534 results about "Pixelation" patented technology

A waveguide for transmitting image light in a display device is disclosed. The waveguide includes a waveguide body, an input coupler configured to couple the image light into the waveguide body to cause the image light to propagate along a zigzag optical path within the waveguide body, and a plurality of ramped body reflectors configured to couple the image light into the waveguide body to cause the image light to propagate along the zigzag optical path within the waveguide body. The plurality of ramped body mirrors are disposed within the waveguide body along the zigzag optical path and have tunable reflectance parameters for controlling spatial distribution of image light portions coupled out of the waveguide body by the plurality of ramped body mirrors. The waveguide may include a plurality of tilted polarization selective body mirrors and a liquid crystal layer configured to change polarization of the image light, the liquid crystal layer disposed between a backplane electrode and a pixelated electrode configured to control the liquid crystal layer by applying a spatially varying voltage distribution.

Disclosed in the present application are a method and apparatus for quickly evaluating the safety and stability of a power system, and a terminal. The method comprises: pixelating a steady power characteristic variable acquired by means of measurement or generated by means of simulation, so as to generate an offline three-channel pixelated image, and constructing a sample set; using the constructed sample set to train a fusion model based on a deep residual network and a transformer, wherein the trained fusion model is used for quickly evaluating the safety and stability of a power system; and pixelating a steady power characteristic variable measured in real time, so as to generate an online three-channel pixelated image, and using the trained fusion model to process the generated online three-channel pixelated image, so as to generate a transient stability state evaluation conclusion for the power system. Thus, a fusion model integrating ResNet and a transformer can meet the requirements for the timeliness and accuracy of online safety and stability evaluation of a power system.

Systems and methods are described for optical processing. According to some aspects an optical processing apparatus may include a pixelated photodiode array (PDA), each pixel in the PDA includes a radiation detector. The apparatus also includes a read out integrated circuit (ROIC) that includes a logic circuit and a plurality of switch elements. The plurality of switch elements being switchable between an armed state for arming its corresponding radiation detector and transmitting a signal received from the corresponding detector to the ROIC, and a disarmed state for disarming its corresponding detector and blocking transmittal of the signal, wherein in the armed state, the PDA is configured to detect an incoming optical signal and in the disarmed state, the PDA is configured to disregard the incoming optical signal. Moreover, the logic circuit controls a switch state of a selectable switch element associated with a radiation detector.

The invention discloses a pixelated matching circuit design and optimization method based on a large language model, and relates to the technical field of radio frequency circuits, and the method comprises the steps: obtaining a target demand and a physical constraint of a matching circuit; generating an initial topological structure based on the target demand and the physical constraint, and performing parameter estimation on the initial topological structure to obtain an initial binary matrix constrained by the initial topological structure and the parameter; obtaining an optimization problem based on the initial binary matrix and the target demand; wherein the optimization problem comprises distribution of optimization parameters, optimization objectives and solution spaces; and obtaining a key performance index and an optimization algorithm according to the optimization problem, and carrying out iterative search in the optimization algorithm according to the key performance index to obtain an optimal solution for solving the optimization problem so as to generate an optimal pixelated topology. According to the method, the optimal pixelated topology can be generated, and efficient global optimization is realized.

The invention provides a preparation method of a volume holographic element, the volume holographic element and an augmented reality 3D display device. The preparation method comprises the following steps: providing a pixelated diffractive lens array and a volume holographic material arranged adjacent to or adjacent to the pixelated diffractive lens array; wherein the pixelated diffraction lens array comprises target diffraction lens sub-units which are distributed in an array; at least one recording step is implemented, and the recording step comprises the steps that a recording light beam is projected to the pixelated diffractive lens array, and the recording light beam is irradiated to one side of the volume holographic material after being emitted by the pixelated diffractive lens array; and projecting a reference light beam to the other side of the volume holographic material, irradiating the reference light beam to the volume holographic material and interfering with the recording light beam to form holographic pixel units in one-to-one correspondence with the target diffraction lens sub-units. The volume holographic element prepared by the preparation method has high diffraction efficiency and high transmittance, and the presented 3D image also has the advantages of low crosstalk, no depth flipping, no self-repetition image and the like.

The invention relates to an optical device for projecting light beams, capable of cooperating with a pixelated light source, including a plurality of selectively activatable emissive elements, which consists of the following components, arranged in succession along the path of the light rays from the source: a convergent first lens, a divergent or neutral second lens, a pupil and a convergent third lens.

