Patents by Inventor Hariharan Ravishankar

Hariharan Ravishankar 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: 11972593
    Abstract: Systems and methods are provided for quantifying uncertainty of segmentation mask predictions made by machine learning models, where the uncertainty may be used to streamline an anatomical measurement workflow by automatically identifying less certain caliper placements. In one example, the current disclosure teaches receiving an image including a region of interest, determining a segmentation mask for the region of interest using a trained machine learning model, placing a caliper at a position within the image based on the segmentation mask, determining an uncertainty of the position of the caliper, and responding to the uncertainty of the position of the caliper being greater than a pre-determined threshold by displaying a visual indication of the position of the caliper via a display device and prompting a user to confirm or edit the position of the caliper.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: April 30, 2024
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Hariharan Ravishankar, Pavan Annangi
  • Publication number: 20230386676
    Abstract: The disclosure relates generally to a patient monitoring device and, more particularly, to improved system and method to detect a false alarm in a patient monitoring device. The disclosure specifically relates to a system and a method to detect a false alarm in a patient monitoring device. The system may include a patient monitoring device configured to receive a patient monitoring data from a patient. The system may enable the processing of the patient monitoring data by a processing device to determine a false alarm generated by the patient monitoring device. The system may further provide a user-interface, which may be configured to filter a true alarm from a false alarm generated by the patient monitoring device.
    Type: Application
    Filed: May 5, 2023
    Publication date: November 30, 2023
    Inventors: Hariharan Ravishankar, Rohan Patil, Abhijit Patil
  • Patent number: 11790279
    Abstract: A method for controlling a physical process includes receiving an input dataset corresponding to the physical process. The method further includes determining a data model based on the input dataset. The data model includes a plurality of latent space variables of a machine learning model. The method also includes receiving a plurality of reference models corresponding to a plurality of classes. Each of the plurality of reference models includes a corresponding plurality of latent space variables. The method includes comparing the data model with each of the plurality of reference models to generate a plurality of distance metric values. The method further includes selecting a reference model among the plurality of reference models based on the plurality of distance metric values. The method also includes controlling the physical process based on the selected reference model.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: October 17, 2023
    Assignee: General Electric Company
    Inventors: Arathi Sreekumari, Radhika Madhavan, Suresh Emmanuel Joel, Hariharan Ravishankar
  • Publication number: 20230290487
    Abstract: Methods and systems are provided for reconstructing images from measurement data using one or more deep neural networks according to a decimation strategy. In one embodiment, a method for reconstructing an image using measurement data comprises, receiving measurement data acquired by an imaging device, selecting a decimation strategy, producing a reconstructed image from the measurement data using the decimation strategy and one or more deep neural networks, and displaying the reconstructed image via a display device. By decimating measurement data to form one or more decimated measurement data arrays, a computational complexity of mapping the measurement data to image data may be reduced from O(N4), where N is the size of the measurement data, to O(M4), where M is the size of an individual decimated measurement data array, wherein M<N.
    Type: Application
    Filed: May 18, 2023
    Publication date: September 14, 2023
    Inventors: Hariharan Ravishankar, Dattesh Dayanand Shanbhag
  • Publication number: 20230238134
    Abstract: Methods and systems are provided for predicting cardiac arrhythmias based on multi-modal patient monitoring data via deep learning. In an example, a method may include predicting an imminent onset of a cardiac arrhythmia in a patient, before the cardiac arrhythmia occurs, by analyzing patient monitoring data via a multi-arm deep learning model, outputting an arrhythmia event in response to the prediction, and outputting a report indicating features of the patient monitoring data contributing to the prediction. In this way, the multi-arm deep learning model may predict cardiac arrhythmias before their onset.
