CN110275304A - A kind of XR aobvious and the adjustment XR aobvious middle visual fields for playing image method - Google Patents
A kind of XR aobvious and the adjustment XR aobvious middle visual fields for playing image method Download PDFInfo
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- CN110275304A CN110275304A CN201910519461.2A CN201910519461A CN110275304A CN 110275304 A CN110275304 A CN 110275304A CN 201910519461 A CN201910519461 A CN 201910519461A CN 110275304 A CN110275304 A CN 110275304A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
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- G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
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- G—PHYSICS
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- 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
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- G02B27/0172—Head mounted characterised by optical features
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Abstract
The invention discloses a kind of XR aobvious and the adjustment XR aobvious middle visual fields for playing image methods, show in ontology in head, Eye-controlling focus unit, including photoreceptor is arranged, capture the reflection light returned from the ocular reflex of user, generation ray plot；Further include recognition unit and control unit, is respectively used to the eyeball fixes direction of identification user, and according to the visual field for playing image in the eyeball fixes direction controlling adjustment display screen identified.By the way that Eye-controlling focus unit is arranged, eyeball fixes direction is identified in real time and tracking, and according to the visual field for playing image in the eyeball fixes direction controlling adjustment display screen identified, more adapt to field of view of the human eye in real world, always only have the visual field near eyeball fixes direction to be only clearest, and the visual field in other directions then Relative Fuzzy or even is ignored.VR head of the invention is aobvious, closer to the experience of people's daily life, brings the stronger sense of reality to virtual reality, and reduce the requirement to processor.
Description
Technical field
The present invention relates to field of virtual reality more particularly to a kind of XR aobvious and adjustment XR aobvious middle visual fields for playing image
Method.
Background technique
Currently, head-mounted display apparatus (VR aobvious equipment, the VR headset) technology of virtual reality flourishes, from VR
(Virtual Reality, virtual reality), AR (Augmented Reality, augmented reality) Xiang Ronghe the two, can
Bring MR (Mix Reality, mixed reality) and XR (Extra Reality, extension reality) technology of people's immersion experience
Transition.
Wherein, VR technology brings user into entirely virtual environment from real world, and AR technology be then it is partly true,
Digital object, such as information, image and sound are superimposed upon on real world, so that user experiences digital world and true generation
The connection on boundary.MR is the equal of the upgrading of AR technology, including augmented reality and the virtual two parts of enhancing, can merge existing real and imaginary
Intend the world and generates new visual environment.In MR, real physics and digital object are coexisted, and can be with real-time interactive.
XR has then further developed MR technology, by vision, the sense of hearing or even smell and tactile, waits signals, builds one kind
The impression of complete immersion.I.e. after the final development of XR technology, user will be unable to distinguish by the physical sensation of body
Virtual and reality.Specific to visually, require first head show equipment in image closer to human eye in real world
Field of view.And human eye is when being look at some environment, always only some visual field, the front visual field of sight, i.e. sight are closed
The visual field on direction is infused, for clearly, and the visual field of other parts then Relative Fuzzy.It can reach this requires head shows equipment also
Same effect, i.e. head show the case where equipment first has to measure simultaneously tracker's Rotation of eyeball, calculate eyeball fixes direction
On vector angle, further according to eyeball fixes direction adjust display picture details.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of XR it is aobvious and adjustment XR show in broadcast
The method for putting the visual field of image.
Technical scheme is as follows:
Aobvious the invention discloses a kind of XR, preferably a kind of traceable eyeball pays close attention to direction and pays close attention to direction according to eyeball
The XR head for adjusting the visual field of played image is aobvious, including head shows ontology, and the head shows the mirror that ontology includes face user's human eye
The display screen of head and face camera lens, the aobvious ontology of the head are internally provided with Eye-controlling focus unit, the Eye-controlling focus unit packet
Photoreceptor is included, the photoreceptor is used to capture the light returned from the ocular reflex of user, generates ray plot；
The Eye-controlling focus unit further includes recognition unit and control unit, recognition unit user for identification
Eyeball fixes direction；Described control unit is used to be adjusted according to the eyeball fixes direction controlling identified and play on the display screen
The visual field of image.
