EP2569673A1 - Système de présentation holographique en direct et procédé de transmission en direct d'une présentation holographique - Google Patents

Système de présentation holographique en direct et procédé de transmission en direct d'une présentation holographique

Info

Publication number
EP2569673A1
EP2569673A1 EP11723337A EP11723337A EP2569673A1 EP 2569673 A1 EP2569673 A1 EP 2569673A1 EP 11723337 A EP11723337 A EP 11723337A EP 11723337 A EP11723337 A EP 11723337A EP 2569673 A1 EP2569673 A1 EP 2569673A1
Authority
EP
European Patent Office
Prior art keywords
unit
signal
conference room
holographic
presentation
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.)
Withdrawn
Application number
EP11723337A
Other languages
German (de)
English (en)
Inventor
Stephan Overkott
Till Schreier
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.)
OS BRAND SOLUTIONS GMBH
Original Assignee
OS BRAND SOLUTIONS GmbH
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 OS BRAND SOLUTIONS GmbH filed Critical OS BRAND SOLUTIONS GmbH
Publication of EP2569673A1 publication Critical patent/EP2569673A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H2001/0088—Adaptation of holography to specific applications for video-holography, i.e. integrating hologram acquisition, transmission and display

Definitions

  • the invention relates to a holographic live presentation system and a method for live transmission of a holographic presentation.
  • This principle is also used in the teleprompter and the head-up display.
  • Holographic projections attract the attention of the viewer to a great extent and are therefore suitable especially for marketing actions. Furthermore, life-size projections of people are possible who seem to present themselves on a stage to an audience, but are actually in a distant recording studio. Thus, for example, live presentations can be made by leaders of companies, without having to be physically present, which travel times are reduced to the arrival to the nearest studio.
  • live presentations can be made by leaders of companies, without having to be physically present, which travel times are reduced to the arrival to the nearest studio.
  • the illusion of holographic projection is so good that the viewer the projected person classifies at least ge ⁇ rochlich as present and can hardly escape in particular the effect of the body language of the person.
  • image-in-picture proj ections are effected by media, which are kept at the receiving station. If the person whose image is being transmitted wants to present graphics, photos or even videos, then this media in the receiving station must be superimposed by an operator with the holographic projection. The speaker thus has no direct impact on the off ⁇ choice of additional media, the start and stop of the presentation of the media and not to other parameters such as the lighting or the sound in the auditorium. Unlike a presentation on the ground, where the presenter can control the selection and presentation time of prepared charts, he has to rely on interaction with an operator in the known system.
  • Object of the present invention is therefore to improve a HO lografisches live presentation system of the type mentioned so that by for trouble-free transmission ⁇ the illusion for the viewer of a seemingly three-dimensional picture can be perfected.
  • the system according to the invention is based on the fact that a plurality of high-bandwidth, redundant data transmission paths are provided between a transmitting station and a receiving station, on which the transmitting station simultaneously transmits the encrypted transmission signal.
  • the transmit signal is a video coded or combined audio / video signal encoded according to a conventional CODEC. It may also be provided with other system specific parameters e.g. For remote control additional functions are added.
  • the data paths are monitored by the network controller, which at least in each transmitting station, so when recording ⁇ studio, and at the receiving station, wherein the conference room unit, once each are present and which are interconnected via a further data connection.
  • the data connection is made via broadband connections, in particular via fiber optic networks.
  • To transmit a high-definition video stream is a bandwidth of 100 Mbit / s desirable and of at least 20 Mbit / s he ⁇ conducive.
  • the transmission signal is according to the invention not just sent, but it will ge ⁇ create a feedback loop, so can be re gistriert in a network control unit ⁇ whether and at what delay or quality the digital transmission signal his receiver he ⁇ reaches.
  • This loop can in various ways be directed ⁇ be:
  • the transmitter-side network controller registers the data packets that are applied to the remote data transmission lines and announces in a test signal these data packets simultaneously to the network control unit, using a control line with a lower bandwidth can be used.
  • the network control unit Of the data received in the receiving unit, only core information is also sent to the network control unit, so that running ⁇ time and data losses can be determined in the network control unit.
  • This feedback is advantageous in a remote network control unit, which is spatially neither in ei ⁇ nem recording studio nor in the conference room unit be ⁇ and therefore also needs to be connected to these units via remote data transmission lines.
  • the registration, announcement and verification of the data packets preferably takes place in the network controllers with such high frequency that the data packets are individually monitored, not just blocks of data packets.
  • the network controller takes over the data packets from the backup data line, provided that the error rate on this line is at least not higher than on the transmitter data line.
  • In the transmission mode can be provided that when registering errors a complete line switching is effected until the error rate on the main data line has dropped again.
  • the special advantages of the holographic presentation arise precisely when a person in the recording studio is projected into the conference room unit and there takes place an interaction with a person who is actually present.
  • cameras and microphones are vorgese ⁇ hen in the conference room unit which transmit an image from the stage and / or the audience back into the recording studio.
  • a transmission in the opposite direction and at the same time still with the conference room unit leading transmission of the high-resolution transmission signal for the holographic projection.
  • the presentation system according to the invention designed for a bidirectional broadcast what it then we ⁇ struts are each 1 network controller on each side. Communication can be made via 2 lines.
  • the advantage of the invention is that always the best and fastest line is automatically selected for the program and that no run time delays caused by complicated error correction algorithms. Especially in the dialogue between two persons, who may even speak, very little delay has to be achieved, so that the illusion of a live discussion can arise and the viewer is not easily aware that at least one of the actors he is sees, is not present at all.
