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公开(公告)号:US20250095826A1
公开(公告)日:2025-03-20
申请号:US18470734
申请日:2023-09-20
Applicant: GE Precision Healthcare LLC
Inventor: Vikram Reddy Melapudi , Hariharan Ravishankar , Deepa Anand
Abstract: Systems or techniques that facilitate ensembled querying of example images via deep learning embeddings are provided. In various embodiments, a system can access a medical image associated with a medical patient. In various aspects, the system can generate an ensembled heat map indicating where in the medical image an anatomical structure is likely to be located, by executing an embedder neural network on the medical image and on a plurality of example medical images associated with other medical patients. In various instances, respective instantiations of the anatomical structure can be flagged in the plurality of example medical images by user-provided clicks.
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公开(公告)号:US20240281649A1
公开(公告)日:2024-08-22
申请号:US18170888
申请日:2023-02-17
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Prasad Sudhakara Murthy , Rohan Patil
Abstract: Systems/techniques that facilitate improved distillation of deep ensembles are provided. In various embodiments, a system can access a deep learning ensemble configured to perform an inferencing task. In various aspects, the system can iteratively distill the deep learning ensemble into a smaller deep learning ensemble configured to perform the inferencing task, wherein a current distillation iteration can involve training a new neural network of the smaller deep learning ensemble via a loss function that is based on one or more neural networks of the smaller deep learning ensemble which were trained during one or more previous distillation iterations.
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公开(公告)号:US11580384B2
公开(公告)日:2023-02-14
申请号:US16522367
申请日:2019-07-25
Applicant: GE Precision Healthcare LLC
Inventor: Rahul Venkataramani , Sai Hareesh Anamandra , Hariharan Ravishankar , Prasad Sudhakar
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.
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公开(公告)号:US20210158935A1
公开(公告)日:2021-05-27
申请号:US16691430
申请日:2019-11-21
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Dattesh Dayanand Shanbhag
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
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公开(公告)号:US11972593B2
公开(公告)日:2024-04-30
申请号:US17453319
申请日:2021-11-02
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Pavan Annangi
CPC classification number: G06T7/77 , A61B5/1079 , A61B5/7267 , A61B5/742 , A61B5/7475 , G06T7/11 , G06T7/73 , G06T11/00 , G06T2200/24 , G06T2207/20081 , G06T2207/20084 , G06T2207/20104 , G06T2207/30004 , G06V2201/034
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.
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6.
公开(公告)号:US20230290487A1
公开(公告)日:2023-09-14
申请号:US18319686
申请日:2023-05-18
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Dattesh Dayanand Shanbhag
CPC classification number: G16H30/40 , G16H30/20 , A61B5/055 , A61B6/032 , G06T7/0014 , G06T11/008 , G06N3/045 , G06T2207/10081 , G06T2207/10084 , G06T2207/10088
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
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公开(公告)号:US20230181082A1
公开(公告)日:2023-06-15
申请号:US18167693
申请日:2023-02-10
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Rahul Venkataramani
CPC classification number: A61B5/335 , A61B5/7246 , A61B5/7267
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.
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8.
公开(公告)号:US11589828B2
公开(公告)日:2023-02-28
申请号:US16733797
申请日:2020-01-03
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Rahul Venkataramani
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.
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公开(公告)号:US20250149169A1
公开(公告)日:2025-05-08
申请号:US18504649
申请日:2023-11-08
Applicant: GE Precision Healthcare LLC
Inventor: Deepa Anand , Dattesh Shanbhag , Hariharan Ravishankar , Suresh Emmanuel Devadoss Joel , Rakesh Mullick , Rachana Sathish , Rahul Venkataramani , Krishna Seetharam Shriram , Prasad Sudhakara Murthy
Abstract: Systems or techniques for facilitating learnable visual prompt engineering are provided. In various embodiments, a system can access a medical image and a pre-trained machine learning model that is configured to perform a diagnostic or prognostic inferencing task. In various aspects, the system can apply a pre-processing transformation to one or more pixels or voxels of the medical image, thereby yielding a transformed version of the medical image, wherein the pre-processing transformation can convert an input pixel or voxel intensity value to an output pixel or voxel intensity value via one or more parameters that are iteratively learned. In various instances, the system can perform the diagnostic or prognostic inferencing task, by executing the pre-trained machine learning model on the transformed version of the medical image.
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10.
公开(公告)号:US12229685B2
公开(公告)日:2025-02-18
申请号:US17155997
申请日:2021-01-22
Applicant: GE Precision Healthcare LLC
Inventor: Hariharan Ravishankar , Rahul Venkataramani , Prasad Sudhakara Murthy , Annangi P. Pavan Kumar
Abstract: Systems/techniques that facilitate generation of model suitability coefficients are provided. In various embodiments, a system can access a model trained on a training dataset, and the system can compute a coefficient indicating whether the model is suitable for deployment on a target dataset, based on analyzing activation maps associated with the model. In some cases, the system can: train a generative adversarial network (GAN) to learn a distribution of training activation maps produced by the model; generate a set of target activation maps of the model, by feeding samples from the target dataset to the model; cause a generator of the GAN to generate synthetic training activation maps from the learned distribution of training activation maps; iteratively perturb inputs of the generator until distances between the synthetic training activation maps and the target activation maps are minimized; and aggregate the minimized distances to form the coefficient.
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