CN101266193B - Image detection device and method for head-mounted display - Google Patents
Image detection device and method for head-mounted display Download PDFInfo
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- CN101266193B CN101266193B CN2007100863237A CN200710086323A CN101266193B CN 101266193 B CN101266193 B CN 101266193B CN 2007100863237 A CN2007100863237 A CN 2007100863237A CN 200710086323 A CN200710086323 A CN 200710086323A CN 101266193 B CN101266193 B CN 101266193B
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Images
Abstract
The invention discloses an image detection device which is used for detecting the position difference quantity of a first image and a second image. The image detection device comprises an image acquisition unit and a light processing unit. The light processing unit is used for projecting the first and second images on the image capturing unit.
Description
Technical field
The present invention relates to a kind of image detection device and method, particularly relate to a kind of image detection device that is used for head mounted display, in order to the measures of dispersion of quantification eyes image combination degree, or in order to quantize the measures of dispersion of simple eye image location.
Background technology
Head mounted display (Head Mount Display; HMD) be a kind ofly to utilize display element location and show that before user the optical visual makeup of virtual image puts.General virtual reality (the Virtual Reality that is used for of this kind device; VR) sciemtifec and technical sphere.Head mounted display still can be used to replace the display of computer or television except the standard as virtual reality is equipped with.Such as, use notebook computer in public and don't wish by the other people Peeping Tom this preferable solution of can yet be regarded as.On the other hand, many movability workers, such as breadboard researchist, must be by head mounted display to finish its work.
Moreover except the eyes head mounted display, single-eye head-mounted display more can assist the wearer to browse presentation content on the screen with eyes, and handles affairs at one's side with the another eyes.
With reference to figure 1, no matter eyes head mounted display 10 or single-eye head-mounted display (not shown), its ray machine 14 (that is micro-display) assembling is difficult for, at present rarely carry out the combination of eyes image at the eyes head mounted displays to be measured 10 after the assembling and confirm, or carry out simple eye image positioning confirmation at the to be measured simple eye head mounted displays after the assembling, and can only judge with human eye 12.
Yet prior art is judged the eyes image combination degree of eyes head mounted displays with human eye or is judged the simple eye image location degree of simple eye head mounted displays, can't quantize the measures of dispersion of eyes image combination degree or simple eye image location degree.Therefore, prior art can't judge fast whether head mounted display to be measured must be adjusted or proofread and correct again.
Summary of the invention
A purpose of the present invention is to provide a kind of image detection device, in order to quantize the measures of dispersion of eyes image combination degree.
Another object of the present invention is to provide a kind of image detection device, in order to quantize the measures of dispersion of simple eye image location.
For reaching above-mentioned purpose, the invention provides a kind of image detection device, it is in order to detect the position difference amount of first and second image.This image detection device comprises an image acquisition unit and a light processing unit.This light processing unit is in order to be projeced into this first and second image on this image acquisition unit.
According to image detection device of the present invention, the position difference amount of first and second image on its image acquisition unit can get the result of eyes image combination after image processing, in order to quantize the measures of dispersion of eyes image combination degree.Moreover, be compared to prior art, image detection method of the present invention can be by head mounted display to be measured the comparison of image position measures of dispersion and this image position difference predetermined value, and judge that fast image detects failure or success, also can judge fast whether this head mounted display to be measured must be adjusted or proofread and correct again.
The present invention more provides a kind of image detection device, and it is in order to detect the position difference amount of an actual image and a default image, and this image detection device comprises an image acquisition unit, a light processing unit and a storer.This light processing unit will be in order to being projeced into this image acquisition unit by actual image.This storer is positioned at the position of this image acquisition unit in order to store this default image.
According to image detection device of the present invention, the position difference amount of actual image of this on its image acquisition unit and default image can be in order to quantize the measures of dispersion of simple eye image location after image processing.Be compared to prior art, image detection method of the present invention can be by image position measures of dispersion and this image position difference predetermined value of single-eye head-mounted display more to be measured, and judge that fast image detects failure or success, that is whether this single-eye head-mounted display to be measured must be adjusted or proofread and correct again.
