299 results about "Three dimensional display" patented technology

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 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 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.

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 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.

Embodiments of the present application at least provide a method for generating a multi-viewpoint image. The method comprises: acquiring a two-dimensional image and acquiring a corresponding disparity map on the basis of the two-dimensional image; inputting the two-dimensional image and the disparity map into a neural network to obtain a three-dimensional image implicit representation, wherein the neural network comprises a compression module and an expansion module, the compression module comprises a plurality of down-sampling structures, and the expansion module comprises a plurality of up-sampling structures corresponding to the plurality of down-sampling structures; and on the basis of the three-dimensional image implicit representation, performing rendering to generate two-dimensional images and disparity maps for different viewpoints. According to the method, the neural network is used to generate the implicit representation of a three-dimensional image on the basis of the two-dimensional image and the disparity map corresponding to the two-dimensional image, and on this basis, the two-dimensional images and the disparity maps for different viewpoints are generated by means of rendering, so that a three-dimensional display device can output three-dimensional content better conforming to a real depth-of-field relationship, and thus, the method has the characteristic of flexibility and can be suitable for three-dimensional display devices with different numbers of viewpoints.

The application discloses a high-uniform seamless splicing system and a brightness adjusting method for light field display, and belongs to the technical field of light field display. The system uses a minimum display unit modular splicing architecture to realize super-high resolution display, adopts a composite microlens array to realize axial displacement of an imaging surface, covers a gap between adjacent display units through optical expansion of a pixel matrix, and eliminates parallax faults caused by physical splicing seams. The system integrates a distributed dynamic uniform light module, collects brightness data of a display area in real time, performs brightness compensation on a low-illumination area through array light source driving control, changes a light transmittance, and regulates and controls pixel-level brightness uniformity of the system. The scheme effectively solves the problems of pixel continuity loss and adjacent dimming area light coupling in high-resolution light field reconstruction. The system is widely applicable to light field three-dimensional display, and is a scheme for improving three-dimensional display effect.

The invention provides a Schiff base material of which the molecular structural formula is at least one of the following formulas: the Schiff base material not only has the luminescence characteristic of chiral molecules, but also has the photochromic characteristic of Schiff base, can have the characteristic of intersection luminescence under co-excitation of ultraviolet light and blue-green light, and can be used in a display space of three-dimensional imaging of a static body. The Schiff base material is applied to three-dimensional display of a static body, is high in stability, good in reversibility, low in excitation light source power and low in risk, and can be prepared into devices for commercial application. The invention also provides a preparation method of the Schiff base material and a static body three-dimensional display system containing the Schiff base material.

The application discloses a ground penetrating radar three-dimensional imaging display method and radar. The method comprises the following steps: making the antenna move at a constant speed in a straight line, and transmitting a pulse to the ground at each distance node; receiving the pulse reflected by the ground features to form a return signal; weighting and averaging a plurality of return signals of the same ground feature at the same distance node to form a new return signal; arranging the new return signal in time sequence to form a radar scanning data matrix; performing Fourier transform on the radar scanning data matrix to obtain a frequency spectrum; performing frequency domain filtering processing on the frequency spectrum; performing inverse Fourier transform on the filtered frequency spectrum to obtain a processed radar scanning data matrix; and synthesizing the processed radar scanning data matrix to obtain a three-dimensional display of the ground features, so that the return signal corresponding to the ground features is more prominent, the calculation amount of data filtering is greatly reduced, and the speed and accuracy of the three-dimensional imaging display are improved.

The invention relates to the technical field of unmanned aerial vehicle low-altitude perception, in particular to an unmanned aerial vehicle low-altitude perception enhanced display method, device and system, and the method comprises the steps: multi-source data real-time collection and processing, dynamic environment modeling and updating, information fusion and weight distribution, three-dimensional display content generation, and real-time interaction and intelligent assistance. Through a self-adaptive weight adjustment mechanism and a hierarchical rendering technology and in combination with an intelligent auxiliary module, the flight safety and operation efficiency in a complex low-altitude environment are improved. The multi-source sensing data can be effectively fused, the display content is dynamically adjusted, efficient interaction is achieved through gestures and voice, and the method is suitable for unmanned aerial vehicle low-altitude operation scenes.