The invention provides a pixelated flexible composite scintillation thin film based on a template-assisted nanoimprint technology and a preparation method and application of the pixelated flexible composite scintillation thin film. The preparation method of the pixelated flexible composite scintillation film comprises the following steps: preparing the flexible composite scintillation film; and constructing a periodic nanometer photon structure pattern on the flexible composite scintillation film by using a template-assisted nanoimprint technology to obtain the pixelated flexible composite scintillation film. According to the preparation method of the pixelated flexible composite scintillation film based on the template-assisted nanoimprint technology, the process is controllable, the preparation process flow is simplified, the production cost is reduced, the spatial resolution of the flexible composite scintillation film can be effectively improved, the imaging performance of the flexible scintillation film is greatly improved, and the application prospect is wide. Wide application prospects are realized in the fields of high-resolution X-ray imaging, radiation detection and wearable medical devices.

An optical system includes a light-receiving plane, a lens group, a pixel-based diaphragm, and a driving unit. The lens group is configured to direct an incident light to the light receiving plane. The pixel-based diaphragm is at an aperture stop of the lens group. The pixel-based diaphragm includes a first substrate coated with pixelated electrodes; a second substrate coated with an electrode; and an active medium layer between the first substrate and the second substrate. The driving unit is electrically coupled with the pixel-based diaphragm and configured to control the pixel-based diaphragm to have a first light transmitting pattern at a first time duration and a second light transmitting pattern at a second time duration, wherein the first light transmitting pattern is different from the second light transmitting pattern.

The invention provides an edge contour single pixelation method and a storage medium, and relates to the technical field of image processing, and the method comprises the following steps: collecting a target image, and carrying out the Gaussian filtering of the target image; after Gaussian filtering, extracting an edge contour in the target image by adopting a discrete differential operator to obtain a wide edge; refining the wide edge by using non-maximum suppression to obtain a refined edge, and converting the refined edge into an edge contour region; and performing morphological single-pixelation on the edge contour region to obtain a single-pixel edge region, and converting the single-pixel edge region into a single-pixel edge contour. According to the method, the problem that non-single-pixel wide edge points exist in existing contour extraction is solved, accurate single-pixel processing of the edge contour is realized, so that the image processing precision and efficiency are improved, and the urgent requirements of industrial production and intelligent manufacturing fields on high-precision edge contour extraction are met.

The invention relates to a light effect animation data generation method and apparatus, a device and a medium. The method comprises the steps of obtaining a target image for constructing light effect animation data; according to the color values of the pixels in the target image, constructing a palette containing a fixed number of reference colors, and determining attribution probability distribution corresponding to each reference color mapped to the palette by each pixel; corresponding to the parity of each pixel in the plane space position of the target image, selecting a reference color according to the attribution probability distribution so as to update the color value of the pixel; and packaging the target image with the updated color value into the light effect animation data. According to the method, the light effect animation data is generated by utilizing the attribution probability and odd-even spatial modulation, and the smooth pixelated light effect can be realized when the atmosphere lamp is played.

Systems and methods for a global headlamp. An example method includes obtaining configuration information indicative of a jurisdiction associated with a vehicle. Headlamp state information is accessed which includes multiple headlamp states. A current headlamp state of the multiple headlamp states is determined based on the configuration information. A propagation is output via a pixelated light source in a headlamp of the vehicle, the propagation representing a particular beam pattern which is compliant with the jurisdiction.

The invention discloses a design method of a double-layer metasurface wave absorber, the double-layer metasurface wave absorber comprises a pixelated unit located on the upper layer and a regular topological pattern structure located on the lower layer, and the method comprises the following steps: dispersing a resistive film-air structure of the pattern layer of the pixelated unit into a pixelated structure image, and representing the pixelated structure image by using a 0-1 matrix; generating a plurality of groups of 0-1 matrixes, constructing a pixelated unit, and obtaining a reflection coefficient curve; combining the target reflection coefficient curve and multiple groups of random noise into combined vectors, inputting the combined vectors into a generator, generating multiple target pixelated structure images, and obtaining multiple target pixelated units; determining design parameters of a resonance pattern layer, inputting the target reflection coefficient curve into a DNN neural network, outputting target design parameters, and obtaining a target regular topological pattern structure; and combining the target pixelated unit with the target regular topological pattern structure to obtain the target double-layer metasurface wave absorber. According to the method, rapid design of the double-layer metasurface wave absorber can be completed.

The invention discloses a composite circuit substrate material parameter pixel gray scale coding method and device and a storage medium, and relates to the technical field of composite substrate material physical property modeling simulation. According to the method, the composite circuit substrate unit image is pixelated, the pixel gray value is used as a matrix material parameter coding space, and then matrix material parameter information is embedded into the substrate unit image, so that fusion coding of wiring pattern features and material mechanical parameters is realized when two or more materials exist in the same layer of substrate; and the accuracy of predicting the equivalent mechanical parameters of the substrate unit through the wiring image information of the substrate unit and the deep convolutional neural network is improved.

