137 results about "Laser imaging" patented technology

The invention discloses a control method, system and equipment of an intelligent throat surgical robot and a medium. According to the scheme, a three-dimensional tissue model is constructed according to visual image data, laser imaging data and tomography image data; determining lesion data according to the historical lesion data and the tomography image data, superposing the lesion data and the three-dimensional tissue model, and determining a target operation model; determining prediction trajectory data according to the tomography image data and the physiological motion data; planning a path according to the predicted trajectory data, the target operation model and the constraint condition, and controlling the operation robot to perform an operation according to the planned path; through multi-modal data fusion, a three-dimensional tissue model is established to improve the surgical accuracy; the data are analyzed to determine the lesion direction, the motion trail of the organ tissue is predicted, the three-dimensional tissue model is integrated for path planning, the interference of physiological activities of the organ tissue on the operation is avoided, and the safety of the operation is improved. The embodiment of the invention can be widely applied to the field of intelligent robots.

The invention relates to the field of medical image processing, in particular to a lesion recognition method and system for non-staining biopsy cells, and the method comprises the steps: carrying out the imaging collection of the non-staining biopsy cells flowing at a high speed through the time sequence synchronous control of pulse laser and high-speed imaging, and obtaining an original cell image; performing image preprocessing on the original cell image to obtain a preprocessed cell image; performing multi-target cutting on the preprocessed cell image to obtain a standardized single cell image; extracting multi-scale features of the standardized single cell image based on a deep learning model to obtain a lesion recognition result corresponding to the non-staining biopsy cells; and based on a preset structured report generation algorithm and a statistical distribution modeling mechanism, performing structured integration on the lesion recognition result to obtain a structured cell diagnosis report. Through pulse laser imaging and deep learning feature extraction, automatic lesion recognition of non-staining biopsy cells is realized, a report is efficiently generated, and accurate diagnosis is assisted.

The invention relates to the technical field of optical detection, in particular to a high-precision laser imaging and defect detection system based on line spectrum confocal. A light source module is used for emitting a light source light beam to a to-be-detected target; the beam shaping module is used for shaping the light source beam into a Gaussian spot by using a collimating optical element; the confocal measurement module is used for focusing Gaussian light spots to the surface of a to-be-measured target and forming a dispersion focal region in the Z-axis direction, so that different height positions of the surface of the to-be-measured target correspond to focus points with different wavelengths; the reflected light guiding module is used for collecting reflected light from the surface of a to-be-detected target, separating the reflected light from an incident light path and guiding the reflected light to a detection path; the photoelectric detection module is used for receiving reflected light in the detection path and recording spectral information corresponding to each spatial position; and the defect analysis module is used for calling a defect identification model to carry out defect type identification and area positioning on the to-be-detected target based on the collected spectral information. According to the invention, detection of tiny defects on the surface of a complex material can be realized.

The embodiments of the disclosure provide an image data processing method for laser imaging, a computer device and a computer-readable storage medium. In the embodiments, in case where the gap distance corresponding to a previous laser is not an integer multiple of the preset width of pixel row, the image resolution for a scan area associated with a next adjacent laser is increased to the second resolution to decrease the width of pixel row in the associated scan area, thereby more pixel rows may be obtained in the same area in the raw scan image, and the pixel rows closer to the position actually scanned by the laser spot may be selected as the target pixel rows, which may decrease the deviation between the position of the pixel row actually scanned by the laser and the theoretical position of the pixel row, and further improve the laser scan imaging accuracy.

The invention discloses a full-transparent soil triaxial internal erosion test system and a test method thereof. The system comprises a transparent loading system, a seepage control system, a laser imaging system, a water-sand separation system, a water pressure control system and an axial loading system. The transparent loading system comprises a base, a transparent pressure chamber is mounted on the base, and a sample table, a porous filter plate, a transparent soil sample, a porous stone and a sample cap are sequentially placed on the base from bottom to top in the transparent pressure chamber. And five L-shaped pipelines, namely a pipeline I, a pipeline II, a pipeline III, a pipeline IV and a pipeline V, are arranged in the base. The pipeline I is connected with the seepage control system, the pipeline II is connected with the water pressure control system, and the pipeline III is connected with the water-sand separation system and the water pressure control system. According to the device disclosed by the invention, a transparent soil sample can be monitored by combining a particle image velocity measurement technology, so that the displacement change of the multi-section soil body in the three-axis internal erosion process of the soil body can be obtained, and the internal structure of the soil body can be reproduced.

