WO2004088984A1 - Systeme et procede de stockage et de recherche de donnees video avec conversion de la resolution - Google Patents

Systeme et procede de stockage et de recherche de donnees video avec conversion de la resolution Download PDF

Info

Publication number
WO2004088984A1
WO2004088984A1 PCT/GB2004/001492 GB2004001492W WO2004088984A1 WO 2004088984 A1 WO2004088984 A1 WO 2004088984A1 GB 2004001492 W GB2004001492 W GB 2004001492W WO 2004088984 A1 WO2004088984 A1 WO 2004088984A1
Authority
WO
WIPO (PCT)
Prior art keywords
media data
resolution
data
portions
stored
Prior art date
Application number
PCT/GB2004/001492
Other languages
English (en)
Inventor
Michael Koetter
Original Assignee
Bbc Technology Holdings Limited
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 Bbc Technology Holdings Limited filed Critical Bbc Technology Holdings Limited
Publication of WO2004088984A1 publication Critical patent/WO2004088984A1/fr

Links

Classifications

    • 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
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • 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
    • 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
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/42—Arrangements for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/06—Arrangements for scheduling broadcast services or broadcast-related services

Definitions

  • the present invention relates to the field of data storage and retrieval.
  • the invention relates to the storage and retrieval of media data.
  • news broadcasters may receive satellite or other external feeds from a plurality of sources 24 hrs a day. All of the data received is usually stored, since it is not possible for the receiver to determine which parts of the data will subsequently be useful to editors and programme makers.
  • the data received is received in an external format, typically in a transmission format and at a transmission resolution.
  • the data resolution of the received data is typically less than about 6Mb/s and may be about 3-5 Megabits per second (Mb/s). The ratio may be lower for other feeds (e.g. over a broadband link or satellite phone).
  • Mb/s Megabits per second
  • the data typically requires pre-processing to increase the resolution of the data or to conform it to an internal format.
  • the resolution is likely to be increased.
  • About 50Mb/s l-frame MPEG or 270 Mb/s SDI uncompressed are typical for normal definition and this may be significantly greater for high definition, but may be decreased with alternative compression technologies (e.g. MPEG-4).
  • prior art systems receive raw data from transmission sources, for example from satellite transmitters, convert the transmission-quality data to internal format, typically higher quality edit or broadcast quality data and store the converted data for later access and editing by editing systems.
  • transmission sources for example from satellite transmitters
  • convert the transmission-quality data to internal format, typically higher quality edit or broadcast quality data
  • store the converted data for later access and editing by editing systems.
  • a large amount of data must be converted at least to the editing resolution and stored in the system.
  • a method of managing media data comprising: receiving input media data from a media data source at a first resolution; storing the media data in a first archive at the first resolution; converting the input media data to a second resolution; providing at least a portion of the converted media data to at least one editing system; receiving output media data from the at least one editing system at the second resolution; checking whether portions of the output media data correspond directly to portions of stored input media data; storing the output media data at the second resolution, wherein at least some portions of the output media data which correspond directly to stored input media data are not stored at the second resolution.
  • the input data may be stored at the resolution at which it is received, without requiring the system to convert all of the input data to a second resolution. This may reduce multiple transcoding problems with the broadcast data, since at least portions of the broadcast data may always be recreated from the original stored input media data.
  • Data that is accessed by an editing system and hence converted to a second resolution for editing is received by the system at the second resolution.
  • the system does not store the data received at the second resolution if the data is directly derivable from the data stored at the first resolution. This may reduce the amount of data that needs to be stored by the system.
  • the present method may reduce the data storage requirements of the system, the quality of the final data output is not reduced, since the required data may be upconverted to a higher resolution when required to yield the same result as if a higher resolution had been stored.
  • Data that corresponds directly to stored input data preferably comprises data that is directly derivable from the input data. For example, if clips have been taken from the input data, but the clips themselves have not been modified, the edited clips may be recreated directly from the stored data at the first resolution, so data at the second resolution is preferably not stored by the system. Similarly, if the data has been edited so that captions are dynamically applied to the media data on playout, it may not be necessary to store the edited media data, but the edited data may be regenerated directly from the data stored at the first resolution.
  • the output media data at the second resolution may be stored by the system. For example, if frames of the data have been modified or if captions have been overlaid on the frames, it may not be possible to generate the data from the input data, hence the output data may be stored at the second resolution. Converting the data may advantageously mean that the system and method described herein may interact with an editing system as if it were a prior art storage system. This may allow prior art editing systems to be used in conjunction with the present system without modification.
  • checking whether portions of the output media data correspond directly to portions of stored input media data comprises analysing metadata associated with the input and/or output media data.
  • the data itself may be compared, but analysing metadata may advantageously be faster and require less processing that analysing the data itself.
  • the metadata may be stored with the media data itself or may be stored in a separate metadata database.
  • the second resolution may be higher than the first resolution.
