WO2019145534A1

WO2019145534A1 - Virtual reality conference system

Info

Publication number: WO2019145534A1
Application number: PCT/EP2019/051999
Authority: WO
Inventors: Florian VAN DE CAMP; Adrian HOPPE
Original assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.; Karlsruher Institut für Technologie
Priority date: 2018-01-29
Filing date: 2019-01-28
Publication date: 2019-08-01
Also published as: DE102018201336A1

Abstract

The invention relates to a VR conference system which can be used for more effective collaboration. The invention does not attempt to produce a virtual world, i.e. a collaboration between the participants, which is as real as possible. Instead, in addition to the avatar of a participant, a common object is displayed to the other participant's point of view in such a manner that both participants do not see a common identical scene in which the participants are virtually located. Rather, the object is visible to both participants from the same perspective or from similar perspectives, such as from a front view or the like for example.

Description

Virtual Reality conference system

description

The present invention relates to a VR conferencing system.

Virtual Reality (VR) applications are becoming increasingly popular. Head-mounted displays (HMD) displays with integrated inertial sensors for detecting the head movement of the user with associated hand devices for interacting with the virtual world are becoming increasingly cost-effective and, in principle, such systems are able to hold virtual conferences in which the Participants can sit in very different places.

A problem that occurs in the real world as well as in the virtual world is the different perspective on a common object when the participants in discussion are arranged around the object. Fig. 8 shows example, a problem that arises in the cooperation of several people in this way. Fig. 8 shows two persons 10 and 12 sitting together on a table 14, on opposite sides of the table, and both see on the table the same contents 16, the one, namely the person 12, right around, and the others, the person 10, standing upside down. Not all persons thus see the displayed information or objects 16 from the same perspective and, above all, not from the favorable perspective, from which, for example, the font of the content 16 can be read. This requires rethinking of most people involved, such as: For example, employees of a company provoke mistakes. Another example of such a problem would be that, for example, several people are standing around a map. Few of the people involved could see this card genuinely. Most people then need to look at the map from a rotated perspective, as well as the person 10 in the example of FIG. 8, who must even view the content 16 upside down.

There are already remote collaboration solutions that have specific requirements. Such examples are from the telephone or video conferencing area. For example, Matsukage et al. [1] a collaborative system connecting two physically remote users through a videoconference. In addition to the video image of the other user, his pointing gestures are also transmitted to objects that are on the table in front of the respective monitor. For this purpose, the hand of the user is detected with a camera on the screen edge and then a section of the hand by means of a projector on the desk of the other Benut zers mapped. The projection of the hand is done according to the position of the object, which means that the objects on the desks of the two users need not be the same. Higuchi et al. [2] present a system where two physically remote users can collaborate on a digital whiteboard. The system consists of a large touchscreen monitor and a camera. The camera captures the users and their shape is then displayed to the other user on the monitor. Targeted transformation of the camera image preserves the eye and gesture direction and the intention of the user.

However, videoconferencing systems or whiteboard systems are problematic because, for example, scaling with the number of participants is difficult, proprietary, infrequent utensils such As whiteboards or projectors are needed, or the user must abide by certain rules of conduct, so as not to obtain the concordance on all participating participant pages.

The object of the present invention is to create a VR conference system which enables a more effective cooperation of the participating conference participants.

This object is solved by the subject matter of the independent patent claims.

