Same-screen stereoscopic display method and device for multiple independent viewpoints

Abstract

The invention discloses a same-screen stereoscopic display method and device for multiple independent viewpoints. Grouping the image sequence by taking n moments as a group, wherein each moment comprises a pair of left and right eye images; in an image space domain, based on a light splitting stereo display technology or a color separation stereo display technology, a pair of L and R images is packaged into an image with left and right eye image information, a corresponding index table is established, and a packaged data packet is sent to a display terminal; the processed images are displayed on a display terminal according to a time sequence, shutters of different stereo glasses are controlled according to index table information, it is required that the left and right lens shutters of the stereo glasses of the viewpoint are opened only when the images needing to be watched at the corresponding viewpoint are played, and finally the images are packaged according to corresponding packaging rules. And splitting L and R images at a stereo glasses end in an image space domain, so that a plurality of independent viewpoints can obtain respective independent and different left and right eye images on the same playing screen, and respective independent stereo vision is formed.

Description

Technical Field

[0001] The present invention belongs to the technical field of three-dimensional stereoscopic display, relates to independent viewpoint display, and specifically relates to a method and device for simultaneous-screen stereoscopic display with multiple independent viewpoints. Background Art

[0002] Due to the different spatial positions of the two eyes, there is a binocular viewing angle difference when a person observes an object. Three-dimensional stereoscopic display technology aims at the binocular parallax of the human eyes and provides two images with parallax for its left and right eyes. The brain restores the three-dimensional depth information of the scene based on the parallax images obtained by the visual center, thereby generating stereoscopic vision. Therefore, a sense of three-dimensionality can be created by means of a two-dimensional plane display terminal. Figure 1 Approximately restores the general process of the formation of human binocular stereoscopic vision.

[0003] According to different implementation principles, three-dimensional stereoscopic display technology is mainly divided into polarization-based split-screen stereoscopic display technology, wavelength-based color separation stereoscopic display technology, and time-sharing stereoscopic display technology based on time sequence.

[0004] The split-screen stereoscopic display technology utilizes the polarization characteristics of light. As Figure 2 shown, polarizing films with polarization directions one and two are respectively installed in front of the odd-numbered columns and even-numbered columns of the display terminal. The polarization directions one and two are perpendicular to each other, and the polarizing films are used to transmit image information with polarization information. The polarization lenses of the left and right eyes of the viewing point are polarization directions one and two respectively. If the polarization directions of the polarizing film in front of the display terminal and the polarization film of the glasses are the same, the light can pass through smoothly; if the two polarization directions are perpendicular, the light cannot pass through the polarization film of the glasses. Thus, the left and right eyes respectively obtain images with parallax, generating stereoscopic vision.

[0005] The color separation stereoscopic display technology utilizes the wavelength color separation principle. There are a total of 4 types of light-sensitive cells in the human eye, among which the cells with the largest number are those that sense brightness, and the other three are used to perceive colors and can respectively perceive light with three wavelengths of red, green, and blue. The color information of any pixel in the image can be represented by a set of RGB values, that is, all colors in the image are mixed by the three primary colors of red, green, and blue in different proportions. The red information of the left-eye image and the cyan (a mixed color of green and blue) information of the right-eye image are combined into an image with left and right eye information. As Figure 3 shown, in the two sets of color filter lenses provided for the viewing point, the red lens of the left eye can only filter red and weaken the cyan information in the picture, and the cyan lens of the right eye can only filter cyan and weaken the red information in the picture. The left and right eyes of the viewing point respectively obtain left and right eye images with parallax through the color filter lenses, generating stereoscopic vision.

[0006] In the time-sharing stereoscopic display technology, the display terminal quickly alternates between the left-eye and right-eye images, as Figure 4As shown in the figure, since the alternating time between the left and right eye images is extremely short, and the shutter switch time of the left and right eye glasses is also extremely short, the left and right eyes will not feel the opening and closing of the glasses shutter. However, the left and right eyes of the viewing point can respectively obtain the left and right eye images with parallax, generating a stereoscopic vision.

