CN104410853A - Three-dimensional holographic display system based on transmission - Google Patents
Three-dimensional holographic display system based on transmission Download PDFInfo
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- CN104410853A CN104410853A CN201410560272.7A CN201410560272A CN104410853A CN 104410853 A CN104410853 A CN 104410853A CN 201410560272 A CN201410560272 A CN 201410560272A CN 104410853 A CN104410853 A CN 104410853A
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Abstract
The invention discloses a three-dimensional holographic display system based on transmission, which comprises a transmission screen and a projection screen, wherein the transmission screen is provided with an emergent surface with a predetermined surface function; the projection screen faces the transmission screen; after a left eye image and a right eye image, which are sent by a projector, are refracted by the emergent surface with the surface function of the transmission screen, the left eye image and the right eye image are respectively reflected to a left eye and a right eye of a looker, so that the three-dimensional holographic display is implemented. Through the manner, ray can be refracted to different directions through the emergent surface with the surface function of the transmission screen, the refractive direction is decided by an angle of the ray entering the transmission screen and the surface function of the emergent surface, the refracted ray is reflected through the projection screen and can be reflected to the looker at any position, so that the looker can see a unique customized three-dimensional image.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of three-dimensional panoramic show system based on transmission.
Background technology
Dimension display technologies is day by day universal and use, and in daily life, people thirst for the viewing experience obtaining 3 D stereo.The development of computer graphics aspect makes three-dimensional display more feasible, even if but computer graphics, 3D such as to play up at the technology obtains high quality graphic, look still not true to nature.Therefore people start the more deep research stereoscopic vision degree of depth, the motion time difference for the facilitation of fidelity, and then occurred holography.Holographic display can be understood as the image of whole pictures at a displaying whole visual angle of object.Hologram image technology comprises and utilizes special technological means record and the image reproducing whole pictures at a whole visual angle of object, thus human eye is produced feel the same visual effect completely with actual environment.
In the prior art, three-dimensional (3D) Display Technique can provide hologram image, and user will wear the helmet, special spectacles etc. usually, plane picture is converted to the image of virtual three-dimensional.But this application mode is carried out alone and is have obstruction property: user wears the helmet, special spectacles or 3D rendering can be shown to separately the equipment of each user by other.
Although existing method is normally successful, they are not widely accepted, this is because beholder does not like wearing thing usually on eyes.In addition, these methods cannot to realize to the passerby of one or more accidental process, a group partner or theater 3D rendering will being projected.If meet this needs watched simultaneously, each beholder making it possible to also can to move freely completely for being in identical viewing environment presents the automatic stereo 3D rendering of unique custom, and this image be different from completely those just the image watched by any other beholder, will be so particularly advantageous.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of three-dimensional panoramic show system based on transmission, can make that multiple beholder is clog-free to be moved freely and can see three-dimensional image for each beholder's unique custom.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of three-dimensional panoramic show system based on transmission, comprising:
Projecting apparatus; Transmission screen, it has the exit surface of predetermined surface function; Projection screen, in the face of described transmission screen; Wherein, the left-eye image that projecting apparatus sends and eye image by transmission screen there is the refraction of the exit surface of surface function after, reflexed to left eye and the right eye of beholder respectively by projection screen, to realize three-dimensional panoramic show.
Wherein, three-dimensional panoramic show system comprises further: follow-up mechanism, for following the trail of the position of beholder to determine left eye position and the right eye position of beholder; Feedback device, receives the positional information of the beholder of follow-up mechanism feedback, and controls the image emissions of projecting apparatus or the deflection angle of transmission screen according to information.
Wherein, follow-up mechanism is 3D imager.
Wherein, transmission screen to be integrated in projecting apparatus and before being positioned at the camera lens of projecting apparatus.
Wherein, projection screen is plane mirror.
Wherein, the exit surface of transmission screen is made up of multiple continuous or discrete arc.
Wherein, the described predetermined surface function of exit surface is dextrorotation ripple.
Wherein, three-dimensional panoramic show system comprises further: image generator, connects projecting apparatus to provide image to projecting apparatus.
Wherein, image generator comprises further: Iamge Segmentation device, for described Iamge Segmentation is become described left-eye image and described eye image.
