TWI654447B - Image display system and image display method - Google Patents

Abstract

The image display system includes a projection unit, a screen, and a first auxiliary projector. The projection unit is configured to emit a plurality of beams such that the beams are projected onto an area of the image plane. The screen faces the set of projectors for providing an image plane to image the beams onto the image plane to produce a stereoscopic imaged object. The first auxiliary projector is configured to emit at least one additional light beam to an area on the image plane to increase incident light viewing angle information of the stereoscopic image object at a viewpoint of the field of view.

Description

Image display system and image display method

The present invention describes an image display system and an image display method, and more particularly, an image display system and an image display method having an incident light angle of view information for increasing a stereoscopic image.

With the rapid development of technology and the development of projectors, projectors with various functions are gradually available. Many high-end and multi-function projectors are also being used in everyday life. Today's commonly used projectors can be classified into Digital Light Processing (DLP) projectors, 3HTPS Liquid Crystal Display (3LCD) projectors, and Liquid Crystal on Silicon (LCOS). Projector. The 3LCD projector uses three swatch projections, so the image displayed on the screen is stable and smooth in the light control. The color saturation of the 3LCD projector is high. The LCOS projector integrates semiconductor and liquid crystal process technology, and its projection quality is excellent, even reaching 4K image quality. LCOS projectors have advantages in color, contrast, brightness, light efficiency and resolution. DLP projectors offer the advantages of high contrast, miniature size, and enclosed light paths. DLP projectors are also capable of playing high-contrast images, are very sharp in color, and are inexpensive, making them the most versatile projectors in recent years.

In recent years, due to the increasing popularity of stereoscopic image technology, the above-mentioned projectors have also been gradually applied to imaging technologies for generating three-dimensional objects. Generally, in the stereoscopic vision of the naked eye, the human eye must see the angle of view of multiple projected images, and the human brain can fuse image information of multiple different viewing angles, and the object has the illusion of image depth, which eventually leads to formation when the human eye views the object. Stereoscopic effects. Therefore, in order to generate image information of a plurality of different viewing angles, the stereoscopic image system must utilize a plurality of different projectors to project the light beam onto the screen at multiple angles. The better the quality of the stereoscopic effect, the more the number of projectors is needed. Moreover, with today's large-size screen specifications, even if the projector array is used to achieve stereoscopic effects, since the projector's mounting position and the direction of the projected beam are fixed, the stereoscopic image of a certain area of the screen can only be used. It is generated with a part of the preset projector. That is, in the case where the total number of projectors, the erecting position, and the direction of the projected beam are fixed, in order to prevent the image from being dead, the stereoscopic image of a certain area of the screen will only use the projector corresponding to one of the presets. To produce. Therefore, the image quality of the stereoscopic image object cannot be dynamically adjusted and cannot be optimized.

An embodiment of the invention provides an image display system including a projection unit, a screen, and a first auxiliary projector. The projection unit is configured to emit a plurality of beams such that the beams are projected onto an area of the image plane. The screen faces the set of projectors for providing an image plane to image the beams onto the image plane to produce a stereoscopic imaged object. The first auxiliary projector is configured to emit at least one additional light beam to an area on the image plane to increase incident light viewing angle information of the at least one viewpoint of the stereoscopic image object in the field of view.

Another embodiment of the present invention provides an image display method, comprising: generating, by a projection unit, a plurality of light beams, and projecting the light beams on an image plane, so that the light beams are imaged on an image plane to generate a stereoscopic image object. And the first auxiliary projector emits at least one additional light beam to an area on the image plane to increase incident light viewing angle information of the at least one viewpoint of the stereoscopic image object in the field of view.

