CN107561706B - Virtual reality projection imaging system - Google Patents
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- CN107561706B CN107561706B CN201710835620.0A CN201710835620A CN107561706B CN 107561706 B CN107561706 B CN 107561706B CN 201710835620 A CN201710835620 A CN 201710835620A CN 107561706 B CN107561706 B CN 107561706B
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Abstract
A virtual reality projection imaging system, comprising: the 3D glasses are arranged on the eyes of the user, so that the light reaching the eyes of the user forms a three-dimensional effect; the projection assembly is arranged between the two lenses of the 3D glasses and used for projecting and imaging the virtual reality in a display space; the action recognition system recognizes the spatial position change of the user and transmits the change to the control system; the control system refreshes corresponding virtual reality scene video content according to the space position change information of the user, and transmits the refreshed virtual reality scene video content to the projection component, and the refreshed virtual reality scene video of the projector component is put on the display space; and the shielding component is used for partially shielding scattered light on a projection path of the projection light projected by the projection component under the condition of not shielding the display light of the display space.
Description
Technical Field
The invention relates to a projection imaging system, in particular to a virtual reality projection imaging system.
Background
Virtual Reality (VR) is a high and new technology that has appeared in recent years, and provides users with an immersive sensory experience through a series of means and manners such as using a computer to virtually simulate real objects, even some objects still in the imagination of people, and through visual, auditory, and even tactile manners. With the ensuing maturation and development of VR technology, the application field thereof is gradually widened. Virtual technologies have been widely used and achieved with great success in the areas of teaching, manufacturing, construction and urban planning, entertainment, medicine, petroleum industry, and the like.
Virtual reality technology has three main features of Immersion (Immersion), Interactivity (Interactivity), and concept (Imagination). Immersion, which refers to the degree of reality of a virtual thing provided to a user by a virtual reality environment, wherein the reality includes visual sense, auditory sense, tactile sense and other aspects; interactivity means that a certain interaction mechanism exists between a user and a virtual environment, and the user can operate things in the virtual environment in a certain way. One of the ways in which users and Virtual Reality (VR) achieve immersive interaction is virtual reality projection imaging techniques.
In various virtual reality display systems which can bring on-site immersion, the virtual three-dimensional projection display system has high presence and participation, so that participants really realize information exchange and reality conception with a virtual space, and the virtual three-dimensional projection display system becomes a virtual reality and visual simulation implementation means and mode which are generally adopted internationally at present and is most widely applied.
The input virtual reality display system is a stereo projection system based on stereo projection technology. The basic principle of stereoscopic display is to reproduce parallax artificially, i.e., a left-eye image and a right-eye image with horizontal parallax are respectively transmitted to the left eye and the right eye of an observer, so that the observer can perceive a stereoscopic depth to form a stereoscopic effect.
In the projection display of the virtual display, when the projection point of the projection device is far away from the viewing point of the user, the shape of the projection is deformed or distorted due to the change of the projection area and the projection angle, and the projection picture observed by the user is deformed. In order to solve the above problems, the invention patent of 201610754119.7 proposes a virtual reality projection imaging system, in which a projector is installed in a set distance range of 3D glasses, and a projection direction of the projector coincides with a visual direction of the 3D glasses, so as to obtain an anti-distortion projection imaging system, which can prevent a projection picture from being deformed or distorted under a projection area with an arbitrary projection angle and an arbitrary shape.
However, in the technical solution of the' 201610754119.7 patent, since the projector is disposed at a position close to the 3D glasses, the projected light is scattered by the influence of particles such as dust in the air on the projection path, and especially, the light intensity per unit area at a position close to the glasses is large, and the scattered light is irradiated to the eyes of the user, which affects the viewing effect of the user.
Disclosure of Invention
The present invention, an improvement of the 201610754119.7 patent, provides a virtual reality projection imaging system that reduces the effects of projected light scattering.