It is a core idea of the present invention that a VR conferencing system can be used for more effective collaboration, if the usual attempt to reconstruct a virtual world, in this case the cooperation of the participants, as realistically as possible, is used. Rather, it is favorable if, in a second view, the second object is displayed in its virtual view in addition to the first participant's avatar in a manner in which the object differs from the second viewpoint in this virtual view Referenzpositi on, such as relative to the same rotational offset, translational offset and / or scaled, where the object in the virtual view of this second participant for the avatar of the first participant as in the first virtual point of view, that is, if the Both participants just do not see a common same scene in which the participants are virtually. Rather, the object can look for both participants be the same or similar perspective visible, such as from a front view or the like, although in the virtual view, the avatar of the other party is located elsewhere, ie, for example, sitting on a common virtual conference table on another page or the like. Such a system is then arbitrarily scalable in terms of the number of participants and can also be configured so that each participant can set the session with respect to the arrangement of each other participants relative to himself freely according to his preferences. It has now been recognized, in particular, that such a system need not suffer from the fact that the participants could not interact with each other by pointing gestures due to the non-conformity of the perceived conference scene. Rather, pointing gesture information of the first party is used to determine a relative location of a point on, on, or in the object, and for that point - the highlight point - a pointing gesture on and / or highlighting it is added to the virtual view of the site second participant. The system takes into account the fact that the conference participants see different scenes of participants and objects. In this way, for example, it is possible for a pointer, which is made by the first participant by means of a hand-held pointing device and / or its viewing direction with respect to the object in its own virtual view, to one or more corresponding gestures of the avatar of the first one Participant in the virtual view of the second participant. Thus, while the first participant is pointing or looking at a pointing point in his own virtual view, the avatar of the first participant is pointing and / or looking at the corresponding highlighting point in the virtual view of the second participant. In the virtual view of the second participant, ie the point with the same relative position to the object.

Advantageous embodiments are against the dependent claims. Preferred embodiments of the present invention will be explained in more detail below with reference to the figures, in which:

Fig. 1 shows a schematic representation of a VR conference system according to an exemplary embodiment;

Fig. 2 shows schematic tasks performed by the VR conferencing system to illustrate the interaction with the object for all participants in a personal perspective; Fig. 3 schematically illustrates how a pointing gesture information of a subscriber is detected and converted in a pointing position for a pointing position;

FIG. 4 shows schematically for a subscriber how the other participants as an avatar are also shown in the view of one subscriber; FIG.

Figure 5 shows schematically a resulting virtual view of a conference attendee, showing the object in it, and an avatar pointing to a highlight point corresponding to the point of view pointed to by the participant represented by the avatar;

Fig. 6 is a schematic plan view of a virtual two-party conference system;

FIG. 7 is a schematic plan view of a virtual two-way communication system in which the avatar of one subscriber is adapted to the virtual world of the other subscriber; FIG. and

Fig. 8 is a schematic plan view of a real opposite two participants at a common table.

1 shows an exemplary embodiment of a VR conference system according to an exemplary embodiment. In particular, the VR conferencing system 20 of FIG. 1 includes a processor 22 that is communicatively coupled to VR devices 26-26 ₂ by a plurality of subscribers via a network 24, such as the Internet, the index of reference numerals being between different subscribers To differentiate participants. The number of participants is two in the description of most embodiments in the present application, but as indicated by dashed lines in Fig. 1, an increase in the number is readily possible. In the VR devices 26 ^ 26 _{2 of} the participants may be a combination of VR glasses 28 with one or more hand-pointing devices 30, as is symbolized in Fig. 1. The display function could be taken over by the use of an HMD (Head- ounted Display), such as a video goggles, a helmet display or VR helmet, also from a head-up display. Portions of the functionalities described below with respect to the processor 22 may also be swapped out on a processor in the VR device 26. The VR glasses 28 include, for example, the functionality of inserting a virtual image into the eyes of the user, namely the virtual view of the respective participant, as described below. will be described later. The hand-pointing device 30 and optionally also the VR glasses 28 are equipped with inertial sensors, in order, for example, in the case of the hand-held device 30 to be able to determine the relative position thereof to the VR glasses 28 or to determine at least one spatial orientation of the hand-pointing device 30 to Kings. Similarly, the VR goggles 28 may be equipped with inertial sensors to detect the head alignment. Alternatively or additionally, cameras or light-house technology or deep-camera-based "inside-out tracking" can be used to detect head movement. Furthermore, as an alternative or in addition to the overlay function, the VR glasses can have an eye tracker in order to determine an instantaneous line of sight of the respective participant. Instead of a hand-pointing device, gesture recognition via a camera could also be used. As already mentioned, each VR device 26 is connectable to the processor 22 via a communicative link 32, and for each of the participants, so that the VR conferencing system 20 is capable of having remote participants in one attend a virtual conference session. The details are described below.