1 is an architectural diagram of an embodiment of an image display system 100 of the present invention. The image display system 100 includes a projection unit 10, a first auxiliary projector 11, a processor 12, an image capturing device 13, and a screen 14. The projection unit 10 can include a plurality of projectors of any size, for example, a Digital Light Processing (DLP) projector, a 3HTPS Liquid Crystal Display (3LCD) projector, or a 矽-based liquid crystal. (Liquid Crystal on Silicon, LCOS) projectors and so on. However, for convenience of explanation, the projector below will be described using a DLP projector. The projection unit 10 is configured to emit a plurality of light beams LO such that the light beams are projected in a region R on the image plane. For example, in Figure 1, each of the projectors 10 can emit four beams for projection onto the image plane. However, the present invention does not limit the number of projectors within the projection unit 10, as well as the number of beams that each projector can emit. Any reasonable technical changes are within the scope of the present invention. The screen 14 faces the set of projectors 10 for providing an image plane to image the beams onto the region R of the image plane to produce a stereoscopic imaged object. As described herein, the image receiving end 15 can be a viewer. The field of view VR of the image receiving end 15 can be regarded as a field of view in the vicinity of a person, such as the range of the line of sight when the head is rotated. Since the field of view VR is in the vicinity of the image receiving end 15, the image receiving end 15 receives the message of the stereoscopic image object. If the image receiving end 15 is a person, the person will be attracted by the light and shadow within the field of view VR. The viewpoint VP may be an end point of a stereoscopic image object generated by viewing a plurality of beams emitted by the projection unit 10 through the screen 14 within the field of view VR. In other words, the region R on the image plane can be within the field of view VR, and the field of view VR includes at least one viewpoint VP. As such, the stereoscopic imaged object produced on the screen 14 can be easily viewed by the image receiving end 15. In the present embodiment, each of the projectors in the projection unit 10 can emit four beams. In an actual case, the beams can independently generate images. The projection positions of the four beams are different. Therefore, the projection unit 10 can support images of a plurality of viewing angles. For example, images of four viewing angles can be supported at each viewpoint of the field of view VR. Therefore, the image display system 100 can transmit the stereoscopic image information of multiple viewing angles to the field of view VR of the image receiving end 15 through the projection unit 10.

In order to increase the image quality of the stereoscopic image object, the first auxiliary projector 11 of the image display system 100 can be used to emit at least one additional light beam LA to a region R on the image plane to increase the incidence of the stereoscopic image object at the viewpoint VP of the field of view VR. Light perspective information. For example, the first auxiliary projector 11 can emit two additional light beams LA to a region R on the image plane such that the stereoscopic imaging object has incident light viewing angle information of the two viewpoints VP on the left side of the field of view VR, from four incident light viewing angles. Becomes five incident light viewing angles. Broadly speaking, before the first auxiliary projector 11 emits at least one additional light beam LA to the region R on the image plane, the viewpoint VP of the visual field range VR carries N incident light viewing angle information of the stereoscopic image object, and is first After the auxiliary projector 11 emits at least one additional light beam LA to the region R on the image plane, the viewpoint VP of the field of view VR has N+1 incident light viewing angle information of the stereoscopic image object, and N is a positive integer greater than 1. In other words, after the first auxiliary projector 11 is added, the incident light viewing angle information in the field of view VR is increased (the density is increased), so that the image quality of the stereoscopic imaged object can be increased.

