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1. WO2021218921 - SYSTEM AND METHOD FOR EXTRACTION OF A VIDEO THUMBNAIL FROM A VIDEO FILE

Publication Number WO/2021/218921
Publication Date 04.11.2021
International Application No. PCT/CN2021/089930
International Filing Date 26.04.2021
IPC
H04N 21/435 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
435Processing of additional data, e.g. decrypting of additional data or reconstructing software from modules extracted from the transport stream
H04N 21/845 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
845Structuring of content, e.g. decomposing content into time segments
CPC
H04N 21/23418
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
23418involving operations for analysing video streams, e.g. detecting features or characteristics
H04N 21/234363
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
2343involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
234363by altering the spatial resolution, e.g. for clients with a lower screen resolution
H04N 21/251
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
251Learning process for intelligent management, e.g. learning user preferences for recommending movies
Applicants
  • GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. [CN]/[CN]
Inventors
  • PURWAR, Abhinav
  • UPADHYAYA, Viral harendra
  • SRIVASTAVA, Prateek
Agents
  • SCIHEAD IP LAW FIRM
Priority Data
20204101799427.04.2020IN
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR EXTRACTION OF A VIDEO THUMBNAIL FROM A VIDEO FILE
(FR) SYSTÈME ET PROCÉDÉ D'EXTRACTION D'UNE IMAGE VIDÉO MINIATURE À PARTIR D'UN FICHIER VIDÉO
Abstract
(EN) The present disclosure provides methods and system for extraction of a video thumbnail from a video file, the video file being associated with one or more first parameters. The method dynamically identifies by an optimum optimizer, an optimum extractor based on the first parameters of the video file and historical data. The method further extracts, by the optimum extractor, one or more tracks, each track being associated with one or more second parameters. Thereafter the method dynamically identifies, by the optimum optimizer, an optimum decoder based on the one or more second parameters and the historical data. Further the method decodes the one or more tracks by the dynamically identified optimum decoder. The method then extracts by a thumbnail extractor unit, a video thumbnail based on the decoding.
(FR) La présente invention concerne des procédés et un système d'extraction d'une image vidéo miniature à partir d'un fichier vidéo, le fichier vidéo étant associé à un ou plusieurs premiers paramètres. Le procédé identifie dynamiquement, par le biais d'un optimiseur optimal, un extracteur optimal sur la base des premiers paramètres du fichier vidéo et de données historiques. Le procédé extrait en outre, par le biais de l'extracteur optimal, une ou plusieurs pistes, chaque piste étant associée à un ou plusieurs seconds paramètres. Ensuite, le procédé identifie dynamiquement, par le biais de l'optimiseur optimal, un décodeur optimal sur la base du ou des seconds paramètres et des données historiques. En outre, le procédé décode la ou les pistes par le biais du décodeur optimal dynamiquement identifié. Le procédé extrait ensuite, par le biais d'une unité d'extraction d'image miniature, une image vidéo miniature sur la base du décodage.
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