CN113225548A - Non-main visual angle image acquisition method, single-frame glasses and virtual reality system - Google Patents
Non-main visual angle image acquisition method, single-frame glasses and virtual reality system Download PDFInfo
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- CN113225548A CN113225548A CN202110312712.7A CN202110312712A CN113225548A CN 113225548 A CN113225548 A CN 113225548A CN 202110312712 A CN202110312712 A CN 202110312712A CN 113225548 A CN113225548 A CN 113225548A
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- 239000011521 glass Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010586 diagram Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/55—Depth or shape recovery from multiple images
Abstract
The invention relates to a non-main visual angle image acquisition method, single-frame glasses and a virtual reality system, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, the virtual reality system displays a screen image, the screen image is provided with a first image and a second image in a staggered mode, and the first image and the second image respectively display virtual objects at different positions based on the main visual angle position; the non-main visual angle image acquisition method comprises the following steps: stopping acquiring the image when the screen image displays the first image; when the screen image displays the second image, the acquisition of the image is started. Compared with the prior art, the invention can present the stereo image as the plane image, solves the distance illusion problem of the non-main visual angle in CAVE, and increases the comfort level of the observer.
Description
Technical Field
The invention relates to the field of virtual reality systems, in particular to a non-main visual angle image acquisition method, single-frame glasses and a virtual reality system.
Background
The virtual reality technology is more and more widely applied to automobile development, and in the interaction process of CAVE (CAVE-shaped automatic virtual system, the same below), a computer respectively calculates images of left and right eyes, projects the images onto a screen, and then respectively displays the two images into the left and right eyes of a person in a mode of opening and closing left and right glasses lenses, so that the person can generate a stereoscopic sense, and the person can have a distance sense in the CAVE system and is used for reviewing in the process of reviewing and research and development.
In the existing CAVE system, left and right eye images are displayed on a screen, wherein the displayed images are calculated by a computer through a main visual angle, so that only the main visual angle is completely accurate in perspective and has a good stereoscopic effect.
Because the stereo image received by the non-main visual angle is still the image information of the main visual angle, and the non-main visual angle and the main visual angle have deviation, the spatial perspective inconsistency is easily caused to the non-main visual angle.
Disclosure of Invention
The invention aims to overcome the defects that the non-main visual angle and the main visual angle are deviated in position and the non-main visual angle is easy to cause inconsistent spatial perspective in the non-main visual angle in the prior art, and provides a non-main visual angle image acquisition method, single-frame glasses and a virtual reality system.
The purpose of the invention can be realized by the following technical scheme:
a non-main visual angle image acquisition method of a virtual reality system is provided, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, a screen image is displayed on the virtual reality system, a first image and a second image are displayed on the screen image in a staggered mode, and the first image and the second image respectively display virtual objects at different positions based on the main visual angle position;
the non-main visual angle image acquisition method comprises the following steps: stopping acquiring the image when the screen image displays the first image; and starting to acquire the image when the screen image displays the second image.
Further, the screen image displays the first image in an odd number frame and the second image in an even number frame,
the non-main visual angle image acquisition method specifically comprises the following steps:
stopping acquiring images in the odd frames of the screen images, and starting acquiring images in the even frames of the screen images; or starting to acquire images in the odd frames of the screen images and stopping acquiring images in the even frames of the screen images.
Further, the virtual reality system is a cave-shaped automatic virtual reality system, a head-mounted virtual reality system or an annular virtual reality system.
The invention also provides single-frame glasses for the virtual reality system, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, the virtual reality system displays a screen image, the screen image is provided with a first image and a second image in a staggered manner, and the first image and the second image respectively display virtual objects at different positions based on the main visual angle position;
the single-frame glasses are located at the non-main visual angle position, and when the screen image displays the first image, the single-frame glasses are closed; and when the screen image displays the second image, the single-frame glasses are opened.
Further, the screen image displays the first image in a singular frame and the second image in an even frame, and the single-frame glasses are closed in the singular frame and opened in the even frame; or on in odd frames and off in even frames.
The invention also provides a virtual reality system, which comprises a projector, a screen, a graphic cluster system and three-dimensional glasses, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, the three-dimensional glasses are used as the main visual angle position, and the graphic cluster system controls the projector to display a first image and a second image in a staggered manner in the screen according to the main visual angle position;
the virtual reality system further comprises single-frame glasses, the single-frame glasses are located at the non-main visual angle position, and when the screen image displays the first image, the single-frame glasses are closed; and when the screen image displays the second image, the single-frame glasses are opened.
Furthermore, the virtual reality system further comprises a stereo transmitter, and the stereo transmitter is respectively in communication connection with the single-frame glasses and the graphic cluster system and is used for transmitting the number of synchronous frames.
