334 results about "Spatial direction" patented technology

The invention discloses a hand-eye calibration method suitable for a five-axis series-parallel mechanical arm, which comprises the following steps of: analyzing coordinate conversion error distribution characteristics according to an initial hand-eye calibration matrix calculation result, and separating a total error into two components, namely a translation error and a rotation error through an error vector decomposition algorithm, obtaining distribution rules and variation trends of the errors in different spatial directions; establishing a calibration precision evaluation system according to the verification result, calculating the repeated positioning precision and the absolute positioning precision of the system by counting and analyzing the position deviation data of multiple tests, and obtaining the system performance index in the current calibration state; a self-adaptive updating mechanism is established for system performance indexes, local updating of calibration parameters is automatically triggered when environment temperature change or small deformation of a mechanical structure is detected, and a compensation model is adjusted in an incremental learning mode to avoid comprehensive recalibration.

The invention relates to the technical field of image data processing, in particular to an aluminum material surface oxidation film defect detection method and system. The method comprises the steps that surface images of the surface of the aluminum material at multiple angles are collected through a preset rotary shooting device; constructing a gray difference feature vector of each pixel point according to spatial direction vectors and gray value difference features of each pixel point and neighborhood pixel points in the surface image; acquiring matched pixel points of the pixel points at different angles by utilizing a pixel point matching relationship; determining a reflection characteristic change vector according to the gray difference characteristic vector difference characteristic between the matched pixel points under the adjacent angles; determining a defect probability value of the corresponding physical position point according to the modulus length change characteristic of the reflection characteristic change vector; and marking the pixel points of which the defect probability values are not lower than the abnormal threshold value as abnormal pixel points, clustering the abnormal pixel points to obtain the defect area, and performing grade marking on the defect area in the surface image, thereby improving the defect identification accuracy.

The invention relates to an AR (Augmented Reality) space true north calibration method, device and equipment and a medium. The method comprises the following steps: acquiring fixed solution positioning data in a moving process by utilizing RTK (Real-Time Kinematic) equipment; based on the fixed solution positioning data, selecting a first positioning point and a second positioning point, calculating a coordinate azimuth angle between the two positioning points by using Gaussian positive and negative calculation, and calculating a meridian convergence angle at the first positioning point; calculating an included angle between a connecting line of the first positioning point and the second positioning point and the true north direction based on the coordinate azimuth angle and the meridian convergence angle to obtain a geographic true north direction angle; and continuously monitoring data of a gyroscope of the RTK equipment and a gyroscope on the AR running equipment, and dynamically adjusting the true north direction angle in the AR space by adopting a double-loop control structure based on the geographic true north direction angle, so as to ensure that the AR space is consistent with the true geographic direction. Compared with the prior art, the method has the advantages that the AR space direction precision is improved from + / -5 degrees to + / -0.1 degrees, and the surveying and mapping standard is achieved.

The invention relates to the technical field of laser radars, and provides a laser radar angular resolution enhancement method, which comprises the following steps of: obtaining a spatial direction priority according to a vehicle course, road information and target information obtained by a vehicle external sensor so as to dynamically adjust laser pulse density and energy level; scanning data generated after N circles of continuous scanning serve as a composite frame, the starting angle of each circle is shifted, multiphase filtering and coherent superposition are conducted in a digital domain, and the effective angular resolution is obtained. The invention further discloses a laser radar device, the method and the device can adjust the pulse density and energy distribution in the ROI direction in real time according to the dynamic scene of the vehicle, the total pulse number is kept unchanged, and the total power consumption is not increased. The effective horizontal angle resolution is improved through inter-frame phase offset and multi-phase synthesis. A corner reflector and an IMU (Inertial Measurement Unit) are integrated in the laser radar, and phase and ranging errors are corrected in real time through periodic loopback calibration, so that the angle stability is kept.