As an aspect of the present invention, there is provided a virtual reality projection imaging system, comprising: 3D glasses which are arranged on the eyes of a user and enable light rays reaching the eyes of the user to form a three-dimensional effect through the 3D glasses; the projection assembly is arranged between the two lenses of the 3D glasses and used for projecting and imaging the virtual reality in the display space; an action recognition system which recognizes a spatial position change of a user and transmits the change to a control system; the control system refreshes corresponding virtual reality scene video content according to the space position change information of the user, and transmits the refreshed virtual reality scene video content to the projection assembly, and the refreshed virtual reality scene video of the projector assembly is put on the display space; a shielding component which partially shields the scattered light on the projection path of the projection light projected by the projection component under the condition of not shielding the display light of the display space; the shielding assembly comprises a first shielding piece and a second shielding piece, the first shielding piece is used for shielding the left eye, and the second shielding piece is used for shielding the right eye; the first shielding piece is arranged in a plane formed by the left eye and the rightmost side of the projection space and extends from the right side of the left eye to the intersection position of the plane formed by the left eye and the rightmost side of the projection space and the projection plane at the leftmost side of the projection assembly; the second shielding piece is arranged in a plane formed by the left side of the right eye and the left side of the projection space, and extends from the left side of the right eye to the position where the plane formed by the left side of the right eye and the left side of the projection space and the right side projection plane of the projection assembly intersect.
Preferably, the projection direction of the projection assembly is consistent with the visual direction of the 3D glasses.
As another aspect of the present invention, there is provided a method comprising: 3D glasses which are arranged on the eyes of a user and enable light rays reaching the eyes of the user to form a three-dimensional effect through the 3D glasses; the projection assembly is arranged between the two lenses of the 3D glasses and used for projecting and imaging the virtual reality in the display space; an action recognition system which recognizes a spatial position change of a user and transmits the change to a control system; the control system refreshes corresponding virtual reality scene video content according to the space position change information of the user, and transmits the refreshed virtual reality scene video content to the projection assembly, and the refreshed virtual reality scene video of the projector assembly is put on the display space; a shielding component which partially shields the scattered light on the projection path of the projection light projected by the projection component under the condition of not shielding the display light of the display space; the shielding assembly comprises a first shielding piece and a second shielding piece, the first shielding piece is used for shielding the left eye, and the second shielding piece is used for shielding the right eye; the first shielding piece comprises a first part and a second part, the first part is a linear connecting part and extends from the right side of a left eye to a parallel plane of a left projection visual angle intersection line of a left eye right visual angle and the projection assembly and a left eye plane and a right eye plane, and the second part is a shielding part and extends to a left projection visual angle intersection line of the left eye right visual angle and the projection assembly along the parallel plane; the second shielding piece comprises a first part and a second part, the first part is a linear connecting part and extends to a parallel surface of a right projection visual angle intersection line of a right eye left visual angle and the projection assembly and a left eye plane from the left side of the right eye, and the second part is a shielding part and extends to a right projection visual angle intersection line of a right eye left visual angle and the projection assembly along the parallel surface.
Drawings
Fig. 1 is a schematic diagram of the optical path of the first embodiment of the present invention.
Fig. 2 is a schematic diagram of the optical path of a second embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the present invention, the present invention will be briefly described below by using embodiments, and it is obvious that the following description is only one embodiment of the present invention, and for those skilled in the art, other technical solutions can be obtained according to the embodiments without inventive labor, and also fall within the disclosure of the present invention.
First embodiment
The virtual reality projection imaging system of the first embodiment of the invention comprises 3D glasses, a projection assembly, an action recognition system and a control system. The 3D glasses are arranged on the eyes of a user, so that light rays reaching the eyes of the user through the 3D glasses form a three-dimensional effect. Polarized 3D glasses or active 3D glasses may be used as the 3D glasses of the virtual reality projection imaging system.
And the projection assembly is arranged at the midpoint position between the two lenses of the 3D glasses, so that the distance from the viewing point position of the projection assembly to the viewing point is smaller than the set distance range of 50cm, and the projection assembly is used for projecting and imaging the virtual reality in the display space. The distance between the projection assembly and the 3D glasses is set, so that the projection direction of the projector is consistent with the visual direction of the 3D glasses, and an anti-distortion projection imaging system is obtained, and a projection picture cannot be deformed or distorted.
