CN110007475A - Utilize the method and apparatus of virtual depth compensation eyesight - Google Patents
Utilize the method and apparatus of virtual depth compensation eyesight Download PDFInfo
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- CN110007475A CN110007475A CN201910306094.8A CN201910306094A CN110007475A CN 110007475 A CN110007475 A CN 110007475A CN 201910306094 A CN201910306094 A CN 201910306094A CN 110007475 A CN110007475 A CN 110007475A
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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
- G02B27/0093—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
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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Abstract
The present invention relates to field of display technology, more particularly to and disclose a kind of method and apparatus using virtual depth compensation eyesight.Using the method for virtual depth compensation eyesight, it is based on bore hole 3D display device, generates virtual image on the basis of original image, by adjusting the virtual depth value of virtual image, virtual image is adjusted at a distance from retina, converges virtual image just on the retina, as visional compensation.The invention also discloses the devices using virtual depth compensation eyesight, including bore hole 3D display device, also successively include data input cell, data storage cell, central processing unit, data outputting unit.Method and apparatus using virtual depth compensation eyesight of the invention enables myopia, farsightedness clearly to watch the screen of mobile phone, TV, computer in the case where not wearing spectacles, has the advantages that easy to use, rectification effect is good.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of method and apparatus using virtual depth compensation eyesight.
Background technique
For the various objects of nature under the irradiation of light, different colours can reflect the different light of light and shade, these light
Line penetrates the refraction of cornea, crystalline lens, vitreum, shows the shadow scene (picture of handstand) of scenery on the retina, constitutes polished bard
Swash.After the stimulation of photosensory cell (circular cone and rhabdocyte) light on retina, by a series of physicochemical change, turn
It changes nerve impulse into, the visual centre of strata cerebrale is passed to by optic nerve, then we can see object, by cerebral cortex
Comprehensive analysis, generate vision, people just seen scenery (upright space image) clearly.But after human eye generates decline, image
Convergent point cannot be presented on the retina, then will appear eye-blurred, such as myopia: as shown in fig. la, precisely due to convergence
Focus 9 is presented on before retina 8, needs to correct using concavees lens 10 as shown in figure ib, and long sight and presbyopia are for example attached
It is then since convergence focus 9 is presented on after retina 8 shown in Fig. 2 a.In order to see object clearly, need to adopt as shown in attached drawing 2b
It is corrected with convex lens 11.
Nowadays, display screen is ubiquitous, and coming into contacts with display screen has been the habitual thing of people, sees that screen is very
A part of more employee works.People problematic for those eyesights, have on for a long time display screen from the point of view of glasses life is brought it is all
Mostly inconvenient, if display equipment itself has the function of correcting defects of vision, people will can get rid of the comfortable of glasses, and life is more just
Benefit.
Naked eye 3D is a kind of emerging display technology, and the technology by any ancillary equipment not that can not allow left and right two from aobvious
See that two width have parallax, difference picture in display screen, they, which are reflected into brain, will obtain virtual image, not only
Family can be used and watch true stereo scene, can also replace myopia or farsighted glasses, viewer do not wear myopia or
In the case where person's farsighted glasses, text is seen clearly.It namely by changing the way of dummy object object plane, see human eye can not clearly
Object is apparent from, so that screen picture can be seen clearly by not having to glasses or moving display screen change distance.
Summary of the invention
In view of the problems of the existing technology, the present invention provides one kind in the case where dysphotia, is without the use of glasses
Or moving display screen change distance can see the method and apparatus using virtual depth compensation eyesight of screen clearly.
Using the method for virtual depth compensation eyesight, it is based on bore hole 3D display device, is generated on the basis of original image virtual
Image adjusts virtual image at a distance from retina, virtual image is made just to converge by adjusting the virtual depth value of virtual image
Poly- virtual depth value is positive on the retina, and virtual image, which enters, to be shielded far from human eye, compensates as long sight；Virtual depth value is negative,
Virtual image, which goes out, to be shielded close to human eye, is compensated as myopia.The virtual depth value refers to that virtual image is filled to naked eye 3D display
Set the distance between screen.