Preferably, the ray plot includes at least the pupil spot and cornea speck of user.
Preferably, it further includes distance measuring structure that described XR aobvious, the side that the camera lens faces human eye is set to, for measuring
From the eyeball of user to distance of camera lens.
It is highly preferred that the distance measuring structure is ultrasonic distance-measuring sensor or millimetre-wave radar sensor.
In an advantageous embodiment, the recognition unit specifically includes: pupil center's positioning unit, in the light
The pupil center for positioning each eyeball is calculated on line chart；Cornea speck positioning unit, for calculating positioning on the ray plot
The cornea speck of each eyeball；Cornea vector generation unit, for generating in each eyeball from pupil center to cornea speck
Cornea vector, including vector size and direction vector；And eyeball fixes direction generation unit, it is used for the cornea vector and eye
Ball to display screen distance press Vector modulation, generate the eyeball fixes direction, wherein the eyeball to display screen distance be equal to from
The eyeball of user adds the distance of the camera lens to display screen to the distance of camera lens.
In a kind of preferred embodiment, pupil center's positioning unit is specifically included: eyeball Boundary Recognition unit:
For identifying the boundary of black and white eyeball on the ray plot；Black eye ball center computing unit: for calculating the center of black eye ball.
The invention also discloses the methods for the visual field that image is played in a kind of XR aobvious display screen of adjustment, comprising: a. is provided
XR aobvious, and XR aobvious to be internally provided with Eye-controlling focus unit, and the Eye-controlling focus unit includes photoreceptor, the photoreceptor capture
Ocular reflex light simultaneously generates ray plot；
B. according to the ray plot, in conjunction with eyeball to display screen distance vector, eyeball fixes direction described in Vector modulation；
C. the clear of visual field each section that image is played in XR aobvious display screen is adjusted according to the eyeball fixes direction controlling
Clear degree.
Preferably, it shows and is shown for the XR head in the traceable eyeball fixes direction of the present invention for described XR.
Preferably, the step b is specifically included:
B1. positioning pupil center is calculated on the ray plot；
B2. positioning cornea speck is calculated on the ray plot；
B3. according to calculated pupil center and cornea speck, the cornea vector from pupil center to cornea speck is generated；
B4. after the cornea vector is synthesized with eyeball to display screen distance vector, the eyeball fixes direction is generated.
It is highly preferred that the step b1 is specifically included:
B11. the boundary of black eye ball and white of the eye is identified on the ray plot；
B12. the center of circle of black eye ball is calculated；
The center of circle of the black eye ball is pupil center.
Preferably, the display screen is divided into two parts, and two parts are with the intersection point in the eyeball fixes direction and display screen
Be for the center of circle, with 1st/20th of display screen length radius make circle be boundary, the step c is specifically included:
Increase the clarity of the broadcasting pictures on the display screen in the circle；
Reduce the clarity of the broadcasting pictures on the display screen outside the circle.
The invention discloses a kind of XR it is aobvious and adjustment XR it is aobvious in play image visual field methods, include camera lens with
The head of display screen is shown in ontology, and Eye-controlling focus unit, including photoreceptor is arranged, and the photoreceptor is used to capture the eye from user
The reflection light that ball is reflected back generates ray plot；It is additionally provided with recognition unit and control unit in the Eye-controlling focus unit, point
The not eyeball fixes direction of user for identification, and adjusted in the display screen according to the eyeball fixes direction controlling identified
Play the visual field of image.The present invention is by showing setting Eye-controlling focus unit in ontology in head, to the eyeball of the human eye of face camera lens
Direction of gaze is identified in real time and is tracked, and is adjusted in the display screen according to the eyeball fixes direction controlling identified and played image
Visual field always only have the visual field near eyeball fixes direction to be only to adapt to field of view of the human eye in real world
It is clearest, and the visual field in other directions then Relative Fuzzy or even is ignored.Therefore VR head of the invention is aobvious, it can be closer to people
The experience of daily life brings the stronger sense of reality to virtual reality, and can reduce the requirement to processor.
