CN104601980A - Glass tracking-based holographic display device, system and method - Google Patents
Glass tracking-based holographic display device, system and method Download PDFInfo
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- CN104601980A CN104601980A CN201410850583.7A CN201410850583A CN104601980A CN 104601980 A CN104601980 A CN 104601980A CN 201410850583 A CN201410850583 A CN 201410850583A CN 104601980 A CN104601980 A CN 104601980A
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Abstract
The invention discloses a glass tracking-based holographic display device, system and method. The holographic display device comprises a camera, a holographic scene generating unit and an electronic grating which are electrically connected with an image processing unit respectively. The camera is used for obtaining the position information of shutter glasses, the shutter glasses are composed of a left lens, a right lens and a glass frame, wherein the glass frame is coated with reflecting materials or fluorescent materials; the image processing unit is used for, according to the position information of the shutter glasses, generating a first signal of a holographic scene corresponding to left and right visual channels and a second signal controlling the working angle of the electronic grating; the holographic scene generating unit is used for generating left and right visual channel holographic scenes according to the first signal and sending the left and right visual channel holographic scenes to a display screen for display; the electronic grating is used for adjusting the working angle according to the second signal. Therefore, the glass tracking-based holographic display device enables viewers to be free from restriction of light and viewing positions when viewing three-dimensional display images.
Description
Technical field
The present invention relates to holographic display field, particularly relate to a kind of holographic display, the system and method followed the trail of based on glasses.
Background technology
The real world Shang Shi 3 D stereo world, the eyes that it is behaved provide the image that two width have potential difference, namely form the parallax required for vision after mirroring eyes, then through the fusion reaction of optic nerve maincenter, and visually psychoreaction just creates 3 D stereo sensation.
Concrete, people can see an object clearly, generally need to orient the actual object seen distant relationships and can obtain that object becomes on the retina clearly as these two processes.These two kinds of processes are generally referred to as the converge like the spokes of a wheel at the hub and eyeball of eyeball and regulate.Eyeball regulate refer to eyeball by change focus on obtain object clearly as process.Eyeball is converge like the spokes of a wheel at the hub refers to the process that object is sitting at eyes central fovea of macula image areas on the retina, i.e. the process of eyes positioning object front and back position or the depth of field, namely obtains the sensation of stereo display.
But due to the limitation of current dimension display technologies, beholder can enjoy stereoscopically displaying images in all positions, although the technical method followed the trail of is carried out in existence in prior art by human eye, as template matching method, edge extracting method, intensity profile method etc., but the structure of these three-dimensional display apparatus is all comparatively complicated, requires also high to pixel precision, and the tracking that could can only realize in the good situation of light human eye, has a strong impact on the normal use of beholder.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of holographic display, the system and method followed the trail of based on glasses, and beholder can be made when appreciating stereoscopically displaying images not to be subject to the restriction of light and viewing location.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of holographic display followed the trail of based on glasses, comprise display screen, camera and graphics processing unit, holographic scene generation unit and electrical grating, described graphics processing unit is electrically connected with described camera and described holographic scene generation unit and electrical grating respectively
The positional information of shutter glasses of described camera for obtaining beholder and wearing, wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material;
Described graphics processing unit is used for generating the described holographic scene generation unit generation right and left eyes of control according to the positional information of described shutter glasses to be looked the first signal of corresponding holographic scene and controls the secondary signal of electrical grating operating angle;
Described holographic scene generation unit for receiving described first signal, and generates corresponding left and right according to described first signal and looks holographic scene, and described left and right is sent to described display screen depending on the holographic scene in road shows;
Described electrical grating for receiving described secondary signal, and adjusts operating angle according to described secondary signal.
The image of the described shutter glasses that described graphics processing unit obtains according to described camera determines the primary importance information of the central point of described shutter glasses image.
Wherein, described graphics processing unit specifically for:
Obtain the second place information of the central point of described display screen and described primary importance information, determine the line of the central point of described shutter glasses and the central point of described display screen and the first angle of described display screen and described line and its second angle projected on described display screen according to described primary importance information and described second place information;
Described holographic scene generation unit is used for generating corresponding left and right according to described first angle and the second angle and looks holographic scene.
