60 results about "Ultra high resolution" patented technology

A displacement-sensing Doppler radar with ultra-low noise and high sensing resolution is provided. The radar includes N two frequency synthesizers to respectively generate, at different frequencies, a transmitted signal that is radiated toward a target object, and a local oscillator (LO) signal. The radar further includes a mixer and a rectifier to: (1) receive a returned signal from the target object carrying phase delays corresponding to detected displacements of the target object; (2) mix the returned signal and the LO signal to generate a down-converted sine-wave intermediate frequency (IF) signal; and (3) rectify the sine-wave IF signal to a square-wave IF signal, which also carries the displacement-induced phase delays. The radar also includes a phase demodulation module to convert the displacement-induced phase delays into a pulse-modulated signal. The radar further includes a low-pass filter to convert the modulated pulse signal into an output voltage signal indicative of the detected displacements.

The invention relates to the technical field of synthetic aperture radar signal processing, and discloses a CS imaging method based on an ultrahigh-resolution slip SAR high-order slope distance model, and the method comprises the steps: building a high-order slope distance model based on the ephemeris parameters of a synthetic aperture radar satellite and the position information of an imaging target; determining a first expression of an original echo signal of a synthetic aperture radar satellite in a two-dimensional frequency domain and a second expression of the original echo signal in a distance Doppler domain based on a high-order slant-range model, and constructing a phase compensation function based on the first expression and the second expression; and performing range compression, range migration correction, secondary range compression and azimuth compression based on the phase compensation function to generate a focused synthetic aperture radar image. According to the method, universality description can be carried out on the slant range process of the SAR satellites running in different eccentricity rate orbits, and high precision can be kept.

The invention provides an open set target detection method and device for an ultrahigh-resolution image and electronic equipment, and relates to the technical field of computers. The open set target detection method for the ultrahigh-resolution image comprises the following steps: acquiring the ultrahigh-resolution image; determining density information and scale information of a target in the ultrahigh-resolution image; segmenting the ultrahigh-resolution image into a plurality of adaptive image areas according to density information and scale information of a target in the ultrahigh-resolution image; recognizing a target contained in each self-adaptive image region by using a target recognition network to obtain a target detection result of each self-adaptive image region; and generating a target detection result of the ultrahigh-resolution image according to the target detection result of each self-adaptive image area. According to the method, various targets can be accurately and efficiently detected from the ultrahigh-resolution image in various complex and changeable practical application scenes.

The invention discloses a surface topography detection method and system based on double optical comb surface domain frequency sweeping, and relates to the technical field of surface topography detection. According to the method and the device, the frequency sweeping function of the double optical combs is realized by utilizing the area domain frequency sweeping, so that the double optical comb light source capable of realizing high-precision distance measurement can be applied to an interference light path to realize area array distance measurement. Therefore, double-optical-comb frequency sweeping is used for replacing traditional light source frequency sweeping, double-optical-comb multi-heterodyne interference is combined with surface domain frequency sweeping, the measurement precision of the longitudinal depth is greatly improved, then the precision of three-dimensional reconstruction based on the longitudinal depth is improved, the ultra-high resolution ratio which breaks through the micron level and reaches the sub-nanometer level is achieved, and actually, the measurement precision of the longitudinal depth is improved. The atomic-scale surface topography detection with the longitudinal resolution being less than or equal to 0.1 nm can be realized.