With reference to FIG. 1, it should also be mentioned that it would also be possible for the processor tasks described below to be partially transferred from the processor 22 shown in FIG. 1, which acts quasi as a server, into the VR devices 26, 26 ₂ and, respectively outsourced in this Pro processors, or even the entire functionality. In the latter case, the participants in Fig. 1 would be via the network 24, such. As the Internet, connected without a separate processor 22 would be necessary. Additionally, it should be noted that the VR devices may be part of the system 20 or may be external system compatible components that interact with corresponding interfaces of the system 20.

Fig. 2 shows schematically the VR devices 26, and 26 _{2 of} two participating conference participants, where, as already mentioned, the number is not limited to two. The processor tasks of the conference system 20 now include, in particular, presenting each participant with a respective virtual view. The presentation 32, the participant with the VR device 26, opposite and the presentation 32 ₂ facing the participant with the VR device 26 ₂ are provided with different indexes to indicate that the virtual views are different. As will be clear from the description below, the scenes are also different. The result of the presentations 32, ₂ may be, for example, in a still picture or a video. Sel biges is then in the respective VR device 26, or. 26 ₂ is displayed. The presentations 32 _{1 2} include in particular the projection of an object 34, which is the same for all conference participants and quasi forms the subject of the conference session, from egg nem subscriber-specific coordinate system 36 _! or 36 ₂ in the respective view of the participant. The object 34 is a virtual object, ie, a model, an image, a vector graphic, a text, or the like. In Figure 2, the object 34 is exemplified as a document which is angeord net in the coordinate system 36-i and in the coordinate system 36 _{2 of} the other participant. For each participant, the projection depends 32 _! or 32 ₂ of the subscriber's own Koordinatensys system 36i and 36 ₂ in the own view, for example, from the head position of the respective participant from. As it is already indicated in Fig. 2, and as it will become more apparent from the fol lowing description, the object 34 in both coordinate systems 36i and 36 ₂ arranged so that the respective projection 32i or 32 ₂ causes that both participants see the object 34 from the same or approximately the same perspective.

Another processor task of the VR conferencing system 20 is to obtain from the subscribers pointing gesture information related to the object. FIG. 3 shows, for example, a subscriber 38i who carries the VR device 26i or, in this case, the VR glasses 28 and virtually looks at the object 34 over it. In addition, the participant 38i points to a pointing point 40, which here exemplarily lies on the object 34, but positions 40 in a three-dimensional object would also be possible, or positions close to the object 34. FIG. 3 indicates that the Subscriber 38i performs pointing to the pointing point 40 by means of the hand pointing device 30, but as already mentioned, such pointing gesture information could also be obtained from a head alignment or a viewing direction of the eyes of the participant 38i. The obtained Zeigegestein formation of sensor data of the VR device 26i is then used by the VR conference system 20 to locate from the same point 40 relative to the object 34, ie its relative position to the object 34 such. B. its position within the document sheet or the like. For this purpose, the VR conference system determines, for example, from the pointer gesture information of the subscriber 38i a pointer straight in the subscriber's own coordinate system 36i, wherein the line is indicated in Fig. 3 with a dashed line 42, and determines an intersection of this line 42 with the ob jekt 34 or the intersection of the line 42 with a virtual plane on which the ob jekt 34, for example, such. B. the level of a virtual conference table. In this way, the videoconferencing system obtains the pointing location of the pointing point 40 in the subscriber's own coordinate system 36i. Another processor task of the conference The system 20 now consists of mapping the point of the indexing point 40 into the second coordinate system 36 ₂ using a transformation provided for this purpose, the reference numeral 44 _{12 being} used for this transformation in FIG. 2 in order to indicate with the indices that this point Transformation for images from the coordinate system 36 _t to the coordinate system 36 _{2 is} provided. It should be remembered that the number of participants may be larger, so that at N subscribers N (N-1) transformations of this kind may exist. By way of example, FIG. 2 also shows, for example, the transformation 44 ₂₁ that would be used by the VR conferencing system to map a corresponding pointing location of a pointing point from the coordinate system 36 ₂ into the coordinate system 36 _T. The transformation 44 _{12 is} determined to be the object 34 in the coordinate system 36 _! onto the object 34 in the coordinate system 36 ₂ .

In Fig. 2, the pixel of the display point 40 in the second coordinate system 36 ₂ is indicated at 45. This point 45 is the one which is to be used by the participants of the conference 38 _! is to be displayed, ie that of the VR device 26 ₂ in the case of Fig. 2. This process can ge in different ways, as will be discussed in more detail below.

