415 results about "Illumination angle" patented technology

The invention provides a sea surface target tracking method and system based on infrared and visible light image fusion, and relates to the technical field of ocean monitoring, and the method comprises the steps: collecting visible light and infrared image data of a sea surface target; performing feature extraction and fusion through wavelet transform fusion to generate a comprehensive feature map, and performing target recognition on the comprehensive feature map by using a deep learning target detection model; after target recognition, the system calculates the position of a target based on image data and radar data, performs multi-target matching and association through a Hungary algorithm combined with multi-modal features, predicts the position of the target and updates trajectory information in combination with a Kalman filtering or particle filtering algorithm. The infrared camera and the visible light camera carry out dynamic angle adjustment according to the position and the movement track of the target; whether light information correction is carried out or not is judged based on the light correction threshold value, when light information correction is carried out, light information correction features are constructed based on the visible light compensation model and the infrared compensation model through the image data, and information errors caused by the illumination angle are eliminated.

The invention relates to the technical field of metal defect detection, and discloses an aluminum alloy round aluminum rod surface defect image super-resolution method. The method comprises the following steps: acquiring a low-resolution original image sequence of surface defects of the aluminum alloy round aluminum rod, and synchronously acquiring gray value distribution at different illumination angles through a multi-channel optical sensor; constructing a dynamic degradation model according to pixel displacement of adjacent frames in the original image sequence, extracting cross-scale defect features in the original image sequence, and taking output parameters of the dynamic degradation model as spatial constraint conditions of a feature extraction network; and a high-resolution defect image is generated through the multi-stage residual error reconstruction network, the high-resolution image output by the reconstruction network is fed back to the dynamic degradation model, and the frequency domain response coefficient of the spatial fuzzy kernel function is updated to form closed-loop optimization. The identification degree of defect features is improved, and a reliable image data basis is provided for accurate detection of the surface defects of the aluminum alloy round aluminum rod.

A walk-behind mower has a mower deck, a plurality of wheels, a head, and a plurality of light sources. The wheels are rotatably coupled to the mower deck. The wheels move the walk-behind mower over a support surface in a forward direction and a rearward direction. The head is coupled to the mower deck. The head can store at least one battery pack. The light sources are coupled to at least one of the mower deck and the head. The light sources project light through a continuous illumination angle about the walk-behind mower. The illumination angle extends along an arc from the forward direction toward the rearward direction and is at least 90 degrees.

The invention discloses a face posture recognition method, an anti-dazzle lamp regulation and control method, a lamp, equipment and a medium, and relates to the technical field of lamp control. According to the method, firstly, face region recognition is performed based on the integral image corresponding to the video image, then the face image is intercepted from the video image according to the recognition result, and then face pose recognition is performed based on the trained CNN model and the trained backbone network model, so that recognition of each face pose in the target scene is realized, and the recognition efficiency is improved. And then the irradiation angle and brightness of the lamp are adjusted based on the recognized face posture, and adaptive adjustment of the glare problem is achieved.

The present application discloses a method and system for identifying internal surface defects of a nuclear reactor pressure vessel, a computer device, and a computer-readable storage medium. The method comprises: collecting image data of the surface of a pressure vessel; constructing an illumination angle attention mechanism, using an image in a data set to establish a feature map, and producing a spatial attention map on the basis of a spatial relationship of the feature map; and using the illumination angle attention mechanism to improve a YOLOv5 model, and identifying surface defects of the pressure vessel by means of the improved YOLOv5. The present application has the characteristics of high defect identification efficiency, low missed detection rate, etc. The present application can effectively cope with common problems when defect detection is performed under different illumination conditions. This precise defect localization and identification capability is critical for ensuring safe operation of pressure vessels, particularly during routine maintenance and inspection.

