公开(公告)号：US11748986B2

公开(公告)日：2023-09-05

申请号：US17208684

申请日：2021-03-22

Applicant: Beijing Baidu Netcom Science And Technology Co Ltd

Inventor： Ruifeng Li ,  Lei Yuan ,  Xing Dai ,  Qinglin Qin ,  Zhuo Sun ,  Zhiqiang Liu

IPC: G06V20/40 ,  G06F18/214 ,  G06V20/62

CPC classification number: G06V20/46 ,  G06F18/214 ,  G06V20/635

Abstract: A method and an apparatus for recognizing a key identifier in a video, a device and a storage medium are disclosed. The method includes: extracting a plurality of key frames from the video; generating a mask of the key identifier by using a difference between the plurality of key frames; determining, in video frames of the video, a key identifier area image by using the mask; and recognizing the key identifier area image to obtain a key identifier category included in the video.

公开(公告)号：US20210209375A1

公开(公告)日：2021-07-08

申请号：US17208684

申请日：2021-03-22

Applicant: Beijing Baidu Netcom Science And Technology Co Ltd

Inventor： Ruifeng Li ,  Lei Yuan ,  Xing Dai ,  Qinglin Qin ,  Zhuo Sun ,  Zhiqiang Liu

IPC: G06K9/00 ,  G06K9/32 ,  G06K9/62

Abstract: A method and an apparatus for recognizing a key identifier in a video, a device and a storage medium are disclosed. The method includes: extracting a plurality of key frames from the video; generating a mask of the key identifier by using a difference between the plurality of key frames; determining, in video frames of the video, a key identifier area image by using the mask; and recognizing the key identifier area image to obtain a key identifier category included in the video.