488 results about "Three dimensional display" patented technology

The invention relates to the technical field of computer-generated holographic three-dimensional display and deep learning, in particular to an unsupervised deep learning method for realizing three-dimensional holographic display. The method comprises the steps of generating a depth map corresponding to a two-dimensional image; the depth image and the two-dimensional image are spliced in the channel dimension to serve as input of a hologram encoder, and a double-U-Net cascade neural network architecture serves as the hologram encoder; angular spectrum diffraction back propagation is carried out through the generated pure phase hologram to realize three-dimensional scene discretization reconstruction, a reconstructed image with a specified depth is obtained, a depth map is uniformly quantized to obtain a plurality of binary masks, loss calculation is carried out on the reconstructed image and a target image superposed with the corresponding depth binary masks, network parameter optimization is carried out, and a target image with the depth corresponding to the target image is obtained. And when the training of the double U-Net cascade neural network architecture is converged, the training stage is ended. According to the method, high-quality three-dimensional hologram reconstruction is realized through layered angular spectrum propagation, and the method has relatively high precision and detail reduction capability.

To improve efficiency of annotation work for machine learning on three-dimensional measurement data.SOLUTION: An information processing device of the present embodiment performs two-dimensional display on a screen about a captured image and first annotation information, and performs three-dimensional display on a screen about measurement data and second annotation information. Then, in response to an operation of a user to correct the first annotation information using the two-dimensional display of the captured image and the first annotation information, the device corrects the first annotation information, and further corrects the second annotation information in response to the correction of the first annotation information. Also, in response to an operation of the user to correct the second annotation information using the three-dimensional display of the measurement data and the second annotation information, the device corrects the second annotation information, and further corrects the first annotation information in response to the correction of the second annotation information.SELECTED DRAWING: Figure 5

The invention belongs to the technical field of image segmentation, and discloses a multi-modal medical image automatic segmentation method and system based on a three-dimensional reconstruction model.The multi-modal medical image automatic segmentation method comprises the steps that multi-modal image data are acquired, and local features of the multi-modal image data are extracted; identifying a patient tissue structure in the multi-modal image data based on the local features; segmenting the tissue structure of the patient in the multi-modal image data by using a segmentation technology, and reconstructing a three-dimensional virtual model based on the tissue structure of the patient; and fusing a three-dimensional virtual model body drawing result and a three-dimensional virtual model surface drawing result to realize three-dimensional display of a segmentation result. According to the method, the influence of human errors and subjective judgment is reduced by identifying and segmenting the tissue structure, so that boundaries of various tissues are identified more accurately, automatic image segmentation can be completed in a short time, and subsequent diagnosis and analysis can be performed more quickly.

The invention relates to a naked eye 3D binocular image acquisition and real-time processing system based on hardware synchronous triggering, and belongs to the technical field of image processing and three-dimensional display. According to the system, a hardware synchronous triggering mechanism is adopted, a time sequence synchronous control unit is used for sending a synchronous pulse signal to a binocular image sensor, and strict synchronization of left and right viewpoint image acquisition is ensured. The image signal processing unit processes collected original data, the stereo parallax correction module performs epipolar correction, and the sub-pixel interleaving module generates a composite view frame according to grating parameters of the display terminal. The system realizes high-speed data transmission through a double-buffer direct memory access DMA mechanism. The problems of visual tearing and weak stereoscopic impression caused by asynchronous binocular image acquisition in the prior art are solved, nanosecond-level synchronization precision is realized, optical crosstalk is reduced, and smoothness and comfort of stereoscopic display are ensured.

The invention relates to a system digital three-dimensional situation display and rendering system comprising an environment visualization module used for collecting environment information data from various data sources and integrating the collected scene information data into the system; the scene visualization module is used for displaying the satellite space environment, the operation effect, the search action and the sensor load by using the scene information data; the spacecraft visualization module is used for checking detailed parameters and detailed information of the spacecraft; and the three-dimensional earth scene rendering module is used for digital earth rendering, and scheduling visual area data based on a terrain scheduling algorithm by acquiring image data and elevation data of a map. According to the method, the understanding and sensing ability of a user to the remote sensing satellite situation is improved through the three-dimensional display technology, the accuracy and scientificity of space situation analysis are enhanced, the limitation of a traditional simulation system in the aspect of space situation display is solved, and situation display is more visual.

