利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

880 条记录 (耗时 0.024 秒)

    TARGET TRACKING METHOD, APPARATUS, MEDIUM, AND DEVICE
    103.
    发明公开
    TARGET TRACKING METHOD, APPARATUS, MEDIUM, AND DEVICE 审中-公开

    公开(公告)号：EP3770854A1

    公开(公告)日：2021-01-27

    申请号：EP19861095.8

    申请日：2019-06-28

    申请人： TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

    发明人： ZHANG, Hao ,  NIU, Zhiwei

    IPC分类号： G06T7/246 ,  G06T7/579 ,  G06T7/73 ,  G06K9/00 ,  G06K9/62

    摘要： Embodiments of this application disclose a target tracking method and apparatus, a device, and a medium. The method includes: obtaining, by a server, a first video stream, and performing the following data processing for each video frame in the first video stream: performing, by the server, detection according to a target detection model and a current video frame, to obtain candidate regions in the current video frame; performing, by the server, extraction according to a feature extraction model and the candidate regions, to obtain a deep feature corresponding to each candidate region; calculating, by the server, a feature similarity corresponding to the each candidate region according to the deep feature corresponding to the each candidate region and a deep feature of a target detected in a previous video frame; and finally determining, by the server based on the feature similarity corresponding to the each candidate region, the target detected in the current video frame. Target detection is performed in a range of the current video frame by using the target detection model, and target tracking is performed based on the deep feature, so that occurrence of cases such as a tracking drift or losing a tracking target can be effectively prevented, to ensure the accuracy of target tracking.

    ELECTRONIC DEVICE AND METHOD FOR VEHICLE DRIVING ASSISTANCE
    105.
    发明公开
    ELECTRONIC DEVICE AND METHOD FOR VEHICLE DRIVING ASSISTANCE 审中-公开

    公开(公告)号：EP3736191A1

    公开(公告)日：2020-11-11

    申请号：EP19764996.5

    申请日：2019-03-06

    申请人： Samsung Electronics Co., Ltd.

    发明人： JU, Jaeyong ,  KIM, Myungsik ,  HAN, Seunghoon ,  LIM, Taegyu ,  MOON, Boseok

    IPC分类号： B60W40/02 ,  B60W30/14 ,  G06N3/08 ,  H04N5/225 ,  G06T7/246

    摘要： An electronic device for and a method of assisting vehicle driving are provided. The electronic device includes a plurality of cameras configured to capture a surrounding image around a vehicle; at least one sensor configured to sense an object around the vehicle; and a processor configured to obtain, during vehicle driving, a plurality of image frames as the surrounding image of the vehicle is captured based on a preset time interval by using the plurality of cameras, based on the object is sensed using the at least one sensor while the vehicle is being driven, extract an image frame corresponding to a time point when and a location where the object has been sensed, from among the obtained plurality of image frames, perform object detection from the extracted image frame, and perform object tracking of tracking a change in the object, from a plurality of image frames obtained after the extracted image frame.
    The present disclosure also relates to an artificial intelligence (Al) system that utilizes a machine learning algorithm, such as deep learning, and applications of the AI system.

    TARGET DETECTION METHOD AND APPARATUS
    106.
    发明公开
    TARGET DETECTION METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3731180A1

    公开(公告)日：2020-10-28

    申请号：EP18893123.2

    申请日：2018-11-15

    申请人： Hangzhou Ezviz Software Co., Ltd.

    发明人： JIANG, Nicong ,  ZHU, Jianhua ,  SHEN, Bingwei ,  GUO, Bin ,  JIANG, Haiqing

    IPC分类号： G06T7/246

    摘要： The embodiments of the present application provides a target detection method, which comprises: obtaining a plurality of images acquired by an image acquiring device as images to be detected when a region to be detected is illuminated by light sources with different illuminating angles, wherein the different illuminating angles correspond to the different images to be detected(S101); and determining whether a target exists in the region to be detected based on gray scale differences between the obtained images to be detected with illuminating by the light sources of with different illuminating angles(S 102). The method is applied to achieve a simple and effective detection of the target existing in the region to be detected.