The image capturing device 13 of the image display system 100 can be used to track the position of the image receiving end 15. For example, the image capturing device 13 can be any form of camera or lens having a photosensitive element for tracking the position of the customer. The processor 12 is coupled to the image capturing device 13 , the projection unit 10 , and the first auxiliary projector 11 for adjusting a plurality of projection directions of the projection unit 10 and the first auxiliary projector 11 according to the position of the image receiving end 15 . For example, after the image capturing device 13 captures the image of the customer, the image data can be transmitted to the processor 12. The processor 12 can determine the location of the customer and determine its priority based on the image data. For example, the processor 12 can identify whether the identity of the customer is an important target customer based on the image data. If the priority of the image receiving end 15 is greater than a predetermined value (eg, the identity of the customer is identified as the target customer), the processor 12 may map the projection direction (beam LO and beam LA) of the projection unit 10 and the first auxiliary projector 11 The image plane projection near the quasi-image receiving end 15 is such that the image receiving end 15 receives the high-quality stereoscopic image object. For example, the processor 12 can align the projection direction of the first auxiliary projector 11 with the image plane near the image receiving end 15 according to the priority and position of the image receiving end 15 to enhance the image quality of the stereoscopic image object. However, in practice, the first auxiliary projector 11 does not align all of the beam resources with the image plane near the image receiving end 15. For example, when the first auxiliary projector 11 has the ability to transmit light beams in four directions, the processor 12 can control the first auxiliary projector 11 to generate light beams in two directions to project to the image plane near the image receiving end 15. The beams of the remaining two directions of the first auxiliary projector 11 are used to prepare for the projection of the remaining areas, or to project the original area. More generally, the first auxiliary projector 11 has the ability to transmit M beams to the image plane. Among the M beams, P beams are projected into a region R on the image plane, and M-P beams are projected outside the region R on the image plane, M and P are two positive integers and M is greater than P. In another embodiment, M-P beams may also be projected to an image plane adjacent to region R to produce an image adjacent to region R. The manner in which the partial resources of the first auxiliary projector 11 are thus retained has the following advantages. First, since the angle of view of the incident light in the field of view VR is increased, the image quality of the stereoscopic image object can be improved. Second, when the screen 14 has other areas to display the stereoscopic image object, the remaining light beams of the first auxiliary projector 11 can support the generation of the stereoscopic image objects of other areas. Further, in the image display system 100, the first auxiliary projector 11 and the region R are separated by a horizontal distance of at least two projectors. For example, the position coordinates of the projectors from left to right of the projection unit 10 may be P1 to P3. The original settings of the projection unit 10 are stereoscopic imaged objects used to create the region R of the screen 14. The position coordinates of the first auxiliary projector 11 may be P5. It is indicated that the first auxiliary projector 11 and one of the rightmost projectors of the projection unit 10 have a horizontal distance of two projectors (for example, distances of position coordinates P3 to P5). However, the present invention does not limit the position of the first auxiliary projector 11, and any reasonable change in position of the projector is within the scope of the present invention.