The invention provides a Schiff base material of which the molecular structural formula is shown in the specification, and the Schiff base material has ultrafast reversible photochromic characteristic, can emit light at a light source intersection under the combined action of a photochromic light source and a ketone tautomer fluorescence excitation light source, and is a light-emitting material adaptable to three-dimensional display application. The photochromic property of the Schiff base material is stable and not prone to failure, the Schiff base material is high in transparency and light in color in media such as solutions, epoxy resin and polymethyl methacrylate, display patterns are not shielded, and the Schiff base material is high in practical value in in-vivo three-dimensional display application. The invention also provides a preparation method of the Schiff base material and a bulk three-dimensional display system containing the Schiff base material.

A three-dimensional (3D) display device including: a display unit configured to display an image; a display driver configured to display, on the display unit, a plurality of first images based on a depth component of the image and a second image based on a planar component of the image; a first lens array including a plurality of first lens elements provided at a first pitch on a rear side of the display unit; a second lens array including a plurality of second lens elements provided at a second pitch wider than the first pitch of the plurality of first lens elements on a rear side of the first lens array; a plurality of light source assemblies respectively located on rear sides of the plurality of second lens elements and including a plurality of light sources; and a light source driver.

Embodiments of the present disclosure relate to a display method, device, equipment and medium of a three-dimensional object, wherein the method comprises: obtaining a plurality of original position information of a plurality of associated three-dimensional points in a target object model, obtaining human eye position information of a human eye, and obtaining display position information of a preset display area of a picture display device; determining a plurality of projection position information of the plurality of associated three-dimensional points on the display area of the picture display device according to the plurality of original position information, the human eye position information and the display position information; and generating and rendering a projection picture of the target object model on the display area of the picture display device according to the plurality of projection position information. Thus, the projection picture of the target object model at different angles is displayed according to the position of the human eye, the stereoscopic interaction between the position of the human eye and the display of the target object model is improved, and a low-cost picture three-dimensional display effect is achieved without adding external auxiliary equipment.

This electronic device may comprise: a memory comprising at least one storage medium for storing instructions; and at least one processor comprising a processing circuit. The at least one processor is configured to: acquire a request for three-dimensional (3D) display in a state of having a connection to a plurality of display devices including a 3D display device supporting 3D display; on the basis of the acquired request for 3D display, obtain image data in a 3D format on the basis of multi-display mode information indicating that the plurality of display devices are in a multi-display mode; and transmit, to the 3D display device among the plurality of display devices, an image signal including the image data enabling the 3D display device to display a 3D image corresponding to the image data, wherein the multi-display mode is one among a display duplication mode and a display expansion mode.

The invention provides a display device. In response to the display panel, the display panel is configured to work in a two-dimensional display mode, and the refractive indexes of the two branches in each sub-pixel are the same; the display panel is configured to work in a three-dimensional display mode in response to the display panel, the two subsections of the same sub-pixel have different refractive indexes, and in the same basic pixel unit, the subsections corresponding in position in all the sub-pixels have the same refractive index. And in the 2D mode, the two subsections of the sub-pixels are combined for single-pixel display. And in the 3D mode, the two branch light rays of the sub-pixels are refracted to different directions to form parallax. And meanwhile, the number of the sub-pixels in each basic pixel unit is fixed, so that stable viewpoint resolution is ensured, and the viewpoint resolution of 3D display can be improved.

The invention relates to a method and a system (10) for displaying a viewing direction-dependent view for a predetermined location. The predetermined location, including its surroundings, is captured from one or more viewing directions (15), with or without one or more objects (12) at the location. One or more objects (12) at the predetermined location are then obscured by a three-dimensional display device (20). Based on the images captured in the preparation phase (200), a display model is calculated. This model allows the predetermined location, including its surroundings, to be displayed using the light-activated elements (22) of the display device (20) for each of the one or more predetermined viewing directions (15) or for each viewing direction (15) within the one or more predetermined solid angles. In the absence of one or more objects (12), the location can be displayed from the respective viewing direction (15). In an application phase (206) a momentary viewing direction (15) is determined, a representation of the predetermined location together with its surroundings in the absence of one or more objects (12) is determined from the momentary viewing direction (15) by means of the display model and is displayed by means of the light-active elements (22) of the display device (20) in relation to the momentary viewing direction.

The application discloses a display control method of three-dimensional scene data and related devices. The method comprises the following steps: obtaining a three-dimensional display instruction in a three-dimensional display device, indicating that three-dimensional scene data of an application program in the three-dimensional display device needs three-dimensional display; collecting screen collection content of the three-dimensional scene data from a global screen angle of the three-dimensional display device; analyzing a content format of the screen collection content to obtain a first content format; when the first content format is a left-right side-by-side format, i.e., a content format in which content for a left eye and content for a right eye are presented side by side, the three-dimensional display device calls a three-dimensional display module of the three-dimensional display device, and realizes three-dimensional display based on the screen collection content to obtain a three-dimensional display result. That is, the three-dimensional display device itself realizes three-dimensional display of screen collection content of three-dimensional scene data of an application program collected by the three-dimensional display device.