  • the majority of the data may be stored at the lower, first resolution, which may allow the system to be implemented with a smaller data storage capacity. Only data required by the editing system needs to be converted to the second, higher resolution and the system may only store data at the second, higher, resolution if the output data does not correspond directly to the data already stored at the first, lower, resolution.
  • the method may further comprise subsequently enabling an editing system to access the media data at a selected one of the first or the second resolutions. Hence the data may be converted to the second system only on request by the editing system.
  • checking whether portions of the output media data correspond directly to portions of stored input media data comprises consulting a database comprising metadata associated with the input and/or output media data.
  • only the portion of the input media data that is provided to the at least one editing system is converted from storage in the archive to the second resolution. Hence data that is not requested by an editing system is not converted from the first resolution. This may reduce the storage and processing requirements of the system.
  • the conversion may be performed by either the storage system or the editing system.
  • the method may further comprise maintaining a database comprising metadata associated with the input and/or output media data.
  • the media data at the second resolution may be stored in a separate archive to the media data at the first resolution.
  • the two archives may be closely linked or interconnected, or may be two sections of the same archive.
  • the input media data comprises transmission- stream quality data.
  • the input media data is compressed and has a bit rate of less than about 8Mb/s, more preferably about 3Mb/s to about 5Mb/s.
  • the bit rate of the transmission-stream quality data may vary depending on the transmission stream. For example, for a satellite feed the bit rate may be about 3-5Mb/s. However, data received over a data transmission line into a port of the editing system may be received at a higher bit rate, possibly at a bit rate greater than 10Mb/s. For example, for HDTV signals, the transmission bit rate may be about 20Mb/s or greater.
  • the media data source comprises a satellite feed.
  • the input media data may comprise a satellite feed at about 3- 5Mb/s.
  • the input media data preferably comprises compressed data, for example using an MPEG compression standard.
  • compressed data for example using an MPEG compression standard.
  • other compression techniques may be used to compress and regenerate the data between different resolutions and it will be obvious to one skilled in the art that a wide range of compression ratios may be generated.
  • the output media data comprises broadcast quality data.
  • the data may be received at the archive in the format in which it is edited.
  • the output media data is compressed and has a bit rate of greater than about 10Mb/s, preferably about 50Mb/s. This may allow the data to be edited by user editing systems provided on user workstations.
  • the output bit rate is preferably increased if the user editing system can work with data at a higher bit rate
  • the output media data is uncompressed and has a bit rate of greater than about 10OMb/s, preferably about 270Mb/s, for example the output media data may be SDI format data.
  • the broadcast quality data has a high a bit rate as possible.
  • the broadcast quality data may have a bit rate of the order of 1Gb/s or even greater. High bit rate output data may provide a higher-quality signal to the viewer of the media data.
  • a method of obtaining media data from an archive comprising: receiving portions of media data at at least a first and a second resolution; dynamically converting the portions of the media data at the first resolution to media data at the second resolution; combining the converted portions of the media data with the portions of the media data at the second resolution.
  • the method further comprises determining whether the portions of the media data are received at the first or at the second resolution.
  • the resolution of the data may be determined based on metadata associated with the media data.
  • apparatus for managing media data comprising: means for receiving input media data from a media data source at a first resolution (for example an input interface); means for storing the media data in a first archive at the first resolution (for example a memory, such as a digital or analogue storage system, for example tape, disk or flash memory); means for converting the input media data to a second resolution (for example a transcoder); means for providing at least a portion of the converted media data to at least one editing system (for example, an interface with an editing system); means for receiving output media data from the at least one editing system at the second resolution (for example an interface with an editing system); means for checking whether portions of the output media data correspond directly to portions of stored input media data (for example a processor and associated memory); means for storing the output media data at the second resolution (for example a memory), wherein at least some portions of the output media data which correspond directly to stored input media data are not stored at the second resolution.
  • a first resolution for example an input interface
  • a first archive at the first resolution for example
  • the means for checking whether portions of the output media data correspond directly to portions of stored input media data comprises means for analysing metadata associated with the input and/or output media data (for example, a processor).
  • the second resolution is higher than the first resolution. For most embodiments, this is likely to be the case, since the first, input resolution, from an external source is likely to be lower than the internal resolution at which the data is edited and broadcast. However, the system may be advantageous even if the first and second resolutions are similar, or if the first resolution is higher than the second resolution since storing the data in the format in which it is received may reduce the likelihood of multiple transcoding errors in the data when it is broadcast or reconstructed from the archive.
  • only the portion of the input media data that is provided to the at least one editing system is converted to the second resolution.
  • the apparatus further comprises means for maintaining a database comprising metadata associated with the input and/or output media data (for example a processor and associated memory means).
  • means for maintaining a database comprising metadata associated with the input and/or output media data for example a processor and associated memory means.
  • the apparatus further comprises a second archive for storing the media data at the second resolution.
