WO2009071695A1 - Procédé et système de transmission sans fil de données d'image, programme informatique et support de stockage lisible par ordinateur correspondants - Google Patents

Procédé et système de transmission sans fil de données d'image, programme informatique et support de stockage lisible par ordinateur correspondants Download PDF

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Publication number
WO2009071695A1
WO2009071695A1 PCT/EP2008/066998 EP2008066998W WO2009071695A1 WO 2009071695 A1 WO2009071695 A1 WO 2009071695A1 EP 2008066998 W EP2008066998 W EP 2008066998W WO 2009071695 A1 WO2009071695 A1 WO 2009071695A1
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WO
WIPO (PCT)
Prior art keywords
data
processing device
video
data processing
mobile terminal
Prior art date
Application number
PCT/EP2008/066998
Other languages
German (de)
English (en)
Inventor
Veit Quack
Joachim Knaf
Original Assignee
Hochschule Für Film Und Fernsehen 'konrad Wolf'
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 Hochschule Für Film Und Fernsehen 'konrad Wolf' filed Critical Hochschule Für Film Und Fernsehen 'konrad Wolf'
Publication of WO2009071695A1 publication Critical patent/WO2009071695A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Definitions

  • the invention relates to a method and an arrangement for the transmission of image data as well as to a corresponding computer program and a corresponding computer-readable storage medium, which can be used in particular in television production for timely embedding of mobile picture material in television programs.
  • German Patent DE 103 20 889 B3 proposed a method for generating and transmitting a television signal via ip-based media.
  • the procedure is to use TV picture and sound information in IP environments. So it serves the program distribution over the Internet.
  • the method described there is not suitable to provide live a broadcast-capable signal for broadcasting via radio.
  • German patent application DE 10 2006 052 320 A1 describes a system for an Internet portal in which digital video sequences are set in the portal.
  • the disadvantage of this solution is that the contributions can not be shown live, but only after a time offset.
  • the publication GB 2 358 325 A describes a mobile
  • US Patent Application US 2007/0127508 A1 describes a gateway which controls and monitors video recording devices and the transmission of video data in networks.
  • the object of the invention is thus to provide a method and an arrangement for the transmission of image data and a corresponding computer program and a corresponding computer-readable storage medium which eliminate the disadvantages of the known solutions and in particular make it possible to transmit video data which are transmitted by mobile terminals Editing television studios editorially and integrate them into a television program essentially in real time.
  • a particular advantage of the inventive method for Transmission of image data is that the video data transmitted from a mobile terminal can be easily further processed in a conventional television studio with substantially no loss of time.
  • data comprising video data from at least one mobile terminal, which is advantageously equipped with a camera (ie video data alone or together with additional data - hereinafter the term 'video data' implies that this video data alone or together with others Data is transferred) to a camera (ie video data alone or together with additional data - hereinafter the term 'video data' implies that this video data alone or together with others Data is transferred) to a camera (ie video data alone or together with additional data - hereinafter the term 'video data' implies that this video data alone or together with others Data is transferred) to a camera (ie video data alone or together with additional data - hereinafter the term 'video data' implies that this video data alone or together with others Data is transferred) to a camera (ie video data alone or together with additional data - hereinafter the term 'video data' implies that this
  • Data processing device are transmitted, where at least the video data is converted into a broadcastable signal.
  • the at least one mobile terminal device is preferably a mobile phone camera, a personal digital assistant (PDA) or the like.
  • the transmission of the video data is preferably at least partially via a wireless communication link, such as 3g or 4g networks.
  • the data processing device receives the video data transmitted by the at least one mobile terminal, converts these into signals which can be fed into a television program and can be transmitted there, and then forwards them to a television server.
  • the signals resulting from the conversion, broadcastable signals can also be stored as a video codec in a data memory.
  • SD standard definition
  • ITU-R BT.601 digital studio standard for SDTV, referred to as DSK 270, SDI or 601.
  • the Technical Guidelines apply to television production on video tape and tapeless systems.
  • the time reference for the input function of video recording machines and tapeless production devices is usually derived from the selected video input signal. Therefore, video signals to be recorded must also have a high temporal stability in addition to standardized level values.
  • the requirements for a temporal reference for all equipment involved in a television production are in the EBU Technical Standard N14 described.
  • the television signals When recording via the digital component input SDI (Serial Digital Interface), the television signals must comply with the coding parameters according to Recommendation ITU-R BT.601 for the 625-line systems (note the two possible display modes for the level range, as in Figures 3a to 3d listed).
