27 results about "Horizontal resolution" patented technology

The application relates to a moving target constant resolution ISAR imaging method and device based on track information. The method comprises the following steps: obtaining a speed vector of a moving target by processing track information, inputting the speed vector into a pre-constructed extended Kalman filter to obtain an attitude angle of the moving target at each time, converting the attitude angle of the moving target in a three-dimensional space into an actual rotation angle in two-dimensional imaging through a rotation matrix, obtaining an effective rotation angle according to the actual rotation angle, accumulating the effective rotation angles of continuous multiple time points until the accumulated angle meets a preset horizontal resolution threshold, taking the time corresponding to the accumulated angle as an imaging window length, accumulating the effective rotation angles according to the preset horizontal resolution threshold, obtaining multiple imaging window lengths, obtaining multiple target images, and realizing imaging of the moving target. The method has noise stability in the imaging process of the target, and further improves the target imaging quality.

This application relates to the field of optical technology and discloses an optical component. A beam splitter assembly intersects with a first optical path. The beam splitter assembly includes a first beam splitter and a second beam splitter. The first beam splitter intersects with a first beam to transmit a first split beam from the first beam. The second beam splitter intersects with a second beam to transmit a second split beam from the second beam. An optical modulator intersects with the first and second beam splitters to modulate their phase. Lens assemblies are respectively disposed on a second and a third optical path to amplify and rotate the first split beam before projecting it onto a first region to form a first pattern. Lens assemblies amplify and rotate the second split beam before projecting it onto a second region to form a second pattern. The horizontal resolution of the first and second patterns is greater than their vertical resolution. The first and second patterns combine to form an elongated image. This provides an optical component and a head-up display system for improving horizontal resolution and image size.

Embodiments of this application disclose an image rendering method, apparatus, and electronic device. The method includes: writing an image captured by a target camera into a target rendering texture; obtaining the width and height values ​​of the target rendering texture in three-dimensional space based on the resolution, pixel-per-unit ratio, and scaling factor of the target rendering texture; constructing a cylindrical model based on the width and height values ​​of the target rendering texture in three-dimensional space, and obtaining the horizontal and vertical resolutions corresponding to the cylindrical model; constructing a three-dimensional mesh based on the horizontal and vertical resolutions corresponding to the cylindrical model; and rendering the three-dimensional mesh based on the texture in the target rendering texture. This application combines rendering textures for scene rendering, eliminating the need to draw scene content onto a buffer, thereby reducing an additional texture sampling, simplifying the entire rendering process, and improving rendering quality.

The application discloses a kind of based on background point cloud fine processing laser radar and camera joint calibration method, comprising: using laser radar and visible light camera to build experimental device, and construct the optimization equation for solving calibration matrix;The foreground point cloud of the calibration object scanned by laser radar is fitted as a straight line;For the straight line fitted, obtain the background point cloud of laser radar in the same scan line with it;According to horizontal angle, solve the edge point of calibration object;The three-dimensional feature point of calibration object is solved using the obtained edge point;The three-dimensional feature point obtained and the corresponding two-dimensional feature point obtained by visible light camera are brought into optimization equation to solve calibration matrix.The application can obtain the edge point of calibration object scanned by laser radar with high precision and solve accurate three-dimensional feature point, avoid the problem of insufficient feature point accuracy caused by low horizontal resolution of laser radar, thereby improve joint calibration accuracy.

The object image value for each location in the ultrasonic reflectance image is calculated by summing the image values ​​from images associated with selected intersections in different rows and columns within the array of ultrasonic transducers. The image value for each of these intersections is determined by transmitting an ultrasonic transmission signal from the ultrasonic transducer to a first subsampled selection of first sampling locations along the column of intersections, and at least partially simultaneously receiving reflections from a second subsampled selection of second sampling locations along the row of intersections. The image values ​​for different locations are calculated by combining the vertical resolution from the subsampled transmitted ultrasonic signal and the horizontal resolution from the subsampled received ultrasonic signal. The range of subsampling locations for each intersection has a large overlap with the subsampling range for adjacent intersections, and the subsampling locations for different intersections exist at least partially scattered amongst each other within that overlap. The extension of subsampling locations across a large overlapping range ensures high resolution in the intersection image, and the use of different sampling points within that overlap reduces artifacts in the summed image.