[0007] The stereoscopic display technology solutions provided by the prior art usually have one display terminal corresponding to one viewing point. When multiple observers observe the same screen, they get the same stereoscopic picture of the same viewing point. Each observer cannot independently control the viewing point position of the stereoscopic picture they observe. Summary of the Invention

[0008] Aiming at the deficiencies of the prior art, the present invention proposes a same-screen stereoscopic display method and device with multiple independent viewing points. The stereoscopic image information to be played to multiple independent viewing points is encoded and encapsulated in different ways, and then independently split according to the corresponding encoding methods, so that multiple independent viewing points can obtain their own independent and different stereoscopic images on the same playback screen. It solves the problem that the prior art of same-screen stereoscopic display cannot achieve independent observation of multiple viewing points, and minimizes the interference between observers to the greatest extent.

[0009] A same-screen stereoscopic display method with multiple independent viewing points realizes the display requirements of n independent viewing point pictures through the following steps:

[0010] Step 1: Group the image sequence in groups with a duration of n moments. One moment contains a pair of L and R images, which respectively correspond to the left and right eye images that an independent viewing point needs to view.

[0011] Step 2: In the image spatial domain, encapsulate a pair of L and R images into a complete image with both left and right eye image information for display on the display terminal.

[0012] When using the polarization splitting stereoscopic display method for encapsulation: Install a polarizer with polarization direction one in front of the odd-numbered columns of the display terminal, and install a polarizer with polarization direction two in front of the even-numbered columns. The polarization direction one and the polarization direction two are perpendicular to each other, and the polarizer is used to transmit the image information with polarization information; the left and right eye images of an independent viewing point are respectively encapsulated in the odd-numbered and even-numbered columns of a complete stereoscopic image matrix with both left and right eye image information, that is, the odd-numbered columns of the stereoscopic image matrix correspond to the left eye image information, and the even-numbered columns correspond to the right eye image information. Repeat this process for the image information of other viewing points. Encapsulate the image information of n independent viewing points processed into a video sequence data packet and establish a corresponding index table, and send the encapsulated data packet to the display terminal.

[0013] When using the color separation stereoscopic display method for encapsulation: The left and right eye images of an independent viewing point are processed in the red channel and the blue-green channel respectively. The processing result of the red channel of the left eye image and the processing result of the blue-green channel of the right eye image are combined and encapsulated into a complete image with both left and right eye image information. Repeat this process for the image information of other viewing points. The image information of n independent viewing points after processing is encapsulated into a video sequence data packet and a corresponding index table is established, and the encapsulated data packet is sent to the display terminal.

[0014] Step 3: Transmit data at a certain frame rate in the time domain of the image sequence, and parse the received data according to the corresponding rules.

[0015] The display terminal displays the image processed in Step 2 in sequence, and controls the shutters of different stereoscopic glasses according to the index table information. Since the corresponding image needs to be provided to the corresponding viewing point, it is required to open the left and right lens shutters of the stereoscopic glasses of this viewing point only when playing the image that the corresponding viewing point needs to view, and the left and right lens shutters are closed at other times. That is, for a group of viewing points, when time-sharing, only the shutter of 1 viewing point is opened at the same time.

[0016] Step 4: Split the L and R images at the stereoscopic glasses end in the image spatial domain.

[0017] When using the polarization splitting stereoscopic display technology: Provide n pairs of stereoscopic glasses for n independent viewing points. The left polarization lens of each pair of glasses has polarization direction one, and the right polarization lens has polarization direction two. Since polarization films with polarization direction one and polarization direction two are respectively installed on the odd and even columns of the display terminal, the odd and even column information in the encapsulated image is the left and right eye image information of the viewing point respectively. The left and right polarization lenses of the viewing point stereoscopic glasses are polarization direction one and polarization direction two respectively. Therefore, the display terminal uses the polarization films to transmit the image information with polarization information. The image information with polarization direction one and polarization direction two on the display terminal is separated and extracted through the polarization lenses and provided to the left and right eyes of the viewing point respectively, so that the left and right eyes of each viewing point can respectively obtain the corresponding image information, thereby realizing that each viewing point independently obtains its own stereoscopic image.