Wherein, described electrical grating is used for adjusting operating angle according to described first angle.
Wherein, described electrical grating comprises: the first glass plate, second glass plate, liquid crystal layer, the first surface of described first glass plate is provided with the first Polarizer, the second surface of described first glass plate the first Polarizer is dorsad provided with the first electrode layer, the first surface of the second glass plate is provided with the second Polarizer, first Polarizer is vertical with the polarization direction of the second Polarizer, and the second surface of the second glass plate the second Polarizer is dorsad provided with the second electrode lay, described the second electrode lay comprises multiple spaced electrode, described liquid crystal layer is located between described first electrode layer and described the second electrode lay, described first electrode layer and described the second electrode lay are for generation of electric field, deflect according to described first angle to make liquid crystal molecule, the light and shade fringe position of grating is made to make adaptive change according to the positional information of described shutter glasses.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of holographic display system of following the trail of based on glasses, comprise shutter glasses and holographic display, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material; Wherein, the opening and closing that described left and right eyeglass replaces, receive the display image light of described holographic display;
The holographic display of described holographic display according to any one of the claims.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of holographic display packing of following the trail of based on glasses, comprising:
Holographic display obtains the positional information of the shutter glasses that beholder wears, and wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material;
Generate control holographic scene generation unit generation right and left eyes according to the positional information of described shutter glasses look the first signal of corresponding holographic scene and control the secondary signal of electrical grating operating angle, generate corresponding left and right according to described first signal and look holographic scene, and show on a display screen;
Adjust according to the operating angle of described secondary signal to electrical grating, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, the holographic scene in You Shi road enters the right eye of described beholder through described electrical grating.
Wherein, described holographic display obtains the positional information of the shutter glasses that beholder wears, and wherein, described shutter glasses comprises left and right eyeglass and picture frame, and the step that described picture frame is coated with reflectorized material or fluorescent material comprises:
The image of the described shutter glasses obtained according to described holographic display determines the primary importance information of the central point of described shutter glasses image.
Wherein, the described positional information according to described shutter glasses generates control holographic scene generation unit generation right and left eyes and looks the first signal of corresponding holographic scene and control the secondary signal of electrical grating operating angle, generates corresponding left and right according to described first signal and look holographic scene, and the step of carrying out on a display screen showing comprises:
Obtain the second place information of the central point of described display screen and described primary importance information, determine the line of the central point of described shutter glasses and the central point of described display screen and the first angle of described display screen and described line and its second angle projected on described display screen according to described primary importance information and described second place information;
Generate corresponding left and right according to described first angle and the second angle and look holographic scene.
Wherein, describedly to adjust according to the operating angle of described secondary signal to electrical grating, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, the holographic scene in You Shi road enters the right eye of described beholder step through described electrical grating comprises:
Adjust operating angle according to described first angle, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, and the holographic scene in You Shi road enters the right eye of described beholder through described electrical grating.
The invention has the beneficial effects as follows: the situation being different from prior art, the holographic display followed the trail of based on glasses of the present invention is coated with the positional information of the shutter glasses of reflectorized material or fluorescent material by the picture frame that camera acquisition beholder wears, determine that the operating angle of holographic scene and electrical grating is looked in left and right, user what position in office is made to enjoy stereoscopically displaying images, and, picture frame is coated with reflectorized material or fluorescent material, make holographic display in dark or the positional information that still can obtain beholder in night, and because shutter glasses is larger relative to the eyes area of beholder, compound with regular structure, more be easy to identify, make the position of holographic display acquisition beholder more accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the execution mode that the present invention is based on the holographic display that glasses are followed the trail of;
Fig. 2 is the structural representation of working method one execution mode of graphics processing unit of the present invention;
Fig. 3 is the structural representation of electrical grating one execution mode of the present invention;
Fig. 4 is the structural representation that the present invention is based on another execution mode of holographic display that glasses are followed the trail of;
Fig. 5 is the structural representation that the present invention is based on holographic display system one execution mode that glasses are followed the trail of;
Fig. 6 is the schematic flow sheet that the present invention is based on holographic display packing one execution mode that glasses are followed the trail of.