The application discloses a kind of long-term characteristics acquisition methods of meteorological elements of low-altitude different height layer with ten-meter spatial resolution, belong to the meteorological environment evaluation field of low-altitude aircraft route. Steps are as follows: S1, obtain the long-term historical meteorological three-dimensional data of the low-altitude route area covered in the RuiTu forecasting system;S2, convert the terrain and building white film data into the shape of the underlying surface under the model, generate the grid of the calculation domain;S3, coupling forms RuiTu-PALM system;S4, using RuiTu-PALM system, carry out long-term three-dimensional numerical simulation of ten-meter precision historical meteorological elements, obtain low-altitude meteorological multi-year calculation data of different vertical height layers with ten-meter horizontal resolution;S5, enhance the meteorological characteristics, establish ten-meter precision low-altitude meteorological multi-year enhancement database.The application can achieve ten-meter high spatial resolution, and has long-term representativeness and universality, and can be used to guide the planning and optimization of various low-altitude aircraft routes.

A display apparatus, a control method, an electronic device, and a computer-readable storage medium. The display apparatus (300) comprises a display substrate (310) and a source driver (320). The display substrate (310) comprises a plurality of data signal lines. The source driver (320) comprises a first cache module (322), a second cache module (324), an operation conversion module (323), and an output module. The first cache module (322) comprises M first cache units used for caching N pieces of initial data at intervals; the second cache module (324) comprises M second cache units; the operation conversion module (323) is configured to send P pieces of initial data to P corresponding second cache units (324) on the basis of a control signal, performs calculation on the basis of Q pieces of initial data to obtain (M-P) pieces of interpolation data, and send the (M-P) pieces of interpolation data to (M-P) second cache units (324) other than the P second cache units (324); and the output module is configured to output to the plurality of data signal lines M pieces of data cached by M second cache units (324). The display apparatus can achieve horizontal resolution expansion of a dual-gate pixel architecture.

The invention provides an all-round dynamic holographic three-dimensional display system, which comprises a light source module used for generating red, green and blue three-color high-coherence parallel light; the color imaging device is used for respectively loading red, green and blue three-color holograms and generating reproduction light; the combined prism is used for realizing beam splitting of the illumination light and beam combination of the reproduction light; the filtering and amplifying module is used for performing single side band filtering on the reproduced light to remove zero-order light, a conjugate image and high-order diffraction order, and amplifying and imaging a hologram in the air to form a display screen; the rotary scanning module comprises a hollow or coaxial rotating motor and a scanning structure composed of a lens and a reflecting mirror, and is used for emitting light emitted by the display screen at an inclined angle and realizing 360-degree conical scanning in the horizontal direction and seamless splicing of the window through high-speed rotation; the directional holographic scattering film is arranged in the real image reconstruction area, only provides a scattering angle in the vertical direction, and is used for expanding a vertical visual angle without influencing the horizontal resolution; the synchronous control module is used for synchronously controlling the refresh rate of the color imaging device and the rotating speed of the motor; and the three-dimensional data processing module is used for generating and transmitting a holographic video sequence. The system can realize color dynamic three-dimensional display with 800 windows, 0.45-degree visual angle resolution and more than 24 frames per second, has the capabilities of aerial suspension imaging, no visual angle shielding, smooth motion parallax and multi-user naked eye viewing, and remarkably improves the immersion and practicability.

A projection system is provided. The projection system includes at least one micro LED line and a scan optical system. The micro LED line is configured for emitting lights with a changing frequency of X times per second. The scan optical system is disposed at a downstream side of the at least one micro LED line. The scan optical system is configured to scan the lights emitted from the micro LED line with a scan rate of M seconds per scan and to project images formed of the lights to corresponding positions on a target projection plane. The projection system has a horizontal resolution of N lines. A total number n of the at least one micro LED line is smaller than N. Also, X=M*(N / n).