Since seen object is for long sight or presbyopia, actual imaging is behind retina.So naked eye 3D display fills
It sets, object to be shown is needed, is drawn toward screen the inside, i.e., far from human eye, the position of screen imaging opposite can retreat, that is, return
Onto retinal plane.So not needing to wear farsighted glasses, so that it may see the text or picture not seen usually clearly.Therewith
On the contrary, for myopia, actual imaging is before retina, so in bore hole 3D display device, needing object to be shown,
It is pushed away outside toward screen, i.e., close to human eye, the position of screen imaging can retreat, that is, return in retinal plane.So not needing
Wear near-sighted glasses, so that it may see the text or picture not seen usually clearly.
Preferably, being included the following steps: using the method for virtual depth compensation eyesight
1) long sight or myopia degree corrected by needs obtain required virtual depth value；
2) camera absorbs original image, and obtains camera parameter；
3) right and left eyes image parallax value is calculated away from, virtual depth value by camera parameter, people's pupil of both eyes；
4) according to right and left eyes image parallax value and original image, right and left eye view pair is produced, in bore hole 3D display device
It plays out, obtains the virtual image with required virtual depth value, to carry out visional compensation.
The virtual depth of image is realized by parallax.It allows and controls two image different froms seen, it can be in human brain
It is middle to form the image with required virtual depth, thus caused by compensating myopia or long sight using visual depth, image
Practical focus point is at a distance from retina.
Preferably, further including step 5): when virtual image visional compensation obtained by step 4) is undesirable, to step 1)
The virtual depth value is corrected.Obtain clear visional compensation with can be convenient.
Preferably, correction degree and the corresponding relationship of virtual depth value described in step 1) are carried out by prior data bank
It determines.For each individual, the degree of parallax value and myopia or long sight is corresponded, for Different Individual, parallax value with
Settable parameter between degree is corrected, by adjusting the size of parameter, experiment is carried out and obtains related data, be stored in database.
Preferably, correction degree described in step 1) takes mean value when two degrees are different.It is all myopia at two
Or in the case where long sight, when two eye visions are not much different, correction degree can take mean value.
Preferably, right and left eyes image parallax value described in step 3)Wherein f is to take the photograph
The focal length of camera used, T when taking original imagexIt is people's pupil of both eyes away from p is that camera imaging used in intake original image is corresponding single
The width of pixel, ZfarFor the maximal field depth of camera used in intake original image, ZnearFor the minimum of camera used in intake original image
The depth of field, X are virtual depth value, wherein f, p, Zfar、ZnearCamera parameter used when to absorb original image.Right and left eyes image parallax
There is quantitative relationship between value and virtual depth value, pass through the focal length of camera used, maximum when virtual depth value, intake original image
The depth of field, the minimum depth of field, the width that corresponding single pixel point is imaged, two eye pupil pitch-rows can quantitatively calculate right and left eyes image parallax
It is worth (pixel value).
Derivation process is as follows: the right and left eyes image parallax valueIts unit is pixel, and wherein d is the depth of field
For parallax distance of the scenery in right and left eyes image of Z:Z is the depth of field of object in camera model；
Due to the depth value of image and the practical depth of field inversely (general definition farthest is closely depth of field maximum value, and
Farthest parallax is approximately zero, and defining picture depth is minimum), depth S can be approximate with the relationship of depth of field Z is defined as: S=
255a/Z (255 > S > 0) is 3., in which:Will 2. formula, 3. formula substitutes into 1. formula, can obtain:Assuming that S=128 is arranged in the corresponding depth of normal pictures, substitute into 5. formula to get arriving:
It can define virtual depth X=S-128 (127 > X > -128) 7., positive value goes out to shield depth, negative value for corresponding virtual image
Enter to shield depth for corresponding virtual image.Right and left eyes image parallax value D and virtual depth value X simplifies are as follows:
Will 4., 6. formula substitutes into 8. formula, be further simplified as
Preferably, right and left eye view pair described in step 4), wherein a width view is original image, another width view is opposite
In the offset of original image be right and left eyes image parallax value D.The parallax obtained in this way is played in bore hole 3D display device, energy
Virtual depth value image needed for being formed compensates eyesight.
Preferably, bore hole 3D display device described in step 4) includes slit grating naked eye 3D display screen or column grating
Naked eye 3D display screen.
