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    Method for and apparatus for detecting events
    1.
    发明授权
    Method for and apparatus for detecting events 有权

    公开(公告)号：US11055856B2

    公开(公告)日：2021-07-06

    申请号：US15851340

    申请日：2017-12-21

    Applicant: AXIS AB

    Inventor： Viktor Edpalm ,  Erik Andersson

    IPC: H04N5/14 ,  G06K9/00 ,  H04N21/234 ,  G06T7/215 ,  G06T7/246 ,  H04N21/2368

    Abstract: A method for detecting events comprises repeatedly registering a value indicating an amount of data generated by an encoder, which is encoding video from a scene by means of temporal compression, determining if a particular event has occurred in the scene represented by the encoded video by comparing characteristics of the registered values with predetermined characteristics, and generating an event signal in response to an event occurrence being determined.

    Method for identifying events in a motion video
    3.
    发明授权
    Method for identifying events in a motion video 有权

    公开(公告)号：US10824872B2

    公开(公告)日：2020-11-03

    申请号：US15851028

    申请日：2017-12-21

    Applicant: Axis AB

    Inventor： Viktor Edpalm ,  Erik Andersson ,  Song Yuan

    IPC: G06K9/00 ,  G06K9/62 ,  G06K9/46 ,  G06N3/04 ,  H04N7/18 ,  G06N3/08

    Abstract: A method for identifying events in a scene captured by a motion video camera comprises two identification processes, a temporary identification process and a long-term identification process. The temporary process includes: analyzing pixel data from captured image frames and identifying events; registering camera processing data relating to each image frame subjected to the identification of events; and adjusting weights belonging to an event identifying operation, wherein the weights are adjusted for achieving high correlation between the result from the event identifying operation and the result from the identification based on analysis of pixels from captured image frames of the captured scene. The long-term identification process includes: identifying events in the captured scene by inputting registered camera processing data to the event identifying operation. The temporary identification process is then executed during a predetermined time period and the long-term identification process is executed after the predetermined initial time has expired.

    METHOD FOR IDENTIFYING EVENTS IN A MOTION VIDEO
    4.
    发明申请
    METHOD FOR IDENTIFYING EVENTS IN A MOTION VIDEO 审中-公开

    公开(公告)号：US20180173956A1

    公开(公告)日：2018-06-21

    申请号：US15851028

    申请日：2017-12-21

    Applicant: Axis AB

    Inventor： Viktor Edpalm ,  Erik Andersson ,  Song Yuan

    IPC: G06K9/00 ,  G06K9/62

    CPC classification number: G06K9/00718 ,  G06K9/00771 ,  G06K9/4628 ,  G06K9/6256 ,  G06K9/6262 ,  G06K9/6271 ,  G06K9/6293 ,  G06K2009/00738 ,  G06N3/0445 ,  G06N3/084 ,  H04N7/183

    Abstract: A method for identifying events in a scene captured by a motion video camera comprises two identification processes, a temporary identification process and a long-term identification process. The temporary process includes: analyzing pixel data from captured image frames and identifying events; registering camera processing data relating to each image frame subjected to the identification of events; and adjusting weights belonging to an event identifying operation, wherein the weights are adjusted for achieving high correlation between the result from the event identifying operation and the result from the identification based on analysis of pixels from captured image frames of the captured scene. The long-term identification process includes: identifying events in the captured scene by inputting registered camera processing data to the event identifying operation. The temporary identification process is then executed during a predetermined time period and the long-term identification process is executed after the predetermined initial time has expired.

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