178 results about "Holographic display" patented technology

Aspects of the disclosure include a method for controlling a vehicle via a holographic interface. Aspects include detecting a request, by an occupant of the vehicle, to display a holographic user interface and instructing a holographic display device to display the holographic user interface. Aspects also include detecting an interaction between the occupant and the holographic user interface, identifying a desired action for the vehicle based on the interaction, and instructing the vehicle to perform the desired action.

The invention discloses a light field display method and system with holography as a representation medium, and the method comprises the following steps: S1, collecting a multi-view image of a target scene, carrying out the coding of the multi-view image, and generating a light field tensor containing space and angle information; s2, mapping the light field tensor in the step S1 into a two-dimensional space phase diagram; s3, converting the two-dimensional space phase diagram in the step S2 into a modulation diagram used for driving a spatial light modulator; and S4, driving the spatial light modulator to perform light wavefront modulation according to the modulation graph in the step S3, and reproducing the image of the target scene through optical diffraction. According to the invention, integration from dynamic scene information acquisition to high-quality three-dimensional image reproduction is realized, a low-redundancy and high-fidelity processing link is realized, and the efficiency and quality of holographic display are greatly improved.

A method, apparatus, and computer-readable medium for sensor-based application deployment with holographic output, including executing a sensor analysis application configured to interface with one or more hardware sensors at the local deployment site and generate result data based at least in part on data captured by the one or more hardware sensors, transmitting holographic display instructions to a holographic display device at the local deployment site, the holographic display instructions being determined based at least in part on one or more of the sensor data or the result data, and transmitting the result data to a remote server over the computer network, wherein the remote server is configured to identify one or more communications channels and transmit one or more alerts over the one or more communications channels based at least in part on the received result data.

The invention provides an interactive three-dimensional holographic display method for a smart farm, and relates to the technical field of smart agriculture and holographic visualization. Comprising the following steps: firstly, performing multi-angle aerial photography in different growth stages of a rice field through an unmanned aerial vehicle to collect image data; processing the data by using a three-dimensional reconstruction algorithm, and constructing a three-dimensional model library of the rice field; on the basis, a voice interaction module is integrated to a visual platform, so that a user can select and switch models and inquire growth information through voice control; further converting the selected three-dimensional model data into structured data suitable for holographic reconstruction, and generating a high-fidelity digital hologram by applying a complex-valued convolutional neural network point cloud gridding algorithm; and finally, performing optical reconstruction on the hologram by driving holographic display equipment. According to the method, the limitation of a traditional two-dimensional image in space and time sequence expression is overcome, dynamic visualization of the rice field growth process is achieved, and the monitoring and decision-making effects are improved.

The invention discloses a pure phase hologram coding method based on an unsupervised learning neural network, and belongs to the technical field of information optics, and the method comprises the steps: obtaining and preprocessing an original target image, taking the intensity of the original target image as the amplitude, and constructing a complex amplitude matrix through combining with an initial phase; randomly selecting parameters from the wavelength training table and the propagation distance training table, and propagating the complex amplitude matrix by adopting an angular spectrum diffraction algorithm to generate a complex amplitude hologram; inputting the hologram into a POH-Net deep neural network model, extracting features and mapping the features into a pure phase hologram; and according to the pure phase hologram, reconstructing an image by using reverse angular spectrum propagation, and optimizing network parameters by using an Adam optimizer by taking the loss between the amplitude of the image and the amplitude of the original target as a loss function until convergence. The method supports rapid pure phase hologram generation in complex scenes of multiple wavelengths, multiple distances and the like, and provides effective technical support for practical application of holographic display and a high-performance CGH system.

