CN114994939B - Method and device for realizing 3D display by using 2D display screen - Google Patents
Method and device for realizing 3D display by using 2D display screen Download PDFInfo
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/23—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using wavelength separation, e.g. using anaglyph techniques
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
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Abstract
The invention relates to a method and a device for realizing 3D display by using a 2D display screen, comprising the following steps: arranging a staggered grid film on the surface of the display screen; and displaying a composite image formed by interlacing the left and right eye source images on a display screen. The staggered grid film is provided with a plurality of transparent grids in a staggered mode, namely a first transparent grid and a plurality of second transparent grids, and the first transparent grid and the second transparent grids are arranged in a staggered mode in the horizontal direction and the vertical direction. The method and the device can change the 2D screen into the 3D screen in a film pasting mode no matter what the size of the 2D screen is, such as a television screen, a flat panel screen, a mobile phone screen and the like, so that the 2D-to-3D display screen is transformed at low cost. In addition, the grids which are arranged in a staggered mode can realize free switching between the vertical screen and the horizontal screen, and the 3D stereoscopic effect display and watching can be realized through the device provided by the invention no matter the vertical screen or the horizontal screen is rotated.
Description
Technical Field
The invention relates to the field of 3D image display, in particular to a method and a device for realizing 3D display by using a 2D display screen.
Background
The 3D display technology is a novel display technology, and compared with the common 2D picture display, the 3D technology can make the picture become three-dimensional vivid, and the image is no longer limited on the plane of the screen, so that the image appears to be capable of going out of the screen, and audiences have a feeling of being personally on the scene. Currently, 3D display of polarized light is strongly demanded, and currently, a dedicated 3D display screen or a 2 light source projection mode is generally adopted. The price is generally expensive, and the equipment is difficult to quickly restore to a common 2D screen.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a method and an apparatus for displaying 3D images on a 2D display at low cost, which generates a 3D stereoscopic effect by overlapping images based on left and right eyes using a cross-grid-shaped film. By using the grid-shaped adhesive film, a common 2D display screen can be quickly reformed into a 3D display screen.
The technical scheme of the invention is as follows: a method for realizing 3D display by using a 2D display screen comprises the following steps:
inputting a synthetic image formed by interlacing and synthesizing a left-eye source image and a right-eye source image into a 2D display screen, wherein the synthetic image is obtained by interlacing and synthesizing the left-eye source image and the right-eye source image after the left-eye source image and the right-eye source image are shifted for a preset distance in a preset direction;
a staggered grid film is detachably arranged on the surface of the display screen, and the staggered grid film corresponds to the combined image formed by the staggered synthesis; the staggered grid film is provided with a plurality of transparent grids in a staggered mode, and the transparent grids comprise a plurality of first transparent grids and a plurality of second transparent grids, wherein the first transparent grids and the second transparent grids are arranged in a staggered mode in the horizontal direction and the vertical direction at the same time, and the first transparent grids and the second transparent grids are respectively used for transmitting image blocks representing left eye areas and right eye areas in a staggered composite image;
displaying a preset picture display area on the display screen, displaying an alignment adjustment interface, and adjusting the picture display area based on the relationship between the position of the staggered grid film and the picture display area;
displaying a composite image formed by interlacing left and right eye source images in a picture display area on a display screen;
the user wears 3D glasses corresponding to the staggered grid film type to view the composite image displayed through the staggered grid film.
According to another aspect of the present invention, an apparatus for implementing 3D display using a 2D display screen is provided, including:
a 2D display screen, and,
the staggered grid film is arranged on the surface of the display screen;
the interlaced grid overlay corresponds to the interlaced composite image; the staggered grid film is provided with a plurality of transparent grids in a staggered mode, and the transparent grids comprise a plurality of first transparent grids and a plurality of second transparent grids, wherein the first transparent grids and the second transparent grids are arranged in a staggered mode in the horizontal direction and the vertical direction at the same time, and the first transparent grids and the second transparent grids are respectively used for transmitting image blocks representing left eye areas and right eye areas in a staggered composite image;
the display screen is used for displaying a synthetic image formed by the left-eye source image and the right-eye source image in an interlaced mode; the display screen is used for displaying a composite image formed by the left-eye source image and the right-eye source image in an interlaced mode;
and displaying a preset picture display area on the display screen, displaying an alignment adjustment interface, and adjusting the composite image in the picture display area based on the relationship between the position of the staggered grid film and the picture display area so that the transparent grating of the staggered grid film is aligned with the staggered blocks of the composite image.
Further, the display screen can also be a 3D display screen, but it is used as a 2D display screen;
advantageous effects
The method and the device for realizing 3D display by using the 2D display screen have the following advantages:
1. no matter the various sizes of 2D display screen, such as TV screen, flat screen, cell-phone screen, etc. all can become to 3D display screen through the mode of "pad pasting" to low-cost 2D to 3D display screen transformation has been realized.
2. According to the invention, through the grids arranged in a staggered manner, free switching between the vertical screen and the horizontal screen can be realized, and display and watching of a 3D (three-dimensional) effect can be realized through the device provided by the invention no matter the vertical screen or the horizontal screen is rotated.
3. The device is convenient to use, can be conveniently converted between the 2D display screen and the 3D display screen, can remove the sticking film when 3D display is not needed, and can be recovered to the 2D display screen, so that the device is very convenient to use.