[0018] When using the color separation stereoscopic display technology: Provide n pairs of stereoscopic glasses for n independent viewing points. The left color filter lens of each pair of glasses is red, and the right color filter lens is cyan. Since the red and cyan information in the encapsulated image is the left and right eye image information of the viewing point respectively, and the left and right color filter lenses of the viewing point stereoscopic glasses are red and cyan respectively, the red and cyan image information on the display terminal is separated and extracted through the color filter glasses and provided to the left and right eyes of the viewing point respectively, so that the left and right eyes of each viewing point can respectively obtain the corresponding image information, thereby realizing that each viewing point independently obtains its own stereoscopic image.

[0019] A multi-independent-viewpoint on-screen stereoscopic display device includes a packaging module, a display module, and a splitting module.

[0020] The packaging module groups the 2n images into groups with a duration of n moments for the image sequence. One moment contains a pair of images, and each pair of images corresponds to the images that the left and right eyes of 1 independent viewpoint need to view. When using the polarization beam splitting stereoscopic display method for packaging: A polarizer with polarization direction one is installed in front of the odd-numbered columns of the display terminal, and a polarizer with polarization direction two is installed in front of the even-numbered columns. The polarization direction one and the polarization direction two are perpendicular to each other, and the polarizer is used to transmit the image information with polarization information; the odd and even columns of the left and right eye images of each independent viewpoint can be separated, and the odd-column information of the left eye (or right eye) image and the even-column information of the right eye (or left eye) image are combined and packaged into a complete image with two kinds of image information. Repeat this process for other image information. Package the image information of the n independent viewpoints after processing into a video sequence data packet and establish a corresponding index table, and send the packaged video sequence data packet to the display terminal. When using the color separation stereoscopic display method for packaging: Separate the red information and cyan (complementary color of red) information of the left and right eye images of each independent viewpoint, and combine the red information of the left eye (or right eye) image and the cyan information of the right eye (or left eye) image into a complete image with two kinds of image information. Repeat this process for other image information. Package the image information of the n independent viewpoints after processing into a video sequence data packet and establish a corresponding index table, and send the packaged video sequence data packet to the display terminal.

[0021] The display module transmits data at a certain frame rate in the time domain of the image sequence; parses the corresponding data according to the corresponding rules. The display terminal sequentially displays the images after packaging processing according to the video sequence data packet after packaging.

[0022] Preferably, the refresh rate of the display module is not less than n * 60 hz.

[0023] In the splitting module, the display terminal correctly splits the video sequence data packet into n groups of images through time-sharing display technology, and then splits the left and right eye images of each group through polarization beam splitting stereoscopic display technology (or color separation stereoscopic display technology), so that the left and right eyes of each viewpoint respectively obtain the corresponding image information, thereby realizing that each viewpoint independently obtains its own stereoscopic image. That is, the display terminal controls the opening and closing of the shutter of the glasses according to the information in the index table, and at the same time, through the polarizer (or color separation lens), the left and right eyes of different viewpoints respectively obtain their corresponding image information, so that each viewpoint independently obtains its own stereoscopic image. The hardware configuration situation of splitting under different schemes can refer to the stereoscopic display configuration index table.

[0024] The present invention has the following beneficial effects:

[0025] 1. Combine the time - sharing stereoscopic display technology with the spectroscopic stereoscopic display technology (or color - separation stereoscopic display technology), encapsulate the information of different viewpoints onto the same screen and split it to the corresponding viewpoints, providing a stereoscopic display technology solution for multiple independent viewpoints to independently obtain their respective stereoscopic images on the same screen.

[0026] 2. The information between different viewpoints is independent of each other. When multiple independent viewpoints obtain the corresponding information on the same screen, they will not be interfered by the information of other viewpoints, enabling multiple viewpoints to independently obtain their corresponding stereoscopic images through the same screen, reducing the number of screens and lowering the venue cost.

[0027] 4. It can provide completely independent stereoscopic images corresponding to multiple moving viewpoints, and the viewing angles and viewing contents of each viewpoint are not affected by the movement of other viewpoints.