However, before _discussing other details, it should be noted that the transformations 44 _Ί2 and 44 _{2i may be} purely translational and / or rotational transformations, ie, the objects 34 may be congruent, but it is also possible that the transformations 44 ₁₂ and 44 _2I additionally but also, for example, could have an isotropic or else anistropic scaling.

Before discussing the further tasks of the VR conference system 20, it should also be pointed out that in the description of FIG. 2 above, although only the transmission of pointer gesture information from a subscriber, namely the first subscriber on the left, to that of the second participant on the right hand side, but the VR conferencing system, of course, performs this task for all participants, d. H. transmit their pointing gesture information in the views of the other participants.

Another processor task of VR conferencing system 20 will now be described with reference to FIG. 4. The processor task, which is described in an exemplary manner with reference to FIG. 4 for the user of the VR device 26 ₂ , is the Display of the avatar of the one or more other participants in the view of the respective participant, here the participant 26 ₂ . The presentation 32 _{2 of} the virtual view for this participant comprises, in addition to the representation of the object 34, the at least partial representation of the avatar 46 of the other participant, in this case the participant 38. "Partial" refers to the fact that, for example, only the face and Arms of the avatar are simulated or synthesized. According to one embodiment, the VR conferencing system allows each participant to place the avatars themselves around the object 34 in their respective virtual views. He can virtually "place" them around a virtual conference table. Possibly. He can even make other avatar settings, such as adjusting their appearance. The system 20 could also rely on personal data of the participants to define their avatars in the views of the other participants. In FIG. 4, for example, it is indicated that the avatar of the subscriber 38 _! has been placed to the right of the second party with the VR device 26 ₂ and therefore can be seen on the right in the virtual view of the second party. The avatar 46 is, for example, a model of a person who is superimposed on the projection 32 ₂ in the view.

5 shows by way of example a view as it is superimposed on the view of the participant of the VR device 26 ₂ . The view shown in Fig. 5 48 ₂ shows the avatar 46 on the right side, with the object 34 lying in front of it. The object 34 is advantageously aligned with the eye point of the participant of the VR device 26 ₂ , such as, for example, that any writing on the object 34 is not upside down, as is ver anschaulicht in Fig. 5, or a possible front of the viewer is facing, or a map, for example, appears to have been ordered.

Another object of the VR conference system is illustrated with reference to FIG. 5 who the. In particular, FIG. 5 shows the highlighting point 45 in the view 48 _2. It may be blinking, eigged, or otherwise identified by the VR conference system in the view 48 ₂ , optionally additionally provided with information in the view 48 ₂ , through which Participants, here 38 _! , this point was highlighted. Additionally or alternatively, the VR conferencing system parameterizes avatar 46 model parameters according to the location of the point 45. For example, the VR conferencing system has the avatar 46 pointed to the 45 position with the hand or finger 50. Additionally or alternatively, the VR conferencing system may overlay a pointing line from the avatar's hand or finder to point 45 in the view. Additionally or alternatively, the VR conferencing system may parameterize the avatar 46 with respect to its header alignment, that the view of the avatar 46 is aligned to the point 45, so that gives the participants with this view, a harmonious impression in which the pointing avatar also looks at the point on which he also shows in the scene. Of course, other possibilities also exist. The appropriate parameterization of the avatar 46 of that participant, from whose pointing position 40 the highlighting point 45 has been determined, naturally allows the observer of the view 48 ₂ to recognize which conference participant is responsible for the pointing gesture. An additional audio discussion among the participants of the conference can thus be conducted without any problems.

In implementing the VR conferencing system described above, it may be advantageous if the eyepoints 52 of the one or more avatars are placed in the view of a respective participant to be disposed about a common axis of rotation 54. Such is shown by way of example in FIG. 5. In this way, for example, the transformation 44 of Fig. 2 could be limited to a rotation about this axis 54, which could in this case, for example, the vertical axis of the z z own coordinate systems 36, together.