Embodiment
Consult Fig. 1, Fig. 1 is the structural representation of the execution mode that the present invention is based on the holographic display that glasses are followed the trail of.Holographic display in present embodiment comprises camera 101, graphics processing unit 102, holographic scene generation unit 103, display screen 104 and electrical grating 105.Wherein, graphics processing unit 102 is electrically connected with described camera 101 and described holographic scene generation unit 103 and electrical grating 104 respectively.
The positional information of shutter glasses of camera 101 for obtaining beholder and wearing.
Because beholder is when watching holographic display image, generally all need to wear shutter glasses, and shutter glasses is larger relative to the eyes area of beholder, compound with regular structure, more be easy to identify, therefore, camera 101 effectively can improve setting accuracy by the positional information of chasing shutter glasses.
Wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material, therefore, when being in dark or night even if current, camera also can Obtaining Accurate to the positional information of shutter glasses.Particularly, camera 101 obtains the image information of the shutter glasses that beholder wears.
Wherein, camera 101 is positioned at the front end of display screen 104, also can be positioned at other positions, as on display screen top, as long as can get the image of the shutter glasses that beholder wears, does not limit at this.
Graphics processing unit 102 is looked the first signal of corresponding holographic scene for generating right and left eyes according to the described holographic scene generation unit 103 of positional information generation control of described shutter glasses and controls the secondary signal of electrical grating 105 operating angle.
Particularly, the primary importance information of the central point of the image determination shutter glasses image of shutter glasses worn according to the beholder that described camera 101 obtains of graphics processing unit 102.Wherein, graphics processing unit 102 is first by the left picture frame of image determination shutter glasses and the location coordinate information of right picture frame of above-mentioned shutter glasses, then the primary importance information of central point according to the position coordinates determination shutter glasses of left picture frame and right picture frame.
Wherein, the primary importance information of the location coordinate information of left picture frame and right picture frame and the central point of shutter glasses is the spatial coordinated information relative to display screen 104, in one preferred embodiment, using the center of display screen 104 as the origin of coordinates, in other embodiments, also can other places be the origin of coordinates, as any position of display screen, not limit at this.Image processing apparatus 102 is after the primary importance information of central point determining shutter glasses, the second place information of the central point of further acquisition display screen 104, and according to above-mentioned primary importance information and the central point of second place information determination shutter glasses and the line of central point of display screen 104 and the first angle of display screen and with described line and the second angle of himself projecting at display screen.
As shown in Figure 2, Fig. 2 is the structural representation of working method one execution mode of graphics processing unit of the present invention.The angle of the line of the central point A of shutter glasses and the central point B of display screen 201 and the bearing of trend of display screen 201 is the first angle 202, the line of the central point A of glasses and the central point B of display screen 201 and himself be the second angle 203 at the angle of the projection of display screen 201.
Wherein, graphics processing unit determines that the method for the first angle does not limit.In an execution mode wherein, graphics processing unit detecting eyes central point is relative to the first distance of screen centre position, preferably, graphics processing unit detects the first distance by infrared distance measurement instrument, in other embodiments, also can detect by other means, not limit at this.
The second distance that graphics processing unit ground obtains between eyes according to the first coordinate information and the second coordinate information, and according to the first angle of the first distance and the line of central point of second distance determination eyes central point and display screen and the angle of the bearing of trend of display screen.
Particularly, graphics processing unit utilizes formula
determine the angle of the center between described eyes relative to described screen.
Wherein, θ is the first angle of the angle of the line of the central point of eyes central point and display screen and the bearing of trend of display screen, and L is the second distance between described eyes, and Z is first distance of the center between described eyes relative to described screen centre position.
Further, as shown in Figure 1, image processing apparatus 102 generates according to the first angle and the second angle and controls the first signal that holographic scene generation unit 103 right and left eyes looks corresponding holographic scene, wherein, described first signal comprises the information of the first angle and the second angle, image processing apparatus 102 also generates the secondary signal controlling electrical grating 105 operating angle according to the first angle, wherein, secondary signal comprises the information of the first angle.