The invention relates to the technical field of safety management, in particular to a city safety emergency management system design scheme based on a three-dimensional map, and the scheme comprises a facility space construction module, a risk identification module, a disaster type area identification module, a linkage early warning marking module and an avoidance path analysis module. According to the invention, risk scoring is carried out on facility node coordinates, function levels, the number of accommodated people and service radiuses in a city three-dimensional map, the risk distribution condition of each facility node is visually reflected, and the node risk levels are displayed in a three-dimensional manner by setting the identification map layer through column height, color marking and flicker frequency. Visual focusing and spatial clustering of risk nodes are realized, a commander is helped to quickly identify a high-risk area, response grading of a disaster situation interaction area is effectively refined by performing composite situation grade evaluation on a composite disaster type area and marking an early warning icon, an avoidance passage path is automatically screened and planned, and traffic congestion and secondary risks are avoided in real time.

The invention provides a display module and a display device, and the display module comprises a display panel which comprises a plurality of pixel units arranged in an array; the light control device is arranged on the light emitting side of the display panel, the light control device comprises a first regulation and control layer and a second regulation and control layer which are sequentially arranged on the display panel in a stacked mode, the first regulation and control layer comprises a first refraction layer and a second refraction layer covering the first refraction layer, the first refraction layer comprises a plurality of lenses arranged in an array mode, and the second refraction layer comprises a second refraction layer covering the second refraction layer; the orthographic projection of each lens on the display panel at least covers two pixel units, the refractive index of the first refraction layer is larger than that of the second refraction layer, when the display module is in a three-dimensional display state, liquid crystal molecules in the second regulation and control layer do not deflect, and when the display module is in a two-dimensional display state, liquid crystal molecules in the second regulation and control layer do not deflect. And the second regulation and control layer is equivalent to a plurality of lens units arranged in one-to-one correspondence with the lenses. The display module provided by the embodiment of the invention can reduce view crosstalk in a three-dimensional display state.

The invention discloses a power plant equipment visual closed-loop management system based on three-dimensional modeling, and belongs to the technical field of power plants, and the system comprises a power plant equipment collection module which is used for collecting the whole production cycle data of power plant equipment; the power plant equipment management cloud is used for processing and three-dimensionally displaying the whole production cycle data of the power plant equipment, and performing prediction analysis, early warning notification and recording management on the whole production cycle of the power plant equipment; and the user interaction management terminal is used for performing intelligent management on the whole production cycle of the power plant equipment and managing account information and authority information of a user. According to the method, the problem that the whole production cycle of the power plant equipment cannot be effectively managed based on three-dimensional visualization in the prior art, so that the whole production cycle management effect of the power plant equipment is poor is solved. According to the invention, the whole production cycle of the power plant equipment can be effectively managed based on three-dimensional visualization, so that managers can find abnormal faults and remove the faults in time, and the whole production cycle management effect of the power plant equipment can be improved.

The invention discloses a lightweight processing method and system for PDMS three-dimensional design data, and relates to the related field of data processing, and the method comprises the steps: receiving PDMS three-dimensional design data to be processed, and carrying out the preprocessing of attribute data; extracting a three-dimensional geometric model, performing geometric fidelity weight analysis, and establishing geometric fidelity weight distribution; determining a lightweight display scene; carrying out degradation processing through a polygon degradation module, and loading a visual distortion analyzer to carry out global visual distortion constraint; after the attribute information is rendered, target lightweight PDMS three-dimensional design data is generated; and transmitting the data to a three-dimensional display terminal for calling and displaying after hierarchical storage. The technical problem that it is difficult to guarantee the model precision, details and visual quality while improving the storage and transmission efficiency in existing lightweight processing is solved, and the technical effect of effectively guaranteeing the model precision, details and visual quality while improving the storage and transmission efficiency is achieved.

The invention provides AR glasses based on integrated imaging three-dimensional display. According to the AR glasses, the integrated imaging technology is adopted, a three-dimensional light field is reconstructed through the micro-lens array, and multi-view three-dimensional image display is achieved. The display module adopts a Micro-LED display screen and is combined with a micro-lens array to realize superposition of a virtual image and a real scene. The optical waveguide system uses a holographic waveguide or a free-form surface optical device to guide virtual image light to the visual field of a user, so that the equipment is light and the display definition is ensured. Meanwhile, the system is provided with a head tracking and parallax adjusting module, and an inertial measurement unit (IMU) and an external camera are used for tracking the head movement of a user in real time, dynamically adjusting three-dimensional image display and ensuring the consistency of a virtual image and a real scene. According to the design, through precise matching of the display screen and the micro lens array, high-quality reconstruction of a three-dimensional image is ensured, and the cruising ability of equipment is improved by optimizing power consumption management.