Compared with the prior art, the invention has the following advantages:
aiming at the problem that the position of a non-main visual angle and a main visual angle in the existing virtual reality system has deviation and the non-main visual angle is easy to cause inconsistent spatial perspective, a scheme of single image acquisition is adopted, a three-dimensional image on a screen is presented as a plane image in the non-main visual angle, the three-dimensional image has no three-dimensional effect and is consistent with the feeling of people in a real state, the problem of distance illusion of the non-main visual angle in CAVE is solved, and the comfort level of an observer is improved.
Drawings
FIG. 1 is a schematic structural diagram of a cave-shaped automatic virtualization system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a signal processing flow of the cave-shaped automatic virtualization system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the left and right eye display and control principles of the single-frame glasses and the stereoscopic glasses according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Example 1
The embodiment provides a non-main visual angle image acquisition method of a virtual reality system, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, the virtual reality system displays a screen image, the screen image is provided with a first image and a second image in a staggered mode, and the first image and the second image respectively display virtual objects at different positions based on the main visual angle position;
the non-main visual angle image acquisition method comprises the following steps: stopping acquiring the image when the screen image displays the first image; when the screen image displays the second image, the acquisition of the image is started.
In the embodiment of the invention, the virtual reality system displays the first image and the second image in a staggered manner according to the main visual angle position, the first image can correspond to the left eye image at the main visual angle position, the second image can correspond to the right eye image at the main visual angle position, therefore, the main visual angle position can observe the three-dimensional image through the three-dimensional glasses, and the virtual reality system can track the main visual angle position to adjust the position of the virtual object in the screen image; however, at this time, because the non-dominant viewing angle position and the dominant viewing angle position have a deviation, if the non-dominant viewing angle position receives the left eye image and the right eye image with the stereoscopic glasses as well, spatial disorder is easily generated, so in this embodiment, the image acquisition method of the non-dominant viewing angle adopts a mode of receiving only the second image and not receiving the first image, and may be specifically implemented by receiving only the left eye image, not receiving the right eye image, or receiving only the right eye image and not receiving the left eye image; therefore, a plane image is observed from a non-main visual angle, the stereoscopic impression is avoided, the feeling of people in a real state is consistent, and the problems of distance illusion and space disorder are solved.
Preferably, the screen image displays the image in frames, the first image is displayed in a single frame, and the second image is displayed in a double frame, and the non-main viewing angle image obtaining method specifically includes: stopping acquiring images in the odd frames of the screen images, and starting acquiring images in the even frames of the screen images; or starting to acquire the image in the odd frame of the screen image and stopping acquiring the image in the even frame of the screen image.
If the screen image displays images in a frame-by-frame manner, the non-main visual angle image acquisition method can also acquire images in a frame-by-frame manner, and the non-main visual angle image acquisition method can be kept synchronous with the screen image, so that the control is convenient.
The embodiment further provides a single-frame glasses for the virtual reality system, the single-frame glasses are used for the non-main visual angle position of the virtual reality system, and the non-main visual angle image acquisition method is adopted, if the screen image is displayed with the first image and the second image in an interlaced mode, when the screen image displays the first image, the single-frame glasses are closed; when the screen image displays the second image, the single-frame glasses are turned on, and the turning on and off of the single-frame glasses are alternatively kept synchronous with the image of the screen image.
If the screen image displays the first image in the odd frame and the second image in the even frame, the single-frame glasses are closed in the odd frame and opened in the even frame; or on in odd frames and off in even frames, the single-frame glasses are turned on and off alternately in synchronization with the image of the screen image, thereby achieving a flat effect.
The specific implementation process comprises the following steps:
referring to fig. 1, this embodiment provides an implementation process of applying the single-frame glasses to a CAVE-shaped automatic virtual system CAVE, and it should be noted that the virtual reality system provided by the present invention is not limited to the CAVE-shaped automatic virtual system, and may be a head-mounted virtual reality system, an annular virtual reality system, or any other system capable of performing virtual reality; in this embodiment, the cave-shaped automatic virtual system itself includes a plurality of projectors, a screen, and a tracking device, and each projector and the tracking device are connected by a projector optical path; the cave-shaped automatic virtual system comprises three screens, three projectors and four tracking devices, wherein the three screens are sequentially and vertically connected to form a rectangle with an opening at one end, each screen is correspondingly provided with one projector, the two ends of each screen are respectively provided with the tracking devices, the cave-shaped automatic virtual system is used for framing a left eye image and a right eye image based on the hardware structure, a pair of stereoscopic glasses and one or more single-frame glasses are arranged in the cave-shaped automatic virtual system, the positions of the stereoscopic glasses serve as main visual angle positions, the single-frame glasses serve as non-main visual angle positions, the four tracking devices are used for tracking the main visual angle positions, the cave-shaped automatic virtual system is used for displaying images according to the main visual angle positions, and the stereoscopic glasses can be provided with or without tracking stereoscopic glasses.
