CN104394395A - Holographic image display method, device and system capable of changing scanning frequency - Google Patents
Holographic image display method, device and system capable of changing scanning frequency Download PDFInfo
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- CN104394395A CN104394395A CN201410527736.4A CN201410527736A CN104394395A CN 104394395 A CN104394395 A CN 104394395A CN 201410527736 A CN201410527736 A CN 201410527736A CN 104394395 A CN104394395 A CN 104394395A
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Abstract
The invention discloses a holographic image display method, device and system capable of changing the scanning frequency. The method comprises the following steps: tracking N observers and movement of eye positions thereof; changing the scanning frequency of projection equipment to N times of an original scanning frequency; correspondingly adjusting the rotating angle of each reflecting mirror in a programmable reflecting mirror array according to the tracked movement of the eye position of an ith observer during ith scanning of the projection equipment; modulating corresponding left eye and right eye three-dimensional images according to the tracked movement of the eye position of the ith observer and the rotating angles of the programmable reflecting mirrors; and projecting the three-dimensional images of the left eye and the right eye onto a projection screen in order to control optical projections emitted into the left eye and right eye of the ith observer. In this way, the observers can be permitted to move completely in a barrier-free way, and can observe uniquely-customized three-dimensional images.
Description
Technical field
The present invention relates to visual display technologies field, particularly relate to a kind of hologram image display packing, the Apparatus and system that can change scanning frequency.
Background technology
Holography (Holography) Display Technique of present appearance, holography can be understood as three-dimensional display object and picture, namely shows the image of whole pictures at a 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 prior art, three-dimensional (3D) Display Technique can provide hologram image, and the day by day universal and application of this Display Technique, it is not only in field of Computer Graphics, and is implemented equally in other different environment and technology.In 3D Display Technique, 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 these methods are normally successful, they are not widely accepted, this is because observer 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 hologram image display packing, the Apparatus and system that can change scanning frequency, allows observer complete and without hindrance the moves freely and can watch (holographic) three-dimensional image of unique custom.
For solving the problems of the technologies described above, the present invention adopt a technical scheme be: provide a kind of hologram image display packing that can change scanning frequency, described method comprises: the movement of following the trail of N number of observer and eye position thereof, N be greater than 0 natural number; N times that the scanning frequency of projector equipment is changed into preliminary sweep frequency, to carry out single pass when carrying out the projection of same picture for each observer; Wherein, scanning frequency when described preliminary sweep frequency is N=1; The rotational angle of each speculum in array of programmable mirrors is correspondingly adjusted according to the movement of the eye position of i-th observer tracked, with the left eye and the right eye that make described speculum able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to the described observer of correspondence when described projector equipment carries out i-th scanning; Wherein, described array of programmable mirrors is distributed in projection screen surface, a speculum able to programme in the corresponding described array of programmable mirrors of each location of pixels of described projection screen, and i is natural number and 0<i≤N; Corresponding left eye and right eye 3-D view is modulated according to the movement of the eye position of described i-th observer tracked and the rotational angle of described speculum able to programme, the 3-D view of described left eye and right eye is projected to described projection screen, thus controls the optical projection injecting described i-th observer's left eye and right eye.
Wherein, described method also comprises: tracing study person is to judge whether the quantity of observer is changed to N ± n from N; Wherein, n, N ± n is the natural number being greater than 0; If when the quantity of described observer is changed to N ± n from N, the scanning frequency of described projector equipment is changed into the N ± n of preliminary sweep frequency doubly; Then the step of the rotational angle of described adjustment speculum able to programme and the step of described modulating three-dimensional image is performed successively.
Wherein, whether described tracing study person, also comprises: determine that whether corresponding observer is effective according to the movement of the eye position of each described observer tracked from after N is changed to the step of N ± n with the quantity judging observer; Effective observer that statistics is determined is to determine the quantity of observer.
Wherein, whether whether the movement of the described eye position according to described each observer determines that the whether effective step of observer is specially: effective to determine corresponding observer within the scope of predetermined direction according to the movement of the eye position of described each observer; Wherein, described predetermined direction scope is the scope in direction, described projection screen place.