According to the ultrahigh-resolution ultrasonic imaging system based on the ultrasonic vortex and the application of the ultrahigh-resolution ultrasonic imaging system, an imaging object is detected by emitting vortex sound fields of different orders, the imaging object, an ultrasonic collecting device and an ultrasonic vortex emitting module are included, and the ultrasonic vortex emitting module comprises an amplitude phase encoding array and an ultrasonic beam modulation structure; vortex distribution is generated through the amplitude phase coding array, the size of a vortex sound field is regulated and controlled through the ultrasonic beam modulation structure, the ultrasonic collection device collects vortex information after passing through an imaging object, and initial vortex distribution which cannot directly reflect the information of the imaging object is obtained. The invention also provides an ultrahigh-resolution ultrasonic imaging method of the ultrasonic vortex, and the method comprises the steps: extracting object information from the initial vortex distribution without object imaging information, and obtaining the initial distribution of an object to be imaged; and further optimizing the initial distribution of the to-be-imaged object through a high-resolution ultrasonic imaging reconstruction algorithm to obtain a super-resolution image of the to-be-imaged object. And the imaging resolution is obviously improved.

The present invention relates to a scanning signal driving unit that can reduce the RC delay of a scanning control line at an ultra-high resolution such as 8K UHD and a display device including the scanning signal driving unit. The scanning signal driving unit includes: a plurality of stages for sequentially outputting scanning signals; a first clock line to which a first clock signal is applied; and a second clock line to which a second clock signal is applied, wherein each of the first clock lines includes a 1-1 metal pattern and a 1-2 metal pattern disposed on the 1-1 metal pattern, and each of the second clock lines includes a 2-1 metal pattern disposed at the same level as one of the 1-1 metal pattern and the 1-2 metal pattern.

The present invention discloses a method for ultra-high-resolution image denoising based on deep learning, which belongs to the technical field of image processing. The method comprises the following steps: step 1, constructing an ultra-high-resolution image cutting and coding model; step 2, inputting a noisy image and a clean image into the cutting and coding model to obtain image blocks; step 3, normalizing the image blocks to different degrees, constructing an image block sequence, and obtaining training and test data; step 4, constructing an image denoising network model; step 5, inputting the image blocks into the image denoising network model to obtain clean image blocks; step 6, decoding the clean image blocks output by the network and splicing them into the original image to obtain a denoised ultra-high-resolution image. The method proposed in the present invention has achieved good results on ultra-high-resolution images, and the network model can be trained end-to-end, which is highly practical in actual ultra-high-resolution image processing scenarios.

The present invention relates to a μLED display design method based on nanowire. The method comprises: first, growing different nanowire materials capable of generating three primary colors: red, green and blue on a substrate; then, respectively dissolving the different nanowire materials in insulated photocuring adhesives and injecting the mixtures into different grids of a grid pool, and performing curing; and finally, arranging electrodes on upper and lower surfaces of the grid pool. The method provided by the present invention can simplify the structure and enhance the industrial efficiency of the μLED.

The application discloses a kind of multi-camera imaging system based on microsecond level dynamic synchronization control, comprising: multi-camera imaging array includes several orderly arranged imaging camera, for imaging;Synchronization control module includes synchronization controller, for each imaging camera provides independent microsecond level time delay configuration;Timing management module includes time-sharing scheduler, for the exposure time slot of each imaging camera;Data acquisition and temporary storage module includes acquisition circuit and memory, for image acquisition and cache;Processing module includes image registration and alignment module and image fusion and interpolation module, wherein, the image registration and alignment module is used for image cooperation and alignment, the image fusion and interpolation module is used for image sequence interpolation image fusion.This application has the characteristics of high time synchronization accuracy, multi-channel acquisition, multi-resolution interpolation fusion space-time reconstruction, with ultra-high resolution and million frame per second level frame rate image acquisition and timing restoration.

The invention relates to the technical field of stimulated emission depletion (STED) super-resolution imaging probes, in particular to design synthesis based on curcumin compound molecules containing a beta-dicarbonyl fluorine boron skeleton and a preparation method of a low-power STED nano-particle probe. According to the invention, the curcumin derivative compound with the beta-dicarbonyl fluorine boron skeleton is synthesized, and the constructed host and guest body type TADF nanoparticles realize low-power STED biological imaging. The preparation method of the host-guest doped nanoparticles is simple and economical, and the host-guest doped nanoparticles have high luminance and TADF characteristics. As an STED nano-particle probe, the material has the advantages of high optical stability and low saturation power, so that ultrahigh-resolution imaging is realized.