The invention has the beneficial effects as follows: the situation being different from prior art, in the present invention, transmission screen has the exit surface of reservation form surface function, the left-eye image that projecting apparatus sends and eye image are reflected by transmission screen, and the surface function of angle and transmission screen exit surface that light enters transmission screen determines the direction of the rear light of refraction, light after refraction is reflected by projection screen again, thus left-eye image and eye image are reflexed to left eye and the right eye of beholder, when reflecting many group left-eye image and eye image, the energy multiple beholders realized at an arbitrary position can both watch the three-dimensional image of unique custom.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of three-dimensional panoramic show system first execution mode based on transmission of the present invention;
Fig. 2 a is transmission screen Region dividing schematic diagram in the first execution mode;
Fig. 2 b be in the first execution mode image by transmission screen regional to the light path schematic diagram of human eye;
Fig. 3 is the structural representation of a kind of three-dimensional panoramic show system second execution mode based on transmission of the present invention;
Fig. 4 is the light path schematic diagram that in the second execution mode, image reflexes to beholder's eyes through superrefraction;
Fig. 5 is the schematic diagram of beholder's left eye position and right eye position locate mode;
Fig. 6 is that beholder sees the schematic diagram of different visual angles image in different angles;
Fig. 7 is the workflow schematic diagram of a kind of three-dimensional panoramic show system second execution mode based on transmission of the present invention.
Embodiment
Consult Fig. 1, Fig. 1 is the structural representation of a kind of three-dimensional panoramic show system first execution mode based on transmission of the present invention, present embodiments provide for a kind of display system 100, comprises projecting apparatus 101, transmission screen 102 and projection screen 103.
In present embodiment, projecting apparatus 101 is for sending image, and image is sent to projection screen 103 by transmission screen 102, is then projected to the eyes of beholder.Concrete, the projecting apparatus 101 in present embodiment also comprises graphics processing unit 1011 and transmitter unit 1012.Wherein, graphics processing unit 1011 can partitioned image and control the transmission of image, and in present embodiment, image is divided into left-eye image and eye image by graphics processing unit 1011, and left-eye image and eye image are modulated, enable beholder see corresponding hologram image.Transmitter unit 1012 receives the image after the modulation transmitted from graphics processing unit 1011 and control signal.Transmitter unit 1012 launches the image after modulation according to control signal, and above-mentioned control signal is mainly used in controlling image that transmitter unit 1012 launches, direction and time, namely sends specific image in particular moment toward specific direction.
Further, in present embodiment, image can also be divided into the multiple or many groups of images with parallax by graphics processing unit 1011, is in the beholder of diverse location with correspondence.Transmitter unit 1012 then can send multiple series of images with different angles accordingly simultaneously, and is reflexed to by projection screen 102 in the eye of different beholder, and does not interfere with each other between each group image.Graphics processing unit 1011 can carry out division modulation with certain refreshing frequency to image, and transmitter unit 1012 launches image in the eye of beholder with this refreshing frequency.The setting of this refreshing frequency considers the retentivity time of eye, thus ensures that beholder can see continuous print image.
In other execution modes, the mode that graphics processing unit 1011 processes image can not be with certain refreshing frequency active process, but adopt the mode being triggered passive process by signal, when the quantity of beholder changes, have a triggering signal and be sent to graphics processing unit 1011, now graphics processing unit 1011 carries out division modulation according to the triggering signal received to image.In this embodiment, an element can be set to monitor the change of beholder, produce triggering signal when monitoring change, also directly can input trigger message by beholder.
In other execution modes, projecting apparatus 101 can use as just transmitter unit 1012, and graphics processing unit 1011 is the element independent of projecting apparatus 101 setting in display system 100, can process image and control projecting apparatus 101.
Transmission screen 102, has the exit surface 1022 of predetermined surface function.