    Type: Application
    Filed: January 25, 2022
    Publication date: July 27, 2023
    Inventors: Hariharan Ravishankar, Rohan Keshav Patil, Abhijit Patil, Heikki Paavo Aukusti Vaananen
  • Patent number: 11699515
    Abstract: Methods and systems are provided for reconstructing images from measurement data using one or more deep neural networks according to a decimation strategy. In one embodiment, a method for reconstructing an image using measurement data comprises, receiving measurement data acquired by an imaging device, selecting a decimation strategy, producing a reconstructed image from the measurement data using the decimation strategy and one or more deep neural networks, and displaying the reconstructed image via a display device. By decimating measurement data to form one or more decimated measurement data arrays, a computational complexity of mapping the measurement data to image data may be reduced from O(N4), where N is the size of the measurement data, to O(M4), where M is the size of an individual decimated measurement data array, wherein M<N.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: July 11, 2023
    Assignee: GE Precision Healthcare LLC
    Inventors: Hariharan Ravishankar, Dattesh Dayanand Shanbhag
  • Publication number: 20230181082
    Abstract: Methods and systems are provided for determining a phase shift and noise insensitive similarity metric for electrocardiogram (ECG) beats in a Holter monitor recording. In one embodiment, a method includes selecting a first beat and a second beat recorded via one or more Holter monitors, determining a dynamic time warping (DTW) distance between the first beat and the second beat, setting a similarity label for the first beat and the second beat based on the DTW distance, and storing the first beat, the second beat, and the similarity label, in a location of non-transitory memory as an ECG training data triad, and training a machine learning model with the ECG training data triad.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Inventors: Hariharan Ravishankar, Rahul Venkataramani
  • Patent number: 11651584
    Abstract: A system is presented. The system includes an acquisition subsystem configured to obtain images corresponding to a target domain. Moreover, the system includes a processing subsystem in operative association with the acquisition subsystem and including a memory augmented domain adaptation platform configured to compute one or more features of an input image corresponding to a target domain, identify a set of support images based on the features of the input image, where the set of support images corresponds to the target domain, augment an input to a machine-learnt model with a set of features, a set of masks, or both corresponding to the set of support images to adapt the machine-learnt model to the target domain, and generate an output based at least on the set of features, the set of masks, or both. Additionally, the system includes an interface unit configured to present the output for analysis.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 16, 2023
    Assignee: General Electric Company
    Inventors: Rahul Venkataramani, Rakesh Mullick, Sandeep Kaushik, Hariharan Ravishankar, Sai Hareesh Anamandra
  • Publication number: 20230135351
    Abstract: Systems and methods are provided for quantifying uncertainty of segmentation mask predictions made by machine learning models, where the uncertainty may be used to streamline an anatomical measurement workflow by automatically identifying less certain caliper placements. In one example, the current disclosure teaches receiving an image including a region of interest, determining a segmentation mask for the region of interest using a trained machine learning model, placing a caliper at a position within the image based on the segmentation mask, determining an uncertainty of the position of the caliper, and responding to the uncertainty of the position of the caliper being greater than a pre-determined threshold by displaying a visual indication of the position of the caliper via a display device and prompting a user to confirm or edit the position of the caliper.
    Type: Application
    Filed: November 2, 2021
    Publication date: May 4, 2023
    Inventors: Hariharan Ravishankar, Pavan Annangi
  • Patent number: 11605455
    Abstract: The subject matter discussed herein relates to systems and methods for generating a clinical outcome based on creating a task-specific model associated with processing raw image(s). In one such example, input raw data is acquired using an imaging system, a selection input corresponding to a clinical task is received, and a task-specific model corresponding to the clinical task is retrieved. Using the task-specific model, the raw data is mapped onto an application specific manifold. Based on the mapping of the raw data onto the application specific manifold the clinical outcome is generated, and subsequently providing the clinical outcome for review.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 14, 2023
    Assignee: GE Precision Healthcare LLC
    Inventors: Dattesh Dayanand Shanbhag, Hariharan Ravishankar, Rahul Venkataramani
  • Patent number: 11589828
    Abstract: Methods and systems are provided for automatically determining a phase shift and noise insensitive similarity metric for electrocardiogram (ECG) beats in a Holter monitor recording. In one embodiment, a deep neural network may be trained to map an ECG beat to a phase shift insensitive and noise insensitive feature space embedding using a training data triad, wherein the training data triad may be produced by a method comprising: selecting a first beat and a second beat recorded via one or more Holter monitors, determining a dynamic time warping (DTW) distance between the first beat and the second beat, setting a similarity label for the first beat and the second beat based on the DTW distance, and storing the first beat, the second beat, and the similarity label, in a location of non-transitory memory as an ECG training data triad.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: February 28, 2023
    Assignee: GE Precision Healthcare LLC
    Inventors: Hariharan Ravishankar, Rahul Venkataramani
  • Patent number: 11580384
    Abstract: The present approach relates to a system capable of life-long learning in a deep learning context. The system includes a deep learning network configured to process an input dataset and perform one or more tasks from among a first set of tasks. As an example, the deep learning network may be part of an imaging system, such as a medical imaging system, or may be used in industrial applications. The system further includes a learning unit communicatively coupled to the deep learning network 102 and configured to modify the deep learning network so as to enable it to perform one or more tasks in a second task list without losing the ability to perform the tasks from the first list.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: February 14, 2023
    Assignee: GE Precision Healthcare LLC
    Inventors: Rahul Venkataramani, Sai Hareesh Anamandra, Hariharan Ravishankar, Prasad Sudhakar
  • Publication number: 20230031328
    Abstract: Systems and techniques for monitoring, predicting and/or alerting for short-term oxygen support needs of patients are presented. A system can include a data collection component that receives multimodal patient data for a patient having a respiratory condition in association with monitoring and treating the respiratory condition in real-time, the multimodal patient data comprising at least physiological data regarding physiological parameters tracked for the patient over a period of time, and current oxygen support data regarding a current oxygen support mechanism of the patient.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 2, 2023