The invention provides an image processing method, device and system. The method is applied to the image processing equipment, the image processing equipment comprises a first processor and a second processor, and the first processor is provided with a display interface; the method comprises the steps that a first processor writes a first image to be displayed into a frame buffer area, the resolution of the frame buffer area is matched with the resolution of the first image, the horizontal resolution of the first image is larger than the maximum horizontal resolution supported by a display interface, and / or the vertical resolution of the first image is larger than the maximum vertical resolution supported by the display interface; the first processor controls the display interface to output a second image to the second processor according to the first image in the frame buffer area, the horizontal resolution of the second image is smaller than or equal to the maximum horizontal resolution supported by the display interface, and the vertical resolution of the second image is smaller than or equal to the maximum vertical resolution supported by the display interface; the second processor transmits image data to the display device according to the second image, so that the display device displays the first image. According to the technical scheme, the image processing efficiency of the image processing equipment can be improved.

The invention discloses a coaxial multidirectional picture video output method for an ultra-high-definition camera, and the method comprises the steps: obtaining video data in real time through employing an image sensor of which the ratio of the horizontal resolution to the vertical resolution is 1: 1, and guaranteeing the output of a horizontal screen picture and a vertical screen picture of the maximum picture; equally dividing the real-time video data according to a frame sequence to generate odd frame data and even frame data; image processing including Bell interpolation, black level correction, noise reduction, distortion correction, color correction and the like is carried out on the odd frame data and the even frame data respectively, and then the processed data are coded to obtain corresponding vertical screen proportion data and horizontal screen proportion data. According to the invention, a path of full-resolution image data can be converted into a path of vertical screen proportion data and a path of horizontal screen proportion data. The method can be widely applied to the field of image processing.

A display device of the present disclosure may comprise: a system on chip (SOC) including an image processing processor for generating an image of a first resolution by processing an input image; a second scaler for performing up-scaling on the image; and a display. The display device can generate, by using the system-on-chip, an image having a first resolution with respect to a first input image, and then increase, by using a first scaler of the system-on-chip, the size of the image in the vertical direction by a vertical resolution value difference between the first resolution and a second resolution, increase, by using a second scaler, the size of the image in the horizontal direction by a horizontal resolution value difference between the first resolution and the second resolution with respect to the first input image, and output, through the display, the first input image converted to have a second resolution size.

Object image values for each position in the image of ultrasound reflectivity are computed by summing image values from images associated with selected cross-points of different rows and columns in an array of ultrasound transducers. The image value for each of these cross points is determined by transmitting ultrasound transmission signals from the ultrasound transducers at a subsampled first selection of first sampling locations along the column of the cross point and receiving reflections at least partly simultaneously from a subsampled second selection of second sampling locations along the row of the cross point. The image values for different locations are computed by synthesizing vertical resolution from the ultrasound sub-sampled transmission signals and horizontal resolution from the sub-sampled received signals. The ranges of sub-sampling locations for each cross point have large overlap with the sub-sampling ranges of for neighboring cross points, with the sub-sampling locations for different cross-points lying at least partly interspersed between each other in the overlap. The extension of sub-sampling locations over large overlapping ranges ensures high resolution in the cross-point images and the use of different sampling points in the overlap reduces artifacts in the summed image.

A system includes an inspection robot comprising a main body and at least one payload; a plurality of arms, where each of the plurality of arms is pivotally mounted to the at least one payload to rotate around respective ones of a plurality of axes while the inspection robot traverses an inspection surface in a direction of travel, and where at least one of the plurality of axes is in the direction of travel; a plurality of sleds mounted to the plurality of arms; a plurality of inspection sensors coupled to the plurality of sleds such that each sensor is operationally couplable to the inspection surface; and where the plurality of sleds are distributed horizontally at adjustable positions spaced apart from each other across the at least one payload to inspect the inspection surface at a selected horizontal resolution.

