CN107462994A - Immersive VR head-wearing display device and immersive VR display methods - Google Patents
Immersive VR head-wearing display device and immersive VR display methods Download PDFInfo
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- CN107462994A CN107462994A CN201710786863.XA CN201710786863A CN107462994A CN 107462994 A CN107462994 A CN 107462994A CN 201710786863 A CN201710786863 A CN 201710786863A CN 107462994 A CN107462994 A CN 107462994A
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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
- G02B27/0101—Head-up displays characterised by optical features
-
- 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
-
- 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
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
-
- 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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera
-
- 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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
Abstract
The invention discloses a kind of immersive VR head-wearing display device and immersive VR display methods, belong to dimension display technologies neighborhood, head-wearing display device includes head tracking and attitude detection system, wears display optical system, image segmentation system, coding and solution code system and processing system；Head tracking and image of the attitude detection system for shooting human eye peripheral environment, coding will be tracked with being transferred to processing system after the decoding of the picture signal of attitude detection system with solution code system, by coding with being transferred to described image segmenting system after decoding system coding after processing system is handled, the image information received is divided into after multiple display images and shown by wearing display optical system by image segmentation system.Peripheral environment scene image is shot by head tracking and attitude detection system and obtains head position and attitude information, peripheral environment scene image information and virtual video information superposition are realized to the combination of real world and virtual world.
Description
Technical field
The present invention relates to dimension display technologies neighborhood, specifically, is related to a kind of immersive VR and wears display dress
Put and immersive VR display methods.
Background technology
Virtual reality technology is a kind of computer simulation system that can be created with the experiencing virtual world.The more quilts of this technology
For entertaining, such as immersion video-game.But virtual reality technology is also of great significance in other field, such as cure
, military aerospace etc..
The virtual reality device of current main flow on the market, such as HTC Vive, Oculus Rift etc., its angle of visual field does not reach
To the optimal visual field (120 °) of head-mounted display.Therefore user's feeling of immersion can not be improved to greatest extent.
And such as HTC Vive, it is used for head tracking and the equipment of attitude detection is too numerous and diverse, and needs one are larger
Space carry out the running of holding equipment.And the virtual reality device of most of mobile terminal, head tracking is realized using gyroscope, nothing
Method ensures tracking accuracy.
The content of the invention
The purpose of the present invention shows to provide a kind of immersive VR head-wearing display device and immersive VR
Method, while big visual field is realized, it is ensured that head tracking precision, and it is little using space during running.
To achieve these goals, immersive VR head-wearing display device provided by the invention include head tracking with
Attitude detection system, wear display optical system, image segmentation system, coding and solution code system and processing system；Head with
Track will tracking and attitude detection system with solution code system with image of the attitude detection system for shooting human eye peripheral environment, coding
Picture signal decoding after be transferred to processing system, after processing system is handled by coding with decode system coding after be transferred to
The image information received is divided into after multiple display images by wearing by described image segmenting system, image segmentation system
Display optical system is shown.
In above-mentioned technical proposal, peripheral environment scene image is shot by head tracking and attitude detection system and obtains head
Portion position and attitude information, processing system can be external computers, and computer is by peripheral environment scene image information and virtually
Video information, which is superimposed, realizes the combination of real world and virtual world, meanwhile, computer is according to head position and attitude information
Change adjustment virtual video information in order in reality peripheral environment scene image more merge.
Specific scheme is that head tracking is used for peripheral scene with attitude detection system including being placed in the right and left eyes position of people
Actual photographed outdoor scene image unit, for peripheral scene pan-shot panoramic shooting unit and position and posture pass
Sensor.
The environment panorama for shooting to obtain by the use of panoramic shooting is as substrate, in superposition thereon using two positioned at right and left eyes
Regular camera shoots obtained peripheral scene.Because the coverage of panoramic shooting unit is larger, but resolution ratio is relatively low, and normal
The coverage of rule camera is smaller, and resolution ratio is higher.Effect after so overlapping is exactly in relatively low big of a secondary resolution ratio
In image, some region (i.e. regular camera shooting area, namely normal eye viewing area) is than the resolution ratio of surrounding
It is high.The telepresenc of user can be deepened by adding the less high surrounding environment of resolution ratio.