The invention discloses a three-dimensional vector holographic display device based on a medium metasurface and a display method. The three-dimensional vector holographic display device comprises a substrate and a nano structure unit on the substrate, the nano-structure units are arranged on the substrate according to specific phase distribution to form a nano-structure unit array; when light waves enter the three-dimensional vector holographic display device, the light waves are modulated by the nanostructure units, transmitted light waves are emitted through a plurality of independent space channels, adjustable patterns of different polarization states can be generated on a plurality of planes in a combined mode, and three-dimensional vector display is achieved. According to the invention, longitudinal regulation and control of amplitude, phase and polarization of light waves can be realized in a broadband range, super-surface display is expanded to a three-dimensional vector form from a two-dimensional scalar form, and the method can be applied to the fields of high-capacity optical storage, optical information encryption, quantum optical technology and the like.

The application discloses a substation maintenance system determination method, system, electronic equipment and storage medium. The method comprises the following steps: determining the power engineering information model corresponding to the current substation according to the environment information of the environment to which the current substation belongs; determining the device model information base corresponding to the current substation according to each power device, the power device identifier and the device association information of the corresponding power device located in the environment; determining the holographic display and operation and maintenance detection system for displaying the current substation and each power device located in the current substation; and determining the maintenance system applied to the substation based on the power engineering information model, the device model information base and the holographic display and operation and maintenance detection system, so as to simulate the maintenance of the power device based on the maintenance system. Based on the above technical scheme, the problem that the existing scheme cannot simulate the maintenance scheme when the power device is maintained and repaired, thereby causing high maintenance cost, long time and poor efficiency is solved.

The application provides an orbital angular momentum and wavelength dual multiplexing polarization sensitive zooming super lens based on an orbital angular momentum and wavelength dual multiplexing polarization sensitive zooming super lens, characterized in that the super lens is composed of a silicon dioxide substrate layer and a silicon elliptical nanometer column medium layer. Through an orbital angular momentum topological charge number orthogonality and wavelength selectivity dual multiplexing mechanism, combined with a polarization sensitive design, a geometric phase regulation mechanism, the silicon elliptical nanometer column array is optimized through size and rotation angle, 0-2pi full phase coverage is realized, different orbital angular momentum modes, different wavelengths and left-handed / right-handed circularly polarized incident light are precisely demultiplexed in a 400-700nm visible light band, multi-channel independent zooming can be realized, and the focusing efficiency is greater than or equal to 65%. The application solves the defects of single zooming function, limited channel capacity and poor polarization compatibility of the traditional super lens, has compact structure and high integration, and can be widely applied to the fields of miniature imaging systems, optical communication, holographic display and the like.

This application relates to a holographic display device comprising a backlight unit and a spatial light modulator, wherein the backlight unit is used to emit light. The spatial light modulator includes a plurality of pixels and a color filter layer comprising a plurality of color filter groups. The pixels are arranged in a zigzag pattern and configured to modulate at least one of the amplitude and phase of the light. Each of the color filter groups includes a first subgroup, a second subgroup, and a third subgroup, the first subgroup including a plurality of first color filters, the second subgroup including a plurality of second color filters, and the third subgroup including a plurality of third color filters, and each pixel is aligned with one of the first, second, and third color filters of the color filter layer.

The application relates to a polarization holographic multiplexing display system and method based on an acousto-optic modulator, wherein a beam splitter is arranged in front of a spatial light modulator; a laser, a first linear polarizer and the beam splitter are sequentially arranged on an optical path of the laser; a first lens, a pinhole, a second lens and a first polarization grating are sequentially arranged on a reflection optical path of the beam splitter; four circularly polarized lights are arranged behind the first polarization grating; a reflecting mirror, an acousto-optic modulator, a third lens and an image sensor are sequentially arranged on an optical path of a first light beam; a second polarization grating, a second linear polarizer and an image sensor are sequentially arranged on optical paths of a second light beam, a third light beam and a fourth light beam. The application can obtain three kinds of reconstructed images with different effects at different reconstruction distances, and has a good application prospect in the fields of holographic display, holographic storage and the like.