The invention relates to a method for detecting boron distribution in an oxidation corrosion product deposition layer. The total mass of boron in the oxidation corrosion product deposition layer is detected by utilizing an instantaneous gamma activation technology; the method comprises the following steps: obtaining a geometric boundary of a deposition layer of a corrosion product according to neutron photography, constructing a Compton cone in the geometric boundary obtained by neutron photography according to instant gamma rays generated by the oxidation corrosion product and Compton scattering information generated by the action of a Compton photography unit, and reconstructing the origin of the gamma rays; and carrying out pixelated image reconstruction by adopting a random origin set algorithm to obtain a distribution image generated by gamma rays so as to obtain the proportional distribution of the boron element in the oxidation corrosion product deposition layer. According to the obtained total boron element concentration and boron element proportion distribution, boron element concentration distribution in the oxidation corrosion product deposition layer is calculated, and the defects that only boron element distribution in the limited depth of the surface of the corrosion product deposition layer can be measured and internal element distribution information cannot be obtained in an existing method are overcome.

The invention relates to a recoverable visual encryption method for a human body privacy area in an image collected by an unmanned aerial vehicle. The method comprises the following steps: constructing a joint deep learning model integrating a pre-training target detection module, a self-adaptive visual encryption module and an enhanced visual decryption module; in the training stage, target detection module parameters are frozen, and an encryption and decryption module is optimized end to end through combined loss formed by a composite decryption loss function and an encryption strength loss function; during application, the target detection module accurately locates a human body sensitive area, the encryption module applies size-adaptive and strength-learnable pixelated transformation to generate a natural encryption image, and the decryption module realizes high-fidelity original information recovery through an enhanced U-Net network under an authorization condition. Compared with an existing traditional image encryption or irreversible desensitization technology, the method has the advantages that seamless integration with a mainstream target detection process is achieved, the integrity and restorability of information are guaranteed while high visual concealment is achieved, and the method has the advantages of being intelligent, high in efficiency and high in practicability.

Techniques are disclosed for systems and methods to provide dynamic display systems for mobile structures. A dynamic marine display system includes a user interface comprising a primary display and secondary display, where the secondary display is disposed along and physically separate from an edge of the primary display, and where the secondary display comprises a touch screen display configured to render pixelated display views and receive user input as one or more user touches and / or gestures applied to a display surface of the secondary display. A logic device is configured to receive user selection of an operational mode associated with the user interface and / or the mobile structure and render a primary display view via the primary display and / or a secondary display view via the secondary display corresponding to the received user selection and / or operational mode.

The invention relates to the technical field of radiation imaging, in particular to a coded hole XRD (X-Ray Diffraction) imaging system and method based on a distributed ray source, and the system comprises the distributed ray source which is provided with a plurality of focuses and is used for transmitting multiple beams of multi-energy X-rays; the front collimator is used for shaping each multi-energy X-ray beam into a fan-beam multi-energy X-ray beam and ensuring that the fan-beam multi-energy X-ray beam completely covers an area to be reconstructed of a scanned object so as to generate a diffraction signal; the transmission detector is used for performing attenuation correction on the diffraction signal; the coding plate is used for coding diffraction signals generated by the object; the pixelated spectrometer is used for measuring the coded diffraction signals so as to form diffraction data; and the image reconstruction module is used for carrying out iterative optimization on the target function by utilizing the diffraction data to obtain a reconstructed image. Therefore, the problems that an existing snapshot type coding hole imaging system is poor in data condition and difficult to solve, and an existing rotary scanning coding hole imaging system is high in complexity, long in scanning time and the like are solved.

The present invention relates to a track lighting system (1) comprising: a power track (2) having a longitudinal extension (L) and being connectable to an electric supply; a plurality of individually controllable lighting devices comprising at least one first lighting device (3) and at least one second lighting device (4), each being connectable to the power track (2), wherein the at least one first lighting device (3) comprises a first light source and a first light exit window (5) having a first form factor, wherein the at least one second lighting device (4) comprises a second light source and a second light exit window (6) having a second form factor; wherein at least one first lighting device (3) is a first pixelated lighting device wherein the first light source comprises a plurality of individually controllable first LED pixels; wherein the track lighting system (1) further comprises at least one control unit arranged to individually control the lighting devices (3, 4); and wherein the control unit is further arranged to control at least one first LED pixel of the plurality of individually controllable first LED pixels of the at least one first lighting device (3) to illuminate only a first portion of the first light exit window such that a light pattern is providable by the track lighting system (1) in the first light exit window.