Above video additive process is realized by the FPGA in the image segmentation system in head-wearing display device.It will be respectively
The vision signal for coming from regular camera and panoramic shooting unit synthesizes vision signal all the way and encoded, and passes through cable
It is connected to coding to be decoded with solution code system, decoded video is input to processing system by USB3.0 ports and counted
Calculate, to realize the acquisition of peripheral outdoor scene, and head tracking and attitude detection.
Another specific scheme is to wear two sets of monocular optical systems that display optical system includes being symmetrically arranged；
Monocular optical system includes the display for being successively set on the lens group in front of human eye and being placed on after lens group；Lens group
Including at least one set of Fresnel Lenses, every group of Fresnel Lenses is spliced by two pieces of resin plates for being carved with Fresnel Lenses broached-tooth design
Form；Display is two pieces, parallel with corresponding resin plate respectively；The summit of the stitching portion of two pieces of resin plates to eyeball center
Line and the angle β between the optical axis of eyeball are more than 0 °.
Fresnel Lenses group is used for the image of display projection into the virtual image of amplification, and every group of Fresnel Lenses is by two pieces of quarters
The resin plate for having Fresnel Lenses broached-tooth design is spliced, why with splicing Fresnel Lenses group replaces commonly it is saturating
Mirror, it is in order that left and right fields of vision is more convenient in splicing.If being common lens group, because its profile is generally justified
Shape, it can not accomplish when two sets of left and right, imaging system is spliced seamless spliced.And be spliced to form with two pieces of resin plates, due to its profile
For rectangle, gap is not present after two rectangle splicings.
The summit of two pieces of resin plate stitching portions is set to the line at eyeball center, with the folder between the optical axis of eyeball
Angle is more than 0 °, and the reason for doing so is as follows：
In monocular system, if eyes see the stitching portion to two pieces of resin plates just, because stitching portion is not imaged work
With, therefore this when of human eye can't see the image of display projection.And last complete biocular systems contain as above two sets
Monocular system, if being not provided with this angle requirement, then when eye-observation infinite point, binocular all falls in two sets of systems just
Unite respective Fresnel Lenses stitching portion, now binocular can not all obtain the image from display, therefore this position into
For blind area.And there is provided after this angle, due to binocular convergence, when an eyes are seen to the stitching portion of Fresnel Lenses,
Another eyes will not necessarily see the stitching portion to it, therefore viewing blind zone is not present.
More specifically scheme is that the resin plate described in two pieces is spliced into L-type；Lens group includes two groups of phenanthrene alunites of parallel arrangement
That lens；Positioned at the display of human eye left front and right front, optical system forms two virtual images of amplification in sky respectively by visual observation
Between in there is overlapping region δ, in overlapping region δ, the brightness of image of two displays gradually becomes from the display place of overlapping to edge
Secretly.
Also the Fresnel Lenses group of other quantity can be arranged as required into.The brightness of image of two displays is handed over from display
It is to be finally synthesizing the uniformity of brightness of image that folded place is gradually dimmed to edge.
More specifically scheme is each L-type Fresnel Lenses, and its each arm forms a mesh with optical lens thereafter
Optometry system, and the parameter area of optical system is as follows：
Horizontal to be more than 80 ° with vertical field of view, inner side half-angle is 45 °, and overlapping region is 90 °；
The visual system of two-arm is combined into a monocular optical system, and its visual field is more than 120 °.
So L-type Fresnel Lenses two-arm is respectively the optical system more than a set of 80 ° of angles of visual field, just turns into after splicing
Optical systems more than one 120 ° of visual field.
More specifically scheme is that the simple eye visual field for wearing display optical system is more than 120 ° for another, and eyes visual field is more than
150 °, lap is more than 90 °.
