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    Difference-guided video analysis
    2.
    发明授权
    Difference-guided video analysis 有权

    公开(公告)号：US11593961B2

    公开(公告)日：2023-02-28

    申请号：US17120331

    申请日：2020-12-14

    申请人： International Business Machines Corporation

    发明人： Lingyun Wang ,  Qing Wang ,  Shi Lei Zhang

    IPC分类号： G06T7/00 ,  G06T7/73 ,  G06N3/04 ,  G06T3/40

    摘要： A method can include obtaining, from a video having a first resolution, a set of frames having a second resolution. The first resolution can be higher than the second resolution. The set of frames can include a first frame and a second frame. The method can include generating a difference feature map. The method can include obtaining a third frame having the first resolution. The method can include detecting, based on the difference feature map, a first location of a first object in the third frame. The method can include cropping, from the third frame, a first cropped area. The first cropped area can be smaller than a third frame area. The method can include generating, based on a feature map and the difference feature map, a spatial attention layer. The method can include detecting, by the spatial attention layer, the first object in the first cropped area.

    Image recognition
    5.
    发明授权
    Image recognition 有权

    公开(公告)号：US11238618B2

    公开(公告)日：2022-02-01

    申请号：US16695463

    申请日：2019-11-26

    申请人： International Business Machines Corporation

    发明人： Jie Zhang ,  Qing Wang ,  Shi Lei Zhang ,  Shiwan Zhao

    IPC分类号： G06T7/00 ,  G06K9/46 ,  G06T7/11 ,  G06T7/194 ,  G06T7/90 ,  G06K9/38

    摘要： Aspects of the present invention disclose a method, computer program product, and system for image processing. The method includes one or more processors generating a first set of binary images from a first image based on a first color attribute value range associated with a textual object presented in the first image. The method further includes one or more processors recognizing a first set of candidates for the textual object from the first set of binary images. The method further includes one or more processors determining a first appearance frequency of a first candidate in the first set of candidates. In response to determining that the first appearance frequency exceeds a first frequency, threshold he method further includes one or more processors determining that the first candidate is a first recognition result for the textual object in the first image.

    Model matching and learning rate selection for fine tuning
    7.
    发明授权
    Model matching and learning rate selection for fine tuning 有权

    公开(公告)号：US11164078B2

    公开(公告)日：2021-11-02

    申请号：US15806595

    申请日：2017-11-08

    申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

    发明人： Ke Jin ,  Yubo Li ,  Yonghua Lin ,  Junsong Wang ,  Qing Wang

    IPC分类号： G06N3/08 ,  G06N3/04

    摘要： A method, computer system, and computer program product for model selection for training a new dataset is provided. The present invention may include choosing a model from a set of models to be evaluated for training the new dataset, selecting a sample input from a subset of the new dataset, calculating a model activation score for each of the sample inputs in the chosen model, calculating an accumulated model activation score for the chosen model, depending on the model activation score of each of the sample inputs in the chosen model, calculating an accumulated model activation score for each model from the set of models to be evaluated for training the new dataset, and selecting the model for training the new dataset with the highest accumulated model activation score.

    Beacon array
    8.
    发明授权
    Beacon array 有权

    公开(公告)号：US10386446B2

    公开(公告)日：2019-08-20

    申请号：US15661651

    申请日：2017-07-27

    申请人： International Business Machines Corporation

    发明人： YuBo Li ,  Yonghua Lin ,  Qing Wang ,  Wei Dong Wang ,  Chao Xue

    IPC分类号： G01S1/00 ,  G01S1/02 ,  G01S11/06

    摘要： A method comprises receiving a first received signal strength indicator (RSSI) of a first beacon in an array of beacons and receiving a second RSSI of a second beacon in an array of beacons, calculating a RSSI of the array (r) as a function of the first RSSI and the second RSSI, retrieving a calibrated RSSI value of the array (r′) from a memory, determining whether r>r′, and outputting a signal to a user device responsive to determining that r>r′.

    Device positioning
    9.
    发明授权
    Device positioning 有权

    公开(公告)号：US10156629B2

    公开(公告)日：2018-12-18

    申请号：US14919776

    申请日：2015-10-22

    申请人： International Business Machines Corporation

    发明人： Yu Bo Li ,  Yong Hua Lin ,  Qing Wang ,  Chao Xue

    IPC分类号： G01S3/02 ,  G01S5/02 ,  H04B17/309 ,  H04B17/27 ,  H04B17/318

    摘要： A computer-implemented method and a server for device positioning. The computer-implemented method includes sending a control message to a detector. The control message indicates a set of channels associated with an area and time periods for monitoring the set of channels. A measurement of a signal from a device for the area and a target device is received from the detector. Position of the target device with respect to the area is determined based on a measurement and a radio map. The radio map indicates signal strength corresponding to positions in the area.