Detailed description of the invention
Fig. 1 is the aobvious overall structure diagram of XR head of the invention.
Fig. 2 is the structural schematic diagram of a camera lens during XR head of the invention is aobvious.
Fig. 3 is the schematic diagram of photoreceptor ray plot obtained during XR head of the invention is aobvious.
Fig. 4 is the structural schematic diagram of recognition unit during XR head of the invention is aobvious
Fig. 5 is the structural schematic diagram of XR Tou Xianzhong pupil center positioning unit of the invention.
Fig. 6 is the calculating schematic diagram present invention determine that eyeball fixes direction.
Fig. 7 is the method flow diagram that the visual field of image is played in XR aobvious display screen of adjustment of the invention.
Fig. 8 is the flow chart in the generation eyeball fixes direction of the invention.
In figure, 100. aobvious ontologies, 110. camera lenses, 112. reflected lights, 120. display screens, 121. eyeballs to display screen away from
From, 130. refinement portions, 200. Eye-controlling focus units, 220. photoreceptors, 230. recognition units, 231. pupil center's positioning units,
232. cornea speck positioning units, 233. cornea vector generation units, 234. eyeball fixes direction generation units, 235. eyeball sides
Boundary's recognition unit, 236. black eye ball center computing units, 300. pupils, 310. pupil center, 320. cornea specks, 330. corneas
Vector, 331. eyeball fixes directions.
Specific embodiment
The present invention provides a kind of XR methods that is aobvious and adjusting the visual field of broadcasting image in XR aobvious display screen, to make this
The purpose of invention, technical solution and effect are clearer, define, and referring to the drawings and give an actual example to of the invention further detailed
Explanation.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
XR head of the invention is aobvious, and preferably a kind of traceable eyeball pays close attention to direction and pays close attention to direction adjustment according to eyeball and broadcast
The XR head for putting the visual field of image is aobvious, and described XR aobvious can to track eyeball fixes direction, and overall structure is as shown in Figure 1, including head
Aobvious ontology 100, wears the human eye of simultaneously face user.The head shows the medial surface of ontology 100, and the camera lens of face human eye is arranged
110, the camera lens 110 is usually convex lens or the lens group including convex lens.The head shows ontology in the outside for leaving human eye
Face, camera lens 110 described in face, is provided with display screen 120.After wearing, the human eye of user penetrates camera lens 110, watches described aobvious
The picture played in display screen 120.
A distance measuring structure is also set up in showing at XR, the side that the camera lens 110 faces human eye is specifically set to, for surveying
Measure the distance from the eyeball of user to camera lens 110.Specifically, the distance measuring structure is ultrasonic distance-measuring sensor or millimeter wave
Radar sensor, distance that can be smaller than accurately measuring.Measured eyeball is added to the distance of camera lens 110
From camera lens 110 to the distance of display screen 120, this is the factory definite value that the head shows ontology 100, so that it may obtain eyeball extremely
Display screen distance 121, in subsequent eyeball fixes direction calculating.
The inside of ontology 100 is shown in the head, is provided with Eye-controlling focus unit 200, in the present invention, the Eye-controlling focus
Unit 200 determines the specific angle in eyeball fixes direction using corneal reflection method.Specifically, as shown in Fig. 2, the sight chases after
Track unit 200 includes photoreceptor 220, and the photoreceptor 220 is used to capture the reflection light returned from the ocular reflex of user
112, generate ray plot as shown in Figure 3.