Immersive VR display methods provided by the invention comprises the following steps：
1) peripheral environment real scene image is obtained；
2) the peripheral environment real scene image is superimposed to the vision signal for obtaining actual play with virtual video image；
3) vision signal of the actual play is split, and shown on more displays；
4) analysis is carried out to the peripheral environment real scene image and obtains position and attitude information；
5) virtual video image is adjusted by the position and attitude information makes itself and the peripheral environment outdoor scene
Image is merged.
Specific scheme is that step 1) includes：Peripheral environment panorama is shot as substrate by the use of full-view camera, in the base
The peripheral environment image that superposition shoots to obtain using regular camera on bottom.
Compared with prior art, beneficial effects of the present invention are：
(1) head tracking and attitude detection of the invention are moved by the axle of overall view ring belt imaging system and gyroscope etc. nine
Sensor is combined realization.Therefore head tracking and attitude detection can be improved on the premise of equipment occupation space is not increased
Accuracy；
(2) optical system of wearing of the invention uses the method for multi-display visual angle splicing, therefore can improve virtual aobvious
Show the angle of visual field of equipment, to reach the optimal viewing angle of head-mounted display, so as to improve the feeling of immersion of user；
(3) mode that the present invention is combined using panoramic shooting system and outdoor scene camera system obtains peripheral outdoor scene, therefore
Peripheral outdoor scene as big as possible can be obtained, on the premise of resolution ratio is not reduced so as to strengthen the telepresenc of user.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is that the immersion of the embodiment of the present invention wears the structural representation of display optical system；
Fig. 3 is that the immersion of the embodiment of the present invention wears the specific of a wherein arm visual system for display optical system
Structure chart.
Embodiment
With reference to embodiments and its accompanying drawing the invention will be further described.
Embodiment
Referring to Fig. 1 and Fig. 2, immersive VR head-wearing display device includes head tracking and attitude detection system 1, head
Wear display optical system 2, image segmentation system 3, coding and solution code system 4 and processing system 5.Wherein coding and solution code system 4
Processing system 5 will be passed to after head tracking and the decoding of the signal of attitude detection system 1 first, led to after the processing of processing system 5
The signal that crossing coding can identify with solving code system 4 to be encoded into image segmentation system 3 is transmitted to image segmentation system 3, image segmentation again
The image coding information that system 3 draws processing system 5 reduces, and is divided into multiple display images, and be transferred to wear it is aobvious
Show that optical system 1 is shown, processing system 5 includes an external computer.
Head tracking includes outdoor scene image unit, panoramic shooting unit and position with attitude detection system 2 and posture passes
Sensor.Outdoor scene image unit includes two regular cameras for being respectively placed in the right and left eyes position of people, the reality for peripheral scene
Border is shot, and the virtual reality fusion for realizing video for head-wearing display device provides real scene image.Panoramic shooting unit includes a panorama
Shooting part, for the pan-shot of peripheral scene, image is provided for the position and posture of head-wearing display device.Position and posture
Sensor can be gyroscope.
In the present embodiment, wearing display optical system 2 includes two sets of monocular optical systems of symmetrical placement, wherein,
Monocular optical system 05 is placed in the front of left eye 07, and monocular optical system 06 is placed in the front of right eye 08.Each monocular light
System includes being placed sequentially in the lens group before human eye, and is positioned over after lens group, is respectively placed in human eye left front
With two displays of right front, be placed in the left front of left eye 07 and right front is respectively OLED display screen 01 and OLED display screen
02, respectively OLED display screen 03 and the OLED display screen 04 of the left front of right eye 08 and right front are placed in, wherein each OLED screen
The resolution ratio of curtain is 1000x1200, and big visual field, the resolution ratio 2000x1200 each synthesized are synthesized by two pieces of OLED.Lens group
L-type Fresnel Lenses is used comprising at least one L-type Fresnel Lenses, and close to first piece of lens of human eye.
