Naked eye 3D image generation method and system, electronic equipment and storage medium

Abstract

The invention provides a naked eye 3D image generation method and system, electronic equipment and a storage medium. The method comprises the following steps: arranging and mixing image information of a plurality of angles to obtain a multi-view image; the modulated pixel points are in one-to-one correspondence with the pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; distributing pixel resources in the mixed parallax image, obtaining an optimal watching point position coordinate, and adjusting the resolution in the mixed parallax image after the pixel resources are distributed according to the optimal watching point position coordinate; solving focal length information of the pixelated harmonic diffraction subunit, and solving a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and the designed wavelength; and acquiring space coordinates of the plurality of viewing angles, and adjusting the positions of the plurality of pixelated harmonic diffraction subunits according to the space coordinates and the imaging focal length. According to the invention, the 3D image is more real, and the visual effect and definition can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of naked-eye 3D display technology, and in particular to a naked-eye 3D image generation method, system, electronic equipment and storage medium. Background Art

[0002] At present, the development of flat display technology has become increasingly mature, from black and white to color, from static to dynamic, and the resolution has also been greatly improved. However, flat display technology lacks three-dimensional information, which limits the perception of three-dimensional real scenes. 3D movies with stereoscopic visual effects are more popular than 2D movies that lack realism. Nowadays, naked-eye 3D has been widely used in advertising media, exhibitions and other fields, which can bring a deeper visual experience to the audience.

[0003] Among the existing technologies, the traditional naked-eye 3D display technology still has low brightness and poor clarity, which makes the visual effect of the image poor and it is difficult to meet the requirements of clear and realistic image effects. It is also difficult to design and the cost is high. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a naked-eye 3D image generation method, system, electronic device and storage medium to solve the deficiencies in the above-mentioned prior art.

[0005] In a first aspect, the present invention provides a method for generating a naked-eye 3D image, the method comprising: Acquire image information at several angles of a display panel providing amplitude information, and arrange and mix the image information at several angles to obtain a multi-viewing angle image; Modulating pixel points in the multi-view image based on a plurality of pixelated harmonic diffraction subunits attached to the display panel to obtain modulated pixel points, and making one-to-one correspondence between the modulated pixel points and pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; Allocating pixel resources in the mixed parallax image, and obtaining optimal viewing point coordinates, and adjusting the resolution of the mixed parallax image after allocating the pixel resources according to the optimal viewing point coordinates; Obtaining focal length information of the pixelated harmonic diffraction subunit, and solving a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and a design wavelength; The spatial coordinates of a plurality of viewing angles are acquired, and the positions of a plurality of the pixelated harmonic diffraction sub-units are adjusted according to the spatial coordinates and the imaging focal length.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: the mixed parallax image obtained by one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunit can not only improve the image brightness and clarity, but also improve the visual effect, and the resolution is adjusted by allocating pixel resources, which effectively improves the clarity and makes the image more realistic, and the position of the pixelated harmonic diffraction subunit is adjusted by imaging focal length, which further improves the image clarity and makes the image more realistic.

[0007] Furthermore, the step of obtaining image information at several angles of the display panel providing amplitude information includes: Acquiring the relative position of the display panel according to different viewing positions in space; Each light source of the display panel is discretized according to the relative position to obtain a plurality of discrete point light sources, and three-dimensional image information is generated based on the plurality of discrete point light sources.

[0008] Furthermore, the step of arranging and mixing the image information at several angles to obtain a multi-view image includes: Interweaving and arranging image information at several angles according to the distribution and arrangement rules of the viewpoints of the display panel; The image information at several angles after interlacing and arrangement is converged to the focus of the lens to obtain stereoscopic three-dimensional image information.

[0009] Furthermore, the step of making a one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunit comprises: Acquire the tilt parameter and position coordinates of the multi-view image corresponding to the structural center point of the pixelated harmonic diffraction subunit; The positions of the pixels in the multi-view image are adjusted according to the tilt parameter and the position coordinates, so that the modulated pixels correspond one-to-one with the pixels on the pixelated harmonic diffraction subunit.

[0010] Furthermore, the step of allocating pixel resources in the mixed parallax image and obtaining the coordinates of the best viewing point includes: Acquire a viewing angle between the best viewing point and the display panel based on the best viewing point coordinates and the display panel; Pixel points in the pixelated harmonic diffraction subunit and pixel points in the mixed parallax image are mapped to each other based on the viewing angle.