The invention provides a design space position visualization quantifiable method suitable for bridge construction lofting, which specifically comprises the following steps: (1) Dynamo software reads a bridge floor road center line given by a design drawing, and generates a corresponding bridge based on the bridge floor road center line, comprising the following steps: sequentially generating a bridge pier corresponding to a bridge deck road center line, a support padstone at the top of the bridge pier and a bridge deck box girder falling on the support padstone; and (2) reading the bridge corresponding to the midline of the bridge floor road from the Dynamo software by the Revit software, and displaying the bridge. A Dynamo software and Revit software combined three-dimensional modeling calculation method is adopted, the Dynamo software quickly establishes piers, support cushion stones and box girders in batches under an absolute coordinate system, position coordinate calculation of important feature points on a bridge is further completed by means of the Dynamo software, and three-dimensional display is performed on the bridge constructed by the Dynamo software through the Revit software. And synchronously displaying the position coordinates of the important feature points.

The invention discloses an aperiodic coding method for suppressing three-dimensional display distortion and related equipment, and relates to the technical field of image processing. The method comprises the following steps: acquiring a to-be-processed image displayed by a three-dimensional display; obtaining a distortion coefficient of the to-be-processed image relative to a standard image; acquiring an aperiodic code of the to-be-processed image based on the distortion coefficient; and adjusting a coding module of a display unit corresponding to a light control structure in the three-dimensional display based on the non-periodic coding. By implementing the technical scheme provided by the invention, the problem that a traditional fixed compensation parameter scheme is difficult to deal with dynamic distortion is avoided, so that the image quality of the three-dimensional display system in different display areas is effectively improved, and a large-view-field light field design system is realized.

The embodiment of the invention discloses a display device and a preparation method thereof, the display device comprises a display module and an imaging component, the display module comprises a display panel and a lens grating layer, and the lens grating layer comprises a lens. The width of the lens meets a first relational expression: D = 2H * tan theta ', and theta' = arcsin [(sin theta) / n0]. On the basis that one pixel unit corresponds to one lens, each pixel unit comprises a first pixel and a second pixel, and the first pixel and the second pixel are located on the two sides of the optical axis of the lens, the width of the lens is set to meet a first relational expression, and the first relational expression is larger than the second relational expression. Therefore, the risk of light crosstalk of two adjacent pixel units is reduced, the ability of the lens to allocate the first image and the second image is improved, the risk of crosstalk of the first image and the second image is further reduced, and the three-dimensional display effect is improved.

The invention provides a rapid office document arrangement method, medium and system, and belongs to the technical field of document arrangement, and the method, medium and system comprises the following steps: analyzing a mark of a document, and constructing original feature data; constructing a feature processing model; constructing a contribution degree evaluation model to analyze the contribution degree value of the layout element in the document to the document typesetting score; obtaining a contribution degree evaluation model through training; determining a layout priority level and a layout interval value according to the contribution degree value; generating a mark tree of the document; performing dimension reduction mapping on the document feature vector and mapping the document feature vector to a three-dimensional display space to generate a three-dimensional layout mapping model; according to the method, the multi-modal features of the document can be comprehensively analyzed, the contribution degree of each layout element can be predicted, the optimized document layout can be generated, the rendering efficiency can be improved, and the problem that the layout quality is difficult to guarantee at present, and the layout efficiency of the document can be improved is solved. And the rendering performance is improved.

In three-dimensional projective reverse transformation, a distance to a measured object is measured, and three-dimensional coordinate values of each point in the measured object corresponding to each of a plurality of pixels configuring an imaging sensor are calculated. In three-dimensional projective transformation, a three-dimensional shape of is a display object is set. Further, positions of a right side eye and a left side eye of a user with respect to a position of the display object are measured. A projected image or a projected movie corresponding to both eyes of the user is formed.