The application discloses a kind of underwater laser imaging optical systems of entry pupil preposition, whole system is ten lenses, a protective window, a variable diaphragm and a filter, from object side to image side, it is protective window, front group, rear group and filter in proper order;Wherein: protective window is used to isolate water;Front group includes front group first, second, third and fourth lens four lenses in proper order;Rear group includes rear group first, second, third, fourth, fifth and sixth lens six lenses in proper order;Variable diaphragm is located between rear group third and fourth lens, and variable F number is realized by adjusting diaphragm aperture size, and lens depth of field is promoted;Filter is narrowband filter;Object side imaging beam is imaged once after passing through protective window, front group lens, then pass through rear group lens and filter and be imaged on target surface.The application can realize variable F number by variable diaphragm, promote lens depth of field, and focusing is carried out by last three lenses of rear group, and underwater 3m to infinite distance imaging can be realized.

The invention relates to a modularized PCB laser imaging device, and belongs to the field of PCB machining, the modularized PCB laser imaging device comprises a supporting seat, a mounting groove is formed in the supporting seat, a conveying belt and a fixing block are mounted in the mounting groove, and a first support, a second support, a third support and a second guide plate are mounted on the supporting seat; the first support, the second support and the third support are each provided with an electric lifting sliding base, an electric translation sliding base and a laser machining head, a guide assembly is installed on each electric lifting sliding base, a diagonal plane is formed in each electric lifting sliding base, a connecting frame is installed on the fixing block, and protruding blocks are installed on the two sides of each connecting frame. A first magnetic block is installed on the protruding block, and a sliding groove is formed in the conveying belt. The PCB laser imaging device solves the problems that an existing PCB laser imaging device cannot shrink and clamp after being centered, cannot automatically release after being processed, and cannot concentrate a PCB production line in the same longitudinal space.

The invention relates to the technical field of target detection and positioning, and discloses an unmanned aerial vehicle docking taper sleeve target detection and positioning method based on a laser imaging radar, and the method comprises the steps: calibrating a coordinate system: calibrating the internal parameters of the laser imaging radar based on an annular target, the pose of the annular target in a laser imaging radar coordinate system is calculated through a direct linear transformation method, and after optimization through a beam adjustment method, the unmanned aerial vehicle and the annular target coordinate system are set to be in a translation-only relation; calculating rotation and translation matrixes of the laser imaging radar and the unmanned aerial vehicle coordinate system to form a pose relation between the two; target detection: acquiring an intensity image and a distance image of a taper sleeve target through a laser imaging radar, and performing model training in a complex environment in combination with a target detection algorithm to generate a detection model; and pose resolving: calculating the center-of-mass coordinate of the taper sleeve target, and outputting the position information of the taper sleeve target under the unmanned aerial vehicle coordinate system. The detection and positioning capability of the docking taper sleeve target of the unmanned aerial vehicle can be improved.

The invention discloses an underwater high-repetition-frequency pulse laser line scanning imaging system and method, and relates to the technical field of underwater laser imaging, a laser emission module is used for emitting high-repetition-frequency pulse laser and comprises a high-repetition-frequency pulse laser device with the working wavelength of 532 nm and a beam shaping module; wherein the light beam shaping module is composed of a double-axis cone mirror and a cylindrical mirror; the laser imaging module is used for carrying out large-depth-of-field imaging on target reflection echoes in a set time window, comprises a high-speed gating camera, an imaging lens and a narrow-band optical filter, and is constructed based on the Sammer imaging principle; and the synchronous control module is used for performing power supply communication and gating time sequence control to realize time sequence synchronization of the laser and the camera in the system. According to the invention, laser line scanning and range gating imaging technologies are combined, so that the method is suitable for long-distance and large-range environment detection, high-precision three-dimensional reconstruction of a short-distance target can be realized, and the definition, the signal-to-noise ratio and the applicability of underwater imaging are effectively improved.

