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WO2007128185A1 - Système et procédé de censure de flux multimédia et appareil de noeud de génération de flux de code de censure - Google Patents

Système et procédé de censure de flux multimédia et appareil de noeud de génération de flux de code de censure Download PDF

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Publication number
WO2007128185A1
WO2007128185A1 PCT/CN2007/000115 CN2007000115W WO2007128185A1 WO 2007128185 A1 WO2007128185 A1 WO 2007128185A1 CN 2007000115 W CN2007000115 W CN 2007000115W WO 2007128185 A1 WO2007128185 A1 WO 2007128185A1
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WO
WIPO (PCT)
Prior art keywords
code stream
review
module
video
audio
Prior art date
Application number
PCT/CN2007/000115
Other languages
English (en)
Chinese (zh)
Inventor
Zhong Luo
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007128185A1 publication Critical patent/WO2007128185A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management 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
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25875—Management of end-user data involving end-user authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management 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
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25883—Management of end-user data being end-user demographical data, e.g. age, family status or address
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
    • H04N21/4751—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for defining user accounts, e.g. accounts for children
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key

Definitions

  • the so-called content filtering is to process and judge certain attributes of the content. These content attributes may include: the name of the content provider, the URL of the content (Universal Resource Locator, such as a web address), and the IP address of the content providing server. Etc., and the packet header information of the packet in the case where the media stream is encapsulated in a packet, the information in the packet, and the like. It can be seen that this processing and filtering is also carried out in a hierarchy from shallow to deep.
  • the prior art 1 has the following problems:
  • the deepest content filtering that is, the filtering of video and audio data itself, such as the recognition of images, identify harmful scenes. (Violence, pornography, etc.), harmful text information (subtitles), faces of specific people, etc.
  • DPF Deep Packet Filtering
  • the review code stream generating node disconnects and forwards the media stream when receiving the control signal.
  • the operator's access network may have multiple;
  • This review code stream requires that it contain all the information needed for content review of the original content stream, while at the same time - having the lowest possible bit rate, avoiding the extra overhead of the network due to censorship. It is acceptable if the overhead is only a fraction of a fraction of the original content stream or even lower.
  • the bit rate is as low as possible.
  • the recognition result of the automatic identification module shall be taken as the standard.
  • This technique can reduce the resolution of the image without completely decoding the original media stream, such as reducing the original CIF (Common Interchange Format) image to QCIF (Quarter CIF).
  • CIF Common Interchange Format
  • QCIF Quadrater CIF
  • the amount of data can be reduced.
  • r rh * rv, which is the product of the multiple of the resolution reduction in the horizontal direction and the vertical direction.
  • the amount of the review code stream generated by either method is only a few tenths or less of the original code stream, so that it occupies only a small amount of bandwidth and does not burden the existing system.
  • the I frame or the first frame and a certain number of adjacent frames may be directly intercepted to generate a video review code stream, for example, 2 frames or 3 frames adjacent to each other, generally No more than 5 frames;
  • the code stream generating node may intercept the corresponding adjacent frame data packet from the delayed original video stream and send it to the review center; or, in the review code stream generating node, create a cache module for each At time t, all video stream packets in the time window between time t and time t- ⁇ are buffered. This time window is actually a sliding window, as time t changes, no Discard outdated data and include new data.
  • the review code stream generating node 600 also includes a first portion related to video review, the first portion specifically comprising:
  • a second sub-module 60322 configured to copy a data packet that includes each I frame or the I frame and a certain number of frames before and after the video code stream, and then generate the video review code stream by using the copied I frame data packet;
  • a third sub-module 60323, configured to perform the process of reducing the spatial resolution of the video code stream to form the video review code stream; setting r is a multiple of the overall spatial resolution reduction, i rh*rv, ie equal to The horizontal and vertical resolutions are reduced by the product of the multiples, and the input video stream does not need to be completely decoded.
  • Each of the above sub-modules stores a corresponding processing program, and is respectively connected to the main control module 601.
  • the main control module 601 can call one of them to generate a video censorship stream, or call a sub-module pair in which the application can be combined.
  • the video review code stream is processed step by step to minimize the amount of data contained in the video censorship stream.
  • the data cache module is respectively connected to the data of the fixed time length ⁇ before the first sub-module 60321, the second sub-module 60322 or the fifth sub-module 60325, and the video review code stream of the Dangdang is generated by the video censorship stream.
  • the first sub-module 60321, the second sub-module Block 60322 or fifth sub-module 60325 retrieves the corresponding data packet from the data cache module.
  • the review code stream generating node 600 may further include a second part related to the audio review, the second part specifically including:
  • the audio replacement source library 6044 is connected to the second switch module 6043, and the second switch module 6043 turns on the audio replacement source library 6044 while disconnecting the audio stream; the audio replacement source
  • the library 6044 holds a plurality of innocuous pieces of audio content that can be used to replace harmful content, such as music, voice public service advertisements, and the like.
  • the replaced command is sent by the main control module 601.
  • the main control module 601 is controlled under the command of the content review center, and the content review center command is sent to the main control module 601 through the communication module 602;
  • the video bottom layer processing common module 607 is connected to each of the sub-modules included in the video protocol conversion module 6035 and the video review code stream generating module 6032 for storing the common processing program. Because in the process of video transcoding, different technologies may use some common technical modules. Such as squatting, entropy coding and entropy decoding, quantization and inverse quantization, DCT and inverse DCT. Also in trial These common modules are also needed during the code stream generation process. Therefore, in order to improve efficiency, these technologies are extracted to form a common module.
  • the review center can adopt a hierarchical setting method, and each level of review center generally includes the following main structures:
  • the video harmful content recognition sub-module may include: an automatic identification sub-unit for automatically identifying harmful content; and/or a manual identification unit for manually identifying harmful content, in which case it must be included An operating unit for receiving a recognition result;
  • the audio harmful content recognition includes an audio playback device and an operation unit for receiving the recognition result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention concerne un système et un procédé de censure de flux multimédia provenant d'une source multimédia de diffusion en continu et un appareil de noeud de génération de flux de code de censure pour ledit système de censure, notamment dans le traitement de communications multimédia associé à la technologie de communications multimédia. Le procédé et le système résolvent le problème concernant la réduction de l'usage des ressources du système lors de la censure en profondeur des services multimédia de diffusion en continu en cours. Le système de censure comporte: un noeud de génération de flux de code de censure, pour retarder le flux multimédia acheminé depuis la source multimédia de diffusion en continu, et de génération de flux de code de censure selon le flux multimédia; un centre de censure, pour connecter le noeud de génération de flux de code de censure via la communication, et censurer le flux de code de censure reçu depuis le noeud de génération de flux de code de censure, et transmettre le signal de commande pour arrêter l'acheminement du flux multimédia au noeud de génération de flux de code de censure lorsqu'il est déterminé qu'un contenu nocif est contenu dans le flux de code de censure. Le noeud de génération de flux de code de censure peut contenir un module de retardement de flux de code vidéo et audio et de module de génération de flux de code de censure vidéo et audio.
PCT/CN2007/000115 2006-04-30 2007-01-11 Système et procédé de censure de flux multimédia et appareil de noeud de génération de flux de code de censure WO2007128185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610079022.7 2006-04-30
CNA2006100790227A CN1968137A (zh) 2006-04-30 2006-04-30 一种媒体流审查系统及审查码流生成节点设备