Holographic scene generation unit 103 for receiving described first signal, and generates corresponding left and right according to described first signal and looks holographic scene, and described left and right is sent to described display screen 104 depending on the holographic scene in road shows.
Particularly, why holographic scene generation unit 103 will adjust depending on the holographic scene in road left and right, that as long as within the display effective range of holographic display, beholder can enjoy the good holographic display frame of effect in order to when the positional information of beholder occurs.Therefore after holographic scene generation unit 103 receives the first signal, the first angle and the second angle is obtained from the first signal, namely the particular location of the shutter glasses of beholder can be known by above-mentioned information, then controlling scene rendering camera first moves to left to the primary importance corresponding with described second angle with described first angle, wherein, the distance of movement is the first distance, and now, scene rendering camera gets the holographic scene in Zuo Shi road.Then holographic scene generation unit 103 controls move right the first distance of twice of scene rendering camera again and arrives the second place and obtain the holographic scene in You Shi road, wherein, the first distance is with prefabricated parameter corresponding to the depth of view information of the image of display screen 104 display.Left and right, after getting the holographic scene of the holographic scene in Zuo Shi road and You Shi road, is sent to described display screen 104 depending on the holographic scene in road and shows by holographic scene generation unit 103.
Electrical grating 104 for receiving described secondary signal, and adjusts operating angle according to described secondary signal.
As shown in Figure 3, Fig. 3 is the structural representation of electrical grating one execution mode of the present invention.
The described electrical grating of present embodiment comprises: the first glass plate 301, second glass plate 302, liquid crystal layer 303, the first surface of described first glass plate 301 is provided with the first Polarizer 304, the second surface of described first glass plate 301 first Polarizer 304 is dorsad provided with the first electrode layer 305, the first surface of the second glass plate 302 is provided with the second Polarizer 306, first Polarizer 304 is vertical with the polarization direction of the second Polarizer 306, and the second surface of the second glass plate 302 second Polarizer 306 is dorsad provided with the second electrode lay 307, described the second electrode lay 307 comprises multiple spaced electrode 3071, described liquid crystal layer 303 is located between described first electrode layer 305 and described the second electrode lay 304, described first electrode layer 305 and described the second electrode lay 307 are for generation of electric field, deflect to make liquid crystal molecule.
Particularly, composition graphs 1 and Fig. 3, present embodiment electrical grating controls described liquid crystal molecule according to described first angle and deflects, and makes the light and shade fringe position of electrical grating make adaptive change according to the positional information of described shutter glasses.
Under the cooperation of holographic scene generation unit 103 and electrical grating 105, beholder enjoys the holography corresponding with its positional information and shows image.
It should be noted that, in present embodiment, by the camera 101 that filming frequency is enough fast realize to beholder the acquisition of the image of shutter glasses of wearing, but be not limited to use camera obtain, in other embodiments, also can be obtained by two cameras, two cameras are placed in the right and left of display screen respectively, as shown in Figure 4, but be not limited to above-mentioned position, do not limit at this.
Be different from prior art, the holographic display based on glasses tracking of present embodiment is coated with the positional information of the shutter glasses of reflectorized material or fluorescent material by the picture frame that camera acquisition beholder wears, determine that the operating angle of holographic scene and electrical grating is looked in left and right, user what position in office is made to enjoy stereoscopically displaying images, and, picture frame is coated with reflectorized material or fluorescent material, make holographic display in dark or the positional information that still can obtain beholder in night, and because shutter glasses is larger relative to the eyes area of beholder, compound with regular structure, more be easy to identify, make the position of holographic display acquisition beholder more accurate.
Consult Fig. 5, Fig. 5 is the structural representation that the present invention is based on holographic display system one execution mode that glasses are followed the trail of.The holographic display system of present embodiment comprises holographic display 501 and shutter glasses 502.
Wherein, shutter glasses 502 comprises left eyeglass 5021, right eyeglass 5022 and picture frame 5023, described picture frame 5023 is coated with reflectorized material or fluorescent material, shutter glasses 502 is made also can by holographic display Obtaining Accurate, and then to make the time of beholder to the appreciation of holography display image more flexible under the condition of dark or under dark condition.