This invention proposes a spaceborne ultra-high-resolution SAR imaging method with real-time tropospheric correction, which meets the requirements of high timeliness and high precision SAR imaging processing without being limited by the imaging area. Specifically, a corrected radiometer capable of covering the SAR observation field of view is used to simultaneously measure atmospheric temperature and water vapor pressure; the measurement data and SAR echo data are simultaneously transmitted to the ground to obtain the wet tropospheric zenith delay; using the total tropospheric delay estimation model, the total tropospheric zenith delay is obtained, and the slant range delay caused by the troposphere is further obtained; the slant range delay is used as a correction term to correct the SAR slant range model; in the ultra-high-resolution SAR imaging processing on the ground, the imaging algorithm adopts the slant range corrected by the real-time tropospheric correction, and finally obtains the ultra-high-resolution SAR image.

The invention relates to a 360-degree look-around compound eye imaging system which comprises a compound eye sensing array subsystem which is composed of a multi-mode, multi-scale, multi-angle and multi-speed linear array camera array provided with a telephoto lens; the surround-view and panoramic-view scanning subsystem is used for driving the compound eye perception array subsystem to perform surround-view and panoramic-view scanning or sector scanning; the ultra-high resolution reconstruction subsystem is used for acquiring linear array scanning output images with different scales and different angles by the compound eye perception array subsystem in a single mode, splicing the linear array scanning output images to obtain a panoramic scanning image in the single mode, and performing multi-mode image fusion on a plurality of reconstructed single-mode panoramic scanning images. The multi-mode image information fusion can be realized, the ultra-large-format and ultra-high-resolution panoramic all-around shooting can be carried out with lower cost when the ultra-long-distance video sensing task is executed, richer video information is obtained, and the influence of extreme weather conditions during shooting and imaging is reduced at the same time.

The application belongs to the technical field of image processing, and provides an image super-high resolution reconstruction method based on an attention mechanism, which comprises the following steps: shallow feature extraction is performed on a low-resolution image to be processed through a single convolution layer of a convolution network to obtain a shallow feature map; deep extraction is performed on the shallow feature map through RIR to obtain a deep feature map rich in high-frequency details; a high-resolution feature map is obtained by performing an up-sampling operation on the deep feature map through sub-pixel convolution; and the high-resolution feature map is reconstructed by using a single convolution layer of the convolution network, and a final super-resolution image is output. The application can reliably and accurately restore high-frequency details, avoid blurring / artifacts / false details, and improve the practicability and credibility in key applications.

1. The name of the design product: laser-induced breakdown spectroscopy equipment. 2. The use of the design product: analyzing and identifying the elemental composition of the measured substance by the method of laser-induced atomic spectroscopy (LIBS). By exciting the sample plasma with high-energy laser and combining with ultra-high resolution spectrometer and automatic focusing function, fast and accurate material composition analysis is realized. It is widely used in the fields of geology, metallurgy, environmental monitoring, material science, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

Disclosed herein are various example systems, methods, and compositions, for extremely high-resolution in situ spatial analysis of a sample, with particular applicability to biological materials, by strategically multiplexing a. plurality of different imaging techniques. For instance, certain inputs can be configured to elicit multiple different types of output signals from the sample simultaneously, each of which encodes a different attribute of the sample. These various outputs, once detected, decoded, and assembled, provide for a more- robust analysis than their individual techniques, i.e., if performed sequentially. As just one illustrative example, the infrared light involved in photothermal-infrared (PI) microscopy can also be used, to simultaneously trigger fluorescence-encoded infrared (FEIR) excitation within the sample. Pegging the excitation signals to specific biomarker targets can drastically enhance the combined 3D imagery' that results. Additional techniques may be integrated (i.e., higher-order multiplexing) to resolve the imagery even further.