  • the serial digital component signals must comply with the specifications of the interface according to Recommendation ITU-R BT.656.
  • the broadcast-capable signals are standard definition broadcasting signals (SD broadcasting signals).
  • SD broadcasting signals standard definition broadcasting signals
  • the unit for converting the video data into an SD broadcasting signal comprises at least one frame synchronizer, at least one A / D converter and at least one audio embedder (so-called black magic multiconverter).
  • the video data may be sent from the at least one transmitting mobile terminal as a video stream, video call or even as a file (e.g., mp4 file) to the computing device.
  • a further preferred embodiment of the method according to the invention therefore provides that the video data is converted into an analog signal, preferably into an analog video / audio signal such as a PAL signal, before being converted into the SD broadcasting signal.
  • a preferred embodiment of the invention provides that the video data sent by the at least one transmitting mobile terminal is received by a receiving station, which performs the conversion into the analog video / audio signal.
  • the analog signals may then be transmitted, for example, via a PAL output, such as e.g. a video output of a mobile phone camera used as a receiving station, be transmitted to a CVBS connection.
  • data is transmitted to the data processing device, which includes information from which video data can be extracted.
  • the extraction of the video data is performed by the data processing device. Subsequently, as described, the conversion into an analog signal and the forwarding to the TV server.
  • analog Signal synchronized and / or stabilized before the conversion into the SD broadcasting signal, for example by a mixer or frame synchronizer.
  • a further preferred embodiment of the invention provides that the video data transmitted by the at least one mobile terminal is received by a similar second mobile terminal, which is included in the data processing device.
  • the at least one transmitting mobile terminal is also referred to as the first mobile terminal.
  • each receiving station which enters into a communication connection with the at least one first mobile terminal can.
  • Communication link can for example be established by the at least one first mobile terminal, but it is alternatively also possible that the communication link is established by the data processing device or by the receiving station.
  • a communication connection can be set up by calling a mobile phone camera, which is used as a receiving station, one or more of the first mobile terminals.
  • incoming calls are automatically accepted by the receiving station and forwarded for further processing.
  • the forwarding and / or further processing of the incoming video with the call video data is carried out according to information which the incoming call and / or video stream through the
  • This information is, for example, the telephone number of the sending first mobile transmitted with the call and / or video stream Terminal, the call time, the location of the sending mobile terminal, metadata of the sending first mobile terminal (eg a sending mobile phone camera) o. The like. This list is not meant to be exhaustive. This information is evaluated by the receiving station and used for example for the forwarding and / or further processing of the incoming video data.
  • An arrangement according to the invention for transmitting image data comprises at least a first mobile terminal equipped with a camera
  • the arrangement is set up such that video data is transmitted from the at least one mobile terminal to the data processing device via at least one wireless communication link.
  • the video data is converted into a broadcastable signal and forwarded to a television server.
  • the video data converted into the broadcast-capable signal can be stored as a video codec in a data memory.
  • the first mobile terminal is preferably a mobile phone camera, a personal digital assistant (PDA) or the like. like.
  • PDA personal digital assistant
  • the data processing device comprises at least one receiving station for receiving the video data, wherein the receiving station may be embodied, for example, as a second mobile terminal, which corresponds to the first terminal.
  • the data processing device also has at least one Means for synchronizing and / or stabilizing an analog video / audio signal.
  • a computer program for transmitting image data enables a data processing device after it has been inserted into the
  • Memory of the data processing device has been loaded to perform a method for transmitting image data, wherein from at least one mobile terminal (1) video data comprising at least partially via at least one wireless communication link to a
  • Data processing device are transmitted, at least the video data converted by the data processing device into a broadcastable signal and forwarded to a television server (4) or stored as a video codec in a data memory (8).
  • the computer program according to the invention is modular, with individual modules being installed on different components of the arrangement according to the invention.
  • Such computer programs can be made available for download (for a fee or free of charge, freely accessible or password-protected) in a data or communication network, for example.
  • Computer programs can then be made usable by a method in which a computer program according to claim 23 is downloaded from an electronic data network, such as from the Internet, to a data processing device connected to the data network.