The invention belongs to the technical field of remote sensing image segmentation, and particularly relates to a double-branch water body small target image segmentation method based on feature efficient interaction, which comprises the following steps: preparing a data set, constructing a network model, training the network model, selecting a proper loss function and evaluation index, and determining a segmentation model. According to the multi-scale detail feature interactive aggregation encoder, efficient fusion of multi-scale features and effective supplement of implicit relative position encoding information are achieved; the long-distance feature efficient capture encoder increases the edge segmentation effect on the small target image of the water body by processing features along a specific space direction; the cavity space convolution pyramid module based on the large convolution kernel is used for improving the ability of the model to learn a large-scale effective receptive field; the non-significant feature extraction module is used for filling up the deficiency of non-significant features. The whole network adopts a learning strategy of parallel connection of global and local features and series connection from a large scale to a small scale, and effectively extracts different scale information of the water body image.

The invention discloses an ISAC angular domain energy imaging method and an ISAC angular domain energy imaging system based on actual measurement channel response calibration ray tracing, and mainly solves the problem that an imaging model faces serious channel mismatch and cross-scene generalization limitation due to the fact that simulation data lacks physical consistency constraint in the prior art. According to the scheme, the method comprises the steps that geometric features are extracted from public map data or laser point cloud data, and an ISAC scene environment geometric model is constructed; acquiring an actual measurement channel impulse response containing multipath information by using the communication and sensing integrated equipment; performing path matching on the actual measurement channel impulse response and the ray tracing simulation channel response, inverting environment propagation parameters and correcting scattering parameters; and inputting the calibrated parameters into a ray tracking model, counting energy contribution in each space direction under the condition of a single antenna, obtaining angular domain energy distribution and confidence coefficient, and mapping the angular domain energy distribution and confidence coefficient to a spherical grid to form an imaging result. According to the method, physical mismatch between simulation and real environments is effectively eliminated, low-cost and high-precision angular domain energy imaging and confidence evaluation are realized under the condition of a single antenna, and the method can be used for imaging reconstruction of an ISAC system, environmental perception and generation of a neural network training data set.

A method is disclosed of a transmitter configured to transmit more than one spatially multiplexed streams having a multi-user physical layer packet for a plurality of users. The plurality of users includes a first type user and a second type user. A first stream is assigned for the first type user and a second stream is assigned for the second type user. The method includes leaving a data field of the physical layer packet empty for the first type user, providing second type user emission strength (in a spatial direction towards the first type user) that falls below a threshold value by controlling a spatial emission pattern associated with the second type user for the physical layer packet, and transmitting the physical layer packet.

The invention relates to the technical field of trailing vortex dynamic monitoring, in particular to a short-distance parallel runway wake flow dynamic prediction method based on deep learning, which comprises the following steps of: acquiring disturbance energy level and coordinate direction and fitting propagation state, extracting disturbance source features and combining with spatial direction constraint, fitting boundaries according to propagation included angle and speed change rate and classifying, and obtaining a dynamic prediction result. Acquiring a track coordinate course angle and a flight speed, calculating a track vector and a boundary normal included angle, analyzing an interference risk factor in combination with a ratio of the speed to a propagation direction, dividing disturbance levels, and outputting a preliminary prediction result. According to the method, the state vector and the disturbance data cooperatively extract features and constrain the direction, the disturbance source positioning precision is improved, the boundary is described by combining the speed change rate and the propagation included angle, the recognition robustness is enhanced, the risk level is evaluated by fusing multi-dimensional parameters, the disturbance intensity is dynamically corrected, the track deviation is introduced, and the prediction accuracy and the response efficiency are improved.

A quad-polarized antenna system according to the present invention comprises a plurality of RF chains, and an antenna array in which rows of first dual-polarized antenna units and rows of second dual-polarized antenna units are alternately arranged in a horizontal direction. The first dual-polarized antenna unit and the second dual-polarized antenna unit have different dual polarization characteristics from each other. The rows of first dual-polarized antenna units are used to form at least one first beam and at least one second beam which have + / −45° polarizations, and the rows of second dual-polarized antenna units are used to form at least one third beam and at least one fourth beam which have 0° / 90° polarizations. The first beam, the second beam, the third beam, and the fourth beam are formed towards different spatial directions, and the first and third beams correspond to main lobes, and the second and fourth beams correspond to grating lobes.

