Patents by Inventor Ruhan Sa

Ruhan Sa 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: 11972585
    Abstract: Machine learning is used to train a network to estimate a three-dimensional (3D) body surface and body regions of a patient from surface images of the patient. The estimated 3D body surface of the patient is used to determine an isocenter of the patient. The estimated body regions are used to generate heatmaps representing visible body region boundaries and unseen body region boundaries of the patient. The estimation of 3D body surfaces, the determined patient isocenter, and the estimated body region boundaries may assist in planning a medical scan, including automatic patient positioning.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: April 30, 2024
    Assignee: Siemens Healthineers AG
    Inventors: Yao-Jen Chang, Jiangping Wang, Vivek Singh, Ruhan Sa, Ankur Kapoor, Andreas Wimmer
  • Publication number: 20230368404
    Abstract: Machine learning is used to train a network to estimate a three-dimensional (3D) body surface and body regions of a patient from surface images of the patient. The estimated 3D body surface of the patient is used to determine an isocenter of the patient. The estimated body regions are used to generate heatmaps representing visible body region boundaries and unseen body region boundaries of the patient. The estimation of 3D body surfaces, the determined patient isocenter, and the estimated body region boundaries may assist in planning a medical scan, including automatic patient positioning.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 16, 2023
    Inventors: Yao-Jen Chang, Jiangping Wang, Vivek Singh, Ruhan Sa, Ankur Kapoor, Andreas Wimmer
  • Patent number: 11748899
    Abstract: Machine learning is used to train a network to estimate a three-dimensional (3D) body surface and body regions of a patient from surface images of the patient. The estimated 3D body surface of the patient is used to determine an isocenter of the patient. The estimated body regions are used to generate heatmaps representing visible body region boundaries and unseen body region boundaries of the patient. The estimation of 3D body surfaces, the determined patient isocenter, and the estimated body region boundaries may assist in planning a medical scan, including automatic patient positioning.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: September 5, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Yao-Jen Chang, Jiangping Wang, Vivek Kumar Singh, Ruhan Sa, Ankur Kapoor, Andreas Wimmer
  • Patent number: 11734849
    Abstract: Patient biographic data may be estimated by receiving patient image data, applying the patient image data to a machine learned model, the machine learned model trained on second patient data and trained to map the second patient data to associated biographic data using machine learned features, generating the patient biographic data based on the applying and the machine learned features, and outputting the patient biographic data. The patient biographic data may include a patient weight, a patient height, a patient gender, and a patient age.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: August 22, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Ruhan Sa, Birgi Tamersoy, Yao-jen Chang, Klaus Kirchberg, Vivek Singh, Ankur Kapoor, Andreas Wimmer
  • Publication number: 20230248268
    Abstract: Camera-based respiratory triggered medical scanning is provided. A camara captures an image or images of a patient. A processor detects breathing from the camera image or images. Detected breathing is used to automatically trigger the medical scan. An extra breathing sensor is not needed. Manual monitoring is not relied upon.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 10, 2023
    Inventors: Ruhan Sa, Vivek Singh, Ankur Kapoor
  • Patent number: 11717233
    Abstract: Systems and methods for assessing a disease are provided. An input medical image in a first modality is received. Lungs are segmented from the input medical image using a trained lung segmentation network and abnormality patterns associated with the disease are segmented from the input medical image using a trained abnormality pattern segmentation network. The trained lung segmentation network and the trained abnormality pattern segmentation network are trained based on 1) synthesized images in the first modality generated from training images in a second modality and 2) target segmentation masks for the synthesized images generated from training segmentation masks for the training images. An assessment of the disease is determined based on the segmented lungs and the segmented abnormality patterns.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: August 8, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Florin-Cristian Ghesu, Siqi Liu, Awais Mansoor, Sasa Grbic, Sebastian Vogt, Dorin Comaniciu, Ruhan Sa, Zhoubing Xu
  • Patent number: 11703373
    Abstract: For patient weight estimation in a medical imaging system, a patient model, such as a mesh, is fit to a depth image. One or more feature values are extracted from the fit patient model, reducing the noise and clutter in the values. The weight estimation is regressed from the extracted features.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: July 18, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Ruhan Sa, Birgi Tamersoy, Yao-jen Chang, Klaus J. Kirchberg, Vivek Kumar Singh, Terrence Chen
  • Patent number: 11547323
    Abstract: For patient model estimation from surface data in a medical system, a stream or sequence of depth camera captures are performed. The fitting of the patient model is divided between different times or parts of the sequence, using the streaming capture to distribute processing and account for patient movement. Less manual involvement may be needed due to the regular availability of image captures. Subsequent fitting may benefit from previous fitting.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: January 10, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Santosh Pai, Klaus Kirchberg, Vivek Singh, Ruhan Sa, Andreas Wimmer, Ankur Kapoor
  • Publication number: 20220022818
    Abstract: Systems and methods for assessing a disease are provided. An input medical image in a first modality is received. Lungs are segmented from the input medical image using a trained lung segmentation network and abnormality patterns associated with the disease are segmented from the input medical image using a trained abnormality pattern segmentation network. The trained lung segmentation network and the trained abnormality pattern segmentation network are trained based on 1) synthesized images in the first modality generated from training images in a second modality and 2) target segmentation masks for the synthesized images generated from training segmentation masks for the training images. An assessment of the disease is determined based on the segmented lungs and the segmented abnormality patterns.