Referring to fig. 2, which is a signal connection diagram of this embodiment, a cave-shaped auto-virtualization system captures the tracked positions of stereoscopic glasses through a tracking device according to a tracking body on the stereoscopic glasses with a moving main viewing angle, so as to calculate the positions of left and right eyes, then calculates dynamic left and right eye images through an image clustering system, and synchronizes the frame numbers of screen servers, so as to project the left and right eye images onto a screen; at the moment, the stereoscopic images of the left eye and the right eye can be presented through the stereoscopic glasses, and the processing process is circularly operated to realize continuous playing.
In addition, referring to fig. 3, a stereo transmitter for controlling the frame number is added for the left and right eye display and control principle of the single-frame glasses, and the stereo transmitter is respectively connected with the single-frame glasses and the graphics distribution system for simultaneously controlling the frame number of the single-frame glasses and the graphics distribution system, so that the single-frame glasses can be synchronized with the cave-shaped automatic virtual system, and the on and off operations are performed according to the frame number.
For example, the stereo transmitter continuously controls the single-frame glasses and the graphics hub system to be at 0,1,2,3,4,5,6 … … frames, where the 0 th frame is an even number frame, in this example, the left eye of the stereo glasses is closed and the right eye of the stereo glasses is opened during the odd number frame, and the left eye of the stereo glasses is opened and the right eye of the stereo glasses is closed during the even number frame, so that the stereo picture with perspective left and right eyes can be displayed through the stereo glasses; when the single-frame glasses are used for even frames, the left eye and the right eye are both closed, and when the single-frame glasses are used for odd frames, the left eye and the right eye are both opened, so that a plane picture with perspective right eye is presented, the opening finger acquires an image, and the closing finger stops acquiring the image; therefore, the user wearing the stereo glasses can normally observe the stereo image through the stereo glasses with the main visual angle, and the single-frame glasses can normally observe the plane image.
It should be noted that the graphics cluster system may be any device or carrier with computing capability, such as a local computer, a server, a chip, a network cloud processor, and the like. The tracking equipment can be any device and equipment capable of detecting distance, such as a camera device, a radar device, a laser device and the like. The tracking body of the stereo glasses can be face recognition, body recognition, a handle, a data garment, other objects or object combinations of which the data can be measured.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A non-main visual angle image acquisition method of a virtual reality system is provided, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, a screen image is displayed on the virtual reality system, a first image and a second image are displayed on the screen image in a staggered mode, and the first image and the second image respectively display virtual objects at different positions based on the main visual angle position;
the non-main viewing angle image acquisition method is characterized by comprising the following steps: stopping acquiring the image when the screen image displays the first image; and starting to acquire the image when the screen image displays the second image.
2. The method of claim 1, wherein the screen image displays the first image in a single frame and the second image in a double frame,
the non-main visual angle image acquisition method specifically comprises the following steps:
stopping acquiring images in the odd frames of the screen images, and starting acquiring images in the even frames of the screen images; or starting to acquire images in the odd frames of the screen images and stopping acquiring images in the even frames of the screen images.
3. The method according to claim 1, wherein the virtual reality system is a cave-shaped automatic virtual reality system, a head-mounted virtual reality system or a ring-shaped virtual reality system.
4. A single-frame glasses for a virtual reality system is provided with a main visual angle position and a non-main visual angle position, the virtual reality system displays a screen image, the screen image is displayed with a first image and a second image in a staggered mode, and the first image and the second image respectively display virtual objects at different positions based on the main visual angle position;
the single-frame glasses are located at the non-main visual angle position, and when the screen image displays the first image, the single-frame glasses are closed; and when the screen image displays the second image, the single-frame glasses are opened.
5. The single-frame glasses for a virtual reality system according to claim 4, wherein the screen image displays the first image in a single frame and the second image in an even frame, and the single-frame glasses are turned off in the single frame and turned on in the even frame; or on in odd frames and off in even frames.
6. A virtual reality system comprises a projector, a screen, a graphic cluster system and three-dimensional glasses, wherein the virtual reality system is provided with a main visual angle position and a non-main visual angle position, the positions of the three-dimensional glasses are used as the main visual angle position, and the graphic cluster system controls the projector to display a first image and a second image in a staggered manner in the screen according to the main visual angle position;
the virtual reality system is characterized by further comprising single-frame glasses, wherein the single-frame glasses are located at the non-main visual angle position, and when the screen image displays the first image, the single-frame glasses are closed; and when the screen image displays the second image, the single-frame glasses are opened.
7. The virtual reality system of claim 6, further comprising a stereo transmitter communicatively coupled to the single frame glasses and the graphics cluster system, respectively, for transmitting the synchronization frame number.
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