CN105892053A - Virtual helmet lens interval adjusting method and device - Google Patents
Virtual helmet lens interval adjusting method and device Download PDFInfo
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- CN105892053A CN105892053A CN201511018299.4A CN201511018299A CN105892053A CN 105892053 A CN105892053 A CN 105892053A CN 201511018299 A CN201511018299 A CN 201511018299A CN 105892053 A CN105892053 A CN 105892053A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 210000001508 eye Anatomy 0.000 claims abstract description 90
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000000007 visual effect Effects 0.000 claims description 4
- 210000001747 pupil Anatomy 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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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
- G02B27/0172—Head mounted characterised by optical features
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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
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
-
- 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
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- Optics & Photonics (AREA)
Abstract
The invention relates to the virtual reality technology and discloses a virtual helmet lens interval adjusting method and device. The method is characterized by shooting human eyes through miniature cameras slantly arranged on lens frames respectively, and carrying out eyeball detection on the obtained human eyes to obtain eyeball positions in human eye images; and adjusting the positions of the lenses according to the obtained eyeball positions until the human eyes are overlapped with the center positions of the lenses respectively. The interval between the two lenses of a virtual helmet is allowed to be adjusted automatically according to the pupil distance of a user, so that the virtual helmet can be adaptive to pupil widths of different users automatically in the using process, and a best use experience is provided for the user.
Description
Technical field
The present invention relates to virtual reality technology, particularly to the tune of two lenticular spacings in a kind of virtual helmet
Joint method.
Background technology
The virtual helmet is that the right and left eyes utilizing people obtains information gap, guides user to produce a kind of in virtual
A kind of Helmet-Mounted Display of the sensation in environment.Its displaying principle is that right and left eyes screen shows a left side respectively
The image of right eye, human eye produces third dimension after obtaining the discrepant information of this band in brain.
The principle of the virtual helmet is to be amplified by optical system by image produced by small two-dimension display.
Specifically, the light that miniscope is launched makes image similar remote because refraction produces through convex lens
Fang Xiaoguo.Utilize this effect near objects to be amplified at a distance to view and admire and reach so-called full figure vision
(Hologram).Liquid crystal display (is used small-sized cathode ray tube in early days, has been applied Organic Electricity
Electroluminescent display part) image by an eccentric free-form surface lens, make image become similar big silver
Curtain picture.Owing to eccentric free-form surface lens is a skewed concave lens, the most optically it is not the most
It is singly lens function, has the most become scope of freedom prism.When the image produced enters eccentric free form surface
Prism facets, then be all-trans and be incident upon observer's eyes oncoming lane concave surface minute surface.Side concave mirror topcoating has one layer of minute surface
Coating, reflection light simultaneously is again exaggerated and reflexes to eccentric free curved surface prism face, and makes corrections in this face
Ray obliquity, arrives observer's eyes.
Ideally, the center of the pupil center of two eyes and lens is both horizontally and vertically
When matching, user can obtain optimal viewing effect, as shown in Figure 1.And in reality, due to
There are differences in the horizontal pupil spacing of eyes between men, thus lenticular spacing is required to adjust
Joint, thus meet the use requirement of different user.
The mode of existing regulative mode the most manually regulation, and user is it is generally required to repeatedly regulate, often
Try by wearing the virtual helmet after secondary regulation, thus judge that the spacing of lens is the most suitable, this
Mode of operation is loaded down with trivial details, complicated.And for general user, it is difficult to judge the accuracy of spacing, be difficult to true
Just make two lens accurately mate with the pupil of user, have impact on the viewing effect of user.More even, portion
Demultiplexing family or the user just used time, can be the most adjusted and straight due to the complexity of this control method
Connecing and gather together use, this will seriously reduce the comfort level of user, thus affects the experience sense of user.
Summary of the invention
It is an object of the invention to provide lenticular spacing control method and the device thereof of a kind of virtual helmet, make
Two lenticular spacings obtained in the virtual helmet can be automatically adjusted according to the interpupillary distance of user, thus makes user
During with, it is possible to automatically adapt to the pupil width of different user, it is provided that to the use impression that user is optimal.
For solving above-mentioned technical problem, embodiments of the present invention provide between the lens of a kind of virtual helmet
Away from control method, comprise the steps of
Utilize and tilt the micro-camera shooting human eye being installed on lens frame；
The eye image of micro-camera shooting is carried out eyeball detection, obtains the eyeball position in eye image
Put；
According to the eyeball position obtained, adjust lens position, until human eye overlaps with the center of lens.