A motion recognition system that captures spatial positional changes of a user of the 3D glasses in real time, the spatial positional changes including changes in spatial positions of the head and body, the captured spatial positional changes of the user being communicated to the control system by the communication element.
And the control system refreshes corresponding virtual reality scene video content according to the spatial position change information of the user, transmits the refreshed virtual reality scene video content to the projection assembly, and puts the refreshed virtual reality scene video of the projector assembly on the display space.
And the shielding component can be arranged on the 3D glasses and is used for partially shielding scattered light on a projection path of projection light projected by the projection component under the condition of not shielding the display light of the display space.
Specifically, referring to fig. 1, the projection assembly 10 is disposed between the left eye 20 and the right eye 30, and the projection paths 101, 102, 103, and 104 thereof are scattered. The shielding component comprises a first shielding piece 40 and a second shielding piece 50, the first shielding piece 40 is used for shielding the left eye, and the second shielding piece 50 is used for shielding the right eye.
The first shielding plate 40 is disposed in a plane 105 formed by the left eye 20 and the rightmost side of the projection space 200, and extends from the right side of the left eye 20 to a position where the plane 105 formed by the left eye 20 and the rightmost side of the projection space intersects with the leftmost projection plane 106 of the projection assembly. Accordingly, the first shielding sheet 40 can shield the scattered light on the projection paths 101 and 102 without shielding the display light in the display space 200.
The second shielding plate 50 is disposed in a plane 107 formed by the right eye 30 and the leftmost side of the projection space 200, and extends from the left side of the right eye 30 to a position where the plane 107 formed by the right eye 30 and the leftmost side of the projection space intersects with a right-most projection plane 108 of the projection assembly. Accordingly, the second shielding sheet 50 can shield the scattered light on the projection paths 101 and 104 without shielding the display light in the display space 200.
The first and second shielding sheets 40 and 50 may be formed on the 3D glasses by welding, adhering, or the like, using a light blocking material that is conventional in the art.
Through the arrangement of the embodiment, the scattered light on the projection path of the projection assembly, especially the scattered light close to the eyes of the user, can be shielded, so that the influence of the scattered light on the projection path on the virtual reality viewing effect of the user is reduced.
Second embodiment
The virtual reality projection imaging system of the first embodiment of the invention comprises 3D glasses, a projection assembly, an action recognition system and a control system. The 3D glasses are arranged on the eyes of a user, so that light rays reaching the eyes of the user through the 3D glasses form a three-dimensional effect. Polarized 3D glasses or active 3D glasses may be used as the 3D glasses of the virtual reality projection imaging system.
And the projection assembly is arranged at the midpoint position between the two lenses of the 3D glasses, so that the distance from the viewing point position of the projection assembly to the viewing point is smaller than the set distance range of 50cm, and the projection assembly is used for projecting and imaging the virtual reality in the display space. The distance between the projection assembly and the 3D glasses is set, so that the projection direction of the projector is consistent with the visual direction of the 3D glasses, and an anti-distortion projection imaging system is obtained, and a projection picture cannot be deformed or distorted.
A motion recognition system that captures spatial positional changes of a user of the 3D glasses in real time, the spatial positional changes including changes in spatial positions of the head and body, the captured spatial positional changes of the user being communicated to the control system by the communication element.
And the control system refreshes corresponding virtual reality scene video content according to the spatial position change information of the user, transmits the refreshed virtual reality scene video content to the projection assembly, and puts the refreshed virtual reality scene video of the projector assembly on the display space.
And the shielding component can be arranged on the 3D glasses and is used for partially shielding scattered light on a projection path of projection light projected by the projection component under the condition of not shielding the display light of the display space.
Specifically, referring to fig. 2, the projection assembly 10 is disposed between the left eye 20 and the right eye 30, and the projection paths 101, 102, 103, and 104 thereof are scattered. The shielding component comprises a first shielding piece 40 and a second shielding piece 50, the first shielding piece 40 is used for shielding the left eye, and the second shielding piece 50 is used for shielding the right eye.
Since the human eye viewing angle is usually less than 150 degrees, part of the area on the projection path 101 is actually in the dead zone of the viewing angle, and the scattered light in this dead zone is not actually needed to be shielded. Therefore, the structure of the shielding assembly can be further optimized, thereby reducing the weight thereof and increasing the portability of the system.