Described holographic display 501 is the holographic display of the arbitrary execution mode of Fig. 1 ~ Fig. 4, specifically refers to Fig. 1 ~ Fig. 4 and related text description, does not limit at this.
Be different from prior art, the holography display assembling system based on glasses tracking of present embodiment comprises shutter glasses and the holographic display that picture frame is coated with reflectorized material or fluorescent material, holographic display obtains the positional information of shutter glasses by camera, determine that the operating angle of holographic scene and electrical grating is looked in left and right, make user what position in office can enjoy holographic display image, due to, picture frame is coated with reflectorized material or fluorescent material, make holographic display in dark or the positional information that still can obtain beholder in night, and because shutter glasses is larger relative to the eyes area of beholder, compound with regular structure, more be easy to identify, make the position of holographic display acquisition beholder more accurate.
Consult Fig. 6, Fig. 6 is the structural representation that the present invention is based on holographic display packing one execution mode that glasses are followed the trail of.Comprise the steps:
601: holographic display obtains the positional information of the shutter glasses that beholder wears, and wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material.
Because beholder is when watching holographic display image, generally all need to wear shutter glasses, and shutter glasses is larger relative to the eyes area of beholder, compound with regular structure, more be easy to identify, therefore, holographic display effectively can improve setting accuracy by the positional information of chasing shutter glasses.
Wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material, therefore, when being in dark or night even if current, holographic display also can Obtaining Accurate to the positional information of shutter glasses.Particularly, holographic display first obtains the image information of the shutter glasses that beholder wears.In the present embodiment, holographic display obtains the image information of the shutter glasses that beholder wears by camera.
Particularly, if the filming frequency of camera is enough fast, holographic display only need a camera just can realize to beholder the acquisition of the image of shutter glasses of wearing, but be not limited to use camera obtain, in other embodiments, can be obtained by two cameras, and not putting of two cameras does not limit yet.
602: generate control holographic scene generation unit generation right and left eyes according to the positional information of described shutter glasses and look the first signal of corresponding holographic scene and control the secondary signal of electrical grating operating angle, generate corresponding left and right according to described first signal and look holographic scene, and show on a display screen;
Particularly, the primary importance information of the central point of the image determination shutter glasses image of the shutter glasses that the beholder that holographic display obtains wears.Wherein, first by the left picture frame of image determination shutter glasses and the location coordinate information of right picture frame of above-mentioned shutter glasses, then the primary importance information of central point according to the position coordinates determination shutter glasses of left picture frame and right picture frame.
Wherein, left picture frame is the spatial coordinated information of the display screen relative to holographic display with the primary importance information by the location coordinate information of picture frame and the central point of shutter glasses, in one preferred embodiment, using the center of above-mentioned display screen as the origin of coordinates, in other embodiments, also can other places be the origin of coordinates, as any position of display screen, not limit at this.
Wherein, holographic display determines that the method for the first angle does not limit.In an execution mode wherein, holographic display detecting eyes central point is relative to the first distance of screen centre position, preferably, holographic display detects the first distance by infrared distance measurement instrument, in other embodiments, also can detect by other means, not limit at this.
The second distance that holographic display ground obtains between eyes according to the first coordinate information and the second coordinate information, and according to the first angle of the first distance and the line of central point of second distance determination eyes central point and display screen and the angle of the bearing of trend of display screen.
Particularly, holographic display utilizes formula
determine the angle of the center between described eyes relative to described screen.
Wherein, θ is the first angle of the angle of the line of the central point of eyes central point and display screen and the bearing of trend of display screen, and L is the second distance between described eyes, and Z is first distance of the center between described eyes relative to described screen centre position.
Holographic display is after the primary importance information of central point determining shutter glasses, the second place information of the central point of further acquisition display screen, and according to above-mentioned primary importance information and the central point of second place information determination shutter glasses and the line of central point of display screen and the first angle of display screen and with described line and the second angle of himself projecting at display screen.