[0028] One of the most direct applications is that multiple users can enter the same virtual scene together on the same display screen and have their own independent viewpoints, enabling them to collaborate in the same scene. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the principle of stereoscopic vision formation;

[0030] Figure 2 is the schematic diagram of the spectroscopic stereoscopic display technology;

[0031] Figure 3 is the schematic diagram of the color - separation stereoscopic display technology;

[0032] Figure 4 is the schematic diagram of the time - sharing stereoscopic display technology;

[0033] Figure 5 is the flowchart of the same - screen stereoscopic display method for independent viewpoints;

[0034] Figure 6 is the schematic diagram of the encapsulation module in the embodiment;

[0035] Figure 7 is the schematic diagram of the splitting module in the embodiment;

[0036] Figure 8 is the time - sharing and color - separation stereoscopic display scheme for three independent viewpoints in Embodiment 1;

[0037] Figure 9 is the time - sharing and spectroscopic stereoscopic display scheme for three independent viewpoints in Embodiment 2;

[0038] Figure 10 is the time - sharing and spectroscopic stereoscopic display scheme for multiple independent viewpoints in Embodiment 3;

[0039] Figure 11For the time-division light splitting or time-division color separation stereoscopic display scheme of two independent viewpoints in Embodiments 4 and 5;

[0040] Figure 12 For the time-division light splitting image encapsulation scheme of two independent viewpoints in Embodiment 5;

[0041] Figure 13 For the time-division light splitting image splitting scheme of two independent viewpoints in Embodiment 5. Detailed implementation manners

[0042] The present invention will be further explained below with reference to the accompanying drawings.

[0043] Since the key to obtaining a stereoscopic effect in three-dimensional stereoscopic display technology is to provide two images with parallax for the left and right eyes, when n independent viewpoints need to obtain stereoscopic images, n sets of left and right eye images need to be provided. A multi-independent viewpoint on-screen stereoscopic display method proposed in this application encapsulates these 2n images, and then sends the encapsulated image information to a display terminal. The display terminal receives these n sets of left and right eye images in sequence, and correctly splits them into n sets of images through time-division stereoscopic display technology, and then splits the left and right eye images of each set through light-splitting stereoscopic display technology (or color-separation stereoscopic display technology), so that the left and right eyes of different viewpoints respectively obtain corresponding image information, so that each viewpoint independently obtains the left and right eye images corresponding to its own stereoscopic image, generating a stereoscopic effect, as Figure 5 shown.

[0044] The device for implementing this method includes an encapsulation module, a timing sending module, a display module, and a splitting module.

[0045] Figure 6 It is a schematic diagram of the encapsulation module. When n independent viewpoints need to obtain stereoscopic images, since the stereoscopic image of a single viewpoint consists of two images, L and R, n sets of L and R images need to be provided. Use U i to represent the stereoscopic image of viewpoint i, and use L i , R iIndicate the left and right eye images of viewpoint i. The encapsulation module groups the 2n images into groups with a duration of n moments for the image sequence. One moment contains a pair of images, and each pair of images corresponds to the images that the left and right eyes of 1 independent viewpoint need to view. When using polarized beam splitting stereoscopic display technology: First, the resolution of the image should be the same as that of the screen; Second, usually, different polarizers are set for odd and even columns on the display screen, and the images are also encapsulated according to odd and even columns (split according to odd and even columns during splitting). That is, polarizers with polarization direction one and polarization direction two are installed in front of the odd and even columns of the display terminal respectively, and polarization direction one and polarization direction two are perpendicular to each other, using the polarizer to transmit image information with polarization information; Separate the odd and even column information of the left and right eye images of each viewpoint, and combine the odd column information of the left eye (or right eye) image and the even column information of the right eye (or left eye) image into an image with two types of information. Repeat this process for the image information of other viewpoints. Encapsulate the processed image information of n independent viewpoints into a video sequence data packet and establish a corresponding index table (Table 1), and send the encapsulated data packet to the display terminal. When using dichroic stereoscopic display for encapsulation: Separate the red information and cyan (complementary color of red) information of the left and right eye images of each viewpoint, and combine the red information of the left eye (or right eye) image and the cyan information of the right eye (or left eye) image into an image with two types of information. Repeat this process for the image information of other viewpoints. Encapsulate the processed image information of n independent viewpoints into a video sequence data packet and establish a corresponding index table (Table 1), and send the encapsulated data packet to the display terminal.