The invention provides an intelligent self-adaptive lighting system based on environmental perception and behavior recognition, relates to the technical field of self-adaptive lighting control, and aims to determine an illumination perception rule during adaptive adjustment of the brightness of a lighting source in a target area according to a lighting adjacent path and dynamic atmosphere information, perform layered compensation on the illumination perception rule, and improve the brightness of the lighting source in the target area. Obtaining an adaptive compensation strategy when the illumination angle of the illumination light source is adjusted; according to the posture activity index and the behavior response index, determining a state partition constraint when the illumination light source in the target area carries out illumination partition decision making along with the user motion trail, and determining a light color rheological characteristic when the illumination light source carries out color temperature switching according to the state partition constraint; and carrying out self-correction matching on the illumination demand mode in the illumination environment of the target area according to the adaptive compensation strategy and the light color rheological characteristics. According to the invention, linkage self-correction control can be carried out on the illumination mechanism of the illumination light source, so that the real-time response capability of the intelligent illumination system under the driving of complex space behaviors is improved.

The invention belongs to the technical field of intelligent control, and particularly relates to a lamplight illumination angle intelligent control system and method. The problems that an existing lighting strategy is disjointed with user requirements, lighting resources are wasted, and experience is poor are solved. The system constructs a dynamic semantic scene graph through multi-modal perception, identifies a user task intention, generates a parameterized illumination body, drives a multi-degree-of-freedom mechanism to regulate and control a light beam angle, convergence, dispersion and light color, and performs closed-loop correction on an illumination effect. The method can achieve the deep understanding of the environment and the recognition of the task intention, improves the illumination precision and energy efficiency, optimizes the user experience, and guarantees the illumination stability and accuracy.

The invention relates to the technical field of periphyton incubators, and discloses a device for culturing periphyton, which comprises an incubator body, a control operation panel connected to the top of the incubator body and a culture container connected in the incubator body. Through mutual cooperation of an arc-shaped box, a chain, a chain wheel and a lamp shaft seat, the visible light simulation illumination lamp with the wavelength of 400-700 nm can move and is similar to rising of the sun from low to high and then gradually reduced, so that the illumination position is dynamically changed, a more natural growth environment is simulated, the illumination intensity and the duration time are synchronously controlled, and the illumination effect is improved. Therefore, the proper growth temperature in the incubator is maintained, the change rule of the illumination intensity and the illumination angle in one day is truly represented, artificial stable growth conditions closer to the natural environment are provided for periphyton, and efficient growth and metabolism of periphyton at the proper temperature are promoted.

The invention relates to the technical field of illumination angle adjustment, in particular to a tea table illumination angle adjustment control method and system, and the method comprises the following steps: obtaining optical reflection characteristic data of a desktop area, three-dimensional geometric data of an article and user observation point information, and constructing a space model for illumination evaluation; when it is monitored that the desktop environment changes, the changes include that an object enters an unstable state, whether the illumination state touches a preset judgment threshold value or not is evaluated based on the current light source projection angle, and the judgment threshold value comprises a glare threshold value, an illumination uniformity threshold value and a secondary reflection avoidance threshold value; if any judgment threshold value is touched, re-calculation and adjustment of the current light source projection angle are started; and if any judgment threshold is not touched, the current light source projection angle is maintained. The problems of glare, uneven illumination, secondary reflection and the like are effectively solved, and the visual comfort of a user is improved.

The invention discloses a wooden furniture material quality detection method and system for furniture customization, and relates to the technical field of furniture quality detection.The method comprises the steps that shadow images corresponding to different target detection areas in wooden furniture shot at multiple illumination angles are acquired; based on the shadow change characteristics of the shadow images at different illumination angles, screening out a first shadow region with an abnormal shadow from each shadow image; based on the light and shadow feature difference of each part of shadow in the first shadow area, calculating to obtain the light and shadow matching degree of the target detection area, obtaining height point cloud data corresponding to the first shadow area, and based on the height difference of each data point in the height point cloud data, calculating to obtain the three-dimensional height dispersion of the target detection area; and performing quality evaluation on the wooden furniture based on the three-dimensional height dispersion and the light and shadow matching degree to obtain a quality evaluation result. The technical effect of improving the detection precision is achieved.