Drawings
FIG. 1: the invention discloses a device for realizing 3D display by using a 2D display screen;
FIG. 2: the invention discloses a schematic diagram of a staggered grid film;
FIG. 3: the invention is a schematic diagram of a staggered composite diagram principle;
FIG. 4: a schematic diagram of a strip-shaped stop block is arranged in the staggered composite image;
FIG. 5: the invention discloses a flow chart of a method for realizing 3D display by utilizing a 2D display screen;
FIG. 6: the device structure schematic diagram of the invention which realizes 3D display by using a 2D display screen is shown in another embodiment;
FIG. 7 is a schematic view of: the invention relates to a picture correction display interface;
FIG. 8: the invention discloses a schematic diagram of a film sticking inclination and picture correction process;
FIG. 9: the picture correction process of the invention is schematically shown.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
According to an embodiment of the present invention, an apparatus for implementing 3D display using a 2D display screen is provided, including:
a 2D display screen, and,
the sticking film is arranged on the surface of the display screen and is a staggered grid sticking film or an interval grid sticking film;
the display screen is used for displaying a synthetic image formed by the left-eye source image and the right-eye source image in an interlaced mode or a synthetic image formed by interval synthesis.
As shown in fig. 1, the apparatus 100 includes: the display screen 101 is a display screen on an electronic device, such as a mobile phone, a television screen, a flat panel screen, a computer screen, and the like;
the display screen 101 is a 2D display screen. For example, various screens such as an LED screen or an OLED screen of an electronic device, or a touch screen, as long as images can be displayed, the present invention is not limited thereto, and the electronic device may be a notebook computer, a desktop computer, a mobile phone terminal, a television, and various household appliances, and displays provided thereon;
optionally, the display screen may also be a 3D display screen capable of displaying 2D images, and when the display screen uses a 2D image display function, the display screen is also applicable to the present invention;
the adhesive film 102 is detachably arranged on the surface of the display screen, for example, when the electronic screen is used, the adhesive film 102 can be clamped or clamped by a clamping device or pressed on the surface of the display screen 101, or the adhesive film 102 can be attached to the surface of the electronic screen 101 by an adhesive layer with adhesive force or glue; when the sticking film is not used, the fastening device is loosened, the sticking film is taken down, or the sticking film is taken off, so that the normal use of the display screen is not influenced;
the sticking film is a staggered grid sticking film or an interval grid sticking film;
according to the first embodiment of the present invention, the film is a staggered grid film, as shown in fig. 1-2, the staggered grid film is a planar shape, and includes longitudinal and transverse bar frames 107 thereon, and a plurality of transparent grids arranged between the bar frames, that is, a first transparent grid 103 and a plurality of second transparent grids 104, and the first transparent grid 103 and the second transparent grid 104 are simultaneously staggered in the horizontal and vertical directions. The width of the strip frame 107 of the film in the horizontal direction is e, the smaller the width is, the better the width is, the strip frame can be made of transparent or opaque materials, and a transparent grating is arranged and installed in a hollow hole formed in the middle of the strip frame; according to another embodiment of the invention, the transparent grids can be directly bonded in a staggered manner without adopting a film with a strip frame to be spliced into an integral film, but in this case, the strength of the film is weaker than that of the film with the strip frame; the width of the strip frame 107 of the film can be set to e or another value in the longitudinal direction;
as shown in fig. 1, the staggered arrangement means that the grids directly adjacent to the first transparent grid (black) 103 at the upper, lower, left, and right sides are all the second transparent grids (white) 104, and the grids directly adjacent to the second transparent grid at the upper, lower, left, and right sides are all the first transparent grids 103; it should be noted that for the grid of the present invention, if at the edge position, there may be only a partial grid of the adjacent grids, such as one or two of the upper, lower, left, and right grids, instead of four grids; referring to fig. 2, the first transmissive grating and the second transmissive grating are represented by hatching lines in different patterns, and are arranged in a staggered manner;
according to an embodiment of the present invention, the first light-transmitting grid is configured to transmit light with a first polarization direction, the second light-transmitting grid is configured to transmit light with a second polarization direction, and the first polarization direction and the second polarization direction are orthogonal to each other, such as perpendicular to each other, or opposite in rotation direction; alternatively, the first and second electrodes may be,
the first light-transmitting grid is used for transmitting light rays with a first color, the second light-transmitting grid is used for transmitting light rays with a second color direction, and the first color is different from the second color. Red and blue, red and green, blue and green and other matching modes can be adopted;
in the invention, the first light-transmitting grid and the second light-transmitting grid are respectively used for transmitting the images of the left-eye block and the right-eye block.
The transmission grating can be set to be square, the width can be set to be 1-3 mm, and the width of the grating frame can be set to be 1mm or less, such as 0.1mm; in this arrangement, the physical size of the pixels of the display screen is usually much smaller than the size of the grids, and therefore each grid may cover a plurality of pixels, for example, assuming that the pixel size of the display screen is 0.1mm wide, for a grid with a width of 1mm, the length direction covers 10 pixels; the grids are connected through grid strip frames; optionally, the grids can be connected in a manner of direct bonding, so that grid strip frames may not exist among the grids, and the light-transmitting area can be increased;
according to the present embodiment of the invention, the left-eye source image and the right-eye source image are the source image 201 from the left-eye viewing angle and the source image 202 from the right-eye viewing angle respectively.
As shown in fig. 3, a source image 201 of a left eye viewing angle and an image source 202 of a right eye viewing angle are interlaced and synthesized to obtain a synthesized image 203 of the present invention; in the invention, the synthetic image is obtained by firstly offsetting the left-eye source image and the right-eye source image in the preset direction for a preset distance and then carrying out staggered synthesis, and in the process of generating the staggered image, the left-eye source image and the right-eye source image are offset in the preset direction for a preset distance, so that pixels at the same position in a visual field cannot be lost after splicing treatment of the left-eye source image and the right-eye source image; the synthetic image formed by interlacing the left-eye source image and the right-eye source image comprises a plurality of interlaced blocks, as shown by black and white blocks (with black dots), which respectively represent image blocks of the left eye and the right eye; optionally, although the left-eye source image and the right-eye source image may not be obtained by first shifting the left-eye source image and the right-eye source image by a predetermined distance in a predetermined direction and then performing the interleaving synthesis, in this case, in the process of generating the interleaved image, after the left-eye source image and the right-eye source image are processed, pixels at the same position in the visual field are lost, that is, only the left eye or the right eye is retained, and the stereoscopic effect is deteriorated.