The first shielding sheet 40 includes a first portion 41 and a second portion 42. The first portion 41 is a linear connecting portion, which is connected to the 3D glasses and extends from the right side of the left eye 20 to a parallel plane 300 between the intersection line of the left-eye right viewing angle 201 and the left projection viewing angle 106 of the projection assembly 10 and the left-eye plane; the angle between the left-eye right viewing angle 201 and the horizontal plane is set according to the viewing angle of the human eye, and may be set to 15 degrees, for example.
The second portion 42 is a shielding portion, which is connected to the first portion 41 and extends along the parallel plane 300 to an intersection line of the left-eye right viewing angle 201 and the left projection viewing angle 106 of the projection assembly 10.
The second shutter 50 includes a first portion 51 and a second portion 52. The first portion 51 is a linear connection portion connected to the 3D glasses, and extends from the left side of the right eye 30 to a parallel plane 300 between the intersection of the left viewing angle 301 of the right eye and the right projection viewing angle 108 of the projection assembly 10 and the left and right eye planes. The angle between the right-eye left viewing angle 301 and the horizontal plane is set according to the viewing angle of the human eye, and may be set to be 15 degrees, for example.
The second portion 52 is a block-out portion, which is connected to the first portion 51 and extends along the parallel plane 300 to the intersection of the left-eye viewing angle 301 and the right projection viewing angle 108 of the projection assembly 10.
With the arrangement of the above preferred embodiment of the present invention, the first shielding sheet 40 can shield the scattered light on the projection paths 101 and 102 without shielding the display light of the projection space 200; the second shielding sheet 50 can shield the scattered light on the projection paths 101 and 104 without shielding the display light in the projection space 200; meanwhile, the structure of the first shielding piece 40 and the second shielding piece 50 is optimized, so that the weight of the system is reduced, and the portability of the system is increased.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All documents referred to herein are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that after reading the above disclosure of the present invention, the scope of the present invention is not limited to the above embodiments, and those skilled in the art can make various changes or modifications to the present invention without departing from the principle of the present invention, and these equivalents also fall within the scope of the present invention as defined by the appended claims.
Claims (1)
1. A virtual reality projection imaging system, comprising: 3D glasses which are arranged on the eyes of a user and enable light rays reaching the eyes of the user to form a three-dimensional effect through the 3D glasses; the projection assembly is arranged between the two lenses of the 3D glasses and used for projecting and imaging the virtual reality in the display space; an action recognition system which recognizes a spatial position change of a user and transmits the change to a control system; the control system refreshes corresponding virtual reality scene video content according to the space position change information of the user, and transmits the refreshed virtual reality scene video content to the projection assembly, and the refreshed virtual reality scene video of the projector assembly is put on the display space; the method is characterized in that: the shielding component is used for partially shielding scattered light on a projection path of projection light projected by the projection component under the condition of not shielding display light of a display space; the scattered light is light scattered by projection light emitted by the projection assembly on a projection path before reaching the display space; the display light is display light emitted by the display space after being projected by the projection assembly; the shielding assembly comprises a first shielding piece and a second shielding piece, the first shielding piece is used for shielding the left eye, and the second shielding piece is used for shielding the right eye; the first shielding piece comprises a first part and a second part, the first part is a linear connecting part and extends from the right side of a left eye to a parallel plane of a left projection visual angle intersection line of a left eye right visual angle and the projection assembly and a left eye plane and a right eye plane, and the second part is a shielding part and extends to a left projection visual angle intersection line of the left eye right visual angle and the projection assembly along the parallel plane; the second shielding piece comprises a first part and a second part, the first part is a linear connecting part and extends from the left side of the right eye to a parallel plane of a right projection visual angle intersection line of a left visual angle of the right eye and the projection assembly and a left and right eye plane, and the second part is a shielding part and extends along the parallel plane to a right projection visual angle intersection line of a left visual angle of the right eye and the projection assembly; by the system, scattered light on the projection path of the projection assembly can be shielded, so that the influence of the scattered light on the virtual reality viewing effect of a user on the projection path is reduced.
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