WO2022259419A1 - 伝送システム、伝送方法、および、伝送プログラム - Google Patents

伝送システム、伝送方法、および、伝送プログラム Download PDF

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Publication number
WO2022259419A1
WO2022259419A1 PCT/JP2021/021912 JP2021021912W WO2022259419A1 WO 2022259419 A1 WO2022259419 A1 WO 2022259419A1 JP 2021021912 W JP2021021912 W JP 2021021912W WO 2022259419 A1 WO2022259419 A1 WO 2022259419A1
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WO
WIPO (PCT)
Prior art keywords
video
packets
transmission system
low
packet
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/021912
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English (en)
French (fr)
Japanese (ja)
Inventor
拓郎 山口
康弘 持田
大介 白井
高弘 山口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to US18/568,350 priority Critical patent/US20240275837A1/en
Priority to JP2023526724A priority patent/JPWO2022259419A1/ja
Priority to PCT/JP2021/021912 priority patent/WO2022259419A1/ja
Publication of WO2022259419A1 publication Critical patent/WO2022259419A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/70—Media network packetisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements

Definitions

  • the present invention relates to transmission systems, transmission methods, and transmission programs.
  • SMPTE ST2110 is a method for transmitting uncompressed video and audio over networks.
  • SMPTE ST2110-20 describes a method for storing and transmitting a video essence in the payload of an RTP (Real-time Transport Protocol) packet (Non-Patent Document 1).
  • RTP Real-time Transport Protocol
  • Non-Patent Document 1 the number of packets per frame is constant as long as the video parameters and the method of mapping pixels to RTP packets are unchanged.
  • the payload part of the RTP packet contains the pixel values of the pixels that make up the video and the RTP payload header required for reconstruction on the receiving side.
  • the receiving side reconstructs the pixel values by arranging the pixel values accordingly.
  • Uncompressed video can now be transmitted over the network, and it is expected that more streams will be transmitted within the network than ever before. Furthermore, in order to use technologies such as redundant transmission, it became necessary to change the construction of network paths in real time. When making such a configuration change, it is essential not to adversely affect the current stream transmission, and for that, it is necessary to know which stream is flowing on which path.
  • next-generation transmission where high-resolution video is expected to be sent without compression, extremely high processing performance is required to acquire all stream information in the operating network as it is and process it in real time. can only be realized in a limited environment.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the load on the network while making it possible to grasp the stream flowing through the network.
  • one aspect of the present invention is a transmission system comprising: a duplicating unit for duplicating a plurality of packets obtained by packetizing an uncompressed video stream; a filter for filtering the duplicated packets; a generator for generating thumbnail images or low-resolution video from subsequent packets.
  • One aspect of the present invention is a transmission method performed by a transmission system, comprising: duplicating a plurality of packets obtained by packetizing an uncompressed video stream; filtering the duplicated packets; and C. generating a thumbnail image or low resolution video.
  • One aspect of the present invention is a transmission program that causes a computer to function as the transmission system.
  • FIG. 1 is a diagram illustrating a configuration example of a transmission system according to a first embodiment
  • FIG. 4 is a flowchart showing transmission processing
  • FIG. 10 is a diagram illustrating a configuration example of a transmission system according to a second embodiment
  • FIG. 11 is a diagram illustrating a configuration example of a transmission system according to a third embodiment
  • FIG. 12 is a diagram illustrating a configuration example of a transmission system according to a fourth embodiment
  • FIG. It is a hardware configuration example.
  • FIG. 1 is a system configuration diagram showing a configuration example of a transmission system according to the first embodiment.
  • the transmission system of this embodiment includes at least one relay device 2 arranged on the network and a management device 1 that aggregates information.
  • the management device 1 and relay device 2 are connected wirelessly or by wire.
  • the relay device 2 is connected to other network devices 4 and 5 by wire or wirelessly.
  • the network devices 4 and 5 include, for example, transmitting/receiving devices.
  • the illustrated relay device 2 relays the stream transmitted from the network device 4 to the network device 5 .
  • the stream of this embodiment is an uncompressed image and holds pixel value data and coordinate information, like RTP packets packetized according to SMPTE ST 2110.
  • video stream an uncompressed video stream
  • video stream an uncompressed video stream
  • it may be an uncompressed video/audio stream.