[0046] Figure 7 It is a schematic diagram of the splitting module. The splitting module decomposes the n groups of images in a data packet into n images in sequence, that is, the images played at time T1 to T n moment, and then use the beam splitting (or dichroic) stereoscopic display technology to transmit the images of each time period to the specified stereoscopic display terminal. Control the opening and closing of the shutter of the stereoscopic glasses according to the stereoscopic display configuration index table recorded in Table 1, and at the same time, through the polarizer (or dichroic lens), the left and right eyes of different viewpoints respectively obtain their corresponding image information, so that each viewpoint independently obtains a stereoscopic image.

[0047] Due to the differences in display terminals, for the encapsulation and splitting methods of the L and R images of each independent viewpoint under different software and hardware conditions, they can be queried from the stereoscopic display configuration index table shown in Table 1:

[0048]

[0049] Table 1

[0050] For example, according to the information in Table 1, it can be known that the data packet in Scheme 2 <l1l2> , <r2r1>It means that the odd-column information (or red information) of the image at time T1 corresponds to the left-eye image information of view point 1, and the even-column information (or cyan information) corresponds to the left-eye image information of view point 2; the odd-column information (or red information) of the image at time T2 corresponds to the right-eye information of view point 2, and the even-column information (or cyan information) corresponds to the right-eye information of view point 1. That is, at time T1, the left lens shutters of view points 1 and 2 are opened, and the right lens shutters are closed; at time T2, the right lens shutters of view points 1 and 2 are opened, and the left lens shutters are closed. When using polarization beam splitting stereoscopic display technology, the left and right polarization lenses of view point 1 are polarization directions one and two respectively, and the left and right polarization lenses of view point 2 are polarization directions two and one respectively; when using color separation stereoscopic display technology, the left and right color filter lenses of view point 1 are red and cyan respectively, and the left and right color filter lenses of view point 2 are cyan and red respectively.

[0051] Table 2 shows the solution tables for different numbers of independent view points:

[0052]

[0053] Table 2

[0054] In the table, <> represents a frame or a time period, [] represents a data packet after encapsulating 1 group of images, and []1, []2, []3 represent data packets obtained by encapsulating according to different solutions. For example <l1r1> , <l2r2>1 represents a data packet obtained by encapsulation through the following steps when the number of independent viewpoints is 2: separating and combining the information of two images L1 and R1 into <t1>Images at a moment, separate and combine the information of the two images L2 and R2 into <t2>The image at the moment, will <t1> 、 <t2>The images at these two consecutive moments are encapsulated and integrated into a data packet. Among them, L1 and R1 are the left and right eye images provided to the first independent view point respectively, and L2 and R2 are the left and right eye images provided to the second independent view point respectively.

[0055] Embodiment 1

[0056] Taking the stereoscopic display scheme based on time-sharing and color separation as an example, the specific steps of a multi-independent view point on-screen stereoscopic display method in the case of 3 independent view points are introduced as follows:

[0057] To obtain a better viewing experience, the refresh rate of each independent view point should be no less than 60 hz. Then, in the case of 3 independent view points, the refresh rate of the display terminal should be no less than 180 hz.

[0058] As Figure 8 shown, first, the data at 3 consecutive moments in the content to be played is taken as a group. The images corresponding to each moment are the stereoscopic images of the 1st to 3rd independent view points respectively. The red light information of the left eye image and the cyan light information of the right eye image of the 1st view point are combined into an image with both left and right eye information, and the other view point images are processed in the same way. The processed image data is encapsulated into a video sequence data packet in a certain time sequence. The above processing method is repeated for the subsequent content to be played.

