公开(公告)号：US11887619B2

公开(公告)日：2024-01-30

申请号：US17962722

申请日：2022-10-10

Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

Inventor： Yurong Yang ,  Xuyuan Xu ,  Guoping Gong ,  Yang Fang

IPC: G10L25/18 ,  G10L21/0308

CPC classification number: G10L25/18 ,  G10L21/0308

Abstract: A multimedia information processing method includes: parsing multimedia information to separate an audio from the multimedia information; converting the audio to obtain a mel spectrogram corresponding to the audio; determining, according to the mel spectrogram corresponding to the audio, an audio feature vector corresponding to the audio; and determining, based on an audio feature vector corresponding to a source audio in source multimedia information and an audio feature vector corresponding to a target audio in target multimedia information, a similarity between the target multimedia information and the source multimedia information.

公开(公告)号：US12167105B2

公开(公告)日：2024-12-10

申请号：US17963844

申请日：2022-10-11

Applicant: Tencent Technology (Shenzhen) Company Limited

Inventor： Yang Fang ,  Tao Wu ,  Xuyuan Xu

IPC: H04N21/8358

Abstract: A watermark detection method includes identifying, among plural stored videos, a second video having a second video feature matching a first video feature of a first video, the second video comprising watermark information. The method further includes comparing the first video and the second video to obtain a video conversion parameter, the video conversion parameter indicating a difference between the first video and the second video. The method also includes converting the first video based on the video conversion parameter to obtain a third video, and performing watermark detection on the third video to obtain watermark information in the third video. Apparatus and non-transitory computer-readable storage medium counterpart embodiments are also contemplated.