  • the input media data comprises transmission-stream quality data. More preferably, the input media data has a bit rate of less than about 10Mb/s.
  • the media data source comprises a satellite feed.
  • the output media data comprises broadcast quality data.
  • the output media data has a bit rate of greater than about 20Mb/s, preferably about 50Mb/s.
  • the output media data has a bit rate of greater than about 170Mb/s, preferably about 270Mb/s.
  • apparatus for obtaining media data from an archive comprising: means for obtaining portions of media data at at least a first and a second resolution (for example a processor and associated memory means or an input interface for receiving the media data); means for dynamically converting the portions of the media data at the first resolution to the second resolution (for example a processor); means for combining the converted portions of the media data with the portions of the media data at the second resolution (for example a combiner, such as a combiner in an editing or playout system).
  • a first and a second resolution for example a processor and associated memory means or an input interface for receiving the media data
  • means for dynamically converting the portions of the media data at the first resolution to the second resolution for example a processor
  • means for combining the converted portions of the media data with the portions of the media data at the second resolution for example a combiner, such as a combiner in an editing or playout system.
  • the apparatus further comprises means for determining whether the portions of the media data are obtained at the first or at the second resolution (for example a processor or analyser).
  • means for determining whether the portions of the media data are obtained at the first or at the second resolution for example a processor or analyser.
  • a method of distributed editing of media data comprising: storing the data at a first resolution at first and second locations; editing the media data at the first location to produce an edit decision list for the media data; transmitting the edit decision list to a further editing or playout system at the second location; reconstructing the edited data at the second location based on the stored data and the edit decision list.
  • Producing an edit decision list may allow the edited media data to be recreated from the original data. Hence, using two or more archives containing the same original data, the same edited data may be produced using the edit decision list. This may be more efficient than centrally storing or transmitting the edited data and may allow data to be edited over a distributed system.
  • the method further comprises converting the data to a second resolution before editing the data at the first location.
  • the data may be edited at a higher editing or broadcast resolution.
  • the first resolution may comprise a transmission-quality resolution, for example as received from a satellite feed
  • the second resolution may comprise a broadcast quality resolution or an editing quality resolution.
  • reconstructing the edited data comprises converting the data from the first resolution to a second resolution at the second location.
  • the method may further comprise transmitting at least one portion of edited data that does not correspond directly to data stored at the first resolution from the first location to the second location. For example, if a portion of data has been edited to add captions or images to the frames, it may not be possible to derive the higher-resolution data directly from the data stored at the first resolution. This portion of edited data may be transmitted, for example with the EDL, from the first location to the second location.
  • reconstructing the edited data comprises combining edited data received from the first location with data stored at the first resolution at the second location.
  • apparatus for distributed editing of media data comprising: means for storing the data at a first resolution at first and second locations (for example a memory, such as a tape, disk or flash-based memory); means for editing the media data (for example, an editing system) at the first location to produce an edit decision list for the media data; means for transmitting the edit decision list to a further editing or playout system at the second location (for example a transmission or output system); means for reconstructing the edited data at the second location based on the stored data and the edit decision list (for example, an editing system).
  • first and second locations for example a memory, such as a tape, disk or flash-based memory
  • means for editing the media data for example, an editing system
  • means for transmitting the edit decision list to a further editing or playout system at the second location for example a transmission or output system
  • means for reconstructing the edited data at the second location based on the stored data and the edit decision list for example, an editing system
  • a computer program or computer program product comprising instructions for carrying out a method of managing media data, the method comprising: receiving input media data from a media data source at a first resolution; storing the media data in a first archive at the first resolution; converting the input media data to a second resolution; providing at least a portion of the converted media data to at least one editing system; receiving output media data from the at least one editing system at the second resolution; checking whether portions of the output media data correspond directly to portions of stored input media data; storing the output media data at the second resolution, wherein at least some portions of the output media data which correspond directly to stored input media data are not stored at the second resolution.
  • a computer program or computer program product comprising instructions for carrying out a method of obtaining media data from an archive, the method comprising: receiving portions of media data at at least a first and a second resolution; dynamically converting the portions of the media data at the first resolution to media data at the second resolution; combining the converted portions of the media data with the portions of the media data at the second resolution.
  • a computer program or computer program product comprising instructions for carrying out a method of distributed editing of media data, the method comprising: storing the data at a first resolution at first and second locations; editing the media data at the first location to produce an edit decision list for the media data; transmitting the edit decision list to a further editing or playout system at the second location; reconstructing the edited data at the second location based on the stored data and the edit decision list.