The invention discloses a roll-to-roll based double-sided LDI exposure system and exposure method, relates to the technical field of flexible electronic manufacturing, and can solve the problem that the alignment precision is reduced due to the fact that existing double-sided laser imaging equipment cannot compensate dynamic deformation of a base material in the transmission process. The system is sequentially provided with a marking station and an exposure station in the conveying direction of a base material, and the marking station is provided with a marking device used for making marking points on the base material; the exposure station is provided with a pose adjusting mechanism and two laser projection head arrays which are driven by the pose adjusting mechanism and oppositely arranged on the upper side and the lower side of a base material, the alignment camera collects marking point images on the base material, and the control device controls the pose adjusting mechanism to adjust the poses of the laser projection head arrays according to image information, so that an exposure pattern is aligned with a target area of the base material. Therefore, the dynamic error can be adaptively compensated, the alignment precision is improved, the exposure method can realize parallel processing of marking and exposure, and the production efficiency is effectively improved.

The invention relates to the technical field of printed circuit board assembly quality detection, and discloses an IC carrier plate detection method and system based on multi-mode laser imaging and AI fusion. The method comprises the following steps: acquiring three-dimensional point cloud data of a PCBA board to be detected; generating a reference three-dimensional digital twin model according to a standard PCBA design drawing; carrying out spatial registration on the three-dimensional point cloud data and the reference three-dimensional digital twin model, obtaining the three-dimensional point cloud data, carrying out hierarchical processing on the obtained three-dimensional point cloud data, extracting geometric features of a welding spot region, contour features of an element region and surface features of a substrate region, and carrying out fusion to generate a feature vector group; constructing a generative adversarial model based on a preset semi-supervised learning framework and the normal PCBA sample vector group; and inputting the feature vector group into a generative adversarial model, and examining the abnormal vectors, the corresponding three-dimensional coordinates and the abnormal types in the feature vector group by the generative adversarial model to complete the abnormal detection of the PCBA board. The method is suitable for quality control of a high-density and miniaturized PCBA.

A method is provided for life cycle wear monitoring of a consumable refractory in an electric induction furnace used for heating and melting materials by accumulating laser imaging data of the refractory's inner surface periodically over the refractory's life cycle while the furnace is utilized in a foundry environment and processing the accumulated imaging data for comparative analysis with previous laser imaging data of the refractory's inner surface.

The invention discloses a laser imaging exposure machine, and belongs to the technical field of laser imaging exposure machines, the laser imaging exposure machine comprises a laser imaging exposure machine body, a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are respectively arranged at two ends of the laser imaging exposure machine body, the first fixing plate is provided with a loosening assembly, and the second fixing plate is provided with a clamping assembly. A winding assembly is mounted on the second fixing plate, and the flexible base material is loosened by the loosening assembly, exposed by the laser imaging exposure machine body and stored by the winding assembly; through the design of the arc-shaped plate and the adjusting plate, the tensioning wheel is matched, the curved surface of the flexible base material can be attached in a self-adaptive mode, the curved surface of the flexible base material is cleaned, when the tensioning wheel adjusts the tightness degree of the flexible base material, the adjusting plate can adjust the position so as to be matched with the adjusted curved surface of the flexible base material, and the cleaning effect is better provided.

Disclosed is a system and method for solid-state 2D optical phased arrays (OPAs), which are fabricated from InGaN / AlGaN multiple quantum wells (MQWs) and AlyGa1-yN / AlxGa1-xN (y<x) MQWs. The InGaN / AlGaN MQWs and AlyGa1-yN / AlxGa1-xN (y<x) MQWs include alternating p-type and n-type layers to form p-n-p-n MQW structures to allow the OPA to operate in the reversed biased configuration to further minimize the operating current and heat generation. The phase in each pixel within the OPA will be controlled independently via electro-optic effect in III-nitride MQWs by varying the voltage in each pixel by a Si CMOS array to achieve the manipulation of the distribution of optical power in the far field and steering of the main laser beam. The present disclosure is applicable to a wide range of applications, including the operation of LIDAR systems, laser weapons, laser illuminators, and laser imaging systems.

A deposition apparatus is described. The deposition apparatus has a substrate support and a laser imaging system disposed to image a portion of a substrate positioned on the substrate support. The laser imaging system includes a laser source and an imaging unit, and the laser imaging system is coupled to a deposition assembly disposed across the substrate support.