FIG. 2 is a block diagram of the projector in the image display system 100. The projector of the image display system 100 (such as the first auxiliary projector 11 and each of the projector units 10) may include a light source device 10a, a light valve device 10b, an optical actuator 10c, and a lens device 10d. The light source device 10a is configured to emit an optical signal LS. For example, the light source device 10a can be regarded as a signal transmitting source that converts a digital signal into an optical signal LS. The light source device 10a can generate a light signal LS in a fixed direction. The light valve device 10b faces the light source device 10a for modulating the optical signal LS to generate the modulated optical signal MLS. For example, the light valve device 10b can generate a modulated light signal MLS using a modulation technique of refraction or reflection. An optical actuator 10c faces the light valve device 10b for refracting the modulated optical signal MLS to generate a plurality of refracted optical signals RLS1 to RLS4 at different times. For example, the optical actuator 10c has a rotating shaft. The optical actuator 10c can refract the modulated optical signals MLS separately at different times by using a rotating shaft to generate a plurality of refracted optical signals RLS1 to RLS4. The lens device 10d faces the optical actuator 10c for outputting a plurality of refracted optical signals RLS1 to RLS4 generated in different time periods to generate a plurality of output optical signals LO1 to LO4. When the architecture of the first auxiliary projector 11 is the projector architecture of FIG. 2, at least one of the plurality of refracted optical signals RLS1 to RLS4 generated by the lens device 10d at different times outputs optical signals (eg, LO1 and LO2). At least one additional light beam may be formed and projected onto the region R on the image plane to increase the incident light viewing angle information of the stereoscopic imaged object at the viewpoint VP of the field of view VR. Also, in Fig. 2, the projector can generate a plurality of output optical signals LO1 to LO4. The first output optical signal LO1 outputted in the first direction is imaged at a first position on the image plane. The second output optical signal LO2 outputted in the second direction is imaged at a second position on the image plane. The third output optical signal LO3 outputted in the third direction is imaged at a third position on the image plane. The fourth output optical signal LO4 outputted in the fourth direction is imaged at a fourth position on the image plane. Also, the four positions that a single projector images on the image plane can be separated by a distance. For example, the first location and the second location may be separated by Q pixels, where Q is greater than or equal to 4. Also, as mentioned above, the processor 12 can control the light beam of at least one direction of the first auxiliary projector 11 to be projected to the image plane near the image receiving end 15. More precisely, when the architecture of the first auxiliary projector 11 is the architecture shown in FIG. 2, the processor 12 can control the rotation angle of the optical actuator 10c inside the first auxiliary projector 11 to make the modulation The optical signal MLS is refracted by the optical actuator 10c, and then projected through the lens device 10d to the image plane near the image receiving end 15. In other words, the rotating shaft of the optical actuator 10c has an upper limit of rotation. The optical actuator 10c can refract the modulated optical signal MLS at a first angle according to the position of the image receiving end 15 to project the modulated optical signal MLS to the image plane in the vicinity of the position of the image receiving end 15. And the first angle is less than or equal to the upper limit of the rotation. However, if the horizontal distance between the position of the image receiving end 15 and the first auxiliary projector 11 is too large, the first angle in the first auxiliary projector 11 is greater than the upper rotation angle, indicating that the first auxiliary projector 11 cannot support the angle. Oversized projection of the angle of view. Therefore, the processor 12 will operate the first auxiliary projector 11 in a standby state.

FIG. 3 is a schematic diagram of the image display system 100 in which the projector generates a plurality of output optical signals LO1 to LO4 at different angles in a time sharing manner. As mentioned before, the optical actuator 10c has a rotating shaft. The optical actuator 10c can refract the modulated optical signals MLS separately at different times by using a rotating shaft to generate a plurality of refracted optical signals RLS1 to RLS4. For example, the optical actuator 10c refracts the modulated optical signal MLS at a first angle during the first time interval T1 to generate the first refracted optical signal RLS1. The first refracted optical signal RLS1 is converted into the first output optical signal LO1 through the lens device 10d. The optical actuator 10c refracts the modulated optical signal MLS at a second angle during the second time interval T2 to generate a second refracted optical signal RLS2. The second refracted optical signal RLS2 is converted into the second output optical signal LO2 through the lens device 10d. The optical actuator 10c refracts the modulated optical signal MLS at a third angle during the third time interval T3 to generate a third refracted optical signal RLS3. The third refracted optical signal RLS3 is converted into a third output optical signal LO3 through the lens device 10d. The optical actuator 10c refracts the modulated optical signal MLS at a fourth angle during the fourth time interval T4 to generate a fourth refracted optical signal RLS4. The fourth refracted optical signal RLS4 is converted into a fourth output optical signal LO4 through the lens device 10d. That is, in the projector of the image display system 100, the four refracting optical signals RLS1 to RLS4 can be transmitted at four different angles, so that the four output optical signals LO1 to LO4 generated can be four different on the image plane. Position imaging. In other words, in Fig. 3, the operating frequency of the optical actuator 10c can be four times the frequency of the optical signal LS generated by the light source device 10a.