The invention provides a large-breadth segmented scanning recognition module. The large-breadth segmented scanning recognition module comprises a scanning lamp supporting plate. According to the large-breadth segmented scanning recognition module provided by the invention, through mutual cooperation of the scanning lamp supporting plate, the control fixing plate, the angle blocks, the scanning plate cover, the scanning control plate, the scanning lamp cover, the up-down adjusting plate, the front-back adjusting plate, the induction plate, the position positioner and the scanning lamp, the working speed and the recognition resolution of the scanning recognition module are improved; the power consumption of the scanning identification module is reduced, the enterprise cost is reduced, the linear scanning technology can carry out image acquisition at a high speed, the method is suitable for application scenarios where a large amount of image data needs to be rapidly acquired, and a linear scanner can carry out continuous scanning in a single direction, so that a high horizontal resolution can be realized; and the linear scanning technology generally has relatively low power consumption, so that the service life of a scanning tube of the equipment is prolonged or the energy consumption is reduced, and the equipment cost of the linear scanning technology is generally relatively low.

The invention discloses an unmanned aerial vehicle view field adjusting method, system and device and a computer storage medium, and relates to the technical field of unmanned aerial vehicles and photoelectricity. The object height of a binding target and the object distance between the binding target and the unmanned aerial vehicle are obtained; acquiring the horizontal resolution of the current sensor; based on the pixel value of the inherent recognition capability, the horizontal resolution of the sensor, the object height and the object distance, generating a horizontal view field value of a theoretical imaging field angle under the condition that the binding target meets the inherent recognition capability; adjusting the field of view of the airborne photoelectric equipment based on the horizontal field of view value of the theoretical imaging field angle; the pixel ratio is the ratio of the number of pixels to the horizontal resolution, and the view field ratio is the ratio of the imaging field angle to the horizontal view field angle. According to the invention, the ratio of the pixel number to the horizontal resolution is equal to the ratio of the imaging field angle to the horizontal view field angle, so that the view field of the unmanned aerial vehicle is adaptively adjusted according to the image target recognition capability.

The invention discloses a display panel and a display device. The display panel comprises a control module, at least one driving chip and a display area comprising z-framework pixel units, wherein the display area comprises display sub-areas controlled by the driving chips; the control module is used for receiving the row display data, grouping the row display data according to the number of the driving chips to obtain to-be-processed data corresponding to each driving chip, and transmitting the corresponding to-be-processed data to each driving chip; and the driving chip is used for performing resolution conversion processing on the to-be-processed data under the condition that the horizontal resolution of the display sub-region corresponding to the driving chip is not matched with the size of the to-be-processed data corresponding to the driving chip to obtain target display data, and driving the corresponding display sub-region based on the target display data. By adopting the display panel, under the condition that the display signal is not matched with the resolution of the display area, resolution conversion processing can be performed on the display signal, and normal display of the display area is driven.

The utility model belongs to the technical field of millimeter waves, and particularly discloses a virtual high-resolution millimeter wave antenna array, which comprises a receiving antenna array arranged at the upper part and a transmitting antenna array arranged at the lower part, a feeding point of the receiving antenna array is electrically connected with a receiving end of a TR assembly, a feeding point of the transmitting antenna array is electrically connected with a transmitting end of the TR assembly, and a feeding point of the receiving antenna array is electrically connected with a receiving end of the TR assembly. The receiving antenna arrays are arranged side by side at equal intervals, the distance between two receiving antennas in the horizontal direction is d, and the distance between two adjacent receiving antennas in the vertical direction is d; the distance between the transmitting antenna TX1 and the transmitting antenna TX2 in the horizontal direction is 3d, the distance between the transmitting antenna TX2 and the transmitting antenna TX3 and the distance between the transmitting antenna TX2 and the transmitting antenna TX4 in the vertical direction are d in sequence, the millimeter wave antenna array can provide high-precision horizontal resolution and vertical resolution, a large-angle horizontal resolution angle can be generated through the layout of the transmitting antennas, transmitting channels are switched through the TR assembly, and the transmission efficiency of the millimeter wave antenna array is improved. The target identification and tracking of a single target and multiple targets can be realized, and stable working mode switching in a complex environment can be satisfied.