  • the invention also provides a computer program and a computer program product for carrying out any of the methods described herein and/or for embodying any of the apparatus features described herein, and a computer readable medium having stored thereon a program for carrying out any of the methods described herein and/or for embodying any of the apparatus features described herein.
  • the invention also provides a signal embodying a computer program for carrying out any of the methods described herein and/or for embodying any of the apparatus features described herein, a method of transmitting such a signal, and a computer product having an operating system which supports a computer program for carrying out any of the methods described herein and/or for embodying any of the apparatus features described herein.
  • the methods and apparatus described herein may be implemented in conjunction with media input, editing and transmission systems, aspects of which are described in the applicant's co-pending patent applications.
  • aspects of a system for managing data for transmission are described in the applicant's co-pending patent application entitled “System and Method for Media Management”, Attorney Reference No. IK/26522WO, filed on 5 April 2004, the disclosure of which is hereby incorporated by reference in its entirety.
  • aspects of a system for the storage of data, in particular controlling media storage devices remotely are described in the applicant's co-pending patent application entitled “Media Storage Control”, Attorney Reference No. IK/26520WO, filed on 5 April 2004, the disclosure of which is hereby incorporated by reference in its entirety.
  • a resource allocation system which may be implemented as part of a media editing system is described in the applicant's co-pending patent application entitled "A Method and Apparatus for Dynamically Controlling a Broadcast Media Production System", Attorney Reference No. IK/26271 WO, the disclosure of which is hereby incorporated by reference in its entirety.
  • Aspects of a media editing system, in particular the control of media and related metadata in a non-linear media editing system, are further discussed in the applicant's co-pending patent application entitled “System and Method for Media Management", Attorney Reference No. IK/26521 WO, filed on 5 April 2004, the disclosure of which is hereby incorporated by reference in its entirety.
  • FIG. 1 is a schematic diagram of an embodiment of a prior art data storage and retrieval system
  • Fig. 2 is a schematic diagram of a data retrieval and storage system according to one embodiment
  • Fig. 3 is a schematic diagram of an embodiment of a system, which may be provided in conjunction with the systems and methods described herein;
  • Fig. 4 is a schematic diagram of media item structure;
  • Fig. 5 is a schematic diagram of component metadata;
  • Fig. 6 is a schematic overview diagram of a system in conjunction with which the methods and systems described herein may be implemented.
  • Fig. 1 data is received from a satellite feed 110 at a transmission rate of 3 Megabits per second (Mb/s). This data is decoded at an Integrated Receiver Decoder (IRD) 112. The resolution of the data is then transformed 116 from 3Mb/s to a higher resolution for editing, in the present embodiment, a resolution of 50Mb/s. The higher resolution data is then transmitted to a data archive 120 and stored at the 50mb/s resolution. Data items, comprising sections of the data, may then be accessed and read from the data store into editing systems 124, for example data items may be incorporated into clips 122 or referenced in Edit Decision Lists (EDL). One function of the editing system may be to increase the resolution of the data further to broadcast-quality data, for example to 270Mb/s. If the data received from the satellite transmission is intended for immediate
  • a copy of the data may be sent directly to an editing or playout system, such as a video server 118 via a Serial Digital Interface, which, in the present embodiment, converts the data to a resolution of 270Mb/s.
  • an editing or playout system such as a video server 118 via a Serial Digital Interface, which, in the present embodiment, converts the data to a resolution of 270Mb/s.
  • all of the data received may be upconverted to broadcast quality data and may be stored temporarily in the video server 118, for example for a day or for a week, to allow multiple users to access recently-received data readily. When the data is no longer required for immediate access, a copy of the data may be stored in the archive 120.
  • data may be received and converted into data elements, which may be called media item objects.
  • Fig. 4 illustrates an exemplary structure for a media item that might be handled in a media management system in accordance with an embodiment of the present invention.
  • the media item 400 is represented along a time axis extending horizontally across the page.
  • the media item comprises three separate media objects or tracks, 402, 404 and 406.
  • track 402 is video
  • tracks 404 and 406 are audio.
  • the tracks can be referred to as media essence.
  • Each media object or track can be divided in time into segments or portions. It should be noted that segments may have boundaries aligned across all tracks, such as segment 408, however a single segment in one track may span two or more segments in another track, such as segments 410 and 412.
  • Media items additionally comprise metadata, which describe attributes associated with a media item, and which is used to assist in processing of the media essence within the system e.g. storing, tracking, editing, archiving etc. These attributes may apply to the whole media item e.g. item duration, or may be specific to segments within the media item e.g. copyright holder (this will be discussed in greater detail below)
  • a media item can therefore be said to be made up of media essence (tracks), and associated metadata (attributes).
  • the table below describes a number of metadata attributes that can be associated with a media item:
  • each attribute or field associated with a media item can take varying forms.
  • a metadata field can comprise only a single value associated with a media item e.g. duration.
  • a metadata field can take the form of 'components'.
  • Figure 5 shows a schematic representation of a media item 502 with the time axis extending horizontally across the page.
  • Component metadata has an associated timeline illustrated as 504. In other words it is information that relates to a particular time segment of a media item.
  • the metadata value for a particular attribute for a particular media item can therefore vary in time.
  • component fields may also have a default value 510, which is used to provide a value for a component field at all time instances along a media item for which no other value has been assigned.