Embodiments of the present invention additionally provide the lenticular spacing adjusting means of a kind of virtual helmet, comprise:
Tilt to be installed on the micro-camera on lens frame, be used for shooting human eye；
Image detection module, for the eye image of micro-camera shooting is carried out eyeball detection, obtains people
Eyeball position in eye pattern picture；
Control device, for according to the eyeball position obtained, adjust lens position, until human eye is with described
The center of lens overlaps.
In terms of existing technologies, it is micro-that utilization inclination is installed on lens frame embodiment of the present invention
Type camera shooting human eye, carries out eyeball detection to the eye image of shooting, obtains the eyeball in eye image
Position, according to the eyeball position obtained, adjusts lens position, until human eye is heavy with the center of lens
Close.The eyeball position utilizing eye image detects, and automatically carries out whole adjustment process so that two lens
Spacing can adapt to the pupil width of different user automatically, completely without human intervention, thus avoids
Manually regulate the complexity of lenticular spacing.And by the detection of eyeball position can be obtained the most accurately
Data, thus ensure that the accuracy that lenticular spacing regulates, it is provided that to the use impression that user is optimal.
It addition, micro-camera is installed on the upper side frame of described lens or the center of lower frame；
According to the eyeball position obtained, adjust lens position, until described human eye and the center of described lens
In the step that position overlaps, if described in the center weight of the eyeball position that obtains and described eye image
Close, then judge that described lens position has adjusted.
Micro-camera is arranged on the center of upper and lower side frame, it is ensured that the centre bit of the eye image photographed
Put the center with lens to coincide, so convenient calculating eyeball position and and the deviation of lens centre distance
Distance and bias direction so that by judging whether eyeball position overlaps with the center of eye image,
Can judge whether to complete the adjustment of lens position, improve efficiency that lenticular spacing is automatically adjusted and
Accuracy.
It addition, according to the eyeball position calculated and the offset distance of the center of eye image and deviation
Direction, obtains the adjustment direction of lens and adjusts distance, thus adjusting lens to target location.Pass through
Calculating offset distance and the bias direction of the center of eyeball position and eye image, obtain is the brightest
True data, compare more manually regulation lenticular spacing time with user feel operate, substantially increase
The accuracy of regulation.
It addition, in the step adjusting lens position, right lenses is carried out by independent control device respectively
The adjustment of position.Control the lens on both sides respectively by controlling device so that it is the most to the left or to
Move right, until meeting the condition of coincideing.Make in the case of right and left eyes is asymmetric, also can realize lens
Accurate with user's pupil mates, and makes the performance of the virtual helmet reach best, can meet special user's
Use demand, substantially increases the competitiveness of product.
Accompanying drawing explanation
Lens and the position view of user's pupil when Fig. 1 is to obtain optimal viewing effect in prior art；
Fig. 2 is the lenticular spacing control method flow chart of the virtual helmet according to the first embodiment；
Fig. 3 is the position view that in the first embodiment, micro-camera is respectively arranged on two lens；
Fig. 4 is that in the first embodiment, two eye pupil positions show with lens centre adjustment time misaligned
It is intended to；
Fig. 5 is the lenticular spacing control method flow chart of the virtual helmet according to the second embodiment；
Fig. 6 is the self-checking device schematic diagram of the lenticular spacing according to the 4th embodiment.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this
Bright each embodiment is explained in detail.But, it will be understood by those skilled in the art that
In each embodiment of the present invention, propose many technology to make reader be more fully understood that the application thin
Joint.But, even if there is no these ins and outs and many variations based on following embodiment and amendment,
The application each claim technical scheme required for protection can also be realized.
First embodiment of the present invention relates to the lenticular spacing control method of a kind of virtual helmet, specifically flows
Journey is as shown in Figure 2.
In step 201, the micro-camera shooting human eye that inclination is installed on lens frame is utilized.Specifically
Ground is said, in the present embodiment, needs to install on lens frame in advance the Miniature phase for shooting human eye
Machine.Such as, in advance two micro-cameras are tilted to be installed on two lens upper side frames or lower frame respectively
Center on, as shown in Figure 3.Installed by inclination, to guarantee to photograph human eye.It addition,
The center that micro-camera is separately mounted to upper side frame or lower frame can ensure that the people's eye pattern photographed
The center of picture and the center of lens coincide, so convenient calculating eyeball position and position, lens centre
The offset distance put and bias direction, improve efficiency and accuracy that lenticular spacing is automatically adjusted.Micro-
The gradient that type camera is installed is relevant to the angle of visual field of this micro-camera, and the angle of visual field is the biggest, and gradient is the least.