An image sensor is provided for obtaining an ultra-high resolution image. The image sensor includes a plurality of two-dimensionally arranged pixels, each of the plurality of pixels including a first meta-photodiode that selectively absorbs light of a red wavelength band, a second meta-photodiode that selectively absorbs light in a green wavelength band, and a third meta-photodiode that selectively absorbs light of a blue wavelength band. A width of each of the plurality of pixels of the image sensor may be less than a diffraction limit.

A tileable, low-cost image sensor array suitable for creating very large images (e.g., >1 gigapixel). The optical system can also be used to combine low resolution displays to create very high-resolution images (e.g., >1 gigapixel). It includes at least one beam splitter, a pair of sensor arrays and a mirroring means (physical mirror or electronic / digital mirroring algorithm). With 10 megapixel image sensors, four arrays 6×6 image sensors would provide a gigapixel image. For 48 megapixel image sensors, four array of 3×3 image sensors would provide a gigapixel image. The design of the image sensor arrays, when factoring in mirroring of the image array sensors, allows for the images to be stitched together to form a composite image.

The invention discloses an ultrahigh-resolution FMCW (Frequency Modulated Continuous Wave) system satellite-borne sliding bunching mode SAR (Synthetic Aperture Radar) imaging method. The method comprises the following steps: receiving reflected signals of sub-blocks of an area to be imaged; performing Fourier transform on the fast time in the reflected signal, then performing phase compensation on the slow time, and converting the obtained signal into a virtual equivalent echo signal after direct sampling and matched filtering; pre-filtering in the range direction is carried out; flipping and translating in a frequency domain fi domain into a translation amount under a unified reference slant distance; carrying out fast time domain time domain symbol and proportion replacement; converting the distance time domain into a frequency domain, and performing down-sampling; imaging the downsampled signal to obtain a sub-block image; fusing the plurality of sub-block images to obtain an SAR image of the to-be-imaged region; through the spaceborne ultrahigh-resolution SAR fast imaging method based on range direction frequency domain downsampling, the operation amount of block imaging processing can be greatly reduced.

The present system employs optical coherence tomography (OCT) or optical coherence microscopy (OCM) systems, including ultra-high resolution Gabor-domain optical coherence microscopy (GD-OCM), into a 3D flow imaging technique. This technique models the repeated scans as Gaussian latent variables, with the common variance representing both static tissue structure and dynamic blood flow, and the anisotropic unique variance representing tissue motion in specific frames. Since the motion generated variance is independent from that of the structure or the flow, by iteratively maximizing the combined log-likelihood probability of these two variances modeled through exploratory factor analysis, the unique variance (or the tissue motion) may be largely excluded. In the common variance, the dynamic blood flow may be separated from the static tissue structure, by integrating the factors that represent the relatively low levels of correlation. Compared to a direct differentiation of OCT or OCM scans, the present flow imaging algorithm improves the visualization of capillaries with reduced motion artifacts.

Aluminoborosilicate glass compositions, products comprising the same, methods of making the same, and methods of using the same are provided. Such glass compositions include oxides of alkaline earth metals. The glass compositions include a low concentration of boron oxide and strontium oxide. Such glass compositions may be substantially alkali-free. The glass compositions exhibit desirable physical and chemical properties, for example, high annealing point, high elastic modulus, low stress optical coefficient (SOC), low T(35kP) and T(200P), and desirable liquidus viscosity. The glass compositions are suitable for use as substrates in flat panel display devices such as active matrix liquid crystal displays (AMLCDs) with ultra-high resolution.