  • the illustrated interconnecting device 2 has a reception port 21, a replication unit 22, a transmission port 23, a filter 24, a processing unit 30, a packet generation unit 25, and a transmission port 26.
  • the reception port 21 receives uncompressed video packets (hereinafter referred to as "video packets") in which the video stream is packetized from the network device 4.
  • the duplication unit 22 duplicates (mirrors) the video packet received by the reception port 21 and sends it to the filter 24 . Also, the duplicating unit 22 outputs the received video packet to the transmission port 23 .
  • the transmission port 23 transmits the video packet to the next network device 5 .
  • RTP packets are used as video packets in this embodiment, they are not limited to RTP packets, and packets other than RTP packets may be used.
  • the filter 24 filters the video packets in the relay device 2 before transmitting the video packets to the management device 1 .
  • Filter 24 filters (passes or discards) the duplicated video packets according to predetermined criteria.
  • the number of packets to be retained and their arrangement are important. It is necessary to keep the number of packets to the minimum necessary so that even narrow bandwidths can be processed. Also, even if the number of packets is the same, the number of packets per unit time can be reduced by acquiring packets over a plurality of frames compared to acquiring packets intensively for one frame. When acquiring packets over a plurality of frames, the amount of information for each local region may be increased by acquiring packets at different positions in different frames.
  • the filter 24 sends the filtered video packets to the packet storage unit 31 of the processing unit 30 .
  • the processing unit 30 includes a packet storage unit 31 and a generation unit 32.
  • the video packets after filtering are accumulated in the packet accumulation unit 31 .
  • the packet accumulation unit 31 sends the video packets to the generation unit 32 when the amount of packets necessary for generating thumbnail images or low-resolution video is accumulated.
  • the setting of the required number of packets it is possible to set a constraint to leave the end of the packet at the end of the frame by filtering, and to grasp the frame unit by the marker of the RTP header.
  • the number of packets that make up one frame is known, the number of packets after thinning used for image processing is set without considering the beginning or end of the frame, and continuous multiple frames are acquired until the set number is reached. good too.
  • the generating unit 32 generates a thumbnail image or a low-resolution video (low-resolution frame) from the filtered video packets, and sends it to the packet generating unit 25.
  • the generation unit 32 acquires the pixel value data of the uncompressed video and the coordinates (position information) of the pixel value data from the video packet, and uses them to generate a thumbnail image or a low-resolution video.
  • the generation unit 32 acquires the coordinates of the pixel value data held in the media payload from the payload header of the RTP packet (video packet) defined by SMPTE2110.
  • An RTP packet has an RTP header, a payload header containing information (such as coordinates) about pixel value data, and a media payload containing pixel value data.
  • the generation unit 32 may perform image reduction using a classical resampling method (resolution conversion method) such as Bilinear or Bicubic on the acquired coordinates.
  • a classical resampling method such as Bilinear or Bicubic
  • the generation unit 32 When performing processing from pixel value data in multiple frames, the generation unit 32 considers object movement between frames, and does not treat frames equally, but processes a certain frame as main information. Techniques such as selecting frames or increasing the reduction ratio to reduce the effect of a small amount of movement may be adopted.
  • the generation unit 32 may utilize machine learning (learning model).
  • the generating unit 32 generates a thumbnail image or a low-resolution video using a machine-learned learning model using pixel value data and coordinates of an RTP packet or an output image obtained by the above-described resampling method as input.
  • the generation unit 32 may reconstruct an incomplete image in which only the known pixels of the acquired pixel value data are arranged based on the coordinates, and solve the regression problem of generating the thumbnail image therefrom.
  • the generation unit 32 may be notified in advance of important part coordinates representing the outline of the video as sub information, and the generation unit 32 may adopt trimming or seam carving including them to reduce the image size.
  • the generation unit 32 may switch the generation method based on the required resolution of the display unit 13, the amount of parallel-processed streams, etc., instead of using a single method.
  • the generating unit 32 may use a resampling method when displaying multiple streams side by side, and may utilize machine learning when a request to confirm an overview of one of the streams is input.
  • the packet generator 25 packetizes the thumbnail image or low-resolution video generated by the generator 32 to generate a plurality of video packets, and sends the generated video packets to the transmission port 26 .
  • the transmission port 26 transmits the received video packet to the management device 1 .