The above exemplary embodiments thus solve the problem presented in the introduction to the description of the effective cooperation of conference participants by a manipulated manipulation of virtual worlds. The contents, such as 34, can be displayed to each participant in the same, for example in some optimal, per spectroscopic way. So it could be achieved that with these execution examples two participants, as shown in Fig. 6, have a two-party with each other, each participant 36 _n and 36 ₂ a personal, virtual world is displayed, in which the contents 34 for both participants are shown optimally. Both sit at a conference table 55 opposite each other, but everyone sees in his view, the object 34 from an optimal perspective, namely 34 'for the subscriber 36 _T and 34 "for the participants 36 participants. ₂ For both, in the example of FIG. 6, the font is correct or readable. In order to enable cooperation despite these different worlds, all interactions, such as pointing direction and viewing direction, can be transformed between the worlds, so that a harmonious behavior is created for all participants. This is shown in example in Fig. 7. The participant 36 ₂ points with his right arm in his view or world on the point of 40, wherein in the view for the participant 36-, the avatar of the participant 36 ₂ , namely 46 ₂ , on the point of view 40 in the view of the participant 36 ₂ corresponding highlighting point 45 in the view of the participant 36i shows, ie the arm 56 of the avatar 46 _{2 points} to this point 45. The adaptation of the User avatar 46 ₂ , as described above, by cutting the viewing direction and the forward direction of the hand with, for example, the table plane of the table 55. This has already been explained with reference to FIG. The corresponding intersections can then be transformed into the personal perspective of the other user.

The rotation of the user avatar may then be adjusted accordingly so that the gaze and the hands point in the direction of the respective transformed position 45, as illustrated with reference to FIG. The transformation of the contents may include a modification by translation, rotation or scaling. The modification made by the user 36 ₂ in the case of FIG. 6 into the personal perspective of the user 36 _! or the transformation 44 ₂₁ , could be described, for example, with the following formula:

where x _{m is} the resulting modified position in the world of user B, ie from user 36 _! , X, is the intersection 40 in the world of the user 36 ₂ , A, x _p is the pivot point at which the modification is to be performed, i.e. the center of the conference table 55. R _AB is a rotation matrix representing the object 34 from the user A transformed into the world by user B. For example, a rotation of the table contents by 180 ° can be performed here, but scaling is also possible. The axis of rotation is indicated in Fig. 5 at 54. S _AB is a vector which allows a shift of the contents. In the case of the rotated table surface, for example, no translation is carried out or the vector is 0. At least that would be a possibility. In the case of a non-zero vector for s _AB , the object 34 in the virtual view of the first participant and in the second virtual view 48 ₂ is arranged to be identical relative to the rotation axis 54, or at least would have a matching orientation to the axis 54.

The above embodiments thus enable collaboration of participants of a conference system in virtual reality. The above embodiments provide advantages in terms of time and error, which also overcomes limitations in the real world. The embodiments are also very well scalable in terms of the number of participants in the conference. Although the above embodiments are primarily based on 2D contents as the conference object 34, it is clear that the above embodiments Also examples of 3D content as the object 34 are applicable. The above embodiments provide, in particular, a high immersion / co-presence, so that the participants get the feeling that they really are facing the other participants. Finally, it should be noted that the modification or transformation in addition to a translation and rotation and scaling could also include other changes, in addition or alternatively, that could make the virtual worlds look completely different. The above embodiments thus allow conferences in virtual reality, which in reality might not be possible at all. Einsatzmöglichkei th for the above embodiments would not be limited in particular to work environments. Also in the games industry would be opportunities.

Although some aspects have been described in the context of a device, it should be understood that these aspects also constitute a description of the corresponding method, so that a block or device of a device is also to be understood as a corresponding method step or as a feature of a method step , Similarly, aspects described in connection with or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device. Some or all of the method steps may be performed by a hardware device (or using hardware - Apparatus), such as a microprocessor, a programmable computer or an electronic circuit can be performed. In some embodiments, some or more of the most important method steps may be performed by such an apparatus.

Depending on particular implementation requirements, embodiments of the invention may be implemented in hardware or in software. The implementation may be performed using a digital storage medium, such as a floppy disk, a DVD, a Blu-ray Disc, a CD, a ROM, a PROM, an EPROM, an EEPROM or FLASH memory, a hard disk, or other magnetics or optical memory are stored on the electronically read STEU ersignale that can sammenwirken with a programmable computer system to such or cooperating that the respective method is performed. Therefore, the digital storage medium can be computer readable.