Additionally, it is appreciated that the distance dependent that the gradient of micro-camera installation is also and between camera and human eye,
Distance is the biggest, and gradient is the least.
In this step, utilize micro-camera shooting to obtain eye image, during shooting, require that user keeps eye
Ball, according to normal mode viewing front screen, i.e. look straight ahead, is not looked side ways.Can ensure that the human eye photographed
The center of position and eye image in the same horizontal line, such that it is able to judge human eye position very easily
Put and whether match with the horizontal centre of imaging, be also convenient for the centre bit calculating eyeball position with eye image
The bias direction put and offset distance.
In step 202., eye image is carried out eyeball detection and obtains eyeball position.Utilize existing figure
As detection technique, the detection of eyeball position in image can be realized, do not repeat them here.
In step 203, bias direction and the deviation of the center of eyeball position and eye image are calculated
Distance, as adjustment direction and the adjustment distance of lens.Specifically, due to position of human eye and people's eye pattern
The center of picture in the same horizontal line, so bias direction here is the most to the left and two kinds to the right.
Such as, the eyeball position left side in the center of eye image detected, then explanation need by lens to
Move left；If be detected that eyeball position is on the right of the center of eye image, then explanation need by
Lens move right.
In step 204, it is judged that whether offset distance is zero.Specifically, if offset distance is zero,
Illustrating that the center of position of human eye and eye image overlaps, the most virtual helmet has reached most preferably to use
Effect, then lenticular spacing adjustment process terminates.If it is judged that be no, eyeball position and lens are described
Centre bit be equipped with deviation, then enter step 205 lens are adjusted.
In step 205, according to the adjustment direction obtained in step 204 and adjustment distance, lens are entered
Row sum-equal matrix, makes position of human eye overlap with the center of lens.Specifically, when two eyes being detected
Interpupillary distance and lenticular spacing inconsistent time, available microelectromechanicdevices devices is according to the adjustment direction calculated
With the position that distance is automatically adjusted two lens so that it is move the most to the left or to the right, until meeting
The condition of coincideing.Such as, if be detected that eyeball position is on the left side of the center of eye image, then
Utilize the microelectromechanicdevices devices control to lens, make lens be moved to the left to eyeball position and overlap, in like manner,
If be detected that eyeball position is on the right of the center of eye image, then utilize microelectromechanicdevices devices to thoroughly
The control of mirror, makes lens move right to eyeball position and overlaps, as shown in Figure 4.
In the present embodiment, after user wears virtual implementing helmet, press by clicking on the outside of the helmet
Button, or select the lenticular spacing automatic regulation function in function menu, i.e. automatically starting lenticular spacing
Automatic adjusument such that it is able to automatically adapt to the pupil spacing of different user, make user obtain optimal viewing
Effect.
Being not difficult to find out, present embodiment utilizes the eyeball position of eye image to detect, and automatically carries out whole tune
It has suffered journey so that two lenticular spacings can adapt to the pupil width of different user automatically, completely without
Human intervention, thus avoid the complexity manually regulating lenticular spacing.And by eyeball position
Detection can obtain data the most accurately, thus ensure that the accuracy that lenticular spacing regulates, it is provided that gives and uses
The use impression that family is optimal.And, use the lenticular spacing control method of present embodiment, simple to operate,
And be easily achieved, cost is relatively low.
In addition, it is necessary to explanation, in the present embodiment, it is contemplated that convenience of calculation, in advance by two
Micro-camera tilts to be installed on the center of two lens upper side frames or lower frame respectively.Certainly, real
Border operation can not also be contained in center, in this case it is necessary to first calculate micro-camera
Installation site and lens frame center departure in the horizontal direction and bias direction (i.e. shoot
The departure of the center of image and position, lens centre and bias direction), in conjunction with the human eye of shooting
The detection of the eyeball position of image, is adjusted lens position, makes position, lens centre and eyeball position
Overlap.
Second embodiment of the present invention relates to the lenticular spacing control method of a kind of virtual helmet.Second is real
Execute mode roughly the same with the first embodiment, differ primarily in that: in the first embodiment, control
Lens are adjusted by device according to adjustment direction and adjustment distance, the most generally can once be adjusted in place.
And in the present embodiment, for adjusting the control device (such as microelectromechanicdevices devices) of lens position according to tune
Perfect square to, with default step-length adjust lens distance, idiographic flow as shown in Figure 5:
Step 201-202 in step 501-502 and the first embodiment is the same, does not repeats them here.