The invention discloses a photoelectric device array structure and a preparation method thereof, and relates to the technical field of semiconductors. The method comprises the steps that a driving wafer and compound pixels are bonded and integrated through bonding structures on the surfaces of the driving wafer and the compound pixels, a bonded device is formed, and a reflector layer and a first semiconductor layer are stacked on the surface of the side, away from the driving wafer, of the bonding structures corresponding to the compound pixels; pixelization is carried out on compound pixels in the bonded device, etching is carried out to a part of the first semiconductor layer in the compound pixels, so that the other part of the first semiconductor layer is reserved, a plurality of continuous pixel units on the first semiconductor layer are obtained, and each pixel unit is electrically connected with a first electrode contact in the driving wafer. Pixel isolation is carried out on a plurality of continuous pixel units, and a reflection cavity structure surrounding the pixel units is prepared; and preparing a second conductive electrode at the top of the pixel unit after pixel isolation.

The invention provides a pixelated point cloud completion method and system based on mask attention and style loss fusion, belongs to the technical field of computer vision and three-dimensional reconstruction, and aims to enhance global geometric features and reserve local details by mapping point cloud to a two-dimensional image space. Specifically, a pixelation algorithm is designed, firstly, point cloud is converted into a graph structure, and the graph structure is mapped to a two-dimensional grid through triangulation. Then, a two-dimensional image is generated through an optimization algorithm, the topological structure of the point cloud is reserved, and each point in the point cloud serves as a pixel to be filled into the two-dimensional image to be aligned with the features of the point cloud; in addition, a dynamic generation prompt module and a mask perception attention mechanism are introduced to enhance local details. And finally, generating a complete point cloud from coarse to fine according to the point agent.

The invention discloses a parameterized curve mask OPC method and device based on segmented Bezier, a medium and a product, and relates to the technical field of semiconductor manufacturing, and the method comprises the steps: carrying out the continuous transmission mask optimization of a target pattern, and obtaining a CTM mask with an auxiliary pattern; performing level set optimization to obtain a mask layout; after the contour of the mask layout is thinned, a Bezier curve is used for fitting, and a pixelated mask is obtained; constructing a mask error factor matrix by taking an edge placement error as a target, and solving to obtain the movement amount of a control point; adjusting the position of the control point according to the movement amount of the control point and the angular bisector direction to obtain a new control point; and performing Bezier curve fitting on the new control point, and calculating a weighted edge placement error of an evaluation point in a fitting result. According to the invention, the imaging quality can be ensured while the data volume is reduced.

The present invention relates to a track lighting system (1) comprising: a power track (2) having a longitudinal extension (L) and being connectable to an electric supply; a plurality of individually controllable lighting devices comprising at least one first lighting device (3) and at least one second lighting device (4), each being connectable to the power track (2), wherein the at least one first lighting device (3) comprises a first light source and a first light exit window (5) having a first form factor, wherein the at least one second lighting device (4) comprises a second light source and a second light exit window (6) having a second form factor; wherein at least one first lighting device (3) is a first pixelated lighting device wherein the first light source comprises a plurality of individually controllable first LED pixels; wherein the track lighting system (1) further comprises at least one control unit arranged to individually control the lighting devices (3, 4); and wherein the control unit is further arranged to control at least one first LED pixel of the plurality of individually controllable first LED pixels of the at least one first lighting device (3) to illuminate only a first portion of the first light exit window such that a light pattern is providable by the track lighting system (1) in the first light exit window.

A waveguide for conveying image light in a display device is disclosed. The waveguide comprises a waveguide body, an input coupler configured to couple the image light into the waveguide body for propagating the image light within the waveguide body along a zigzag light path, and a plurality of slanted bulk mirrors disposed along the zigzag light path within the waveguide body and having a tunable reflectivity parameter for controlling a spatial distribution of image light portions out-coupled from the waveguide body by the plurality of slanted bulk mirrors. The waveguide may include a plurality of slanted polarization-selective bulk mirrors, and a liquid crystal layer configured to alter the polarization of the image light, the liquid crystal layer being disposed between a backplane electrode and a pixelated electrode configured to control the liquid crystal layer by application of a spatially-varying voltage profile.