[0059] The display terminal receives the data packet and sequentially displays the encapsulated and processed images in time sequence. Stereoscopic glasses are provided for the 3 independent view points respectively. The left eye color filter lens of each pair of glasses is a red lens, and the right eye color filter lens is a cyan lens. The lens shutters of the stereoscopic glasses for the 1st independent view point are opened at moments T1, T4, T7... The lens shutters of the stereoscopic glasses for the 2nd independent view point are opened at moments T2, T5, T8... The lens shutters of the stereoscopic glasses for the 3rd independent view point are opened at moments T3, T6, T9... That is, at any moment, only one stereoscopic glasses shutter is opened.

[0060] Embodiment 2

[0061] Taking the stereoscopic display scheme based on time-sharing and light splitting as an example, the specific steps of a multi-independent view point on-screen stereoscopic display method in the case of 3 independent view points are introduced as follows:

[0062] Polarizing films with polarization direction one and polarization direction two are respectively installed in front of the odd-numbered columns and even-numbered columns of the display terminal. Polarization direction one and polarization direction two are perpendicular to each other.

[0063] As Figure 9 As shown in the figure, first, the data of three consecutive moments in the content to be played are taken as a group. The images corresponding to each moment are the stereoscopic images of the 1st to 3rd independent viewpoints respectively. The odd columns of the left-eye image of the 1st viewpoint and the even columns of the right-eye image are combined into an image with both left-eye and right-eye information. The same method is applied to other viewpoint images. The processed image data are encapsulated into a video sequence data packet in a certain time sequence. The above processing method is repeated for the subsequent playing content.

[0064] The display terminal receives the data packet and sequentially displays the encapsulated and processed images in time sequence. Stereoscopic glasses are provided for each of the three independent viewpoints. The left and right polarization lenses of each pair of glasses have polarization directions 1 and 2 respectively. The lens shutters of the stereoscopic glasses of the 1st independent viewpoint are opened at moments T1, T4, T7... The lens shutters of the stereoscopic glasses of the 2nd independent viewpoint are opened at moments T2, T5, T8... The lens shutters of the stereoscopic glasses of the 3rd independent viewpoint are opened at moments T3, T6, T9... That is, at any moment, only the shutter of one pair of stereoscopic glasses is opened.

[0065] Embodiment 3

[0066] Taking the stereoscopic display scheme based on the combination of time division and light splitting as an example, the specific steps of a method for simultaneous screen stereoscopic display with multiple independent viewpoints in the case of n independent viewpoints are introduced as follows:

[0067] To obtain a better viewing experience, the refresh rate of the display terminal should be not less than n * 60 hz. Therefore, the number n of independent viewpoints is limited by the hardware performance of the display terminal.

[0068] Polarizing films with polarization directions 1 and 2 are respectively installed in front of the odd columns and even columns of the display terminal, and the polarization direction 1 and the polarization direction 2 are perpendicular to each other.

[0069] As Figure 10 shown in the figure, first, the data of n consecutive moments in the content to be played are taken as a group. The images corresponding to each moment are the stereoscopic images of the 1st to nth independent viewpoints respectively. The odd columns of the left-eye image of the 1st viewpoint and the even columns of the right-eye image are combined into an image with two kinds of information. The same method is applied to other viewpoint images. The processed image data are encapsulated into a video sequence data packet in a certain time sequence. The above processing method is repeated for the subsequent playing content.

[0070] The display terminal receives the data packet and sequentially displays the encapsulated and processed images in time sequence. Stereoscopic glasses are provided for each of the n independent viewpoints. The left lens of each pair of glasses is installed with a polarizing film with polarization direction 1, and the right lens is installed with a polarizing film with polarization direction 2. The lens shutters of the stereoscopic glasses of the 1st independent viewpoint are at T1, T n+1 、T 2n+1 ... is opened at moment T1, and the lens shutters of the stereoscopic glasses of the second independent view point are opened at T2, T n+2 , T 2n+2 ... and so on. At any moment, only the shutter of one pair of stereoscopic glasses is opened.

[0071] Embodiment 4

[0072] Taking the stereoscopic display solution based on time division combined with light splitting / color separation as an example, the specific steps of a same-screen stereoscopic display method for multiple independent view points in the case of 2 independent view points are introduced as follows:

[0073] As shown in Figure 11 , the steps (1) and (3) are similar to those in Embodiments 1 to 3, which are to provide the same stereoscopic glasses for the independent view points, and to realize the stereoscopic display of multiple independent view points by controlling the simultaneous opening or closing of the left and right lens shutters of the stereoscopic glasses at different times.