The invention belongs to the technical field of laser imaging and stress detection, and particularly relates to a stress non-uniformity characterization method based on photocarrier radiation measurement. According to the method, a material to be measured is excited by modulation laser with photon energy larger than the forbidden bandwidth of the material to generate photocarriers, carrier radiation signals are collected through an off-axis parabolic mirror, an amplitude-frequency and / or phase-frequency curve corresponding to a single point of the material is constructed through frequency scanning, the curve difference is represented through curve integral operation, and corresponding gray-scale values are correspondingly formed. Then photocarrier radiation signals at different positions of the material are detected, gray-scale values at different positions are obtained, a complete gray-scale image is drawn, the stress distribution characteristics of the sample to be detected can be mapped through the gray-scale image, and imaging characterization of the stress distribution non-uniformity of the sample is completed.

The utility model discloses a kind of single camera double visual field adjustable optical path's laser imaging device, the device includes imaging module, light splitting module, optical path adjusting module and shell, imaging module, light splitting module and optical path adjusting module are all connected in shell, and light splitting module and imaging module are sequentially arranged along laser input direction, optical path adjusting module is arranged below imaging module;Light splitting module is used to divide laser into first light beam and second light beam, and first light beam is transmitted to imaging module, and second light beam is transmitted to optical path adjusting module;Optical path adjusting module is used to adjust the optical path of second light beam, and second light beam is transmitted back to light splitting module, and is transmitted to imaging module by light splitting module;Imaging module is used to synchronously scan measurement to first light beam and second light beam.The utility model's light splitting module divides laser into first, second light beam, imaging module simultaneously measures first light beam and second light beam, realizes laser far field synchronous detection, improves measurement efficiency and synchronism.

The present application relates to the technical field of laser imaging, and in particular to a high-precision dynamic coupling method and device for a variable-tapered curved crystal and an X-ray streak camera, the method comprising: under the same optical path, respectively irradiating a variable-tapered curved crystal with a visible light source and X-rays, so that the variable-tapered curved crystal forms a visible light source focal line and an X-ray focal line on an imaging plate; acquiring position information of the visible light source focal line and the X-ray focal line by means of an image acquisition device, and extracting a focal line relative deviation; coupling the variable-tapered curved crystal and the X-ray streak camera by means of a three-dimensional adjustment mechanism, and continuously irradiating the variable-tapered curved crystal with the visible light source; and adjusting the position of the variable-tapered curved crystal by means of the three-dimensional adjustment mechanism according to the image acquisition device and the focal line relative deviation, so that the X-ray focal line coincides with a cathode slit of the X-ray streak camera. The purpose is to achieve high-precision coupling of the variable-tapered curved crystal and the X-ray streak camera.

This invention relates to a real-time monitoring device for yarn vibration characteristics based on laser imaging, comprising: a laser for emitting laser light to form a laser beam; a first polarizing beam splitter for orthogonally decomposing the laser beam into a measurement beam and a reference beam according to the polarization state of the laser; a measurement imaging optical path for measuring the yarn under test using the measurement beam and reflecting the measurement beam passing through the area where the yarn under test is located through a reflector to form an echo beam carrying the characteristic information of the yarn under test; a reference illumination optical path for constructing a uniform and stable background illumination reference beam; a beam splitter for combining the echo beam and the background illumination reference beam to obtain a combined beam; an area array camera for acquiring the combined beam; and an image processing system connected to the area array camera for performing image processing on the acquired combined beam to obtain the vibration characteristics of the yarn. This invention can accurately capture and quantify the vertical vibration characteristics of the yarn.

The present application provides a loose evaluation method for asphalt pavement, and belongs to the technical field of loose evaluation for asphalt pavement. The aggregate cleaning device is used to sweep and collect loose aggregate of the asphalt pavement in a specific area. The collected aggregate is conveyed to a vibration table for vibration and shaking. A laser array is used for scanning to obtain the particle size of all aggregates. The particle sizes of all aggregates are compared to obtain the particle size of the largest aggregate. Then, the identification range size is selected according to the particle size of the largest aggregate. The laser imaging principle is used to irradiate and identify the asphalt pavement from the top of the pavement to obtain each spalling pit hole in the test area. The loose rate of the asphalt pavement is calculated according to the size of the aggregate and the spalling pit hole. Then, the loose degree of the asphalt pavement is evaluated according to the loose rate. The scattered aggregate is collected for detection and grouping. The particle size of the aggregate is used as the reference value of the measurement range to realize more accurate measurement of the spalling pit hole area. The whole measurement process does not involve cutting the pavement or digging, which well protects the road.