In present embodiment, transmission screen 102 is arranged on the transmitting terminal of projecting apparatus 101 light, the light sent can be made through transmission screen 102, be then transmitted through projection screen 103.Based on the consideration of this function, transmission screen 102 can as an independent element, and place or be arranged on the transmitting terminal of projecting apparatus 101 during use, in general transmission screen 102 is placed near the transmitting terminal of projecting apparatus 101 light; Also directly as a part for projecting apparatus 101, the transmitting terminal of projecting apparatus 101 can be arranged on.Further, transmission screen 102 can rotate relative to projecting apparatus 101, and produces certain deflection angle.When transmission screen 102 is as individual component, in transmission screen 102, also comprise controller, for controlling the deflection angle of transmission screen 102; When transmission screen 102 is as projecting apparatus 101 part, projecting apparatus 101 controls the deflection angle of transmission screen 102.In present embodiment, using the part of transmission screen 102 as projecting apparatus 101.
In present embodiment, transmission screen 102 arranges its shape according to projecting apparatus 101, and the exit end of general projecting apparatus is circular, and therefore the shape of transmission screen 102 is also set to circle.Certainly, in other embodiments, also transmission screen 102 can be set to square or other shapes, to its shape and material, this is not restricted.
In present embodiment, transmission screen 102 incidence surface 1021 is plane, exit surface 1022 has predetermined surface function.The left-eye image of launching when projecting apparatus 101 and eye image are through transmission screen 102, then when exit surface 1022 is with certain angle refraction, because incidence surface 1021 is plane, exit surface 1022 has predetermined surface function, therefore the difference in projecting apparatus 101 emission of light direction determines the difference of incidence point, then the difference of eye point is determined, and the refraction angle of light also can be different, then left eye and the right eye of beholder is reflexed to by projection screen 103, according to above principle, can control the direction of propagation of light.When projecting apparatus 101, transmission screen 102 and projection screen 103 position relationship are fixed, can by the beholder of corresponding for the eye point of zones of different on transmission screen 102 different viewing location.Same, incidence surface 1021 also can be set as having specific surface function, only need guarantee by the control of surface function realization to light transmition direction.
Projection screen 103 is in the face of transmission screen 102, the left-eye image that projecting apparatus 101 sends and eye image are by after the refraction of the exit surface 1022 with surface function of transmission screen 102, then left eye and the right eye of beholder is reflexed to by projection screen 103, to realize three-dimensional panoramic show.
Projection screen 103 in the face of transmission screen 102 is arranged also be in order at light after transmission screen 102 reflects, can be sent on projection screen 103, then reflect.
In present embodiment, have the position relationship that fixing between projection screen 103 and transmission screen 102, this position relationship determines the scope of viewing area.The image launched from transmission screen 102 reflects through projection screen 103, and then is projected to and is in beholder's eye of viewing area.In the position of transmission screen 102 eye point and viewing area beholder position between have corresponding relation C, this corresponding relation C specifically describes: the beholder of a-quadrant, viewing area receives the image of transmission screen a region transmission, and the beholder of a-quadrant, viewing area cannot receive the image of transmission screen b region transmission, specifically refer to Fig. 2 a and Fig. 2 b, Fig. 2 a is transmission screen Region dividing schematic diagram in the first execution mode, Fig. 2 b be in the first execution mode image by transmission screen 102 regional to the light path schematic diagram of human eye.The division in region is not limited only to the form in Fig. 2 a, can freely divide according to actual needs.This corresponding relation C is set in advance in display system 100, and object is to realize good transmission projection effect.In the present embodiment, transmission screen 102 is placed near the transmitting terminal of projecting apparatus 101, and therefore the direction of image launched by the eye point determining positions projecting apparatus 101 of projection screen 102.
In other execution modes, the position between transmission screen 102 and projection screen 103 can not be fixed, and both all can be freely movable, and now, both scope of application is more wide, and adjustable is stronger.And for diverse location beholder corresponding to transmission screen 102 eye point 1021 also by Random assignment, or distribute with certain rule, the deflection angle then by changing transmission screen 102 changes the direction of beam projecting.
Projection screen 103 has reflex, and in present embodiment, projection screen 103 is speculum, other also can be selected to have the material of reflecting effect, as the silver etc. of ganoid aluminum slice, polishing.
In some embodiments, further, the deflection that projection screen 103 does certain angle can also be controlled.
