139 results about "Holographic imaging" patented technology

The invention belongs to the technical field of underground engineering unfavorable geological disaster prediction and intelligent control, and provides a tunnel unfavorable geological physical field-hydrological field fusion holographic detection method and system. Detection information of various physical fields such as an induced electric field, a seismic electric field, a natural electric field and a hydrological field is used as a fusion data source; establishing a coupling objective function taking cross gradient inversion as a physical constraint condition; a CNN-GNN-Transform hybrid network is constructed, and multi-level feature fusion is carried out; through contribution of physical constraint conditions in a self-adaptive weight dynamic balance coupling objective function and deep learning data driving feature learning capability of a hybrid network, multi-field holographic interpretation with a hybrid deep learning model as a carrier is realized, and the fusion degree of multi-source heterogeneous data is improved. Three-dimensional holographic imaging and water gushing prediction of a water gushing disaster source can be achieved, and the accuracy of unfavorable geological disaster detection and the reliability of intelligent decision making are improved.

The invention discloses a micro-scale tin soldering device and method for ultrasonic laser composite energy field coordinated regulation and control. The micro-scale tin soldering device comprises a coordinated energy output module, a multi-physical field monitoring module, a wire feeding module, an intelligent regulation and control system and a motion platform, and a workpiece to be welded is arranged on the motion platform; the collaborative energy output module comprises a laser unit, an ultrasonic vibration unit and a focusable focus lens, the ultrasonic vibration unit comprises an ultrasonic generator, and the multi-physical field monitoring module comprises an infrared thermometer, a high-speed holographic imaging system and an acoustic impedance sensor; the high-speed holographic imaging system is used for recording brazing filler metal molten pool flowing and IMC nucleation dynamic states; the acoustic impedance sensor monitors the ultrasonic energy transmission efficiency; the intelligent regulation and control system is electrically connected with the multi-physics field monitoring module, and a multi-physics field coupling prediction model based on an LSTM neural network is arranged in the intelligent regulation and control system. According to the technical scheme, the structural design is reasonable, the energy field coupling efficiency is high, the material adaptability is high, the structure performance is controllable, the defect rate is remarkably reduced, and practicability is good.

The invention discloses a super-resolution phase reconstruction method and device, and relates to the field of digital holographic microscopic measurement. The objective of the invention is to solve the problem of low phase reconstruction precision caused by inaccurate registration and splicing of spectrum sub-apertures in existing super-resolution digital holographic imaging. According to the algorithm provided by the embodiment of the invention, accurate position distortion correction and synthesis of frequency spectrum sub-apertures can be realized, and the precision of frequency shift digital holographic super-resolution phase reconstruction is greatly improved; according to the algorithm provided by the embodiment of the invention, the dependence on the mechanical control precision is greatly reduced, the flexible frequency shift operation of any offset is supported, and the hardware cost and the experiment difficulty are reduced.

The invention relates to the field of network public opinion management and control, in particular to a cross-modal network emergency command system based on a network space model. The method comprises the following steps: acquiring a network public opinion multi-modal data stream, positioning a malicious public opinion propagation source account based on the network public opinion multi-modal data stream, and performing network space cross-layer holographic portraying based on the malicious public opinion propagation source account to generate a source account holographic portraying information set; on the basis, multi-modal feature extraction and network space behavior model construction are carried out on hidden negative guidance behaviors, and an implicit negative information propagation mode model is generated; on the basis, potential malicious account active tracking and risk propagation network mining are carried out, and a potential risk propagation network information set is generated; on the basis, multi-level differential intervention strategies are generated and executed, and a network public opinion intervention strategy instruction set is generated. In the network public opinion emergency command process, pollution of false information to network space is reduced, and construction of healthy and sustainable network ecology is assisted.

The present invention relates to an automatic real-time label-free holography-activated sorting of the cell's technique. The technique provides high-discriminative power on the level of the individual cell. The technique includes rapid automated cell processing during cell visualization and flow, with high discriminative power on the level of the individual cell. The technique may be useful in detection of cancer and to identify different stages of oncogenesis.