The Eye-controlling focus unit further includes recognition unit 230 and control unit, specifically, the recognition unit 230
Structure is as shown in figure 4, include pupil center's positioning unit 231, cornea speck positioning unit 232, direction vector generation unit
233, eyeball fixes direction generation unit 234.The working process is briefly described as follows for it: 231 He of pupil center's positioning unit
The cornea speck positioning unit 232, using image procossing scheduling algorithm, calculates in positioning pupil respectively on the ray plot
Then positioning result is sent into the cornea vector generation unit 233 by the heart 310 and cornea speck 320, generate from pupil center
310 arrive the cornea vector 330 of cornea speck 320, including length and direction, and are sent to eyeball fixes direction generation unit 234,
Ultimately generate eyeball fixes direction 331.
Behind the eyeball fixes direction 331 for calculating user, it is sent to described control unit, and described control unit then connects
By the eyeball fixes direction 331 that simultaneously basis identifies, control adjusts the visual field that image is played in camera lens 110, connects to build
The visual experience of nearly real life.
As shown in figure 5, pupil center's positioning unit 231 specifically includes eyeball Boundary Recognition unit 235 and black eye ball
Center calculation unit 236.Specific work process are as follows: on the ray plot, pass through the eyeball Boundary Recognition unit 235 first
It identifies the boundary of black and white eyeball, then calculates the center of black eye ball by black eye ball center computing unit 236, that is, orient described
The specific location of pupil center 310.And the positioning of the cornea speck 320, then it only needs by simple image procossing
The position of its central point is oriented in identification.
The schematic diagram for the ray plot that the photoreceptor 220 obtains usually needs as shown in figure 3, on the ray plot
Two information, a position for pupil center 310 are obtained, a position for cornea speck 320 needs to obtain pupil
Spot and cornea speck 320.
And from the pupil center 310 to the cornea speck 320, the cornea vector of formation can be used to described in calculating
Eyeball fixes direction.
Specifically, it is necessary first to determine the position of the pupil center 310.This is in the present invention by the light
Line chart carries out image procossing acquisition, i.e., is changed first according to the black and white in figure, determine the boundary of iris and the white of the eye, i.e. black eye
The shape of pearl, then calculate the black-eyed center of circle.The center of circle of the black eye ball is pupil center 310.
The cornea speck 320 is a speck on ray plot, and the angle of human eye is radiated at for the emergent ray 111
It is formed on film, i.e. the first Purkinje image, (the First Purkinje image).It is usually located at the pupil center
310 periphery, it is easy to be read out by software.
By carrying out image procossing to the ray plot, after obtaining the pupil center 310 and the cornea speck 320,
Both connections obtain cornea vector 330, including size and Orientation.By the cornea vector 330 and eyeball to display screen distance
121 press Vector modulation, that is, produce the eyeball fixes direction 331, wherein the eyeball to display screen distance 121 be equal to from
The distance of the eyeball of user to camera lens adds distance of the camera lens to display screen, the specific vector in the eyeball fixes direction
It is as shown in Figure 6 to synthesize schematic diagram.
In one more preferably embodiment, it is contemplated that different user wears the actual conditions of VR glasses, has just worn in user
After upper VR glasses, the positioning training in an eyeball fixes direction 331 can be made first.Specifically: in the different positions of display screen 120
Set and successively show single bright spot, while capturing the eyeball fixes direction of user, and will count counted eyeball fixes direction with
The position of the screen bright spot of the intersection point and display of display screen 120 compares, and to the parameter of calculating process, such as eyeball is extremely
The specific value of display screen distance 121 etc., is corrected.
After obtaining the eyeball fixes direction, the recognition unit outputs this to described control unit, to the display
The display resolution of the display image different piece played on screen 120 is adjusted.Specifically: described control unit increases along institute
The clarity of the broadcasting pictures in eyeball fixes direction is stated, for example, making using the eyeball fixes direction and display screen intersection point as the center of circle
Circle, radius is by experiment, preferably 1st/20th of display screen horizontal pixel point.It is aobvious in circle using the circle as line of demarcation
Show that precision improves, and the display precision outside circle can then reduce, that is, reduce the clarity of the outer broadcasting pictures of circle.So only along institute
Stating a certain range of display image in eyeball fixes direction is high definition, other directions then Relative Fuzzy.In this way, on the one hand building
Identical with real life visual experience improves XR aobvious actual experience senses；On the other hand, it also reduces to processor
Job requirement, reduce XR aobvious production costs.
