Patents by Inventor Dev Sharma

Dev Sharma 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).

  • Publication number: 20240153164
    Abstract: An apparatus for reconstructing or filtering medical image data is provided. The apparatus includes processing circuitry to receive a first medical image data and meta-parameters related to the first medical image data; apply the received meta-parameters to inputs of a first trained machine-learning (ML) network, e.g., a multilayer perceptron, to obtain, from outputs of the first trained ML network, tuning parameters of a second ML network (e.g., a convolutional neural network) different from the first ML network; apply the received first medical image data to inputs of the second ML network, as tuned by the obtained tuning parameters output from the first ML network, to obtain, from outputs of the second ML network, second medical image data; and output the second medical image data. In one embodiment, the first medical image data is magnetic-resonance k-space data and the second medical data is a magnetic-resonance image.
    Type: Application
    Filed: November 3, 2023
    Publication date: May 9, 2024
    Applicants: UNIVERSITY OF IOWA RESEARCH FOUNDATION, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Mathews JACOB, Aniket PRAMANIK, Samir Dev SHARMA
  • Publication number: 20240062219
    Abstract: A computer-implemented method for augmenting customer support is disclosed in which a granular taxonomy is formed to classify tickets based on customer issue topic. A dashboard and user interface of performance metrics may be generated for the topics in the taxonomy. Recommendations may also be generated to aid servicing customer support issues for topics in the taxonomy. This may include generating information to aid in determining topics for generating automated responses or generating recommended answers for particular topics. In some implementations, an archive of historic tickets is used to generate training data for a machine learning model to classify tickets.
    Type: Application
    Filed: September 1, 2023
    Publication date: February 22, 2024
    Inventors: Sami Goche, EJ Liao, Jude Khouja, Dev Sharma, Yi Lu, James Man, Sambhav Galada, Carolyn Sun, Holman Yuen, Sunny Kong, Weitian Xing, Antoine Nasr, Dustin Kiselbach, Andrew Kim, Andrew Laird, Lewin Gan, Nick Carter, Salina Wu, Madeline Wu, Jad Chamoun, Deon Nicholas
  • Patent number: 11861766
    Abstract: An apparatus for incremental motion correction in medical imaging. The apparatus for motion correction in magnetic resonance imaging includes processing circuitry configured to estimate an intermediate image from a first section of k-space, the first section of the k-space corresponding to acquisition time points within a magnetic resonance scan of a subject, the corresponding acquisition time points within the magnetic resonance scan being associated with shots of the k-space determined to have minimal motion, estimate motion parameters of a second section of the k-space using the estimated intermediate image, combine data from the first section of the k-space with data from the second section of the k-space according to the estimated motion parameters, and reconstruct the combined data of the k-space to generate a final image.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: January 2, 2024
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew J. Wheaton, Anuj Sharma, Samir Dev Sharma
  • Publication number: 20230297965
    Abstract: Disclosed embodiments provide a framework for processing sets of credentials in real-time using machine learning models to identify requisitions that can be recommended to users. In response to receiving a set of credentials from a user, a system assigns a classification to the set of credentials based on a set of characteristics associated with the set of credentials. A machine learning model is used to assign tags to the text of the set of credentials. These tags correspond to the set of characteristics. Using these tags, a set of open requisitions are identified and provided to the user.
    Type: Application
    Filed: March 16, 2023
    Publication date: September 21, 2023
    Applicant: LIVEPERSON, INC.
    Inventors: Dev Sharma, Marco Ambrosio, Sam Kirby
  • Publication number: 20230284995
    Abstract: The present disclosure relates to a method and apparatus correcting a metal artifact in magnetic resonance imaging (MRI) data. The method and apparatus acquire plural slices along a slice direction of a scanned region associated with a body part, estimate a spatial extent of a signal dispersion of the acquired plural slices along the slice direction, and combine the signal of the acquired plural slices along the slice direction based on the estimated spatial extent of the signal dispersion to generate a reconstructed image of the scanned region.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 14, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Samir Dev SHARMA
  • Publication number: 20230111356
    Abstract: A method for selection of a marker in an augmented reality (AR) environment is provided. The method includes capturing a scene in the augmented reality environment; extracting a set of region of interest from the scene captured; identifying a text in the region of interest or from a document associated to the region of interest; determining a set of phrase-action pairs from the text; generating a representation of a set of region of interest and a representation of a set of phrase-action pairs; calculating inter model similarity using the set of region of interest and the set of phrase-action pairs in common embedding space; computing intra model similarity by comparing the extracted ROI with a generated ROI and the extracted phrase-action with generated phrase actions; and selecting a phrase-action-ROI tuple having the highest intra modal similarity as the marker.