It further include data input cell, data using the device of virtual depth compensation eyesight, including bore hole 3D display device
Storage unit, central processing unit, data outputting unit, in which:
Data input cell is for inputting correction degree and correction parameter, camera parameter, people's pupil of both eyes away from, original image
Picture；
Data storage cell is used to store the correction degree numerical value of input, correction parameter values, camera parameter, people's pupil of both eyes
Away from, original image and correct the corresponding relation database of degree and virtual depth value；
Central processing unit: the corresponding relation database for comparing correction degree and virtual depth value obtains virtual depth
Value and corrected by correction parameter, combining camera parameter value, people's pupil of both eyes away from calculate right and left eyes image parallax value, in original
Right and left eye view pair is made in image basis, by right and left eye view to being fused to piece image；
Data outputting unit is played out for blending image to be output to bore hole 3D display device；
Bore hole 3D display device is used to the blending image received being separated into right and left eye view pair, sees right and left eyes respectively
To corresponding view, the view for having parallax is fitted by National People's Congress's brain again, finally sees the virtual image with virtual depth, is used
In visional compensation.
Preferably, the data input cell include correction data input cell and correction parameter input unit, its
His parameter input unit inputs correction degree, correction parameter, camera parameter, people's pupil of both eyes away from, original image respectively.Input makes
The correction degree of employment carries out visional compensation if unintelligible and adjusts correction parameter, until compensation until clear.
Preferably, it is suitable for mobile phone or computer or televisions using the device of virtual depth compensation eyesight.Mobile phone or electricity
Brain or TV configure the above-mentioned device using virtual depth compensation eyesight, are convenient to carry out visional compensation.
Method and apparatus using virtual depth compensation eyesight of the invention is based on bore hole 3D display device, in original image base
Virtual image is generated on plinth, by adjusting the virtual depth value of virtual image, is adjusted virtual image at a distance from retina, is made void
Quasi- image just converges on the retina, and the positive and negative value of virtual depth corresponds to long sight or myopia compensation.This eyesight compensation method
So that myopia, farsightedness is clearly watched the screen of mobile phone, TV, computer in the case where not wearing spectacles, has and use
Advantage convenient, rectification effect is good.
Detailed description of the invention
Fig. 1 a is that near-sighted focus converges schematic diagram；Fig. 1 b is the signal that the prior art carries out myoporthosis using concavees lens
Figure.
Fig. 2 a is that long sight focus converges schematic diagram；Fig. 2 b is the signal that the prior art carries out distance vision correction using convex lens
Figure.
Fig. 3 is the method progress myopia compensation schematic diagram that the embodiment of the present invention 1 compensates eyesight using virtual depth.
Fig. 4 a is the schematic diagram that Fig. 3 myopia compensates left-eye view used；Fig. 4 b is the signal of the opposite right-eye view of Fig. 4 a
Figure.
Fig. 5 is the method progress long sight compensation schematic diagram that the embodiment of the present invention 2 compensates eyesight using virtual depth.
Fig. 6 a is the schematic diagram that Fig. 5 long sight compensates left-eye view used；Fig. 6 b is the signal of the opposite right-eye view of Fig. 6 a
Figure.
Fig. 7 is the structural schematic diagram for the device that the embodiment of the present invention 1 compensates eyesight using virtual depth.
Specific embodiment
Below with reference to Fig. 1-7, the present invention is described further with specific embodiment.
Embodiment 1
Using the method for virtual depth compensation eyesight, it is based on bore hole 3D display device, is generated on the basis of original image 12 empty
Quasi- image 13 adjusts virtual image 13 at a distance from retina 8 by adjusting the virtual depth value of virtual image 13, makes virtual
Image 13 just converges on retina 9, and virtual depth value is positive, and virtual image 13, which enters, to be shielded far from human eye, compensates as long sight；
Virtual depth value is negative, and virtual image 13, which goes out, to be shielded close to human eye, compensates as myopia.The present embodiment is near-sighted compensation, such as attached drawing 3
Shown, virtual depth value is negative, and virtual image 13 goes out to shield close to human eye, and screen imaging position retreats, returns on retina 8.
Using the method for virtual depth compensation eyesight, include the following steps:
1) required virtual depth value is obtained by the myopia degree that needs are corrected；
2) camera absorbs original image, and obtains camera parameter；The camera parameter include the focal length of camera, camera at
As the minimum depth of field of the width of corresponding single pixel point, the maximal field depth of camera, camera.