  • Video packets of thumbnail images or low-resolution video transmitted from one or more relay devices 2 are input to the management device 1 . Further, when relaying a plurality of video streams, relay device 2 transmits video packets of thumbnail images or low-resolution video to management device 1 for each video stream.
  • the management device 1 has a reception port 11 , a reconstruction section 12 and a display section 13 . Note that the management device 1 may have a display device (display) outside the management device 1 without the display unit 13 .
  • the reception port 11 receives video packets from the relay device 2 and sends them to the reconstruction unit 12 .
  • the reconstructing unit 12 reconstructs the video packets to reconstruct thumbnail images or low-resolution videos, and outputs the reconstructed images to the display unit 13 .
  • the display unit 13 displays thumbnail images or low-resolution video.
  • the thumbnail image or low-resolution video generated by the generation unit 32 of the relay device 2 is finally displayed on the display unit 13 of the management device 1 or on a display device installed outside via the network.
  • the video stream on the network is visualized and displayed in a user-visible manner.
  • the display unit 13 may display information indicating what kind of video stream is flowing between which devices on the network using thumbnail images or low-resolution images. That is, the display unit 13 may display thumbnail images or low-resolution video as a video stream flowing between the network devices 4 and 5 . For example, the display unit 13 may display a line representing the connection between devices and a thumbnail image or a low-resolution video superimposed on the line.
  • a line representing a connection between devices may be displayed by obtaining a route in advance by confirming that the management device 1 or the relay device 2 can actually communicate by ping or the like.
  • the line representing the connection between devices indicates that when transmission is actually performed, the management device 1 acquires the route by acquiring information from the NMOS (which manages information on terminals existing on the network), which will be described later. may be displayed as Further, the reconstructing unit 12 may acquire the transmission source address and the destination address included in the video packet, and acquire the line representing the connection between the devices.
  • a display device outside the management device 1 may display a thumbnail image or the like superimposed on the fiber.
  • the thumbnail image of the video stream flowing through the fiber can be displayed on the fiber. is displayed overlaid on the
  • FIG. 2 is a flowchart showing the transmission processing of this embodiment.
  • the relay device 2 receives video packets (RTP packets) in which an uncompressed video stream is packetized from the network device 4, and duplicates the received video packets (S11). Also, the relay device 2 transmits the received video packet to the network device 5 .
  • RTP packets video packets
  • S11 received video packets
  • the relay device 2 filters and thins out the duplicated video packets (S12), and uses the thinned out packets to generate a thumbnail image or a low-resolution video (S13).
  • the relay device 2 packetizes the generated thumbnail image or low-resolution video, and transmits a plurality of video packets to the management device 1 (S14).
  • the management device 1 receives the video packets from the relay device 2, reconstructs the received video packets, and displays thumbnail images or low-resolution video (S15).
  • FIG. 3 is a system configuration diagram showing a configuration example of a transmission system according to the second embodiment.
  • the transmission system of this embodiment includes at least one relay device 2 and a management device 1 .
  • the processing unit 30 is provided not in the relay device 2A but in the management device 1A. Others are the same as those of the first embodiment.
  • the relay device 2A has a reception port 21, a duplicator 22, a transmission port 23, a filter 24, and a transmission port .
  • the management device 1A has a transmission port 11, a processing section 30, and a display section 13. FIG.
  • the filter 24 of the interconnecting device 2A filters the duplicated video packets and sends the filtered packets to the transmission port 26.
  • the reception port 11 of the management device 1A receives the filtered video packet and sends it to the processing unit 30.
  • the processing unit 30 generates a thumbnail image or a low-resolution video from the filtered video packets, as in the first embodiment.
  • the display unit 13 displays the generated thumbnail image or low-resolution video.
  • FIG. 4 is a system configuration diagram showing a configuration example of a transmission system according to the third embodiment.
  • the transmission system of this embodiment comprises at least one network tap 6 and management equipment 1 .
  • the network tap 6 is connected to the fiber (transmission line) between the two network devices 4 and 5, and the network tap 6 physically duplicates the video stream.
  • the network tap 6 is a device that branches and extracts video packets flowing on the network.
  • the network tap 6 physically duplicates the video packets obtained by packetizing the uncompressed video stream, generates mirror packets, and transmits the mirror packets to the branch destination management device 1 .
