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    A SYSTEM AND METHOD TO DETECT HUMAN LOITERING ACTIVITY USING TRAJECTORY INFORMATION
    1.
    发明专利
    A SYSTEM AND METHOD TO DETECT HUMAN LOITERING ACTIVITY USING TRAJECTORY INFORMATION 未知

    公开(公告)号：MY161490A

    公开(公告)日：2017-04-14

    申请号：MYPI2010005703

    申请日：2010-12-01

    Applicant: MIMOS BERHAD

    Inventor： LIM MEI KUAN ,  LAI WENG KIN ,  CHAN CHEE SENG ,  ZULAIKHA KADIM

    IPC: G06K9/00 ,  H04N7/18

    Abstract: One embodiment of the present invention provides a system (800) for detecting loitering event in region of interest. Another embodiment of the present invention provides a method (900) for detecting loitering event in region of interest. The method comprising steps of determining presence of at least one object in region of interest (902), tagging each object of interest with identity (904), computing total time stamp for each object of interest (906), determining time span of each object of interest based on trajectory information and speed profile (908), detecting loitering event based on combination of plurality of determining features (910) and triggering alert when loitering event is detected (912).Total timestamp for each object of interest is computed by classifying each object as normal or suspicious by applying plurality of loitering thresholds by further establishing first threshold value TS to determine loitering event depending on time span of each object (1202); determining loitering event when total time span for object ti in region of interest is greater than first threshold value Ts (1204); establishing second threshold value TL to determine loitering event depending on time span status of each object (1206); and determining loitering event when a total time span for object ti in region of interest is greater than second threshold value TL and its trajectory status is abnormal (1208).

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