The invention generally relates to systems and methods for utilizing interferometric ultra-high resolution 3D imaging. In certain aspects, the invention provides a system for achieving molecular resolution through tissues, the system comprising: an interferometric apparatus; and a control unit comprising one or more processors configured to: receive interferometric tissue data from the interferometric apparatus, wherein the interferonic tissue data comprises one or more tissue-induced abberations; apply a 4Pi in-situ point spread function (PSF) retrieval algorithm to the interferonic tissue data, thereby enabling direct retrieval of an aberrated, time-dependent in-situ model of single-molecule emission pattern from the interferonic tissue data, wherein the in-situ model reflects distortions, blurring, and / or partial coherence encountered during detection; and minimize disparities between the interferonic tissue data and the in-situ model to thereby provide accurate molecular localizations in the presence of tissue-induced aberrations.

Single-mask X-ray imaging simultaneously captures attenuation, differential phase contrast (DPC), and dark-field images in a single exposure by capturing multiple contrast features like dark field and differential phase contrast using mask alignment with relatively low-resolution detectors and smaller magnification. New light transport models are used for various system configurations to effectively extract contrast features from various single mask X-ray configurations, thereby eliminating the need for highly coherent X-ray sources, ultra-high-resolution detectors, and intricate gratings, and as such simplifying the imaging process and significantly reducing costs and improving the prospects of clinical translation. Three variations of the single-mask setup are each optimized for different contrast types, offering flexibility and efficiency in a variety of applications.

The invention relates to the technical field of optics, in particular to a photon nanometer jet flow generator based on a concentric ring structure and a design method, and the photon nanometer jet flow generator comprises a medium substrate and a medium concentric ring structure arranged on the medium substrate; the medium concentric ring structure is formed by circular ring structures with different inner and outer radiuses distributed along a concentric circle. According to the PNJ generator based on the concentric ring structure, the concentric ring structure meeting the requirement can be designed as required for any optimization target. Moreover, the concentric ring structure provided by the invention is compatible with a micro-nano processing technology, is easy to process, has the advantage of on-chip integration, and shows huge application potential in the fields of ultrahigh-resolution optical imaging, nano particle control, ultra-sensitive biosensing, nanoscale photoetching, enhanced spectroscopy and the like.

This disclosure provides a method and related apparatus for determining the location of ultrashort baseline lightning strikes using a multi-antenna monostatic three-dimensional layout. The method utilizes a multi-antenna three-dimensional layout to construct one set of regular pentagonal interferometer arrays without angular error and multiple sets of equilateral triangular interferometer arrays with angular error by different combinations of antennas. The time difference between each VHF antenna of the same pulse signal is obtained by different antenna combinations. Two-dimensional observations without system error are performed using the regular pentagonal interferometer arrays. The two-dimensional observation results with system error obtained from the equilateral triangular arrays are corrected. Then, the two-dimensional information obtained from the regular pentagonal interferometer arrays is used as a reference, and the corrected two-dimensional information obtained from the multiple equilateral triangular interferometer arrays is intersected in three-dimensional space to obtain three-dimensional information. This disclosure can achieve ultra-high-resolution three-dimensional location determination for lightning discharges, and can achieve nanosecond time resolution and digital-meter order spatial resolution of the lightning discharge process.

This invention discloses an ultra-high resolution FMCW-based spaceborne sliding spotting mode SAR imaging method, which receives the reflected signals of sub-blocks in the region to be imaged; performs Fourier transform on the fast time portion of the reflected signal and then phase compensation on the slow time portion, converting the resulting signal into a virtual equivalent direct sampling matched filter echo signal; performs range pre-filtering; and performs frequency domain f i The domain flip translation is the translation amount under a unified reference slant range; fast time domain sign and scale replacement is performed; the range time domain is converted to the frequency domain and downsampled; the downsampled signal is imaged to obtain sub-block images; several sub-block images are fused to obtain the SAR image of the area to be imaged; by using a spaceborne ultra-high resolution SAR fast imaging method based on range-to-frequency domain downsampling, the computational load of block imaging processing can be greatly reduced.