In step 503, calculate the bias direction of eyeball position and the center of eye image, as
The adjustment direction of lens.Specifically, owing to the center of position of human eye and eye image is at same water
On horizontal line, so bias direction here only has the most to the left and two kinds to the right.
In step 504, according to adjustment direction, lens distance is adjusted with default step-length.Specifically,
Here default step-length is fixed step size set in advance in the virtual helmet, as 0.1mm, certainly, uses
The needs of Adjustment precision can also be configured on the virtual helmet by family according to individual.In present embodiment
Bias direction have to the left or two kinds to the right, if be detected that eyeball position is at the centre bit of eye image
The left side put, then control lens by microelectromechanicdevices devices and be moved to the left default step-length.In like manner, if detected
To eyeball position on the right of the center of eye image, then control lens to the right by microelectromechanicdevices devices
Mobile default step-length.
In step 505, again shoot human eye, obtain eye image.This step and the first embodiment
In step 201 identical, do not repeat them here.
In step 506, it is judged that whether eyeball position overlaps with the center of eye image.Specifically
Say, obtaining eyeball position by eye image being carried out eyeball detection, calculating eyeball position and eye image
The bias direction of center and offset distance, judge whether both overlap.If it is judged that be
Be to illustrate that the virtual helmet has reached optimal using effect, then lenticular spacing adjusts and terminates.If it is determined that
Result is no, illustrates that the centre bit of eyeball position and lens is equipped with deviation, then return to step 505 continue with
Preset step-length and adjust lens distance.
Present embodiments provide for the specific implementation of another kind of regulation lens position so that the present invention's
Embodiment can be flexible and changeable realization, thus there is wider application scene.
Third embodiment of the invention relates to the lenticular spacing control method of a kind of virtual helmet, this embodiment party
Formula has done further improvement on the basis of the first embodiment, mainly thes improvement is that: this embodiment party
Formula is in the step adjusting lens position, and right lenses is carried out the tune of position by the independent device that controls respectively
Whole.Left control microelectromechanicdevices devices is for carrying out position adjustment to left lens, and right control microelectromechanicdevices devices is used for
Right lens are carried out position adjustment.
In view of the asymmetric situation of certain customers' right and left eyes likely occurs, therefore right lenses respectively by
The independent device that controls carries out the adjustment of position so that in the case of right and left eyes is asymmetric, also can realize
Lens accurately mate with user's pupil, make the performance of the virtual helmet reach best, can meet special use
The use demand at family, substantially increases the competitiveness of product.
The step of the most various methods divides, and is intended merely to describe clear, it is achieved time can merge into one
Step or split some step, is decomposed into multiple step, as long as comprising identical logical relation,
All in the protection domain of this patent；To adding inessential amendment in algorithm or in flow process or drawing
Enter inessential design, but do not change the core design of its algorithm and flow process all at the protection model of this patent
In enclosing.
Four embodiment of the invention relates to the lenticular spacing adjusting means of a kind of virtual helmet, such as Fig. 6 institute
Show, comprise:
Tilt to be installed on the micro-camera on lens frame, be used for shooting human eye.
Micro-camera is installed on the upper side frame of lens or the center of lower frame.
Image detection module, for the eye image of micro-camera shooting is carried out eyeball detection, obtains people
Eyeball position in eye pattern picture.
Control device, for according to the eyeball position obtained, adjust lens position, until human eye is with described
The center of lens overlaps.
Wherein, control device and also comprise the left control microcomputer Denso for left lens being carried out position adjustment
Put, and for right lens being carried out the right control microelectromechanicdevices devices of position adjustment.
It is seen that, present embodiment is the system embodiment corresponding with the first embodiment, this enforcement
Mode can be worked in coordination enforcement with the first embodiment.The relevant technical details mentioned in first embodiment
The most effective, in order to reduce repetition, repeat no more here.Correspondingly, this enforcement
The relevant technical details mentioned in mode is also applicable in the first embodiment.
It is noted that each module involved in present embodiment is logic module, in reality
In application, a logical block can be a physical location, it is also possible to be one of a physical location
Point, it is also possible to realize with the combination of multiple physical locations.Additionally, for the innovative part highlighting the present invention,
Not by the unit the closest with solving technical problem relation proposed by the invention in present embodiment
Introduce, but this is not intended that in present embodiment the unit that there is not other.
It will be understood by those skilled in the art that the respective embodiments described above are realize the present invention concrete
Embodiment, and in actual applications, can to it, various changes can be made in the form and details, and the most inclined
From the spirit and scope of the present invention.