The application relates to an online monitoring device and method for microelectrodes, and belongs to the technical field of special machining.The online monitoring device is composed of a coaxial holographic imaging module, an LED backlight imaging module, a motion control module, an image acquisition card, a laser power controller and an LED brightness controller.The LED backlight imaging module is used for positioning the microelectrode image; the coaxial holographic imaging module is used for holographic interference imaging of the microelectrode; based on a holographic reconstruction algorithm, electrode profile information is obtained, and the electrode loss degree is judged.The coaxial holographic imaging module and the LED backlight imaging module switch the positions of the reflecting mirrors through the motion control module to realize control of different imaging modes; the collected images are input into a PC through the image acquisition card, image algorithm analysis is carried out, and the microelectrode loss degree is judged.The application realizes online monitoring of the microelectrode loss.

This invention discloses a holographic autofocusing method based on spatial-frequency domain hierarchical feature extraction. The proposed holographic autofocusing scheme, employing a dual-branch sensing strategy in both the spatial and frequency domains, achieves significant beneficial effects. This invention utilizes statistical information for dynamic soft-threshold filtering and employs a dual-branch architecture to explicitly decouple high-frequency diffraction residual information in the spatial and frequency domains. The synergistic effect of these two approaches enables the network to adaptively suppress background interference, thereby accurately capturing frequency features closely related to the defocus state and achieving high-precision, high-stability autofocusing in holographic imaging scenarios.

The application provides a kind of deep learning method for nonlinear holographic imaging, by acquiring the corresponding real nonlinear holographic image of paired structure contour image, constitute data training set;Image generation model based on conditional generative adversarial network is constructed, including preprocessing module, generator and discriminator, the input structure contour image is preprocessed by preprocessing module, and the predicted holographic image is generated, the real holographic image and the predicted holographic image are respectively spliced with the corresponding structure contour image and then input to the discriminator to distinguish true and false;A hybrid loss function for constraining the difference between the generated image and the real image is constructed;Get the trained image generation model;The structure contour image to be predicted is input into the trained image generation model, and a nonlinear holographic image is obtained;This method can realize more sufficient feature extraction and texture learning, and can efficiently realize high-precision prediction and generation of target holographic image.

The present application belongs to the technical field of underground engineering unfavorable geological disaster prediction and intelligent control, and provides a tunnel unfavorable geological physical field-hydrological field fusion holographic detection method and system, which uses multi-physical field detection information such as induced electric field, seismic electric field, natural electric field and hydrological field as fusion data source, establishes a cross gradient inversion as a coupling objective function with physical constraint conditions, constructs a CNN-GNN-Transformer hybrid network for multi-level feature fusion, dynamically balances the contribution of the physical constraint conditions in the coupling objective function and the deep learning data-driven feature learning ability of the hybrid network through adaptive weight, realizes multi-field holographic interpretation based on the hybrid deep learning model, improves the fusion degree of multi-source heterogeneous data, can realize three-dimensional holographic imaging and water gushing prediction of sudden water gushing disaster source, and improves the accuracy of unfavorable geological disaster detection and the reliability of intelligent decision-making.

The application discloses a holographic multiplexing imaging method based on Kramers-Kroning relation, relates to the field of high-throughput multi-channel multiplexing digital holographic imaging technology, and is based on the quantitative phase measurement and the improvement of the space-bandwidth product; the holographic multiplexing imaging method based on Kramers-Kroning relation directly detects the complex amplitude field without any constraint; in addition, the holographic multiplexing imaging method can allow the target spectrum and other spectra to overlap without sacrificing the space-bandwidth and the time resolution, can realize the quantitative optical imaging without scanning, and provides a new way for significantly improving the application of digital holography and quantitative optical imaging.

The invention provides a distributed formation SAR satellite group multi-angle scattering characteristic spectrum measurement system and method. The distributed formation SAR satellite group multi-angle scattering characteristic spectrum measurement system comprises a satellite formation subsystem, a load collaborative observation subsystem, a signal processing subsystem and a spectrum construction subsystem, the satellite formation subsystem is used for constructing an initial satellite formation and dynamically reconstructing the initial satellite formation; the load collaborative observation subsystem is used for collaborative observation of multiple satellites on the same area; the signal processing subsystem is used for realizing distributed holographic imaging processing of multi-satellite echo signals; and the map construction subsystem is used for constructing a multi-dimensional space map. According to the invention, through the concentric ring-spiral composite formation configuration and in combination with the real-time dynamic optimization algorithm, continuous full coverage of the azimuth angle and the pitch angle of the three-dimensional space of the ground target is realized, and highly coincident irradiation of multi-star radar beams on the same ground feature area is ensured; the bottleneck of scattering feature capture caused by traditional formation angle discretization is fundamentally broken through.