The invention provides a low-noise speckle interference system and method based on a spatial light modulator, and relates to the technical field of speckle interference, and the system comprises a laser, a first beam splitter prism and an imaging element. A laser beam emitted by the laser is divided into transmission light and reflected light by the beam splitter prism I; after being reflected by the third beam splitter prism, part of the transmission light is irradiated on an imaging element as reference light; part of the reflected light sequentially passes through a linear polaroid and a half-wave plate, is modulated by a spatial light modulator assembly, irradiates a fourth beam splitter prism, and is reflected to the surface of a measured object to generate diffuse reflection, so that slow-reflection light is obtained; according to the speckle interference system, object light is modulated by using a spatial light modulator assembly, so that emergent light modulated by the spatial light modulator assembly irradiates a measured object at various illumination angles, mutually independent speckle fields are formed on a target surface of an imaging element, speckle decorrelation noise can be effectively inhibited after multiple times of measurement and superposition, and the measurement accuracy is improved. And the accuracy of subsequent measurement results is improved.

The invention relates to the technical field of visual detection, and discloses a steel belt visual surface detection device which comprises a workbench. In the detection process, that is, when the CCD camera moves horizontally, the light supplementing lamp irradiates at a positive light angle perpendicular to the surface of the steel strip, the mode can highlight flatness defects and reduce reflection interference, and the method is suitable for detecting surface fluctuation defects; when the camera reaches the left and right limit positions and returns, the mechanical structure is linked to enable the reflecting cover to rotate, and the light supplementing lamp is switched to irradiate at an inclined side light angle, so that the shadow contrast ratio of the edge concave-convex defect is enhanced, and the identification precision of the microdefect is improved; and intelligent switching between the positive light and the side light is realized through cooperation of mechanical structures such as the ejector rod, the ball and the compression spring, the illumination angle can be automatically adjusted according to the position of the camera without an electronic sensor, the system structure is simplified, the cost is reduced, and meanwhile, the reliability is improved.

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

The invention relates to a method for illuminating a sample plane (17) with wide-field illumination and comprises the steps of providing an illumination beam; guiding the illumination beam along an illumination beam path (3); focusing the illumination beam into an objective pupil (13) of an illumination objective (10) and generating an illumination pattern of wide-field illumination in the sample plane (17), wherein at least one optical element of the illumination beam path is moved in order to repeatedly change the formation of the illumination pattern in the sample plane (17) for the purpose of homogenizing the wide-field illumination.The invention is characterized in that a first scanner (7) is used as an optical element for generating different configurations of the illumination pattern, and the first scanner (7) oscillates in at least one direction around a set position in order to repeatedly change the location or illumination angle of the illumination pattern in the sample plane (17) for the purpose of homogenization. The invention also relates to a device for illuminating a sample plane (17) with wide-field illumination and a microscope (1).

A Multi-Angle Dynamic Image system provides multi-angle observation capabilities comprising lamps strategically positioned to obtain high quality images of the security documents or items under analysis, to obtain images with variations in the observation angle of the security document or item under study. The system includes a box platform for placing the security document or item thereupon, the box platform changes its orientation, allowing the system to capture the variations in color and structure as the orientation and the angles of the observation and illumination change. The system also includes a high-resolution linear camera to capture the intricate details while avoiding distortion and parallax issues. The system also includes a computer configured to run algorithms to process image acquisition data for a complete set of observation angles, to pre-process image acquisition data including crop and image standardization, to calculate differences between adjacent angle images, eliminate noise, to calculate a total optical flow using the images at different angles and their differences to generate the Dynamic Images vectorial field, one per orientation, and the Dynamic Map, a heat map generated using the magnitude from the Dynamic Image vectorial field, and calculate from the Dynamic Image the different parameters associated with dynamic properties of the OVD.

