those database images of like anatomical structures that are similar to the anatomical structure of interest are identified. The identified database images are used to detect the anatomical structure of interest in the image. The identified database images are also used to determine the shape of the anatomical structure of interest. The anatomical structure of interest is segmented from the image.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: January 25, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Bogdan Georgescu, Xiang Zhou, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Patent number: 7792778
    Abstract: A system for knowledge-based image computer aided detection includes a text interpretation system receiving an electronic patient record and outputting an assertion relevant for the electronic patient record, an annotation/detection system detects anatomical and functional structures in input images and interacts with the text interpretation system to receive the assertion and outputting annotated images based on the input images, and an imaging decision support system taking the annotated images and outputting classifications of annotated structures in the annotated images.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: September 7, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Zhou, Alok Gupta, Arun Krishnan
  • Patent number: 7747054
    Abstract: A detection framework that matches anatomical structures using appearance and shape is disclosed. A training set of images are used in which object shapes or structures are annotated in the images. A second training set of images represents negative examples for such shapes and structures, i.e., images containing no such objects or structures. A classification algorithm trained on the training sets is used to detect a structure at its location. The structure is matched to a counterpart in the training set that can provide details about the structure's shape and appearance.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: June 29, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Zhou, Bogdan Georgescu, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Patent number: 7724930
    Abstract: A method of automatic change quantification for medical decision support includes: automatically detecting a structure in a set of medical images; characterizing the detected structure including modeling of deformation characteristics of the detected structure; matching images based on the characterization of the detected structure, wherein a size measure of the detected structure is constrained according to the deformation characteristics; and quantifying a change in the detected structure.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 25, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Zhou, Arun Krishnan, Alok Gupta, Vaclav Potesil
  • Patent number: 7672495
    Abstract: A method and an apparatus display marks in an image data set, wherein an image data set comprising marks is provided and wherein during a review phase not all marks within the image data set are displayed at the same time. A list of the marks can be generated by sorting the marks depending on a predetermined sorting criterion and wherein the marks are displayed temporally one after another within the image data set in accordance with the generated list. The image data set is for example a medical image data set, wherein the marks are computer-aided detection (CAD) marks and wherein the sorting criterion is the probability of marking illness, in particular the suspiciousness.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: March 2, 2010
    Assignee: MeVis BreastCare GmbH & Co. KG
    Inventors: Carl J. G. Evertsz, Anke Bodicker, Sriram Krishnan, Balaji Krishnapuram, R. Bharat Rao, Dennis O'Dell, Alok Gupta
  • Publication number: 20090226040
    Abstract: A detection framework that matches anatomical structures using appearance and shape is disclosed. A training set of images are used in which object shapes or structures are annotated in the images. A second training set of images represents negative examples for such shapes and structures, i.e., images containing no such objects or structures. A classification algorithm trained on the training sets is used to detect a structure at its location. The structure is matched to a counterpart in the training set that can provide details about the structure's shape and appearance.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 10, 2009
    Applicants: Siemens Corporate Research, Inc., Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Sean Zhou, Bogdan Georgescu, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Publication number: 20090226081
    Abstract: A detection framework that matches anatomical structures using appearance and shape is disclosed. A training set of images are used in which object shapes or structures are annotated in the images. A second training set of images represents negative examples for such shapes and structures, i.e., images containing no such objects or structures. A classification algorithm trained on the training sets is used to detect a structure at its location. The structure is matched to a counterpart in the training set that can provide details about the structure's shape and appearance.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 10, 2009
    Applicants: Siemens Corporate Research, Inc., Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Sean Zhou, Bogdan Georgescu, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Publication number: 20090207195
    Abstract: In one embodiment, a video signal is displayed on a display screen in two or more resolutions. The video signal may be of a first resolution and the display screen may be set to a second resolution. In one embodiment, the video signal resolution is of a size that is greater than the size of the display screen resolution. The method includes displaying a first portion of the video signal in a first resolution in a first region of the display. A second portion of the video signal is then displayed in a second resolution in a second region of the display. The second resolution is a resolution that displays at least a portion of the video signal that would be off screen if the video signal is displayed in the first resolution. Accordingly, more of the signal can be displayed on the screen.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 20, 2009
    Applicant: OQO, INC.