This application provides a dynamic tool setting device and method for diamond micro-end milling cutters, relating to the field of precision and ultra-precision machining technology. The method includes the following steps: acquiring a time-series pulse sequence of time-division multiplexing images; and performing tool setting detection on the diamond micro-end milling cutter based on the time-series pulses. This application utilizes the diffraction interference imaging principle of diamond micro-end milling cutters under coaxial laser illumination, employing object-side telecentric vision imaging to ensure a fixed holographic image magnification and microscopic imaging accuracy. By setting the camera trigger acquisition pulse through an external trigger controller via a host computer, the rotating image of the diamond micro-end milling cutter is sampled in a time-division multiplexing manner, achieving full-contour holographic imaging of the diamond micro-end milling cutter under rotating conditions. Simultaneously, by designing a downsampling holographic autofocus algorithm in holographic image processing, the computational load for image holographic reconstruction is reduced, accelerating the tool setting calculation efficiency and providing high-precision tool setting technology support for ultra-precision micro-milling.

This invention discloses a method for preventing accidental touch interaction based on media-free holography, specifically relating to the field of media-free holographic anti-accidental touch interaction. The method includes generating a media-free holographic image using a media-free holographic imaging device. The media-free holographic image contains a semantic interactive entity, which is composed of multiple interactive voxels or interactive planes. A camera mounted on the media-free holographic imaging device captures a facial image, and based on the facial image, the method identifies the facial position, facial orientation, facial size, and eye distance parameters to determine the spatial range of the face within the media-free holographic image. When the face is within the spatial range, a first duration is determined for the face to be within the spatial range. By introducing a pre-operation confirmation mechanism into a multi-level decision chain involving facial recognition, gaze tracking, spatiotemporal intent determination, and pattern comparison, the method verifies the user's true intent before the interaction is triggered.

The present disclosure provides a medium-free holographic imaging device and a control method thereof. The medium-free holographic imaging device comprises a medium-free holographic imaging assembly for generating a suspended medium-free holographic image in a preset imaging area, the medium-free holographic image comprising a plurality of user-operable interactive areas; and a sensor assembly comprising a plurality of first sensors for generating first perception data about a performing subject when the user performs a subject operation on the interactive area of the medium-free holographic image, wherein the emission beams of the plurality of first sensors are parallel to the medium-free holographic image and the distance between the emission beams and the medium-free holographic image is less than a threshold value. By configuring the first sensors, the position determination of the performing subject operating the interactive area in the three-dimensional space can be converted into the two-dimensional position determination of the interactive area in the medium-free holographic image, the position of the interactive area can be determined without a complex gesture recognition model, the computational complexity is reduced, and the interaction efficiency is improved.

The present application relates to a kind of methods for eliminating the speckle of computer holography using phase probability control optimization algorithm, the key parameters of computer holographic image, the key parameters of computer holographic image include root mean square error of computer holographic image, standard deviation and optical efficiency, update cost function;Update mask phase, based on mask phase, use Rayleigh-Sommerfeld diffraction integral to calculate the diffraction from input surface to target surface, determine whether the holographic image of output surface contains speckle;If it contains speckle, the next iteration is carried out, and finally the holographic image without speckle is obtained.The present application can effectively eliminate the inherent speckle existing in computer holographic imaging, design and process the phase device for eliminating speckle using the proposed holographic optimization algorithm, and use it for holographic lithography, expand the practical application scenarios of computer holography technology.

In one embodiment, a device transmits data characterizing a holographic image to a physical environment. A visible rendering of the holographic image is created in the physical environment. The device uses a reasoning engine to make an inference regarding a state of the physical environment based on sensor data captured in the physical environment indicative of one or more real-time characteristics of the physical environment. In response to the inference, the device adjusts the holographic image. Then, the device transmits data characterizing the adjusted holographic image to the physical environment, and a visible rendering of the adjusted holographic image is created in the physical environment.