  • holographic display system of the invention is that unlike traditional video projections is a third dimension as a design tool for Ver ⁇ addition. Even if the projected image is actually mirrored on the flat reflection medium, the spatial impression can be intensified by a deliberate influence of the image in an image com- ponent.
  • the size and brightness can be changed or superimposed with other real objects or people on the stage as well as with other projected images.
  • the spatial depth coordinate and priority may be fixed in advance in a particular set. If, for example, you want to present the lead singer of a band in front of his musicians, the largest spatial depth coordinate and the highest priority are set for the individual from the outset.
  • Appearing Background- also in a real recupersenta ⁇ tion in the background reduced singer and musicians are defined within the holographic presentation by definition smaller priority values and space depth coordinates so that they during the assembly of all the parts of the image in the holographic presentation in the usual from the real stage shows Way to appear in the background.
  • the spatial depth coordinate value can be used to simulate camera movements. As a result, little space and equipment expenditure is required in the recording studios, since no real camera movements take place in the depths of the room. Rather, by a continuous variation of the spatial depth coordinate over a certain period of time, the illusion can be caused that the camera is approaching the person or away from it.
  • FIG. 1 shows a live presentation system as a block diagram according to a first embodiment
  • FIG. 2 is a block diagram of a live presentation system according to a second embodiment
  • FIG. 3 shows a live presentation system as a block diagram according to a third embodiment
  • FIG. 4a, 4b a live presentation system as a block diagram according to a fourth embodiment with a first broadcast in various stages;
  • FIG. 5a-5c show a live presentation system as a block diagram according to a fourth embodiment with a second transmission in various stages.
  • FIG. 1 shows a holographic live presentation system in a first, simple embodiment, which comprises a recording studio unit 100 and a conference room unit 200.
  • a camera 110 angeord ⁇ net which receives an image of a person 101.
  • the taken video signal is a video encoder 106 leads ⁇ leads.
  • a compressed video signal is generated with the aid of conventional CODECS, which is supplied to a network controller 105.
  • An additional audio module with microphone 115 may paral ⁇ lel receive a tone for the image recording and the audio ⁇ signal also perform the video encoder 106, is able to encode an additional audio track or a combined video / - audio signal to code.
  • the encoded video signal is passed as a digital transmission signal via a data channel of a fernübertragungslei ⁇ device 301 to a network controller 205 in the conference room unit 200.
  • the received transmission signal is decrypted again in a video decoder 206. It is returned in a Videosig ⁇ nal or a combined video / - converted audio signal or into separate channels for video and audio, and then supplied to a projection unit 211 and a speaker 215th
  • a control signal via a control line 311 to an ex ⁇ ternal control unit 325 is given by the network controller 105th
  • the latter is again connected to ⁇ via a control line 312 to the network controller 205 in the conference room unit 200th
  • the data transmission is based on a packet-based data transmission according to the widespread TCP / IP Protocol.
  • a control signal for example, an on ⁇ notice of the next data packets is transmitted, while the actual data packet on the remote data ⁇ tragungs effet is sent three hundred and first
  • the indexes of the received packets are in turn transmitted to the external control unit 325.
  • the control unit 325 may thus be understood whether the data packet, the sending of the network controller 105 has previously announced, has been on the opposite side, the network ⁇ factory controller 205 of the conference room unit 200 are received, ⁇ gen.
  • the control unit 325 causes the network controller 105 on the transmission side to switch the transmitting data channel to a replacement data channel.
  • This may be an additional data channel within the same remote data transmission line 301. However, it may also be provided to select two completely separate transmission paths as a remote data transmission lines 301 ⁇ each having at least one data channel.
  • the non-received data packet is sent again and to repeat the transmission sequence starting with this data packet. In this manner it is achieved with a high probability that a nearly flawless Since ⁇ tenübertragung done with very little switchover delays that are imperceptible to the projection in the conference room unit.
  • the switching of the transmitting data channel can, as described above, take place at the moment in which a disturbance has been detected on the previously transmitting channel.
  • it can also be provided both data channels or all existing redundant lines simultaneously with the broadcast signal or a test signal to beaufschla ⁇ gen and the receiver side to provide several connected to the network controller receiving units corresponding to test the transmission quality of the redundant lines constantly and possibly a Switching already trigger when it turns out in the ongoing monitoring of the lines that in one of the Automaticlei ⁇ lines the latencies are shorter, even if the currently transmitting data channel with its latencies is still in the tolerance field. After the switchover of the transmitting data channel, the monitoring is continued on the freed ⁇ become data channel by sending a test signal.
  • Figure 2 shows another holographic live presentation system in which both the recording studio unit 100 ⁇ and the conference room unit 200 ⁇ are provided with further modules, whereas the basic functionality with the data channel monitoring and data channel switching described above works in the same way.
  • the video encoder 106 is followed by an encryption unit 102.
  • the video signal compressed with a CODEC is again encrypted with a private code, so that it is not possible without the knowledge of the code and the encryption algorithm to decrypt the transmitted signal and to extract the contained image information therefrom.
  • the thus encoded digital transmission signal is sent via the network controller 105 and the fernschreibtra ⁇ supply line 301 to the network controller 205 in the conference room unit 200 ⁇ , as already described in connexion ⁇ hang with the first embodiment of FIG.
  • the network controller 205 is followed by a decryption device 202, which decrypts the encrypted transmission signal on the basis of the private code and transfers it back into a conventional CODEC format.
  • the still compressed video ⁇ signal can then in the known manner on the video Decoder 206 are converted back into a video signal, which is then further processed within the conference room unit and / or can be fed directly to the projection device 211.