Systems and methods of virtual reality or augmented reality (VR / AR) visualization of 3D medical images using a VR / AR visualization system are disclosed. The VR / AR visualization system includes a computing device operably coupled to a VR / AR device, and the VR / AR device includes a holographic display and at least one sensor. The holographic display is configured to display a holographic image to an operator. The computing device is configured to receive at least one stored 3D image of an anatomical structure of a subject and at least one real-time 3D position of at least one surgical instrument. The computing device is further configured to register the at least one real-time 3D position of the at least one surgical instrument to correspond to the at least one 3D image of the anatomical structure of the subject, and generate the holographic image including the at least one real-time position of the at least one surgical instrument overlaid on the at least one 3D image of the anatomical structure of the subject.

The invention discloses a laser decoherence and holographic display speckle noise suppression system and method based on controllable fog scattering. The system comprises a laser light source module, an optical shaping module, a fog scattering module and a holographic display module which are arranged in sequence. The fog scattering module generates a scattering medium layer composed of micron-sized fog drops in an ultrasonic atomization or airflow disturbance mode, so that the space and time coherence of the collimated laser is reduced under the action of multiple times of scattering, and therefore speckle noise in holographic display imaging is effectively restrained. By adjusting the particle size distribution, the concentration and the disturbance frequency of the fog drops, continuous controllability of the decoherence intensity can be achieved, and the imaging brightness and the imaging definition are both considered. The system is simple in structure and high in compatibility, and can be directly embedded into an existing computer-generated holographic display system without an additional optical modulation device; and meanwhile, the method has the advantages of low cost, high real-time performance, suitability for a multiband laser system and the like, and is suitable for the optical fields of holographic display, laser projection, interference measurement and the like.

The invention discloses a full-space switchable nanoimprint and holographic display method based on a metasurface, and belongs to the field of micro-nano optics and holographic display. According to the metasurface-based full-space switchable nanoimprint and holographic display method, the metasurface used for achieving full-space switchable nanoimprint and holographic display is composed of nano antennas of different geometric dimensions, and the geometric dimensions and the arrangement mode of the metasurface are determined through an amplitude constrained phase holographic optimization algorithm; the amplitude distribution of the light field passing through the metasurface is restrained into binary image distribution in a real space, and holographic reconstruction is carried out in a wave vector k space. According to the sensitivity of the metasurface to the wavelength of incident light, three different optical modulation modes are realized under three wavelengths; the wavelength sensitivity of the metasurface is utilized to modulate a reflected light beam and a transmitted light beam under different incident light wavelengths, so that full-space switchable nanoimprint and holographic display are realized, and the metasurface can be applied to the fields of optical nanoimprint, counterfeiting prevention, optical switches, optical communication, display and the like.

A holographic media display device with an exterior, including multiple light-emitting displays that each configured to output images, at least one semi-transparent reflector, each reflector configured to receive images from at least one of the displays, to create a hologram display proximate the reflector, control electronics configured to store image media and transmit the image media to the light-emitting displays, and exterior user controls.

Three-dimensional reconfigurable vector holographic double-layer cascade super device, design method and equipment belong to the field of holographic technology, solve the problem that reconfiguration of incident wave front often involves changing light source or polarizer operation, which is not only inconvenient but also cannot realize fast switching. The device includes: a hybrid cascade of radiative super surface and birefringent super surface, the intensity and polarization response of hologram in three-dimensional space is reconfigurable and highly customized. The rotatable radiative super surface can be used as an incident wave front modulator to excite the non-rotatable birefringent super surface. By introducing a gradient descent optimization inverse design method, numerical analysis and experimental verification of three-dimensional reconfigurable vector holography are demonstrated in the microwave region. The present application is suitable for integrated encryption devices and holographic display super devices.

A holographic display includes a light source configured to emit incoherent light, a spatial light modulator (SLM) disposed at a Fourier plane of the light source and configured to modulate the incoherent light and emit the modulated incoherent light as diffused light, and at least one lens disposed downstream of the spatial light modulator and configured to focus the modulated incoherent light, and the spatial light modulator receives an RGB-D image signal and converts the incoherent light array incident from the light source into a first light, which is a coherently-reconstructed incoherent sum (CRIS) for implementing a 3D hologram.