Lens group includes a L-type Fresnel Lenses and a non-spherical lens, wherein, close to the L-type Fresnel of human eye
Lens are connected by two pieces of resin plate both ends to be formed, and it is saturating that Fresnel is carved with respective two surfaces at least side surface of every piece of resin plate
The broached-tooth design of mirror, and form the summits of two pieces of resin plate junctions of L-type Fresnel Lenses to eyeball center line with it is vertical
Directly the angle β between the optical axis of eyeball is more than 0 °, and to avoid when observing infinite point, binocular is seen to L-type Fresnel simultaneously
The stitching portion of two pieces of resin plates of lens, so as to blind area occur.
The each arm of L-type Fresnel Lenses forms a complete visual system with optical lens thereafter, and it has
Body structure can be as shown in figure 3, contain the Fresnel Lenses and two aspherical plastic lens lens close to human eye.Left side
For position of human eye, right side is location of displays.Display uses OLED display screen, and pixel size is about 50um, and striped demand pairs are
10lp/mm。
OLED display screen in front of same eyes or so forms the virtual image of amplification by L-type Fresnel Lenses respectively,
Two virtual images have overlapping region δ in space.In overlapping region δ, the brightness of image of two displays overlapped from display to
Edge is gradually dimmed, therefore two displays, after the image of overlapping region is superimposed, its total brightness and two displays are each
Brightness from Non-overlapping Domain is identical, is easy to be finally synthesizing the uniformity of brightness of image, is achieved in the smooth spelling of left and right fields of vision
Connect.
Each L-type Fresnel Lenses as described above, its each arm form one completely with optical lens thereafter
Visual system, and the parameter area of optical system is as follows：
Horizontal to be more than 80 ° with vertical field of view, inner side half-angle is 45 °, and it is 90 ° to ensure overlapping region；The visual optical of two-arm
System is combined into a monocular optical system, and its visual field is more than 120 °.So L-type Fresnel Lenses two-arm is respectively a set of 80 ° and regarded
Optical system more than rink corner, just become optical systems more than 120 ° of visual fields after splicing.
Specific embodiment is as follows：
First, head tracking and attitude detection system 1 shooting obtains peripheral real scene image, including panoramic shooting system and puts
In the video that the regular camera of right and left eyes opening position is shot, encoding with using FPGA in solution code system 4, synthesizing and regard all the way
Frequency signal is simultaneously encoded, and is decoded by the coding and solution code system of cable connection to the side of processing system 5, decoded to regard
Frequency is input to processing system 5 by USB3.0 ports and calculated, to realize the acquisition of peripheral outdoor scene, and head tracking and appearance
State detects.The virtual video Signal averaging that now processing system 5 will be shown passes through coding on the actual video signal of acquisition
The form that is encoded into image segmentation system 3 with solving code system 4 and can identify, passes through cable transmission to image segmentation system 3.Figure
The image coding information for drawing processing system 5 as segmenting system 3 reduces, and is divided into multiple display images, is connected to leaching
Formula is worn on the driver in the OLED image source in display optical system 2.Now human eye can is by wearing display optical system
System 2 obtains the virtual image being superimposed under peripheral true environment.
While computer export vision signal, also regarding from head tracking and attitude detection system is received continuous
Frequency signal and sensor signal, head position and attitude information are obtained with this.
Picture signal is drawn the image of 2000X1200 resolution ratio by computer display card, and 2 are split as by segmenting system 3
The image of 1000x1200 resolution ratio.By the combining structure of Fresnel Lenses and non-spherical lens, aberration correction is realized.Pass through
Image co-registration realizes that big visual field immersion is shown.The effect being finally reached is：Simple eye visual field is more than 120 degree, and eyes visual field is big
In 150 degree, lap is more than 90 degree.
Immersive VR display methods comprises the following steps：
1) peripheral environment real scene image is obtained；Specifically include：Base is used as by the use of full-view camera shooting peripheral environment panorama
Bottom, it is superimposed shoots obtained peripheral environment image using regular camera on this substrate；
2) the peripheral environment real scene image is superimposed to the vision signal for obtaining actual play with virtual video image；
3) vision signal of the actual play is split, and shown on more displays；
4) analysis is carried out to the peripheral environment real scene image and obtains position and attitude information；
5) virtual video image is adjusted by the position and attitude information makes itself and the peripheral environment outdoor scene
Image is merged.
