公开(公告)号：US11132555B2

公开(公告)日：2021-09-28

申请号：US16190035

申请日：2018-11-13

Applicant: Tencent Technology (Shenzhen) Company Limited

Inventor： Xuyuan Xu

IPC: G06K9/00 ,  G06F16/00 ,  G06F16/783 ,  G06F16/735 ,  G06K9/46 ,  G06K9/62 ,  G10L25/51 ,  G10L25/54

Abstract: Embodiments of this application disclose a video detection method and a server. The method includes: obtaining first video data to be detected; decoding the first video data, to obtain audio data of the first video data; analyzing and identifying the audio data, to obtain audio fingerprint data corresponding to the audio data; querying an audio fingerprint library; obtaining a video label and a time parameter corresponding to the audio data when the audio fingerprint library comprises the audio fingerprint data; querying a video copyright library, to obtain a first picture that is corresponding to the video label and that satisfies the time parameter, and extracting a second picture that is in the first video data and that satisfies the time parameter; separately extracting a first feature parameter of the first picture and a second feature parameter of the second picture; and comparing the first feature parameter with the second feature parameter, and determining, based on a comparison result, whether the first video data is consistent with a video in the video copyright library.

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.

公开(公告)号：US11914639B2

公开(公告)日：2024-02-27

申请号：US16930069

申请日：2020-07-15

Applicant: Tencent Technology (Shenzhen) Company Limited

Inventor： Xuyuan Xu ,  Guoping Gong ,  Tao Wu

IPC: G06V20/40 ,  G06F16/43 ,  G06F16/45 ,  G06F16/583 ,  G06F18/214 ,  G06V10/46

CPC classification number: G06F16/583 ,  G06F16/43 ,  G06F16/45 ,  G06F18/214 ,  G06V20/46 ,  G06V20/48 ,  G06V10/462

Abstract: This application discloses a multimedia resource matching method performed at a computing device. The method includes: searching a first media resource set among a multimedia resource set, first target image frames of all media resources in the first media resource set meeting a target condition, and features of the first target image frames matching features in image frames of a to-be-matched multimedia resource according to a first matching condition; determining, among the first target image frames, second target image frames whose features match the features in the image frames of the to-be-matched multimedia resource according to a second matching condition; and obtaining matching information of the second target image frames and an identifier of a target media resource among the multimedia resource set, the matching information being used for indicating a total duration and a playback moment of the second target frame image in the target media resource.

公开(公告)号：US11538246B2

公开(公告)日：2022-12-27

申请号：US17007507

申请日：2020-08-31

Applicant: Tencent Technology (Shenzhen) Company Limited

Inventor： Guoping Gong ,  Xuyuan Xu ,  Tao Wu

IPC: G06V20/40 ,  G06F16/783 ,  G06K9/62 ,  G06V10/25

Abstract: Aspects of the disclosure provide a method and an apparatus for training a feature extraction model, a computer device, and a computer-readable storage medium that belong to the field of video processing technologies. The method can include detecting a plurality of images in one or more sample videos and obtaining at least two images including the same object. The method can further include determining the at least two images including the same object as sample images, and training according to the determined sample images to obtain the feature extraction model, where the feature extraction model is used for extracting a video feature of the video.