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    Seizure detection using contextual motion
    12.
    发明授权
    Seizure detection using contextual motion 有权

    公开(公告)号：US11751800B2

    公开(公告)日：2023-09-12

    申请号：US17077020

    申请日：2020-10-22

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Umar Asif ,  Stefan von Cavallar ,  Jianbin Tang ,  Stefan Harrer

    IPC: A61B5/00 ,  G16H50/70 ,  G06T7/00 ,  G06T7/20 ,  G06T7/70

    CPC classification number: A61B5/4094 ,  A61B5/7267 ,  G06T7/00 ,  G06T7/20 ,  G06T7/70 ,  G16H50/70

    Abstract: A method, a computer program product, and a computer system determine abnormal motion from a patient. The method includes receiving sensory data of the patient and a location in which the patient is present. The sensory data includes video data over a period of time the patient is being monitored. The method includes generating contextual information based on the sensory data. The contextual information is indicative of surroundings of the patient and characteristics of the location. The method includes generating motion information based on the sensory data. The motion information is indicative of movement of the patient in the location. The method includes generating contextual motion data by incorporating the contextual information with the motion information. The method includes determining the abnormal motion based on the contextual motion data.

    Generating three-dimensional spikes using low-power computing hardware
    13.
    发明授权
    Generating three-dimensional spikes using low-power computing hardware 有权

    公开(公告)号：US11500858B2

    公开(公告)日：2022-11-15

    申请号：US16842921

    申请日：2020-04-08

    Applicant: International Business Machines Corporation

    Inventor： Umar Asif ,  Subhrajit Roy ,  Jianbin Tang ,  Stefan Harrer

    IPC: G06F16/23 ,  G06N3/04 ,  A61B5/00 ,  G06K9/62 ,  G06N20/00 ,  A61B5/24

    Abstract: Aspects described herein include a method of generating three-dimensional (3D) spikes. The method comprises receiving a signal comprising time-series data and generating a first two-dimensional (2D) grid. Generating the first 2D grid comprises mapping segments of the time-series data to respective positions of the first 2D grid, and generating, for each position, a spike train corresponding to the respective mapped segment. The method further comprises generating a second 2D grid including performing, for each position, a mathematical operation on the spike train of the corresponding position of the first 2D grid. The method further comprises generating a third 2D grid including performing spatial filtering on the positions of the second 2D grid. The method further comprises generating a 3D grid based on a combination of the first 2D grid, the second 2D grid, and the third 2D grid. The 3D grid comprises one or more 3D spikes.

    Memory-efficient video tracking in real-time using direction vectors
    15.
    发明授权
    Memory-efficient video tracking in real-time using direction vectors 有权

    公开(公告)号：US10970855B1

    公开(公告)日：2021-04-06

    申请号：US16809681

    申请日：2020-03-05

    Applicant: International Business Machines Corporation

    Inventor： Umar Asif ,  Jianbin Tang ,  Subhrajit Roy

    IPC: G06T7/246 ,  G06T7/73

    Abstract: Provided are embodiments for a computer-implemented method. The method includes receiving a sequence of image data, transforming objects in each frame of the sequence of the image data into direction vectors, and clustering the direction vectors based at least in part on features of the objects. The method also includes mapping the direction vectors for the objects in each frame into a position-orientation data structure, and performing tracking using the mapped direction vectors in the position-orientation data structure. Also provided are embodiments of a computer program product and a system for performing object tracking.

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