    Inventors: Hariharan Ravishankar, Abhijit Patil, Rohit Pardasani, Dirk Johannes Varelmann, Pankaj Sarin, Marcio Aloisio Bezerra Cavalcanti Rockenbach, Quanzheng Li
  • Publication number: 20220366321
    Abstract: A method for controlling a physical process includes receiving an input dataset corresponding to the physical process. The method further includes determining a data model based on the input dataset. The data model includes a plurality of latent space variables of a machine learning model. The method also includes receiving a plurality of reference models corresponding to a plurality of classes. Each of the plurality of reference models includes a corresponding plurality of latent space variables. The method includes comparing the data model with each of the plurality of reference models to generate a plurality of distance metric values. The method further includes selecting a reference model among the plurality of reference models based on the plurality of distance metric values. The method also includes controlling the physical process based on the selected reference model.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 17, 2022
    Inventors: Arathi Sreekumari, Radhika Madhavan, Suresh Emmanuel Joel, Hariharan Ravishankar
  • Patent number: 11488298
    Abstract: Methods and systems are provided for improving image quality of ultrasound images by automatically determining one or more image quality parameters via a plurality of separate image quality models. In one example, a method for an ultrasound system includes determining a plurality of image quality parameters of an ultrasound image acquired with the ultrasound system, each image quality parameter determined based on output from a separate image quality model, and outputting feedback to a user of the ultrasound system based on the plurality of image quality parameters.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 1, 2022
    Assignee: GE Precision Healthcare LLC
    Inventors: Pavan Kumar V. Annangi, Hariharan Ravishankar, Tore Bjaastad, Erik Normann Steen
  • Patent number: 11410086
    Abstract: A method for controlling a physical process includes receiving an input dataset corresponding to the physical process. The method further includes determining a data model based on the input dataset. The data model includes a plurality of latent space variables of a machine learning model. The method also includes receiving a plurality of reference models corresponding to a plurality of classes. Each of the plurality of reference models includes a corresponding plurality of latent space variables. The method includes comparing the data model with each of the plurality of reference models to generate a plurality of distance metric values. The method further includes selecting a reference model among the plurality of reference models based on the plurality of distance metric values. The method also includes controlling the physical process based on the selected reference model.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: August 9, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Arathi Sreekumari, Radhika Madhavan, Suresh Emmanuel Joel, Hariharan Ravishankar
  • Publication number: 20220237467
    Abstract: Systems and techniques that facilitate generation of model suitability coefficients based on generative adversarial networks and activation maps are provided. In various embodiments, a system can access a deep learning model that is trained on a training dataset. In various instances, the system can compute a model suitability coefficient that indicates whether the deep learning model is suitable for deployment on a target dataset, based on analyzing activation maps associated with the deep learning model. In various aspects, the system can train a generative adversarial network (GAN) to model a distribution of training activation maps of the deep learning model, based on samples from the training dataset. In various cases, the system can generate a set of target activation maps of the deep learning model, by feeding a set of samples from the target dataset to the deep learning model.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 28, 2022
    Inventors: Hariharan Ravishankar, Rahul Venkataramani, Prasad Sudhakara Murthy, Annangi P. Pavan Kumar
  • Patent number: 11308609
    Abstract: Methods and systems are provided for sequentially selecting scan parameter values for ultrasound imaging. In one example, a method includes selecting a first parameter value for the a first scan parameter based on an image quality of each ultrasound image of a first plurality of ultrasound images of an anatomical region, each ultrasound image of the first plurality of ultrasound images having a different parameter value for the first scan parameter, selecting a second parameter value for a second scan parameter based on an image quality of each ultrasound image of a second plurality of ultrasound images of the anatomical region, each ultrasound image of the second plurality of ultrasound images having a different parameter value for the second scan parameter, and applying the first parameter value for the first scan parameter and the second parameter value for the second scan parameter to one or more additional ultrasound images.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: April 19, 2022
    Assignee: GE Precision Healthcare LLC
    Inventors: Pavan Annangi, Hariharan Ravishankar, Tore Bjaastad, Erik Normann Steen, Svein Arne Aase, Rohan Patil
  • Patent number: 11232344
    Abstract: The present approach relates to feature ranking within deep neural networks in a multi-task and/or multi-label setting. Approaches are described to identify features that are task-specific as well as features that are shared across multiple tasks. In addition to facilitating interpretability, the selected subset of features can be used to make efficient models leading to better stability & regularization along with reduced compute and memory.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 25, 2022
    Assignee: General Electric Company
    Inventors: Hariharan Ravishankar, Bharath Ram Sundar, Prasad Sudhakar, Rahul Venkataramani, Vivek Vaidya
  • Publication number: 20210406681
    Abstract: Techniques are provided for learning loss functions using DL networks and integrating these loss functions into DL based image transformation architectures. In one embodiment, a method is provided that comprising facilitating training, by a system operatively coupled to a processor, a first deep learning network to predict a loss function metric value of a loss function. The method further comprises employing, by the system, the first deep learning network to predict the loss function metric value in association with training a second deep learning network that to perform a defined deep learning task. In various embodiments, the loss function comprises a computationally complex loss function that is not easily implementable in existing deep learning packages, such as a non-differentiable loss function, a feature similarity index match (FSIM) loss function, a system transfer function, a visual information fidelity (VIF) loss function and the like.
    Type: Application
    Filed: August 7, 2020
    Publication date: December 30, 2021
    Inventors: Dattesh Shanbhag, Hariharan Ravishankar, Utkarsh Agrawal