Wherein, the described step correspondingly adjusting the rotational angle of each speculum in array of programmable mirrors according to the movement of the eye position of i-th observer tracked when described projector equipment carries out i-th scanning is specially: correspondingly to adjust in described array of programmable mirrors each speculum relative to the angle of described projection screen surface, to change the normal direction of described speculum when described projector equipment carries out scanning for i-th time according to the movement of the eye position of i-th observer tracked.
Wherein, the movement of eye position and the rotational angle of described speculum able to programme of described i-th observer that described basis tracks modulate corresponding left eye and right eye 3-D view, the step that described left eye and the 3-D view of right eye project to described projection screen are comprised: associate with the normal of described speculum able to programme; Respectively the incident light of left eye 3-D view and right eye 3-D view is projected to the normal position of the speculum able to programme corresponding to described projection screen respective pixel, and correspondingly inject left eye and the right eye of described i-th observer from described normal position through the reflection of described speculum able to programme, thus respectively by the position of the three-dimensional image projection of left eye and right eye to corresponding left eye and right eye.
Wherein, described method also comprises: the movement responding the eye position of the N number of observer of described tracking, and correspondingly adjustment left eye and right eye 3-D view are to produce hologram image.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of image hologram display device that can change scanning frequency, described device comprises: projection screen, there is the reflector element array able to programme being distributed in its surface, and a reflector element able to programme in the corresponding described reflector element array able to programme of each location of pixels of described projection screen; Control unit, for correspondingly to adjust the reflection angle of each reflector element in described reflector element array able to programme according to the movement of the eye position of corresponding observer in the different scanning moment of projection same picture, with the left eye and the right eye that make described reflector element able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to corresponding described observer.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of holographic image display systems that can change scanning frequency, described system comprises tracing equipment, display unit, 3-dimensional image processing apparatus and projector equipment; Described tracing equipment is used for tracing study person to determine the quantity N of observer, and follows the trail of the movement of eye position of each observer; Wherein, N be greater than 0 natural number; Projector equipment, its scanning frequency is changed into the N of preliminary sweep frequency doubly, to carry out single pass when carrying out the projection of same picture for each observer by the quantity N for the observer tracked according to described tracing equipment; Wherein, scanning frequency when described preliminary sweep frequency is N=1; Described display unit comprises: projection screen, has the reflector element array able to programme being distributed in its surface, and a reflector element able to programme in the corresponding described reflector element array able to programme of each location of pixels of described projection screen; And control unit, the movement of the eye position of described i-th observer tracked according to described tracing equipment during for carrying out i-th scanning at described projector equipment correspondingly adjusts the reflection angle of each reflector element in described reflector element array able to programme, with the left eye and the right eye that make described reflector element able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to corresponding described i-th observer; Wherein, i is natural number and 0<i≤N; The reflection angle that described 3-dimensional image processing apparatus is used for the movement of the eye position of i-th observer tracked according to described tracing equipment when described projector equipment carries out i-th scanning and the reflector element described able to programme of described control unit adjustment modulates corresponding modulation left eye and right eye 3-D view, control described projector equipment respectively described left eye and right eye 3-D view to be projected to described projection screen, thus control the optical projection injecting described i-th observer's left eye and right eye.
Wherein, described 3-dimensional image processing apparatus comprises: graphics processing unit, for the image rendering of required display is become 3D rendering; Display interface and image segmentation unit, for being divided into left eye 3-D view and right eye 3-D view by the 3D rendering from described graphics processing unit; Signal processing unit, produces corresponding left-eye image modulation signal and eye image modulation signal for the movement of the eye position of observer that tracks according to described tracing equipment and the reflection angle of the described reflector element able to programme of described control unit modulation; Left-eye image modulating unit, the left-eye image modulation signal produced for responding described signal processing unit is modulated described left eye 3-D view, and controls described projector equipment by the described left eye three-dimensional image projection after modulation to described projection screen; And eye image modulating unit, the eye image modulation signal produced for responding described signal processing unit is modulated described right eye 3-D view, and controls described projector equipment by the described right eye three-dimensional image projection after modulation to described projection screen.