  • the retransmission of the video signals from the conference room unit to the control monitor 111 in the recording studio unit 100 can be made in the reverse direction via the same transmission paths.
  • the retransmission signal can also be provided to use the retransmission signal as a test signal and to occupy the spare spare data channel with it. Any transmission errors herein will only be perceived by the recorded person 101.
  • a further supplement in the embodiment according to FIG ur 2 is made by a remote control system 207.
  • a remote control system 207 an operator in the external control unit 325 or in the receiving unit 100 is added 'in the location, image, sound, and light presentation fernge ⁇ controls to influence.
  • the additional control instructions can be sent in the data stream of the transmission signal, so that this no separate control lines are required.
  • the remote control system 207 can be used such that illumination units 114 on the side of the recording studio interact with illumination units 214 in the conference room.
  • the illumination may be synchronized so that the illumination in the recording studio is with darkening of the light in the audience simultaneously turned 100 ', so that as the image 201 appear on ⁇ taken person 101 on the Refletechnischsein- direction 212th
  • FIG. 1 A still further developed holographic live presentation system is shown in FIG.
  • a presentation server 240 at ⁇ ordered is, on the part of conference space unit 200, a presentation server 240 at ⁇ ordered. This is a presentation data line 331 with a presentation PC 140, which is in the recording studio unit 100.
  • the presentation PC 140 is connected to the remote control system 107 and above with a video switch 108.
  • a video switch 108 About the video switch 108, referring to the presentation PC multi ⁇ media presentation can be shown on the monitor 111th
  • control commands such as selecting a presenta ⁇ tion on the presentation PC 140 and the Steuerungsbewe ⁇ movements while navigating within the presentation of the presentation data line 331 to the recupersentati- onsserver 240 "enedtra ⁇ gen in the conference studio unit 200th
  • a prepared presentation is thus loaded on both computers 140, 240 prior to the beginning of the transfer.
  • even large amounts of data can be moved, because a real-time transmission is not necessary and even small bandwidths for the presentation data lines 331 are sufficient if the timing is advanced .
  • the output video signal of the presentation server 240 is sent to an image composer 230. Is in these also the video signal up ⁇ on, which is obtained alsgangsseit ⁇ Lich from the video decoder 206th
  • a video signal is still present an external teleconferencing system 340 switched.
  • These are solutions with small studios with a few conference centers in each of which a number of interlocutors is taken on camera while looking at monitors, which maps the other Ge ⁇ interlocutors in a remote studio.
  • a simple video image of an external teleconferencing system 340 could thus also be presented on the stage 220 and vice versa.
  • Fig. 4a shows yet another holographic live presentation system. This in turn comprises a conference room unit 200, which is connected to two recording studio units 100, 400. All units are shown greatly simplified compared to Figures 1 to 3 here.
  • each recording studio 100, 400 and the conference room unit 200 direct connections, between the network controller 105 or 405 with the network controller 205 of the conference room unit 200th
  • the center to ⁇ acceptance image is shown from the recording studio 100 on a monitor 321st This can be transmitted in lower resolution, as it is only for control purposes. Accordingly, it is possible to transmit directly via the control line 311 with only a small bandwidth.
  • the image of the stage camera 216 (see Fig. 3) is transmitted to a monitor 322 in the control center 300 via the control line 312.
  • the recording picture of the second recording studio 400 appears on a monitor 323.
  • a applicatio ⁇ transmitter in the direction Center 320 cinematographer via the additionally present in the units 100, 200, 400 Remote control devices intervene. He can control image, light and sound and also cause a picture mix.
  • Fig. 4a is shown by way of example, as on bueh ⁇ ne 212 in the conference room unit 200, the images of two people 101, 401, together arge.
  • a digital spatial depth coordinate value and / or a priority value is also transmitted together with the digital transmission signals.
  • the values can have been encoded into the transmission signal and are then read out correspondingly on the receiver side.
  • a program with two recording studios 100, 400 shows in a very schematic way the Fig. 4a.
  • the Vi ⁇ deosignale of the cameras 110 is processed 410 through the not shown here in detail ⁇ intermediate units and transmitted via remote data transmission lines 301, 302 to the conference studio.
  • the person from the first recording studio 100 was assigned a normal priority value.
  • the person 401 in the second recording studio is also filmed and the signal is also transmitted to the conference studio.
  • the image signal is a priority "null" respectively associated with a non-visible image portion.
  • the transmission signal is indeed continuously and can be fed scarf ⁇ tet any time when the image director decides to do so.
  • the person remains 401 invisible from the second recording studio 400.
  • Fig. 4b shows the same system arrangement as Fig. 4a. Meanwhile, however, the received second-person video signal 401 has also received a corresponding priority to be displayed on the stage 212. It seems that both persons 101, 401 appear side by side on a stage, but are actually in remote recording studios 100, 400.
  • Figs. 5a and 5b show a similar structure.
  • a single person 101 is ge ⁇ filmed in the recording studio 100 and the video signal is transmitted to the conference room unit 200 ⁇ .
  • control images are transmitted to an image control center 320. While the images of the person 101 and the group of persons 401 place in the second receiving ⁇ studio in full body size is Alloc ⁇ voltage of a corresponding space depth coordinate value of the Illusion of a different positioning generated in the depth of the room.
  • the individual 101 has received a higher priority value on the left. If it moves in the picture from left to right, it enters the group 403 of the persons apparently standing in the background, as shown in FIG. 5b.
  • FIG. 5c shows a section of a program in which the image 201 of the individual 101 as well as the image 203 of the woman from the group of persons have the same spatial depth coordinate values , so that they are both projected in natural size and seemingly on the same Height standing on the stage.
  • the image 203 of the group of people 401 has a higher priority value and is therefore placed over the image 201 in the image composer.
  • the group 203 is apparently the front and covers the seemingly behind it A ⁇ zelperson two hundred and first