Be different from prior art, in present embodiment, projecting apparatus sends left-eye image and eye image, image reflects through transmission screen, and there is predetermined surface function due to the exit surface of transmission screen, therefore the light transmition direction of different eye point is different, left eye and right eye that left-eye image and eye image are transmitted to beholder respectively can be controlled thus, further, projecting apparatus can also send multiple series of images and makes multiple beholders of diverse location can see the three-dimensional image of unique custom.
Refer to Fig. 3, Fig. 3 is the structural representation of a kind of three-dimensional panoramic show system second execution mode based on transmission of the present invention, present embodiments provide for a kind of display system 300, comprise projecting apparatus 301, transmission screen 302, projection screen 303, follow-up mechanism 304, feedback device 305 and image generator 306.
Projecting apparatus 301, for being sent to transmission screen 302 by image.
Transmission screen 302, has the exit surface 3022 of predetermined surface function.
Projection screen 303, in the face of transmission screen 302, the left-eye image that projecting apparatus 301 sends and eye image, by after the refraction of the exit surface 3022 with surface function of transmission screen 302, reflex to left eye and the right eye of beholder, then to realize three-dimensional panoramic show by projection screen 103.
The principle of projecting apparatus 301, transmission screen 302 and projection screen 303 and arrange and the first execution mode similar, therefore not to repeat here.
In the present embodiment, it is to be understood that the predetermined surface function of transmission screen 302 exit surface 3022 is sinusoidal wave.Refer to Fig. 4, Fig. 4 is the light path schematic diagram that in the second execution mode, image reflexes to beholder's eyes through superrefraction.Need explanation, in Fig. 4, the position of projecting apparatus 301 and transmission screen 302 exit surface 3022 and magnitude relationship are as just signal, do not represent position and the magnitude relationship of its reality, and more convenient in order to describe, do not consider the refraction that light occurs when entering transmission screen 302 incidence surface 3021 in the diagram.
The formula of surface function sine wave is:
y(x)＝Y
0sin(k
0x)
Wherein, Y
0represent wave amplitude, k
0=2pie/r
p, r
prepresent wavelength.
Provide below in present embodiment, after determining beholder position, system obtains the mathematical principle of eye point position.First the exit surface 3022 of projecting apparatus 301, transmission screen 302 and the position of projection screen 303 are fixed, and the position of known beholder, i.e. r, X
2, Y
0, k
0, Y
1, Y
2, Y
3all known numerical value.
Suppose that eye point coordinate is for (x, y), namely system-computed target obtains the value of x.Now do not consider the negative axle of coordinate, suppose that all values are positive number.
The direction that image launched by projecting apparatus 301 is represented by angle c, wherein:
Tanc=(Y
1+ y)/x, then c=arctan ((Y
1+ y)/x)
Owing to determining the formula of surface function, therefore can obtain eye point place tangent slope to formula differentiate, and in Fig. 4, the angle of tangent line and x-axis is d, can obtain following formula:
y(x)/dx＝Y
0k
0cos(k
0x)
Tand=Y
0k
0cos (k
0x), then d=arctan (Y
0k
0cos (k
0x))
The number obtained during above differentiate may be negative, in subsequent calculations, be all converted into positive number.
By the angle c obtained above and d, can calculate light by the incident angle a of exit surface 3022, as follows:
a＝c-(90-d)＝arctan((Y
1+y)/x)+arctan(Y
0k
0cos(k
0x))–90°
Light, by reflecting with certain refractive index r during transmission screen 302, is emitted to projection screen 303 with angle of emergence b then, and projection screen 303 reflects, and incidence angle angle of reflection is now e, is then sent to human eye.