The utility model provides a yard lamp capable of adjusting the irradiation direction, and relates to the technical field of yard lamps, the yard lamp comprises a yard lamp main body and a working mechanism, one side of the yard lamp main body is provided with a connection fixing seat, the working mechanism is installed on the outer side of the connection fixing seat, the working mechanism comprises a supporting assembly, and through the arrangement of the working mechanism, the illumination direction of the yard lamp can be adjusted. When the irradiation angle of the garden lamp needs to be adjusted, the screw can be loosened firstly, after the screw is loosened, the support can be far away from the shell, the support fixing teeth are separated from the shell fixing teeth, the shell can rotate freely, and therefore the irradiation direction of the lamp is adjusted, and after the needed angle is adjusted, the screw is tightened again, the support is pressed to be close to the shell. The bracket fixing teeth are meshed with the shell fixing teeth, so that the angle of the shell is fixed, and in the whole process, the bracket rotating shaft and the shell rotating hole are always kept in an assembling state, so that the stable rotation and fixation of the shell are ensured, and the garden lamp can irradiate at different angles.

The invention relates to the technical field of photovoltaic power generation panels, and discloses a photovoltaic power generation panel supporting device convenient for angle adjustment, which comprises a base, the bottom of the base is fixedly connected with a protective cover, the inner wall of the protective cover is fixedly connected with a motor, the output end of the motor is fixedly connected with a reciprocating screw rod, and the circumferential surface of the reciprocating screw rod is fixedly connected with a rotating block. And the front part of the rotating block is fixedly connected with a connecting column I. According to the invention, the photovoltaic solar panel can rotate according to the position change of solar rays, the illumination angle can be optimized, the sunlight can be ensured to be vertically or approximately vertically irradiated to the surface of the photovoltaic panel, the sunlight can be absorbed to the maximum extent, and the light energy absorption of the photovoltaic power generation panel can be improved; the photovoltaic conversion efficiency of the photovoltaic panel can be maximized, the use efficiency of the device is improved, and the device can adapt to sunlight perpendicular incidence angles in different regions.

The invention provides a non-sun-synchronous orbit satellite energy optimal attitude sailboard control method and system. The method comprises the steps that S1, the illumination angle of each orbit in the satellite life period is calculated according to collected orbit parameters; s2, calculating the illumination area half angle and the illumination duration under the illumination angle of each track; s3, calculating the illumination energy of each track of the sailboard driving shaft under the combination of different swinging positions and different flight attitudes of the satellite; s4, comparing illumination energy of each track, and preferably selecting a combination of a posture with the maximum energy in each period and a sailboard driving position; and S5, obtaining a control strategy for the attitude of all orbital circles of satellites and the position of a sailboard driving shaft in the whole life period of the satellites. By comparing various feasible in-orbit attitude and sailboard position combinations, a sailboard position and attitude control method with optimal energy can be obtained through optimization, the in-orbit receiving energy of a two-dimensional driving solar sailboard satellite is improved, the required sailboard area is reduced under the same power consumption requirement, and the weight of the whole satellite is reduced.

The invention relates to the technical field of material detection, in particular to an automobile armrest quality rapid evaluation method and device, and the method comprises the steps: setting a camera to face a to-be-detected surface of an armrest, and determining the position and effective illumination angle of a part in an image; the light source irradiates at an inclined angle of 45 degrees and rotates around the center of the handrail, and the camera shoots an image once after passing through a fixed step length theta; performing gray scale unification processing on the image; shadow change areas in the front and back images are calculated, and the shadow change areas correspond to all the components; all the corresponding shadow change areas in the effective illumination angle are screened out by all the components and then combined to form a shadow area, and the equivalent centroid is calculated; and calculating the perpendicularity and the distance of a connecting line between the center of each part and the equivalent mass center, calculating a final evaluation score, and if the evaluation score is greater than a set threshold value, judging that the quality of the automobile armrest is unqualified. According to the invention, the problems of low detection efficiency and poor detection accuracy in the prior art can be effectively solved.

The invention discloses a three-dimensional reconstruction method, device and system based on a non-Lambert model, and belongs to the field of three-dimensional reconstruction. The non-Lambert model-based three-dimensional reconstruction method provided by the embodiment of the invention comprises the steps of performing image acquisition on a to-be-reconstructed object to obtain multiple groups of reconstructed images with different illumination angles; calculating a corresponding incident light vector according to the illumination angle of the reconstructed image; calculating a surface normal vector of the to-be-reconstructed object according to a reflection formula of a non-Lambert model based on the incident light vector and the reconstructed image; and performing height reconstruction on the to-be-reconstructed object based on the surface normal vector to obtain a reconstruction result. Therefore, three-dimensional reconstruction with relatively high precision can be realized, a relatively good reconstruction effect on an object with a large amount of highlight information is also achieved, and the adaptability is relatively high.