  • component values have been assigned for time segments 506 and 508, and the remainder of the component timeline takes the default value.
  • Certain component fields also have a summary value 512 and optionally an override value 514.
  • the summary value like the default value is an overall value for the whole media item, and is derived from the component values along the media item. This can for example be performed using an arithmetic or Boolean operation on the individual component values.
  • the summary value may optionally be replaced by a user input override value.
  • rules defining the manner in which the summary value may be overridden e.g. the summary value may only be made greater, or more restrictive. If the override is removed, or if the summary value changes such that the override no longer satisfies the rules, then the summary will be shown again.
  • Metadata fields may exhibit propagation properties.
  • metadata propagation is supported both from parent to child media items and also from child to parent media items.
  • Inheritance propagation refers to metadata from an item being automatically associated also with one or more child items.
  • Bi-directional propagation refers to metadata from an item being automatically associated with both parent item and child item(s).
  • media item essence, or media data may further by converted by the system to other data qualities (e.g. desktop, broadcast etc).
  • the essence may be created by the system automatically on ingest.
  • Other qualities may include web quality, desktop quality and keyframe quality, and therefore, in a prior art system, four Media Item Instances may exist on the system for a Media Item.
  • the non-broadcast quality Media Item Instances may be used for viewing and editing purposes within the system only.
  • Final archiving of a Media Item may mean that a broadcast quality copy of the
  • Media Item essence is made on an offline storage item (e.g. tape or disc). All essence may then be deleted from the online and offline archive stores with the exception of the web quality essence and keyframe essence.
  • the metadata for the Media Item, and the metadata for the associated keyframes, Components and Bookmarks may also be kept online. All operations from the system to Offline Archive are copy actions. A move action is performed by first copying the item to the relevant store and then later by the system deleting the essence from the current online store.
  • the metadata will additionally include a tape ID to facilitate a user requesting that items on tape be brought back online.
  • a web host may be provided to cater for users on a low bandwidth network with a requirement to access media. For example, users may have 56Kb or ISDN connections. Such low bandwidth availability precludes working with 1.5 Mbps Desktop media. However, they will still be able to access and update metadata, whilst also being able to view Web media.
  • Fig. 2 illustrates one embodiment of the system described herein.
  • data is received from a satellite feed 210 and is decoded at the IRD 212.
  • the data is then transferred directly to an input archive 224 in an archive system 220 where it is stored at the input or transmission resolution, in this embodiment at 3Mb/s.
  • the received data may also be upconverted to broadcast quality and copied to a video server for editing or playout 216, 222 via a Serial Digital Interface 214.
  • a low-resolution copy of the data is preferably also transferred to the archive 224.
  • the broadcast-quality data may be stored on the video server 216 for a short time period, for example for a day or a week, and may allow portions of the media data to be played out directly from the video server. This may further allow fast access for users to media data that is likely to be required frequently.
  • Media data, or media item objects may be transferred to the archive system 220 after the time period.
  • the archive system 220 preferably determines whether the data transferred from the video server 216 or the editing system 230 corresponds directly to data stored at the input resolution.
  • the archive interface 226 determines whether the data corresponds to data stored at the input resolution based on the metadata associated with the media data, for example using the metadata system described above.
  • the output data is stored at the second, edited resolution.
  • the output data is stored in a separate but interconnected part of the archive system 220, the editing resolution archive 228. Subsequent users of the same data may then retrieve the higher-resolution data from the editing resolution archive 228 and use and edit the data further in the high-resolution format.
  • the original, unedited data is also retained in the transmission resolution archive 224.
  • the output data is not stored at the second resolution. Rather the data is discarded by the archive interface 226.
  • the output data is reconstructed from the metadata associated with the output data and the input data if the data is subsequently requested by an editing or a playout system.
  • the data in the archive system 220 may be requested from the archive system 220 by users via the editing system 230.
  • the archive system determines whether the requested data is available at the input resolution or at the converted resolution and converts the data as necessary, for example at the archive interface 226, to an editing resolution before transmitting the data to the editing system 230.
  • the resolution may be increased to an editing resolution of 50mb/s.
  • the data may be edited by the user and the editing system 230 may amend the metadata associated with the data to indicate that the data has been edited and preferably to indicate the nature of the editing performed. Edited data may then be transferred back to the archive system 220.
  • the archive interface 226, may determine whether the output data is directly derivable or corresponds to data already stored in the archive system 220 at the first resolution. If so, the output data is not stored. If the edited data does not correspond to data already stored, however, the edited data is stored in the archive system 220, preferably in the second archive 228.
  • conversion of the data and determination of whether to store the output data may be performed by means associated with the archive system 220, such as the archive interface described above, or may be performed by means associated with the editing system 230.
  • the final broadcast data is preferably copied back into the archive system 220.
  • the archive interface determines whether the output data corresponds to input data and stores only the output data that is not directly derivable from input data.
