CN108776003B - A kind of detection method of VR equipment - Google Patents
A kind of detection method of VR equipment Download PDFInfo
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- CN108776003B CN108776003B CN201810589521.3A CN201810589521A CN108776003B CN 108776003 B CN108776003 B CN 108776003B CN 201810589521 A CN201810589521 A CN 201810589521A CN 108776003 B CN108776003 B CN 108776003B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses a kind of detection method of VR equipment, VR equipment includes two lens barrels, and a Fresnel Lenses is arranged on each lens barrel；When detection, display screen is set in the side of two lens barrels, capture apparatus is set in the other side of two lens barrels, capture apparatus is configured as shooting the image projected by display screen through Fresnel Lenses；One reference line is set between two lens barrels；Display screen projects image to the direction of two Fresnel Lenses, so that two Fresnel Lenses is generated ring-shaped stripe hot spot respectively by the image that display screen projects；Two Fresnel Lenses are shot with capture apparatus, there are two groups of concentric ring-shaped stripe hot spots on the image of acquisition, mark center is distinguished on two groups of ring-shaped stripe hot spots, two centers are connected to form central line of lens；According to the angle of central line of lens and reference line, the deflection angle of two Fresnel Lenses and lens barrel is determined.Detection method of the invention can accurately detect the pattern of screen display with the presence or absence of deflection.
Description
Technical field
The present invention relates to VR technical field, in particular to a kind of detection method of VR equipment.
Background technique
In recent years, VR technology is quickly grown, and many VR products are developed and put into market.VR(Virtual
Reality, virtual reality) technology is a kind of computer simulation system that can be created with the experiencing virtual world, it is using calculating
Machine generates a kind of simulated environment, is a kind of Multi-source Information Fusion, the system of interactive Three-Dimensional Dynamic what comes into a driver's and entity behavior
Emulation, it can allow user seemingly on the spot in person, therefore more and more extensive be accepted.
Existing VR equipment is mostly headset equipment, and user is worn on head when in use, its corresponding eye come
Realize function.In user experience VR product, in order to make user obtain good VR immersive effects and visual experience it is necessary to making to show
Shown image zero deflection in display screen is whether directly to detect the image that is formed on a display screen to this existing detection method
There is the phenomenon that deflection, but the result detected in this way is inaccurate, it cannot be guaranteed that user can obtain well when using VR product
VR immersive effects and visual experience.In fact, deflection whether should be generated relative to lens barrel (eyecup) for display screen, with
And lens (Lens) are tested relative to whether lens barrel (eyecup) generates deflection, can just obtain accurately testing knot in this way
Fruit, however the still not no mature scheme in current VR test.Therefore, it is highly desirable to develop new VR display detection skill
Art.
Summary of the invention
The purpose of the present invention is to provide a kind of new solutions of VR equipment detection.
According to the first aspect of the invention, a kind of detection method of VR equipment is provided, VR equipment includes two lens barrels,
One Fresnel Lenses is set on each lens barrel；When detection: display screen being set in the side of two lens barrels, in two lens barrels
Capture apparatus is arranged in the other side, and the capture apparatus is configured as being projected through Fresnel Lenses shooting by the display screen
Image out；
One reference line is set between two lens barrels；
Display screen projects image to the direction of two Fresnel Lenses, makes two Fresnels by the image that display screen projects
Lens generate ring-shaped stripe hot spot respectively；
Two Fresnel Lenses are shot with capture apparatus, there are two groups of concentric ring-shaped stripe light on the image of acquisition
Spot distinguishes mark center on two groups of ring-shaped stripe hot spots, two centers is connected to form central line of lens；
According to the angle of the central line of lens and the reference line, described two Fresnel Lenses and the lens barrel are determined
Deflection angle.
Optionally, when between the central line of lens and the reference line in the angle of setting, then described two Fresnels
Lens and the lens barrel zero deflection.
Optionally, the reference line is the symmetry axis of two lens barrels.
Optionally, above-mentioned detection method further include:
The display screen center line for crossing display screen center is projected on the display screen；
The display screen projects image to the direction of two Fresnel Lenses, makes every group of ring by the image that display screen projects
A display screen center line is formed on shape striped hot spot；
Display screen is shot through two Fresnel Lenses with capture apparatus, obtains two groups of images, every group of image includes annular
Striped hot spot and a display screen center line on ring-shaped stripe hot spot connect two display screen center lines, form one
Item screen is online；
According to the online angle with the reference line of the screen, the deflection angle of the display screen and the lens barrel is determined.
Optionally, the screen is online is overlapped with the central line of lens.