This application discloses a holographic capsule and a holographic gashapon machine. The holographic capsule includes a lid, a holographic display screen, a display space chamber, a light guide assembly, a control assembly, and a capsule body. The lid, holographic display screen, display space chamber, and capsule body are sequentially and fixedly connected. The display space chamber, light guide assembly, and control assembly are all located inside the capsule body. The holographic display screen is positioned between the lid and the front of the display space chamber, while the light guide assembly and control assembly are located on the back of the display space chamber. The control assembly controls the light guide assembly and the holographic display screen based on the gashapon information from the gashapon machine, displaying a holographic image corresponding to the gashapon information on the holographic display screen. In this application, when staff replace gashapon capsules, compared to replacing physical displays, only the gashapon information of the gashapon machine needs to be adjusted to obtain the corresponding holographic image based on the holographic capsule of this application. Therefore, it can effectively reduce labor costs and improve replacement efficiency.

The invention provides a semantic rasterization geometric occlusion elimination method suitable for dynamic interactive holographic display, and relates to the technical field of computer generated holography (CGH), and the method comprises the steps: obtaining three-dimensional point clouds, carrying out the grouping of the three-dimensional point clouds based on semantic tags, projecting the three-dimensional point clouds to a hologram plane, and carrying out the grid division, calculating the average depth of each grid, carrying out semantic shielding judgment based on the average depth, determining visible grid units, optimizing shielding boundaries, retaining shielded points around the boundaries of the visible grid units, and generating a complete scene hologram based on the optimized visible grid units. According to the method, efficient and accurate occlusion relation updating and artifact elimination are realized through semantic grouping, rasterizing depth calculation, occlusion judgment and boundary optimization.

In a first aspect, the invention relates to an optical arrangement (1, 12) for a diffractive display. Said display has, in sequence along a direction of extent, a first reflective diffraction grating (15), a polarisation modulator (16), a second reflective diffraction grating (17) and a polarisation filter (18) for the first polarisation, the second polarisation being a transmission polarisation. The polarisation modulator (16) is configured to convert, at least in part, a portion of light having a first linear polarisation and a portion of light having a second polarisation, perpendicular to the first polarisation, into one another, the portions depending on the angle of incidence of the light on the polarisation modulator (16). The second reflective diffraction grating (17) is configured to diffract light with a first angle of incidence on the diffraction grating at least partially in the direction of the first reflective diffraction grating (15) with a first angle of emergence, and the first reflective diffraction grating (15) is configured to diffract diffracted light from the second reflective diffraction grating (17) at least partially with a second angle of emergence in the direction of the polarisation filter (18). The portion of the light which is converted by the polarisation modulator (16) from the first polarisation to the second polarisation or, conversely, from the second polarisation to the first polarisation is not the same for the second angle of emergence as for the first angle of emergence. Further aspects of the invention relate to a display device having the optical arrangement.

The utility model relates to the technical field of holographic display equipment, in particular to a transparent sphere display device with an embedded holographic fan, which comprises a transparent sphere and the holographic fan fixedly mounted in the transparent sphere, a straight mounting rack is arranged in the transparent sphere, the holographic fan is fixedly mounted on the mounting rack, and the holographic fan is fixedly mounted on the mounting rack. The exterior of the transparent ball body is connected with a suspension supporting mechanism used for suspending or supporting the ball body. According to the utility model, the transparent ball body is arranged, and the suspension supporting mechanism is arranged outside the transparent ball body, so that the transparent ball body can be suspended or supported through the suspension supporting mechanism, and can be conveniently displayed in various scenes; meanwhile, the mounting frame extending into the transparent ball body is arranged on the suspension supporting mechanism, so that the holographic fan can be arranged in the transparent ball body through the mounting frame, the interior of the transparent ball body can display holographic pictures under the action of the holographic fan, and a good display effect is achieved.