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un système de présentation holographique en direct qui comprend : une unité d'enregistrement en studio (100) comprenant une caméra (110) et un codeur vidéo (106) pour la production d'un signal numérique à partir du signal de la caméra (110), et au moins une unité de salle de conférence (200) équipée d'au moins un décodeur vidéo (206) pour la conversion du signal d'émission numérique en un signal d'émission utilisable par un dispositif de projection (210), et d'un dispositif de projection holographique (210), lequel comprend au moins un projecteur d'image (211) et un milieu de réflexion (212) transparent, disposé dans l'unité de conférence (200; 200'; 200"), obliquement par rapport au plan d'observation d'un spectateur. Dans l'unité d'enregistrement en studio (100, 400) se trouve un contrôleur de réseau (105) servant à émettre et/ou à capter le signal d'émission numérique par l'intermédiaire d'une ligne externe de télétransmission des données (301, 303). Dans l'unité de conférence (200) est disposé un contrôleur de réseau (205) servant à capter et/ou à émettre les signaux d'émission numériques par l'intermédiaire de la ligne externe de télétransmission des données (301, 303). Pour cela, il y a au moins deux canaux de données, soit ensemble dans une même ligne, soit dans un faisceau comprenant plusieurs lignes. Les contrôleurs de réseau (105, 205) sont reliés ensemble et en plus à une unité de commande de réseau (325) par l'intermédiaire d'au moins une ligne de commande (302, 303). Pour chaque contrôleur de réseau (105, 205), une unité de commutation actionnable par l'intermédiaire de l'unité de commande de réseau (325) permet la commutation entre les canaux de données.
EP11723337A 2010-05-11 2011-05-11 Système de présentation holographique en direct et procédé de transmission en direct d'une présentation holographique Withdrawn EP2569673A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010028865A DE102010028865A1 (de) 2010-05-11 2010-05-11 Holografisches Live-Präsentationssystem und Verfahren zur Liveübertragung einer holografischen Präsentation
PCT/EP2011/057650 WO2011141529A1 (fr) 2010-05-11 2011-05-11 Système de présentation holographique en direct et procédé de transmission en direct d'une présentation holographique

