CN218957031U - Mixed reality display system - Google Patents
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- CN218957031U CN218957031U CN202222919353.4U CN202222919353U CN218957031U CN 218957031 U CN218957031 U CN 218957031U CN 202222919353 U CN202222919353 U CN 202222919353U CN 218957031 U CN218957031 U CN 218957031U
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Abstract
The utility model discloses a mixed reality display system, and relates to the technical field of mixed reality display. The mixed reality display system comprises a display table, a holographic reflection medium, a holographic screen and a background screen, wherein the upper end surface of the display table is provided with an entity performance area; the holographic reflection medium is arranged on the display table, extends up and down and is arranged on the front side of the physical performance area; the holographic screen is arranged on the display table, extends along the up-down direction and is arranged on one side of the holographic reflection medium, which is opposite to the entity performance area; the background screen is arranged on the display table, extends along the up-down direction and is arranged at the rear side of the entity performance area. Through setting up holographic screen and background screen collocation entity performance to the synchronous show of background screen collocation variation of mode collocation of virtual and reality combination reaches virtual world and real world timely interactive bandwagon effect, improves spectator's impression experience.
Description
Technical Field
The utility model relates to the technical field of mixed reality display, in particular to a mixed reality display system.
Background
Mixed reality technology refers to a new visual environment, MR for short, created by merging the real and virtual worlds. Unlike VR, which is the occlusion of the real world, and AR, which is the superposition of information to the real world, which reconstructs the new world. The technology between the two is the mixed reality technology. MR is a set of technical combinations that not only provides new viewing methods but also new input methods, and all methods combine with each other, thereby promoting innovation. MR is a further development of virtual reality technology that enhances the realism of the user experience by presenting virtual scene information in a real scene, and by looping back an interactive feedback information loop between the real world, the virtual world and the user. Mixed reality devices generally have three main features: 1. combining with the virtual reality 2, the three-dimensional image 3 operates in real time.
The display device currently applied to mixed reality is mainly an MR (magnetic resonance) wearable device, and the wearable device currently realizing mixed reality tends to be miniaturized and can watch a mixed reality scene conforming to a real space physical relationship only by being worn on a human body. The wearing of the MR wearable device has a certain limitation, and each person must wear the MR wearable device to participate in the same project; the distance of the display screen is too short, the visual distance is less than 10cm, and eyes are injured by comparison; the MR wearable device is powered by a battery, has limited endurance time and is not suitable for long-time continuous use; the mixed reality presentation is viewable only by the wearer.
Disclosure of Invention
The utility model mainly aims to provide a mixed reality display system, which aims to solve the problems that the existing mixed reality display has limitations and is not suitable for multiple people to watch or large-scale display items at the same time.
In order to achieve the above object, the present utility model provides a mixed reality display system, which includes:
the display table is provided with an entity performance area on the upper end surface;
the holographic reflection medium is arranged on the display table, extends vertically and is arranged on the front side of the physical performance area;
the holographic screen is arranged on the display table, extends along the up-down direction and is arranged on one side of the holographic reflection medium, which is opposite to the physical performance area; the method comprises the steps of,
the background screen is arranged on the display table, extends along the up-down direction and is arranged on the rear side of the entity performance area.
Optionally, a ground screen is further arranged on the display stand, and the ground screen is arranged in the entity performance area.
Optionally, the ground screen extends along fore-and-aft direction, the lower extreme of background screen with the rear end connection setting of ground screen.
Optionally, two ends of the background screen in the left-right direction are aligned with two ends of the ground screen in the left-right direction respectively.
Optionally, the system further comprises a real-time rendering device which is respectively in communication connection with the background screen, the ground screen and the holographic screen.
Optionally, a holographic imaging surface is formed in the physical performance area after the image of the holographic screen is reflected by the holographic reflection medium, the holographic imaging surface is located at the front side of the background screen, and the height of the holographic imaging surface in the up-down direction is not greater than the height of the background screen in the up-down direction.
Optionally, let the distance between the holographic imaging surface and the background screen be W 1 Let the length of the ground screen in the front-rear direction be W 2 W is then 1 ≥W 2 /2。
Optionally, the upper end of the holographic reflective medium is tilted backward to form an angle D with the display stand 1 The device is provided with a plurality of channels,the holographic screen is arranged above the display stand and forms an included angle D with the upper end surface of the display stand;
wherein d=90° - (90 ° -D) 1 ) 2, and D is ≡0°.