The invention relates to the technical field of distortion correction, and discloses a laser imaging wavefront distortion correction system and method based on deep learning, and the system comprises a first module which collects three intensity images; the second module is used for estimating the Zernike coefficient and the amplitude of the target complex amplitude; the third module is used for constructing a loss function; a fourth module that calculates an actuator voltage; the fifth module is used for calculating the Stell ratio and the high-frequency lifting ratio in the modulation transfer function; and the sixth module is used for re-applying the voltage of the actuator when judging that the evaluation condition is not met. According to the method, a full-process correction mechanism is constructed by integrating deep learning and an optical physical rule, and initial correction is realized by stably solving the voltage of the actuator by utilizing Tagunov regularization, so that the high-frequency detail definition in imaging is improved, the correction accuracy, real-time performance and robustness are both considered, and the method is suitable for large-scale popularization and application. And the application suitability of the laser imaging technology in the high-precision field is greatly expanded.

The invention discloses a cleaning equipment driving surface covering identification method and device and cleaning equipment. The method comprises the steps that a line laser imaging picture collected by the cleaning equipment in the driving process is acquired; the line laser imaging picture is an image obtained by performing infrared imaging on a line laser projection area; the line laser projection area is an area where the cleaning equipment projects line laser; aiming at each line laser imaging picture, according to line laser infrared imaging information in the line laser imaging picture, carrying out covering object identification to obtain a covering object identification result of a line laser projection area corresponding to the line laser imaging picture; and determining the position of a covering on a driving surface on which the cleaning equipment runs according to the covering identification results corresponding to the plurality of line laser imaging pictures collected by the cleaning equipment. The computing power demand of covering identification can be reduced.

The utility model provides a kind of road surface disease detection device, including detection car, camera for being arranged on detection car and being used to shoot lane marking line image, and three-dimensional laser imaging component for being arranged in detection car rear side and being used to detect disease, pressure bucket containing paint is further equipped in detection car inside, spray head connected to pressure bucket by pipeline is equipped on detection car below three-dimensional laser imaging component, spray head is connected to pressure bucket by pipeline, and solenoid valve is equipped on the pipeline of connection, when three-dimensional laser imaging component detects disease, system control solenoid valve opens pipeline, paint in pressure bucket enters pipeline and is sprayed to corresponding position by spray head, so as to mark disease position, staff only need to find disease position by marking point, so that detection car does not need to wait staff to come over to handle in situ, can continue to work and find next disease point, to improve the work efficiency of detection car.

The invention discloses a cleaning equipment driving surface covering identification method and device and cleaning equipment. The method comprises the steps that a line laser imaging picture collected by the cleaning equipment in the driving process is acquired; the line laser imaging picture is an image obtained by performing infrared imaging on a line laser projection area; the line laser projection area is an area where the cleaning equipment projects line laser; aiming at each line laser imaging picture, according to line laser infrared imaging information in the line laser imaging picture, carrying out covering object identification to obtain a covering object identification result of a line laser projection area corresponding to the line laser imaging picture; and determining the position of a covering on a driving surface on which the cleaning equipment runs according to the covering identification results corresponding to the plurality of line laser imaging pictures collected by the cleaning equipment. The computing power demand of covering identification can be reduced.

The application discloses a kind of utilization perception technology obtains the turn-back type dumper unloading system and working method of open car parameter, work in parallel arrangement heavy car line A and empty car line B, the system includes: in heavy car line A according to the direction of car entering respectively arranged OCR system, laser imaging radar device, wheel clamp, heavy car shunting machine, dumper, heavy car line stopper and migration car platform, in empty car line B according to the direction of car, empty car shunting machine, empty car line stopper and empty car line anti-slip device, the system utilizes the perception technology of OCR technology and laser radar scanning imaging technology fusion, obtains the length, width and height etc. Parameters of open car to be turned over and unloaded in advance, to accurately control the operation of single machine equipment, ensure equipment operation stability, improve dumper system operation efficiency.