Therefore, the method that the visual field of image is played in XR aobvious display screen of adjustment disclosed by the invention, such as the flow chart of Fig. 7
It is shown, including at least following three step:
A. provide XR it is aobvious, XR show and are internally provided with Eye-controlling focus unit 200, and the Eye-controlling focus unit 200 includes
Photoreceptor 220, the photoreceptor 220 capture ocular reflex light 112 and generate ray plot；
B. according to the ray plot, in conjunction with eyeball to display screen distance vector, eyeball fixes direction described in Vector modulation
331；
C. visual field each section that image is played in the display screen 120 is adjusted according to the eyeball fixes direction 331 control
Clarity.
Wherein, in step b, the flow chart for calculating the generation eyeball fixes direction is as shown in Figure 8, comprising:
B1. positioning pupil center 310 is calculated on the ray plot；
B2. positioning cornea speck 320 is calculated on the ray plot；
B3. it according to calculated pupil center 310 and cornea speck 320, generates from pupil center 310 to cornea speck
320 cornea vector 330；
B4. after the cornea vector 330 is synthesized with eyeball to display screen distance vector, the eyeball fixes direction is generated
331。
Wherein, in step b1, positioning pupil center 310 is calculated on the ray plot, is further specifically included:
B11. the boundary of black and white eyeball is identified on the ray plot；
B12. the center of black eye ball is calculated；
The center of the black eye ball is pupil center.
In step c, the clarity for playing visual field each section of image in the display screen 120 is adjusted, is specifically included: described
Display screen 120 is divided into two parts, two parts using the intersection point of the eyeball fixes direction 234 and display screen 120 as the center of circle, with aobvious
/ 20th of 120 length of display screen is that radius work circle is boundary, forms refinement portion 130.
C1. increase the clarity of broadcasting pictures of the display screen 120 in the refinement portion 130；
C2. reduce the clarity of broadcasting pictures of the display screen 120 outside the refinement portion 130；
Wherein, step c1 and step c2 can be carried out simultaneously or successively be carried out, the function depending on processor used.
In conclusion the invention discloses a kind of XR aobvious and the adjustment XR aobvious middle visual fields for playing image method,
Head including camera lens 110 and display screen 120 is shown in ontology, and Eye-controlling focus unit 200, including photoreceptor 220 is arranged, described photosensitive
Device 220 is used to capture the reflection light 112 returned from the ocular reflex of user, generates ray plot；In the Eye-controlling focus unit
It is additionally provided with recognition unit and control unit, is respectively used to the eyeball fixes direction 331 of identification user, and according to identifying
The control of eyeball fixes direction 331 adjusts the visual field that image is played in the display screen 120.The present invention is set by showing in ontology in head
Eye-controlling focus unit 200 is set, the identification in real time of eyeball fixes direction 331 and tracking to the human eye of face camera lens 110, and according to knowledge
Not Chu the control of eyeball fixes direction 331 adjust the visual field that image is played in the display screen 120, to adapt to human eye in true generation
Field of view in boundary, i.e. visual field only near eyeball fixes direction are only clearest, and the visual field in other directions then phase
To fuzzy or even be ignored.Therefore VR head of the invention is aobvious, can bring closer to the experience of people's daily life to virtual reality
The stronger sense of reality, and the requirement to processor can be reduced.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of XR aobvious, which is characterized in that show ontology including head, the head shows the camera lens that ontology includes face user's human eye
With the display screen of face camera lens, the aobvious ontology of the head is internally provided with Eye-controlling focus unit, and the Eye-controlling focus unit includes
Photoreceptor, the photoreceptor are used to capture the light returned from the ocular reflex of user, generate ray plot；
The Eye-controlling focus unit further includes recognition unit and control unit, the eyeball of recognition unit user for identification
Direction of gaze；Described control unit, which is used to be adjusted according to the eyeball fixes direction controlling identified, plays image on the display screen
Visual field.