Optionally, the background screen is one of an LED screen, a projector and a television; and/or the number of the groups of groups,
the ground screen is one of an LED screen, a projector and a television; and/or the number of the groups of groups,
the holographic screen is one of an LED screen, a projector and a television.
Optionally, the holographic reflection medium is holographic coated glass or a holographic reflection film.
According to the technical scheme, the mixed reality display system comprises a display table, a holographic reflection medium, a holographic screen and a background screen, wherein an entity performance area is arranged on the upper end face of the display table; the holographic reflection medium is arranged on the display table, extends vertically and is arranged on the front side of the physical performance area; the holographic screen is arranged on the display table, extends along the up-down direction and is arranged on one side of the holographic reflection medium, which is opposite to the physical performance area; the background screen is arranged on the display stand, extends along the up-down direction and is arranged on the rear side of the entity performance area. And through the arrangement of the holographic reflection medium and the holographic screen, the virtual image of the holographic image is transmitted in the physical performance area, and the immersion sense during viewing is improved by matching with the image on the background screen. The video watching experience is good, a plurality of audiences can be accommodated to watch the same mixed reality scene, and any equipment is not required to be worn.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of a mixed reality display system according to the present utility model;
FIG. 2 is a schematic illustration of a labeling of the mixed reality display system of FIG. 1;
fig. 3 is an effect display diagram of the mixed reality display system of fig. 1.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the |
| 100 | Mixed |
21 | Holographic imaging surface |
| 1 | Display stand | 3 | Holographic |
| 11 | Entity performance area | 4 | Background screen |
| 2 | |
5 | Ground screen |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Mixed reality technology refers to a new visual environment, MR for short, created by merging the real and virtual worlds. Unlike VR, which is the occlusion of the real world, and AR, which is the superposition of information to the real world, which reconstructs the new world. The technology between the two is the mixed reality technology. MR is a set of technical combinations that not only provides new viewing methods but also new input methods, and all methods combine with each other, thereby promoting innovation. MR is a further development of virtual reality technology that enhances the realism of the user experience by presenting virtual scene information in a real scene, and by looping back an interactive feedback information loop between the real world, the virtual world and the user. Mixed reality devices generally have three main features: 1. combining with the virtual reality 2, the three-dimensional image 3 operates in real time.
The display device currently applied to mixed reality is mainly an MR (magnetic resonance) wearable device, and the wearable device currently realizing mixed reality tends to be miniaturized and can watch a mixed reality scene conforming to a real space physical relationship only by being worn on a human body. The wearing of the MR wearable device has a certain limitation, and each person must wear the MR wearable device to participate in the same project; the distance of the display screen is too short, the visual distance is less than 10cm, and eyes are injured by comparison; the MR wearable device is powered by a battery, has limited endurance time and is not suitable for long-time continuous use; the mixed reality presentation is viewable only by the wearer.
In view of the above, the utility model provides a mixed reality display system, which aims to solve the problems that the existing mixed reality display has limitations and is not suitable for multiple people to watch or large-scale display items at the same time.
Referring to fig. 1-3, an embodiment of a mixed reality display system 100 according to the present utility model is provided, where the mixed reality display system 100 includes a display stand 1, a holographic reflection medium 3, a holographic screen 2 and a background screen 4, and an entity performance area 11 is provided on an upper end surface of the display stand 1; the holographic reflection medium 3 is arranged on the display stand 1, and the holographic reflection medium 3 extends vertically and is arranged on the front side of the physical performance area 11; the holographic screen 2 is arranged on the display stand 1, and the holographic screen 2 extends along the up-down direction and is arranged on one side of the holographic reflection medium 3, which is opposite to the physical performance area 11; the background screen 4 is arranged on the display stand 1, and the background screen 4 extends along the up-down direction and is arranged at the rear side of the entity performance area 11. By arranging the holographic reflection medium 3 and the holographic screen 2, the virtual image of the holographic image is transmitted in the physical performance area 11, and the immersion sense during viewing is improved by matching with the image on the background screen 4. The video watching experience is good, a plurality of audiences can be accommodated to watch the same mixed reality scene, and any equipment is not required to be worn.