The invention discloses a regeneration defect detection device and a regeneration defect detection method. The regeneration defect detection device comprises a laser emitting unit, an imaging detection unit and a processing unit, the laser emitting unit is positioned on one side of the first surface of the to-be-detected sample and is used for emitting detection laser to the first surface; the imaging detection unit is positioned on one side of the second surface of the to-be-detected sample and is used for receiving scattered laser scattered by the detection laser based on the regeneration defect of the to-be-detected sample and imaging; the second surface intersects with the first surface; and the processing unit is electrically connected with the imaging detection unit and is used for determining the regeneration defect of the to-be-detected sample according to the laser scattering image of the regeneration defect. By adopting the technical scheme, the regeneration defect of the to-be-detected sample is analyzed through laser scattering imaging, so that the shallow surface regeneration defect of the to-be-detected sample is detected, and the defect depth is determined.

The application discloses a kind of high-speed moving particles and underwater cavity interaction test device in the field of fluid test device, comprising: cavity generation unit, including the cylinder filled with water;Ejection module, is located above cylinder, for making particle high-speed movement pass through the cavity generated by cavity generation unit, and the speed information of particle is realized acquisition;Laser imaging unit is located at the circumferential periphery of cylinder;Control unit, and cavity generation unit, laser imaging unit and ejection module are electrically connected;And a kind of test method;The beneficial effects of the application are: thus by setting cavity generation unit, ejection module, laser imaging unit and control unit, control unit is according to the existence time of cavity, the speed of particle, the accurate pulse control of laser imaging unit to the position of particle, the accurate capture of cavity and high-speed particle interaction image data is realized, and test result is more conducive to the research of abrasion problem.

The invention discloses an alignment device for tinned PCB laser imaging and a use method. The alignment device comprises a workbench, and first alignment plates which are symmetrically arranged are arranged at the positions, corresponding to the long edges, above the workbench; the second alignment plates which are symmetrically arranged are arranged at the positions, corresponding to the short edges, above the workbench. A moving plate is arranged below the second alignment plate, first sliding plates which are symmetrically arranged are connected to the position, corresponding to the moving plate, below the second alignment plate, and a supporting plate is connected to the position, away from the second alignment plate, of one side of the moving plate; the lead screw drives the adjusting plate to move on the outer side of the lead screw in the rotating process, the adjusting plate can drive the first sliding plate and the second alignment plate to move to be close to or away from the middle of the workbench in the moving process, and therefore the PCBs of different proportions can be aligned; consecutive operation can be achieved, and therefore efficiency can be improved.

Embodiments of the present application provide a scanning control method, a control system and related equipment of a laser direct writing device, which are used to improve the precision, efficiency and compatibility of the control program of laser imaging. The method of the embodiments of the present application comprises: acquiring image data of an original grid image, wherein the image data at least comprises position parameters of pixel exposure points in each pixel row; acquiring a scanning strategy selection instruction, wherein the scanning strategy selection instruction indicates a target scanning strategy selected from a plurality of scanning strategies, and each scanning strategy indicates a scanning order of each pixel row; reading the position parameters of the pixel exposure points in each pixel row according to the scanning order in the target scanning strategy, and controlling a laser array to scan a mapping area of each pixel row on a photosensitive coating according to the scanning order in the target scanning strategy, and exposing the positions of the pixel exposure points of each pixel row in the scanning process.

The invention discloses a drill rod joint outdoor positioning method for linear laser-assisted imaging, and belongs to the technical field of iron roughneck equipment on petroleum and geological drilling platforms. Comprising the following steps: acquiring a drill rod image through an imaging system, preprocessing the acquired image, performing template training based on the preprocessed image, extracting a feature template of a laser broken line at a drill rod joint, defining a similarity threshold value, performing feature matching on the image acquired in real time and the feature template, and if the similarity reaches the threshold value, identifying the drill rod joint. And calculating the height coordinate of the central point, and outputting the height coordinate to an iron roughneck control system to guide the clamp body to automatically position and clamp. According to the invention, through the linear laser-assisted imaging and narrow-band filtering technology, outdoor illumination fluctuation and complex background interference are overcome, high-precision automatic identification and positioning of the drill rod joint at a long distance are realized, the automation level, positioning efficiency and safety of iron roughneck operation are greatly improved, and the system has the advantages of low cost and easy integration.