    Type: Application
    Filed: September 20, 2022
    Publication date: April 13, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ashima JAIN, Ruchika Saxena, Maneesh Jain, Sachin Dev Sharma
  • Publication number: 20230082616
    Abstract: An apparatus for incremental motion correction in medical imaging. The apparatus for motion correction in magnetic resonance imaging includes processing circuitry configured to estimate an intermediate image from a first section of k-space, the first section of the k-space corresponding to acquisition time points within a magnetic resonance scan of a subject, the corresponding acquisition time points within the magnetic resonance scan being associated with shots of the k-space determined to have minimal motion, estimate motion parameters of a second section of the k-space using the estimated intermediate image, combine data from the first section of the k-space with data from the second section of the k-space according to the estimated motion parameters, and reconstruct the combined data of the k-space to generate a final image.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 16, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew J. WHEATON, Anuj SHARMA, Samir Dev SHARMA
  • Patent number: 11536791
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a processing circuit. The processing circuit acquires a plurality of echo signals not to be encoded corresponding to a plurality of respective shots about acquisition of a plurality of echo signals having been encoded by magnetic resonance imaging for a subject, compares the echo signals not to be encoded with each other about the shots, and identifies a shot to be removed about generation of a magnetic resonance image about the subject out of the shots based on a comparison result of the echo signals not to be encoded.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: December 27, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Masahito Nambu, Samir Dev Sharma, Anuj Sharma
  • Patent number: 11514622
    Abstract: An apparatus for incremental motion correction in medical imaging. The apparatus for motion correction in magnetic resonance imaging includes processing circuitry configured to estimate an intermediate image from a first section of k-space, the first section of the k-space corresponding to acquisition time points within a magnetic resonance scan of a subject, the corresponding acquisition time points within the magnetic resonance scan being associated with shots of the k-space determined to have minimal motion, estimate motion parameters of a second section of the k-space using the estimated intermediate image, combine data from the first section of the k-space with data from the second section of the k-space according to the estimated motion parameters, and reconstruct the combined data of the k-space to generate a final image.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: November 29, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew J. Wheaton, Anuj Sharma, Samir Dev Sharma
  • Patent number: 11389077
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 19, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew James Wheaton, Antonios Matakos, Samir Dev Sharma
  • Publication number: 20220198399
    Abstract: Disclosed embodiments provide a framework to facilitate recruitment and processing of applicants. A bot recruiting agent is implemented that engages in a communications session with applicants to solicit responses to questions for a job opening. The responses are scored according to a set of metrics and a fitness score for each applicant is provided. Based on the fitness score, a recommendation for advancing an applicant for the job opening is generated.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 23, 2022
    Applicant: LIVEPERSON, INC.
    Inventors: Dev Sharma, Marco Ambrosio, Sam Kirby
  • Publication number: 20220172410
    Abstract: An apparatus for incremental motion correction in medical imaging. The apparatus for motion correction in magnetic resonance imaging includes processing circuitry configured to estimate an intermediate image from a first section of k-space, the first section of the k-space corresponding to acquisition time points within a magnetic resonance scan of a subject, the corresponding acquisition time points within the magnetic resonance scan being associated with shots of the k-space determined to have minimal motion, estimate motion parameters of a second section of the k-space using the estimated intermediate image, combine data from the first section of the k-space with data from the second section of the k-space according to the estimated motion parameters, and reconstruct the combined data of the k-space to generate a final image.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew J. WHEATON, Anuj SHARMA, Samir Dev SHARMA
  • Publication number: 20210365800
    Abstract: A computing apparatus including a memory storing at least one instruction; and at least one processor configured to execute the at least one instruction to: obtain terminal user property information based on data received from a terminal and a knowledge graph; and compare the terminal user property information with content property information to search for a potential customer.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Rajasimhan BASKAR, Sachin dev SHARMA
  • Publication number: 20210315475
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Application
    Filed: May 6, 2021
    Publication date: October 14, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew James WHEATON, Antonios MATAKOS, Samir Dev SHARMA
  • Patent number: 11064901
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: July 20, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew James Wheaton, Antonios Matakos, Samir Dev Sharma
  • Patent number: 10884087
    Abstract: A method and apparatuses are provided to perform chemical species separation in magnetic resonance (MR) imaging (MRI). At least three MR images corresponding respectively to different echo times are obtained and represent signals from multiple chemical species including a first species and a second species in a tissue. A plurality of dual-echo pairs is selected from the at least three MR images. For each pair, a set of dual-echo separated images including a B0 field map, a first image for the first species, and a second image for the second species is estimated. An initial set of combined images including at least one of: an initial combined B0 field map, first, and second image is generated by combining at least one of: two or more of the B0 field maps, two or more of the first images, and two or more of the second images.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: January 5, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Samir Dev Sharma
  • Publication number: 20200305756
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: Canon Medical Systems Corporation
    Inventors: Andrew James Wheaton, Antonios Matakos, Samir Dev Sharma
  • Publication number: 20200278406
    Abstract: A method and apparatuses are provided to perform chemical species separation in magnetic resonance (MR) imaging (MRI). At least three MR images corresponding respectively to different echo times are obtained and represent signals from multiple chemical species including a first species and a second species in a tissue. A plurality of dual-echo pairs is selected from the at least three MR images. For each pair, a set of dual-echo separated images including a B0 field map, a first image for the first species, and a second image for the second species is estimated. An initial set of combined images including at least one of: an initial combined B0 field map, first, and second image is generated by combining at least one of: two or more of the B0 field maps, two or more of the first images, and two or more of the second images.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 3, 2020
    Applicant: Canon Medical Systems Corporation
    Inventor: Samir Dev SHARMA
  • Patent number: D808408
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: January 23, 2018
    Assignee: SAP SE
    Inventors: Jens Bombolowsky, Dev Sharma
  • Patent number: D810767
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: February 20, 2018
    Assignee: SAP SE
    Inventors: Dev Sharma, Sabine Finke, Jen Bombolowsky