  • the invention solves two questions. Firstly, how can cellphone sequences be processed technically to meet broadcasting standards, and secondly, how must the workflow be designed to allow editors to filter out of the mass of submissions, those with the highest quality, within a given time frame can? For this purpose, an editorial office and a studio will be set up to process the supplied mobile phone material for a large number of users and make it available to a broad public.
  • the invention describes how in detail the transmission and conversion of an image and signal via radio network and how it is addressed and assigned and how it can be found in the right place on the server. For this purpose, in particular the problem was solved, as a stable transmission signal in a broadcasting environment (standard definition transmission signal) is generated from a live streamed mobile phone contribution.
  • the real-time conversion was realized in a clocked, synchronized with the studio operation stable signal in quasi-real time.
  • the invention provides contributions to television over mobile.
  • the invention makes it possible to record broadcast-capable television picture and sound information contributions from a mobile phone camera directly into a television studio.
  • FIGS. 1a, 1b a first exemplary method for the timely ("live") integration of mobile picture material in TV / Internet programs and FIGS. 2a, 2b a second exemplary method for timely integration of mobile picture material in TV / Internet programs.
  • Figures 3a to 3d illustrate the driving ranges for luminance and chrominance according to Recommendation ITU-R BT.601 (Copyright for Figures 3a to 3d: Institute of Broadcasting GmbH, 2006).
  • a plurality of users shoot a five minute short film.
  • a PAL interface 3 is understood to mean a device which receives video data, possibly contained in other data, converts this video data into an analog signal, preferably an analog video / audio signal such as, for example, a PAL signal.
  • the PAL interface 2 also comprises means for converting the analog signal into an SD broadcasting signal. This can be done in the following way: 1. a mobile phone camera 1 calls a receiving station 2 (for example a mobile phone),
  • receiving station 2 receives the call
  • Receiving station 2 converts conversation (video call) into analog video / audio signal (stereo or mono), 4. the video / audio signal is synchronized and stabilized by a frame synchroniser 6 (also referred to as mixer),
  • the incoming video stream In order to feed the incoming signal streams of the video data (video stream) into a television program, the incoming video stream, inter alia, must be synchronized with the image refresh rate used in the studio, in particular also by the television server 4 (so-called genlock). (All devices of a studio use the same refresh rate or clock.) At the frame Synchronizer 6 is the clock of the image refresh rate used in the studio, and the incoming video stream is adapted to this refresh rate or synchronized with the Studio image refresh rate. Since the mobile phone camera 1 can be a completely normal device from the so-called consumer area, which does not have sophisticated transmission technology, the video stream is generally unstable.
  • This instability can be, for example, in a fluctuation of the refresh rate, a fluctuation of the amplitude by variable voltage or the like. consist.
  • These instabilities are also remedied by the synchronization (refresh rate) or by a readjustment of the amplitude.
  • These functions are adopted by the Frame Synchronizer 6 in the exemplary embodiment.
  • receiving station 2 calls mobile phone camera 1 as a video call via
  • Mobile phone camera 1 accepts call as video call
  • Receiving station 2 converts conversation (video call) into analogue video / audio signal (stereo or mono),
  • the video / audio signal is synchronized and stabilized by a Frame Synchronizer 6, 5. From then on, the video / audio signal is treated as an SD broadcasting signal.
  • the invention thus not only makes it possible to provide contributions from the mobile phone camera 1, but also allows the receiving station 2 to actively request a contribution.
  • the signal streams, ie the video streams 5, of the ten cell phone cameras 1 are processed in the editorial office using a data processing device or designed and published on a specially created website. Next Contributions, reports and moderation were on this website texts, images and life streams issued.
  • the data processing device is integrated into the PAL interface 3.
  • the advantage of using a mobile phone as a receiving station 2 is the possibility of direct reception of the incoming call from the mobile phone camera 1 (live idea).
  • this structure opens up the possibility of so-called image and sound feedback. Therefore, the receiver can talk to the sender (live switching call).
  • Studio generation (at least one camera (PAL)) in front of blue screen; several, e.g. ten, field offices: mobile phone cameras 1 as Satellite News Gathering (SNG);
  • PAL camera
  • SNG Satellite News Gathering
  • a receiving station 2 (which may be a second mobile phone), which is connected via a CVBS connection 7 with a PAL interface 3, which in turn establishes access to the TV server 4.
  • the PAL interface 3 consists in an exemplary embodiment of a video output (similar to a Nokia N95 already provided video output, which is provided there for stored on the phone movies).
  • a Black Magic Multi Converter Frae Snychronizer, A / D converter, Audio Embedder
  • SD-SDI Standard Definition Serial Digital Interface
  • Data memory 8 which is connected via LAN to the TV server 3.