4 is a schematic diagram of the introduction of a plurality of auxiliary projectors in the image display system 100. To avoid confusion, an image display system incorporating a plurality of auxiliary projectors is referred to herein as an image display system 200. Further, in order to simplify the description, the image capturing means 13 for capturing the position of the image receiving end 15 and the processor 12 for controlling each of the projectors will be omitted. In the image display system 200, the first auxiliary projector 11 can be utilized to increase the imaging quality of the stereoscopic imaged object within the field of view VR at the viewpoint VP. The image display system 200 can also utilize the second auxiliary projector 16, the third auxiliary projector 17, and the fourth auxiliary projector 18 to further enhance the imaging quality of the stereoscopic image object at the viewpoint VP in the field of view VR. The second auxiliary projector 16 , the third auxiliary projector 17 , and the fourth auxiliary projector 18 may also be coupled to the processor 12 in the image display system 100 . Moreover, the second auxiliary projector 16 can be used to emit at least one additional light beam LA2 to the image plane (eg, screen 14) to increase incident light viewing angle information of the stereoscopic imaged object within the field of view VR. The third auxiliary projector 17 can be used to emit at least one additional light beam LA3 to the image plane (eg, screen 14) to increase the incident light viewing angle information of the stereoscopic imaged object within the field of view VR. The fourth auxiliary projector 18 can be used to emit at least one additional light beam LA4 to the image plane (eg, screen 14) to increase incident light viewing angle information of the stereoscopic imaged object within the field of view VR. Moreover, the first auxiliary projector 11 and the second auxiliary projector 16 may be two non-adjacent projectors, or may be two adjacent projectors. The third auxiliary projector 17 and the fourth auxiliary projector 18 may be two non-adjacent projectors, or two adjacent projectors. Any reasonable number of auxiliary projectors and placement locations are within the scope of the present invention. In the image display system 200, when each of the projectors 10 (assuming three projectors inside) can project light beams in four directions, if the first auxiliary projector 11 and the second auxiliary projection are missing For the machine 16, the third auxiliary projector 17, and the fourth auxiliary projector 18, the total number of viewing angles of the VR in the field of view is 3 × 4 = 12. However, after the first auxiliary projector 11, the second auxiliary projector 16, the third auxiliary projector 17, and the fourth auxiliary projector 18 are introduced to enhance the image quality of the stereoscopic imaged object, the first auxiliary projector 11 is assumed. The second auxiliary projector 16, the third auxiliary projector 17, and the fourth auxiliary projector 18 can project light beams in two directions, and the total number of viewing angles of the VR in the field of view is 12+8=20. In other words, in the image display system 200, the more auxiliary projectors are introduced, the more the information density of the viewing angle of the VR in the field of view increases, so that the image quality of the stereoscopic imaged object can be increased.

Fig. 5 is a flow chart showing a method of displaying an image in the image display system 100. The image display system 100 performs the image display method and may include steps S501 to S503. Any reasonable step changes and technical changes are within the scope of the present invention. Steps S501 to S503 are described below.  <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Step S501: </td><td> A plurality of light beams LO are emitted by the projection unit 10; /td></tr><tr><td> Step S502: </td><td> Projecting the light beams LO on the region R on the image plane, so that the light beams LO are imaged in the region R of the image plane Generating a stereoscopic image object; </td></tr><tr><td> Step S503: </td><td> The first auxiliary projector 11 emits at least one additional light beam LA to a region R on the image plane To increase the incident light viewing angle information of the stereoscopic image object at the viewpoint VP of the field of view VR. </td></tr></TBODY></TABLE>

The descriptions of the steps S501 to S503 and the operation modes have been described in detail in the foregoing, and thus will not be described again. As mentioned above, it should be understood that the auxiliary projector does not align all of the beam resources with the image plane near the image receiving end 15. For example, in the image display system 100 and the image display system 200, each of the auxiliary projectors has the ability to transmit light beams in four directions. However, the processor 12 can control each of the auxiliary projectors to emit only two directions of light beams for projection to the image plane near the image receiving end 15. Therefore, since the processor 12 retains part of the resources of the auxiliary projector, the image display system 100 and the image display system 200 can simultaneously support two or more image receiving terminals 15 (for example, customers). In other words, when two or more image receiving ends 15 are at different positions, the image display system 100 and the image display system 200 can transmit the image information to the two or more image receiving ends 15.

