CN102710956B - Naked 3D track display method and equipment - Google Patents
Naked 3D track display method and equipment Download PDFInfo
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- CN102710956B CN102710956B CN201210179736.0A CN201210179736A CN102710956B CN 102710956 B CN102710956 B CN 102710956B CN 201210179736 A CN201210179736 A CN 201210179736A CN 102710956 B CN102710956 B CN 102710956B
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Abstract
The invention discloses a naked 3D track display method, which comprises the steps of: an image collector collecting images of a viewer; an image processor determining the position of the viewer, and determining a horizontal motion distance of the viewer in parallel to a display screen according to the distance of the left and right eyes in the human face images and an average distance of the left and right eyes of the human faces; according to the position of the viewer, a traversing module finding a liquid crystal grating state value corresponding to the position of the viewer determined by the image processor in the viewer position and a corresponding index list, and the liquid crystal grating state value comprising a plurality of adjacent grating units and the driving manner of each of the plurality of adjacent grating units; a grating driving module finding the liquid crystal grating state value according to the traversing module to drive the liquid crystal gratings; and a displaying screen displaying image information. The invention further disclosed naked 3D track display equipment. According to the invention, a 3D display region can be regulated according to the spatial location of the viewer, so that the viewer can always senses a 3D displaying effect during motion.
Description
Technical field
The present invention relates to field of stereoscopic display, particularly relate to the three-dimensional track display method of a kind of bore hole and device.
Background technology
The eyes of people are in same plane substantially, but have certain spacing between two, therefore watch object time sight line can form an intersecting angle, angle is larger, third dimension and distance perspective stronger.Due to the existence of intersecting angle, the picture that eyes are seen is not identical, namely creates " parallax ", and the picture that two width have parallax obtains complete stereopsis after brain process, in other words three-dimensional (three-dimensional is called for short 3D) image.Bore hole need not be worn 3D glasses in other words and also can see and draw 3D effect.
Stereoscopic display device utilizes the feature of human eye parallax to show 3D effect.The picture with parallax outputs on three-dimensional display by usual stereoscopic display device, then this stereoscopic parallax picture is sent to the right and left eyes of beholder, and then synthetic stereo image.
In current bore hole stereo display technique, viewing location is more fixing, and beholder just can only can watch proper stereo-picture in stereos copic viewing region.When beholder is not or not this region, will there will be instead to look, ghost image, the situation such as distortion, have a strong impact on stereo display effect.
Summary of the invention
For solving in above-mentioned bore hole stereo display technique after beholder's change in location, can not watch the problem of suitable image, the present invention adopts following technical scheme:
The invention provides the three-dimensional track display method of a kind of bore hole, it comprises:
Image acquisition device gathers the image of beholder;
Image processor obtains facial image in the image of the beholder collected, and the position determining beholder is calculated according to described facial image, that determines that beholder is parallel to display screen according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes moves horizontally distance;
Spider module is according to the position of described beholder, in beholder position with mutually corresponding concordance list, search the liquid crystal grating state value corresponding to position of the beholder that image processor is determined, described liquid crystal grating state value comprises each raster unit type of drive separately in multiple adjacent raster unit and described multiple adjacent raster unit;
The liquid crystal grating state value that grating driver module finds according to described spider module, drives liquid crystal grating;
Display screen displays image information.
The present invention also provides a kind of bore hole solid to follow the trail of display unit, and it comprises:
Image acquisition device, for gathering the image of beholder;
Image processor, for obtaining facial image in the image of the beholder collected, and the position determining beholder is calculated according to described facial image, described image processor comprises distance determination module, and what according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes, described distance determination module determined that beholder is parallel to display screen moves horizontally distance;
Spider module, for the position according to described beholder, in beholder position with mutually corresponding concordance list, search the liquid crystal grating state value corresponding to position of the beholder that image processor is determined, described liquid crystal grating state value comprises each raster unit type of drive separately in multiple adjacent raster unit and described multiple adjacent raster unit, spider module, also for driving display screen, is electrically connected mutually with described display screen;
Grating driver module, for the liquid crystal grating state value found according to described spider module, drives liquid crystal grating; And
Display screen, is disposed adjacent with described liquid crystal grating, for displays image information.
The three-dimensional track display method of above-mentioned bore hole and device adopt image acquisition device and image processor to determine the position of beholder, according to the position of beholder, adjust liquid crystal grating accordingly, the direction of light transmission is also changed thereupon, still reach the right and left eyes of beholder, thus the adjustment stereo display region, locus achieved according to beholder, make beholder can see 3D display effect all the time in the process of movement.
Accompanying drawing explanation
Fig. 1 is the three-dimensional track display method schematic flow sheet of a kind of bore hole of the present invention.
The raster unit schematic diagram that Fig. 2 is liquid crystal grating of the present invention and comprises.
The concordance list schematic diagram of Fig. 3 for adopting in the three-dimensional track display method of a kind of bore hole of the present invention.
Fig. 4 liquid crystal grating transmission region change schematic diagram that to be the present invention corresponding according to beholder's change in location.
Fig. 5 is that a kind of bore hole solid of the present invention follows the trail of display unit first embodiment schematic diagram.
Fig. 6 is that a kind of bore hole solid of the present invention follows the trail of display unit second embodiment schematic diagram.
Fig. 7 is that a kind of bore hole solid of the present invention follows the trail of display unit the 3rd embodiment schematic diagram.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Refer to Fig. 1, it is the three-dimensional track display method schematic flow sheet of a kind of bore hole of the present invention.
The invention provides the three-dimensional track display method of a kind of bore hole, it comprises:
Step S1, image acquisition device gather the image of beholder;
In the present embodiment, image acquisition device is camera, utilizes the image of this camera Real-time Collection beholder.
Step S2, image processor obtain facial image in the image of the beholder collected, and calculate the position determining beholder according to described facial image;
Image processor and image acquisition device are interconnected, and image processor can be processor or single-chip microcomputer.Except, determine outside the position of beholder according to the area of facial image and the relation of standard faces area, what according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes, image processor can also determine that beholder is parallel to display screen moves horizontally distance, certainly, the vertical displacement of beholder perpendicular to display screen can also be determined.
Step S3, spider module are according to the position of described beholder, in beholder position with mutually corresponding concordance list, search the liquid crystal grating state value corresponding to position of the beholder that image processor is determined, described liquid crystal grating state value comprises each raster unit type of drive separately in multiple adjacent raster unit and described multiple adjacent raster unit;
As shown in Figure 2, liquid crystal grating 10 comprises multiple raster unit 11, a raster unit is least unit, several adjacent raster units form one group, be defined as grating group 12, also namely a grating group defines a raster pitch (specifically a grating group defines a slot pitch or a lens pitch), then liquid crystal grating just comprises multiple adjacent grating group.For example, a grating group comprises 4 raster units, or a grating group comprises 6 raster units, and certainly, a grating group also can comprise the raster unit of other quantity.In fig. 2, a grating group comprises 6 raster units.Certainly, liquid crystal slit grating and liquid crystal lens grating are similar.
Multiple adjacent raster unit included by liquid crystal grating state value in concordance list is exactly grating group.As shown in Figure 3, one group of grating group has been shown in shown concordance list, this grating group comprises 6 raster units, is raster unit a, raster unit b, raster unit c, raster unit d, raster unit e respectively, and raster unit f.
In the present embodiment, described type of drive comprises the first driving condition and the second driving condition, and when in grating driver module driving liquid crystal grating, a raster unit makes it be in the first driving condition, light therethrough is in the raster unit of the first driving condition; When grating driver module drives a raster unit in liquid crystal grating to make it belong to the second driving condition, light can not through the raster unit being in the second driving condition.
For example bright below, position A and B of beholder, moves horizontally distance for what be parallel to display screen:
In the first moment, image processor determines that the position of beholder is: the position A of beholder, spider module is in concordance list, liquid crystal grating state value A ': raster unit a corresponding to the A of position finding beholder is the first driving condition, raster unit b is the first driving condition, and raster unit c is the second driving condition, and raster unit d is the second driving condition, raster unit e is the second driving condition, and raster unit f is the second driving condition.
In the second moment, image processor determines that the position of beholder is: the position B of beholder, spider module is in concordance list, liquid crystal grating state value B ': raster unit a corresponding to the B of position finding beholder is the second driving condition, raster unit b is the first driving condition, and raster unit c is the first driving condition, and raster unit d is the second driving condition, raster unit e is the second driving condition, and raster unit f is the second driving condition.
The liquid crystal grating state value that step S4, grating driver module find according to described spider module, drives liquid crystal grating; As shown in Figure 4,1,2,3,4,5,6 pixel or sub-pixels are represented in figure above Fig. 4.
Middle plot was shown in for the first moment, and by the driving of grating driver module, the raster unit a of liquid crystal grating is the first driving condition, printing opacity, and raster unit b is the first driving condition, printing opacity; And raster unit c is the second driving condition, raster unit d is the second driving condition, and raster unit e is the second driving condition, and raster unit f is the second driving condition, neither printing opacity.
Lower diagrams was shown in for the second moment, and by the driving of grating driver module, the raster unit a of liquid crystal grating is the second driving condition, light tight, and raster unit b is the first driving condition, printing opacity, and raster unit c is the first driving condition, printing opacity; And raster unit d is the second driving condition, raster unit e is the second driving condition, and raster unit f is the second driving condition, neither printing opacity.
Also be, beholder is in the change in location in the first moment and the second moment, the printing opacity of liquid crystal grating and lighttight position is caused also to change, make to correspondence light still via liquid crystal grating, be transferred to the right and left eyes of beholder, achieve the change in location according to beholder, adjustment light transmission direction, correspondence ground, makes beholder watch suitable stereopsis.
Further, grating driver module drives liquid crystal grating by the electrode conveying voltage to liquid crystal grating.
When beholder moves both vertically between display screen, when beholder distance display screen too closely or too far away time, grating driver module drive liquid crystal grating be called plano lens, namely do not change the direction of propagation of light yet, now display screen correspondingly switches to display 2D image information, carries out 2D display.
Step S5, display screen displays image information.
When carrying out 3D display, in the image information shown by described display screen, comprise the anaglyph of left eye and right eye.
When carrying out 2D display, described grating driver module drives described liquid crystal grating, makes light through described liquid crystal grating, and can not change the transmission direction of light.
Refer to Fig. 5, it is that a kind of bore hole solid of the present invention follows the trail of display unit first embodiment schematic diagram.
The invention provides a kind of bore hole solid and follow the trail of display unit, it comprises: image acquisition device 100, image processor 200, spider module 300, index module 400, grating driver module 500, liquid crystal grating 600, and display screen 700.Wherein, described liquid crystal grating 600 is liquid crystal slit gratings.
Image acquisition device 100, for gathering the image of beholder.In the present embodiment, image acquisition device 100 is camera, utilizes the image of this camera Real-time Collection beholder.
Image processor 200, for obtaining facial image in the image of the beholder collected, and calculates the position determining beholder according to described facial image.Image processor 200 and image acquisition device 100 are interconnected, and image processor 200 can be processor or single-chip microcomputer.Except, determine outside the position of beholder according to the area of facial image and the relation of standard faces area, image processor 200 can also determine the distance of beholder's distance display screen 700 according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes.Preferably, described image processor 200 comprises distance determination module (not shown), what according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes, described distance determination module determined that beholder is parallel to display screen 700 moves horizontally distance, certainly, the vertical displacement of beholder perpendicular to display screen 700 can also be determined.
Spider module 300, for the position according to described beholder, in beholder position with mutually corresponding concordance list, search liquid crystal grating 600 state value corresponding to position of the beholder that image processor 200 is determined, described liquid crystal grating 600 state value comprises each raster unit type of drive separately in multiple adjacent raster unit and described multiple adjacent raster unit.In the present embodiment, described type of drive comprises the first driving condition and the second driving condition, when grating driver module 500 drives that in liquid crystal grating 600, a raster unit makes it be in the first driving condition, light therethrough is in the raster unit of the first driving condition; When grating driver module 500 drives in liquid crystal grating 600 raster unit to make it belong to the second driving condition, light can not through the raster unit being in the second driving condition.Specifically can referring to Fig. 2 and above to the description of Fig. 2.
Further, consult Fig. 3, then illustrated by example below, wherein, position A and B of beholder, moves horizontally distance for what be parallel to display screen:
In the first moment, image processor 200 determines that the position of beholder is: the position A of beholder, spider module 300 is in concordance list, liquid crystal grating 600 state value A ': raster unit a corresponding to the A of position finding beholder is the first driving condition, raster unit b is the first driving condition, and raster unit c is the second driving condition, and raster unit d is the second driving condition, raster unit e is the second driving condition, and raster unit f is the second driving condition.
In the second moment, image processor 200 determines that the position of beholder is: the position B of beholder, spider module 300 is in concordance list, liquid crystal grating 600 state value B ': raster unit a corresponding to the B of position finding beholder is the second driving condition, raster unit b is the first driving condition, and raster unit c is the first driving condition, and raster unit d is the second driving condition, raster unit e is the second driving condition, and raster unit f is the second driving condition.
Described concordance list is stored in index module 400.
Grating driver module 500, for liquid crystal grating 600 state value found according to described spider module 300, drives liquid crystal grating 600.1,2,3,4,5,6 expression pixel or sub-pixels in figure above Fig. 4.Middle plot was shown in for the first moment, and by the driving of grating driver module 500, the raster unit a of liquid crystal grating 600 is the first driving condition, printing opacity, and raster unit b is the first driving condition, printing opacity; And raster unit c is the second driving condition, raster unit d is the second driving condition, and raster unit e is the second driving condition, and raster unit f is the second driving condition, neither printing opacity.Lower diagrams was shown in for the second moment, and by the driving of grating driver module 500, the raster unit a of liquid crystal grating 600 is the second driving condition, light tight, and raster unit b is the first driving condition, printing opacity, and raster unit c is the first driving condition, printing opacity; And raster unit d is the second driving condition, raster unit e is the second driving condition, and raster unit f is the second driving condition, neither printing opacity.
Also be, beholder is in the change in location in the first moment and the second moment, the printing opacity of liquid crystal grating 600 and lighttight position is caused also to change, make to correspondence light still via liquid crystal grating 600, be transferred to the right and left eyes of beholder, achieve the change in location according to beholder, adjustment light transmission direction, correspondence ground, makes beholder watch suitable stereopsis.
In addition, when beholder moves both vertically between display screen 700, when beholder distance display screen 700 too closely or too far away time, grating driver module drives liquid crystal grating to be called plano lens, the direction of propagation of light is not namely changed yet, now display screen correspondingly switches to display 2D image information, carries out 2D display.
Display screen 700, is disposed adjacent, for displays image information with described liquid crystal grating 600.
Refer to Fig. 6, it is that a kind of bore hole solid of the present invention follows the trail of display unit second embodiment schematic diagram.
Compared to the first embodiment, its difference is: liquid crystal grating 800 is liquid crystal lens gratings.
Refer to Fig. 7, it is that a kind of bore hole solid of the present invention follows the trail of display unit the 3rd embodiment schematic diagram.
Compared to the first embodiment, its difference is: spider module 900, also for driving display screen, is electrically connected mutually with described display screen.In the present embodiment, spider module 900 is processor, not only can drive display screen, also can drive liquid crystal grating by grating driver module.
The embodiment of the present invention adopts image acquisition device and image processor to determine the position of beholder, according to the position of beholder, adjust liquid crystal grating accordingly, the direction of light transmission is also changed thereupon, still reach the right and left eyes of beholder, thus the adjustment stereo display region, locus achieved according to beholder, make beholder can see 3D display effect all the time in the process of movement.In addition, liquid crystal grating of the present invention can be mutually compatible with existing LCD process technique, easily realizes batch production, and can realize 2D/3D switching.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (8)
1. the three-dimensional track display method of bore hole, is characterized in that, comprising:
Image acquisition device gathers the image of beholder;
Image processor obtains facial image in the image of the beholder collected, and the position determining beholder is calculated according to described facial image, that determines that beholder is parallel to display screen according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes moves horizontally distance;
Spider module is according to the position of described beholder, in beholder position with mutually corresponding concordance list, search the liquid crystal grating state value corresponding to position of the beholder that image processor is determined, described liquid crystal grating state value comprises each raster unit type of drive separately in multiple adjacent raster unit and described multiple adjacent raster unit;
The liquid crystal grating state value that grating driver module finds according to described spider module, drives liquid crystal grating;
Display screen displays image information.
2. the three-dimensional track display method of a kind of bore hole according to claim 1, it is characterized in that, described type of drive comprises the first driving condition and the second driving condition, when in grating driver module driving liquid crystal grating, a raster unit makes it be in the first driving condition, light therethrough is in the raster unit of the first driving condition; When grating driver module drives a raster unit in liquid crystal grating to make it belong to the second driving condition, light can not through the raster unit being in the second driving condition.
3. the three-dimensional track display method of a kind of bore hole according to claim 1, it is characterized in that, described concordance list is stored in index module.
4. the three-dimensional track display method of a kind of bore hole according to claim 1, it is characterized in that, described liquid crystal grating is liquid crystal slit grating or liquid crystal lens grating.
5. bore hole solid follows the trail of a display unit, it is characterized in that, comprising:
Image acquisition device, for gathering the image of beholder;
Image processor, for obtaining facial image in the image of the beholder collected, and the position determining beholder is calculated according to described facial image, described image processor comprises distance determination module, and what according to the distance in described facial image between right and left eyes and the distance between average face right and left eyes, described distance determination module determined that beholder is parallel to display screen moves horizontally distance;
Spider module, for the position according to described beholder, in beholder position with mutually corresponding concordance list, search the liquid crystal grating state value corresponding to position of the beholder that image processor is determined, described liquid crystal grating state value comprises each raster unit type of drive separately in multiple adjacent raster unit and described multiple adjacent raster unit, spider module, also for driving display screen, is electrically connected mutually with described display screen;
Grating driver module, for the liquid crystal grating state value found according to described spider module, drives liquid crystal grating; And
Display screen, is disposed adjacent with described liquid crystal grating, for displays image information.
6. a kind of bore hole solid according to claim 5 follows the trail of display unit, it is characterized in that, described type of drive comprises the first driving condition and the second driving condition, when in grating driver module driving liquid crystal grating, a raster unit makes it be in the first driving condition, light therethrough is in the raster unit of the first driving condition; When grating driver module drives a raster unit in liquid crystal grating to make it belong to the second driving condition, light can not through the raster unit being in the second driving condition.
7. a kind of bore hole solid according to claim 5 follows the trail of display unit, and it is characterized in that, also comprise index module, described concordance list is stored in index module.
8. a kind of bore hole solid according to claim 5 follows the trail of display unit, and it is characterized in that, described liquid crystal grating is liquid crystal slit grating or liquid crystal lens grating.
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