  • the PAL interface 3 can be integrated in the mobile phone camera 1 or in the television server 3, or be realized as a stand-alone module.
  • the data memory 8 can be arranged separately or integrated into a component of the arrangement according to the invention.
  • 3G networks available to date are a bottleneck, so concessions to image quality must generally be made.
  • the bandwidth is too low in this case and the susceptibility (especially indoors) too high for a stable acceptable broadcast image signal via UMTS stream.
  • it is provided to use an amplifier for improving UMTS reception.
  • Another advantage is the greater mobility and larger, convenient coverage of mobile phone cameras 1 to deliver footage. Meanwhile, a politician who may be waiting for his connecting flight at the airport at the gate can, without further ado, be "connected" to his mobile camera 1 via an existing live broadcast.
  • an exemplary embodiment used a Quantel Newsbox with sQ Cut, sQ edit, and sQ edit plus.
  • the advantages of the system are above all the possibility of direct further processing and addressing of the incoming material with a time loss of ⁇ 10 seconds.
  • the addressing is done in an exemplary embodiment by real-time code. That is, the incoming post is assigned the source and time of the input.
  • Another development is that meta data of the sending mobile phone camera 1 is accessed.
  • the central data management 9 is due to the large number of incoming signal streams 5 from mobile phone image signals a prerequisite of central importance: With the available data capacity, the large amount of high quality material can cope: It is very fast from the large number of images offered select.
  • the television server 4 When a call arrives at the receiving station 2, the television server 4 automatically generates a subdirectory in which the newly incoming video data is stored.
  • the sub-directory is named after the incoming phone number.
  • the SubDirectory will be called / + 49171122345678.
  • a timecode Generator which is clocked on UTC (Universal Time Coordinated) is added during the process of reading into the TV server 4, the image data, the precise time as a time code (so-called real-time code). Beyond this information, there is the possibility of receiving metadata about the calling
  • Pair mobile phone camera 1 with this information This is done in detail as follows: subscribers are automatically located by means of the cell information from a separate server (called: “location server”), for which purpose an application was previously loaded onto the mobile phone camera 1, which transmits the cell information to the location server In that case, the release of the transmission of the cell information to the location server is preferably carried out automatically by the application The location of the location takes place continuously and independently of whether the subscriber is calling or not.
  • location server separate server
  • a call now arrives in the television server 4 it compares the number of the calling subscriber with the meta data (for example location) stored on the location server. This is done by comparing the phone number of the caller with the number stored on the location server. Since this meta data requires only a small bandwidth, this query can be made via the Internet. In practice, the image information of the incoming call can now be associated with the current exact location (e.g., a mark on digital map material such as googlemaps). It is also conceivable
  • GPS Global Positioning System
  • the invention is not limited in its embodiment to the above-mentioned preferred embodiments. Rather, a number of variants are conceivable, which make use of the inventive method and the arrangement according to the invention even with fundamentally different types of use.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un système de transmission de données d'image, ainsi qu'un programme informatique correspondant et qu'un support de stockage lisible par ordinateur correspondant, pouvant être utilisés en particulier dans une production télévisuelle pour incorporer, sensiblement en temps réel, des images de téléphone portable dans des programmes télévisuels. L'objet de l'invention est d'obtenir un procédé et un système de transmission de données d'image, ainsi qu'un programme informatique et qu'un support de stockage lisible par ordinateur correspondants, qui permettent de remédier aux désavantages des solutions connues, et qui permettent en particulier d'éditer, dans des studios de télévision, des données vidéo envoyées par des terminaux mobiles, et d'intégrer de telles données, sensiblement en temps réel, dans un programme télévisuel. A cette fin, le procédé de transmission de données d'image selon l'invention est caractérisé en ce que des données comprenant des données vidéo sont transmises d'au moins un terminal mobile au moins partiellement par au moins une liaison de communication sans fil à une unité de traitement de données; et qu'au moins les données vidéo sont converties, par cette unité de traitement de données, en un signal transmissible, et sont réacheminées sur un serveur télévisuel ou stockées en tant que codec vidéo dans une mémoire de données.
PCT/EP2008/066998 2007-12-06 2008-12-08 Procédé et système de transmission sans fil de données d'image, programme informatique et support de stockage lisible par ordinateur correspondants WO2009071695A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007059008.5 2007-12-06
DE102007059008 2007-12-06
DE102008002276.4 2008-06-06
DE102008002276A DE102008002276B4 (de) 2007-12-06 2008-06-06 Verfahren und Anordnung zur Übertragung von Bilddaten sowie ein entsprechendes Computerprogramm und ein entsprechendes computerlesbares Speichermedium