The invention discloses a three-dimensional display method and system for XRF element scanning results. The method comprises the following steps: 1) performing three-dimensional scanning on a target object by using a three-dimensional XRF scanning system at a currently selected angle, and recording spectral data and three-dimensional position information of each scanning point; 2) calculating the relative content of each element distribution in a scanning position area corresponding to the target object according to the spectral data of each scanning point; according to the three-dimensional position information of each scanning point, generating a three-dimensional point cloud conforming to the surface contour of the target object at the current selected angle; 3) mapping each element existing in the target object calculated at the current angle to an RGB color space, and generating a three-dimensional element distribution diagram with colors; 4) changing the angle and repeating the steps 1-3) once; and 5) splicing the colored three-dimensional element distribution diagrams corresponding to the plurality of different angles to obtain a complete colored three-dimensional element distribution diagram of the target object. According to the invention, scanning blurring and distortion are avoided.

The invention provides a Schiff base optical switch material, the molecular structural formula of which is at least one of the following: # imgabs0. The Schiff base optical switch material has the advantages that the voxel generation and disappearance speeds are both smaller than the limit resolution of human eyes, the response speed is high, and the dynamic refreshing of a three-dimensional image can be realized. Under independent excitation of ultraviolet light or visible light, the luminous intensity of the Schiff base photoswitch material is low, the luminous intensity at the intersection point of the ultraviolet light and the visible light is high, and a formed three-dimensional image is high in brightness and high in contrast ratio. The Schiff base photoswitch material can still be stably switched on and off under multiple excitation of ultraviolet light and visible light, and is good in fatigue resistance and high in stability. The invention also provides a preparation method of the Schiff base optical switch material and a static body three-dimensional display system comprising the Schiff base optical switch material.

The invention discloses a real-time ultra-high-definition interactive naked-eye 3D display content synthesis method, which comprises the following steps of S1, firstly, modeling interactive content, such as buildings, mechanical equipment, game scenes and the like, and converting mechanical and building models and the like into a. Fbx format by means of a. Step file format in a unified manner; s2, completing model processing in professional model processing software such as 3DsMax and the like: unifying coordinate axes, and performing surface reduction on the model; and S3, building an interaction scene in the Unity 3D based on the processed model. And S4, for a scene and a model needing to be displayed, generating a virtual parallax camera equivalent to off-axis photography, and controlling the shooting parameters of the parallax camera. And S5, performing hybrid synthesis on the multi-view parallax image based on the texture bitmap, calculating large-scale pixels based on a calculation shader, and shifting a GPU idle time sequence in a Unity 3D script process, and then uniformly entering a rendering assembly line to complete rendering and synthesis of the whole scene. And S6, developing interaction input logic according to different object interaction requirements. The invention provides a calculation three-dimensional display algorithm based on a texture bitmap, ultra-high-definition naked-eye 3D display content can be synthesized in real time under Unity 3D, and a better 3D display effect can be obtained by combining technologies such as equivalent off-axis photography and the like. In addition, the invention also provides a display efficiency optimization method based on a calculation shader, so that the system can run on a lower-configuration host platform, and the problem of higher hardware requirements for real-time ultrahigh-definition naked-eye 3D display content synthesis while the interaction requirements are met is solved.

The invention provides 2D / 3D fusion display equipment, a 2D / 3D fusion display method and a 2D / 3D fusion display device, and relates to the technical field of display. The 2D / 3D fusion display equipment comprises a first display panel, a second display panel, a third display panel and a fourth display panel, the first display panel is composed of a self-luminous display device, and the self-luminous display device comprises a MicroLED; the second display panel is located on the light emitting side of the first display panel and is composed of a liquid crystal display device; the micro-lens array layer is coupled to the first surface of the light emitting side of the first display panel and is formed by arranging a plurality of micro-lenses; wherein the first display panel is divided into a plurality of control subareas, each control subarea comprises a preset number of self-luminous display devices, and each control subarea is covered by a corresponding micro lens in the micro lens array layer. According to the invention, accurate and continuous two-dimensional and three-dimensional fusion display can be realized while high resolution of two-dimensional display and space information and display brightness of three-dimensional display are maintained.

The invention discloses a deep sea preset separable laying device simulation platform. The simulation platform mainly comprises a simulation mechanical calculation module, a three-dimensional display module, a marine environment module and an external task control module. The three-dimensional display module is responsible for creating an underwater equipment simulation model and a virtual deep sea scene model, the simulation mechanical calculation module receives an external control instruction, analyzes the instruction and substitutes the instruction into a corresponding dynamic model for calculation, and after the external task control module is started, configuration parameters are manually set, so that the underwater equipment simulation model and the virtual deep sea scene model are simulated. The control unit reads the task parameters and then generates a control instruction, and instruction information is sent to the simulation mechanical calculation module. Meanwhile, the invention further discloses a specific operation method of the simulation platform. The method has the advantages of high simulation precision, customization and multi-scene rapid migration, and provides guarantee for system testing of underwater full-process task maneuverability, safety and reliability of the deep sea device.

