公开(公告)号：US20230008085A1

公开(公告)日：2023-01-12

申请号：US17951898

申请日：2022-09-23

申请人： TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

发明人： Huaguan MA ,  Zhaohong CHEN ,  Jie ZHAO ,  Xiaodong CUI ,  Lifu WANG ,  Wei HUANG ,  Yicong LIU ,  Xin LI ,  Xiaoxia PAN

IPC分类号： G06T1/00 ,  G06V20/40 ,  G06V10/42 ,  G06T7/90 ,  G06T9/00

摘要： Disclosed in this application are a method for embedding a watermark in video data and apparatus, a method for extracting a watermark in video data and apparatus, a device, and a storage medium. The method for embedding the watermark includes: acquiring a target image frame in video data; performing time-frequency transformation on the target image frame to obtain target frequency domain data, the target frequency domain data comprising a matrix formed by frequency domain coefficients; changing the frequency domain coefficients in the target frequency domain data according to watermark data to obtain watermarked frequency domain data; performing inverse time-frequency transformation on the watermarked frequency domain data to obtain a watermarked image frame; and synthesizing watermarked video data according to the watermarked image frame.