  • the final broadcast data may be archived to a persistent store, for example to tape or to disc, and only the lower-quality data may be maintained in the archive system 220.
  • lower quality data which may allow the broadcast data to be recreated, may be output to the persistent store by the archive system 220.
  • a database associated with the archive may be provided to maintain a record of which items or sections of data have been accessed by editing systems and edited. Editing systems accessing data may then consult the database to determine whether the requested data is available in editing resolution format or only in transmission resolution format.
  • FIG. 3 A further embodiment of a system, which may be provided in conjunction with the embodiments described above, is illustrated in Fig. 3.
  • one or more satellites may simultaneously broadcast the same media data to a plurality of receiving stations 312, each of which may store the media data in an archive 314, 316.
  • a satellite system may broadcast the same data to archives and editing systems on the East and on the West coasts of America.
  • the media data is stored at the transmission resolution without being converted to an editing resolution.
  • An editing system 318 operated by a user may request data from an archive 314 and the data may be supplied at the editing resolution.
  • the editing system may then edit the data and produce an edit decision list (EDL) which may detail all of the editing operations performed on the original data to produce the edited data.
  • EDL edit decision list
  • one option may be to transmit the edited data from the first archive 314 to a second archive 316 to allow the second editing system 320 to access the data.
  • the EDL is transmitted to the second editing system 320.
  • the second editing system 320 may then access the unedited data stored in the second archive 316 and use the EDL to recreate the edited data.
  • Data may be received in different formats and at different resolutions to the 3Mb/s satellite feed described above and the broadcast and editing resolutions may be different to the 270Mb/s and the 50Mb/s resolutions described.
  • the principles described herein may be applied to any editing system with an input resolution that is different to the output resolution.
  • the systems and methods described may be particularly advantageous in systems which receive large quantities of data but in which not all of the data is likely to be accessed and used.
  • a metacore 1200 is at the centre of the system shown, and comprises a metadata store 1201 and a media store 1202.
  • Media intake for example from video feeds, agencies, newsgathering teams etc. can be received via an edit matrix 1206 which is controlled by a network control system 1208.
  • the media may be assigned metadata values which are stored in the metadata store.
  • Media intake can also be received from viewing and editing services 1210 and Archive service 1212.
  • the metadata values may be imported with the incoming media, may be assigned values by a system operator or may be assigned default values.
  • the associated media is then stored in the media store 1202.
  • Users of the system can use viewing and editing services 1210 to view and edit media managed by the system, and can search the system by metadata attributes to find relevant media. Once the relevant metadata describing the desired media has been found, the system can retrieve the associated media from the media store (if it exists there) for use by the user. Users can create new media items from existing essence, but with new metadata (which may be derived from existing metadata as will be explained below) to be input into the metacore.
  • the media store is an online store, and media held within it can be accessed and manipulated directly via devices networked to the metacore.
  • media held within it can be accessed and manipulated directly via devices networked to the metacore.
  • the practical constraints of media storage dictate that only a certain volume of media can be maintained online in this way, and as new media is constantly fed into the system, existing media must be removed. This is particularly true of the media essence, and less so of the metadata. If it is determined that the media is important and cannot simply be deleted, it must be stored offline, or archived. Both the process of selecting material to be archived, and the process of archiving it require considerable resources.
  • An archive service 1212 is therefore linked to the metacore and the embodiments of the systems and method described herein may be used to provide the archive service.
  • the archive service is in turn linked to one or more persistent analogue or digital data stores, for example VTRs 1214, discs or flash memory.
  • the archive service identifies media, via its metadata, to be taken from the media store and archived (offline).
  • the archive service can also act to re-ingest data into the (online) media store, for example according to the systems and methods described herein.
  • the metacore is connected to transmission servers 1216. These transmission servers can accept media items, which are ready to be broadcast on transmission system 1218.
  • the system also supports web-based output, and the metacore, is further linked to a post processor 1220, which in turn feeds a web hosting 1222.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Television Signal Processing For Recording (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Multi Processors (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de gestion des données multimédia dans une mémoire multimédia, et de mise en forme des données. Les données multimédia d'entrée sont reçues à une première résolution en provenance d'une source de données multimédia, et sont stockées dans une première archive à cette première résolution. Les données multimédia d'entrée sont en outre converties à une seconde résolution et au moins une partie de ces données multimédia converties est envoyée vers au moins un système de mise en forme. Les données multimédia de sortie sont reçues à la seconde résolution, en provenance d'au moins un système de mise en forme, et le système vérifie si des portions de ces données multimédia de sortie correspondent directement à des portions de données multimédia d'entrée stockées. Les données multimédia de sortie sont stockées à la seconde résolution, mais au moins certaines portions des données multimédia de sortie, qui correspondent directement aux données multimédia d'entrée stockées, ne sont pas stockées à la seconde résolution.
PCT/GB2004/001492 2003-04-04 2004-04-05 Systeme et procede de stockage et de recherche de donnees video avec conversion de la resolution WO2004088984A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46064903P 2003-04-04 2003-04-04
US60/460,649 2003-04-04