The principle similar by mathematics intermediate cam shape, can obtain the computing formula of e:
Tane=(X
2-x)/(Y
2+ Y
3+ Y
3-y), then e=arctan ((X
2-x)/(Y
2+ 2Y
3-y))
Then the computing formula of angle of emergence b can be obtained:
b＝d-e＝arctan(Y
0k
0cos(k
0x))-arctan((X
2-x)/(Y
2+2Y
3-y))
Below the computing formula of incidence angle a and angle of emergence b is obtained respectively, then the computing formula of combined refractive index r and the formula of surface function, the value of x can be calculated, namely draw the position of eye point.
r＝sina/sinb
y＝Y
0sin(k
0x)
a＝arctan((Y
1+y)/x)+arctan(Y
0k
0cos(k
0x))–90°
b＝d-e＝arctan(Y
0k
0cos(k
0x))-arctan((X
2-x)/(Y
2+2Y
3-y))
Above-mentioned calculating can use Matlab or computer language (C, Java etc.) to realize
In other embodiments, the exit surface 3022 of transmission screen 302 also can be made up of multiple continuous or discrete arc, its surface function also can select sawtooth waveforms function, triangular wave function, anharmonic wave function etc., these functions mathematically can be defined, simultaneously also can be clear and definite for transmission screen 302 to control the direction of light.Sine wave in the similar present embodiment of principle that in above situation, each function controls radiation direction, is therefore no longer described further.
Follow-up mechanism 304, for following the trail of the position of beholder to determine left eye position and the right eye position of beholder.
Follow-up mechanism 304 is 3D imager, and 3D imager can comprise scanner, is determined the characteristic of beholder by scanning; Can biometrics readers be comprised, be identified the characteristic of beholder by human body part feature; Also other equipment can locating beholder's characteristic can be comprised.The characteristic of beholder then comprises the height of beholder, the size of head, rotation and inclination, the position etc. of shoulder and arm.
Meanwhile, 3D imager can also emission of light to beholder, and accept the light that beholder reflects, determine the position of the relative 3D imager of beholder with this.And 3D imager and projecting apparatus 301 have fixing position relationship, it also has a position coordinates in viewing area, then can determine the position coordinates of beholder in viewing area.In the present embodiment, 3D imager is as follow-up mechanism 303, its display screen can present a virtual space, for simulating viewing area and beholder, can in virtual space, be seen the characteristic of beholder by functions such as the scannings of 3D imager intuitively and be in the position of viewing area.Further, 3D imager also comprises input unit, and when the scene of virtual space is not too accurate, beholder can adjust position and the characteristic of beholder in virtual space at any time by input unit.
In other embodiments, display screen also can not be needed to present position and the characteristic of beholder, only rely on data to record position and the characteristic of beholder.Follow-up mechanism 304 can also record multi-group data to represent position and the characteristic of multiple beholder.
Follow-up mechanism 304 locates left eye position and right eye position according to beholder's characteristic obtained above and position.Specifically refer to Fig. 5, Fig. 5 is the schematic diagram of beholder's left eye position and right eye position locate mode, determines the coordinate of each characteristic of beholder in Fig. 5 in XYZ direction, and the relation between coordinate can reflect the coordinate position of eyes and the deflection angle of head.The positional information of beholder and beholder's left eye right eye positional information are transferred to feedback device 305 by follow-up mechanism 304.
Further, in present embodiment, follow-up mechanism 304 can also with certain frequency timing go follow the trail of the position of beholder, by the positional information real-time update of beholder.Ensure that beholder is when movement or beholder's number change, also can correspondingly receive the image of respective change.In other execution modes, also can comprise a detector in follow-up mechanism 304, when detecting beholder's quantity or position changes, just the change of meeting trigger trace device 304 couples of beholders is followed the trail of.
In other embodiments, follow-up mechanism 304 can be configured to a part for projecting apparatus 301, projecting apparatus 301 directly launches controlled light to beholder and projection screen 303, then accept the light of beholder and projection screen 303 reflection respectively, determine the relative position of beholder and projection screen 302 with this.Accept the optional optical sensor of instrument of light, this optical sensor can receive angle and the height of light.
Feedback device 305, receives the positional information of the beholder that follow-up mechanism 304 feeds back, and controls the image emissions of projecting apparatus 301 or the deflection angle of transmission screen 302 according to information.
After feedback device 305 receives positional information, location information processes, and produces the first control signal, controls image and the transmit direction of projecting apparatus 301 transmitting, then controls the position of light by transmission screen 302 eye point; Or produce the deflection angle that the second control signal controls transmission screen 302 simultaneously.