In summary, the present invention describes an image display system and an image display method. The image display system can image the three-dimensional object through the screen, so that the image receiving end receives the information of the stereoscopic image object. Moreover, in order to enhance the image quality of the stereoscopic image object, the image display system can introduce at least one auxiliary projector. Each of the at least one auxiliary projector is configured to project at least one beam of light to an image plane near the image receiving end. Therefore, after introducing at least one auxiliary projector, the image display system can increase the incident light viewing angle information of the stereoscopic image object in the field of view. The increase in the viewing angle information of the incident light also means that the image resolution of the stereoscopic image object is improved. Moreover, the processor in the image display system can dynamically adjust the resources of each auxiliary projector so that the image display system does not have an image dead angle. Therefore, the image display system of the present invention has low complexity, enhanced stereo image quality, and the ability to dynamically adjust projector resources. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100‧‧‧Image display system

10‧‧‧Projection unit

11‧‧‧First Auxiliary Projector

12‧‧‧ Processor

13‧‧‧Image capture device

14‧‧‧ screen

15‧‧‧Image receiving end

LO‧‧‧beam

LA, LA1 to LA4‧‧‧ extra beam

R‧‧‧ area

VP‧‧ Viewpoint

VR‧‧ Scope of view

LS‧‧‧Optical signal

MLS‧‧‧ modulated optical signal

RLS1 to RLS4‧‧‧ refracted optical signals

LO1 to LO4‧‧‧ output optical signal

10a‧‧‧Light source device

10b‧‧‧Light valve device

10c‧‧‧Optical Actuator

10d‧‧‧Lens device

T1 to T4‧‧‧ time interval

16‧‧‧Second auxiliary projector

17‧‧‧ Third auxiliary projector

18‧‧‧4th auxiliary projector

S501 to S503‧‧‧ steps

Figure 1 is a block diagram of an embodiment of an image display system of the present invention. Fig. 2 is a block diagram of the projector in the image display system of Fig. 1. Figure 3 is a schematic diagram of the image display system of Figure 1 in which the projector uses a time-sharing method to generate a plurality of output optical signals at different angles. Fig. 4 is a schematic diagram showing the introduction of a plurality of auxiliary projectors in the image display system of Fig. 1. Fig. 5 is a flow chart showing a method of displaying an image in the image display system of Fig. 1.

Claims (14)