The invention has the beneficial effects as follows: the situation being different from prior art, array of programmable mirrors is laid in projection screen surface by the present invention, and the corresponding speculum able to programme of the pre-defined each location of pixels of projection screen, as the N number of observer tracked, the scanning frequency of projector equipment is changed into the N of preliminary sweep frequency doubly.Then correspondingly adjust the rotational angle of each speculum in array of programmable mirrors to modulate corresponding left eye and right eye 3-D view when this projector equipment carries out i-th scanning according to the movement of the eye position of i-th observer tracked, make the 3-D view of left eye and right eye to the optical projection can injecting this i-th observer's left eye and right eye during described projection screen projection.Thus allow observer completely and unhinderedly move freely and the three-dimensional image of unique custom can be watched.
Accompanying drawing explanation
Fig. 1 is a kind of schematic flow sheet that can change the hologram image display packing of scanning frequency in first embodiment of the invention;
Fig. 2-1,2-2,2-3 are the sequential charts of scanning frequency and observer's quantitative relation in embodiment of the present invention;
Fig. 3 is a kind of schematic flow sheet that can change the hologram image display packing of scanning frequency in second embodiment of the invention;
Fig. 4 is modulation left eye in embodiment of the present invention and right eye 3-D view method flow schematic diagram;
Fig. 5 is a kind of structural representation that can change the image hologram display device of scanning frequency in embodiment of the present invention;
Fig. 6 is a kind of structural representation that can change the holographic image display systems of scanning frequency in embodiment of the present invention.
Element numbers:
Embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with drawings and Examples, the present invention is described in detail.
Referring to Fig. 1, is a kind of schematic flow sheet that can change the hologram image display packing of scanning frequency in first embodiment of the invention.The hologram image display packing that can change scanning frequency shown in this execution mode comprises the steps:
Step S10, follows the trail of the movement of N number of observer and eye position thereof, N be greater than 0 natural number.
Step S11, N times that the scanning frequency of projector equipment is changed into preliminary sweep frequency, to carry out single pass when carrying out the projection of same picture for each observer.Wherein, scanning frequency when this preliminary sweep frequency is N=1.
Step S12, the rotational angle of each speculum in array of programmable mirrors is correspondingly adjusted according to the movement of the eye position of i-th observer tracked, with the left eye and the right eye that make this speculum able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to this observer of correspondence when this projector equipment carries out i-th scanning.I is natural number and 0<i≤N.
Wherein, this array of programmable mirrors is distributed in projection screen surface, and each location of pixels of this projection screen is to should a speculum able to programme in array of programmable mirrors.
Step S13, corresponding left eye and right eye 3-D view is modulated according to the movement of the eye position of this i-th observer tracked and the rotational angle of this speculum able to programme, the 3-D view of this left eye and right eye is projected to this projection screen, thus controls the optical projection injecting this i-th observer's left eye and right eye.
Please refer to Fig. 2-1,2-2 and 2-3, it is the sequential chart of the scanning frequency in embodiment of the present invention and observer's quantitative relation.Wherein, the preliminary sweep frequency of this projector equipment be T1+T2 time period interscan once, and continue the T1 time.When only having an observer, projector equipment scans according to the sequential chart such as shown in Fig. 2-1, that is, carry out single pass at interval of time T2, and duration scanning is T1.That is, when only having an observer, only once effectively scan when carrying out the renewal of a picture.When there being two observers, projector equipment according to the such as sequential chart shown in Fig. 2-2,2-3, scan respectively by corresponding observer one and observer two.Now the scanning frequency of projector equipment becomes the time period interscan twice at T1+T2, that is, effective for sweep signal duration section T1 is divided into two sections of time period T3 and T4, wherein, T3=T4 or T3 ≠ T4.Now, within the renewal period of carrying out a picture, this projector equipment carries out first time scanning in the T3 time period provides corresponding projection for this observer one, and then the T4 time period carry out second time scanning and provide corresponding projection for this observer two, in fact observer one is identical with the projected image that observer two sees.
Referring to Fig. 2, is a kind of schematic flow sheet that can change the hologram image display packing of scanning frequency in second embodiment of the invention.The hologram image display packing that can change scanning frequency shown in this execution mode comprises the steps:
Step S20, follows the trail of the movement of N number of observer and eye position thereof, N be greater than 0 natural number.