The present invention (also referred to as “method and system for displaying ball placement location in screen golf or hybrid golf game”) is a technology that implements a teeing area and ball location for each hole to enable exercise in conjunction with actual golf and indoor screen golf, including an omitted section from the teeing ground to a point before the landing point of the second or third ball, and obstacles such as the actual green and surrounding bunkers, rough, and hazards in indoor and outdoor hybrid golf. The invention relates to a golf system that displays the landing position of a ball on the teeing ground of an indoor or outdoor practice range using a laser beam (which is also referred to as “a ball placement position at a corresponding location using a laser projection device, video projector, or holographic display device, by converting virtual ball landing point coordinates calculated based on the player’s shot result into actual playing space coordinates) and to the design and method of use thereof. The present invention provides a virtual-reality linked golf interface technology that specifies the position of a player's subsequent shot by synchronizing the results of a virtual golf simulation with the physical coordinates of an actual playing space.

The invention discloses a heterogeneous data display method and system taking holography as a medium, and the method comprises the following steps: S1, collecting point cloud data and light field data of a real three-dimensional scene, and carrying out the physical registration and fusion of the point cloud data and the light field data, generating a composite structure-radiation tensor containing spatial structure information and directional illumination intensity information; s2, mapping the composite structure-radiation tensor in the step S1 into a complex wavefront tensor, wherein the complex wavefront tensor comprises an amplitude distribution diagram and a phase distribution diagram; s3, mapping the complex wavefront tensor obtained in the step S2 into a target view angle hologram of a current observation view angle of a user; and S4, mapping the target view angle hologram in the step S3 to a three-dimensional holographic display device for display. According to the heterogeneous data display method and system taking holography as a medium, the technical fault between traditional three-dimensional data modeling and display is broken through.

The utility model discloses a large-area three-dimensional (3D) holographic display layout aromatherapy humidifier which comprises an aromatherapy humidifier body, a 3D holographic display module is arranged on the front face of the aromatherapy humidifier body, and a loudspeaker module is arranged in the aromatherapy humidifier body. The fixed end of the supporting base is connected with the aromatherapy humidifier main body, so that the aromatherapy humidifier main body is fixed. The multifunctional air conditioner integrates various functions of aromatherapy, humidification, sound equipment, visual display and the like, not only can meet the requirements of a user on air humidity adjustment and fragrance diffusion, but also has the Bluetooth sound equipment function, can play music and realizes multi-sensory enjoyment. Meanwhile, in combination with large-area 3D holographic display, the device is more widely applied to families, offices and entertainment venues, and more scientific and modern use experience is provided.

The application discloses a real geographical space-based digital twin video holographic display method and system, reads a real-time image frame of a current moment from real-time video data, divides image texture of the real-time image frame into a texture mapping overlapping area and a non-overlapping area according to visibility and occlusion between the real-time image frame and a three-dimensional real scene model, for the texture mapping overlapping area, combines multiple historical image frames as a texture source, adopts a multi-source texture fusion algorithm based on real geographical space consistency, reconstructs a texture map of the texture mapping overlapping area, dynamically maps the texture map to a surface of the three-dimensional real scene model to obtain video-model data after texture mapping, and transmits the video-model data into a holographic display system to display holographic images according to position differences of both eyes of an observer in space. The application accurately fuses the three-dimensional real scene model with real-time video data, and realizes real, real-time and spatially synchronous three-dimensional holographic presentation of a physical scene.

The embodiment of the present application discloses a kind of nuclear power station holographic three-dimensional digital visualization management system and method.The system includes: component hierarchical module is used to divide the three-dimensional model of nuclear power station into multiple components, and each component is assigned corresponding importance;Task mode module is used to determine the mode parameters associated with the current task;Visible and hidden control module is used to receive mode parameters and the importance of component, and generate the visible and hidden control strategy of component based on the preset multidimensional mapping rule, and determine the visible state of each component in holographic display space based on importance and visible and hidden control strategy;Holographic rendering module is used to render component based on visible state, to obtain stereoscopic holographic image visible to naked eye.Through the technical scheme of the embodiment of the present application, key components are quickly filtered and displayed according to component importance, avoiding component display redundancy, and the component visible and hidden control strategy can be dynamically matched, improving the relevance of visible content and current task.