In order to allow above-mentioned and other purposes of the present invention, feature and the advantage can be more obvious, hereinafter will cooperate appended diagram, be described in detail below.
Description of drawings
Fig. 1 is the schematic perspective view of the head mounted display of prior art, and it shows the eyes image combination degree of prior art with human eye judgement eyes head mounted displays;
Fig. 2 is the volume rendering synoptic diagram of the image detection device of the first embodiment of the present invention;
Fig. 3 looks synoptic diagram for the left side of the image detection device of the first embodiment of the present invention;
Fig. 4 is the front-view schematic diagram of the image detection device of the first embodiment of the present invention;
Fig. 5 is the floor map of the image acquisition unit of the first embodiment of the present invention, and it shows that first and second image is respectively square type image;
Fig. 6 is the floor map of the image acquisition unit of the first embodiment of the present invention, and it shows that first and second image is respectively cross image;
Fig. 7 is the floor map of the image detection device of the second embodiment of the present invention;
Fig. 8 a is the floor map of the image detection device of the third embodiment of the present invention;
Fig. 8 b is the floor map of the image detection device of the third embodiment of the present invention, and it shows that the light processing unit more comprises a brightness and adjusts element;
Fig. 9 a is the floor map of the image detection device of the fourth embodiment of the present invention;
Fig. 9 b is the floor map of the image detection device of the fourth embodiment of the present invention, and it shows that the light processing unit more comprises a brightness and adjusts element.
Figure 10 is the volume rendering synoptic diagram of the image detection device of the fifth embodiment of the present invention;
Figure 11 looks synoptic diagram for the left side of the image detection device of the fifth embodiment of the present invention;
Figure 12 is the front-view schematic diagram of the image detection device of the fifth embodiment of the present invention;
Figure 13 is the floor map of the image acquisition unit of the fifth embodiment of the present invention, and it shows that actual image and default image are respectively first and second square type image.
Figure 14 is the floor map of the image acquisition unit of the fifth embodiment of the present invention, and it shows that actual image and default image are respectively cross image.
The main element symbol description:
10 head mounted displays, 12 human eyes
14 ray machines
100 image detection devices, 102 human eyes
110 image acquisition units, 120 light processing units
122 optical splitters, 124 splicers
142 ray machines, 144 ray machines
152 first images, 154 second images
162 optical splitters, 200 image detection devices
210 image acquisition units, 220 light processing units
222 optical splitters, 224 splicers
242 ray machines, 244 ray machines
252 first images, 254 second images
300 image detection devices
310 image acquisition units, 320 light processing units
322 optical splitters, 324 splicers
Element is adjusted in 330 brightness
342 ray machines, 344 ray machines
352 first images, 354 second images
400 image detection devices, 410 image acquisition units
420 light processing units, 422 catoptrons
Element is adjusted in 430 brightness of 424 splicers
442 ray machines, 444 ray machines
452 first images, 454 second images
600 image detection devices, 602 human eyes
610 image acquisition units, 620 light processing units
642 ray machines, 650 storeies
652 actual image 654 default images
660 microprocessors, 662 optical splitters
Embodiment
With reference to figure 2, it shows the image detection device 100 of the first embodiment of the present invention, and it is in order to detecting the position difference amount of first and second image, and defines three vertical coordinates of an XYZ.First and second image is 142,144 generations of two ray machines by a head mounted display to be measured.Image detection device 100 comprises an image acquisition unit 110 and a light processing unit 120.Light processing unit 120 is in order to be projeced into first and second image on the single image acquisition unit 110.Image acquisition unit 110 can comprise a lens combination (not shown) and a sensitization coupling element (Charge Coupled Device; CCD) (not shown) or complementary metal oxide semiconductor (Complementary Metal-OxideSemiconductor; CMOS) image sensor (Image Sensor) (not shown).
With reference to figure 3, image detection device 100 more comprises two optical splitters 162, in order to two ray machines 142,144 first and second image 152,154 that produces along Y direction and Z-direction beam split to the light processing unit 120 with human eye 102 in.