An optical system (200, 300, 400, 500) comprising a component (202), a support structure (204) for supporting the component (202), a vibration decoupling unit (206) for decoupling the component (202) from a vibration of the support structure (204), wherein the vibration decoupling unit (206) comprises a first spring element (208) connected to the component (202), a second spring element (210) connected to the support structure (204), an intermediate mass (212) connected to the first spring element (208) and the second spring element (210), and a coupling mass (214, 502, 504), wherein the coupling mass (214, 502, 504) is connected to the component (202) via at least one flexible element (216, 302, 304, 506, 510). intermediate mass (212) is connected, and wherein the flexible element (216, 302, 304, 506, 510) has an asymmetric stiffness (c) considered in at least two spatial directions (x, y). x , c y ) exhibits.

An optical system (100) for a projection exposure system (1), comprising an optical element (104, 106, 108), and a mount (132) which supports the optical element (104, 106, 108), wherein the mount (132) has a displacement device (138) which is configured to displace the optical element (104, 106, 108) linearly along exactly one spatial direction (152, 154, 156) in the event of a heat-induced deformation of the mount (132).

The invention belongs to the technical field of multi-modal vehicle obstacle avoidance, and relates to a multi-modal vehicle 4D dynamic obstacle avoidance method, which comprises the following steps: taking an air-ground amphibious vehicle, namely a multi-modal vehicle as a center, constructing a plurality of concentrically increasing sphere safety domains which respectively correspond to a collision avoidance area, an early warning area and a trajectory prediction area, the space-time position and the movement track of a dynamic obstacle are monitored and predicted in real time, a three-dimensional space is divided into eight quadrants according to the flight direction based on the current course of a multi-mode vehicle, different sensing priorities and obstacle avoidance strategies are given to the front quadrant, the side quadrant and the rear quadrant, and particularly, the front quadrant, the side quadrant and the rear quadrant have different sensing priorities and obstacle avoidance strategies. Dynamically adjusting the risk level and the obstacle avoidance response according to the relative speed and the movement trend of the obstacle, and carrying out hierarchical and regional risk perception and management on the dynamic obstacle in different space directions and distance ranges; the method is scientific and reliable in principle, and is suitable for a multi-body cooperative obstacle avoidance scene in an urban low-altitude traffic environment.

The invention discloses a multi-modal speech enhancement method and device based on a deep learning model, and relates to the technical field of artificial intelligence, and the method comprises the steps: obtaining the head posture data, binaural audio signals and visual context information of a user in a virtual reality environment, coding the binaural audio signals into three-dimensional space acoustic features, and carrying out the coding of the three-dimensional space acoustic features; and extracting virtual sound source position features and lip motion features from the visual context information, inputting the features into an immersive fusion enhancement network, selectively enhancing or inhibiting acoustic features from different spatial directions, generating an enhanced audio stream, and outputting the enhanced audio stream through a binaural rendering engine. According to the method, the technical problems that in the prior art, due to the fact that multi-modal prior information cannot be effectively fused, voice enhancement lacks spatial selectivity, and an interference sound source irrelevant to vision is difficult to restrain are solved, and head posture dynamic attention and lip motion cross-modal constraint are fused; the technical effects of natural binding of auditory attention and a visual focus and effective suppression of an interference sound source are achieved.

A device (14) and a method for measuring wafers (10), comprising an optical coherence tomograph (22) configured to generate a measuring light beam (24) and direct it onto the wafer (10) via an optical system (38), a scanning device (26) configured to deflect the measuring light beam (24) in two spatial directions, a control unit (36) configured to control the scanning device (26) so that the measuring light beam (24) successively scans the surface of the wafer (10) at several measuring points, and an evaluation unit (57) configured to calculate distance values ​​and / or thickness values ​​from interference signals provided by the optical coherence tomograph (22), and a camera (80) configured to capture an image of the surface of the wafer (10), wherein the camera (80) images camera light (83).which has passed through the optical system (38) at least partially from the wafer (10).