In the technical solution of the present utility model, the mixed reality display system 100 may be suitable for single display items with fixed positions, such as display exhibition stands, comprehensive performance stages, release meeting lectures, education/medical/enterprise training classes, virtual studio, etc.
Further, the display stand 1 is further provided with a ground screen 5, and the ground screen 5 is disposed in the physical performance area 11. Through setting up the ground screen 5 further improves the sense of immersing, can simulate more show scenes, cooperate background screen 4 realizes the promotion that the all-round impression is experienced.
Further, the ground screen 5 extends in the front-rear direction, and the lower end of the background screen 4 is connected with the rear end of the ground screen 5. By connecting the lower end of the background screen 4 with the rear end of the ground screen 5, the continuity of the whole background is improved, and the background is displayed more truly. In this embodiment, the ground screen 5 is laid on the upper end surface of the display stand 1, and the background screen 4 and the ground screen 5 are disposed at a certain included angle, where the specific angle of the included angle is not limited. In an embodiment of the present utility model, the background screen 4 is disposed perpendicular to the ground screen 5, and in other embodiments, the background screen 4 may be disposed at other angles with respect to the ground screen 5.
It should be noted that, the ground screen 5 may be parallel to a horizontal plane, or may be disposed at an angle with respect to the horizontal plane, where the specific angle is not limited, but it is required to ensure that actors and objects may perform safely on the ground screen 5, and generally not more than 30 °.
Further, the two ends of the background screen 4 in the left-right direction are aligned with the two ends of the ground screen 5 in the left-right direction, so that the continuity of the background screen 4 and the ground screen 5 is stronger, and the viewing experience is improved.
It can be appreciated that, in another embodiment of the present utility model, two ends of the background screen 4 in the left-right direction may be offset from two ends of the ground screen 5 in the left-right direction, so that the image on the background screen 4 may be connected with the image on the ground screen 5 through real-time operation or video preprocessing.
In an embodiment of the present utility model, the mixed reality presentation system 100 further includes a real-time rendering device, where the real-time rendering device is communicatively connected to the background screen 4, the ground screen 5, and the holographic screen 2, respectively. The real-time rendering device can render the background screen 4, the ground screen 5 and the holographic screen 2 in real time, a video perspective technology is adopted, real world seen by audiences is acquired in real time through a binocular camera and digitized, then the real-time rendering is performed through a computer algorithm, partial virtual images can be overlapped, the virtual images can be completely overlapped, in addition, the constraint of the real images can be eliminated, the images can be deleted and changed, the new images are rendered through the computer, the real images are seen by human eyes, the real objects are better matched, and the display effect is better.
It should be noted that, during the display process, the virtual image, the physical performing area 11, the background screen 4 and the ground screen 5 respectively form a foreground layer, a physical layer and a background layer, so that in order to make the audience obtain a more real mixed reality display effect at the viewpoint, the foreground layer, the physical layer and the background layer need to have accurate corresponding relations and interaction logic; the scenes displayed by the background screen 4 and the ground screen 5 need to be connected in a seamless manner, and the accurate perspective relation of the viewpoint is met. The real-time rendering device is required to be used, and by setting up screens with the relative positions and relative sizes consistent with those of the mixed reality display system 100 in the real-time rendering device, rendering the real-time display device according to the attribute parameters of the optimal visual angle, selecting the output surface of perspective projection to each screen in the mixed reality display system 100, and using the rendered server cluster, real-time content projected on the output surface in the project can be displayed in the real screen.
The real-time rendering device adopts a cluster scheme consisting of a UE4 real-time rendering engine and 4 servers, wherein 1 server serves as a control end, 3 servers serve as rendering nodes, and each node displays and outputs a corresponding screen. In order to ensure that the time sequence of the cluster server system is consistent, all the screen display images are synchronously aligned, one node is required to be used as a main node, and other nodes are required to synchronize the time sequence, and a synchronization card is required to be used for frame locking.
In an embodiment of the present utility model, a holographic imaging surface 21 is formed on the physical performance area 11 after the image of the holographic screen 2 is reflected by the holographic reflection medium 3, the holographic imaging surface 21 is located at the front side of the background screen 4, and a height H1 of the holographic imaging surface 21 in the up-down direction is not greater than a height H2 of the background screen 4 in the up-down direction. To ensure that the virtual image of the holographic imaging surface 21 is always within the background range of the background screen 4, preventing it from exceeding the background range.