This invention belongs to the field of digital holographic imaging and artificial intelligence technology, specifically a holographic particle recognition method based on EFPFNet. While maintaining the traditional holographic optical path structure, this invention addresses the problems of low target contrast, blurred edges, and strong background interference in micro-nano particle holograms. Unlike the traditional approach of directly transferring general target detection models, it proposes a neural network architecture specifically for holographic image features: employing an edge feature convolution (EFC) module and a particle focusing mechanism (PFM) module to enhance the perception of weak particle diffraction features and suppress complex background noise, respectively; and using simulation data generated based on a physical model as the training set, effectively solving the problem of scarce real labeled data. This method possesses high detection accuracy, high robustness, and excellent generalization ability, and can be applied to target detection scenarios such as biomedicine and industrial inspection without significantly increasing optical hardware costs or detection time.

The invention discloses a holographic remote interactive teaching system, and relates to the technical field of teaching systems, and the system comprises an integrated teaching system which comprises a three-dimensional dynamic capturing module, a holographic imaging module, an intelligent interactive processing module and a low-delay communication module. The three-dimensional dynamic capture module is used for collecting three-dimensional holographic data of teachers and students in real time, and the three-dimensional holographic data comprises multi-angle depth images and skeleton joint point data. According to the invention, natural eye contact, body language capture and real-time feedback between teachers and students are realized, a dynamic holographic image with a real space depth is generated, the immersion and interactivity of teaching are effectively improved, the problems of eye contact deficiency and student attention distraction in traditional video teaching are solved, and remote teaching is closer to real classroom experience.

The application discloses a holographic image reconstruction method, device, equipment and program product. The method comprises the following steps: inputting object light of a three-dimensional object to be measured into a coaxial holographic imaging device, and outputting a coaxial holographic light field; performing double-optical-path distribution on the coaxial holographic light field to obtain a first optical path and a second optical path; inputting the coaxial holographic light field into a pre-constructed amplitude reconstruction optical path structure and a phase reconstruction optical path structure in parallel through the first optical path and the second optical path; performing full-optical reconstruction on amplitude information in the first optical path through the amplitude reconstruction optical path structure, and outputting an amplitude reconstruction image; and performing full-optical reconstruction on phase information in the second optical path through the phase reconstruction optical path structure, and outputting a phase reconstruction result. The embodiment of the application can improve the accuracy of the holographic image, and can be widely applied to the field of holographic imaging technology.

1. Name of the designed product: holographic fan screen (P42). 2. Use of the designed product: holographic imaging display for advertisement. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses a multifunctional multi-object dual-channel image differential multiplexing method and device, and relates to the technical field of optical information processing and holographic imaging. The method is characterized by comprising the following steps: modulating laser output by a monochromatic light source through a structured light generation device to generate N structured light fields with different complex amplitude distributions; taking the N structured light fields with different complex amplitude distributions as reconstruction light, and enabling the reconstruction light to enter a hologram carrying M pieces of object frequency spectrum information for modulation to obtain an emergent light field; the hologram loaded with the M object frequency spectrum information is pre-produced and generated in a holographic recording or computer-generated hologram mode; fourier transform is carried out on the emergent light field, and M * N spatial differential images of the M objects are obtained. The invention provides a novel and convenient-to-implement Fourier transform holographic method for spatial large-scale parallel differential operation, the multiplexing scale is greatly improved, and the flexibility and operability of spatial differential multiplexing are remarkably improved.

An advance in high-resolution optical metrology has been achieved by the introduction of incoherent holographic imaging. FINCH, an example of incoherent holography, is shown to simplify the process, eliminating many steps in metrology and at the same time increasing throughput, resolution and accuracy of the method. A proposed technique requires only a single image capture with a non-moving camera rather than the capture of multiple stacks of images requiring many camera exposures and movement of the camera or sample in the conventional techniques.

A method of forming two distinct images in a substrate includes controlling a high-energy beam to form a profile ridge in the substrate, and thereafter defining a first set of features on a first side of the profile ridge, the first set of features representing a first distinct image when the substrate is perceived by an observer from a first angle, as well as defining a second set of features on a second side of the profile ridge, the second set of features representing a second distinct image when the substrate is perceived by an observer from a second angle. Both the first set of features and the second set of features are positioned in a common vertical substrate space of the substrate.