Publications (1)

Publication Number Publication Date
EP2569673A1 true EP2569673A1 (fr) 2013-03-20

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EP11723337A Withdrawn EP2569673A1 (fr) 2010-05-11 2011-05-11 Système de présentation holographique en direct et procédé de transmission en direct d'une présentation holographique

Country Status (3)

Country Link
EP (1) EP2569673A1 (fr)
DE (1) DE102010028865A1 (fr)
WO (1) WO2011141529A1 (fr)

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CN113965718A (zh) * 2021-11-10 2022-01-21 上海锋沛数码科技有限公司 全息影像视频会议系统

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DE102019208316A1 (de) 2019-06-07 2020-12-10 Audi Ag Verfahren zum Betreiben eines Videokonferenzsystems sowie Videokonferenzsystem und Kraftfahrzeug
CN113259602B (zh) * 2021-06-15 2021-11-05 大爱全息(北京)科技有限公司 一种互动全息视频的调度方法和系统
CN113315885B (zh) * 2021-06-15 2023-04-07 大爱全息(北京)科技有限公司 一种用于远程互动的全息演播室及系统

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CN113965718A (zh) * 2021-11-10 2022-01-21 上海锋沛数码科技有限公司 全息影像视频会议系统

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WO2011141529A1 (fr) 2011-11-17

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