Optionally, the screen is online when with the reference line being in scheduled angle, then the display screen and the lens barrel without
Deflection.
Optionally, before being detected, the capture apparatus is demarcated using Zhang Shi standardization, utilizes calibrating parameters
Correct the distortion of the capture apparatus.
Optionally, before shooting described two Fresnel Lenses with the capture apparatus, figure is shown on the display screen
Card.
Optionally, the graph card of the display screen display is conducive to eliminate stray light, is made ring-shaped stripe light using green graph card
Spot is clear.
The detection method of VR equipment provided by the invention can be used to detect display screen relative to lens barrel and whether generate polarization,
And whether Fresnel Lenses generates deflection with respect to lens barrel, so that it is determined that whether image generates deflection on a display screen.It can guarantee
The using effect of VR equipment can finally make user obtain good visual experience.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range.It for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the structural schematic diagram of the detection system in detection method provided in an embodiment of the present invention；
Fig. 2 shows the top views of lens barrel in Fig. 1；
Fig. 3 shows the image of two groups of ring-shaped stripe hot spots in detection method provided in an embodiment of the present invention；
Fig. 4 shows acquisition central line of lens O in detection method provided in an embodiment of the present invention1O2When show on a display screen
The schematic diagram of diagram card mode；
Fig. 5 is shown projects a mistake display screen center on a display screen in detection method provided in an embodiment of the present invention
The schematic diagram of display screen center line；
Fig. 6 is shown in detection method provided in an embodiment of the present invention with capture apparatus through two Fresnel Lenses shootings
The schematic diagram of the presented image of display screen；
Fig. 7, which shows handle to the image in Fig. 6, identifies the online P of screen1P2Schematic diagram；
Fig. 8 shows central line of lens O1O2With reference line M1M2Vertically, shield online P1P2With reference line M1M2Vertical signal
Figure.
Part description of symbols.
1. capture apparatus, 2. Fresnel Lenses, 3. display screens, 4. lens barrels.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
A kind of detection method of VR equipment provided by the invention, specifically includes the following steps:
S1, VR equipment include two lens barrels 4, and a Fresnel Lenses 2 is arranged on each lens barrel 4；When being detected
Detection system can be first constructed, as shown in figure 1, display screen 3 is set in the side of two lens barrels 4, in two lens barrels 4
Capture apparatus 1 is arranged in the other side, and the capture apparatus 1 is configured as penetrating what the shooting of Fresnel Lenses 2 was projected by display screen 3
Image.
Shown in S2, reference Fig. 2, a vertical reference line M1M2 is determined by two basic circles between two lens barrels 4.
S3, display screen 3 project image to the direction of two Fresnel Lenses 2, make two by the image that display screen 3 projects
Fresnel Lenses 2 generates ring-shaped stripe hot spot respectively.
S4, two Fresnel Lenses 2 are shot with capture apparatus 1, has two groups of ring-shaped stripe hot spots, reference on the image of acquisition
Shown in Fig. 3, mark center O1, O2 is distinguished on two groups of ring-shaped stripe hot spots, two centers are connected to form a lens centre
Line O1O2.
S5, according to the angle of central line of lens O1O2 and reference line M1M2, determine two Fresnel Lenses 2 and lens barrel 4
Deflection angle；
Wherein, when between central line of lens O1O2 and reference line M1M2 in the angle of setting, then two 2 Hes of Fresnel Lenses
4 zero deflection of lens barrel.
Referring to shown in Fig. 8, if central line of lens O1O2With reference line M1M2Between angle be 90 °, it is determined that two luxuriant and rich with fragrance alunites
That lens 2 and 4 zero deflection of lens barrel.Conversely, if central line of lens O1O2With reference line M1M2Between angle be not equal to 90 °, then may be used
There is deflection with determining two Fresnel Lenses 2 and lens barrel 4, at this time central line of lens O1O2With reference line M1M2Between angle
Degree is the angle of deflection.
The detection method of another kind VR equipment provided by the invention, specifically includes the following steps:
S1, VR equipment include two lens barrels 4, and a Fresnel Lenses 2 is arranged on each lens barrel 4；When being detected,
Detection system is constructed, it is shown referring to Fig.1, display screen 3 is set in the side of two lens barrels 4, is arranged in the other side of two lens barrels 4
Capture apparatus 1, and the capture apparatus 1 is configured as shooting the image projected by display screen 3 through Fresnel Lenses 2.
Shown in S2, reference Fig. 2, a vertical reference line M1M2 is determined by two basic circles between two lens barrels 4.