Further, holographic display generates according to the first angle and the second angle and controls the first signal that holographic scene generation unit right and left eyes looks corresponding holographic scene, wherein, described first signal comprises the information of the first angle and the second angle, holographic display also generates the secondary signal controlling electrical grating operating angle according to the first angle, wherein, secondary signal comprises the information of the first angle.
Particularly, why holographic scene generation unit will adjust depending on the holographic scene in road left and right, that as long as within the display effective range of holographic display, beholder can enjoy the good holographic display frame of effect in order to when the positional information of beholder occurs.Therefore after holographic scene generation unit receives the first signal, the first angle and the second angle is obtained from the first signal, namely the particular location of the shutter glasses of beholder can be known by above-mentioned information, then controlling scene rendering camera first moves to left to the primary importance corresponding with described second angle with described first angle, wherein, the distance of movement is the first distance, and now, scene rendering camera gets the holographic scene in Zuo Shi road.Then holographic scene generation unit controls move right the first distance of twice of scene rendering camera again and arrives the second place and obtain the holographic scene in You Shi road, and wherein, the first distance is with prefabricated parameter corresponding to the depth of view information of the image of display screen display.Left and right, after getting the holographic scene of the holographic scene in Zuo Shi road and You Shi road, is sent to described display screen depending on the holographic scene in road and shows by holographic scene generation unit.
603: adjust according to the operating angle of described secondary signal to electrical grating, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, the holographic scene in You Shi road enters the right eye of described beholder through described electrical grating.
Holographic display controls the liquid crystal molecule that above-mentioned electrical grating controls described electrical grating according to described first angle and deflects, and makes the light and shade fringe position of electrical grating make adaptive change according to the positional information of described shutter glasses.
Particularly, the described electrical grating that in present embodiment, holographic display controls comprises: the first glass plate, second glass plate, liquid crystal layer, the first surface of described first glass plate is provided with the first Polarizer, the second surface of described first glass plate the first Polarizer is dorsad provided with the first electrode layer, the first surface of the second glass plate is provided with the second Polarizer, first Polarizer is vertical with the polarization direction of the second Polarizer, and the second surface of the second glass plate the second Polarizer is dorsad provided with the second electrode lay, described the second electrode lay comprises multiple spaced electrode, described liquid crystal layer is located between described first electrode layer and described the second electrode lay, described first electrode layer and described the second electrode lay are for generation of electric field, deflect to make liquid crystal molecule, the light and shade fringe position of electrical grating is made to make adaptive change according to the positional information of described shutter glasses.
Holographic display controls holographic scene generation unit and electrical grating is cooperatively interacting, and makes any position of beholder in the indication range of holographic display can enjoy the holography corresponding with its positional information and shows image.
Be different from prior art, the holographic display of present embodiment obtains the positional information that picture frame that beholder wears is coated with the shutter glasses of reflectorized material or fluorescent material, determine that the operating angle of holographic scene and electrical grating is looked in left and right, user what position in office is made to enjoy stereoscopically displaying images, and, picture frame is coated with reflectorized material or fluorescent material, make holographic display in dark or the positional information that still can obtain beholder in night, and because shutter glasses is larger relative to the eyes area of beholder, compound with regular structure, more be easy to identify, make the position of holographic display acquisition beholder more accurate.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the holographic display followed the trail of based on glasses, it is characterized in that, comprise: display screen, camera and graphics processing unit, holographic scene generation unit and electrical grating, described graphics processing unit is electrically connected with described camera and described holographic scene generation unit and electrical grating respectively
The positional information of shutter glasses of described camera for obtaining beholder and wearing, wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material;
Described graphics processing unit is used for generating the described holographic scene generation unit generation right and left eyes of control according to the positional information of described shutter glasses to be looked the first signal of corresponding holographic scene and controls the secondary signal of electrical grating operating angle;
Described holographic scene generation unit for receiving described first signal, and generates corresponding left and right according to described first signal and looks holographic scene, and described left and right is sent to described display screen depending on the holographic scene in road shows;
Described electrical grating for receiving described secondary signal, and adjusts operating angle according to described secondary signal.