Feedback device 305 processes positional information and produces the idiographic flow of control signal as follows: according to the position relationship C process positional information of transmission screen 302 eye point preset in system and beholder, first corresponding according to position information confirming beholder transmission screen 302 eye point, and projecting apparatus 301, the position relationship of transmission screen 302 and projection screen 303 is fixed, therefore determine that namely transmission screen 302 eye point determines the direction that image launched by projecting apparatus 301, this is the content of the first control signal, this control signal will be sent to projecting apparatus 301, to control image and the transmit direction of projecting apparatus 301 transmitting, and then finely tune according to the deflection angle of positional information to transmission screen 302, with the left eye and the right eye that make light can reflex to beholder exactly, this is the content of the second control signal, and this control signal sends transmission screen 302 to adjust its deflection angle.According to actual conditions, the second control signal can produce and also can not produce.
For the process of the left eye acceptance pattern picture of a beholder, first the position of left eye is confirmed by follow-up mechanism 304, and left eye positional information is fed back to feedback device 305, then feedback device 305 determines control information according to left eye position, comprise: the left-eye image that projecting apparatus 301 will send, the direction that on transmission screen 302, corresponding eye point and left-eye image will be sent out, and the deflection angle of transmission screen 302; Control information is sent to respectively projecting apparatus 301 and transmission screen 302, makes beholder's left eye receive left-eye image.
When there is multiple beholder, then identical with above process, follow-up mechanism 304 is determined to organize positional information more simultaneously.Then be sent to feedback device 305 by organizing positional information more, feedback device 305 produces according to many group positional informations and organizes control information more accordingly, and control information is sent to projecting apparatus 301 and transmission screen 302, ensure that multiple beholder can see the image of respective unique custom simultaneously.
For single viewer, when it moves to some extent, this moves and comprises beholder's change in location, or the change of beholder's viewing angle; Because follow-up mechanism in present embodiment 304 can realize with certain frequency timing tracking or according to change real-time tracing, therefore follow-up mechanism 304 can send the positional information of renewal timely to feedback device 305, and feedback device 305 also can control projecting apparatus 301 timely and transmission screen 302 sends corresponding image to beholder, enable beholder see corresponding image in another position or with another visual angle timely, realize the visual experience of hologram image.Specifically refer to Fig. 6, Fig. 6 is that beholder sees the schematic diagram of different visual angles image in different angles, illustrates the viewing of beholder front in Fig. 6 respectively, from left side viewing and views different when watching from the right.
In some embodiments, follow-up mechanism 303 and feedback device 304 can be integrated in projecting apparatus 301 simultaneously.
Image generator 306, connects projecting apparatus 301 to provide image to projecting apparatus 301; Wherein, image generator 306 also comprises Iamge Segmentation device 3061, for Iamge Segmentation is become left-eye image and eye image.
In present embodiment, first image generator 306 provides image with the refreshing frequency of 30 frames, then each two field picture is all divided into left-eye image and eye image by Iamge Segmentation device 3061 wherein, projecting apparatus 301 will receive with the refreshing frequency of 60 frames and send left-eye image and eye image, the detection of corresponding follow-up mechanism 304 and the control of feedback device 305 also should adapt to this refreshing frequency, to ensure that beholder can see continuous print image.In like manner known, refreshing frequency also can be other numerals, considers the time of the persistence of vision.
In present embodiment, the specific works process of display system 300, refers to Fig. 7, and Fig. 7 is the workflow schematic diagram of a kind of three-dimensional panoramic show system second execution mode based on transmission of the present invention, and its key step comprises:
S701: the position confirming beholder, obtains the positional information of each beholder;
This process is realized by follow-up mechanism 304.
S702: need the image sent according to the position information confirming projecting apparatus of each beholder, the transmission screen eye point corresponding to each beholder and the deflection angle of transmission screen;
This process is realized by feedback device 305, first processes the positional information that follow-up mechanism 304 sends, produces control signal, then control signal is sent to projecting apparatus 301 and transmission screen 302, to realize next step.
S703: projector image is to transmission screen, and image reflects through transmission screen, through projection screen reflection, is finally sent to the right and left eyes of corresponding beholder;
Finally get back to step S701, in present embodiment, whole process is periodic, and constantly circulates with certain frequency, and this frequency was arranged according to the time of the persistence of vision.Therefore can see the image of continuous renewal by continuous print in beholder's eye, when beholder have mobile or beholder's quantity increases time, whole system can be made a response timely, ensures that beholder can see image by continuous print.