An image display system comprising: a set of projectors for emitting a plurality of light beams to project the light beams onto an area on an image plane; and a screen facing the set of projectors for providing the image plane So that the beams are imaged on the area of the image plane to produce a stereoscopic image object; a first auxiliary projector for emitting at least one additional light beam to the area on the image plane to increase the volume An image capturing device for viewing at least one viewpoint of a field of view; an image capturing device for tracking a position of an image receiving end; and a processor coupled to the image capturing device and the group of projectors And the first auxiliary projector is configured to adjust a plurality of projection directions of the set of projectors and the first auxiliary projector according to the position of the image receiving end; wherein the processor determines, by the image capturing device, the image receiving end a priority, if the priority of the image receiving end is greater than a predetermined value, the processor and the projections of the set of projectors and the first auxiliary projector The alignment of the image plane close to the image receiving end so that the image receiving terminal for receiving a high-quality stereoscopic imaging of the object. The system of claim 1, wherein before the first auxiliary projector emits the at least one additional light beam to the area on the image plane, the view point of the field of view has N incidents of the stereoscopic image object. Optical viewing angle information, and after the first auxiliary projector sends the at least one additional light beam to the region on the image plane, the N+1 incident light viewing angle information of the stereoscopic image object is included in the visual field of the visual field range And N is a positive integer greater than one. An image display system comprising: a set of projectors for emitting a plurality of beams such that the beams are projected onto an area on an image plane; a screen facing the set of projectors for providing the image plane to image the beams And generating a stereoscopic image object on the region of the image plane; and a first auxiliary projector for emitting at least one additional light beam to the region on the image plane to increase the stereoscopic image object in a field of view At least one viewpoint of incident light viewing angle information; wherein the first auxiliary projector is configured to transmit M light beams to the image plane, wherein among the M light beams, P light beams are projected into the region on the image plane, And MP beams are projected outside the region on the image plane, M and P are two positive integers and M is greater than P. The system of claim 3, wherein the M-P beams are projected onto an image plane adjacent to the region to produce an image adjacent to the region. The system of claim 1 or 3, wherein the first auxiliary projector is spaced from the area by a horizontal distance of at least two projectors. The system of claim 1 or 3, further comprising: a second auxiliary projector for emitting at least one additional light beam to the area on the image plane to enhance the viewpoint of the stereoscopic image object in the field of view Imaging quality; wherein the first auxiliary projector is adjacent or not adjacent to the second auxiliary projector. An image display system comprising: a set of projectors for emitting a plurality of light beams to project the light beams in an area on an image plane; a screen facing the set of projectors for providing the image plane to image the light beams on the area of the image plane to generate a stereoscopic image object; and a first auxiliary projector for emitting Having at least one additional light beam to the region on the image plane to increase incident light viewing angle information of the stereoscopic image object at least one viewpoint of a field of view, the first auxiliary projector comprising: a light source device for emitting a light a light valve device facing the light source device for modulating the optical signal to generate a modulated optical signal; an optical actuator facing the optical valve device for The modulated optical signal is refracted to generate a plurality of refracted optical signals at different times; and a lens device facing the optical actuator for outputting the refracted optical signals generated at different times to generate a plurality of output optical signals; wherein at least one of the output optical signals forms the at least one additional light beam to the area on the image plane to increase the stereoscopic image object The viewpoint wild range of the incident angle of view information. The system of claim 7, wherein the optical actuator has a rotating shaft, and the optical actuator uses the rotating shaft to refract the modulated optical signals separately at different times to generate the refracted optical signals. The system of claim 8, wherein the optical actuator refracts the modulated optical signal at a first angle for a first time to cause the modulated optical signal to be output through the lens device in a first direction a first output optical signal, the optical actuator refracts the modulated optical signal at a second angle at a second time, so that the modulated optical signal outputs a second through the lens device in a second direction Output Optical signal. The system of claim 9, wherein the first output optical signal outputted by the first direction is imaged at a first position on the image plane, and the second output optical signal output by the second direction is at the image plane A second position is imaged, and the first position is separated from the second position by Q pixels, wherein Q is greater than or equal to a positive integer of 4. The system of claim 7, wherein the rotating shaft of the optical actuator has an upper limit of rotation, and the optical actuator adjusts the modulated optical signal at a first time according to a position of an image receiving end. Refraction at a first angle to project the modulated optical signal to an image plane of the region near the location of the image receiving end, and the first angle is less than or equal to the upper rotational angle. An image display method includes: emitting a plurality of beams by a group of projectors; projecting the beams onto an area on an image plane to image the beams on the area of the image plane to generate a stereoscopic image And the first auxiliary projector emits at least one additional light beam to the area on the image plane to increase incident light viewing angle information of the stereoscopic image object at least one viewpoint of a field of view; wherein the first auxiliary projector Sending M light beams to the image plane, among the M light beams, P light beams are projected into the area on the image plane, and MP light beams are projected to outside the area on the image plane, M and P It is two positive integers and M is greater than P. The method of claim 12, further comprising: tracking a location of an image receiving end; and According to the position, the plurality of projection directions of the set of projectors and the first auxiliary projector are adjusted. The method of claim 12, further comprising: a second auxiliary projector emitting at least one additional light beam to the area on the image plane to enhance imaging quality of the stereoscopic imaged object at the viewpoint of the field of view.