The composite image formed by the left-eye source image and the right-eye source image through interlacing synthesis comprises a plurality of interlaced blocks.
The interlaced blocks comprise a plurality of left-eye image blocks and right-eye image blocks, and the left-eye image blocks and the right-eye image blocks are arranged in a horizontal and vertical staggered mode at the same time.
Specifically, the image blocks directly adjacent to the left-eye image block in the upper, lower, left, and right directions are right-eye image blocks, and the image blocks directly adjacent to the right-eye image block in the upper, lower, left, and right directions are left-eye image blocks.
According to an embodiment of the present invention, as shown in fig. 3, a synthesized image 203 of the present invention is obtained by interleaving and synthesizing a source image 201 of a left-eye viewing angle and an image source 202 of a right-eye viewing angle, and specifically, the method includes the following steps:
step S21, receiving left and right eye source images which represent images shot or generated by the visual angles of the left and right eyes; after receiving the left-eye source image and the right-eye source image, the 2 source images are adjusted to be consistent with the pixel size of a display frame and overlapped and aligned, the display frame is an area when the composite image is displayed on a display screen, and the central point of the 2 source images can be consistent with the central point of the display frame when the composite image is displayed. In fig. 3, a left-eye source image 201 is shown, for example, as an image with a in the middle, and a right-eye source image 202 is shown, for example, as an image with B in the middle; the left-eye source image 201 may be sent to the electronic device through other devices, or may be stored in the electronic device;
step S22, in the step, the right side of the left-eye image is expanded to form one or more columns of blank pixels, wherein the blank pixels are pure white pixels with the pixel value of 255 or pure black pixels such as 0; as shown in fig. 3, optionally, the expanded width is equal to the number of pixels corresponding to one grid width s; for example, assuming that the width of one grid is 1mm, and 10 pixels correspond to each other on the display screen of the electronic device, the right side of the left-eye image is expanded by the column width of 10 pixels, and if the original left-eye source image is 1024 × 768, the expanded left-eye source image is 1034 × 768;
s23, shifting the right-eye source image by a preset distance in a preset direction;
in this embodiment, the left-eye source image and the right-eye source image are overlapped and aligned in step S21, in this step, the right-eye source image is shifted to the right by a pixel number corresponding to a grid width S, for example, 10 pixels, after the right shift, the left side of the right-eye source image and the left-eye source image are horizontally different by a distance S of a grid width, and the right-eye source image and the expanded left-eye source image are aligned on the right side in the image; in the embodiment, in the process of generating the interlaced image (the subsequent steps include the process of generating the interlaced image) by offsetting the left-eye source image and the right-eye source image in the predetermined direction by the predetermined distance, after the left-eye source image and the right-eye source image are processed, pixels at the same position in the visual field cannot be lost; if the processing is not carried out, pixels at the same positions in the visual fields of the left eye and the right eye can be lost after the staggered fusion processing of the following steps, namely, only the left eye or the right eye is reserved, and the stereoscopic vision effect is poor;
s24, respectively generating a left-eye source image and a right-eye source image which are shifted by a preset distance;
as shown in fig. 3, a left-eye source image and a right-eye source image are generated respectively in the expanded size, and the sizes at this time are all changed to the expanded size, for example, 1034 × 768, the right side of the left-eye source image includes a plurality of columns of blank pixels, and the left side of the right-eye source image includes a plurality of columns of blank pixels;
s25, processing the left-eye source image and the right-eye source image into screen images respectively;
in this embodiment, the invention gradually expands the original grid shape to the periphery according to the step pitch, and keeps the content of a block image every other step pitch, and so on to obtain the screen-shaped image for the left eye or the right eye, specifically as follows:
retaining a predetermined size shape image of a center point or an upper left point of the left-eye source image, the predetermined size shape having a size, shape that is consistent with the grid, or a predetermined percentage, e.g., 90%, of the grid size;
on the basis of the left-eye source image, starting from an upper left point or a central point, after the upper, lower, left and right peripheries expand the grid width step distance d, reserving a figure (such as a black block in the figure 3) with a preset size and shape, and processing all the left-eye source images until the processing reaches the image boundary, so that the processed image of the left-eye source image is obtained, and a screen-shaped image with uniform bit holes is formed, namely the screen-shaped left-eye source image; optionally, the predetermined size is square, rectangular, 6-sided, diamond-shaped, or circular, triangular, or irregular;
taking the upper left point as the start point or the center point of the left eye source image after the deviation of the preset distance as the start point, deducting the preset size shape image of the center point or the upper left point (i.e. not reserving, for example, a white block in fig. 3), reserving the image content of the preset size shape of the adjacent grids (e.g. an image block with black points in fig. 3 as a reserved block after deduction), then according to the grid width step pitch, after expanding the grid width step pitch at the upper, lower, left and right peripheries, deducting the preset size shape image content, and making a screen-shaped image with uniform bit holes, namely the screen-shaped right eye source image;
and S26, overlapping and aligning the obtained screen-shaped left-eye source image and the screen-shaped right-eye source image, splicing and fusing the two together to obtain a composite image 203 which is synthesized in a staggered mode, wherein black blocks represent image blocks of a left-eye visual angle, and white blocks with black dots represent image blocks of a right-eye visual angle.
Further, the pixel columns of the width of the rightmost part s of the size of the synthesized image 203 may be cut off to obtain an image size of 1024 × 768;
according to a preferred embodiment of the present invention, in order to provide better display effect, as shown in fig. 4, in the synthesized image 203, including the left-eye image blocks 301 and right-eye image blocks 302 which are arranged in an interlaced manner, it is important to provide a blocking bar block at the boundary between the left-eye image block and the right-eye image block, where the blocking bar block includes a longitudinal blocking bar block 303 and a transverse blocking bar block 304, and assuming that the width of the left-eye image block is d (this width d may be the same as the width s of the middle grid), and each left-eye image block or right-eye image block is square, the width of the blocking bar block may be set to be c, the masking ratio of c to d is set to be r, and r takes a value of 5/100:
namely:
r is usually greater than 1/20 and less than 1/4; in the process of generating the composite image, the mask ratio may be set in advance, and the occlusion band may be generated directly according to the set value when the composite image is generated.