[0074] Embodiment 5

[0075] Taking the stereoscopic display solution based on time division combined with light splitting / color separation as an example, the specific steps of a same-screen stereoscopic display method for multiple independent view points in the case of 2 independent view points are introduced as follows:

[0076] As shown in Figure 11 , where (2) and (4) show that on the basis of the image light splitting / color separation in Embodiments 1 to 3, different stereoscopic glasses are provided for the two independent view points respectively. The left lens of the stereoscopic glasses of the first independent view point and the right lens of the stereoscopic glasses of the second independent view point are polarized in direction 1 / red, while the right lens of the stereoscopic glasses of the first independent view point and the left lens of the stereoscopic glasses of the second independent view point are polarized in direction 2 / cyan.

[0077] Figure 12 It is a packaging schematic diagram based on time division combined with light splitting. A polarizer with polarization direction 1 is installed in front of the odd-numbered columns of the display terminal, and a polarizer with polarization direction 2 is installed in front of the even-numbered columns. The polarization direction 1 and the polarization direction 2 are perpendicular to each other, and the polarizer is used to transmit the image information with polarization information; the odd and even columns of the left and right eye images of the view point are separated, and the odd-column information of the left eye (or right eye) image and the even-column information of the right eye (or left eye) image are combined and packaged into an image with two kinds of information.

[0078] Figure 13 It is the corresponding splitting schematic diagram. At time T1, since the shutter of the left lens of the first independent viewing point is opened, the polarization direction of the lens is consistent with the polarization direction of the polarizer of the odd-numbered columns of the display terminal and perpendicular to the polarization direction of the polarizer of the even-numbered columns. Also, the shutter of the right lens is closed. Therefore, only the left eye of the first independent viewing point obtains the image information on the odd-numbered columns of the display terminal. At the same time, the shutter of the left lens of the second independent viewing point is opened, the polarization direction of the lens is consistent with the polarization direction of the polarizer of the even-numbered columns of the display terminal and perpendicular to the polarization direction of the polarizer of the odd-numbered columns. Also, the shutter of the right lens is closed. Therefore, only the left eye of the second independent viewing point obtains the information on the even-numbered columns of the display terminal. Similarly, at time T2, only the right eye of the first independent viewing point obtains the information on the even-numbered columns of the display terminal, and only the right eye of the second independent viewing point obtains the information on the odd-numbered columns of the display terminal. Therefore, the left and right eyes of each viewing point can obtain image information with parallax, synthesize a stereoscopic image in the brain's visual center to form stereoscopic vision, and each independent viewing point does not affect each other. < / t1> < / l1r1> < / l1l2>

Claims

1. A method for stereoscopic display on the same screen with multiple independent viewpoints, characterized in that: The display requirements for n independent viewpoint images are achieved through the following steps: Step 1: Group the image sequence in groups with a duration of n moments. One moment contains a pair of L and R images, which respectively correspond to the left and right eye images that need to be viewed for an independent viewpoint. Step 2: In the image spatial domain, based on polarization beam splitting stereoscopic display or color separation stereoscopic display technology, encapsulate a pair of L and R images into a complete image with both left and right eye image information, and establish a corresponding index table. Send the encapsulated data packet to the display terminal. Step 3: In the time domain of the image sequence, transmit data at a certain frame rate. At the display terminal, display the images processed in Step 2 in sequence, and control the shutters of different stereoscopic glasses according to the index table information. It is required that only when playing the images that need to be viewed for the corresponding viewpoint, open the left and right lens shutters of the stereoscopic glasses for that viewpoint, and close the left and right lens shutters at other times. Step 4: According to the encapsulation method in Step 2, split the L and R images at the stereoscopic glasses end in the image spatial domain.