2. holographic display according to claim 1, is characterized in that, the image of the described shutter glasses that described graphics processing unit obtains according to described camera determines the primary importance information of the central point of described shutter glasses image.
3. holographic display according to claim 2, is characterized in that, described graphics processing unit specifically for:
Obtain the second place information of the central point of described display screen and described primary importance information, determine the line of the central point of described shutter glasses and the central point of described display screen and the first angle of described display screen and described line and its second angle projected on described display screen according to described primary importance information and described second place information;
Described holographic scene generation unit is used for generating corresponding left and right according to described first angle and the second angle and looks holographic scene.
4. holographic display according to claim 3, is characterized in that, described electrical grating is used for adjusting operating angle according to described first angle.
5. holographic display according to claim 4, it is characterized in that, described electrical grating comprises: the first glass plate, second glass plate, liquid crystal layer, the first surface of described first glass plate is provided with the first Polarizer, the second surface of described first glass plate the first Polarizer is dorsad provided with the first electrode layer, the first surface of the second glass plate is provided with the second Polarizer, first Polarizer is vertical with the polarization direction of the second Polarizer, and the second surface of the second glass plate the second Polarizer is dorsad provided with the second electrode lay, described the second electrode lay comprises multiple spaced electrode, described liquid crystal layer is located between described first electrode layer and described the second electrode lay, described first electrode layer and described the second electrode lay are for generation of electric field, deflect according to described first angle to make liquid crystal molecule, the light and shade fringe position of grating is made to make adaptive change according to the positional information of described shutter glasses.
6., based on the holographic display system that glasses are followed the trail of, it is characterized in that, comprising: shutter glasses and holographic display, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material; Wherein, the opening and closing that described left and right eyeglass replaces, receive the display image light of described holographic display;
The holographic display of described holographic display according to any one of claim 1-5.
7., based on the holographic display packing that glasses are followed the trail of, it is characterized in that,
Holographic display obtains the positional information of the shutter glasses that beholder wears, and wherein, described shutter glasses comprises left and right eyeglass and picture frame, and described picture frame is coated with reflectorized material or fluorescent material;
Generate control holographic scene generation unit generation right and left eyes according to the positional information of described shutter glasses look the first signal of corresponding holographic scene and control the secondary signal of electrical grating operating angle, generate corresponding left and right according to described first signal and look holographic scene, and show on a display screen;
Adjust according to the operating angle of described secondary signal to electrical grating, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, the holographic scene in You Shi road enters the right eye of described beholder through described electrical grating.
8. method according to claim 7, it is characterized in that, described holographic display obtains the positional information of the shutter glasses that beholder wears, wherein, described shutter glasses comprises left and right eyeglass and picture frame, and the step that described picture frame is coated with reflectorized material or fluorescent material comprises:
The image of the described shutter glasses obtained according to described holographic display determines the primary importance information of the central point of described shutter glasses image.
9. method according to claim 8, it is characterized in that, the described positional information according to described shutter glasses generates control holographic scene generation unit generation right and left eyes and looks the first signal of corresponding holographic scene and control the secondary signal of electrical grating operating angle, generates corresponding left and right according to described first signal and look holographic scene, and the step of carrying out on a display screen showing comprises:
Obtain the second place information of the central point of described display screen and described primary importance information, determine the line of the central point of described shutter glasses and the central point of described display screen and the first angle of described display screen and described line and its second angle projected on described display screen according to described primary importance information and described second place information;
Generate corresponding left and right according to described first angle and the second angle and look holographic scene.
10. method according to claim 9, it is characterized in that, describedly to adjust according to the operating angle of described secondary signal to electrical grating, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, the holographic scene in You Shi road enters the right eye of described beholder step through described electrical grating comprises:
Adjust operating angle according to described first angle, the holographic scene in the Zuo Shi road shown to make described display screen enters the left eye of described beholder through described electrical grating, and the holographic scene in You Shi road enters the right eye of described beholder through described electrical grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850583.7A CN104601980A (en) | 2014-12-30 | 2014-12-30 | Glass tracking-based holographic display device, system and method |
Applications Claiming Priority (1)
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