To provide a temperature environment diagnostic device and a temperature environment diagnostic method for a factory that are capable of easily identify the locations of factors that may cause temperature changes in the installation environment of equipment in the factory.SOLUTION: A temperature environment diagnostic device comprises: a plurality of temperature sensors that acquire temperature information of machining centers; a position information acquisition unit 10 that acquires installation position information and installation direction information of the machining centers in the factory; a temperature difference change amount calculation unit 11 that uses the temperature information to calculate an amount of change in temperature difference among the temperature sensors; a spatial direction vector calculation unit 12 that uses the temperature information and the calculated amount of change in temperature difference to calculate a spatial direction vector that indicates a direction in which a factor that may cause the change in the temperature difference for the machining center is presumed to exist; and a presentation unit 13 that presents the spatial direction vector of the machining center in the factory from the calculated spatial direction vector of the machining center and the acquired installation position information and installation direction information.SELECTED DRAWING: Figure 2

The application provides a virtual-reality-based pronunciation device space direction parameter acquisition method, which only needs to perform parameter analysis on a reference pronunciation direction set, does not need to process remaining data in reference sound source data, can reduce the sound source data processing workload, can guarantee the accuracy of the sound source data to be processed, and reduces the data processing workload on the premise of reducing the sound source data to be processed. Moreover, since only the sound source data of the reference pronunciation direction set needs to be processed, the parameter recognition accuracy of the recognized pronunciation direction can be improved, so that the pronunciation direction parameter can be more accurate.

To provide a game program, a game processing method, a game system, and a game device of a ball game for performing control based on movement of an operation device by preventing an influence of a way of holding the operation device.SOLUTION: The correspondence between a direction in space and a direction with an operation device as a reference is set and updated according to a position of the operation device around a predetermined shaft on the basis of operation data at least including velocity data and angular velocity data in a ball game, a position regarding a pitch in space of the operation device is specified, a player character possessing a ball is moved when a first condition regarding at least one of acceleration data and angular velocity data in a vertical direction within space is satisfied, and shooting operation for releasing a ball to the player character is performed when a second condition regarding a position regarding a pitch within space and at least one of acceleration data and angular velocity data is satisfied.SELECTED DRAWING: Figure 30

Method for imaging at least one beam (1) of electromagnetic radiation onto an object (2), wherein the beam (1) is deflected via its beam path (3) by an optical arrangement (4) by means of an optical scanner system (5) of the optical arrangement (4), comprising at least two optical scanners (6), at least twice with a predetermined and / or predefinable variable angle, each time changing the beam path (3) of the beam (1), and the beam (1) is not subject to refraction between each deflection, the beam (1) is also imaged onto the object (2) by means of an imaging optic (7) after its deflection, and a focus area (8) of the beam (1) is placed on and / or into the object (2) by means of the imaging optic (7).by means of the scanner system (5) at least one pivoting movement of a beam segment (9) of the beam (1) exiting the scanner system (5) is generated and the pivoting movement and / or at least a rotational movement (15) about the pivot point (10) causes a movement of the focus area (8) in at least one spatial direction (X, Y) perpendicular to the optical axis of the imaging optics (7), characterized in that during the pivoting movement the pivot point (10) of the beam segment (9) lies in the beam path (3) in the imaging optics (7) and beam shaping is imposed on the beam (1) via its beam path (3) by means of a beam shaping optic (16) by the optical arrangement (4), so that a focus area (8) extended in the direction of the beam path (3) is imaged on and / or in the object (2), which extends over at least a part of the dimension of the object (2) formed in the direction of the beam path (3).

A back-of-hand scanner (1) with an optical reading device (26) for reading a barcode on an object in a reading direction (7) in front of the back-of-hand scanner (1) and a trigger (27) which has an optical distance sensor (33) and triggers the reading device (26) when the distance sensor (33) detects a distance of the back-of-hand scanner (1) to the object below a limit distance, characterized in that the trigger (27) has an inertial sensor which includes acceleration and rotation rate sensors and detects translation in three independent spatial directions and rotation about the spatial directions and triggers the reading device (26) only when the inertial sensor detects a linear movement of the back-of-hand scanner (1) in the reading direction (7), wherein the trigger (27) blocks the triggering of the reading device (26) when the inertial sensor detects a rotation of the back-of-hand scanner (1).