    Inventors: Vance Chin, Brandon Sneed, Joe Betts LaCroix, Alok Gupta, Richard Pocklington
  • Publication number: 20090161453
    Abstract: A system that calibrates timing relationships between signals involved in performing write operations is described. This system includes a memory controller which is coupled to a set of memory chips, wherein each memory chip includes a phase detector configured to calibrate a phase relationship between a data-strobe signal and a clock signal received at the memory chip from the memory controller during a write operation. Furthermore, the memory controller is configured to perform one or more write-read-validate operations to calibrate a clock-cycle relationship between the data-strobe signal and the clock signal, wherein the write-read-validate operations involve varying a delay on the data-strobe signal relative to the clock signal by a multiple of a clock period.
    Type: Application
    Filed: March 17, 2008
    Publication date: June 25, 2009
    Applicant: RAMBUS INC.
    Inventors: Thomas J. Giovannini, Alok Gupta, Ian Shaeffer, Steven C. Woo
  • Patent number: 7536044
    Abstract: A detection framework that matches anatomical structures using appearance and shape is disclosed. A training set of images are used in which object shapes or structures are annotated in the images. A second training set of images represents negative examples for such shapes and structures, i.e., images containing no such objects or structures. A classification algorithm trained on the training sets is used to detect a structure at its location. The structure is matched to a counterpart in the training set that can provide details about the structure's shape and appearance.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: May 19, 2009
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Sean Zhou, Bogdan Georgescu, Dorin Comaniciu, R. Bharat Rao, Alok Gupta
  • Publication number: 20090080732
    Abstract: A system and method for providing decision support to a physician during a medical examination is disclosed. Data is received from a sensor representing a particular medical measurement. The received data includes image data. The received data and context data is analyzed with respect to one or more sets of training models. Probability values for the particular medical measurement and other measurements to be taken are derived based on the analysis and based on identified classes. The received image data is compared with training images. Distance values are determined between the received image data and the training images, and the training images are associated with the identified classes. Absolute value feature sensitivity scores are derived for the particular medical measurement and other measurements to be taken based on the analysis. The probability values, distance values and absolute value feature sensitivity scores are outputted to the user.
    Type: Application
    Filed: October 1, 2008
    Publication date: March 26, 2009
    Applicant: Siemens Corporate Research, Inc.
    Inventors: Xiang Sean Zhou, Dorin Comaniciu, Alok Gupta, Visvanathan Ramesh, Bhavani Duggirala, Diane Paine
  • Patent number: 7458936
    Abstract: A system and method for providing decision support to a physician during a medical examination is disclosed. Data is received from a sensor representing a particular medical measurement. The received data includes image data. The received data and context data is analyzed with respect to one or more sets of training models. Probability values for the particular medical measurement and other measurements to be taken are derived based on the analysis and based on identified classes. The received image data is compared with training images. Distance values are determined between the received image data and the training images, and the training images are associated with the identified classes. Absolute value feature sensitivity scores are derived for the particular medical measurement and other measurements to be taken based on the analysis. The probability values, distance values and absolute value feature sensitivity scores are outputted to the user.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: December 2, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Xiang Sean Zhou, Dorin Comaniciu, Alok Gupta, Visvanathan Ramesh, Bhavani Duggirala, Diane Paine
  • Patent number: 7391893
    Abstract: A system and method for detecting a shape in an image are provided. The method comprises: constructing a deformable model from an image; deforming the deformable model to remove an undesired shape in a portion of the image; computing properties of the deformed model to enable detection of a desired shape in the portion of the image; and detecting the desired shape based on the computed properties.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: June 24, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jianming Liang, Luca Bogoni, Alok Gupta