  • the illustrated network tap 6 is installed on the fiber between the relay device 2B and the network device 5.
  • the network tap 6 physically duplicates the video packet output from the relay device 2B and transmits it to the management device 1 .
  • the management device 1B of this embodiment has a reception port 11, a processing section 30, a display section 13, and a port control section .
  • the managed device 1B differs from the second embodiment shown in FIG. 2 in that it includes a port control unit 14 .
  • the video packets received by the management device 1B are packets that have not been filtered. Perform filtering.
  • the port control unit 14 sends a control signal to the receiving port 11 according to a predetermined filtering method, causes the receiving port 11 to discard or receive the video packet, and performs filtering.
  • the port control unit 14 sends a control signal to each reception port 11, and sequentially switches the reception port 11 for receiving video packets, thereby performing time-division filtering. may be performed.
  • the port control unit 14 uses the header information (sequence number, arrival order of incoming packets, etc.) set in the RTP header of the received video packet for each receiving port 11 to determine which video packet to discard and which packet to receive. You may select
  • header information sequence number, arrival order of incoming packets, etc.
  • the receiving port 11 outputs the filtered packet to the processing unit 30 .
  • the processing unit 30 generates a thumbnail image or a low-resolution video from the filtered video packets, as in the first embodiment.
  • the display unit 13 displays the generated thumbnail image or low-resolution video.
  • the relay device 2B of this embodiment includes a reception port 21 and a transmission port 23, and relays video packets of the uncompressed video stream received from the network device 4 to the network device 5.
  • FIG. 5 is a system configuration diagram showing a configuration example of a transmission system according to the fourth embodiment.
  • the transmission system of this embodiment includes a management device 1C.
  • the management device 1C acquires network device information and stream information from an NMOS (Networked Media Open Specifications) RDS (Registration & Discovery System) server 8, and acquires the multicast address of a desired multicast terminal 9 from the device information. Then, the management device 1C uses the multicast address to transmit join to the multicast terminal 9 and participates in the multicast. As a result, the management device 1 ⁇ /b>C can acquire the same video stream (video packet) as the video stream (video packet) flowing from the multicast terminal 9 to the network device 5 .
  • NMOS Networked Media Open Specifications
  • RDS Registration & Discovery System
  • the illustrated management device 1C has a reception port 11, a processing unit 30, a display unit 13, a port control unit 14, another reception port 15, and a transmission port 16.
  • the managed device 1C differs from the managed device 1B of the third embodiment shown in FIG.
  • the other receiving port 15 acquires network device information (NMOS information) and stream information from the RDS server 8 .
  • the RDS server 8 is a server that detects and registers devices within the network.
  • the other receiving port 15 acquires the multicast address of the multicast terminal 9 that distributes the desired stream from this information, and sends the multicast address to the transmitting port 16 .
  • the sending port 16 sends a join to the multicast terminal 9 using the multicast address. Thereby, the multicast terminal 9 transmits the same video stream (video packet) as the video stream (video packet) transmitted to the network device 5 or the like to the management device 1C.
  • the reception port 11 of the management device 1C receives video packets transmitted by the multicast terminal 9.
  • the reception port 11 filters packets under the control of the port control unit 14 and outputs the filtered packets to the processing unit 30, as in the third embodiment.
  • the processing unit 30 generates a thumbnail image or a low-resolution video from the filtered video packets, as in the first embodiment.
  • the display unit 13 displays the generated thumbnail image or low-resolution video.
  • the transmission systems of the first to fourth embodiments described above include a duplicating unit 22 that duplicates a plurality of packets obtained by packetizing an uncompressed video stream, filters 24 and 11 that filter the duplicated packets, and filtering a generator 32 for generating thumbnail images or low-resolution video from subsequent packets.
  • the replicator may replicate the video packets using at least one of mirroring within the transmission system, physical replication using network taps 6, and multicast participation.
  • filtering reduces the number of video packets, generates thumbnail images or low-resolution images from the reduced video packets, and transmits them to the management device 1 (maintenance base).
  • the management device 1 maintenance base
  • a general-purpose computer system as shown in FIG. 6 can be used.
  • the illustrated computer system includes a CPU (Central Processing Unit, processor) 901, a memory 902, a storage 903 (HDD: Hard Disk Drive, SSD: Solid State Drive), a communication device 904, an input device 905, and an output device. 906.