With reference to figure 4, light processing unit 120 comprises two optical splitters 122 and a splicer 124, is projeced into single image acquisition unit 110 via two optical splitters 122 with splicer 124 respectively from first and second images 152,154 of two optical splitters 162.Specifically, first and second image 152,154 from two optical splitters 162 enters two optical splitters 122 along Y direction respectively, along the X-direction beam split to splicer 124, last splicer 124 is projeced into single image acquisition unit 110 with first and second image 152,154 along Y direction to two optical splitters 122 with first and second image 152,154 then.Optical splitter 122 can be a polarization spectroscope (polarizing beam splitter) or spectroscope (beamsplitter).Splicer 124 can be the X font and closes light water chestnut mirror (X-cube prism).
With reference to figure 5, first and second image 152,154 can be respectively square type image, image detection device 100 of the present invention is by the position difference amount of first and second image 152,154 on the single image acquisition unit of detection, and the head mounted display of measuring after the assembling to be measured carries out the image combination degree.Preferably, first and second image 152,154 is respectively first and second coloured light image, and the first coloured light image is different from the second coloured light image, but such as first and second image 152,154 ruddiness and blue light image, the colour mixture position difference amount of first and second image 152,154 of image detection device 100 on can easier detection image acquisition unit 110 thus, and then improve and detect effect.Perhaps, with reference to figure 6, first and second image 152,154 can be respectively cross image, thus the cross position difference amount of first and second image 152,154 of image detection device 100 on can easier detection image acquisition unit 110.
Though the image position difference predetermined value of which kind of mode, when the image position measures of dispersion of head mounted display to be measured approximately less than image position difference predetermined value, then image detects successfully, that is head mounted display to be measured is by the measurement of image conjugation.When the image position measures of dispersion of head mounted display to be measured greater than image position difference predetermined value, then image detects failure, that is head mounted display to be measured must be adjusted and proofread and correct again.
According to the image detection device 100 of present embodiment, the invention provides a kind of image detection method.At first, provide head mounted display to be measured, it comprises two ray machines 142,144.The image acquisition unit 110 and the light processing unit 120 of image detection device 100 are provided then.Then, two ray machines 142,144 with head mounted display to be measured produce first and second image 152,154 respectively.Then, first and second image 152,154 via light processing unit 120, is projeced into image acquisition unit 110.
At last, detect the position difference amount of first and second image 152,154 on the image acquisition unit 110.Preferably, first and second image 152,154 is made as the first coloured light image and the second coloured light image respectively, wherein the first coloured light image is different from the second coloured light image, and detects the colour mixture position difference amount of first and second image 152,154 on the image acquisition unit 110.Perhaps, first and second image 152,154 is made as cross image respectively, and detects the cross position difference amount of first and second image 152,154 on the image acquisition unit 110.
According to image detection device of the present invention, the position difference amount of first and second image on its image acquisition unit can get the result of eyes image combination after image processing, in order to quantize the measures of dispersion of eyes image combination degree.Moreover, be compared to prior art, image detection method of the present invention can be by head mounted display to be measured the comparison of image position measures of dispersion and image position difference predetermined value, and judge that fast image detects failure or success, also can judge fast whether head mounted display to be measured need be adjusted or proofread and correct again.
With reference to figure 7, it shows the image detection device 200 of the second embodiment of the present invention, and it is in order to detecting the position difference amount of first and second image 252,254, and defines two vertical coordinates of an XY.First and second image the 252, the 254th is by 242,244 generations of two ray machines of a head mounted display to be measured.The image detection device 200 of second embodiment is similar to the image detection device 100 of first embodiment substantially, the similar label of similar element marking.Image detection device 200 comprises an image acquisition unit 210 and a light processing unit 220.Light processing unit 220 is in order to be projeced into first and second image 252,254 on the single image acquisition unit 210.
Second embodiment is in two optical splitters 162 that do not comprise first embodiment in the image detection device 200 of second embodiment with the different of first embodiment, that is do not need with two ray machines 242,244 first and second image 252,254 beam split that produce to human eye.Therefore, the aligning step of the image detection device 200 of second embodiment mainly provides the position difference amount of two images by proofreading and correct the other end head mounted displays (not shown) that finishes, to be set at image position difference predetermined value.Proofread and correct the other end head mounted displays that finishes and be called a golden sample (Golden Sample).