Claims (8)
- A kind of 1. immersive VR head-wearing display device, it is characterised in that：Including head tracking and attitude detection system, wear display optical system, image segmentation system, coding and solution code system with And processing system；The head tracking will with solution code system with image of the attitude detection system for shooting human eye peripheral environment, the coding The tracking passes through with being transferred to the processing system after the picture signal decoding of attitude detection system after processing system is handled For coding with being transferred to described image segmenting system after decoding system coding, image segmentation system splits the image information received Shown after into multiple display images by wearing display optical system.
- 2. immersive VR head-wearing display device according to claim 1, it is characterised in that：Described head tracking is used for the actual photographed of peripheral scene with attitude detection system including being placed in the right and left eyes position of people Outdoor scene image unit, for peripheral scene pan-shot panoramic shooting unit and position and attitude transducer.
- 3. immersive VR head-wearing display device according to claim 1, it is characterised in that：The described two sets of monocular optical systems worn display optical system and include being symmetrically arranged；The monocular optical system includes being successively set on the lens group in front of human eye and being placed on after the lens group Display；The lens group includes at least one set of Fresnel Lenses, and every group of Fresnel Lenses is carved with Fresnel Lenses sawtooth knot by two pieces The resin plate of structure is spliced to form；Described display is two pieces, parallel with corresponding resin plate respectively；Angle β between line of the summit of the stitching portion of two pieces of resin plates to eyeball center and the optical axis perpendicular to eyeball More than 0 °.
- 4. immersive VR head-wearing display device according to claim 3, it is characterised in that：Resin plate described in described two pieces is spliced into L-type；Described lens group includes two groups of Fresnel Lenses of parallel arrangement；It is described that positioned at the display of human eye left front and right front, optical system forms two virtual images of amplification respectively by visual observation There is overlapping region δ in space, in overlapping region δ, the brightness of image of two displays overlapped from display to edge by Gradual change is dark.
- 5. immersive VR head-wearing display device according to claim 4, it is characterised in that：Described each L-type Fresnel Lenses, its each arm form a visual system with optical lens thereafter, and The parameter area of optical system is as follows：Horizontal to be more than 80 ° with vertical field of view, inner side half-angle is 45 °, and overlapping region is 90 °；The visual system of two-arm is combined into a monocular optical system, and its visual field is more than 120 °.
- 6. immersive VR head-wearing display device according to claim 3, it is characterised in that：The described simple eye visual field for wearing display optical system is more than 120 °, and eyes visual field is more than 150 °, and lap is more than 90°。
- 7. a kind of immersive VR display methods, it is characterised in that comprise the following steps：1) peripheral environment real scene image is obtained；2) the peripheral environment real scene image is superimposed to the vision signal for obtaining actual play with virtual video image；3) vision signal of the actual play is split, and shown on more displays；4) analysis is carried out to the peripheral environment real scene image and obtains position and attitude information；5) virtual video image is adjusted by the position and attitude information makes itself and the peripheral environment real scene image Merged.
- 8. immersive VR display methods according to claim 7, it is characterised in that：Step 1) includes：Peripheral environment panorama, which is shot, by the use of full-view camera utilizes routine as substrate, on this substrate superposition Camera shoots obtained peripheral environment image.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786863.XA CN107462994A (en) | 2017-09-04 | 2017-09-04 | Immersive VR head-wearing display device and immersive VR display methods |
| PCT/CN2017/114192 WO2019041614A1 (en) | 2017-09-04 | 2017-12-01 | Head-mounted immersive virtual reality display device and immersive virtual reality display method |
Applications Claiming Priority (1)
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| CN201710786863.XA CN107462994A (en) | 2017-09-04 | 2017-09-04 | Immersive VR head-wearing display device and immersive VR display methods |
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| WO (1) | WO2019041614A1 (en) |
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