The invention discloses a wafer surface defect detection system and method based on a high-speed line scanning camera, and belongs to the technical field of wafer defect detection, and the system comprises an illumination system which is used for providing bright field illumination and illumination with an adjustable illumination angle, and forming a line light spot with an adjustable size on the surface of a wafer through a line light spot generation device; the wafer scanning assembly comprises a carrying table used for carrying a wafer and a displacement control assembly used for driving the carrying table to move; the imaging system comprises a bright field imaging assembly; the high-speed line scanning camera is used for carrying out high-speed scanning imaging on the signals collected by the imaging system and balancing the signal-to-noise ratio, the dynamic range and the detection resolution through a programmable pixel merging function; and the control system is used for coordinating and controlling all system components and realizing parameter optimization and online self-adaptive calibration. According to the invention, high-resolution and high-sensitivity wafer surface micro-nano defect detection can be realized while high detection speed is ensured.

The invention discloses an ultrafast three-dimensional refractive index reconstruction method based on compressed sensing illumination. According to the invention, a multiplexing ODT imaging system based on double DMDs is adopted to collect a holographic image of multiplexing illumination; modulation and spatial filtering are carried out on the illumination light beam through the double-digital micromirror array; carrying out holographic solution on the holographic image to obtain a composite object light field at a plurality of illumination angles to train a deep learning neural network for demultiplexing the light field; obtaining a composite object light optical field at each illumination angle through a deep learning neural network, and reconstructing to obtain a three-dimensional refractive index of a sample based on a reverse reconstruction algorithm of a scalar diffraction theory; on the premise that the number of illumination angles is the same and the collection number is reduced exponentially, the imaging quality equivalent to that of a traditional ODT method is achieved, and the collection number can be saved by 10 times at most; the method is more excellent in the aspects of reconstruction contrast, fine structure fidelity and recovery precision, and the smaller the number of times of collection is, the more significant the improvement of image quality is.

The invention provides an outdoor mixed reality illumination compensation method and system based on multi-source environment perception and real-time weather data, and the method comprises the steps: obtaining multi-source data: providing original data of'space-time reference + environment characteristics' for all subsequent illumination calculation, solving the problems of incomplete coverage and insufficient precision of a single data source (such as only a camera), and obtaining the multi-source data; the data is a data basis for real-time illumination compensation; main light source resolving: the'spatio-temporal data 'is converted into'virtual main light source parameters' through a physical algorithm, it is ensured that the direction and intensity of a virtual main light source (sun / moon) are completely consistent with those of the real world, and the problems of'shadow direction error 'and'illumination angle splitting' are solved; through GPS space-time positioning, network weather API data and local visual sensor fused illumination compensation, a real-time environment illumination shadow relationship matches a virtual world with a real world, a more immersive mixed reality experience is presented, and a split feeling is reduced.

The application provides an irradiation angle adjusting component and an angle-adjustable lamp. The irradiation angle adjusting component comprises a support, a light source and an optical component. The light source emits light, the light is at least partially incident into the optical component, and the light is redirected and emitted out through the optical component. The light source and the optical component are arranged on the support, and at least one of the light source and the optical component can rotate and / or swing relative to the support, so as to change the light projection angle of the light emitted out by the optical component. The irradiation angle adjusting component can improve the universality on the basis of ensuring the heat dissipation effect.

The invention provides an off-axis illumination light machine device which can be applied to the technical field of optical measurement. The device comprises a fixed disc; the m sets of off-axis illumination light paths are installed on the fixed disc, and each set of off-axis illumination light path comprises an illumination light source unit used for providing an input light beam; the light homogenizing coupling unit is used for homogenizing the input light beam; the view field adjusting unit is used for limiting the shape and the size of the illumination area; the off-axis illumination angle adjusting unit comprises a first reflecting mirror, and the light path emitting direction is changed by adjusting the pitching angle of the first reflecting mirror; the imaging detection unit is used for acquiring image information of a target area which is jointly covered by the illumination light fields of the m sets of off-axis illumination light paths; the control unit is used for generating a control instruction based on the image information so as to cooperatively drive the off-axis illumination angle adjusting unit, and the incident angles of the m sets of off-axis illumination light paths are synchronously adjusted to target values; wherein m is an integer greater than or equal to 2.