Optionally, the width c may be the same as or different from the width e of the bar in the foregoing, but preferably, c is larger than e, so as to cover more defects.
The position of the strip frame of the staggered grid corresponds to the junction position of the left eye block and the right eye block, and the strip frame of the staggered grid can be partially skewed or burred, and the bonding is uneven due to the production process, so that the image at the junction of the left eye and the right eye cannot be completely aligned with the strip frame, and the visual effect is influenced; according to the invention, the shielding strip is arranged, so that the strip frame part of the staggered grid can be shielded and shielded, and the visual effect is improved; in addition, because crisscross grid pad pasting also can appear the condition of small dislocation when applying to the display screen surface, when the width of strip frame is very narrow, does not have under the condition of strip frame even, can lead to the image of left eye block to move the right eye of crisscross grid and pass through grating grid position, shelters from the strip through setting up the aforesaid, can avoid visual effect's dislocation, provides bigger redundancy simultaneously for the image alignment.
According to a practical embodiment of the present invention, in the above process, the left-eye source image, e.g. 1mm × 1mm square (the size and shape of which is identical to the grid pattern or slightly smaller, e.g. 90%) of the center point (or upper left point) is retained.
Diffusing the positions of 1mm grid step distance on the upper, lower, left and right peripheries, reserving the 1mm by 1mm square graph (or 6-edge, diamond, 2mm and the like), and re-expanding in such a way until the boundary is reached
Therefore, the left-eye source image is a screen image with uniform bit holes, only about half of the area of the whole image has the image, and the other half of the area is empty.
Meanwhile, the source image of the right eye is similarly subtracted from the square image of 1mm × 1mm at the center point, and then the image is made into a screen image according to the grid step pitch.
The screen images of the left and right holes are spliced together and just fill the canvas (1034 × 768), or about 10% of the space around each grid is displayed as black (the splicing seams between the grids are uneven and can be set to be not required to display the images, and the black blocks are shielding strips) and then the images are displayed in the canvas.
According to another embodiment of the present invention, alternatively, the interlaced composite image can also be realized by:
after the left-eye source image and the right-eye source image which are shifted by the preset distance are respectively generated in the step S24, the left-eye source image is cut into a plurality of square sub-blocks through horizontal and vertical lines, then the square sub-blocks of odd rows and odd columns of the left-eye source image are reserved, and the square sub-blocks of even rows and even columns are deleted;
cutting a right-eye source image into a plurality of square sub-blocks, then reserving the square sub-blocks of even rows and even columns of the right-eye source image, and deleting the square sub-blocks of odd rows and columns;
finally, splicing and synthesizing the two images into an image;
wherein, the horizontal and vertical most middle cutting line passes through the center points of the source images of the left and right eyes;
as above, the interlaced composite image is obtained, the subsequent display is possible, and when the user wears the 3D glasses to watch, the 3D visual effect can be generated;
specifically, when displaying, the composite image 203 is displayed on the electronic screen 101, and the plurality of interlaced blocks of the composite image correspond to the light-transmitting grids of the interlaced grid film, so that the image of the left-eye block is emitted through the first light-transmitting grid, the image of the right-eye block is emitted through the second light-transmitting grid,
the user wears 3D glasses corresponding to the staggered grid film pasting type, wherein the 3D glasses comprise polarized light 3D glasses, red and green 3D glasses or blue and green 3D glasses;
a user watches the displayed composite image through the staggered grid film by wearing 3D glasses corresponding to the staggered grid film, the left eye sees the image of the left eye block emitted through the first light-transmitting grid, namely the image of the left eye visual angle, and the right eye sees the image of the right eye block emitted through the second light-transmitting grid, namely the image corresponding to the right eye visual angle, so that the user can see a 3D stereo image;
according to a preferred embodiment of the present invention, when a user needs to rotate a screen, for example, from a vertical direction to a horizontal direction, because the present invention uses interlaced grids and interlaced synthesized images, the rotated screen can still achieve a stereoscopic effect, in this embodiment, when the screen is rotated, the screen is correspondingly rotated, and a first left eye image block at the upper left corner of the screen needs to be correspondingly aligned with a first light-transmitting grid of the interlaced grid; reference can be made to the following embodiment, in this case, the preset parameters can be called, so that the picture can be automatically adjusted after the display screen of the electronic device is rotated, the first left-eye image block at the upper left corner of the picture is aligned with the first light-transmitting grid of the staggered grid correspondingly, manual operation of a user is not needed, and the method is very convenient.
According to an embodiment of the present invention, based on the above apparatus, a method for implementing 3D display by using a 2D display screen is further provided, as shown in fig. 5, including the following steps:
inputting a synthetic image formed by interlacing a left-eye source image and a right-eye source image into a 2D display screen, wherein the synthetic image is obtained by firstly offsetting the left-eye source image and the right-eye source image in a preset direction by a preset distance and then interlacing and synthesizing;
a staggered grid film is detachably arranged on the surface of the display screen, and the staggered grid film corresponds to the combined image synthesized in a staggered mode; the staggered grid film is provided with a plurality of transparent grids in a staggered manner, and the transparent grids comprise a plurality of first transparent grids and a plurality of second transparent grids, wherein the first transparent grids and the second transparent grids are staggered in the horizontal direction and the vertical direction at the same time, and the first transparent grids and the second transparent grids are respectively used for transmitting image blocks representing left eye areas and right eye areas in a staggered composite image;
displaying a preset picture display area on the display screen, displaying an alignment adjustment interface, and adjusting the picture display area based on the relationship between the position of the staggered grid film and the picture display area;
displaying a composite image formed by interlacing left and right eye source images in a picture display area on a display screen;
the user wears 3D glasses corresponding to the staggered grid film type to view the composite image displayed through the staggered grid film.