[0011] Furthermore, the expression for obtaining the focal length information of the pixelated harmonic diffraction subunit is: ; In the formula, represents the focal length, represents the radius of curvature of the pixelated harmonic diffraction subunit, represents the refractive index, represents the design wavelength; The height expression of the pixelated harmonic diffraction subunit is: ; In the formula, represents the height of the pixelated harmonic diffraction subunit, represents the harmonic coefficient; The expression of the focal length of the imaging for several times is: ; In the formula, Indicates Secondary imaging focal length, is the wavelength of incident light, represents the diffraction order, Indicates the design focal length.

[0012] Furthermore, the step of acquiring the spatial coordinates of a plurality of viewing angles and adjusting the positions of a plurality of the pixelated harmonic diffraction subunits according to the spatial coordinates and the imaging focal length includes: Establishing a coordinate system based on the pixelated harmonic diffraction subunit, and acquiring spatial coordinates of a plurality of viewing angles based on the coordinate system; The distance and angle information between the pixelated harmonic diffraction subunit and the display panel are acquired according to the spatial coordinates of the plurality of viewing angles, and the positions of the plurality of pixelated harmonic diffraction subunits are adjusted according to the distance, the angle information and the imaging focal length.

[0013] In a second aspect, the present invention further provides a naked eye 3D image generation system, the system comprising: An acquisition and arrangement module is used to acquire image information at several angles of a display panel providing amplitude information, and arrange and mix the image information at several angles to obtain a multi-viewing angle image; a modulation correspondence module, configured to modulate the pixel points in the multi-view image based on a plurality of pixelated harmonic diffraction subunits attached to the display panel to obtain modulated pixel points, and to make a one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; an allocation adjustment module, configured to allocate pixel resources in the mixed parallax image, obtain optimal viewing point coordinates, and adjust the resolution of the mixed parallax image after the pixel resources are allocated according to the optimal viewing point coordinates; An obtaining module, used for obtaining focal length information of the pixelated harmonic diffraction subunit, and solving a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and a design wavelength; The acquisition and adjustment module is used to acquire the spatial coordinates of a plurality of viewing angles, and adjust the positions of a plurality of the pixelated harmonic diffraction sub-units according to the spatial coordinates and the imaging focal length.

[0014] In a third aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned naked-eye 3D image generation method when executing the computer program.

[0015] In a fourth aspect, the present invention further provides a storage medium having a computer program stored thereon, which implements the above-mentioned naked-eye 3D image generation method when executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a flowchart of a method for generating a naked-eye 3D image in a first embodiment of the present invention; Figure 2 is a structural block diagram of a naked-eye 3D image generation system in a second embodiment of the present invention; Figure 3 FIG. 4 is a schematic diagram of the hardware structure of an electronic device in a third embodiment of the present invention.

[0017] Description of main component symbols: 10. Acquisition and arrangement module; 20. Modulation and corresponding module; 30. Allocation and adjustment module; 40. Calculation module; 50. Acquisition and adjustment module; 60. Bus; 61. Processor; 62. Memory; 63. Communication interface.

[0018] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] Embodiment 1 See also Figure 1 , which shows a naked eye 3D image generation method in a first embodiment of the present invention, the method comprises steps S1 to S5: S1, acquiring image information at several angles of a display panel providing amplitude information, and arranging and mixing the image information at several angles to obtain a multi-viewing image; Specifically, the step S1 includes steps S11 to S14: S11, acquiring the relative position of the display panel according to different viewing positions in space; S12, discretizing each light source of the display panel according to the relative position to obtain a plurality of discrete point light sources, and generating three-dimensional image information based on the plurality of discrete point light sources; S13, interlacing and arranging image information of several angles according to the distribution rule and arrangement rule of the viewpoints of the display panel; S14, converging the image information of the plurality of angles after interlacing and arrangement to the focus of the lens to obtain stereoscopic three-dimensional image information; It needs to be explained that the display panel displays a two-dimensional plane image, and the relative spatial position relative to the viewing position can be obtained according to different viewing positions. In three-dimensional space, a three-dimensional object can be regarded as composed of light emitted by countless tiny discrete point light sources. Each light source in the image displayed on the display panel is discretized according to the relative position, and each light source emits light independently. Then, three-dimensional image information is generated based on the independently emitted light, that is, the independently emitted light in the image displayed by the display panel at different viewing positions. The image information is interlaced and arranged according to the distribution and arrangement rules of the viewpoints of the display panel, and converged to the focus of the lens, so as to generate a stereoscopic three-dimensional image corresponding to the two-dimensional image.