Be compared to first embodiment, the structure of the image detection device 200 of second embodiment is more simple, and can reach similar effect, such as the measures of dispersion of quantification image combination degree.Moreover, be compared to prior art, the comparison of image position measures of dispersion and image position difference predetermined value that image detection method of the present invention can be by head mounted display to be measured, and judge fast whether head mounted display to be measured need be adjusted or proofread and correct again.
With reference to figure 8a, it shows the image detection device 300 of the third embodiment of the present invention, and it is in order to detecting the position difference amount of first and second image 352,354, and defines two vertical coordinates of an XY.First and second image the 352, the 354th is by 342,344 generations of two ray machines of a head mounted display to be measured.The image detection device 300 of the 3rd embodiment is similar to the image detection device 200 of second embodiment substantially, the similar label of similar element marking.Image detection device 300 comprises an image acquisition unit 310 and a light processing unit 320.Light processing unit 320 is in order to be projeced into first and second image 352,354 on the single image acquisition unit 310.
With reference to figure 8b, in order to make first image 352 and the brightness in acquisition unit 310 of second image 354 suitable, except optical splitter 322 and splicer 324 can be selected the suitable splitting ratio, system also can add brightness and adjust the light intensity that element 330 is adjusted second image 354.Therefore brightness is adjusted element 330 and be can be optical attenuation sheet, line polar biased sheet (linear polarizer) or half-wave lengthy motion picture (half-wave plate).
Be compared to second embodiment, the structure of the image detection device 300 of the 3rd embodiment is more simple, and can reach the effect of the image detection device 200 of similar second embodiment.
With reference to figure 9a, it shows the image detection device 400 of the fourth embodiment of the present invention, and it is in order to detecting the position difference amount of first and second image 452,454, and defines two vertical coordinates of an XY.First and second image the 452, the 454th is by 442,444 generations of two ray machines of a head mounted display to be measured.The image detection device 400 of the 4th embodiment is similar to the image detection device 300 of the 3rd embodiment substantially, the similar label of similar element marking.Image detection device 400 comprises an image acquisition unit 410 and a light processing unit 420.Light processing unit 420 is in order to be projeced into first and second image 452,454 on the single image acquisition unit 410.
With reference to figure 9b,, can before splicer 424, add a brightness and adjust element 430, in order to adjust the light intensity of second image 454 in order to make first and second image 452,454 brightness on the single image acquisition unit 410 suitable.Therefore brightness is adjusted element 430 and be can be optical attenuation sheet, line polar biased sheet (linearpolarizer) or half-wave lengthy motion picture (half-wave plate).
Be compared to the 3rd embodiment, the image detection device 400 of the 4th embodiment can make the light service efficiency better, and can reach the effect of the image detection device 300 of similar the 3rd embodiment.
With reference to Figure 10, it shows the image detection device 600 of the fifth embodiment of the present invention, its position difference amount in order to detect actual image and to preset image, and define three vertical coordinates of an XYZ.Actual image is that the ray machine 642 by a single-eye head-mounted display to be measured is produced, and default image is to have proofreaied and correct another single-eye head-mounted display (not shown) that finishes by one to be produced.Proofread and correct the other end head mounted displays that finishes and be called a golden sample (Golden Sample).
With reference to Figure 11 and Figure 12, image detection device 600 comprises an image acquisition unit 610 and a light processing unit 620, a storer 650 and a microprocessor 660.Light processing unit 620 is in order to be projeced into actual image 652 on the image acquisition unit 610.Storer 650 is positioned at position on the image acquisition unit 610 in order to store default image.Microprocessor 660 is in order to the position difference amount of the actual image 652 on the detection image acquisition unit 610 with default image.
With reference to Figure 13, actual image 652 and default image 654 can be respectively square type image, image detection device 600 of the present invention reaches the position difference amount of presetting image 654 by the actual image 652 that detects on the image acquisition unit, and the single-eye head-mounted display of measuring after the assembling to be measured is carried out image location degree.Perhaps, with reference to Figure 14, actual image 652 and default image 654 can be respectively cross image, thus image detection device 600 on can easier detection image acquisition unit 610 actual image 652 and the cross position difference amount of default image 654.