Step S21, N times that the scanning frequency of projector equipment is changed into preliminary sweep frequency, to carry out single pass when carrying out the projection of same picture for each observer.Wherein, scanning frequency when this preliminary sweep frequency is N=1.
Step S22, correspondingly adjust the rotational angle of each speculum in array of programmable mirrors according to the movement of the eye position of i-th observer tracked when this projector equipment carries out i-th scanning, with the left eye and the right eye that make this speculum able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to this corresponding observer, i is natural number and 0<i≤N.
Wherein, this array of programmable mirrors is distributed in projection screen surface, and each location of pixels of this projection screen is to should a speculum able to programme in array of programmable mirrors.
Further, step S22 is specially: correspondingly to adjust in this array of programmable mirrors each speculum relative to the angle of this projection screen surface, to change the normal direction of this speculum when this projector equipment carries out i-th scanning according to the movement of the eye position of i-th observer tracked.
Step S23, corresponding left eye and right eye 3-D view is modulated according to the movement of the eye position of this i-th observer tracked and the rotational angle of this speculum able to programme, the 3-D view of this left eye and right eye is projected to this projection screen, thus controls the optical projection injecting this i-th observer's left eye and right eye.
Further, also respond the movement of the eye position of the N number of observer tracked, correspondingly adjustment left eye and right eye 3-D view are to produce hologram image, and make different observers watch corresponding hologram image to the projection of this projection screen this hologram image.
Please refer to Fig. 3, it is the method flow schematic diagram of the modulation left eye in embodiment of the present invention and right eye 3-D view.The method of the modulation left eye shown in this execution mode and right eye 3-D view, i.e. this step S23, comprise following sub-step:
Sub-step S230, associates with the normal of this speculum able to programme.
Sub-step S231, respectively the incident light of left eye 3-D view and right eye 3-D view is projected to the normal position of the speculum able to programme corresponding to this projection screen respective pixel, and correspondingly inject left eye and the right eye of this i-th observer from this normal position through the reflection of this speculum able to programme, thus respectively by the position of the three-dimensional image projection of left eye and right eye to corresponding left eye and right eye.
Step S24, follows the trail of this observer to judge whether the quantity of observer is changed to N ± n from N; Wherein, n, N ± n is the natural number being greater than 0.If so, then step S25 is entered, otherwise, continue to perform step S24.
According to the movement of the eye position of this observer each tracked, step S25, determines that whether corresponding observer is effective.If so, then step S26 is entered, otherwise, return step S24.
Step S26, effective observer that statistics is determined is to determine the quantity of observer.
Particularly, whether whether effective to determine corresponding observer within the scope of predetermined direction according to the movement of the eye position of this each observer.Wherein, this predetermined direction scope is the scope in this direction, projection screen place.
Step S27, changes into the N ± n of preliminary sweep frequency doubly by the scanning frequency of this projector equipment.Then, step S21 is returned.
Referring to Fig. 4, is a kind of structural representation that can change the image hologram display device of scanning frequency in embodiment of the present invention.This device 40 comprises:
Projection screen 41, has reflector element able to programme 42 array being distributed in its surface, and each pixel of this projection screen 41 is to should a reflector element 42 able to programme in reflector element array able to programme.
Control unit 43, for correspondingly to adjust the reflection angle of each reflector element 42 in this reflector element array able to programme according to the movement of the eye position of corresponding observer in the different scanning moment of projection same picture, with the left eye and the right eye that make this reflector element 42 able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to corresponding observer.
In the present embodiment, this reflector element 42 able to programme can be speculum, can also become the liquid crystal cells of box.
When this reflector element 42 able to programme is speculum, the movement of this control unit 43 eye position of person according to the observation correspondingly adjusts the angle of speculum able to programme relative to this projection screen 41 surface, to change the normal direction of this speculum able to programme.
When this reflector element 42 able to programme is liquid crystal cells, the movement of this control unit 43 eye position of person according to the observation correspondingly adjusts the voltage of the drive electrode of liquid crystal cells, to change liquid crystal distribution, thus change the refraction angle that incident light is transmitted to this liquid crystal cells.