Technologies for transitioning between two-dimensional (2D) and three-dimensional (3D) display views for video conferencing are described herein. Video conferencing applications can have multiple display views for a user participating in a video conference. In certain situations a user may want to transition from a 2D display view of the video conference to a more immersive 3D display view. These transitions can be visually jarring and create an uncomfortable user experience. The transition from a 2D display view to a 3D display view can be improved by executing the transition to a 3D display view by manipulating visual properties of a virtual camera that is employed to generate the display views.

The invention provides a three-dimensional display device and display equipment, and the three-dimensional display device comprises a display assembly which employs a plurality of pixel units for image display, and a first lens assembly which is located at one side of a light-emitting surface of the display assembly, and the first lens assembly comprises a plurality of lens units. The lens units and the pixel units are arranged in a one-to-one correspondence mode. Each lens unit comprises a first lens assembly comprising a plurality of lens units, and the first lens assembly and the pixel units of the display assembly are arranged in a one-to-one correspondence mode. Each lens unit comprises a first lens and a second lens, the design parameters of the lens units are determined or optimized according to the target angular resolution, and a plurality of refracting surfaces which are formed by the first lenses and the second lenses and are connected in series are used for carrying out primary and secondary angle adjustment on emergent light rays respectively, so that the angular resolution is effectively optimized to the target angular resolution; the direction and angle of light are accurately controlled, and the problem of crosstalk between views in the naked eye 3D display process is reduced.

The invention discloses a three-dimensional light field display system with an adjustable angular resolution, which relates to the field of three-dimensional display, and realizes a high-fidelity and high-smoothness three-dimensional display effect through collaborative optimization of hardware and software, the hardware part comprises a micro-pitch LED, a diaphragm liquid crystal screen and a high-resolution LCD liquid crystal screen, and the micro-pitch LED, the diaphragm liquid crystal screen and the high-resolution LCD liquid crystal screen are arranged in the micro-pitch LED, the diaphragm liquid crystal screen and the high-resolution LCD liquid crystal screen respectively. The software part comprises a depth detection algorithm, a light control coding algorithm, a diaphragm coding algorithm and a disparity map synthesis algorithm, and through combination of hardware and software, the system can accurately regulate and control the number of light rays diverging to different directions by different body pixels according to different display information, so that the three-dimensional visual experience of a user is remarkably improved.

The present application relates to the field of imaging effect testing, and discloses a three-dimensional imaging effect testing system and method, a device and a storage medium. The system (100) comprises: a head model (101), a binocular camera (102) provided at a binocular position of the head model (101), and a computing component (103) connected to the binocular camera (102). The binocular camera (102) is used for capturing a three-dimensional visual image (13) presented by a three-dimensional display device (104) to obtain a first left-eye image (111) and a first right-eye image (121). The computing component (103) is used for outputting imaging effect information of the three-dimensional display device (104) on the basis of the first left-eye image (111) and the first right-eye image (121). The solution can evaluate the imaging effect of the three-dimensional display device by means of objective data.

A naked-eye three-dimensional (3D) display device is provided. The naked-eye 3D display device comprises: a display component, comprising an array of display units; and a viewing angle regulator, comprising an array of microprism blocks. The microprism blocks are divided into a plurality of groups, and an angle combination of a first angle and a second angle of each of the microprism blocks is preset so that outgoing lights of the same group of microprism blocks converge into the same viewpoint, and outgoing lights of different groups of microprism blocks converge into different viewpoints. Hence, a plurality of different viewpoints are formed by setting angles of inclined surfaces of the microprism blocks, thereby seeing different 3D display effects from different viewing angles.