This utility model discloses an intelligent lamp base with adjustable height and illumination angle, comprising a base plate, a plurality of support rods fixedly connected to the upper surface of the base plate, a bearing plate fixedly connected to the upper surface of the support rods, a connecting column fixedly connected to the upper surface of the bearing plate, a threaded screw rotatably connected to the inner surface of the connecting column, a slider threadedly connected to the outer surface of the threaded screw, a rotating block fixedly connected to the top end of the threaded screw, and two connecting shafts fixedly connected to the slider. Through the arrangement of the threaded screw, slider, and rotating block, when the threaded screw is released, the slider and its components can be moved by operating the rotating block, thereby enabling adjustment of the height of the intelligent lamp connected to the overall structure. This allows the height of the lamp to be changed according to the user's needs, increasing the overall practicality of the structure.

The utility model discloses a lighting device for internal maintenance of mining machinery, which comprises a counterweight base, the top of the counterweight base is fixedly connected with a support column, the surface of the support column is provided with a lifting disc, the front side of the lifting disc is provided with a rotating disc, the inner cavity of the rotating disc is in sliding connection with an operating rod, and the operating rod is provided with a handle. A transparent lampshade is fixedly connected to the left end of the operating rod, an LED lamp is fixedly installed in an inner cavity of the transparent lampshade, and a locking assembly is arranged between the lifting disc and the rotating disc. The lifting disc, the rotating disc and the operating rod are supported and fixed through matched use of the balance weight base and the supporting column, a designated position is deeply illuminated through matched use of the transparent lampshade and the LED lamp, meanwhile, the illumination angle can be adjusted through arrangement of the locking assembly, and the illumination effect is improved. Therefore, the purposes of adjustable illumination height and angle and deep illumination close to the maintenance position can be achieved.

A drawing apparatus draws an illumination image by illuminating visible light onto a landing point on which a flight vehicle is to land. The drawing apparatus includes a focusing mechanism that executes focusing of the illumination image according to an altitude of the flight vehicle, and an illumination angle adjustment mechanism that adjusts an illumination angle of the visible light toward the landing point.

The present invention discloses a deep anti-glare lamp with an adjustable illumination angle, which mainly includes a lamp body, a moving component and a lighting component, wherein the lighting component can be linked with the moving component to move horizontally along the lamp body when rotating. In this way, when the rotation angle of the lighting component needs to be adjusted, the light-emitting end of the lighting component can be rotated and also translated a certain distance accordingly, so that the initially set lighting conditions (i.e., light intensity, light spot shape, shading angle, etc.) can continue to be maintained, thereby fully improving the adaptability and adjustment ability of the lamp and improving the user's comfort and recognition.

The invention discloses an interior design illumination simulation device, and relates to the technical field of interior design illumination simulation. The indoor design illumination simulation device comprises an outer frame, the outer wall of the outer frame is fixedly connected with a display component, and the inner bottom of the outer frame is fixedly connected with a simulation mechanism. According to the indoor design illumination simulation device, the model placement disc is driven to rotate through the motor, the indoor design model is driven to turn, and the illumination angle change of sunlight at different time points (such as morning, noon and evening) can be simulated. According to the dynamic rotation design, the back face of the model can also face the simulation lamp, the illumination test range is expanded, the visual effect and shadow distribution of the indoor design under different natural illumination conditions can be comprehensively evaluated, the limiting assembly allows the sliding rail to rotate around the fixing shaft and be fixed at different angles through cooperation of the fixing shaft, the sleeving ring and the bolt, and the detection accuracy is improved. Therefore, the arc-shaped track of the simulation lamp is adjusted.