The invention relates to an agricultural machine (1), preferably a combine harvester or forage harvester, with a visualization device (3) designed to display image data and process data. The machine (1) has a monitoring device (10) with a camera system (11, 12, 13, 14, 15) for capturing fields of view (21, 22, 23, 24, 25) in the vicinity of the machine (1), a cleaning system (18) for cleaning the camera system (11, 12, 13, 14, 15) and a data processing unit (20), wherein the data processing unit (20) is configured to generate context-relevant process data of the machine (1) and image data, each based on the captured fields of view (21, 22, 23, 24, 25), and wherein cameras (11.1, 11.2, 11.3) of the camera system (11, 12, 13, 14, 15) are mounted on at least one support structure (5) of the machine (1) and with a fixed spatial orientation. The arrangement is intended to be attached to each other.The invention further relates to a method for operating.

This invention discloses an elastic wave reverse-time migration imaging method guided by stratigraphic dip angle for wavefield separation, relating to the field of seismic exploration technology. The method includes: acquiring an initial velocity model, source wavefield data, and receiver wavefield data for the target geological area; determining multiple stratigraphic dip angles reflecting the trend of subsurface structural changes based on the initial velocity model, and accordingly determining multiple target spatial directions; sequentially resampling, interpolating, and performing Hilbert transform on each wavefield data along each target direction to obtain source wavefield components and receiver wavefield components consistent with each direction; for any subsurface point to be imaged, determining the target spatial direction based on the stratigraphic dip angle corresponding to its vertical position, selecting wavefield components consistent with that direction for zero-delay cross-correlation calculation, thereby obtaining the reverse-time migration imaging result for that point. This method possesses good engineering feasibility and scalability, can be seamlessly embedded into existing pre-stack elastic migration workflows, and is convenient for the promotion and application of two-dimensional / three-dimensional and heterogeneous parallel computing.

This invention discloses a BIM-based method and system for calculating the quantity of outdoor pipe trenches, comprising: reading pipe parameters from the BIM model of the pipe components through a preset script program; automatically calculating the cross-sectional dimensions of the pipe trench based on the pipe diameter by calling a pre-constructed pipe trench cross-sectional parameter rule model; generating a pipe trench cross-sectional contour family by calling a parametric family library based on the pipe trench cross-sectional dimensions and the spatial direction coordinates of the pipe, and stretching the path along the pipe direction to generate a three-dimensional pipe trench model consistent with the pipe path; acquiring the volume data of the three-dimensional pipe trench model, calculating the excavation quantity of the pipe trench based on the volume data, and setting the excavation quantity into preset attribute fields to achieve dynamic statistics of the quantity. This invention can reduce the manual drawing and calculation process, improve the efficiency and accuracy of quantity calculation, realize the linkage update of model and data, and enhance the automatic adaptation capability to standard parameters.

An arrangement for spatially resolving touch detection, comprising a first electrically conductive detection surface (1) and at least one electrically conductive supplementary detection surface (10-13; 21-28), wherein: the at least one supplementary detection surface (10-13; 21-28) is designed to temporarily extend a detection region of the first detection surface (1); the supplementary detection surface (10-13; 21-28) is arranged next to the first detection surface (1) and is designed to be temporarily switched for spatially resolving touch detection and / or the supplementary detection surface (10-13; 21-28) is arranged so as to overlap the first detection surface (1) partially or in one spatial direction, in particular is arranged at a distance therefrom in another spatial direction, and is designed to be temporarily switched for spatially resolving touch detection.

A printhead (1) for parallel extrusion of printing medium, in particular for the production of conductive traces, is proposed, with a printing medium inlet (4) for the printing medium, which is fluidly connected to a plurality of output openings (5) of the printhead (1), for the simultaneous output of printing medium from the output openings (5). wherein the printhead (1) has a base unit (2) with the print medium input (4) and with a print medium output (6) as well as an output unit (3) detachably arranged on the base unit (2), wherein the output unit (3) has a connection area (7) via which it is connected or connectable to the base unit (2) in the area of ​​the pressure medium outlet (6), and has the plurality of output openings (5) for the pressure medium, which output openings (5) are fluidly connected to the pressure medium outlet (6) in a connected state of output unit (3) and base unit (2), which printhead (1) is characterized by the fact that in the area of ​​the pressure medium outlet (6) and the connection area (7) a flow path (F1) of the pressure medium is oriented in a first spatial direction (y) and in the area of ​​the output openings (5) the flow path (F2) of the pressure medium is oriented in a second spatial direction (z), wherein the second spatial direction (z) differs from the first spatial direction (y).