Further, the method of the present invention is also applicable to the case of switching between the horizontal screen and the vertical screen of the display screen, for example, when the display direction of the display screen is switched between the vertical screen and the horizontal screen, the synthesized image is correspondingly adjusted to be in the vertical screen or horizontal screen format, so that the grid for transmitting the image blocks in the original row direction is changed into the image blocks in the transmission column direction, the grid for transmitting the image blocks in the original transmission column direction is changed into the image blocks in the transmission row direction, and the first left-eye image block in the upper left corner of the picture is correspondingly aligned with the first light-transmitting grid of the staggered grid. Because the staggered grids are arranged in the horizontal direction and the vertical direction, the method can still be applied to the image after the switching of the row pixels and the column pixels, thereby realizing the 3D display under the condition of switching the screen direction.
Further, crisscross grid pad pasting crisscross a plurality of grating check that pass that are provided with, first grating check and a plurality of second grating check that pass promptly, first grating check and second grating check that pass set up in the level and vertical direction is crisscross simultaneously.
The staggered arrangement means that grids directly adjacent to the first transparent grids on the upper side, the lower side, the left side and the right side are second transparent grids, and grids directly adjacent to the second transparent grids on the upper side, the lower side, the left side and the right side are first transparent grids.
Further, the first light-transmitting grid is used for transmitting light with a first polarization direction, the second light-transmitting grid is used for transmitting light with a second polarization direction, the first polarization direction and the second polarization direction are perpendicular to each other, or,
the first light-transmitting grid is used for transmitting light rays with a first color, the second light-transmitting grid is used for transmitting light rays with a second color direction, and the first color is different from the second color.
Furthermore, the first light-transmitting grid and the second light-transmitting grid are respectively used for transmitting images representing the left eye area and the right eye area.
The staggered grid film is detachably arranged on the display screen.
The left and right eye source images are respectively from the left eye visual angle image and the right eye visual angle image.
The composite image formed by the left-eye source image and the right-eye source image through interlacing synthesis comprises a plurality of interlaced blocks. The interlaced region includes a plurality of left-eye image blocks and right-eye image blocks, and the left-eye image blocks and the right-eye image blocks are interlaced in the horizontal direction and the vertical direction.
The image blocks directly adjacent to the left-eye image block at the top, bottom, left and right are right-eye image blocks, and the image blocks directly adjacent to the right-eye image block at the top, bottom, left and right are left-eye image blocks.
The composite image includes a plurality of interlaced blocks corresponding to the light-transmitting cells of the interlaced cell film.
Furthermore, when a composite image formed by the left-eye source image and the right-eye source image in an interlaced mode is displayed on the display screen, a plurality of interlaced blocks of the composite image are aligned with the light-transmitting grids of the interlaced grid adhesive film. Specifically, aligning the plurality of interlaced blocks of the composite image with the light-transmitting cells of the interlaced cell film comprises:
the left eye image block is aligned with the first light-transmitting grid, and the right eye image block is aligned with the second light-transmitting grid.
According to an alternative embodiment of the invention, the staggered grid film is a polarized light staggered film, or a red-green staggered film, or a blue-green staggered film.
A user wears 3D glasses corresponding to the type of the staggered grid adhesive film to watch the displayed composite image through the staggered grid adhesive film, wherein the 3D glasses comprise polarized light 3D glasses, red and green 3D glasses or blue and green 3D glasses;
the user can view the image displayed on the vertical screen or view the image displayed on the horizontal screen after the screen is rotated.
According to an optional embodiment of the present invention, a method for implementing 3D display by using a 2D display screen is further provided, which mainly displays a space grid film in a horizontal or vertical direction, and includes the following steps:
as shown in fig. 6, the staggered grid adhesive film 102 disposed on the surface of the 2D display screen is replaced with a space grid adhesive film;
displaying a synthetic image formed by synthesizing the source images of the left eye and the right eye at intervals on a display screen; the interval synthetic image is obtained by shifting a left-eye source image and a right-eye source image in a preset direction for a preset distance and then carrying out interval synthesis;
the interval grating film is provided with a plurality of transparent grating grids at intervals, namely a plurality of first transparent grating grids 103 and a plurality of second transparent grating grids 104, and the first transparent grating grids and the second transparent grating grids are arranged at horizontal intervals or at vertical intervals.
As shown in fig. 6, the first transparent grating grid and the second transparent grating grid are arranged at intervals in the horizontal direction, the grids directly adjacent to the left and right of the first transparent grating grid are both the second transparent grating grids, and the grids directly adjacent to the left and right of the second transparent grating grid are both the first transparent grating grids;
according to the optional embodiment of the present invention, the first transparent grating lattice and the second transparent grating lattice may be arranged at intervals in the vertical direction, the grids directly adjacent to each other above and below the first transparent grating lattice are both the second transparent grating lattices, and the grids directly adjacent to each other above and below the second transparent grating lattice are both the first transparent grating lattices;
further, the first light-transmitting grid is used for transmitting light with a first polarization direction, the second light-transmitting grid is used for transmitting light with a second polarization direction, the first polarization direction and the second polarization direction are perpendicular to each other, or,
the first light-transmitting grid is used for transmitting light of a first color, the second light-transmitting grid is used for transmitting light of a second color direction, and the first color is different from the second color.
Furthermore, the first light-transmitting grid and the second light-transmitting grid are respectively used for transmitting images representing left eye areas and right eye areas.
The synthetic image formed by synthesizing the left-eye source image and the right-eye source image at intervals comprises a plurality of interval blocks, the interval area comprises a plurality of left-eye image blocks and right-eye image blocks, and the left-eye image blocks and the right-eye image blocks are arranged at intervals in the horizontal direction or the vertical direction.