The application discloses a tunnel earthquake advanced detection cave method, system, medium and equipment, and the method comprises the following steps: S1, a plurality of seismic sources and a plurality of geophones are arranged at equal intervals on one side wall of the tunnel, the plurality of geophones are located between the seismic sources and the tunnel face, and a plurality of geophones are arranged at equal intervals on the tunnel face, and the height of the geophones is consistent with that of the seismic sources; S2, each seismic source and all geophones are connected by equipment to form an earthquake advanced detection system, the seismic sources are sequentially excited, and actual observation data are acquired; S3, an initial velocity model is established, the Newton method is used to update the velocity model, and a final velocity model is obtained. The application combines the large-azimuth earthquake advanced observation system with the full waveform inversion method, overcomes the problem of low horizontal resolution of the traditional zero-offset, simultaneously uses the Newton method to replace the conjugate gradient method of the traditional full waveform inversion, further improves the calculation efficiency of the full waveform inversion, and is helpful to improve the tunnel advanced imaging precision.

This invention discloses a method for measuring distance and velocity based on trapezoidal wave optical frequency-modulated continuous wave, including a target object, a lidar, and an analog-to-digital converter. The frequency value of the beat signal at the rising edge is denoted as f1, the frequency value at the falling edge as f2, and the frequency value of the beat signal in the invariant region as fd. The beat signal is sampled by a data acquisition card, yielding two main frequency values: f+ and f-, where f+ is the highest peak frequency and f- is the second highest peak frequency, i.e., f+ > f-. This method improves the range and velocity measurement limits without changing the hardware, without sacrificing horizontal resolution or frame rate. Furthermore, the sum of the highest Doppler frequency and the distance frequency that can be sampled is no longer limited by the Nyquist frequency, but can instead reach the sampling frequency of the analog-to-digital converter. The two trapezoidal waves used in this method are equivalent, and the waveforms are easy to implement.

The present application relates to renewable energy assessment and weather forecasting technical field, especially to a kind of wind and light resource fine estimation method based on numerical simulation and observation constraint. Global climate model driving field set is constructed, and the optimal GCM combination is screened out;Regional climate model framework is constructed;High spatio-temporal resolution simulated wind speed and solar radiation data are obtained;Generate kilometer level, hourly wind and light resource data set of history and future. The present application provides a kind of wind and light resource fine estimation method based on numerical simulation and observation constraint, by introducing high resolution, multi-source fusion ground surface wind speed and solar radiation long sequence historical observation data, using quantile mapping method to carry out systematic deviation correction to simulation result, realize statistical downscaling processing under the observation data constraint, finally obtain the wind resource data with 5 kilometers horizontal resolution, so as to significantly improve the high spatio-temporal resolution information capture ability to future wind resource change.

The invention relates to the technical field of renewable energy evaluation and weather forecast, in particular to a wind and light resource refined estimation method based on numerical simulation and observation constraint. Constructing a global climate mode driving field set, and screening out an optimal GCM combination; constructing a regional climate mode framework; acquiring simulated wind speed and solar radiation data with high temporal-spatial resolution; and generating kilometer-level hour-by-hour historical and future wind and light resource data sets. According to the wind and light resource fine estimation method based on numerical simulation and observation constraint provided by the invention, systematic deviation correction is carried out on a simulation result by introducing high-resolution and multi-source fusion earth surface wind speed and solar radiation long sequence historical observation data and adopting a quantile mapping method; statistical downscaling processing under the constraint of observation data is achieved, wind resource data with the horizontal resolution reaching 5 kilometers are finally obtained, and therefore the capacity of capturing high-temporal-spatial-resolution information of future wind resource changes is remarkably improved.

The invention relates to the technical field of optics, and discloses an optical assembly, a spectroscope assembly intersects with a first light path, the spectroscope assembly comprises a first spectroscope and a second spectroscope, the first spectroscope intersects with a first light beam to transmit a first split light in the first light beam, and the second spectroscope intersects with a second light beam to transmit a second split light in the second light beam. The light modulator intersects with the first split light and the second split light to modulate phases of the first split light and the second split light, and the lens assemblies are arranged on the second light path and the third light path respectively to amplify and rotate the first split light and then project the first split light to the first area to form a first pattern. The second split light is projected to the second area after being amplified and rotated, a second pattern is formed, the transverse resolution ratio of the first pattern and the second pattern is larger than the longitudinal resolution ratio, and the first pattern and the second pattern are combined to form a long-strip-shaped picture. The invention provides an optical assembly for improving transverse resolution and picture and a head-up display system.