A three-dimensional display device includes: a first image display that outputs linearly polarized first image light; a second image display that outputs linearly polarized second image light; a first retardation plate that modulates and converts the first image light output from the first image display to first elliptically polarized light; a second retardation plate that modulates and converts the second image light output from the second image display to second elliptically polarized light that rotates in a direction identical to a rotation direction of the first elliptically polarized light; and a half mirror that transmits the first elliptically polarized light, converts the first elliptically polarized light to first circularly polarized light that rotates in a direction identical to the rotation direction of the first elliptically polarized light, reflects the second elliptically polarized light, and converts the second elliptically polarized light to second circularly polarized light that rotates in a direction opposite the rotation direction of the second elliptically polarized light.

The present application relates to the field of computational imaging and three-dimensional display, specifically to a multi-domain voxel reconstruction three-dimensional display method and device, comprising the following steps: S1: voxel layer feature extraction and convolution reconstruction: using convolutional neural network to extract features and repair structure of input voxel layer; S2: voxel layer fusion based on learning weight: through learning weight distribution and edge compensation mechanism, realizing natural interlayer transition and structure enhancement; S3: in focus direction, perception fusion weight modeling: according to observation focus depth and depth difference of each voxel layer, automatically distributing fusion weight, making focusing layer clear and defocusing layer smooth attenuation, thereby strengthening spatial stereoscopic effect; S4: multi-domain fusion and adaptive compensation output: in the fusion stage, introducing depth residual term and spatial consistency constraint, realizing cross-layer smooth transition and overall brightness self-balancing.

This application provides a display device and a three-dimensional image display method. The display device includes a backlight module, a display panel, an electrically controlled phase delay device, and a time-division multiplexing control circuit. The time-division multiplexing control circuit is configured to control the display panel to alternately display left-eye parallax images and right-eye parallax images at a preset frequency, and is configured to synchronously control the electrically controlled phase delay device to switch between a first phase delay state and a second phase delay state. This causes the electrically controlled phase delay device to generate a quarter-wavelength positive phase delay in the first phase delay state and a quarter-wavelength negative phase delay in the second phase delay state, thereby converting the linearly polarized light output from the display panel into circularly polarized light with opposite rotation, achieving precise separation of the left and right eye images. The technical solution of this application reduces crosstalk between the left and right eye images and improves the resolution and clarity of the three-dimensional display.

The invention provides a Schiff base photoswitch material. The chemical structural formula of the Schiff base photoswitch material is shown in the specification, wherein n is an integer from 5 to 15. The Schiff base optical switch material can have the characteristic of intersection point luminescence under common excitation of purple light and blue light, and can be used in a display space of volume three-dimensional imaging. The Schiff base optical switch material is applied to volume three-dimensional display, is high in transparency and good in stability and reversibility, and can be applied to the fields of two-dimensional, multi-security anti-counterfeiting, three-dimensional data storage and the like as a quick-response optical switch material. The invention also provides a preparation method of the Schiff base optical switch material and a volume three-dimensional display system comprising the Schiff base optical switch material.

A three-dimensional (3D) display device may comprise a display panel including a plurality of subpixels, a variable focus lens positioned in a front position of the display panel, an optical lens positioned in a front position of the variable focus lens, a gaze detector detecting a gaze of a user positioned in the front position of the display panel to generate a gaze detection signal, an object controller generating an object information signal for an object displayed on the display panel, and a focus control circuit controlling a focus of the variable focus lens based on an emission control signal, the gaze detection signal, and the object information signal.

This invention relates to the field of image processing technology, specifically disclosing an AI-based 3D reconstruction method for human organ tissue slices. The method includes: acquiring a sequence of consecutive slice images and preprocessing them to generate a tissue foreground mask; using previously registered slices as references, estimating the homography matrix through a feature matching neural network and transforming it to obtain candidate registration results; calculating the pixel correlation between the candidate and the reference foreground mask, retaining those not less than a threshold and taking the largest to form a registration slice sequence; semantically segmenting the registration sequence to obtain a target structure mask sequence, and stacking it in voxels according to the interlayer spacing to output the 3D reconstruction result. By using multi-reference registration based on foreground correlation for optimal selection, the accumulation of misregistration is suppressed, and the alignment stability is improved; post-registration segmentation and voxel stacking realize multi-structure 3D reconstruction and sub-structure display. This method enhances registration reliability and supports multi-label 3D display.