[0023] S2, based on a plurality of pixelated harmonic diffraction subunits attached to the display panel, modulating pixel points in the multi-view image to obtain modulated pixel points, and making a one-to-one correspondence between the modulated pixel points and pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; Specifically, the step S2 includes steps S21 to S22: S21, obtaining the tilt parameter and position coordinates of the multi-view image corresponding to the structural center point of the pixelated harmonic diffraction subunit; S22, adjusting the positions of pixels in the multi-view image according to the tilt parameter and the position coordinates, so that the modulated pixels correspond one-to-one to the pixels on the pixelated harmonic diffraction subunit; It should be explained that, in this embodiment, the pixelated harmonic diffraction subunit is a phase modulation panel, and the phase modulation panel has a plurality of pixelated harmonic diffraction microprisms, by obtaining the structural center point of the pixelated harmonic diffraction subunit and the corresponding tilt parameter and position coordinate of the pixel point of the multi-view image, and according to the tilt parameter and the position coordinate, the remaining pixel points of the multi-view image are matched one by one with the modulated pixel points; It should be noted that in the one-to-one correspondence process, interlacing arrangement is also required to form a multi-view mixed parallax image. In this embodiment, a single image can be expressed as: ; In the formula, Represents a single image, Represent the pixels of the image, represents the diffraction order, Indicates the harmonic coefficient.

[0024] S3, allocating pixel resources in the mixed parallax image, obtaining optimal viewing point coordinates, and adjusting the resolution of the mixed parallax image after the pixel resources are allocated according to the optimal viewing point coordinates; Specifically, the step S3 includes steps S31 to S32: S31, obtaining a viewing angle between the best viewing point and the display panel based on the coordinates of the best viewing point and the display panel; S32, mapping pixel points in the pixelated harmonic diffraction subunit and pixel points in the mixed parallax image to each other based on the viewing angle; It needs to be explained that the best viewing point can more effectively and clearly view the image generated by the real panel. The viewing angle between the best viewing point and the display panel is obtained according to the position of the best viewing point, and then the several pixelated harmonic diffraction microprisms in the pixelated harmonic diffraction subunit are mapped to the pixel points in the mixed parallax image according to the viewing angle, thereby making the generated 3D image more realistic and clearer.

[0025] S4, obtaining focal length information of the pixelated harmonic diffraction subunit, and solving a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and the design wavelength; It should be noted that, in this embodiment, the expression for obtaining the focal length information of the pixelated harmonic diffraction subunit is: ; In the formula, represents the focal length, represents the radius of curvature of the pixelated harmonic diffraction subunit, represents the refractive index, represents the design wavelength; The height expression of the pixelated harmonic diffraction subunit is: ; In the formula, represents the height of the pixelated harmonic diffraction subunit, represents the harmonic coefficient; The expression of the focal length of the imaging for several times is: ; In the formula, Indicates Secondary imaging focal length, is the wavelength of incident light, represents the diffraction order, Indicates the design focal length.

[0026] It is worth noting that, since each pixelated harmonic diffraction sub-unit cell is non-periodic, each pixelated harmonic diffraction sub-unit has a uniform height.

[0027] S5, acquiring spatial coordinates of a plurality of viewing angles, and adjusting positions of a plurality of the pixelated harmonic diffraction sub-units according to the spatial coordinates and the imaging focal length; Specifically, the step S5 includes step S51 to step S52: S51, establishing a coordinate system based on the pixelated harmonic diffraction subunit, and acquiring spatial coordinates of a plurality of viewing angles based on the coordinate system; S52, acquiring distance and angle information between the pixelated harmonic diffraction subunit and the display panel according to the spatial coordinates of the plurality of viewing angles, and adjusting positions of the plurality of pixelated harmonic diffraction subunits according to the distance, the angle information and the imaging focal length; It should be noted that, the length and width of the pixelated harmonic diffraction subunit are regarded as the x-axis and y-axis in the spatial coordinate system, and the line perpendicular to the plane of the pixelated harmonic diffraction subunit is used as the z-axis. The spatial coordinates of several viewing angle points can be obtained through this coordinate system, and then the distance and angle information between the pixelated harmonic diffraction subunit and the pixelated harmonic diffraction subunit are obtained according to the spatial coordinates of the several viewing angle points, and the position of the pixelated harmonic diffraction subunit is adjusted according to the distance, angle information and imaging focal length, so that the 3D image formed by the pixelated harmonic diffraction subunit and the display panel is clearer, and there is always a feeling of viewing the image at the best viewing point, which further improves the clarity and authenticity of the 3D image.