Publications (1)

Publication Number Publication Date
WO2007128185A1 true WO2007128185A1 (fr) 2007-11-15

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CN (1) CN1968137A (fr)
WO (1) WO2007128185A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2219337A4 (fr) * 2008-01-23 2011-01-26 Huawei Tech Co Ltd Procédé et système de catégorisation de contenu
CN113784153A (zh) * 2016-12-06 2021-12-10 谷歌有限责任公司 检测相似直播流媒体项的方法、系统和计算机可读介质
CN114071195A (zh) * 2020-08-05 2022-02-18 达音网络科技（上海）有限公司 可扩展多级协作内容审核技术

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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CN102164083B (zh) * 2011-04-18 2016-02-10 中兴通讯股份有限公司 令牌桶的刷新方法及装置
CN103945272B (zh) * 2013-01-23 2018-03-06 腾讯科技（北京）有限公司 一种视频交互方法、装置和系统
CN105933289A (zh) * 2016-04-08 2016-09-07 苏州花坞信息科技有限公司 一种在线广播平台
CN108124191B (zh) * 2017-12-22 2019-07-12 北京百度网讯科技有限公司 一种视频审核方法、装置及服务器
CN111327912B (zh) * 2018-12-13 2022-06-28 中国电信股份有限公司 直播处理方法、装置、系统和计算机可读存储介质
CN110007894B (zh) * 2019-03-29 2021-01-15 百度在线网络技术（北京）有限公司 用于发送音频信息的方法及装置

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WO2000045291A1 (fr) * 1999-01-28 2000-08-03 Koninklijke Philips Electronics N.V. Systeme et procede permettant d'analyser un contenu video au moyen d'un texte detecte dans des trames video
CN1636388A (zh) * 2001-03-30 2005-07-06 皇家菲利浦电子有限公司 视频节目中基于多媒体内容信息的父母控制系统

Patent Citations (3)

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US5195135A (en) * 1991-08-12 1993-03-16 Palmer Douglas A Automatic multivariate censorship of audio-video programming by user-selectable obscuration
WO2000045291A1 (fr) * 1999-01-28 2000-08-03 Koninklijke Philips Electronics N.V. Systeme et procede permettant d'analyser un contenu video au moyen d'un texte detecte dans des trames video
CN1636388A (zh) * 2001-03-30 2005-07-06 皇家菲利浦电子有限公司 视频节目中基于多媒体内容信息的父母控制系统

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2219337A4 (fr) * 2008-01-23 2011-01-26 Huawei Tech Co Ltd Procédé et système de catégorisation de contenu
US8533314B2 (en) 2008-01-23 2013-09-10 Huawei Technologies Co., Ltd. Method and system for content categorization
US8719332B2 (en) 2008-01-23 2014-05-06 Huawei Technologies Co., Ltd. Method and system for content categorization
US9195737B2 (en) 2008-01-23 2015-11-24 Huawei Technologies Co., Ltd. Method and system for content categorization
CN113784153A (zh) * 2016-12-06 2021-12-10 谷歌有限责任公司 检测相似直播流媒体项的方法、系统和计算机可读介质
CN113784153B (zh) * 2016-12-06 2024-06-25 谷歌有限责任公司 检测相似直播流媒体项的方法、系统和计算机可读介质
CN114071195A (zh) * 2020-08-05 2022-02-18 达音网络科技（上海）有限公司 可扩展多级协作内容审核技术
CN114071194A (zh) * 2020-08-05 2022-02-18 达音网络科技（上海）有限公司 可扩展多级协作内容审核技术
CN114071194B (zh) * 2020-08-05 2024-04-23 达音网络科技（上海）有限公司 可扩展多级协作内容审核技术
CN114071195B (zh) * 2020-08-05 2024-06-21 达音网络科技（上海）有限公司 可扩展多级协作内容审核技术

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