Publications (1)

Publication Number Publication Date
WO2004088984A1 true WO2004088984A1 (fr) 2004-10-14

Family

ID=33131929

Family Applications (7)

Application Number Title Priority Date Filing Date
PCT/GB2004/001481 WO2004088887A2 (fr) 2003-04-04 2004-04-05 Systeme et procede de gestion multimedia
PCT/GB2004/001506 WO2004088990A2 (fr) 2003-04-04 2004-04-05 Commande de stockage de contenu multimedia
PCT/GB2004/001505 WO2004088553A2 (fr) 2003-04-04 2004-04-05 Procede et appareil permettant de commander dynamiquement un systeme de production de contenu multimedia diffuse
PCT/GB2004/001492 WO2004088984A1 (fr) 2003-04-04 2004-04-05 Systeme et procede de stockage et de recherche de donnees video avec conversion de la resolution
PCT/US2004/010766 WO2004090677A2 (fr) 2003-04-04 2004-04-05 Systeme et procede de traitement de contenu multimedia
PCT/GB2004/001468 WO2004088663A2 (fr) 2003-04-04 2004-04-05 Processeur de media
PCT/GB2004/001493 WO2004088664A2 (fr) 2003-04-04 2004-04-05 Systeme et procede de gestion de multimedia

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/GB2004/001481 WO2004088887A2 (fr) 2003-04-04 2004-04-05 Systeme et procede de gestion multimedia
PCT/GB2004/001506 WO2004088990A2 (fr) 2003-04-04 2004-04-05 Commande de stockage de contenu multimedia
PCT/GB2004/001505 WO2004088553A2 (fr) 2003-04-04 2004-04-05 Procede et appareil permettant de commander dynamiquement un systeme de production de contenu multimedia diffuse

Family Applications After (3)

Application Number Title Priority Date Filing Date
PCT/US2004/010766 WO2004090677A2 (fr) 2003-04-04 2004-04-05 Systeme et procede de traitement de contenu multimedia
PCT/GB2004/001468 WO2004088663A2 (fr) 2003-04-04 2004-04-05 Processeur de media
PCT/GB2004/001493 WO2004088664A2 (fr) 2003-04-04 2004-04-05 Systeme et procede de gestion de multimedia

Country Status (1)

Country Link
WO (7) WO2004088887A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7493350B2 (en) 2004-10-25 2009-02-17 International Business Machines Corporation Entity based configurable data management system and method
US7587507B2 (en) 2005-07-22 2009-09-08 Microsoft Corporation Media recording functions in a streaming media server
EP1758398A1 (fr) 2005-08-23 2007-02-28 Syneola SA Moyens d'interface pour metadata et utilisateur basés sur une semiotique à plusieurs niveaux et une logique floue pour un système interactif multimédia ayant une capacité d'adaptation par acquisition de connaissances
US8019155B2 (en) 2007-03-26 2011-09-13 Eastman Kodak Company Digital object information via category-based histograms
US8903842B2 (en) * 2007-10-26 2014-12-02 Microsoft Corporation Metadata driven reporting and editing of databases
GB2522296B (en) * 2014-10-08 2016-11-02 Deluxe Broadcast Services Ltd Broadcasting Apparatus
US11693827B2 (en) 2016-12-29 2023-07-04 Microsoft Technology Licensing, Llc Syncing and propagation of metadata changes across multiple endpoints
CN111508468B (zh) * 2020-04-17 2021-01-01 北京灵伴即时智能科技有限公司 录音编辑管理方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072983A2 (fr) * 1996-04-12 2001-01-31 Avid Technology, Inc. Système multimedia avec mécanismes amélieorées pour gestion de données
WO2001028238A2 (fr) * 1999-10-08 2001-04-19 Sarnoff Corporation Procede et appareil permettant d'ameliorer et d'indexer des signaux video et audio
US20030009773A1 (en) * 2001-06-25 2003-01-09 Carlson Randolph S. Video event capture, storage and processing method and apparatus
US6539163B1 (en) * 1999-04-16 2003-03-25 Avid Technology, Inc. Non-linear editing system and method employing reference clips in edit sequences
WO2003077549A1 (fr) * 2002-03-13 2003-09-18 Imax Corporation Systemes et procedes permettant de remasterisation ou de modification numerique de films cinematographiques ou autres donnees de sequences d'images