[0028] In summary, the naked-eye 3D image generation method in the above-mentioned embodiment of the present invention, by obtaining a mixed parallax image by one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunit, can not only improve the image brightness and clarity, but also improve the visual effect. By allocating pixel resources to adjust the resolution, the clarity is effectively improved, making the image more realistic. In addition, by adjusting the position of the pixelated harmonic diffraction subunit through the imaging focal length, the image clarity is further improved and the image is made more realistic.

[0029] Embodiment 2 The present invention also proposes a naked eye 3D image generation system, see Figure 2 , shown is a naked eye 3D image generation system in a second embodiment of the present invention, the system comprising: An acquisition and arrangement module 10 is used to acquire image information at several angles of a display panel providing amplitude information, and arrange and mix the image information at several angles to obtain a multi-viewing angle image; A modulation correspondence module 20, configured to modulate the pixel points in the multi-view image based on a plurality of pixelated harmonic diffraction subunits attached to the display panel to obtain modulated pixel points, and to make a one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; An allocation adjustment module 30, configured to allocate pixel resources in the mixed parallax image, obtain optimal viewing point coordinates, and adjust the resolution of the mixed parallax image after allocating the pixel resources according to the optimal viewing point coordinates; An obtaining module 40 is used to obtain focal length information of the pixelated harmonic diffraction subunit, and solve a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and a design wavelength; The expression for obtaining the focal length information of the pixelated harmonic diffraction subunit is: ; In the formula, represents the focal length, represents the radius of curvature of the pixelated harmonic diffraction subunit, represents the refractive index, represents the design wavelength; The height expression of the pixelated harmonic diffraction subunit is: ; In the formula, represents the height of the pixelated harmonic diffraction subunit, represents the harmonic coefficient; The expression of the focal length of the imaging for several times is: ; In the formula, Indicates Secondary imaging focal length, is the wavelength of incident light, represents the diffraction order, Indicates the design focal length; The acquisition and adjustment module 50 is used to acquire the spatial coordinates of a plurality of viewing angles, and adjust the positions of a plurality of the pixelated harmonic diffraction sub-units according to the spatial coordinates and the imaging focal length.

[0030] Specifically, in some optional embodiments, the obtaining arrangement module 10 includes: A first acquisition unit, configured to acquire a relative position of the display panel according to different viewing positions in space; a discretization unit, configured to discretize each light source of the display panel according to the relative position to obtain a plurality of discrete point light sources, and generate three-dimensional image information based on the plurality of discrete point light sources; An arrangement unit, used for interlacing and arranging image information of several angles according to the distribution rule and arrangement rule of the viewpoints of the display panel; The converging unit is used to converge the image information of several angles after being interlaced and arranged to the focus of the lens to obtain stereoscopic three-dimensional image information.

[0031] Specifically, in some optional embodiments, the modulation corresponding module 20 includes: A second acquisition unit, configured to acquire a tilt parameter and a position coordinate of the multi-view image corresponding to a structural center point of the pixelated harmonic diffraction subunit; The corresponding adjustment unit is used to adjust the pixel positions in the multi-view image according to the tilt parameter and the position coordinates, so that the modulated pixel points correspond one-to-one with the pixels on the pixelated harmonic diffraction subunit.

[0032] Specifically, in some optional embodiments, the allocation adjustment module 30 includes: A third acquisition unit, configured to acquire a viewing angle between the best viewing point and the display panel based on the coordinates of the best viewing point and the display panel; A mapping unit is used to map pixel points in the pixelated harmonic diffraction sub-unit with pixel points in the mixed parallax image based on the viewing angle.