2. XR according to claim 1 is aobvious, which is characterized in that the ray plot include at least user pupil spot and
Cornea speck.
3. XR according to claim 1 aobvious, which is characterized in that it further includes distance measuring structure that described XR aobvious, is set to institute
The side that camera lens faces human eye is stated, for measuring the distance from the eyeball of user to camera lens.
4. XR according to claim 3 aobvious, which is characterized in that the distance measuring structure is ultrasonic distance-measuring sensor or milli
Metre wave radar sensor.
5. XR according to claim 1 is aobvious, which is characterized in that the recognition unit specifically includes:
Pupil center's positioning unit, for calculating the pupil center for positioning each eyeball on the ray plot；
Cornea speck positioning unit, for calculating the cornea speck for positioning each eyeball on the ray plot；
Cornea vector generation unit, for generating in each eyeball from pupil center to the cornea vector of cornea speck, including arrow
Measure size and direction vector；And
Eyeball fixes direction generation unit, for the cornea vector and eyeball to display screen distance vector to be pressed Vector modulation,
Generate the eyeball fixes direction, wherein eyeball, which is equal to display screen distance from the distance of eyeball to the camera lens of user, to be added
The camera lens to display screen distance.
6. XR according to claim 5 is aobvious, which is characterized in that pupil center's positioning unit specifically includes:
Eyeball Boundary Recognition unit: for identifying the boundary of black and white eyeball on the ray plot；
Black eye ball center computing unit: for calculating the center of black eye ball.
7. playing the method for the visual field of image in a kind of XR aobvious display screen of adjustment characterized by comprising
A. provide XR it is aobvious, XR show and are internally provided with Eye-controlling focus unit, and the Eye-controlling focus unit includes photoreceptor, described
Photoreceptor captures ocular reflex light and generates ray plot；
B. according to the ray plot, in conjunction with eyeball to display screen distance vector, eyeball fixes direction described in Vector modulation；
C. the clarity that visual field each section of image is played in XR aobvious display screen is adjusted according to the eyeball fixes direction controlling.
8. playing the method for the visual field of image in XR aobvious display screen of adjustment according to claim 7, which is characterized in that institute
Step b is stated to specifically include:
B1. positioning pupil center is calculated on the ray plot；
B2. positioning cornea speck is calculated on the ray plot；
B3. according to calculated pupil center and cornea speck, the cornea vector from pupil center to cornea speck is generated；
B4. after the cornea Vector modulation eyeball to display screen distance vector, the eyeball fixes direction is generated.
9. playing the method for the visual field of image in XR aobvious display screen of adjustment according to claim 8, which is characterized in that institute
Step b1 is stated to specifically include:
B11. the boundary of black eye ball and white of the eye is identified on the ray plot；
B12. the center of circle of black eye ball is calculated；
The center of circle of the black eye ball is pupil center.
10. playing the method for the visual field of image in XR aobvious display screen of adjustment according to claim 7, which is characterized in that
The display screen is divided into two parts, two parts using the intersection point of the eyeball fixes direction and display screen as the center of circle, with display screen
/ 20th of length is that radius work circle is boundary, and the step c is specifically included: being increased on the display screen in the circle
Broadcasting pictures clarity；
Reduce the clarity of the broadcasting pictures on the display screen outside the circle.
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| CN113138664A (en) * | 2021-03-30 | 2021-07-20 | 青岛小鸟看看科技有限公司 | Eyeball tracking system and method based on light field perception |
| CN114610160A (en) * | 2022-04-25 | 2022-06-10 | 滨州职业学院 | Training virtual reality device is extended to team's quality |
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| CN113138664A (en) * | 2021-03-30 | 2021-07-20 | 青岛小鸟看看科技有限公司 | Eyeball tracking system and method based on light field perception |
| CN114610160A (en) * | 2022-04-25 | 2022-06-10 | 滨州职业学院 | Training virtual reality device is extended to team's quality |
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