Referring to Fig. 5, is a kind of structural representation that can change the holographic image display systems of scanning frequency in embodiment of the present invention.This system 50 comprises tracing equipment 51, display unit 52,3-dimensional image processing apparatus 53 and projector equipment 54.
This tracing equipment 51 to determine the quantity N of observer, and follows the trail of the movement of eye position of each observer for tracing study person, N be greater than 0 natural number.
Its scanning frequency is changed into the N of preliminary sweep frequency doubly, to carry out single pass when carrying out the projection of same picture for each observer for the quantity N of the observer tracked according to this tracing equipment 51 by this projector equipment 54.Wherein, scanning frequency when this preliminary sweep frequency is N=1.
This display unit 52 comprises projection screen 521 and control unit 522, wherein, this projection screen 521 has reflector element able to programme 523 array being distributed in its surface, and each pixel of this projection screen 521 is to should a reflector element 523 able to programme in reflector element array able to programme.The movement of the eye position of i-th observer tracked according to this tracing equipment 521 this control unit 522 is for carrying out i-th scanning during at this projector equipment 54 correspondingly adjusts the reflection angle of each reflector element 523 in this reflector element array able to programme, with the left eye and the right eye that make this reflector element 523 able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to this i-th observer.Wherein, i is natural number and 0<i≤N.
Further, this tracing equipment 51 also for tracing study person to judge whether the quantity of observer is changed to N ± n from N; Wherein, n, N ± n is the natural number being greater than 0.If when the quantity of this observer is changed to N ± n from N, this projector equipment 54 is also for again changing into the N ± n of preliminary sweep frequency doubly by its scanning frequency.
The movement of eye position and the reflection angle of this reflector element 523 able to programme of i-th observer tracked according to this tracing equipment 51 this 3-dimensional image processing apparatus 53 is for carrying out i-th scanning during at this projector equipment 54 modulate corresponding left eye and right eye 3-D view, respectively the 3-D view of this left eye and right eye is projected to this projection screen 521 to control this projector equipment 54, thus control the optical projection injecting this i-th observer's left eye and right eye.
Further, this 3-dimensional image processing apparatus 53 is also for responding the movement of the eye position of N number of observer that this tracing equipment 51 tracks, correspondingly adjustment left eye and right eye 3-D view are to produce hologram image, to control this projector equipment 54, this hologram image is projected 521 to this projection screen, make different observers watch corresponding hologram image.
Further, this 3-dimensional image processing apparatus 53 comprises:
Graphics processing unit 531, for becoming 3D rendering by the image rendering of required display.
Display interface and image segmentation unit 532, for being divided into left eye 3-D view and right eye 3-D view by the 3D rendering from this graphics processing unit 531.
Signal processing unit 533, the reflection angle of this reflector element 523 able to programme adjusted for the movement of the eye position of observer that tracks according to this tracing equipment 51 and this control unit 522 produces corresponding left-eye image modulation signal and eye image modulation signal.
Left-eye image modulating unit 534, the left-eye image modulation signal produced for responding this signal processing unit 533 is modulated this left eye 3-D view, controls this projector equipment 54 by the left eye three-dimensional image projection after modulation to this projection screen 521.
Eye image modulating unit 535, the eye image modulation signal produced for responding this signal processing unit 533 is modulated this right eye 3-D view, controls this projector equipment 54 by the right eye three-dimensional image projection after modulation to this projection screen 521.
In the present embodiment, this reflector element 523 able to programme can be speculum, can also become the liquid crystal cells of box.
When this reflector element 523 able to programme is speculum, the movement of this control unit 522 eye position of person according to the observation correspondingly adjusts the angle of this speculum able to programme relative to this projection screen 521 surface, to change the normal direction of this speculum able to programme.
Particularly, the normal direction of this reflector element able to programme that the movement of the eye position of observer that tracks according to this tracing equipment 51 of this signal processing unit 533 and this control unit 522 adjust produces this left-eye image modulation signal and eye image modulation signal.