This invention relates to the field of holographic storage materials technology, specifically to an NVP-doped PQ / PMMA photopolymer holographic storage material and its preparation method. The NVP-doped PQ / PMMA photopolymer holographic storage material uses NVP, MMA, PQ, and AIBN as raw materials. NVP is doped into PQ / PMMA to achieve the photopolymer material as an excellent medium for holographic storage. This material has a simple preparation process, low cost, high diffraction efficiency, and high photosensitivity, making it better suited for holographic imaging and data storage compared to PQ / PMMA.

The invention discloses a DMD-based time division multiplexing common-path dual-wavelength digital holographic imaging system and a DMD-based time division multiplexing common-path dual-wavelength digital holographic imaging method, and relates to the field of dual-wavelength digital holographic imaging. The invention solves the problems of environmental sensitivity and coherent noise influence on measurement precision caused by lengthy dynamic measurement record and complex interference structure in dual-wavelength digital holographic imaging, and adopts the technical scheme that a digital micro-mirror device is used for rapid overturning, and two paths of light sources with different wavelengths irradiated on the digital micro-mirror device are rapidly switched, so that the measurement precision is greatly improved. An interference image is obtained through a polaroid, an objective table, a microscopic imaging system, a transmission type diffraction grating and a confocal spatial filtering system; according to the invention, high-speed acquisition of two-wavelength interferograms is ensured, the time resolution of measurement is remarkably improved, the problem that phase recovery data is difficult to separate when dual-wavelength illumination is carried out simultaneously is avoided, and common-path interference and partial coherent light illumination are combined, so that the space-time phase sensitivity of measurement is greatly improved.

The invention relates to a system (1) for digital holographic imaging, comprising at least the following components: - a beam splitter (2), - a retroreflector array (3) comprising a plurality of retroreflector elements (30), - a reference mirror (4), wherein the system (1) is configured to superimpose the object light (100) reflected off the reference mirror (4) and off the retroreflector array (3) such that a plurality of interference patterns that can be assigned to the respective retroreflector elements (30) are produced, wherein the system (1) has a phase-adapting optical structural component (5) for predefined phase adaptation of the object light (100), characterized in that the phase-adapting optical structural component has an assigned angle-of-incidence / phase relation (1000) for each of a predefined plurality of incidence directions (e) of the object light (100), wherein the phase-adapting optical structural component (5) is configured to impress phases (Φ) on the object light (100) in accordance with the assigned angle-of-incidence / phase relation (1000) for each of said plurality of incidence directions such that the interference patterns comprise information with which a hologram correspondingly reconstructed from said interference patterns has an improved resolution with respect to a system (1) without the predefined phase adaptation.

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 utility model discloses a holographic imaging device, holographic imaging device includes: heating rack, super surface imaging device, super surface imaging device from top to bottom includes super atomic layer, interval layer and metal base plate in proper order, and super atomic layer has integrated a plurality of super atomic unit arranged according to the pretrial arrangement mode, and adjacent super atomic unit insulates each other, and metal base plate is used for reflecting electromagnetic wave, heating rack sets up at super surface imaging device bottom, is used for triggering the metal -insulator phase transition of super atomic unit, cover body, cover body sets up outside super surface imaging device, light source, light source sets up in super surface imaging device and cover body top.

The present application relates to the technical field of holographic imaging, and particularly relates to a holographic imaging information display structure. The technical scheme comprises a protective shell, an imaging mechanism and a locking mechanism, the locking mechanism comprises an explosion-proof protection plate, the bottom of the explosion-proof protection plate is clamped with the protective shell, the top of the explosion-proof protection plate is provided with an upper clamping groove, and the inside of the protective shell is slidably connected with a snake bone hose. The present application prolongs the overall length through the symmetrically arranged protective frame, presents an infinite extension tunnel vision, forms a visual distance difference between the image and the tunnel space behind the image, presents a visual effect of floating image display, and the transparent OLED display screen used by the protective shell is a transparent screen, so that the real space behind the screen can be seen through the image on the screen, the effect of floating image display can be further strengthened, the shadow part of the protective frame shields the display screen, and sunlight is prevented from being irradiated on the display screen.

Provided herein are methods for determining a cell phenotype, such as an activation state, of a population of T cells. In some aspects, the provided methods are label-free methods. In some aspects, the provided methods can be used to monitor cell phenotypes, such as activation status, of T cell cultures. A computing device for use in performing the provided method is also provided herein.