The present invention relates to a microlens array sheet of ultra-high resolution using quantum dots and a method for manufacturing same, for implementing an ultra-high resolution RGB display, and a color-conversion microlens array sheet according to one embodiment of the present invention is formed by first creating a barrier structure to determine the diameter of the lenses and the distance between adjacent lenses, and then filling empty spaces between the barriers with a microlens-shaped structure containing quantum dots.

A method for fabricating a semiconductor device is provided. The method for fabricating the semiconductor device includes forming a semiconductor pattern including a first layer and a second layer on a substrate, forming a coating layer on a surface of the first layer, forming a dyeing substance in which one of an antibody or a protein is combined with a fluorophore, attaching the dyeing substance to a surface of the coating layer to form a dyeing layer, and photographing the fluorophore with an ultra-high resolution microscope to detect the semiconductor pattern.

The invention discloses a multi-image panoramic stitching method based on depth matching, a camera and a storage medium, and the method comprises the following steps: S1, image preprocessing and multi-scale zooming: firstly inputting a multi-image sequence, and after inputting the multi-image sequence, according to a self-defined working resolution, a seam resolution and a synthesis resolution, carrying out the multi-scale zooming of the multi-image sequence; the method comprises the following steps of: performing adaptive scaling on a plurality of input images to generate a multi-scale image set; s2, deep learning end-to-end matching: performing end-to-end feature matching on the multi-scale image set by using a pre-trained ONNX model to generate direct matching information between the image pairs; s3, performing global consistency screening; s4, estimating and optimizing camera parameters; and S5, performing exposure compensation and image fusion. The method has the advantages that the matching precision and the calculation efficiency are remarkably improved, the overall consistency of the splicing result is ensured, the calculation efficiency and the splicing quality are balanced, and the method is suitable for ultrahigh-resolution image sequences.

The invention relates to an end-side adaptive picture super-division processing method and system based on weak network perception, and belongs to the technical field of image processing and mobile computing, and the method comprises the steps: continuously monitoring a network state at a client, and setting a weak network mark; the method comprises the following steps of: integrating a lightweight picture super-division SDK (Software Development Kit), wherein a special super-division model which is obtained through a knowledge distillation and model compression technology and has a parameter quantity between 0.1 B and 0.5 B is arranged in the lightweight picture super-division SDK; according to the target resolution and the network state of the to-be-requested picture, adaptively selecting a picture acquisition strategy: directly downloading a low-resolution picture; downloading a low-resolution version of the medium-resolution picture in a weak network, and processing the low-resolution version into a high-resolution picture in real time by an end-side super-resolution SDK; and the ultra-high-resolution picture goes through a local ultra-resolution process by default. According to the method, the contradiction between high-precision picture display and network transmission delay is effectively solved, the user experience in a weak network environment is remarkably improved, and efficient balance between network bandwidth and terminal computing resources is realized.

This invention relates to a method for fabricating horizontal heterojunction photodetector matrices based on single-crystal nanoribbons, belonging to the field of nanomaterials and optoelectronic devices. A two-step chemical vapor deposition process is employed: first, a first type of single-crystal nanoribbon array is directionally grown on a single-crystal substrate with a stepped surface; then, using this as a template, a second material is epitaxially grown along the lateral edges of the nanoribbons, directly forming a large-area, oriented, continuous single-crystal horizontal heterojunction nanoribbon array. This avoids material damage at the heterojunction interface caused by traditional patterning processes, achieving high-quality, high-uniformity, and controllable interface fabrication. The nanoribbon array is then segmented into a high-density discrete PN junction matrix using micro / nano fabrication techniques, and electrodes are fabricated to construct the photodetector matrix. This achieves controllable growth of a high-quality single-crystal heterojunction array and efficient integration of the optoelectronic device matrix. The resulting device exhibits advantages such as high pixel density, no crosstalk between units, low dark current, and fast response, providing a feasible solution for ultra-high resolution optoelectronic integrated systems.