[0033] Specifically, in some optional embodiments, the acquisition adjustment module 50 includes: An establishing unit, configured to establish a coordinate system based on the pixelated harmonic diffraction subunit, and obtain spatial coordinates of a plurality of viewing angles based on the coordinate system; An acquisition and adjustment unit is used to acquire the distance and angle information between the pixelated harmonic diffraction subunit and the display panel according to the spatial coordinates of the plurality of viewing angles, and adjust the positions of the plurality of pixelated harmonic diffraction subunits according to the distance, the angle information and the imaging focal length.

[0034] The functions or operation steps implemented when the above modules and units are executed are generally the same as those in the above method embodiments, and will not be repeated here.

[0035] The naked-eye 3D image generation system provided in the embodiment of the present invention has the same implementation principle and technical effects as those of the aforementioned method embodiment. For the sake of brief description, for matters not mentioned in the system embodiment, reference may be made to the corresponding contents in the aforementioned method embodiment.

[0036] Embodiment 3 The present invention also provides an electronic device, see Figure 3 , which is a schematic diagram of the hardware structure of the electronic device in the third embodiment of the present invention.

[0037] The electronic device may include a processor 61 and a memory 62 storing computer program instructions.

[0038] Specifically, the processor 61 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the present application.

[0039] Among them, the memory 62 may include a large-capacity memory for data or instructions. For example, but not limitation, the memory 62 may include a hard disk drive (HDD), a floppy disk drive, a solid-state drive (SSD), a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 62 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 62 may be inside or outside the data processing device. In a specific embodiment, the memory 62 is a non-volatile memory. In a specific embodiment, the memory 62 includes a read-only memory (ROM) and a random access memory (RAM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically alterable ROM (EAROM) or a flash memory (FLASH), or a combination of two or more of these. Under appropriate circumstances, the RAM can be a static random access memory (SRAM) or a dynamic random access memory (DRAM), wherein the DRAM can be a fast page mode dynamic random access memory (FPMDRAM), an extended data output dynamic random access memory (EDODRAM), a synchronous dynamic random access memory (SDRAM), etc.

[0040] The memory 62 may be used to store or cache various data files required for processing and / or communication, as well as possible computer program instructions executed by the processor 61 .

[0041] The processor 61 implements the naked-eye 3D image generation method of the first embodiment by reading and executing computer program instructions stored in the memory 62 .

[0042] In some of the embodiments, the electronic device may further include a communication interface 63 and a bus 60. Figure 3 As shown, the processor 61, the memory 62, and the communication interface 63 are connected via a bus 60 and communicate with each other.

[0043] The communication interface 63 is used to realize the communication between the modules, devices, units and / or equipment in the present application. The communication interface 63 can also realize data communication with other components such as: external devices, image / data acquisition equipment, databases, external storage and image / data processing workstations.

[0044] The bus 60 includes hardware, software or both, and couples the components of the device to each other. The bus 60 includes but is not limited to at least one of the following: a data bus, an address bus, a control bus, an expansion bus, and a local bus. By way of example and not limitation, bus 60 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus, or other suitable buses or a combination of two or more of these. Where appropriate, bus 60 may include one or more buses. Although this application describes and illustrates a particular bus, this application contemplates any suitable bus or interconnect.

[0045] The electronic device can acquire the naked-eye 3D image generation system and execute the naked-eye 3D image generation method of the first embodiment.

[0046] In addition, in combination with the naked eye 3D image generation method in the first embodiment, the present application can provide a storage medium for implementation. The storage medium stores computer program instructions; when the computer program instructions are executed by a processor, the naked eye 3D image generation method in the first embodiment is implemented.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for generating naked eye 3D images, characterized in that: The method comprises: Acquire image information at several angles of a display panel providing amplitude information, and arrange and mix the image information at several angles to obtain a multi-viewing angle image; Modulating pixel points in the multi-view image based on a plurality of pixelated harmonic diffraction subunits attached to the display panel to obtain modulated pixel points, and making one-to-one correspondence between the modulated pixel points and pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; Allocating pixel resources in the mixed parallax image, and obtaining optimal viewing point coordinates, and adjusting the resolution of the mixed parallax image after allocating the pixel resources according to the optimal viewing point coordinates; Obtaining focal length information of the pixelated harmonic diffraction subunit, and solving a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and a design wavelength; The spatial coordinates of a plurality of viewing angles are acquired, and the positions of a plurality of the pixelated harmonic diffraction sub-units are adjusted according to the spatial coordinates and the imaging focal length.