Be different from prior art, present embodiment obtains the positional information of beholder by follow-up mechanism, and be sent to feedback device, feedback device location information processes, the deflection angle that projecting apparatus sends image and transmission screen is controlled according to positional information, make the right and left eyes of beholder can see left-eye image and eye image respectively, and follow-up mechanism can monitor the position of beholder in real time, when the quantity of guarantee beholder or position change, corresponding image can be sent timely to beholder, realize the visual experience of hologram image with this.
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., based on a three-dimensional panoramic show system for transmission, it is characterized in that, comprising:
Projecting apparatus;
Transmission screen, it has the exit surface of predetermined surface function;
Projection screen, in the face of described transmission screen;
Wherein, the left-eye image that described projecting apparatus sends and eye image by described transmission screen there is the refraction of described exit surface of surface function after, reflexed to left eye and the right eye of beholder respectively by described projection screen, to realize three-dimensional panoramic show.
2. three-dimensional panoramic show system according to claim 1, is characterized in that, comprise further:
Follow-up mechanism, for following the trail of the position of described beholder to determine left eye position and the right eye position of described beholder;
Feedback device, receives the positional information of the described beholder of described follow-up mechanism feedback, and controls the image emissions of described projecting apparatus or the deflection angle of described transmission screen according to described positional information.
3. three-dimensional panoramic show system according to claim 2, is characterized in that, described follow-up mechanism is 3D imager.
4. three-dimensional panoramic show system according to claim 2, is characterized in that, described follow-up mechanism, described feedback device are integrated in described projecting apparatus.
5. three-dimensional panoramic show system according to claim 1, is characterized in that, described transmission screen to be integrated in described projecting apparatus and before being positioned at the camera lens of described projecting apparatus.
6. three-dimensional panoramic show system according to claim 1, is characterized in that, described projection screen is plane mirror.
7. three-dimensional panoramic show system according to claim 1, is characterized in that, the described exit surface of described transmission screen is made up of multiple continuous or discrete arc.
8. three-dimensional panoramic show system according to claim 7, is characterized in that, the described predetermined surface function of described exit surface is sinusoidal wave.
9. three-dimensional panoramic show system according to claim 1, is characterized in that, comprise further:
Image generator, connects described projecting apparatus to provide image to described projecting apparatus.
10. three-dimensional panoramic show system according to claim 8, is characterized in that, described image generator comprises further:
Iamge Segmentation device, for becoming described left-eye image and described eye image by described Iamge Segmentation.
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| CN112351358A (en) * | 2020-11-03 | 2021-02-09 | 浙江大学 | 360-degree free three-dimensional type three-dimensional display sound box based on face detection |
| CN113824947A (en) * | 2020-06-18 | 2021-12-21 | 观致汽车有限公司 | Projection type naked eye 3D display device, method, electronic device and storage medium |
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| CN101518096B (en) * | 2006-09-20 | 2011-06-22 | 苹果公司 | Three-dimensional display system |
| CN203217233U (en) * | 2012-10-25 | 2013-09-25 | 耿征 | True three-dimensional image display system |
| CN103809364A (en) * | 2012-11-08 | 2014-05-21 | 耿征 | True three-dimensional image display system and true three-dimensional image display method |
| CN204350206U (en) * | 2014-10-20 | 2015-05-20 | 深圳市亿思达科技集团有限公司 | A kind of three-dimensional panoramic show equipment based on transmission |
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| CN113824947A (en) * | 2020-06-18 | 2021-12-21 | 观致汽车有限公司 | Projection type naked eye 3D display device, method, electronic device and storage medium |
| CN112351358A (en) * | 2020-11-03 | 2021-02-09 | 浙江大学 | 360-degree free three-dimensional type three-dimensional display sound box based on face detection |
| CN112351358B (en) * | 2020-11-03 | 2022-03-25 | 浙江大学 | 360-degree free three-dimensional type three-dimensional display sound box based on face detection |
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