Further, when displaying a composite image composed of left and right eye source images at intervals on a display screen, aligning a plurality of spaced blocks of the composite image with light-transmitting grids of the spaced grid film, and aligning a plurality of staggered blocks of the composite image with light-transmitting grids of the staggered grid film comprises: the left eye image block is aligned with the first light-transmitting grid, and the right eye image block is aligned with the second light-transmitting grid.
In the embodiment, the space grid film is arranged on the surface of the display screen, and the synthetic image formed by synthesizing the left and right eye source images at intervals is displayed on the display screen, so that stereoscopic vision can be conveniently realized.
As shown in fig. 7, according to a further embodiment of the present invention, the apparatus 100 further includes an adjusting module, after displaying the composite image formed by interlacing and combining the left and right eye source images on the display screen, the adjusting module provides a screen image adjusting function interface, so that the user can adjust the composite image to be aligned with the interlaced grid film or the spaced grid film by clicking the function button to zoom, move left and right and rotate the angle.
Preferably, the user may judge the alignment condition according to the screen by displaying a composite image of a predetermined 3D object or displaying a marker line.
After the film is pasted, a user wears the polarized light lens, and simultaneously displays a 3D composite image of objects or patterns such as fish, a car and an arrow through the adjusting module. The user can input and set the cell width parameter s and move the image integrally left and right, so that the boundary of the left and right eye image blocks in the composite image coincides with the division bar between the sticker cells, thereby enabling the display of a 3D image.
Furthermore, the device also comprises a parameter setting module which can set and memorize all adjusted parameters and always coincide the boundary lines of the image display of the left eye and the right eye with the division frames of the adhesive film when all the 3D videos and 3D images are played later. For example, for the case of picture rotation, by memorizing the setting parameters in the two states of the landscape screen and the portrait screen, the user can freely switch between the landscape screen and the portrait screen without realigning;
alternatively, the adjustment module may display a mark line on the display screen, such as a vertical line, a horizontal line, or a cross line, where the vertical line may be located at the left-eye or right-eye area in the composite image, and the user can determine the alignment degree of the composite image with the grid on the film by observing the mark line, and perform the frame adjustment through a shift button provided by the adjustment module.
Since the images of the left and right eyes are displayed at intervals, the regions that are not visible to the left and right eyes are the regions where the grid frame is located. Therefore, the smaller the width of the grid frame, the better the display effect, and the limit is that the width of each grid frame is only the width of one pixel. The width of the grid frame depends on the production precision of the film.
According to an embodiment of the present invention, the frame image adjustment function interface is shown in fig. 7, before displaying the composite image on the electronic display screen, a rectangular display frame may be displayed on the display screen, and the display frame is used for displaying the composite image subsequently; the user can adjust the size, position, etc. of the display frame. For example, zooming in and out of the display window can be performed by zooming in and out through a mouse or a finger, and the center of the edge can be pressed to push inwards or expand outwards. In conclusion, a display frame with the size desired by the user is formed; alternatively, the display frame may be shaped as a special shape, such as a circular frame on a watch;
optionally, the display frame may be resized as follows: the center of the display frame can be clicked, or the display frame can move after clicking for 0.3-0.9 seconds. After the display frame is fixed, the position, size and shape of the previous frame are followed when the next display or play is performed.
Furthermore, an importing button is arranged on the interface and used for importing preset settings;
a parameter setting button for setting the current grid width and picture size parameters; for example, for different films, different film grid sizes may exist, and according to the grid size and the size of the image block of the composite image, the size of the image to be zoomed can be automatically calculated, so that the adjustment operation of a user is saved;
and the storage button is used for storing the currently adjusted picture parameters, including picture size, horizontal position, vertical position, rotation angle and grid size. For example, for the case of picture rotation, by memorizing the setting parameters in the two states of the landscape screen and the portrait screen, the user can freely switch between the landscape screen and the portrait screen without realigning;
according to an embodiment of the present invention, if the device is running for the first time, or the last time the display frame position cannot be determined, or reset, the default display frame may be set to, for example, a size of 2cm x 2cm square, or a screen size; the center of this display frame is at the center of the hardware display. Meanwhile, all adjustable graphic blocks (such as thickened sidelines, left and right arrows, membrane parameter XY filling positions and the like) of the display frame can be displayed so as to facilitate further operation of an operator, and a user can operate in a mode of touching the image blocks or in a mode of clicking interface buttons.
The display screen is also provided with two buttons for selecting a correction mode, namely a first correction mode button and a second correction mode button;
the invention has two picture correction modes, wherein in the first correction mode, for the condition that the staggered grid film is inclined (the whole shape of the film surface is unchanged, and the film surface is still rectangular or square and the like), the staggered composite image can be rotated to be consistent with the inclination angle of the staggered grid film by rotating the staggered composite image, and then the staggered composite image and the staggered grid film are aligned by zooming the image, adjusting the image up and down and adjusting the image left and right;
in the second correction method, when the staggered grid is pasted with a film slant and the staggered grid is distorted in film surface (for example, when the staggered grid is a rectangle with a slight parallel distortion, that is, a parallelogram), the original staggered composite image is changed into a parallelogram by distorting or obliquely deforming the staggered composite image in the x or y direction, so that the side in the x direction is parallel to the side in the horizontal direction of the slant staggered grid, and the side in the longitudinal direction is kept vertical.