A holographic display is provided. The holographic display comprises: a light guide plate comprising a light incident part and at least one light-emitting part, and having a first surface on which the light incident part and the light-emitting part are disposed, and a second surface positioned opposite to the first surface; a light source assembly disposed adjacent to the light incident part on the first surface; a spatial light modulator disposed adjacent to the light-emitting part on the first surface and including a light modulation pixel in one-to-one correspondence with the at least one light-emitting part; and an optical layer disposed on the second surface.

A method and apparatus for filtering noise for a holographic display are provided. The noise filtering apparatus includes a first filter implemented using a volume grating for filtering DC noise in light modulated by a spatial light modulator or a second filter implemented using a volume grating or a thin-film filter, which filters high-order noise in the light.

The utility model relates to the technical field of high-voltage cabinets, in particular to a holographic sensing type high-voltage cabinet safe and convenient to control, which comprises a high-voltage cabinet body, a cabinet door, a screw rod, a transparent protective cover, a moving assembly, a holographic imaging projection screen and a holographic assembly, the cabinet door is arranged on one side of the high-voltage cabinet body, and the screw rod is arranged on the bottom surface of the inner side of the high-voltage cabinet body. A transparent protective cover is arranged on the outer side of the lead screw, moving assemblies are arranged at the two ends of the transparent protective cover, a holographic imaging projection screen is arranged on the inner side of the transparent protective cover, and a holographic assembly is arranged on one side of the holographic imaging projection screen. According to the utility model, a vivid three-dimensional image is created in a holographic imaging mode, so that the operation and state display of the high-voltage cabinet are more visual and easy to understand, an operator can monitor the state of the high-voltage cabinet without directly contacting equipment, the risk of misoperation is reduced, the working efficiency is improved, and the working efficiency is improved. And the holographic display provides more interactive and immersive user experience, so that the practical value of the high-voltage cabinet is effectively enhanced.

The invention discloses a low-voltage power distribution network uninterruptible power operation system monitoring method, which comprises the steps of distribution network uninterruptible power operation resource management, distribution network uninterruptible power operation process management, distribution network uninterruptible power operation holographic display and uninterruptible power operation intelligent auxiliary decision making, realizes whole-process monitoring of uninterruptible power operation, and improves the management level of the uninterruptible power operation of the distribution network. According to the invention, through the holographic display function module, based on statistics of various index results, whole-process monitoring of non-power-cut operation is realized, and holographic operation analysis is realized. Through implementation management and control, operation benefit analysis, resource allocation and management and bearing capacity display and comparative analysis of uninterruptible operation, an uninterruptible operation construction scale and implementation effect analysis and evaluation system is realized.

The multifunctional cultural relic display cabinet comprises a base, a semi-open type box body is installed on the base, an anti-seismic display wall is installed on the inner side of the semi-open type box body, a storage window is reserved in one side of the anti-seismic display wall, and protective glass is installed at the opening of the storage window. A box-type bearing platform is arranged on one side of the anti-seismic exhibition wall where the protective glass is located, and an interactive exhibition platform is installed above the box-type bearing platform. The beneficial effects of the utility model are that the holographic projection assembly composed of the central control screen, the optical engine cabin, the stand column, the cooling fin, the terminal interface, the holographic display stand and the power supply module is arranged, so that holographic images can be operated through the central control screen according to personal preferences in the process of viewing cultural relics, and the cultural relics can be viewed from multiple angles and all directions; the LED full-color screen can assist in explaining the historical background, the development process, the social value and the like of the cultural relics, the integration of science and technology and the cultural relics is effectively enhanced, and the interestingness of cultural relic display is improved.