The present invention provides a liquid crystal alignment agent, which can obtain a liquid crystal alignment film that has good resistance to AC afterimages or afterimages derived from residual DC and has good adhesion to a sealant, and can obtain a liquid crystal display element that suppresses the deviation of brightness within the surface during black display and has excellent contrast characteristics. The liquid crystal alignment agent is characterized in that it contains the following (A) components and (B) components. (A) component: a polymer (A) having a repeating unit represented by the following formula (1). (B) component: a polymer (B) having a repeating unit represented by the following formula (3). (In formula (1), R 1 ~R 4 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, etc., R 1 ~R 4 At least one of Y is a group other than a hydrogen atom as defined above. 1 is a divalent organic group having a partial structure represented by the following formula (H). 3 is a tetravalent organic group derived from an aromatic dianhydride, Y 3 is a divalent organic group having a partial structure represented by formula (m). 30 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. 31 , Z 32 is a hydrogen atom, etc. )(Q 3 For - (CH 2 ) n -(n is 2 to 20), any -CH 2 - is optionally substituted by -O-. The oxygen atoms are not directly bonded to each other. Any hydrogen atom on the benzene ring is optionally substituted by a monovalent organic group. * represents a bond. )

Methods, devices and systems for characterizing polarization components are described. One example method includes illuminating an area of the polarization component with a uniform light beam in a particular polarization state, and receiving, at a pixelated detector, reflected or transmitted light from the polarization component in response to illuminating the area of the polarization component. Each group of pixels of the pixelated detector receives light from a corresponding spatial region of the polarization component to allow a plurality of spatial regions of the polarization component to be measured in via a single image. The method also includes obtaining Stokes parameters of the polarization component based on the received light at the pixelated detector, and determining one or more characteristics of the polarization component for each of the plurality of the spatial regions using the Stokes parameters.

The present disclosure is directed to a marker pixel wicking apparatus that allows a user to create dimensional pixelated art using a method of applying a colored ink marker directly onto the top white surface of a specifically designed substrate. The substrate has been molded specifically with an array of small vertical flat-topped cylinders covering nearly the entire surface.

A radiation detector unit including an interposer configured to electrically connect a pixelated radiation sensor positioned on a front side of the interposer to an application-specific integrated circuit (ASIC) positioned on a back side of the interposer, where the interposer has at least one feature which equalizes the energy resolution (ER) response of edge and center pixel detectors of the pixelated radiation sensor within 10% of one another.

The invention discloses a method for identifying bubbles in an image. The method comprises the following steps: acquiring a glass liquid sample image; the molten glass sample image is pixelated to obtain a pixel image; the connected domains in the pixel image and the number of the connected domains are recognized, the connected domains represent bubble image domains in the image, and the number of the connected domains represents the number of bubbles; according to the method, the mapping relation between the image bubble area and the image connected domain is constructed, the target of recognizing the position and the number of the bubbles in the image is achieved by recognizing the connected domain in the pixel image and the number of the connected domain, and therefore the working efficiency of bubble recognition and counting is improved.

The application belongs to the field of scintillator material preparation, and particularly relates to a manganese-based pixelated scintillator array and a preparation method and application thereof. The (BuTPP)2MnBr4 scintillator material in a molten state is filled into a quartz glass cavity by capillary action, and a glass scintillator matrix is formed by cooling and quenching; then, in-situ crystallization is realized in the glass scintillator by using femtosecond laser direct writing processing, and a pixelated array is precisely constructed. The in-situ crystallization induced by the femtosecond laser significantly improves the photoluminescence intensity and the radiation luminescence intensity of the material, effectively solves the problems of low luminescence efficiency, high pixelation processing difficulty and poor crystallization controllability of the traditional glass scintillator, and the prepared pixelated scintillator array has stable optical performance and clear pixel boundary, is suitable for X-ray imaging, radiation detection and the like, and has simple preparation process and strong controllability of parameters, thereby providing a new implementation method for the preparation of arrayed X-ray scintillators.

The invention provides a preparation method of a patterned light guide plate. At least one group of microstructure array is formed on the patterned light guide plate and can be coupled with incident light in a target direction to display a target pattern; the preparation method comprises the steps of obtaining a target pattern; pixelating the target pattern, and dividing each pixel in the pixelated target pattern into a plurality of different pixel combinations; obtaining a microstructure template matched with each pixel combination, and matching a corresponding microstructure template for each pixel in the pixelated target pattern; and forming a microstructure array image-text according to the microstructure template of each pixel, and forming the at least one group of microstructure arrays on the light guide plate according to the microstructure array image-text. According to the preparation method, an original whole microstructure mask can be effectively segmented, so that when the direction or size of the microstructure needs to be changed, the change requirement of the microstructure is met by changing the corresponding microstructure template, and the preparation flexibility of the patterned light guide plate is improved.