The invention discloses a real-time rendering and stereoscopic display method and device suitable for 3D light field interaction, and relates to the technical field of 3D light field display. A paintbrush module is used for space painting; capturing a drawing track of the paintbrush module through a space positioning module; a real-time rendering module is used for mapping the space coordinates through which the drawing track of the paintbrush module passes into corresponding 3D light field pixel coding coordinates, and 3D light field pixel coding is carried out at the positions corresponding to the obtained 3D light field pixel coding coordinates; and the three-dimensional display module displays a three-dimensional image drawn by the paintbrush module according to the coordinates of the coded 3D light field pixels obtained by the real-time rendering module and the pixel information. According to the method, the coordinates are mapped to the sub-pixels of the display directly according to the coding principle so as to achieve the three-dimensional display effect of real-time rendering, dense viewpoint rendering does not need to be carried out, the implementation method is simple, and the rendering time is saved.

The invention provides a high-precision integrated imaging 3D salient target detection method with texture features, and the method comprises the steps: obtaining four-dimensional light field data, carrying out the high-precision salient target detection of a micro-image array, carrying out the texture feature compensation of a salient micro-image array, and carrying out the three-dimensional reconstruction of a high-precision salient micro-image array with texture features. According to the method, collected four-dimensional light field data is used for generating a micro-image array, the micro-image array is used as input of high-precision salient target detection, cross-regional global salient features are fully mined through recombination folding operation and cyclic coding and decoding, a high-precision salient micro-image array is generated, and then a layered texture feature compensation method is used for realizing high-precision salient target detection. According to the method, the texture features of the region salient micro-image array and the edge salient micro-image array are respectively restored and generated, and finally three-dimensional reconstruction is performed on the high-precision salient micro-image array with the texture features by means of the lens array, so that a subsequent computer vision task is effectively simplified, and fine and colorful three-dimensional display is provided for a salient target.

The invention provides a system and a method for realizing large-view-angle super-multi-view three-dimensional display, and the system comprises a backlight module which is used for generating multi-directional collimation backlight; and the display panel is used for loading the coded viewpoint image sequence and the metasurface array with multi-angle polarization response and / or multi-angle incidence response, receiving intensity information of each viewpoint image, and performing phase and / or amplitude modulation on the linear polarization components with different polarization angles and / or the light rays with different incidence angles, so as to obtain the image intensity information of each viewpoint image. And finally, the light rays are diffracted, propagated and converged to different viewpoints through the metasurface array. Wherein the size of the metasurface nanostructure is matched according to a phase-amplitude-nanostructure size lookup table (LUT) method. Compared with cylindrical lens type super multi-view three-dimensional display, the system can control the phase and the direction of light with high precision; compared with a metasurface array responded by a single polarization angle or a single incidence angle, the metasurface array has the advantages that the flexibility and the degree of freedom of design are improved, and three-dimensional display with higher resolution and larger visual angle can be realized.

The invention discloses a visual training method, system and device for myopia prevention and control and correction based on a naked-eye 3D display, and a storage medium, relates to the technical field of three-dimensional image generation and display control, and comprises the field of visual training of myopia prevention and control constructed on a naked-eye 3D display interface, a first visual training area and a second sensing and integrating area, in the first visual training area, through 3D interlaced pictures and videos, fine or dynamic stereoscopic vision is stimulated, front and back intersections of sight lines are adjusted, and split vision training is carried out; in the second perception and integration area, through perception, spatial positioning, binocular coordination and deep perception training, the spatial ability and response ability of eyes are stimulated; in combination with a three-dimensional display mechanism, displaying a naked eye three-dimensional image on a display, acquiring eyeball position information by adopting a human eye tracking technology, and dynamically adjusting a three-dimensional image display area; according to the method, the visual content structured organization and three-dimensional generation cooperative control is realized, and the three-dimensional display interaction matching precision is improved.

Disclosed are a naked-eye suspended three-dimensional video display method, a device, an equipment and a storage medium. The method includes: placing a single-viewpoint video file in a preset four-dimensional coordinate system based on a preset parallax, wherein the preset four-dimensional coordinate system is generated by a three-dimensional display coordinate system and a parallax coordinate axis, and the parallax coordinate axis is established based on a multi-viewpoint parameter and the three-dimensional display coordinate system; determining multiple target viewpoints in the preset four-dimensional coordinate system according to a position of the single-viewpoint video file and the multi-viewpoint parameter; rendering the single-viewpoint video file based on each target viewpoint, and obtaining a parallax file corresponding to each target viewpoint; rendering and integrating each parallax file, and obtaining a naked-eye suspended three-dimensional video; determining grating parameters according to the naked-eye suspended three-dimensional video; and displaying the naked-eye suspended three-dimensional video.