3) right and left eyes image parallax value is calculated away from, virtual depth value by camera parameter, people's pupil of both eyes；
4) according to right and left eyes image parallax value and original image 12, right and left eye view pair is produced, in bore hole 3D display device
Upper 5 play out, and obtain the virtual image 13 with required virtual depth value, to carry out visional compensation.
It further include step 5): when 13 visional compensation of virtual image obtained by step 4) is undesirable, to described in step 1)
Virtual depth value is corrected.
Correction degree and the corresponding relationship of virtual depth value described in step 1) are determined by prior data bank.Step
1) the correction degree described in takes mean value when two degrees are different.
Right and left eyes image parallax value described in step 3)When wherein f is intake original image
The focal length of camera used, TxFor two eye pupil pitch-rows, p is the width for absorbing the corresponding single pixel point of camera imaging used in original image
Degree, ZfarFor the maximal field depth of camera used in intake original image, ZnearFor the minimum depth of field of camera used in intake original image, X is void
Intend depth value, wherein f, p, Zfar、ZnearThe parameter of camera used when for intake original image.This example: f 0.4m, TxFor 65mm,
Zfar=120, Znear=40, p 4.25um, when virtual depth X is set as+80, then calculating D is 32 pixels.
Right and left eye view pair described in step 4), as shown in attached drawing 4a, left-eye view 14 is original image, such as attached drawing 4b institute
Show, right-eye view 15 deviates to the right relative to original image, and offset is right and left eyes image parallax value D, this example deviates 32 pixels
Point.
It as shown in Fig. 7, further include data using the device of virtual depth compensation eyesight, including bore hole 3D display device 5
Input unit 1, data storage cell 2, central processing unit 3, data outputting unit 4, in which:
Data input cell 1 includes correction data input cell 6 and correction parameter input unit 7, other parameters input list
Member 8 respectively input correction degree, correction parameter, camera parameter, people's pupil of both eyes away from, original image.
Data storage cell 2 is used to store the correction degree numerical value of input, correction parameter values, camera parameter, people's eyes pupil
Pitch-row, original image and the corresponding relation database for correcting degree and virtual depth value；
Central processing unit 3: the corresponding relation database for comparing correction degree and virtual depth value obtains virtual depth
Angle value and corrected by correction parameter, combining camera parameter value, people's pupil of both eyes away from calculate right and left eyes image parallax value,
Right and left eye view pair is made on the basis of original image, by right and left eye view to being fused to piece image；
Data outputting unit 4 is played out for blending image to be output to bore hole 3D display device 5；
Bore hole 3D display device 5 is used to the blending image received being separated into right and left eye view pair, distinguishes right and left eyes
See that the view for having parallax is fitted by corresponding view, National People's Congress's brain again, finally see the virtual image with virtual depth,
For visional compensation.
This is applied to mobile phone using the device that virtual depth compensates eyesight.
The degree of the myopia of user or long sight is inputted by correction data input cell 6 and is stored into data storage list
Member 2, camera parameter, people's pupil of both eyes are inputted away from, original image by other parameters input unit 8 and to be stored into data storage single
The corresponding relation database of correction degree and virtual depth value, central processing has been stored in advance in member 2, Data Data storage unit 2
Unit 3 calculates right and left eyes image parallax value, production right and left eye view pair according to above-mentioned data, by right and left eye view to permeating
Width image, data outputting unit 4 are used to for blending image being output to bore hole 3D display device 5, and bore hole 3D display device 5 is used for will
The blending image received is separated into right and left eye view pair, makes right and left eyes that corresponding view be respectively seen, and National People's Congress's brain again will
There is the view of parallax to be fitted, finally sees the virtual image 13 with virtual depth.If 13 visional compensation of virtual image is paid no attention to
When thinking, then by the input correction parameter of correction parameter input unit 7, repeats the above steps and be corrected, until obtaining clearly
Virtual view 13.
Embodiment 2
Other methods and device such as embodiment 1, the difference is that:
The present embodiment is long sight compensation, and as shown in Fig. 5, virtual depth value is positive, and virtual image 13, which enters, to be shielded far from human eye,
The Forward of screen imaging position, returns on retina 8.
Right and left eye view pair described in step 3), as shown in fig. 6, left-eye view 14 are original image 12, such as attached drawing 6a institute
Show, right-eye view 15 deviates to the left relative to original image, and offset is right and left eyes parallax value D.