The present invention relates to a processing machine (100), in particular a woodworking machine, comprising at least one processing unit (10) with at least one processing unit (1) and at least one conveying unit (20) for conveying at least one workpiece to be processed along a feed direction (x) through the processing machine (100). It further comprises a marking unit (30) for applying at least one marking to at least one side of a workpiece to be processed or processed, wherein the marking unit (30) has a marking head (3) on which at least one marking device (31, 32, 33), in particular a writing device, is arranged. The marking head (3) is resiliently mounted in at least one spatial direction and / or the at least one marking device (31) is resiliently mounted on the marking head (3) in at least one spatial direction.The marking head (3) is designed to apply at least one marking to the workpiece by being placed on a surface of the workpiece under preload of the spring-loaded bearing and is movable relative to the workpiece in at least one spatial direction (x, y, z). Furthermore, the invention relates to a method for applying at least one marking to a workpiece and to the marking unit itself.

This invention relates to a measuring device, a scanning probe microscope, and a method for testing a sample. The measuring device for a scanning probe microscope includes: a sample receiving portion configured to receive a sample to be tested; a measuring probe disposed on a probe holder and having a probe tip, the sample being measured using the probe tip; a displacement device configured to move the measuring probe and the sample receiving portion relative to each other for measuring the sample, such that the measuring probe performs a scanning motion relative to the sample in at least one spatial direction for measuring the sample; a control device connected to the displacement device and controlling the relative motion between the measuring probe and the sample receiving portion; and a sensor device configured to detect a motion measurement signal of the actual motion of the measuring probe and / or the sample receiving portion and transmit the motion measurement signal to the control device.

A test arrangement for a sensor, which is designed to detect objects by sending first electromagnetic signals and receiving second electromagnetic signals. The test arrangement has a chamber with a receptacle for the sensor. The chamber has at least two transmission / receiving devices which are configured to receive first signals transmitted from the sensor to the chamber and to transmit second signals for reception for the sensor. The at least two transmission / receiving devices each have an emitting element for emitting the second signals, wherein a spacing device is provided via which the distance of the at least two emitting elements from one another can be changed in exactly one spatial direction.

The invention relates to the technical field of computer technology and geological survey, in particular to a geological survey method based on big data. The method comprises the following steps: acquiring geological survey data of a sub-region, respectively preprocessing data of different data sources, and integrating basic feature vectors of the different data sources obtained by preprocessing; constructing a geologic structure map based on the fused feature vectors of the sub-regions obtained through integration, and introducing an edge weight construction mechanism combining a spatial adjacency relation and feature similarity to obtain edge weights among the sub-regions; and based on the edge weight between the sub-regions, introducing a directivity and edge weight joint modulation mechanism, carrying out node feature propagation, and predicting a geological structure category. The problems that a traditional geological survey method cannot accurately evaluate the credibility of each data source during fusion, neglects the correlation between the regions on the feature level, and is difficult to sense the composite action of the spatial direction difference between the regions and the edge connection strength on the propagation path are solved.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit one or more indications, wherein at least one of the one or more indications indicates a latency associated with switching a spatial direction of an antenna. The UE may receive a configuration. The UE may transmit or receive a communication in accordance with the configuration and the one or more indications. Numerous other aspects are described.

The invention belongs to the field of computer vision, and particularly relates to a multi-mode CNN-Transform fused image tampering detection method, which designs a CNN and Transform double-flow parallel feature extraction structure, effectively combines the advantage of CNN at capturing fine local features and the advantage of Transform in capturing long-distance dependency relationship and global semantic information, and improves the accuracy of image tampering detection. Local details and global tampering features in the image can be sensitively perceived at the same time, so that the detection capability and stability of image tampering are effectively improved. Processing the noise domain image filtered by the SRM through a CNN (Convolutional Neural Network), and capturing local texture and noise artifact features; meanwhile, a Transform branch processes an RGB spatial domain image, extracts rich global semantic information, and realizes deep interaction and advantage complementation of two types of modal information through a feature fusion module. The BAFM module provided by the invention can deeply mine feature information of different scales and different spatial directions, and more accurate spatial attention features are generated, so that the sensitivity and expression ability of the network to tampered regions are improved.