As shown in fig. 8, the interlaced composite image 203 and the interlaced grid film 102, the interlaced grid film 102 having a slight inclination (e.g., an inclination angle of 2-10 °) during application to the surface of the display screen, and optionally including a slight distortion; then the interlaced composite image 203 and the interlaced grid overlay 102 are not perfectly aligned, resulting in misalignment and failure to achieve a good display, as shown at 420; at this time, by twisting or deforming the interlaced composite image 203 in the y direction so that the side in the x direction is parallel to the oblique side in the x direction of the grid, in actual operation, each pixel point of the interlaced composite image is shifted downward along the x-axis direction with respect to the y coordinate, the shift distance is proportional to the distance from the x-axis direction to the starting point of the left side of the image, so that the image is twisted downward and deformed, and the shape of the image is close to that of the interlaced grid, as shown in 430 and 440;
further, as shown in fig. 9, in the distorted interleaved image 2032, the left-eye block image 2031 or the right-eye block image 2031 still cannot be kept completely matched with the grid 1021, and at this time, the pixel value of a triangular area 2042 beyond the grid 1021 after the image distortion may be modified to black, or the pixels of a rectangular area 2041 with a predetermined width in the boundary range on the right side of the image block may be set to black, so as to avoid the distorted image from crossing the grid and entering other grid areas;
according to another embodiment of the present invention, there is also provided an electronic device for implementing 3D display by using a 2D display screen, including:
the display screen comprises a 2D display screen and a staggered grid sticking film arranged on the surface of the display screen;
the display screen is used for displaying a synthetic image formed by the left-eye source image and the right-eye source image in an interlaced mode;
the device comprises a processor and a memory, wherein executable program commands are stored on the memory, and when the processor executes the program commands, the method is realized.
Although the illustrative embodiments of the present invention have been described in order to facilitate those skilled in the art to understand the invention, it is to be understood that the invention is not limited in scope to the specific embodiments, but rather, it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and it is intended that all matter contained in the invention and created by the inventive concept be protected.
Claims (12)
1. A method for realizing 3D display by using a 2D display screen is characterized by comprising the following steps:
inputting a synthetic image formed by interlacing and synthesizing a left-eye source image and a right-eye source image into a 2D display screen, wherein the synthetic image is obtained by interlacing and synthesizing the left-eye source image and the right-eye source image after the left-eye source image and the right-eye source image are shifted for a preset distance in a preset direction; a staggered grid film is detachably arranged on the surface of the display screen, and the staggered grid film corresponds to the combined image formed by the staggered synthesis; the staggered grid film is provided with a plurality of transparent grids in a staggered mode, and the transparent grids comprise a plurality of first transparent grids and a plurality of second transparent grids, wherein the first transparent grids and the second transparent grids are arranged in a staggered mode in the horizontal direction and the vertical direction at the same time, and the first transparent grids and the second transparent grids are respectively used for transmitting a left eye image block and a right eye image block which represent a left eye area and a right eye area in a staggered composite image;
the synthetic image is obtained by staggering and synthesizing a left-eye source image and a right-eye source image after shifting the left-eye source image and the right-eye source image in a preset direction by a preset distance, and comprises the following steps:
s21, receiving left and right eye source images which represent images shot or generated by the visual angles of the left and right eyes, and adjusting and cutting the two source images to be consistent with the pixel size of a display frame and to be overlapped and aligned, wherein the display frame is an area when a composite image is displayed on a display screen;
step S22, expanding the right side of the left-eye image to form one or more columns of blank pixels, wherein the expansion width is equal to the number of pixels corresponding to the width of one grid;
s23, translating the right-eye source image to the right by the pixel number corresponding to the grid width;
step S24, generating a left-eye source image and a right-eye source image which are shifted by a preset distance respectively, wherein the method specifically comprises the following steps:
respectively generating a left-eye source image and a right-eye source image according to the expanded sizes, wherein the sizes of the left-eye source image and the right-eye source image are changed into the expanded sizes;
step S25, processing the left-eye source image and the right-eye source image which are shifted by the preset distance into screen images respectively, wherein the steps are as follows: reserving a preset size shape image of a central point or an upper left point of a left-eye source image, wherein the size and the shape of the preset size shape image are consistent with those of a grid; on the basis of a left-eye source image, starting from an upper left point or a central point, and after the upper, lower, left and right peripheries expand the grid width step pitch, reserving an image with a preset size shape, and thus, until the processing reaches the boundary of the left-eye source image, finishing processing all the left-eye source images, thereby obtaining an image processed by the left-eye source image and forming a screen-shaped image with uniform bit holes;
taking the upper left point or the center point of the left eye source image as the starting point, deducting the shape image with the preset size of the upper left point or the center point, then according to the grid width step pitch, expanding the grid width step pitch on the upper, lower, left and right peripheries, deducting the shape image with the preset size, repeatedly expanding, and making a screen-shaped image with uniform position holes;
s26, overlapping and aligning the obtained screen-shaped left-eye source image and the screen-shaped right-eye source image, splicing and fusing the two together to obtain a composite image synthesized in a staggered manner;
in the synthesized image, a shielding strip block is arranged at the boundary of the left eye image block and the right eye image block, and the shielding strip block comprises a longitudinal shielding strip block and a transverse shielding strip block;
displaying a preset picture display area on a display screen, displaying an alignment adjustment interface, and adjusting the picture display area based on the relationship between the position of the staggered grid pasting film and the picture display area, so that when a composite image formed by the staggered left-eye source images and the right-eye source images is displayed on the display screen, a plurality of staggered blocks of the composite image are aligned with light-transmitting grids of the staggered grid pasting film; the alignment means that: aligning the left-eye image block with the first light-transmitting grid, and aligning the right-eye image block with the second light-transmitting grid; the interlaced blocks comprise a plurality of left-eye image blocks and right-eye image blocks, and the left-eye image blocks and the right-eye image blocks are arranged in a horizontal and vertical direction in an interlaced mode;
for the condition that the staggered grid film is inclined and the film surface of the staggered grid film is distorted, the original staggered composite image is changed into a parallelogram by distorting the staggered composite image in the y direction during correction, so that the side in the x direction is parallel to the side in the horizontal direction of the inclined staggered grid, and the longitudinal side is kept vertical; for each pixel point of the interlaced synthetic image, shifting downwards a y coordinate along the direction of an x axis, wherein the shifting distance is in direct proportion to the distance from the x axis to the starting point of the left side of the image, so that the image is distorted and deformed downwards and is close to the shape of the interlaced grid;
if the left eye block image or the right eye block image in the distorted staggered image still cannot be completely matched with the grid, modifying the pixel value of a triangular area exceeding the grid part after the image is distorted into black or setting the pixel of a rectangular area with a preset width in the right side boundary range of the image block into black, so that the distorted image is prevented from crossing the grid and entering other grid areas;
displaying a composite image formed by interlacing left and right eye source images in a picture display area on a display screen;
the user wears 3D glasses corresponding to the staggered grid film type to view the composite image displayed through the staggered grid film.