After correcting twice, farsightedness naked eye sees clearly handset image in normal distance.
It is in summary only presently preferred embodiments of the present invention, practical range not for the purpose of limiting the invention, Fan Yibenshen
Please equivalent changes and modifications made by the content of the scope of the patents, all should be technology scope of the invention.
Claims (9)
1. utilizing the method for virtual depth compensation eyesight, it is characterised in that: bore hole 3D display device is based on, on the basis of original image
Virtual image is generated, by adjusting the virtual depth value of virtual image, virtual image is adjusted at a distance from retina, makes virtual graph
As just converging on the retina, virtual depth value is positive, and virtual image, which enters, to be shielded far from human eye, compensates as long sight；It is virtual deep
Angle value is negative, and virtual image, which goes out, to be shielded close to human eye, compensates as myopia.
2. the method according to claim 1 using virtual depth compensation eyesight, characterized by the following steps:
1) long sight or myopia degree corrected by needs obtain required virtual depth value；
2) camera absorbs original image, and obtains camera parameter；
3) right and left eyes image parallax value is calculated away from, virtual depth value by camera parameter, people's pupil of both eyes；
4) according to right and left eyes image parallax value and original image, right and left eye view pair is produced, is carried out in bore hole 3D display device
It plays, the virtual image with required virtual depth value is obtained, to carry out visional compensation.
3. the method according to claim 2 using virtual depth compensation eyesight, it is characterised in that: further include step 5):
When virtual image visional compensation obtained by step 4) is undesirable, the virtual depth value described in step 1) is corrected.
4. the method according to claim 2 using virtual depth compensation eyesight, it is characterised in that: rectified described in step 1)
Positive degree and the corresponding relationship of virtual depth value are determined by prior data bank.
5. the method according to claim 2 using virtual depth compensation eyesight, it is characterised in that: rectified described in step 1)
Positive degree takes mean value when two degrees are different.
6. the method according to claim 2 using virtual depth compensation eyesight, it is characterised in that: a left side described in step 3)
Eye image parallax valueWherein f is the focal length of camera used when absorbing original image, TxFor people
Pupil of both eyes is away from p is the width for absorbing the corresponding single pixel point of camera imaging used in original image, ZfarTo absorb original image institute
With the maximal field depth of camera, ZnearFor intake original image used in camera the minimum depth of field, X be virtual depth value, wherein f, p,
Zfar、ZnearCamera parameter used when to absorb original image.
7. the method according to claim 2 using virtual depth compensation eyesight, it is characterised in that: a left side described in step 4)
Right-eye view pair, wherein a width view is original image, another width view is right and left eyes image view relative to the offset of original image
Difference.
8. utilizing the device of virtual depth compensation eyesight, it is characterised in that: successively include:
Data input cell (1): for inputting correction degree and correction parameter, camera parameter, people's pupil of both eyes away from, original image
Picture；
Data storage cell (2): for storing correction degree numerical value, the correction parameter values, camera parameter, people's pupil of both eyes of input
Away from, original image and correct the corresponding relation database of degree and virtual depth value；
Central processing unit (3): the corresponding relation database for comparing correction degree and virtual depth value obtains virtual depth
Value and corrected by correction parameter, combining camera parameter value, people's pupil of both eyes away from calculate right and left eyes image parallax value, in original
Right and left eye view pair is made in image basis, by right and left eye view to being fused to piece image；
Data outputting unit (4): it is played out for blending image to be output to display device；
Bore hole 3D display device (5): for the blending image received to be separated into right and left eye view pair, see right and left eyes respectively
To corresponding view, the view for having parallax is fitted by National People's Congress's brain again, finally sees the virtual image with virtual depth, is used
In visional compensation.
9. the device according to claim 8 using virtual depth compensation eyesight, it is characterised in that: the data input
Unit (1) includes that correction data input cell (6) and correction parameter input unit (7), other parameters input unit (8) are defeated respectively
Enter to correct degree, correction parameter, camera parameter, people's pupil of both eyes away from, original image.
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| CN115844323A (en) * | 2022-12-09 | 2023-03-28 | 视微影像(河南)科技有限公司 | Optical lens group suitable for color fundus image system, visibility compensation method and driving method |
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