Claims (10)
1. the lenticular spacing control method of a virtual helmet, it is characterised in that comprise the steps of
Utilize and tilt the micro-camera shooting human eye being installed on lens frame；
The eye image shooting described micro-camera carries out eyeball detection, obtains in described eye image
Eyeball position；
According to the described eyeball position obtained, adjust lens position, until described human eye and described lens
Center overlaps.
The lenticular spacing control method of the virtual helmet the most according to claim 1, it is characterised in that
Described micro-camera is installed on the upper side frame of described lens or the center of lower frame；
The eyeball position that described basis obtains, adjusts lens position, until described human eye and described lens
In the step that center overlaps, if described in the centre bit of the eyeball position that obtains and described eye image
Put coincidence, then judge that described lens position has adjusted.
The lenticular spacing control method of the virtual helmet the most according to claim 2, it is characterised in that
The eyeball position that described basis obtains, adjusts lens position, until described human eye and the center of described lens
In the step that position overlaps, comprise following sub-step:
Calculate offset distance and the bias direction of the center of described eyeball position and described eye image；
According to the described offset distance calculated and bias direction, obtain adjustment direction and the adjustment of described lens
Distance；
According to described adjustment direction and adjustment distance, described lens are adjusted to target location.
The lenticular spacing control method of the virtual helmet the most according to claim 2, it is characterised in that
The eyeball position that described basis obtains, adjusts lens position, until described human eye and the center of described lens
In the step that position overlaps, comprise following sub-step:
Obtain the bias direction of described eyeball position and the center of described eye image；
According to described bias direction, adjust described lens with default step-length；
Re-use micro-camera shooting human eye, if the eyeball position retrieved and described eye image
Center misaligned, then continue to adjust described lens, until the eyeball position obtained with default step-length
Overlap with the center of described eye image.
The lenticular spacing control method of the virtual helmet the most according to claim 1, it is characterised in that
In the step of described adjustment lens position, right lenses is carried out position by the independent device that controls respectively
Adjust.
The lenticular spacing control method of the virtual helmet the most according to any one of claim 1 to 5,
It is characterized in that, in the step of described adjustment lens position, described lens are adjusted along horizontal level
Whole.
7. the lenticular spacing adjusting means of a virtual helmet, it is characterised in that comprise:
Tilt to be installed on the micro-camera on lens frame, be used for shooting human eye；
Image detection module, carries out eyeball detection for the eye image shooting described micro-camera,
Eyeball position in described eye image；
Control device, for the eyeball position obtained described in basis, adjust lens position, until described people
Eye overlaps with the center of described lens.
The lenticular spacing adjusting means of the virtual helmet the most according to claim 7, it is characterised in that
Described micro-camera is installed on the upper side frame of described lens or the center of lower frame.
The lenticular spacing adjusting means of the virtual helmet the most according to claim 7, it is characterised in that
Described control device comprises:
For left lens being carried out the left control microelectromechanicdevices devices of position adjustment, with for right lens are carried out
The right control microelectromechanicdevices devices of position adjustment；
Described left control microelectromechanicdevices devices is separate with described right control microelectromechanicdevices devices.
10. according to the lenticular spacing adjusting means of the virtual helmet according to any one of claim 7 to 9,
It is characterized in that,
The gradient that described micro-camera is installed is relevant to the angle of visual field of this micro-camera；
Wherein, the described angle of visual field is the biggest, and described gradient is the least.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018299.4A CN105892053A (en) | 2015-12-30 | 2015-12-30 | Virtual helmet lens interval adjusting method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018299.4A CN105892053A (en) | 2015-12-30 | 2015-12-30 | Virtual helmet lens interval adjusting method and device |
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| CN105892053A true CN105892053A (en) | 2016-08-24 |
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| CN201511018299.4A Pending CN105892053A (en) | 2015-12-30 | 2015-12-30 | Virtual helmet lens interval adjusting method and device |
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| CN111623751A (en) * | 2020-05-31 | 2020-09-04 | 张冬梅 | System for identifying the inclination of a visor and corresponding terminal |
| CN111970502A (en) * | 2020-08-28 | 2020-11-20 | 国网安徽省电力有限公司淮南供电公司 | Humanoid binocular follow-up virtual reality system suitable for teleoperation of robot |
| CN114511655A (en) * | 2022-02-16 | 2022-05-17 | 深圳市恒必达电子科技有限公司 | Take VR AR of smell reproduction to feel device and smell formation system |
| WO2024198043A1 (en) * | 2023-03-31 | 2024-10-03 | 瑞声开泰声学科技(上海)有限公司 | Interpupillary distance automatic adjustment apparatus and method |
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