The purpose of the feature disclosed in the specification of the present invention is to achieve both a wide dynamic range and high spatial resolution.　This distance-measuring device is provided with a light-receiving sensor, a light-emitting unit, a light-projecting optical system, a deflector, and a light-receiving optical system. The light-receiving sensor has a plurality of single photon avalanche diodes arranged in a grid. The light-emitting unit emits a light projection beam. The light-projecting optical system forms a light projection spot of the light projection beam on the surface of the object. The light-receiving optical system forms a light-receiving spot on the light-receiving sensor by forming an image of the light projection spot on the light-receiving sensor. The size of the light projection spot in the secondary scanning direction is larger than the size of the light projection spot in the main scanning direction. The single photon avalanche diodes are divided into a plurality of regions arranged in the vertical direction. The horizontal resolution of the light-receiving spot is lower than the vertical resolution of the light-receiving spot.

The application discloses a three-dimensional seismic high-resolution enhancement method based on adaptive reflection coefficient, comprising the following steps: S10, obtaining a three-dimensional seismic data body; S20, constructing a reflection coefficient prior probability model through multi-scale dictionary construction and statistical feature extraction; S30, adaptive matched filtering: obtaining a data body with Q compensation and reflection feature enhancement through time-varying filter and directionality compensation on the original three-dimensional seismic data body and a Q field model; S40, three-dimensional anisotropy enhancement: obtaining enhanced data through structure tensor field calculation and tensor-driven diffusion on the data body in S30; S50, joint inversion optimization: using the reflection coefficient prior probability model and the enhanced data to perform joint inversion to obtain a final high-resolution seismic body. The three-dimensional processing technology fuses physical mechanism and data driving and considers vertical and horizontal resolution improvement, and aims to solve the contradiction between resolution improvement and geological authenticity maintenance in three-dimensional seismic data processing.

The invention provides an image processing method, device and system. The method is applied to the image processing equipment, the image processing equipment comprises a first processor and a second processor, and the first processor is provided with a display interface; the method comprises the steps that a first processor receives first topological information of a display device, the resolution of the display device corresponding to a first topological structure is a first resolution, the horizontal resolution of the first resolution is larger than the maximum horizontal resolution supported by a display interface, and / or the horizontal resolution of the first topological structure is larger than the maximum horizontal resolution supported by the display interface; the vertical resolution of the first resolution is greater than the maximum vertical resolution supported by the display interface; the first processor determines the resolution of the frame buffer and the output resolution of the display interface according to the first topological information, the resolution of the frame buffer and the output resolution of the display interface are both second resolution, and the horizontal resolution of the second resolution is smaller than or equal to the maximum horizontal resolution supported by the display interface; the vertical resolution of the second resolution is smaller than or equal to the maximum vertical resolution supported by the display interface. According to the scheme, the error rate in the display equipment configuration process can be reduced.

The invention provides a display apparatus, a control method, an electronic device, and a computer readable storage medium. The display device (300) comprises a display substrate (310) and a source driver (320), the display substrate (310) comprises a plurality of data signal lines, the source driver (320) comprises a first cache module (322), a second cache module (324), an operation conversion module (323) and an output module, and the first cache module (322) comprises M first cache units used for caching N initial data at intervals; the second cache module (324) comprises M second cache units; the operation conversion module (323) is configured to send the P initial data to the corresponding P second cache units (324) according to the control signal, calculate (M-P) interpolation data based on the Q initial data, and send the (M-P) interpolation data to the (M-P) second cache units (324) except the P second cache units (324); the output module is configured to output the M data cached by the M second cache units (324) to a plurality of data signal lines. According to the display device, the horizontal resolution expansion of a dual gate pixel framework can be realized.