2. The method for realizing 3D display by using the 2D display screen as claimed in claim 1, wherein:
when the display direction of the display screen is switched between the vertical screen and the horizontal screen, the synthetic image is correspondingly adjusted to be changed into a vertical screen format or a horizontal screen format, so that the grid used for transmitting the image blocks in the original row direction is changed into the image blocks in the transmission column direction, the grid of the image blocks in the original transmission column direction is changed into the image blocks in the transmission row direction, and the first left eye image block at the upper left corner of the switched synthetic image is aligned with the first light-transmitting grid at the upper left corner of the rotated staggered grid film.
3. The method for realizing 3D display by using the 2D display screen according to claim 1, wherein the method comprises the following steps:
the predetermined size is square, rectangular, hexagonal, rhombic, circular or triangular.
4. The method for realizing 3D display by using the 2D display screen according to claim 1, wherein the method comprises the following steps:
the staggered arrangement refers to the simultaneous staggering in the vertical and horizontal directions, namely, the grids directly adjacent to the first transmission grid in the upper, lower, left and right directions are all second transmission grids, and the grids directly adjacent to the second transmission grids in the upper, lower, left and right directions are all first transmission grids.
5. The method for realizing 3D display by using the 2D display screen according to claim 1, wherein the method comprises the following steps:
the first light-transmitting grid is used for transmitting light rays in a first polarization direction, the second light-transmitting grid is used for transmitting light rays in a second polarization direction, and the first polarization direction and the second polarization direction are perpendicular to each other or have opposite rotation directions;
alternatively, the first and second liquid crystal display panels may be,
the first light-transmitting grid is used for transmitting light of a first color, the second light-transmitting grid is used for transmitting light of a second color, and the first color is different from the second color.
6. The method for realizing 3D display by using the 2D display screen as claimed in claim 1, wherein:
the left-eye source image and the right-eye source image are respectively from an image of a left-eye visual angle and an image of a right-eye visual angle;
the image blocks directly adjacent to the left-eye image block at the upper, lower, left and right sides are right-eye image blocks, and the image blocks directly adjacent to the right-eye image block at the upper, lower, left and right sides are left-eye image blocks.
7. The method for realizing 3D display by using the 2D display screen according to claim 1, wherein the method comprises the following steps:
the width of the shielding strip block is larger than the strip frame width of the staggered grid film pasting.
8. Method for realizing 3D display by using 2D display screen according to claim 1,
the alignment adjustment interface is provided with a correction mode selection button, a zooming button, a left-right moving button and a rotating button, so that a user can adjust a picture display area in a zooming size, left-right moving and rotating angle mode according to a calibration mode, and a composite image displayed in the picture display area is aligned with the staggered grid pasting film;
and an import button for importing a predetermined setting;
the parameter setting button is used for setting the current grid width and picture size parameters;
and the storage button is used for storing the currently adjusted picture parameters, including picture size, horizontal position, vertical position, rotation angle and grid size.
9. The method for realizing 3D display by using the 2D display screen is characterized in that the staggered grid adhesive film adopts a polarized light staggered adhesive film, a red-green staggered adhesive film or a blue-green staggered adhesive film;
the user wears 3D glasses corresponding to the staggered grid film pasting type to watch the composite image displayed through the staggered grid film pasting, and the 3D glasses comprise polarized light 3D glasses, red and green 3D glasses or blue and green 3D glasses.
10. A method for enabling 3D display with a 2D display screen according to claim 1,
the detachable manner includes: the sticking film is clamped and fixed on the surface of the display screen through a clamping and fixing component; or the sticking film is adsorbed on the surface of the display screen in a mode of arranging adsorption glue on the surface of the sticking film.
11. An apparatus for implementing 3D display using a 2D display screen, for implementing the method of any one of claims 1 to 10, comprising: a 2D display screen, and,
the staggered grid film is arranged on the surface of the display screen;
the interlaced grid overlay corresponds to the interlaced composite image; the staggered grid film is provided with a plurality of transparent grids in a staggered mode, and the transparent grids comprise a plurality of first transparent grids and a plurality of second transparent grids, wherein the first transparent grids and the second transparent grids are arranged in a staggered mode in the horizontal direction and the vertical direction at the same time, and the first transparent grids and the second transparent grids are respectively used for transmitting a left eye image block and a right eye image block which represent a left eye area and a right eye area in a staggered composite image;
the display screen is used for displaying a synthetic image formed by the left-eye source image and the right-eye source image in an interlaced mode;
and displaying a preset picture display area on the display screen, displaying an alignment adjustment interface, and adjusting the composite image in the picture display area based on the relationship between the position of the staggered grid adhesive film and the picture display area so that the transparent grating of the staggered grid adhesive film is aligned with the staggered blocks of the composite image.
12. An electronic device for realizing 3D display by using a 2D display screen, comprising:
a 2D display screen, and,
the staggered grid film is arranged on the surface of the display screen;
the display screen is used for displaying a synthetic image formed by the left-eye source image and the right-eye source image in an interlaced mode;
processor and a memory, said memory having stored thereon executable program instructions, which when executed by said processor, implement the method of one of claims 1 to 10.
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