In one embodiment of the present utility model, a distance between the holographic imaging surface 21 and the background screen 4 is set to be W 1 The length of the floor screen 5 in the front-rear direction is set to be W 2 W is then 1 ≥W 2 And/2, namely the holographic imaging surface 21 is positioned in front of the center of the ground screen 5, so that the viewing experience is better. It should be noted that the position of the holographic imaging surface 21 is not particularly limited, and in other embodiments, W may be 1 <W 2 /2。
In one embodiment of the present utility model, the upper end of the holographic reflective medium 3 is inclined backward to form an angle D with the display stand 1 1 The holographic screen 2 is arranged above the display stand 1 and forms an included angle D with the upper end surface of the display stand 1; wherein d=90° - (90 ° -D) 1 ) 2, and D is ≡0°. It should be noted that, the upper end surface of the display stand 1 is generally horizontally disposed, so as to ensure the viewing experience, and the following steps are performedThe best viewing effect when the holographic imaging surface 21 is perpendicular to the upper end surface of the display stand 1, wherein the holographic screen 2 and the holographic imaging surface 21 are symmetrically arranged with the holographic imaging medium as a reference, and the included angle between the holographic screen 2 and the holographic imaging medium is D 2 The included angle between the holographic imaging surface 21 and the holographic imaging medium is D 3 D is 2 ＝D 3 。
In one embodiment, the distance between the viewing point and the front end of the ground screen 5 is W3, so that w1=h2, and w3 is greater than or equal to h1×2, and the viewing effect is better.
In the embodiment of the present utility model, the background screen 4 is one of an LED screen, a projector, and a television; and/or, the ground screen 5 is one of an LED screen, a projector and a television; and/or the holographic screen 2 is one of an LED screen, a projector and a television. Different display devices can be used corresponding to different projects so as to realize the adaptation of different scale display scenes, for example, in small projects with fewer audiences or smaller places, a television or a display can be used to meet the display effect; in large items where the audience is large or the field is large, an LED screen or projector may be used.
Specifically, when the holographic screen 2 is used, an LED screen is usually a small-spacing LED screen (the physical point spacing is less than or equal to 2.0 mm), the brightness is more than 600nit, and the refresh rate is more than or equal to 3840Hz; the projector generally uses a high lumen (more than or equal to 6000 lm) laser engineering projector, and is usually provided with an ultra-short focal lens or a short focal lens; the television screen generally adopts an OLED (organic light emitting diode) which displays black and almost has no ground color, a mini-LED and a QLED panel television, and the common LCD television screen has obvious ground color when displaying black in a non-partition backlight mode, so that the television screen is not recommended to be adopted and is generally suitable for a miniaturized display stand.
When the LED screen is used as the background screen 4, a small-spacing LED screen (the distance between physical points is less than or equal to 2.0 mm) is usually adopted as the LED screen, the brightness is more than 600nit, and the refresh rate is more than or equal to 3840Hz; the projector generally uses a high lumen (more than or equal to 6000 lm) laser engineering projector with a short-focus lens, can be used for front projection and rear projection, and needs to be provided with a rear projection curtain during rear projection; television sets are commonly used in miniaturized projects.
When the LED floor tile screen is used as the ground screen 5, the LED floor tile screen is generally adopted, and compared with a conventional LED floor tile screen, the LED floor tile screen can be trampled, is waterproof, and has a refreshing rate of more than or equal to 3840Hz; the projector adopts a high lumen (more than or equal to 6000 lm) laser engineering projector with a short focal lens, and can project above a real object to achieve a corresponding visual display effect.
In the embodiment of the utility model, the holographic reflection medium 3 is holographic coated glass or holographic reflection film. The thickness of the holographic reflection film is about 100 mu m, and the holographic reflection film is made of PET material, has the width of 4-8m and can be suitable for larger items; the holographic coated glass is limited by the physical characteristics of the glass, is generally smaller in size and is suitable for smaller items.
In another embodiment of the present utility model, the hybrid display system may further include a left side screen and a right side screen or a top screen, where the left side screen and the right side screen or the top screen are selected according to requirements of items to increase coverage of a background, and curved-surface screens may be adopted to splice between each plane, so that the look and feel of the background is more coherent.