2. The method for realizing a multi-independent viewpoint on-screen stereoscopic display according to claim 1, characterized in that: When using polarization beam splitting stereoscopic display for encapsulation: Install a polarizer with polarization direction one in front of the odd-numbered columns at the display terminal, and install a polarizer with polarization direction two in front of the even-numbered columns, and polarization direction one and polarization direction two are perpendicular to each other. Encode the left and right eye images of an independent viewpoint into the odd-numbered and even-numbered columns of a complete stereoscopic image matrix with both left and right eye image information respectively, where the odd-numbered columns of the stereoscopic image matrix correspond to the left eye image information, and the even-numbered columns correspond to the right eye image information. Encode the image information of the n independent viewpoints after processing into a video sequence data packet and establish a corresponding index table. During the splitting process: Provide n pairs of stereoscopic glasses for the n independent viewpoints. The left eye polarizing lens of each pair of glasses is polarization direction one, and the right eye polarizing lens is polarization direction two.

3. The method for stereoscopic display on the same screen with multiple independent viewpoints according to claim 1, characterized in that: When using color separation stereoscopic display for encapsulation: Process the left and right eye images of an independent viewpoint in the red channel and the blue-green channel respectively, and combine and encapsulate the processing result of the red channel of the left eye image and the processing result of the blue-green channel of the right eye image into a complete image with both left and right eye image information. Encode the image information of the n independent viewpoints after processing into a video sequence data packet and establish a corresponding index table. During the splitting process: Provide n pairs of stereoscopic glasses for the n independent viewpoints. The left eye color filter lens of each pair of glasses is red, and the right eye color filter lens is cyan.

4. A same-screen stereoscopic display device with multiple independent viewpoints, characterized in that: A method for realizing the same-screen stereoscopic display of multiple independent viewpoints according to any one of claims 1 to 3 includes an encapsulation module, a display module, and a splitting module.

5. The multi-independent viewpoint on-screen stereoscopic display device according to claim 4, wherein: The encapsulation module groups the 2n images into groups for the image sequence with a duration of n time instants. One time instant contains a pair of images, and each pair of images corresponds to the images that the left and right eyes of 1 independent viewpoint need to view. A polarizer with polarization direction one is installed in front of the odd columns of the display terminal, and a polarizer with polarization direction two is installed in front of the even columns. The polarization direction one and the polarization direction two are perpendicular to each other. The odd-column information of the left-eye image and the even-column information of the right-eye image are combined and encapsulated into a complete image with two types of image information. The processed image information of n independent viewpoints is encapsulated into a video sequence data packet and a corresponding index table is established, and the encapsulated video sequence data packet is sent to the display terminal.

6. The multi-independent-viewpoint on-screen stereoscopic display device according to claim 4, characterized in that: The encapsulation module groups the 2n images into groups for the image sequence with a duration of n time instants. One time instant contains a pair of images, and each pair of images corresponds to the images that the left and right eyes of 1 independent viewpoint need to view. The red information and cyan information of the left and right eye images of each independent viewpoint are separated, and the red information of the left-eye image and the cyan information of the right-eye image are combined and encapsulated into a complete image with two types of image information. The processed image information of n independent viewpoints is encapsulated into a video sequence data packet and a corresponding index table is established, and the encapsulated video sequence data packet is sent to the display terminal.

7. The multi-independent viewpoint on-screen stereoscopic display device according to claim 4, wherein: In the time domain of the image sequence, the display module correctly splits the video sequence data packet into n groups of images through time-sharing display technology for the encapsulated video sequence data packet, and controls the opening and closing of the glasses shutter according to the information in the index table, so that each viewpoint independently obtains its own different left and right eye images and forms its own independent stereoscopic vision. According to the encapsulation rule, the splitting module splits the left and right eye images of each group of images, so that the left and right eyes of different viewpoints respectively obtain the corresponding image information. The left and right eye images obtained by splitting each group of images are not limited to being only used for the same viewpoint. If the encapsulation rule corresponding on the index table indicates that the L and R images respectively correspond to different viewpoints, the corresponding glasses shutters of different viewpoints will be opened and closed according to the information in the index table, so that each viewpoint accurately obtains its own L and R images.

8. The multi-independent viewpoint on-screen stereoscopic display device according to claim 7, wherein: The refresh rate of the display module is not less than n * 60 hz.

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