This left-eye image modulating unit 534 and this eye image modulating unit 535 respond the normal position that the incident light of left eye 3-D view and right eye 3-D view is projected to reflector element able to programme 523 corresponding in this projection screen 521 respective pixel by left-eye image modulation signal that this signal processing unit 533 produces and eye image modulation signal respectively, make this incident light through the reflection of this reflector element 523 able to programme and correspondingly inject left eye and the right eye of this observer from this normal position, thus respectively by the position of the three-dimensional image projection of left eye and right eye to corresponding left eye and right eye.
When this reflector element 523 able to programme is liquid crystal cells, the movement of this control unit 522 eye position of person according to the observation correspondingly adjusts the voltage of the drive electrode of liquid crystal cells, to change liquid crystal distribution, thus change the refraction angle that incident light is transmitted to this liquid crystal cells.
A kind of hologram image display packing, Apparatus and system that can change scanning frequency provided by the invention, array of programmable mirrors is laid in projection screen surface, and the corresponding speculum able to programme of the pre-defined each location of pixels of projection screen, as the N number of observer tracked, the scanning frequency of projector equipment is changed into the N of preliminary sweep frequency doubly.Then correspondingly adjust the rotational angle of each speculum in array of programmable mirrors to modulate corresponding left eye and right eye 3-D view when this projector equipment carries out i-th scanning according to the movement of the eye position of i-th observer tracked, make the 3-D view of left eye and right eye to the optical projection can injecting this i-th observer's left eye and right eye during described projection screen projection.Thus allow observer completely and unhinderedly move freely and the three-dimensional image of unique custom can be watched.
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. can change a hologram image display packing for scanning frequency, it is characterized in that, described method comprises:
Follow the trail of the movement of N number of observer and eye position thereof, N be greater than 0 natural number;
N times that the scanning frequency of projector equipment is changed into preliminary sweep frequency, to carry out single pass when carrying out the projection of same picture for each observer; Wherein, scanning frequency when described preliminary sweep frequency is N=1;
The rotational angle of each speculum in array of programmable mirrors is correspondingly adjusted according to the movement of the eye position of i-th observer tracked, with the left eye and the right eye that make described speculum able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to the described observer of correspondence when described projector equipment carries out i-th scanning; Wherein, described array of programmable mirrors is distributed in projection screen surface, a speculum able to programme in the corresponding described array of programmable mirrors of each location of pixels of described projection screen, and i is natural number and 0<i≤N;
Corresponding left eye and right eye 3-D view is modulated according to the movement of the eye position of described i-th observer tracked and the rotational angle of described speculum able to programme, the 3-D view of described left eye and right eye is projected to described projection screen, thus controls the optical projection injecting described i-th observer's left eye and right eye.
2. the hologram image display packing that can change scanning frequency according to claim 1, it is characterized in that, described method also comprises:
Tracing study person is to judge whether the quantity of observer is changed to N ± n from N; Wherein, n, N ± n is the natural number being greater than 0;
If when the quantity of described observer is changed to N ± n from N, the scanning frequency of described projector equipment is changed into the N ± n of preliminary sweep frequency doubly; Then the step of the rotational angle of described adjustment speculum able to programme and the step of described modulating three-dimensional image is performed successively.
3. the hologram image display packing that can change scanning frequency according to claim 2, is characterized in that, whether described tracing study person, also comprises from after N is changed to the step of N ± n with the quantity judging observer:
Determine that whether corresponding observer is effective according to the movement of the eye position of each described observer tracked;
Effective observer that statistics is determined is to determine the quantity of observer.
4. the hologram image display packing that can change scanning frequency according to claim 3, is characterized in that, the movement of the described eye position according to described each observer determines that the whether effective step of observer is specially:
Whether whether effective to determine corresponding observer within the scope of predetermined direction according to the movement of the eye position of described each observer; Wherein, described predetermined direction scope is the scope in direction, described projection screen place.
5. the hologram image display packing that can change scanning frequency according to claim 1, it is characterized in that, the described step correspondingly adjusting the rotational angle of each speculum in array of programmable mirrors according to the movement of the eye position of i-th observer tracked when described projector equipment carries out i-th scanning is specially: correspondingly to adjust in described array of programmable mirrors each speculum relative to the angle of described projection screen surface when described projector equipment carries out scanning for i-th time according to the movement of the eye position of i-th observer tracked, to change the normal direction of described speculum.