S3, display screen 3 project image to the direction of two Fresnel Lenses 2, make two by the image that display screen 3 projects
Fresnel Lenses 2 generates ring-shaped stripe hot spot respectively；
S4, two Fresnel Lenses 2 are shot with capture apparatus 1, has two groups of ring-shaped stripe hot spots, reference on the image of acquisition
Shown in Fig. 3, mark center O1, O2 is distinguished on two groups of ring-shaped stripe hot spots, two centers are connected to form a lens centre
Line O1O2；
Shown in S5, reference Fig. 5, Fig. 6 and Fig. 7, the display screen center for crossing display screen center is projected on display screen 3
Line, display screen 3 project image to the direction of two Fresnel Lenses 2, make every group of ring-shaped stripe by the image that display screen 3 projects
A display screen center line is formed on hot spot；Display screen 3 is shot through two Fresnel Lenses 2 with capture apparatus 1, obtains two groups
Image, every group of image include ring-shaped stripe hot spot and a display screen center line on ring-shaped stripe hot spot, and two are shown
Display screen center line connects to form the online P1P2 of screen；
S6, according to the angle of central line of lens O1O2 and reference line M1M2, determine two Fresnel Lenses 2 and lens barrel 4
Deflection angle；Also, according to the angle for shielding online P1P2 and reference line M1M2, determine the deflection angle of display screen 3 and lens barrel 4；
Wherein, when between central line of lens O1O2 and reference line M1M2 in the angle of setting, then two Fresnel Lenses 2
With 4 zero deflection of lens barrel；When shielding the angle between online P1P2 and reference line M1M2 in setting, then display screen 3 and lens barrel 4 are unbiased
Turn.
Wherein, shield online P1P2 to be possible to be overlapped with central line of lens O1O2, it is also possible to not be overlapped.
It is overlapped when shielding online P1P2 with central line of lens O1O2, it is only necessary to which judgement is shielded between online P1P2 and reference line M1M2
Angle, that is, can determine two Fresnel Lenses 2 and whether lens barrel 4 have deflection, while can determine that display screen 3 is with lens barrel 4
It is no to have deflection.
When the online P1P2 of screen is not overlapped with central line of lens O1O2, not only need to judge central line of lens O1O2 and benchmark
Angle between line M1M2 will also judge to shield the angle between online P1P2 and reference line M1M2.Specifically, referring to Fig. 8 institute
Show:
If central line of lens O1O2With reference line M1M2Between angle be 90 °, it is determined that two Fresnel Lenses 2 and mirror
4 zero deflections of cylinder；Conversely, if central line of lens O1O2With reference line M1M2Between angle be not equal to 90 °, then can determine two
Fresnel Lenses 2 and lens barrel 4 have deflection, at this time central line of lens O1O2With reference line M1M2Between angle, as deflect
Angle.
If shielding the angle between online P1P2 and reference line M1M2 is 90 °, it is determined that 4 zero deflection of display screen 3 and lens barrel；Instead
It, if the angle shielded between online P1P2 and reference line M1M2 is not equal to 90 °, it is determined that be to have partially between display screen 3 and lens barrel 4
Turn, shields online P at this time1P2With reference line M1M2Between angle, the angle as deflected.
Wherein, if generating deflection between display screen 3 and lens barrel 4 may be to be caused with lens barrel 4 in assembly due to display screen 3
's.
Wherein, in above-mentioned detection process, capture apparatus 1 can use camera, and make camera when shooting
It distorts small as far as possible.Before being detected, if the distortion of discovery capture apparatus 1 is larger, the method that can use Zhang Shi plane reference
Capture apparatus 1 is demarcated, using calibrating parameters come the distortion of correcting captured equipment 1, capture apparatus 1 is enable to focus two phenanthrene
2 surface of Nie Er lens can take two Fresnel Lenses 2 simultaneously.
Wherein, the lens being arranged on lens barrel 4 are Fresnel Lenses 2.Fresnel Lenses is widely used in VR equipment, is used for
As or composition lenticular unit.The structure of Fresnel Lenses 2 is more special, can be in integrally disc-shaped, on the surface of one side
Upper working surface and substantially parallel and own axes inactive faces with arc.Diameter without circle inactive face is from saturating
The edge of mirror is gradually reduced to the center of circle.Display screen 3 project light from Fresnel Lenses 2 have arc working surface a side to
Fresnel Lenses irradiation.Periodic ring-shaped stripe hot spot can be formed using Fresnel Lenses 2, center is very easy to true
It is fixed, be conducive to be quickly found out central line of lens, detection speed can be improved to a certain extent.