The invention provides a three-dimensional display device and an operation method thereof. The three-dimensional display device comprises an eye movement tracking device, a first processing unit, a display and a second processing unit. The first processing unit calculates coordinates of left and right viewpoints according to left and right eye image data provided by the eye movement tracking device. The display includes a plurality of light emitting units to emit a plurality of light beams and a plurality of light splitting units to distribute the plurality of light beams to a left viewpoint and a right viewpoint. The second processing unit defines a crosstalk area according to the opening angles of the plurality of light beams passing through the plurality of light splitting units and the light paths. A first light beam of the plurality of light beams distributed to a left view and a second light beam of the plurality of light beams distributed to a right view are simultaneously incident on the crosstalk region. The second processing unit compares preset gray scales of the first light beam and the second light beam and then determines correction gray scales of the first light beam and the second light beam.

Provided in the embodiments of the present disclosure are an autostereoscopic three-dimensional display apparatus and display method, and a terminal device. The autostereoscopic three-dimensional display apparatus comprises: a screen, wherein a pixel unit of the screen comprises sub-pixels in a row direction and sub-pixels in a column direction, each sub-pixel comprises three primary colors, the arrangement order of the three primary colors differs from row to row and from column to column, and the arrangement order of the three primary colors in one row is the same as that in a corresponding column; and a dual-layer liquid crystal lens, which comprises a first liquid crystal lens and a second liquid crystal lens that are stacked, wherein the operating state of the first liquid crystal lens and / or the second liquid crystal lens is switched on the basis of whether the screen is in a landscape state or a portrait state, such that the autostereoscopic three-dimensional display apparatus displays a three-dimensional image in either the landscape state or the portrait state.

This invention discloses a method, device, and medium for detecting 3D display modules. The method includes the following steps: transferring the 3D display module to a platform and powering it on; measuring and photographing the illuminance of the 3D display module through a measuring lens to obtain an illumination image; analyzing the illumination image to determine whether the 3D display patch is incorrectly pasted; if incorrectly pasted, identifying the first incorrectly pasted 3D display patch; positioning the 3D display module through a positioning lens and photographing it to obtain a positioning image; calculating the coordinates of the first 3D display patch based on the positioning image; and controlling a marking mechanism to mark the first 3D display patch based on the coordinates. This invention can automatically detect 3D display modules, accurately identify and mark incorrectly pasted 3D display patches, eliminating the need for manual inspection. It not only effectively improves detection efficiency and accuracy but also significantly increases the yield of 3D display modules and reduces production costs.

A three-dimensional display device includes a first display module to form a first floating image and a second display module to form a second floating image, and the first floating image and the second floating image partially overlap. A trompe l'oeil effect of the first floating image and the second floating image being fused to form a three-dimensional image is generated when viewed by human eyes, and three-dimensional displays can be realized.

A three-dimensional (3D) display monitor is disclosed, featuring an integrated processing chip designed to enhance real-time rendering and reduce system latency. The chip receives raw 3D image data and face tracking images, performs real-time face tracking and pixel mapping, and outputs the mapped image for display. The chip may receive direct eye center position data, bypassing face tracking images. The monitor includes functionalities including touch panel feedback, hand tracking, and automatic detection of 2D or 3D content, enabling seamless mode switching. Furthermore, the chip can convert 2D content to 3D content in real-time using a neural processing unit.

Systems and methods are described for mirroring content from a 2D display device to a 3D display device. Techniques are provided that include receiving information identifying a virtual 3D object and a first scale information, where the virtual 3D object is displayed on a 2D display device to a user using the first scale information. A second scale is then determined based on the first scale information, and a 3D representation of the virtual 3D object is displayed on a 3D display device using the second scale. Provided techniques further include receiving information identifying a first orientation information, where the virtual 3D object is further displayed using the first orientation information. A second orientation based on the first orientation information and based on a received user's location relative to the 3D display device is determined, and the 3D representation is further displayed using the second orientation.

A system includes a display device and an actuated structure mounted to the display device and configured to move the display device in a three-dimensional space. The system includes an imaging device configured to capture an image of a patient's eye during an ophthalmic procedure and display the image on a display device. The controller is configured to activate the actuated structure to maintain visibility of the display device to a surgeon performing an ophthalmic procedure. The display may be positioned based on a surgeon profile and / or a treatment plan. It may be determined whether the display is visible based on an image from a camera mounted to an imaging device, display device, or elsewhere. It may be determined whether the display is visible based on kinematic data of a support for the actuated structure and / or the imaging device.