    Type: Application
    Filed: July 21, 2020
    Publication date: January 27, 2022
    Inventors: Florin-Cristian Ghesu, Siqi Liu, Awais Mansoor, Sasa Grbic, Sebastian Vogt, Dorin Comaniciu, Ruhan Sa, Zhoubing Xu
  • Publication number: 20210287368
    Abstract: Patient biographic data may be estimated by receiving patient image data, applying the patient image data to a machine learned model, the machine learned model trained on second patient data and trained to map the second patient data to associated biographic data using machine learned features, generating the patient biographic data based on the applying and the machine learned features, and outputting the patient biographic data. The patient biographic data may include a patient weight, a patient height, a patient gender, and a patient age.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 16, 2021
    Inventors: Ruhan Sa, Birgi Tamersoy, Yao-jen Chang, Klaus Kirchberg, Vivek Singh, Ankur Kapoor, Andreas Wimmer
  • Publication number: 20210251516
    Abstract: For patient model estimation from surface data in a medical system, a stream or sequence of depth camera captures are performed. The fitting of the patient model is divided between different times or parts of the sequence, using the streaming capture to distribute processing and account for patient movement. Less manual involvement may be needed due to the regular availability of image captures. Subsequent fitting may benefit from previous fitting.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 19, 2021
    Inventors: Santosh Pai, Klaus Kirchberg, Vivek Singh, Ruhan Sa, Andreas Wimmer, Ankur Kapoor
  • Patent number: 10783655
    Abstract: A method of obtaining a medical image includes obtaining, via a camera, at least one surface image of a patient. A pose of the patient is determined from the at least one surface image of the patient using at least one spatial information module. The patient is positioned, via a moveable bed, to an imaging start position and a medical image of the patient is obtained using a medical imaging modality.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: September 22, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Zhuokai Zhao, Yao-jen Chang, Ruhan Sa, Kai Ma, Jianping Wang, Vivek Kumar Singh, Terrence Chen, Andreas Wimmer, Birgi Tamersoy
  • Publication number: 20200271507
    Abstract: For patient weight estimation in a medical imaging system, a patient model, such as a mesh, is fit to a depth image. One or more feature values are extracted from the fit patient model, reducing the noise and clutter in the values. The weight estimation is regressed from the extracted features.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 27, 2020
    Inventors: Ruhan Sa, Birgi Tamersoy, Yao-jen Chang, Klaus J. Kirchberg, Vivek Kumar Singh, Terrence Chen
  • Publication number: 20200258243
    Abstract: Machine learning is used to train a network to estimate a three-dimensional (3D) body surface and body regions of a patient from surface images of the patient. The estimated 3D body surface of the patient is used to determine an isocenter of the patient. The estimated body regions are used to generate heatmaps representing visible body region boundaries and unseen body region boundaries of the patient. The estimation of 3D body surfaces, the determined patient isocenter, and the estimated body region boundaries may assist in planning a medical scan, including automatic patient positioning.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Inventors: Yao-jen Chang, Jiangping Wang, Vivek Kumar Singh, Ruhan Sa, Ankur Kapoor, Andreas Wimmer
  • Publication number: 20190318497
    Abstract: A method of obtaining a medical image includes obtaining, via a camera, at least one surface image of a patient. A pose of the patient is determined from the at least one surface image of the patient using at least one spatial information module. The patient is positioned, via a moveable bed, to an imaging start position and a medical image of the patient is obtained using a medical imaging modality.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 17, 2019
    Inventors: Zhuokai Zhao, Yao-jen Chang, Ruhan Sa, Kai Ma, Jianping Wang, Vivek Kumar Singh, Terrence Chen, Andreas Wimmer, Birgi Tamersoy