Referring to fig. 3, in the solution of the present utility model, the mixed reality display system 100 generally has three main features: 1. combining with the virtual reality 2, the three-dimensional image 3 operates in real time. The mixed reality display system 100 can be split into three layers, namely a background layer, a physical layer and a foreground layer during display.
Background layer: the background screen 4 and the ground screen 5 are connected in a seamless manner, and the background screen 4 and the displayed content of the ground screen 5 are spliced into a whole picture. All display contents of the background layer have perspective relations, and the perspective points are positioned at the under-table viewing points, so that two screens are integrally viewed at the on-table viewing points without obvious demarcations. The background screen 4 and the ground screen 5 both display floor tiles of the sidewalk, and the audience at the viewing point sees images with accurate perspective relation, and creates the visual illusion generated under the visual cognition and the reference system of the person. The picture formed by the background screen 4 and the ground screen 5 is considered to be a real natural environment, i.e. an immersive picture.
Physical layer: the method comprises the steps that real persons and real objects required by participation in the whole mixed reality project are involved, the real persons and the real objects can participate in interaction with a virtual environment, such as swinging props in hands, a foreground layer emerges from a flying bird, the body is rotated, the foreground layer overlaps a layer of light effect at the side, and meanwhile the whole background environment is switched to pass through to the other world.
Foreground layer: a virtual image (the holographic imaging surface 21) on the stage is formed by the holographic screen 2 via the holographic reflection medium 3. The displayed content is usually an image of an alpha transparent channel, and the area of the holographic imaging surface 21 where the content is not displayed presents transparent color/full black, and only a stereoscopic holographic image is displayed on the holographic imaging surface 21. The foreground layer mainly shows a 3D model and effects with stereoscopic impression, and as shown in fig. 3, a sports car in the foreground layer enters from the right side and suddenly becomes a model of a transformer on a stage. Or the automobile in the foreground layer is semitransparent, so that the internal space layout and design characteristics of the automobile can be seen, and the automobile is rich in technological sense and excellent visual experience.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A mixed reality display system, comprising:
the display table is provided with an entity performance area on the upper end surface;
the holographic reflection medium is arranged on the display table, extends vertically and is arranged on the front side of the physical performance area;
the holographic screen is arranged on the display table, extends along the up-down direction and is arranged on one side of the holographic reflection medium, which is opposite to the physical performance area; the method comprises the steps of,
the background screen is arranged on the display table, extends along the up-down direction and is arranged on the rear side of the entity performance area.
2. The mixed reality display system of claim 1, wherein a floor screen is further provided on the display stand, the floor screen being provided on the physical performance area.
3. The mixed reality display system of claim 2, wherein the ground screen extends in a front-to-rear direction, and a lower end of the background screen is connected to a rear end of the ground screen.
4. The mixed reality presentation system of claim 3, wherein the left and right ends of the background screen are aligned with the left and right ends of the ground screen, respectively.
5. The mixed reality presentation system of claim 2, further comprising a real-time rendering device communicatively coupled to the background screen, the ground screen, and the holographic screen, respectively.
6. The mixed reality presentation system of claim 2, wherein an image of the holographic screen is reflected by the holographic reflective medium to form a holographic imaging surface in the physical performance area, the holographic imaging surface being positioned on a front side of the background screen, and a height of the holographic imaging surface in an up-down direction is not greater than a height of the background screen in the up-down direction.
7. The mixed reality presentation system of claim 6, wherein a distance W between the holographic imaging surface and the background screen is set to be 1 Let the length of the ground screen in the front-rear direction be W 2 W is then 1 ≥W 2 /2。
8. The mixed reality display system of claim 6, wherein an upper end of the holographic reflective medium is tilted back to form an angle D with the display stage 1 The holographic screen is arranged above the display stand,and is arranged at an included angle D with the upper end surface of the display stand;
wherein d=90° - (90 ° -D) 1 ) 2, and D is ≡0°.
9. The mixed reality presentation system of any of claims 2 to 8, wherein the background screen is one of an LED screen, a projector, a television; and/or the number of the groups of groups,
the ground screen is one of an LED screen, a projector and a television; and/or the number of the groups of groups,
the holographic screen is one of an LED screen, a projector and a television.
10. The mixed reality display system of any one of claims 1-8, wherein the holographic reflective medium is holographic coated glass or a holographic reflective film.
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