Again with reference to Figure 11, light processing unit 620 comprises an optical splitter 662, in order to the ray machine 642 actual image 652 that produces respectively along Y direction and Z-direction beam split to image acquisition unit 610 with human eye 602 in, in order to the position difference amount of 602 receptible actual images 652 of human eye with default image to be provided, to be set at an image position difference predetermined value.Optical splitter 662 can be polarization spectroscope (polarizing beam splitter) or spectroscope (beam splitter).
When the image position measures of dispersion of single-eye head-mounted display to be measured approximately less than image position difference predetermined value, then image detects successfully, that is single-eye head-mounted display to be measured is by the measurement of image location.When the image position measures of dispersion of single-eye head-mounted display to be measured greater than image position difference predetermined value, then image detects failure, that is single-eye head-mounted display to be measured need be adjusted and proofread and correct again.
According to the image detection device 600 of present embodiment, the invention provides a kind of image detection method.At first, provide simple eye single-eye head-mounted display to be measured, it comprises a ray machine 642.The image acquisition unit 610 and the light processing unit 620 of image detection device 600 are provided then.Then, provide the storer 650 of image detection device 600, it stores default image 610 and is positioned at position on the image acquisition unit 610.Then, the ray machine 642 with single-eye head-mounted display to be measured produces an actual image 652.Then, actual image 652 via light processing unit 620, is projeced into image acquisition unit 610.
At last, provide the microprocessor 660 of image detection device 600, reach the position difference amount of presetting image 654 in order to the actual image 652 that detects on the image acquisition unit 610.Preferably, actual image 652 and default image 654 are made as cross image respectively, and the actual image 652 that detects on the image acquisition unit 610 reaches the cross position difference amount of presetting image 654.
According to image detection device of the present invention, the position difference amount of actual image on its image acquisition unit and default image can be in order to quantize the measures of dispersion of simple eye image location after image processing.Be compared to prior art, image detection method of the present invention can be by the image position measures of dispersion and the image position difference predetermined value of single-eye head-mounted display more to be measured, and judge that fast image detects failure or success, that is whether single-eye head-mounted display to be measured need be adjusted or proofread and correct again.
Though disclose in conjunction with the above embodiment, yet it is not in order to qualification the present invention, any persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when doing various changes and modification.Therefore protection scope of the present invention should be with being as the criterion that claim was defined.
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| JP5402293B2 (en) * | 2009-06-22 | 2014-01-29 | ソニー株式会社 | Head-mounted display and image display method in head-mounted display |
| CN103064186A (en) * | 2011-10-19 | 2013-04-24 | 中央大学 | One-dimensional scanning type pupil projection display device |
| CN104111165A (en) * | 2014-08-08 | 2014-10-22 | 中国科学院光电技术研究所 | Evaluation device for image quality of near-to-eye display optical lens |
| WO2017183582A1 (en) * | 2016-04-19 | 2017-10-26 | コニカミノルタ株式会社 | Optical characteristic measuring device |
| CN107024339B (en) * | 2017-04-21 | 2023-10-20 | 小艾帮帮（杭州）科技有限公司 | Testing device and method for head-mounted display equipment |
| CN112584113B (en) * | 2020-12-02 | 2022-08-30 | 深圳市当智科技有限公司 | Wide-screen projection method and system based on mapping correction and readable storage medium |
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| US6618076B1 (en) * | 1999-12-23 | 2003-09-09 | Justsystem Corporation | Method and apparatus for calibrating projector-camera system |
| US6771307B2 (en) * | 2000-03-06 | 2004-08-03 | Olympus Optical Co., Ltd. | Image calibration device and image calibration method |
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| US6618076B1 (en) * | 1999-12-23 | 2003-09-09 | Justsystem Corporation | Method and apparatus for calibrating projector-camera system |
| US6771307B2 (en) * | 2000-03-06 | 2004-08-03 | Olympus Optical Co., Ltd. | Image calibration device and image calibration method |
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| JP特开2005-267005A 2005.09.29 |
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