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1322422C (fr) * 1988-07-18 1993-09-21 James P. Emmond Fichier indexe a cle unique pour gisements de file d'attente de traitement transactionnel
US4989191A (en) * 1989-01-03 1991-01-29 Frank Sheafen Kuo Data processing system with mixed media memory packs
US5428737A (en) * 1991-10-16 1995-06-27 International Business Machines Corporation Comprehensive bilateral translation between SQL and graphically depicted queries
JP3248380B2 (ja) * 1994-12-15 2002-01-21 ソニー株式会社 データ復号化装置およびデータ復号化方法
JPH0981497A (ja) * 1995-09-12 1997-03-28 Toshiba Corp 実時間ストリームサーバ並びに実時間ストリームデータの格納方法および転送方法
US5826081A (en) * 1996-05-06 1998-10-20 Sun Microsystems, Inc. Real time thread dispatcher for multiprocessor applications
US5964849A (en) * 1997-04-01 1999-10-12 Sony Corporation Controlling video devices
JP3741299B2 (ja) * 1997-04-06 2006-02-01 ソニー株式会社 映像信号処理装置及び映像信号処理方法
JP4150083B2 (ja) * 1997-09-25 2008-09-17 ソニー株式会社 符号化ストリーム生成装置及び方法、ならびに編集システム及び方法
US6070228A (en) * 1997-09-30 2000-05-30 International Business Machines Corp. Multimedia data storage system and method for operating a media server as a cache device and controlling a volume of data in the media server based on user-defined parameters
US6215485B1 (en) * 1998-04-03 2001-04-10 Avid Technology, Inc. Storing effects descriptions from a nonlinear editor using field chart and/or pixel coordinate data for use by a compositor
US20030001880A1 (en) * 2001-04-18 2003-01-02 Parkervision, Inc. Method, system, and computer program product for producing and distributing enhanced media
US6766357B1 (en) * 1999-04-15 2004-07-20 Avid Technology, Inc. Apparatus and method for efficient transfer of multimedia data for playback
US6792615B1 (en) * 1999-05-19 2004-09-14 New Horizons Telecasting, Inc. Encapsulated, streaming media automation and distribution system
WO2000072574A2 (fr) * 1999-05-21 2000-11-30 Quokka Sports, Inc. Architecture de commande du flux et de la transformation de donnees multimedia
WO2001046818A1 (fr) * 1999-12-23 2001-06-28 Moynihan Michael W Systeme de canal video personnel
US20010037379A1 (en) * 2000-03-31 2001-11-01 Noam Livnat System and method for secure storage of information and grant of controlled access to same
US6954795B2 (en) * 2000-04-05 2005-10-11 Matsushita Electric Industrial Co., Ltd. Transmission/reception system and method for data broadcast, and transmission apparatus for data broadcast
US6882793B1 (en) * 2000-06-16 2005-04-19 Yesvideo, Inc. Video processing system
US20020089602A1 (en) * 2000-10-18 2002-07-11 Sullivan Gary J. Compressed timing indicators for media samples

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072983A2 (fr) * 1996-04-12 2001-01-31 Avid Technology, Inc. Système multimedia avec mécanismes amélieorées pour gestion de données
US6539163B1 (en) * 1999-04-16 2003-03-25 Avid Technology, Inc. Non-linear editing system and method employing reference clips in edit sequences
WO2001028238A2 (fr) * 1999-10-08 2001-04-19 Sarnoff Corporation Procede et appareil permettant d'ameliorer et d'indexer des signaux video et audio
US20030009773A1 (en) * 2001-06-25 2003-01-09 Carlson Randolph S. Video event capture, storage and processing method and apparatus
WO2003077549A1 (fr) * 2002-03-13 2003-09-18 Imax Corporation Systemes et procedes permettant de remasterisation ou de modification numerique de films cinematographiques ou autres donnees de sequences d'images

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THOMAS P: "ENTERPRISE CONTENT MANAGEMENT-SYSTEME IN BROADCAST UND POSTPRODUCTION ANFORDERUNGEN, KONZEPTE, BENUTZER, ARBEITSABLAEUFE, ARCHITEKTUREN", FERNSEH UND KINOTECHNIK, VDE VERLAG GMBH. BERLIN, DE, vol. 55, no. 11, November 2001 (2001-11-01), pages 659 - 662,664, XP001092531, ISSN: 0015-0142 *

Also Published As

Publication number Publication date
WO2004088553A3 (fr) 2004-12-09
WO2004088990A3 (fr) 2004-11-18
WO2004088990A2 (fr) 2004-10-14
WO2004090677A2 (fr) 2004-10-21
WO2004088663A3 (fr) 2004-12-02
WO2004088663A2 (fr) 2004-10-14
WO2004088664A2 (fr) 2004-10-14
WO2004090677A9 (fr) 2005-03-31
WO2004088887A2 (fr) 2004-10-14
WO2004088553A2 (fr) 2004-10-14
WO2004088664A3 (fr) 2005-03-17
WO2004088887A3 (fr) 2005-06-30
WO2004090677A3 (fr) 2007-05-10

Similar Documents

Publication Publication Date Title
US7035468B2 (en) Methods and apparatus for archiving, indexing and accessing audio and video data
US9502075B2 (en) Methods and apparatus for indexing and archiving encoded audio/video data
US6947598B2 (en) Methods and apparatus for generating, including and using information relating to archived audio/video data
US8422733B2 (en) Method and apparatus for progressively deleting media objects from storage
US8990214B2 (en) Method and system for providing distributed editing and storage of digital media over a network
US8972862B2 (en) Method and system for providing remote digital media ingest with centralized editorial control
US7970260B2 (en) Digital media asset management system and method for supporting multiple users
US20120266203A1 (en) Ingest-once write-many broadcast video production system
US20070107012A1 (en) Method and apparatus for providing on-demand resource allocation
US20020122656A1 (en) Method and apparatus for recording broadcast data
US8401370B2 (en) Application tracks in audio/video containers
US20010009446A1 (en) Editing system with router for connection to HDTV circuitry
WO2004088984A1 (fr) Systeme et procede de stockage et de recherche de donnees video avec conversion de la resolution
CN101395910A (zh) 用于记录对媒体内容的编辑的方法和系统
Mauthe et al. MPEG standards in media production, broadcasting and content management
Bergeron File Based Sports Production

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase