CN104581113B - Adaptive holographic display methods and holographic display based on viewing angle - Google Patents
Adaptive holographic display methods and holographic display based on viewing angle Download PDFInfo
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Abstract
The invention discloses a kind of adaptive holographic display methods and holographic display based on viewing angle, the adaptive holographic display methods based on viewing angle includes the eye image of real-time tracing beholder, and determines the center between eyes according to the eye image；The eye image is analyzed to determine the specific location of beholder's viewpoint on the display screen；Judge whether the center between the eyes is vertical with the plane of the display screen with the line of the specific location；And when the plane out of plumb of the line and the display screen, reduce the conversion depth of field of the 3D rendering of display.By the above-mentioned means, the present invention can make beholder to watch clearly 3D images in any position.
Description
Technical field
The present invention relates to holographic display field, is shown more particularly to a kind of depth of field based on human eye viewing angle is adaptive
Show method and holographic display.
Background technology
People can clearly see an object, generally require the distant relationships of orienting the object actually seen and
Can clearly obtain object on the retina into picture the two processes.Both processes are generally referred to as eyeball influx
Adjusted with eyeball.Eyeball adjust refer to the process of eyeball by varying focus on obtain object clearly as.Eyeball influx refers to
Object is sitting at the process of eyes central fovea of macula image areas, i.e. eyes positioning object front and back position or the depth of field on the retina
Process.
On the basis of above-mentioned principle, holography has been invented, by handling the image of display, so that
People can also enjoy 3D rendering by display screen.However, the 3D images that holographic display of the prior art is shown, and
It is not that user can see clearly 3D rendering in each position, either angle or distance has an optimal viewing model
Enclose, if having left this scope, be just no longer able to enjoy clearly 3D rendering.
The content of the invention
The invention mainly solves the technical problem of providing a kind of adaptive holographic display methods based on viewing angle and
Holographic display, can make beholder to watch clearly 3D images in any position.
In order to solve the above technical problems, one aspect of the present invention is：There is provided a kind of based on viewing angle
Adaptive holography display methods, including：
The eye image of real-time tracing beholder, and the center between eyes is determined according to the eye image；
The eye image is analyzed to determine the specific location of beholder's viewpoint on the display screen；
Judge whether center between the eyes and the line of the specific location are flat with the display screen
Face is vertical；And
When the plane out of plumb of the line and the display screen, reduce the conversion depth of field of the 3D rendering of display.
Wherein, it is described when the plane out of plumb of the line and the display screen, reduce turn of the 3D rendering of display
The deep step that shifts the scenes includes：
Depth of field parameter is determined by 3D interleaving algorithms, and shows that the left and right of image regards according to the depth of field parameter change
The offset of figure changes the depth of field to reduce the 3D of the display image.
Wherein, it is described when the plane out of plumb of the line and the display screen, reduce turn of the 3D rendering of display
Following steps are further included after the deep step that shifts the scenes：
Prompt message is ejected, to remind the beholder to be adjusted viewing location.
Wherein, it is described when the plane out of plumb of the line and the display screen, reduce turn of the 3D rendering of display
Following steps are further included after the deep step that shifts the scenes,
When the line is vertical with the plane of the display screen, increase the conversion depth of field of the 3D rendering of display.
Wherein, the eye image of the real-time tracing beholder, and determined between eyes according to the eye image
The step of heart position, specifically includes：
Determine that eyes are believed relative to the first coordinate information of screen and the second coordinate according to the eye image tracked
Breath；
Of the center between the eyes is determined according to first coordinate information and second coordinate information
Three coordinate informations.
Wherein, the line of the center judged between the eyes and the specific location whether with the display
The step that the plane of screen is vertical specifically includes：
The center between the eyes is determined according to the coordinate information of the 3rd coordinate information and the specific location
The line of position and the specific location judges whether the angle is 90 degree relative to the angle of the display screen plane.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of holographic display is provided,
Including：Tracing module, control module and depth of field adjustment module,
The tracing module be used for real-time tracing beholder eye image, and according to the eye image determine eyes it
Between center；
The control module is used to analyze the eye image to determine the specific position of beholder's viewpoint on the display screen
Put；
The control module be additionally operable to judge center between the eyes and the specific location line whether
It is vertical with the plane of the display screen；
When the depth of field adjustment module is used for the plane out of plumb in the line and the display screen, reduce display
The conversion depth of field of 3D rendering.
Wherein, the depth of field adjustment module is specifically used for determining depth of field parameter by 3D interleaving algorithms, and according to the scape
Deep parameter reduces the conversion depth of field of the 3D rendering of the display.
Wherein, the holographic display further includes display module, the display module be used for the line with it is described
During the plane out of plumb of display screen, prompt message is ejected, to remind the beholder to be adjusted viewing location.
Wherein, the depth of field adjustment module is additionally operable to when the line is vertical with the plane of the display screen, increase
The conversion depth of field of the 3D rendering of display.
The beneficial effects of the invention are as follows：Be different from the situation of the prior art, present embodiment based on viewing angle from
The eye image of holographic display methods real-time tracing beholder is adapted to, and the centre bit between eyes is determined according to eye image
Put；The eye image is analyzed to determine the specific location of beholder's viewpoint on the display screen, judges the center between eyes
Whether the line of specific location of the position with beholder's viewpoint on the display screen is vertical with the plane of display screen；Line with
During the plane out of plumb of display screen, reduce the conversion depth of field of the 3D rendering of display, turned by the 3D for reducing holographic display
Shift the scenes depth, beholder is watched clearly 3D images in any position, increases user experience.
Brief description of the drawings
Fig. 1 is the flow diagram of adaptive holographic display methods one embodiment of the present invention based on viewing angle；
Fig. 2 is the structure diagram of one embodiment of adaptive display system of the invention；
The structure diagram of adaptive holographic display methods one embodiments of Fig. 3 A Fig. 1 based on viewing angle；
The structure diagram of adaptive holographic display methods another embodiments of Fig. 3 B Fig. 1 based on viewing angle；
The flow diagram of adaptive holographic display methods another embodiment of Fig. 4 present invention based on viewing angle；
Fig. 5 is the flow diagram of adaptive holographic display methods another embodiment of the present invention based on viewing angle；
Fig. 6 is the flow diagram of adaptive holographic display methods a further embodiment of the present invention based on viewing angle；
Fig. 7 is the structure diagram of one embodiment of holographic display of the present invention；
Fig. 8 is the structure diagram of another embodiment of holographic display of the present invention.
Embodiment
Refering to Fig. 1, Fig. 1 is the stream of depth of field adaptive display method one embodiment of the invention based on human eye viewing angle
Journey schematic diagram, the adaptive display method of present embodiment include：
101：The eye image of real-time tracing beholder, and the centre bit between eyes is determined according to the eye image
Put.
Holographic display in order to the position adjustment according to human eye it is corresponding it is holographic show image, generally by camera come
Obtain eye image.As shown in Fig. 2, the holographic display system of present embodiment includes holographic display 201 and camera
202, wherein, camera 202 is electrically connected with holographic display 301, is used for as the front end of the holographic display 301
Obtain eye image 203.Wherein, 201 position of the camera 202 in Fig. 2 and holographic display is relative position, rather than
Limit.
Wherein, holographic display 201 generally comprises common large-scale holographic display, such as 3D projectors, also includes
3D intelligent mobile terminals, such as 3D smart mobile phones, as long as the device of 3D rendering can be shown, do not limit herein, camera
Type does not also limit, such as the camera as 3D projectors front end, for another example front camera of smart mobile phone etc..
Specifically, holographic display determines eyes relative to the first coordinate information of screen and second according to eye image
Coordinate information, wherein, the first coordinate information and the second coordinate information are the spatial coordinated informations relative to screen, at one preferably
Embodiment in, using screen centre position as coordinate origin, to facilitate follow-up calculating, in other embodiments, also may be used
For coordinate origin, such as any position of screen, not limit herein elsewhere.And sat according to the first coordinate information and second
Mark information determines the 3rd coordinate information of the center between beholder's eyes.
102：The eye image is analyzed to determine the specific location of beholder's viewpoint on the display screen.
In general, when the eyes of people are seen to different directions, eye has trickle change, these changes can produce can
With the feature of extraction, holographic display can extract these features by catching or scanning to eye image, so as to chase after in real time
The change of track eyes, further determines the specific location on the display screen of beholder's viewpoint by the change of eye.It is above-mentioned
Technology is commonly referred to as eyeball tracking, and holographic display is exactly just to be analyzed by the eye image to tracking, and passes through eyeball
Tracer technique determines the specific location of beholder's viewpoint on the display screen.
In another embodiment, beholder's viewpoint can also be determined on the display screen by the method for infrared test
Specific location, do not limit herein.
103：Judge center between the eyes and the specific location line whether with the display screen
Plane it is vertical.
Under normal circumstances, if center between beholder's eyes and beholder's viewpoint on the display screen specific
The line of position and the plane of display screen are perpendicular, as shown in Figure 3A, central point A and beholder's viewpoint between eyes 303
It is optimal viewing angle when angle theta between the line and display screen 301 of specific location B on the display screen is 90 degree,
Beholder can watch more clearly 3D rendering, and holographic display does not make any adjustments at this time.
Specifically, holographic display determines that the 3rd coordinate of the center A between eyes is believed in the present embodiment
After breath, the coordinate information of the specific location B of beholder's viewpoint on the display screen is further determined that, believe further according to the coordinate of A and B
Breath determines the linear equation of the straight line AB where the two line, specifically, can directly be represented by point coordinates equation, then basis
The linear equation of straight line AB determines the angle with display screen plane, and judges whether above-mentioned angle is 90 degree.
In another embodiment, the center between eyes and beholder can also be determined by other means
The line of the specific location of viewpoint on the display screen is such as sentenced relative to the angle of the display screen plane by distance
It is disconnected.
Holographic display detects first distance of the center between eyes relative to screen centre position, preferably
Ground, holographic display detect the first distance by infrared distance measurement instrument, in other embodiments, can also pass through other
Mode is detected, and is not herein limited.
104：When the plane out of plumb of the line and the display screen, reduce the conversion scape of the 3D rendering of display
It is deep.
If the company of the center A and specific location B of beholder's viewpoint on the display screen between beholder's eyes
The plane of line and display screen 301 is not perpendicular, and as shown in Figure 3B, the central point A between eyes 303 is with beholder's viewpoint aobvious
When angle theta between the line and display screen 301 of specific location B on display screen curtain is not 90 degree, such as less than 90 degree, in order to make
Beholder can watch the preferably holographic display effect of effect, and holographic display reduces the conversion scape of the 3D rendering of display
It is deep.
Due to, when human eye watches object, object is imaged on eyeball by light principle, and imaging is transferred to brain,
Feel the picture of object.But when object is removed, optic nerve will not disappear the impression of object immediately, and continue about 0.1
The time of second, this phenomenon of human eye are referred to as the visual persistence phenomenon of eyes.
Specifically, 3D rendering is usually in units of frame, since the 3D rendering of each frame includes left and right two width not
It is alternately to play left and right image when playing 3D rendering with the picture of angle shot, accordingly, the images of left and right eyes difference of people
Corresponding left and right image is received, when above-mentioned left eye data image and right eye data image switch in the given time
When, since left eye is there are persistence of vision effect, the impression of left eye data image does not disappear also, slightly poor with left eye data image
Other right eye data image occurs again, then by brain by two images integrator come the 3D visual effects realized.
Therefore, deviating to reduce the conversion depth of field of the 3D rendering for the left and right view of image can be shown by reducing,
Seeing beholder must become apparent from.
Specifically, holographic display determines depth of field parameter by 3D interleaving algorithms, and according to the depth of field parameter change
The offset of the left and right view of the display image, reduces the conversion depth of field of the 3D rendering.
The situation of the prior art is different from, the adaptive holographic display methods based on viewing angle of present embodiment is real-time
The eye image of beholder is followed the trail of, and the center between eyes is determined according to eye image；Analyze the eye image with
Determine the specific location of beholder's viewpoint on the display screen, judge that the center between eyes is being shown with beholder's viewpoint
Whether the line of the specific location on screen is vertical with the plane of display screen；In the plane out of plumb of line and display screen
When, reduce the conversion depth of field of the 3D rendering of display, the depth of field is changed by the 3D for reducing holographic display, makes beholder any
Position can watch clearly 3D images, increase user experience.
In another embodiment, as shown in figure 4, Fig. 4 is adaptive holographic display of the present invention based on viewing angle
The structure diagram of another embodiment of method.
Difference lies in the center between eyes is with beholder's viewpoint aobvious with upper one implementation for present embodiment
The line of specific location on display screen curtain and the plane out of plumb of display screen, reduce the conversion depth of field of the 3D rendering of display
After step 404, further comprise step 405,
Step 405：Prompt message is ejected, to remind the beholder to be adjusted viewing location.
Specifically, holographic display ejects prompt messages such as " please adjust position " on its screen, so that user is clear and definite
The reason for reducing the 3D conversion depth of field for showing image, allows the user to carry out its viewing location according to above-mentioned prompt message pair
It should adjust, so as to make beholder watch clear effective 3D rendering.In other embodiments, holographic display
Other prompt messages can be ejected, such as " current viewing position is improper " or other prompt messages, do not limited herein.
In addition, the adaptive display methods of the depth of field based on human eye viewing angle of present embodiment further includes step 401
~404, since step 401~404 are identical with step 101~104 of a upper embodiment, referring specifically to Fig. 1 and correlation
The description of word, details are not described herein.
It is different from the situation of the prior art, the adaptive display side of the depth of field based on human eye viewing angle of present embodiment
The eye image of method real-time tracing beholder, and determine according to eye image the center between eyes；Analyze the human eye
Image judges the center between eyes and beholder's viewpoint to determine the specific location of beholder's viewpoint on the display screen
Whether the line of specific location on the display screen is vertical with the plane of display screen；In the plane of line and display screen not
When vertical, reduce the conversion depth of field of the 3D rendering of display, the depth of field is changed by the 3D for reducing holographic display, beholder is existed
Any position can watch clearly 3D images, increase user experience.
Difference and a upper embodiment, the holographic display methods of present embodiment are reducing the conversion of the 3D rendering shown
After the depth of field, further display is used for the prompt message for showing above-mentioned reason, suggesting effect is played to beholder, so that beholder's energy
It is enough that corresponding adjustment is made according to prompting message, there is clear effective 3D rendering so as to watch more, increase user experience.
In another embodiment, as shown in figure 5, Fig. 5 is that the depth of field of the invention based on human eye viewing angle is adaptive
The another embodiment of display methods flow diagram.
The adaptive display method of present embodiment and the adaptive display method of first embodiment difference lies in,
Reduce the conversion scape of display 3D rendering due to the plane out of plumb of the line and the display screen in holographic display
After depth, further comprise step 505.
505：When the line is vertical with the plane of the display screen, increase the conversion depth of field of the 3D rendering of display.
Holographic display does not stop the acquisition to eye image after the conversion depth of field for showing 3D rendering is reduced,
And eye image is still obtained by camera in real time, and further perform and judge the center between eyes and viewing
The line of the specific location of person's viewpoint on the display screen whether the step vertical with the plane of display screen.
When the line is vertical with the plane of the display screen, the 3D rendering of holographic display increase display turns
Shift the scenes depth, is allowed to return to original image display.
Specifically, holographic display determines depth of field parameter using 3D interleaving algorithms, and is increased according to the depth of field parameter
The offset of the left and right view of the display image, and then increase the conversion depth of field of the 3D rendering.
The adaptive holographic display methods based on viewing angle of present embodiment further includes step 501~504, step
501~504 is identical with step 101~104 of first embodiment, referring specifically to the description of Fig. 1 and its related text,
This is repeated no more.
The situation of the prior art is different from, the adaptive holographic display methods based on viewing angle of present embodiment is real-time
The eye image of beholder is followed the trail of, and the center between eyes is determined according to eye image；Analyze the eye image with
Determine the specific location of beholder's viewpoint on the display screen, judge that the center between eyes is being shown with beholder's viewpoint
Whether the line of the specific location on screen is vertical with the plane of display screen；In the plane out of plumb of line and display screen
When, reduce the conversion depth of field of the 3D rendering of display, the depth of field is changed by the 3D for reducing holographic display, makes beholder any
Position can watch clearly 3D images, increase user experience.
First embodiment is different from, the holographic display methods of present embodiment is reducing the conversion of the 3D rendering shown
After the depth of field, continue to follow the trail of eye image, and in the center between eyes are determined and beholder's viewpoint on the display screen
Specific location line it is vertical with the plane of display screen when, increase the conversion depth of field of the 3D rendering of display, so that display
3D rendering recovers original display effect, so that enabling a viewer to watch more has clear effective 3D rendering, increases user
Experience.
In another embodiment, as shown in fig. 6, Fig. 6 is adaptive holographic display of the present invention based on viewing angle
The flow diagram of method a further embodiment.
Difference lies in performing step 606 according to the people tracked to present embodiment with a upper embodiment
Eye pattern picture determines eyes coordinate, and the step of increase the conversion depth of field of the 3D rendering of display before, further include step 605：Pop-up
Prompt message, to remind the beholder to be adjusted viewing location.
Specifically, holographic display ejects prompt messages such as " please adjust position " on its screen, so that user is clear and definite
The reason for reducing the 3D conversion depth of field for showing image, allows the user to carry out its viewing location according to above-mentioned prompt message pair
It should adjust, so as to watch according to clear effective 3D rendering.In other embodiments, holographic display can also
Other prompt messages are ejected, such as " current viewing position is improper " or other prompt messages, do not limited herein.
The prior art is different from, the adaptive holographic display methods based on viewing angle of present embodiment is in definite eyes
Between center and the line of the specific location of beholder's viewpoint on the display screen and the plane out of plumb of display screen
When, reduce the conversion depth of field of the 3D rendering of display, beholder is watched clearly 3D images in any position.Reducing
After the conversion depth of field of the 3D rendering of display, continue to follow the trail of eye image, and after eye image is tracked, according to the people tracked
Eye pattern picture determines eyes coordinate, and increases the conversion depth of field of the 3D rendering of display, is shown so that the 3D rendering of display recovers original
Show effect, so that enabling a viewer to watch more has clear effective 3D rendering, increase user experience.
It is different from an embodiment, the depth of field adaptive display method based on human eye viewing angle of present embodiment
After the conversion depth of field of 3D rendering of display is reduced, further display is used for the prompt message for showing above-mentioned reason, to beholder
Suggesting effect is played, to enable a viewer to make corresponding adjustment according to prompting message, is had clearly so as to watch more
Effective 3D rendering, increases user experience.
Refering to Fig. 7, Fig. 7 is the structure diagram of one embodiment of holographic display of the present invention.Present embodiment it is complete
Breath display device includes tracing module 701, control module 702 and depth of field adjustment module 703.
Tracing module 701 be used for real-time tracing beholder eye image, and according to the eye image determine eyes it
Between center.For the corresponding holographic display image of the position adjustment according to human eye, general tracing module 701 passes through shooting
Head obtains eye image.Generally, camera is as the front end of the holographic display, and holographic display electrical wiring,
For obtaining eye image.But camera and holographic display are not limited to lifting position.
Wherein, holographic display includes common large-scale holographic display, such as 3D projectors, also including 3D intelligent slidings
Dynamic terminal, such as 3D smart mobile phones, as long as the device of 3D rendering can be shown, does not limit herein, and the type of camera is not yet
Limit, such as the camera as 3D projectors front end, for another example front camera of smart mobile phone etc..
Specifically, tracing module 701 determines eyes relative to the first coordinate information of screen and second according to eye image
Coordinate information, wherein, the first coordinate information and the second coordinate information are the spatial coordinated informations relative to display screen, at one
In preferred embodiment, tracing module 701 is using screen centre position as coordinate origin, to facilitate follow-up calculating, at other
In embodiment, it can also be elsewhere coordinate origin, such as any position of display screen, not limit herein.And according to
First coordinate information and the second coordinate information determine the 3rd coordinate information of the center between beholder's eyes.
Control module 702 is used to analyze the eye image to determine the specific position of beholder's viewpoint on the display screen
Put.
In general, when the eyes of people are seen to different directions, eye has trickle change, these changes can produce can
With the feature of extraction, holographic display can extract these features by catching or scanning to eye image, so as to chase after in real time
The change of track eyes, further determines the specific location on the display screen of beholder's viewpoint by the change of eye.It is above-mentioned
Technology is commonly referred to as eyeball tracking, and control module 702 is exactly just to be analyzed by the eye image to tracking, and is chased after by eyeball
Track technology determines the specific location of beholder's viewpoint on the display screen.
In another embodiment, beholder's viewpoint can also be determined on the display screen by the method for infrared test
Specific location, do not limit herein.
Control module 702 is additionally operable to judge center between the eyes and beholder's viewpoint on the display screen
Whether the line of specific location is vertical with the plane of the display screen.
Under normal circumstances, if center between beholder's eyes and beholder's viewpoint on the display screen specific
The line of position and the plane of display screen are perpendicular, i.e., the central point between eyes and beholder's viewpoint are on the display screen
It is optimal viewing angle, beholder is it can be seen that effect when angle between the line and display screen of specific location is 90 degree
Optimal 3D rendering, at this time holographic display do not make any adjustments.
Specifically, after tracing module 701 determines the 3rd coordinate information of the center between eyes, control module 702
Further determine that the coordinate information of the specific location of beholder's viewpoint on the display screen, it is true further according to above-mentioned two coordinate information
The linear equation of straight line where the two fixed line, specifically, can directly be represented by point coordinates equation, then according to the straight of straight line
Line equation determines the angle with display screen plane, and judges whether above-mentioned angle is 90 degree.
In another embodiment, control module 702 can also determine the center between eyes by other means
The line of position and the specific location of beholder's viewpoint on the display screen relative to the display screen plane angle, herein
Do not limit.
When depth of field adjustment module 703 is used for the plane out of plumb in the line and the display screen, reduce display
The conversion depth of field of 3D rendering.
If control module 702 determines center between beholder's eyes and beholder's viewpoint on the display screen
The line of specific location and the plane of display screen be not perpendicular, i.e., the central point between eyes is with beholder's viewpoint in display screen
When angle theta between the line and display screen of specific location on curtain is not 90 degree, such as less than 90 degree, in order to enable beholder
The preferably holographic display effect of effect is enough watched, depth of field adjustment module 703 reduces the conversion depth of field of the 3D rendering of display.
Due to, when human eye watches object, object is imaged on eyeball by light principle, and imaging is transferred to brain,
Feel the picture of object.But when object is removed, optic nerve will not disappear the impression of object immediately, and continue about 0.1
The time of second, this phenomenon of human eye are referred to as the visual persistence phenomenon of eyes.
Specifically, 3D rendering is usually in units of frame, since the 3D rendering of each frame includes left and right two width not
It is alternately to play left and right image when playing 3D rendering with the picture of angle shot, accordingly, the images of left and right eyes difference of people
Corresponding left and right image is received, when above-mentioned left eye data image and right eye data image switch in the given time
When, since left eye is there are persistence of vision effect, the impression of left eye data image does not disappear also, slightly poor with left eye data image
Other right eye data image occurs again, then by brain by two images integrator come the 3D visual effects realized.
Therefore, depth of field adjustment module 703 can reduce the 3D by reducing the offset for the left and right view for showing image
The conversion depth of field of image, seeing beholder must become apparent from.
Specifically, depth of field adjustment module 703 determines depth of field parameter by 3D interleaving algorithms, and is changed according to the depth of field parameter
Become the offset of the left and right view of the display image, reduce the conversion depth of field of the 3D rendering.
It is different from the situation of the prior art, the eye image of the tracing module real-time tracing beholder of present embodiment, and
The center between eyes is determined according to eye image；Control module analyzes the eye image to determine that beholder's viewpoint exists
Specific location on display screen, and judge the center between eyes and the specific position of beholder's viewpoint on the display screen
Whether the line put is vertical with the plane of display screen；Plane out of plumb of the depth of field adjustment module in above-mentioned line and display screen
When, reduce the conversion depth of field of the 3D rendering of display, the depth of field is changed by the 3D for reducing holographic display, makes beholder any
Position can watch clearly 3D images, increase user experience.
In another embodiment, tracing module is additionally operable in depth of field adjustment module due to the center between eyes
Reduce the 3D of display with the line of the specific location of beholder's viewpoint on the display screen and the plane out of plumb of display screen
After the depth of field of image, continue to follow the trail of eye image.When the eye image that judgment module can be tracked according to tracing module determines
During eyes coordinate, depth of field adjustment module is further used for the conversion depth of field of the 3D rendering of increase display, is allowed to return to original
Image display.
Specifically, holographic display determines depth of field parameter using 3D interleaving algorithms, and is increased according to the depth of field parameter
The offset of the left and right view of the display image, and then increase the conversion depth of field of the 3D rendering.
It is different from the prior art, the center of the judgment module of present embodiment between eyes are determined is regarded with beholder
During the plane out of plumb of the line of point specific location on the display screen and display screen, depth of field adjustment module reduces display
The conversion depth of field of 3D rendering, changes the depth of field by the 3D for reducing holographic display, beholder is watched in any position
To clearly 3D images, increase user experience.
First embodiment is different from, the tracing module of present embodiment reduces the 3D figures of display in depth of field adjustment module
After the conversion depth of field of picture, continue to follow the trail of eye image, judgment module further determines the center between eyes according to eye image
Whether the line of specific location of the position with beholder's viewpoint on the display screen and the plane of display screen are vertical, and are determining
When vertical, the conversion depth of field of the 3D rendering of depth of field adjustment module increase display, so that the 3D rendering of display recovers original display
Effect, so that enabling a viewer to watch more has clear effective 3D rendering, increases user experience.
In another embodiment, referring to Fig. 8, Fig. 8 is the knot of another embodiment of holographic display of the present invention
Structure schematic diagram.The holographic display of present embodiment is except including the tracing module 801 in a upper embodiment, judging mould
Outside block 802, depth of field adjustment module 803, display module 804 is further included.
Display module 804 is used for ejecting prompt message, to remind the beholder to be adjusted viewing location.
Specifically, display module ejects prompt messages such as " please adjust position " on its screen, so that user clearly reduces
The reason for showing the 3D conversion depth of field of image, allows the user to that its viewing location is carried out according to above-mentioned prompt message to correspond to tune
It is whole, so as to watch according to clear effective 3D rendering.In other embodiments, display module can also eject other
Prompt message, such as " current viewing position is improper " or other prompt messages, do not limit herein.
It is different from the prior art, the eye image of the tracing module real-time tracing beholder of present embodiment, and according to people
Eye pattern picture determines the center between eyes；Control module judges that the center between eyes is being shown with beholder's viewpoint
Whether the line of the specific location on screen is vertical with the plane of display screen；Depth of field adjustment module is in above-mentioned line and display screen
During the plane out of plumb of curtain, reduce the conversion depth of field of the 3D rendering of display, the depth of field changed by the 3D for reducing holographic display,
Beholder is watched clearly 3D images in any position, increase user experience.
An embodiment is different from, the display module of present embodiment reduces the 3D figures of display in depth of field adjustment module
After the conversion depth of field of picture, further display is used for the prompt message for showing above-mentioned reason, and suggesting effect is played to beholder, so that
Beholder can make corresponding adjustment according to prompting message, have clear effective 3D rendering, increase so as to watch more
User experience.
The foregoing is merely embodiments of the present invention, are not intended to limit the scope of the invention, every to utilize this
The equivalent structure or equivalent flow shift that description of the invention and accompanying drawing content are made, it is relevant to be directly or indirectly used in other
Technical field, is included within the scope of the present invention.
Claims (6)
- A kind of 1. adaptive holographic display methods based on viewing angle, it is characterised in that including：The eye image of real-time tracing beholder, and the center between eyes is determined according to the eye image, it is specially： First coordinate information and second coordinate information of the eyes relative to screen are determined according to the eye image tracked；Determine that the 3rd of the center between the eyes sits according to first coordinate information and second coordinate information Mark information；The eye image is analyzed to determine the specific location of beholder's viewpoint on the display screen；Judge whether the line of center between the eyes and the specific location hangs down with the plane of the display screen Directly, it is specially：The center between the eyes is determined according to the coordinate information of the 3rd coordinate information and the specific location Line with the specific location judges whether the angle is 90 degree relative to the angle of the display screen plane；AndWhen the plane out of plumb of the line and the display screen, reduce the conversion depth of field of the 3D rendering of display；When described When line is vertical with the plane of the display screen, increase the conversion depth of field of the 3D rendering of display, be allowed to return to original figure As display.
- 2. according to the method described in claim 1, it is characterized in that, the plane when the line and the display screen not When vertical, the step of conversion depth of field for the 3D rendering for reducing display, includes：Depth of field parameter is determined by 3D interleaving algorithms, and show according to the depth of field parameter change left and right view of image Deviate and change the depth of field to reduce the 3D of the display image.
- 3. according to the method described in claim 1, it is characterized in that, the plane when the line and the display screen not When vertical, the step of the conversion depth of field for the 3D rendering for reducing display after further include following steps：Prompt message is ejected, to remind the beholder to be adjusted viewing location.
- 4. a kind of holographic display, it is characterised in that the holographic display includes：Tracing module, control module and Depth of field adjustment module, the tracing module are used for the eye image of real-time tracing beholder, and are determined according to the eye image Center between eyes, is specially：Determine that eyes are sat relative to the first of screen according to the eye image tracked Mark information and the second coordinate information；Determined according to first coordinate information and second coordinate information between the eyes 3rd coordinate information of center；The control module is used to analyze the eye image to determine that beholder's viewpoint is being shown Specific location on screen；The control module is additionally operable to judge the center and the specific location between the eyes Whether line is vertical with the plane of the display screen, is specially：According to the 3rd coordinate information and the specific location Coordinate information determine that center between the eyes and the line of the specific location are put down relative to the display screen The angle in face, judges whether the angle is 90 degree；The depth of field adjustment module is used in the line and the display screen Plane out of plumb when, reduce the conversion depth of field of the 3D rendering of display；The depth of field adjustment module be additionally operable to the line with When the plane of the display screen is vertical, increase the conversion depth of field of the 3D rendering of display, it is allowed to return to original image display。
- 5. holographic display according to claim 4, it is characterised in that the depth of field adjustment module is specifically used for passing through 3D interleaving algorithms determine depth of field parameter, and the conversion depth of field of the 3D rendering according to the depth of field parameter reduction display.
- 6. holographic display according to claim 4, it is characterised in that the holographic display further includes display mould Block, when the display module is used for the plane out of plumb in the line and the display screen, ejects prompt message, to remind The beholder is adjusted viewing location.
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| WO2018058673A1 (en) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | 3d display method and user terminal |
| CN109584285B (en) * | 2017-09-29 | 2024-03-29 | 中兴通讯股份有限公司 | Control method and device for display content and computer readable medium |
| CN108419068A (en) * | 2018-05-25 | 2018-08-17 | 张家港康得新光电材料有限公司 | A kind of 3D rendering treating method and apparatus |
| US11048375B2 (en) * | 2018-09-18 | 2021-06-29 | Alibaba Group Holding Limited | Multimodal 3D object interaction system |
| CN110826414A (en) * | 2019-10-10 | 2020-02-21 | 珠海格力电器股份有限公司 | Display control method and device of mobile terminal, terminal and medium |
| CN113742012A (en) * | 2021-07-23 | 2021-12-03 | 上海闻泰信息技术有限公司 | Screen display method, device, equipment and storage medium |
| TWI806376B (en) * | 2022-01-22 | 2023-06-21 | 宏碁股份有限公司 | Stereoscopic image generation box, stereoscopic image display method and stereoscopic image display system |
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| US8446461B2 (en) * | 2010-07-23 | 2013-05-21 | Superd Co. Ltd. | Three-dimensional (3D) display method and system |
| CN102158721B (en) * | 2011-04-06 | 2012-12-05 | 青岛海信电器股份有限公司 | Method and device for adjusting three-dimensional image and television |
| CN102970550A (en) * | 2011-09-01 | 2013-03-13 | 联想移动通信科技有限公司 | Open hole visible three-dimensional (3D) display control system and method |
| CN102752621A (en) * | 2012-06-26 | 2012-10-24 | 京东方科技集团股份有限公司 | Depth-of-field retaining device, 3D (three-dimensional) display device and display method |
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