6. the hologram image display packing that can change scanning frequency according to claim 5, it is characterized in that, the movement of eye position and the rotational angle of described speculum able to programme of described i-th observer that described basis tracks modulate corresponding left eye and right eye 3-D view, the step that the 3-D view of described left eye and right eye projects to described projection screen are comprised:
Associate with the normal of described speculum able to programme;
Respectively the incident light of left eye 3-D view and right eye 3-D view is projected to the normal position of the speculum able to programme corresponding to described projection screen respective pixel, and correspondingly inject left eye and the right eye of described i-th observer from described normal position through the reflection of described speculum able to programme, thus respectively by the position of the three-dimensional image projection of left eye and right eye to corresponding left eye and right eye.
7. the display packing of hologram image according to claim 1, is characterized in that, described method also comprises:
Respond the movement of the eye position of the N number of observer of described tracking, correspondingly adjustment left eye and right eye 3-D view are to produce hologram image.
8. can change an image hologram display device for scanning frequency, it is characterized in that, described device comprises:
Projection screen, has the reflector element array able to programme being distributed in its surface, and a reflector element able to programme in the corresponding described reflector element array able to programme of each location of pixels of described projection screen;
Control unit, for correspondingly to adjust the reflection angle of each reflector element in described reflector element array able to programme according to the movement of the eye position of corresponding observer in the different scanning moment of projection same picture, with the left eye and the right eye that make described reflector element able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to corresponding described observer.
9. can change a holographic image display systems for scanning frequency, it is characterized in that, described system comprises tracing equipment, display unit, 3-dimensional image processing apparatus and projector equipment;
Described tracing equipment is used for tracing study person to determine the quantity N of observer, and follows the trail of the movement of eye position of each observer; Wherein, N be greater than 0 natural number;
Projector equipment, its scanning frequency is changed into the N of preliminary sweep frequency doubly, to carry out single pass when carrying out the projection of same picture for each observer by the quantity N for the observer tracked according to described tracing equipment; Wherein, scanning frequency when described preliminary sweep frequency is N=1;
Described display unit comprises:
Projection screen, has the reflector element array able to programme being distributed in its surface, and a reflector element able to programme in the corresponding described reflector element array able to programme of each location of pixels of described projection screen; And
Control unit, the movement of the eye position of described i-th observer tracked according to described tracing equipment during for carrying out i-th scanning at described projector equipment correspondingly adjusts the reflection angle of each reflector element in described reflector element array able to programme, with the left eye and the right eye that make described reflector element able to programme respectively the projection ray of corresponding left eye and right eye be reflexed to corresponding described i-th observer; Wherein, i is natural number and 0<i≤N;
The reflection angle that described 3-dimensional image processing apparatus is used for the movement of the eye position of i-th observer tracked according to described tracing equipment when described projector equipment carries out i-th scanning and the reflector element described able to programme of described control unit adjustment modulates corresponding modulation left eye and right eye 3-D view, control described projector equipment respectively described left eye and right eye 3-D view to be projected to described projection screen, thus control the optical projection injecting described i-th observer's left eye and right eye.
10. the holographic image display systems that can change scanning frequency according to claim 8, is characterized in that, described 3-dimensional image processing apparatus comprises:
Graphics processing unit, for becoming 3D rendering by the image rendering of required display;
Display interface and image segmentation unit, for being divided into left eye 3-D view and right eye 3-D view by the 3D rendering from described graphics processing unit;
Signal processing unit, the reflection angle for the movement of the eye position of observer that tracks according to described tracing equipment and the reflector element described able to programme of described control unit adjustment produces corresponding left-eye image modulation signal and eye image modulation signal;
Left-eye image modulating unit, the left-eye image modulation signal produced for responding described signal processing unit is modulated described left eye 3-D view, and controls described projector equipment by the described left eye three-dimensional image projection after modulation to described projection screen; And
Eye image modulating unit, the eye image modulation signal produced for responding described signal processing unit is modulated described right eye 3-D view, and controls described projector equipment by the described right eye three-dimensional image projection after modulation to described projection screen.
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