Also, in the detection process in order to obtain clearly periodic ring-shaped stripe hot spot, shot with capture apparatus 1
Before two Fresnel Lenses 2, referring to shown in Fig. 4, graph card can be shown at opposite two sides on display screen 3.It can
Selection of land, using green graph card (0,255,0), reason is graph card: green application is especially advantageous for eliminating stray light, makes the period
Property ring-shaped stripe it is clear, thus be conducive to find central line of lens O accurately1O2。
The detection method of VR equipment provided by the invention, whether can be deflected with precise measurement Fresnel Lenses 2 and lens barrel 4,
Whether display screen 3 and lens barrel 4 deflect, so that authentic testing be made to go out on display screen 3 to show specific pattern with the presence or absence of deflection.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including element.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope of the invention modify to above embodiments.Model of the invention
It encloses and is defined by the following claims.
Claims (9)
1. a kind of detection method of VR equipment, it is characterised in that:
VR equipment includes two lens barrels, and a Fresnel Lenses is arranged on each lens barrel；When detection: in the side of two lens barrels
Display screen is set, capture apparatus is set in the other side of two lens barrels, the capture apparatus is configured as through the Fresnel
Lens shoot the image projected by the display screen；
One reference line is set between two lens barrels；
Display screen projects image to the direction of two Fresnel Lenses, makes two Fresnel Lenses by the image that display screen projects
Ring-shaped stripe hot spot is generated respectively；
Two Fresnel Lenses are shot with capture apparatus, there are two groups of concentric ring-shaped stripe hot spots on the image of acquisition,
Mark center is distinguished on two groups of ring-shaped stripe hot spots, and two centers are connected to form central line of lens；
According to the angle of the central line of lens and the reference line, the inclined of described two Fresnel Lenses and the lens barrel is determined
Gyration.
2. detection method according to claim 1, which is characterized in that be between the central line of lens and the reference line
When the angle of setting, then described two Fresnel Lenses and the lens barrel zero deflection.
3. detection method according to claim 1, which is characterized in that the reference line is the symmetry axis of two lens barrels.
4. detection method according to claim 1, which is characterized in that further include:
The display screen center line for crossing display screen center is projected on the display screen；
The display screen projects image to the direction of two Fresnel Lenses, makes every group of annular bar by the image that display screen projects
A display screen center line is formed on line hot spot；
Display screen is shot through two Fresnel Lenses with capture apparatus, obtains two groups of images, every group of image includes ring-shaped stripe
Two display screen center lines are connected, form a screen by hot spot and a display screen center line on ring-shaped stripe hot spot
It is online；
According to the online angle with the reference line of the screen, the deflection angle of the display screen and the lens barrel is determined.
5. detection method according to claim 4, which is characterized in that the screen is online to be overlapped with the central line of lens.
6. detection method according to claim 4, which is characterized in that the screen is online and the reference line is in scheduled angle
When spending, then the display screen and the lens barrel zero deflection.
7. detection method according to claim 1, which is characterized in that before being detected, using Zhang Shi standardization to institute
It states capture apparatus to be demarcated, the distortion of the capture apparatus is corrected using calibrating parameters.
8. detection method according to claim 1, which is characterized in that shoot described two Fresnels with the capture apparatus
Before lens, graph card is shown on the display screen.
9. detection method according to claim 8, which is characterized in that the graph card of the display screen display is using green figure
Card is conducive to eliminate stray light, keeps ring-shaped stripe hot spot clear.
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| CN109596319A (en) * | 2018-11-26 | 2019-04-09 | 歌尔股份有限公司 | The detection system and method for optics module parameter |
| CN109883360B (en) * | 2019-03-28 | 2020-11-13 | 歌尔光学科技有限公司 | Angle measuring method and device applied to optical system |
| CN110160749B (en) * | 2019-06-05 | 2022-12-06 | 歌尔光学科技有限公司 | Calibration device and calibration method applied to augmented reality equipment |
| CN110907142B (en) * | 2019-12-09 | 2021-08-03 | 中国科学院长春光学精密机械与物理研究所 | Visual somatosensory equipment testing system and method |
| CN111609926B (en) * | 2020-05-21 | 2023-03-21 | 歌尔光学科技有限公司 | Stray light intensity detection method and device, detection terminal and readable storage medium |
| CN113155417B (en) * | 2021-04-25 | 2022-10-18 | 歌尔股份有限公司 | Offset state testing method, testing device and storage medium |
| CN113670232B (en) * | 2021-08-18 | 2024-06-25 | 歌尔光学科技有限公司 | Eccentric standard sample of virtual reality equipment and measuring method of eccentric value of standard sample |
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