2. The naked eye 3D image generation method according to claim 1, characterized in that: The step of obtaining image information at several angles of the display panel providing amplitude information comprises: Acquiring the relative position of the display panel according to different viewing positions in space; Each light source of the display panel is discretized according to the relative position to obtain a plurality of discrete point light sources, and three-dimensional image information is generated based on the plurality of discrete point light sources.

3. The method for generating naked eye 3D images according to claim 1, characterized in that: The step of arranging and mixing image information of several angles to obtain a multi-view image includes: Interweaving and arranging image information at several angles according to the distribution and arrangement rules of the viewpoints of the display panel; The image information at several angles after interlacing and arrangement is converged to the focus of the lens to obtain stereoscopic three-dimensional image information.

4. The method for generating naked eye 3D images according to claim 1, characterized in that: The step of making a one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunit comprises: Acquire the tilt parameter and position coordinates of the multi-view image corresponding to the structural center point of the pixelated harmonic diffraction subunit; The positions of the pixels in the multi-view image are adjusted according to the tilt parameter and the position coordinates, so that the modulated pixels correspond one-to-one with the pixels on the pixelated harmonic diffraction subunit.

5. The naked eye 3D image generation method according to claim 1, characterized in that: The step of allocating pixel resources in the mixed parallax image and obtaining the coordinates of the best viewing point includes: Acquire a viewing angle between the best viewing point and the display panel based on the best viewing point coordinates and the display panel; Pixel points in the pixelated harmonic diffraction subunit and pixel points in the mixed parallax image are mapped to each other based on the viewing angle.

6. The naked eye 3D image generation method according to claim 1, characterized in that: The expression for obtaining the focal length information of the pixelated harmonic diffraction subunit is: ； In the formula, represents the focal length, represents the radius of curvature of the pixelated harmonic diffraction subunit, represents the refractive index, represents the design wavelength; The height expression of the pixelated harmonic diffraction subunit is: ； In the formula, represents the height of the pixelated harmonic diffraction subunit, represents the harmonic coefficient; The expression of the focal length of the imaging for several times is: ； In the formula, Indicates Secondary imaging focal length, is the wavelength of incident light, represents the diffraction order, Indicates the design focal length.

7. The naked eye 3D image generation method according to claim 1, characterized in that: The step of acquiring the spatial coordinates of a plurality of viewing angles and adjusting the positions of a plurality of the pixelated harmonic diffraction sub-units according to the spatial coordinates and the imaging focal length comprises: Establishing a coordinate system based on the pixelated harmonic diffraction subunit, and acquiring spatial coordinates of a plurality of viewing angles based on the coordinate system; The distance and angle information between the pixelated harmonic diffraction subunit and the display panel are acquired according to the spatial coordinates of the plurality of viewing angles, and the positions of the plurality of pixelated harmonic diffraction subunits are adjusted according to the distance, the angle information and the imaging focal length.

8. A naked eye 3D image generation system, characterized in that: The system comprises: An acquisition and arrangement module is used to acquire image information at several angles of a display panel providing amplitude information, and arrange and mix the image information at several angles to obtain a multi-viewing angle image; a modulation correspondence module, configured to modulate the pixel points in the multi-view image based on a plurality of pixelated harmonic diffraction subunits attached to the display panel to obtain modulated pixel points, and to make a one-to-one correspondence between the modulated pixel points and the pixels on the pixelated harmonic diffraction subunits to obtain a mixed parallax image; an allocation adjustment module, configured to allocate pixel resources in the mixed parallax image, obtain optimal viewing point coordinates, and adjust the resolution of the mixed parallax image after the pixel resources are allocated according to the optimal viewing point coordinates; An obtaining module, used for obtaining focal length information of the pixelated harmonic diffraction subunit, and solving a plurality of imaging focal lengths of the pixelated harmonic diffraction subunit according to the focal length information and a design wavelength; The acquisition and adjustment module is used to acquire the spatial coordinates of a plurality of viewing angles, and adjust the positions of a plurality of the pixelated harmonic diffraction sub-units according to the spatial coordinates and the imaging focal length.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the naked-eye 3D image generating method according to any one of claims 1 to 7 is implemented.

10. A storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the naked-eye 3D image generating method according to any one of claims 1 to 7 is implemented.

Images