  • Memory 902 and storage 903 are storage devices.
  • CPU 901 executes a predetermined program loaded on memory 902 to realize each function of each device.
  • each function of the management devices 1, 1A, 1B, 1C and relay devices 2, 2A is executed by the CPU of the management device in the case of the program for the management device, and by the CPU of the relay device in the case of the program for the relay device. It is realized by executing each.
  • management device and the relay device may be implemented by one computer or may be implemented by multiple computers. Also, the management device and the relay device may be virtual machines implemented in computers. Programs for management devices and relay devices can also be stored on computer-readable recording media such as HDDs, SSDs, USB (Universal Serial Bus) memories, CDs (Compact Discs), and DVDs (Digital Versatile Discs). , can also be distributed over a network.
  • computer-readable recording media such as HDDs, SSDs, USB (Universal Serial Bus) memories, CDs (Compact Discs), and DVDs (Digital Versatile Discs).

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
PCT/JP2021/021912 2021-06-09 2021-06-09 伝送システム、伝送方法、および、伝送プログラム Ceased WO2022259419A1 (ja)

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US18/568,350 US20240275837A1 (en) 2021-06-09 2021-06-09 Transmission system, transmission method and transmission program
JP2023526724A JPWO2022259419A1 (https=) 2021-06-09 2021-06-09
PCT/JP2021/021912 WO2022259419A1 (ja) 2021-06-09 2021-06-09 伝送システム、伝送方法、および、伝送プログラム

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7648068B1 (ja) * 2024-08-07 2025-03-18 株式会社アンバーサイン ＭｏＩＰ制御装置、およびプログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019022172A (ja) * 2017-07-21 2019-02-07 日本放送協会 映像／パケット変換装置、パケット／映像変換装置及びプログラム
JP2020078057A (ja) * 2018-11-09 2020-05-21 日本放送協会 パケットフロー監視装置、パケットデータ抽出装置、抽出データ集計装置、及びプログラム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805762A (en) * 1993-01-13 1998-09-08 Hitachi America, Ltd. Video recording device compatible transmitter
US7908627B2 (en) * 2005-06-22 2011-03-15 At&T Intellectual Property I, L.P. System and method to provide a unified video signal for diverse receiving platforms
US20090010193A1 (en) * 2007-07-06 2009-01-08 Santosh Kolenchery System and method of multicasting multimedia streams
EP2200220A1 (en) * 2008-12-22 2010-06-23 Thomson Licensing Method and apparatus for reliable multicast streaming
GB201316575D0 (en) * 2013-09-18 2013-10-30 Hellosoft Inc Voice data transmission with adaptive redundancy
EP3077985B1 (en) * 2013-12-04 2020-05-27 Urthecast Corp. Systems and methods for processing distributing earth observation images
US9729583B1 (en) * 2016-06-10 2017-08-08 OneTrust, LLC Data processing systems and methods for performing privacy assessments and monitoring of new versions of computer code for privacy compliance
US11025675B2 (en) * 2016-06-10 2021-06-01 OneTrust, LLC Data processing systems and methods for performing privacy assessments and monitoring of new versions of computer code for privacy compliance
US9972360B2 (en) * 2016-08-30 2018-05-15 Oath Inc. Computerized system and method for automatically generating high-quality digital content thumbnails from digital video
US10887361B2 (en) * 2016-11-01 2021-01-05 Nicira, Inc. Port mirroring in overlay networks
KR102415156B1 (ko) * 2018-04-11 2022-06-29 삼성에스디에스 주식회사 Qos 관리 방법 및 이를 수행하기 위한 수신 장치
JP7255116B2 (ja) * 2018-09-25 2023-04-11 富士フイルムビジネスイノベーション株式会社 情報処理システム、端末装置およびプログラム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019022172A (ja) * 2017-07-21 2019-02-07 日本放送協会 映像／パケット変換装置、パケット／映像変換装置及びプログラム
JP2020078057A (ja) * 2018-11-09 2020-05-21 日本放送協会 パケットフロー監視装置、パケットデータ抽出装置、抽出データ集計装置、及びプログラム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7648068B1 (ja) * 2024-08-07 2025-03-18 株式会社アンバーサイン ＭｏＩＰ制御装置、およびプログラム

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