Some embodiments according to the invention thus comprise a data carrier which has electronically readable control signals which are capable of being used with a pro- programmable computer system such that one of the methods described herein be performed.

In general, embodiments of the present invention may be implemented as a computer program product having a program code, wherein the program code is operable to perform one of the methods when the computer program product runs on a computer.

The program code can also be stored, for example, on a machine-readable carrier.

Other embodiments include the computer program for performing any of the methods described herein, wherein the computer program is stored on a machine-readable medium.

In other words, an embodiment of the method according to the invention is thus a computer program which has a program code for carrying out one of the methods described herein when the computer program runs on a computer.

A further exemplary embodiment of the method according to the invention is thus a data carrier (or a digital storage medium or a computer-readable medium) on which the computer program is recorded for performing one of the methods described herein. The data carrier, the digital storage medium or the computer-readable medium are typically representational and / or non-transient or not transient.

A further exemplary embodiment of the method according to the invention is thus a data stream or a sequence of signals which represents the computer program for performing one of the methods described herein. The data stream or the sequence of signals may be configured, for example, to be transferred via a data communication connection, for example via the Internet. Another embodiment includes a processing device, such as a computer or programmable logic device, configured or adapted to perform any of the methods described herein.

Another embodiment includes a computer on which the computer program is installed to perform one of the methods described herein.

Another embodiment according to the invention comprises a device or system adapted to transmit a computer program for performing at least one of the methods described herein to a receiver. The transmission can be done for example electronically or optically. The receiver may be, for example, a computer, a mobile device, a storage device or a similar device. For example, the device or system may include a file server for transmitting the computer program to the recipient.

In some embodiments, a programmable logic device (eg, a field programmable gate array, an FPGA) may be used to perform some or all of the functionality of the methods described herein. In some embodiments, a field programmable gate array may cooperate with a microprocessor to perform any of the methods described herein. In general, in some embodiments, the methods are performed by any hardware device. This may be a universal hardware such as a computer processor (CPU) or hardware specific to the process, such as an ASIC.

The devices described herein may be implemented, for example, using a hardware device, or using a computer, or using a combination of a hardware device and a computer.

The devices described herein, or any components of the devices described herein, may be implemented at least in part in hardware and / or in software (computer program).

The methods described herein may be implemented, for example, using a hardware device, or using a computer, or using a combination of a hard disk adapter and a computer. The methods described herein, or any components of the methods described herein, may be performed, at least in part, by hardware and / or by software.

The embodiments described above are merely illustrative of the principles of the present invention. It will be understood that modifications and variations of the arrangements and details described herein will be apparent to others of ordinary skill in the art. Therefore, it is intended that the invention be limited only by the scope of the appended claims and not by the specific details presented with the description and explanation of the embodiments herein.

references

[1] Ryo Matsukage, Daisuke Iwai, and Kosuke Sato, 2015. Consistent desktop sharing based on document coordinate System for face-to-face online meeting. In SIGGRAPH Asia 2015 Emerging Technologies. ACM, 6.

[2] Kelta Higuchi, Yinpeng Chen, Philip A Chou, Zhengyou Zhang, and Zicheng Liu, 2015. ImmerseBoard: Immersive telepresence experience using a digital white board in Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems. ACM, 2383-2392.

Claims

claims

1. Virtual Reality (VR) conference system, the VR conference system is confi riert to a first subscriber (38 _T) to present the VR conference system, a first virtual point of view, wherein the virtual point of view at least one object (34) shows; receive from the first user (38 _T ) pointer gesture information related to the object; to present a second virtual view (48 ₂ ) to a second participant of the VR conference system, wherein

in the second virtual view, an avatar (46) of the first participant is at least partially visible and the object (34) can be seen,

wherein the object (34) is staggered in the second virtual view relative to a reference position where the object in the second virtual view is for the first participant's avatar (46) as in the first virtual view; from the first gesture pointer information (38 _T ), to infer a relative location of a pointing point (40) on, in or near the object (34) relative to the object (34); and in the second virtual view (48 ₂ ), display a pointing gesture at, or highlighting from, a highlighting point (45) having the relative position relative to the object in the second virtual view.