Publications (1)

Publication Number Publication Date
WO2009071695A1 true WO2009071695A1 (fr) 2009-06-11

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PCT/EP2008/066998 WO2009071695A1 (fr) 2007-12-06 2008-12-08 Procédé et système de transmission sans fil de données d'image, programme informatique et support de stockage lisible par ordinateur correspondants

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DE (1) DE102008002276B4 (fr)
WO (1) WO2009071695A1 (fr)

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CN101964904A (zh) * 2010-10-11 2011-02-02 北京中科大洋科技发展股份有限公司 一种利用无线通讯网络实现电视新闻直播的方法
CN101969439A (zh) * 2010-10-11 2011-02-09 北京中科大洋科技发展股份有限公司 一种利用无线通讯网络实现电视新闻直播的系统
WO2014031408A1 (fr) 2012-08-20 2014-02-27 Wolzien Thomas R Centre d'appels vidéo
CN105392020A (zh) * 2015-11-19 2016-03-09 广州华多网络科技有限公司 一种互联网视频直播方法，及系统
CN105657440A (zh) * 2016-01-05 2016-06-08 福建星网智慧科技股份有限公司 一种视频直播的方法及系统

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DE102010016323A1 (de) 2010-04-04 2011-10-06 Tim Frey Newreporter System, Anordnungen und Verfahren für Videoplattformen

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101964904A (zh) * 2010-10-11 2011-02-02 北京中科大洋科技发展股份有限公司 一种利用无线通讯网络实现电视新闻直播的方法
CN101969439A (zh) * 2010-10-11 2011-02-09 北京中科大洋科技发展股份有限公司 一种利用无线通讯网络实现电视新闻直播的系统
CN101964904B (zh) * 2010-10-11 2012-08-29 北京中科大洋科技发展股份有限公司 一种利用无线通讯网络实现电视新闻直播的方法
WO2014031408A1 (fr) 2012-08-20 2014-02-27 Wolzien Thomas R Centre d'appels vidéo
CN104685865A (zh) * 2012-08-20 2015-06-03 沃尔齐恩有限责任公司 视频呼叫中心
EP2898673A4 (fr) * 2012-08-20 2016-06-22 Wolzien Llc Centre d'appels vidéo
CN104685865B (zh) * 2012-08-20 2018-12-28 沃尔齐恩有限责任公司 视频呼叫中心
CN105392020A (zh) * 2015-11-19 2016-03-09 广州华多网络科技有限公司 一种互联网视频直播方法，及系统
CN105392020B (zh) * 2015-11-19 2019-01-25 广州华多网络科技有限公司 一种互联网视频直播方法，及系统
CN105657440A (zh) * 2016-01-05 2016-06-08 福建星网智慧科技股份有限公司 一种视频直播的方法及系统
CN105657440B (zh) * 2016-01-05 2018-11-13 福建星网智慧科技股份有限公司 一种视频直播的方法及系统

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