2. VR conference system according to claim 1, wherein the VR conference system is con figured so that in the first virtual view, an avatar of the second participant is visible.

3. VR conference system according to claim 1 or 2, which is configured such that in the first virtual view, eye points (52) of the first participant and the avatar of the second participant and in the second virtual view, eye points of the second participant. ten participant and the avatar of the first participant around a common axis of rotation (54) are arranged around.

4. The VR conferencing system of claim 3, configured such that the object (34) in the first virtual view and in the second virtual view (48 ₂ ) is arranged the same or at least one coincident relative to the rotation axis (54). mende alignment with the same has.

5. VR conference system according to one of the claims, which is configured from the pointing information of the first subscriber _(·] 38) a Zeigeort of the pointing point (40) to determine in a first coordinate system _(36]), the Zeigeort using a mapping the transformation (44 ₁₂ ) associated with the second participant for the first participant into a second coordinate system (36 ₂ ) in order to obtain the highlighting point (45).

(44 ₁₂₎ a rotation about an axis of rotation (54) to summarizes 6. VR conference system according to claim 5, which is configured so that the second subscriber assigned for the first subscriber transformation with an angle of an angular displacement of the eye points of the second participant and the avatar of the first participant to the rotation axis (54) in the second virtual len view corresponds.

The VR conferencing system according to claim 5 or 6, wherein it is configured to extract a pointing straight line (42) in the first coordinate system (36 _] ) from the first-gesture pointer information (38 _] ) and an intersection of the pointing straight line (42) to determine the object (34) or a virtual plane on which the object resides as the pointing location, and to project the object (34) from the first coordinate system (36h) into the first virtual view.

The VR conferencing system of one of claims 5 to 7, wherein the VR conferencing system is configured to project the object (34) from the second coordinate system (36 ₂ ) into the second virtual view (48 ₂ ), wherein the Object (34) in the first and second Ko ordinatensystemen (36 _! , 36 ₂ ) is arranged so that it by the second participant for the first participant associated transformation (44 ₁₂ ) from his ner position in the first coordinate system in position in the second coordinate system is convertible.

The VR conferencing system of any of the preceding claims, wherein the system is configured for more than two participants.

10. VR conference system according to one of the preceding claims, wherein the VR co nf e re nzsyste m each participant provides a setting option with respect to the positioning of the avatars of other participants in their own virtual view.

1 1. The V R-matching network according to one of the preceding claims, configured to display the pointing gesture in the second virtual view by having the first party's avatar (46) in the second virtual view with the hand or the finder (50) on the highlighting point (45).

The VR conferencing system of any one of the preceding claims, wherein the one is configured such that in the second virtual view, a face of the avatar (46) of the first participant appears facing the highlighting point (45).

13. The VR conferencing system of claim 1, wherein the VR system is configured to obtain the pointing gesture information from an orientation of a handset (30) of the first party (36) or a line of sight of the first party (36- _! ).

14. VR conference system according to one of the preceding claims, which is out forms to produce each of the first and second virtual view image / video signal.

15. The VR conference system according to claim 1, which is designed to obtain the pointing gesture information via VR glasses (28), a hand-held device (30) or by video-based gesture recognition.

16. VR conference system according to one of the preceding claims, in which the subscribers are located remotely located and the VR conference system is internet-based.

A VR conferencing system as claimed in any one of the preceding claims, wherein the object (34) is a two-dimensional content document.

19. Method of conferencing, with

Presenting a first participant (38- _| ) of a first virtual view, the virtual view showing at least one object (34);

Obtaining from the first participant (38t) a pointer gesture information related to the object;

Presenting a second participant of a second virtual view (48 ₂ ), wherein in the second virtual view an avatar (46) of the first participant is at least partially visible and the object (34) is visible,

wherein the object (34) in the second virtual view is offset relative to a reference position where the object in the second virtual view is for the first participant's avatar (46) as in the first virtual view;

Closing, from the first-to-last pointer information (38 _T ), a relative location of a pointing point (40) on, in or near the object (34) relative to the object (34); and Fading in the second virtual view (48 ₂ ) of a pointing gesture to, or highlighting, a highlighting point (45) having the relative position relative to the object in the second virtual view.

A computer program comprising program code for performing the method of claim 19 when the program is run on a computer.