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160 results about "Optical probing" patented technology

Electro-optic probing is a class of techniques which relies on the detection of changes in the polarization of an optical beam probe to measure voltage waveforms. Because of the nature of the polarization changes, very high frequency signals can be measured accurately without loading on the circuit. History.

Wafer high-precision alignment mechanism

PendingCN121368372AWaferOptical probing
The invention discloses a wafer high-precision alignment mechanism, and relates to the technical field of semiconductor manufacturing and packaging, the wafer high-precision alignment mechanism comprises a casing and a vertical box integrally and fixedly connected to the upper part of the rear side of the casing, a cantilever is fixedly connected to the center of the upper part of the front side of the vertical box, and a detection mechanism for performing optical detection on a wafer is arranged between the cantilever and the upper wall of the casing. A circular movable hole is formed in the upper wall of the machine shell, the central axis of the movable hole is located on the central axis face of the cantilever, and an alignment mechanism used for adjusting the position of the wafer is arranged in the movable hole. By arranging the cleaning assembly and adopting a closed-loop design combining blowing and suction, the invention has the following remarkable beneficial effects: firstly, the structure forms an air curtain barrier with directional flow through the synergistic effect of positive-pressure blowing and negative-pressure suction, not only can dust on the mirror surface of the optical probe be continuously removed, but also pollutants can be actively discharged from the inside of equipment, so that the cleaning efficiency is greatly improved; the secondary pollution is fundamentally avoided, and the thoroughness and reliability of cleaning are greatly improved.
Owner:三河建华高科有限责任公司

Small target dynamic anti-interference identification method and system based on standard-loaded multi-sensor fusion

The embodiment of the invention provides a small target dynamic anti-interference identification method and system based on standard-loaded multi-sensor fusion, and the method comprises the steps: collecting multi-source data of a port channel through a standard-loaded optical detection terminal, a millimeter-wave radar and an AIS device; performing visual enhancement and radar anti-interference processing on the multi-source data, and extracting a small target recognition result based on the image and the radar; aligning a multi-source identification result with AIS data under a unified space-time reference, and completing multi-source data trajectory association at an edge computing node by adopting a joint probability data interconnection algorithm optimized by a mahalanobis distance; and predicting the target trajectory at the cloud and feeding back the target trajectory to the edge node for optimization association, and integrating a result to output a small target dynamic identification and tracking result. According to the method, through cooperative processing of visual enhancement and radar anti-interference, and in combination with a cloud-side cooperative fusion architecture, the accuracy and robustness of small target identification in a low visual environment are effectively improved, and the problems of missing detection and false detection of a traditional single sensor in a complex scene are solved.
Owner:WUHAN UNIV OF TECH

Method for establishing spectrum library, method and device for monitoring thickness and polishing equipment

The invention relates to a method for establishing a spectrum library, a method and device for monitoring thickness and polishing equipment. The method for establishing the spectrum library comprises the following steps: acquiring an actually measured energy reflectivity spectrum of a sample wafer based on an optical detection module, acquiring a first electric field reflectivity of incident light of the optical detection module on an interface between the grinding liquid and a first grinding layer of the target sample wafer and a second electric field reflectivity of the incident light on an interface between the first grinding layer and a first substrate layer of the target sample wafer; based on the first electric field reflectivity, the second electric field reflectivity, the wavelength of the incident light, the refractive index of the incident light on the grinding layer and the thickness of the grinding layer, establishing a theoretical total electric field reflectivity model; obtaining a theoretical energy reflectivity model based on the theoretical total electric field reflectivity model; based on the theoretical energy reflectivity model, theoretical energy reflectivity spectrums corresponding to different grinding layer thicknesses are calculated to generate a spectrum library. According to the invention, the efficiency of establishing the spectrum library can be improved, and meanwhile, a finer spectrum library can be obtained.
Owner:WUHAN EOPTICS TECH CO LTD

Inertial navigation aided navigation positioning method and system

The invention provides an inertial navigation aided navigation positioning method and system, and the method comprises the steps: calculating the coordinate of each navigation satellite in an ECEF coordinate system according to the satellite ephemeris of a satellite navigation system; according to the navigation satellite coordinate and the inertial navigation system positioning result, the azimuth angle and the pitch angle of the navigation satellite relative to the optical detection equipment under the ENU coordinate system are solved, and the navigation satellite is tracked; acquiring star maps collected by the optical detection equipment, matching the star maps through a star map recognition algorithm, resolving a coordinate transformation matrix between two continuous frames of star maps, and recognizing fixed stars and satellites in the star maps based on the transformation matrix; converting the identified fixed star in the field of view into an ECEF coordinate system, calculating an observation angular distance between the fixed star and the satellite, and calculating a satellite observation vector in the ECEF coordinate system according to the observation angular distance; and performing error correction on the positioning result of the inertial navigation system based on the satellite observation vector. Through the scheme, the positioning precision of the inertial navigation system can be improved, and the influence of interference deception signals is reduced.
Owner:CENT CHINA OPTOELECTRONICS TECH RES INST (CHINA STATE SHIPBUILDING CORP 717TH RES INST)

Infrared long-distance space adjacent target super-resolution method

The application discloses an infrared long-distance space adjacent target super-resolution method, wherein the method comprises the following steps: S1, analyzing the imaging characteristics of a long-distance target optical detection system and the imaging characteristics of space adjacent multiple targets, modeling point target imaging, and generating a simulation image dataset; S2, initializing the input simulation image based on linear mapping; S3, realizing infrared space adjacent target super-resolution modeling by adopting a sparse reconstruction algorithm, and constructing a deep unfolding network framework; S4, sequentially passing the initialized image through each stage of the deep unfolding network; S5, constructing a GPU training environment, setting a data loader, a model and an evaluator configuration file, training the model, applying the trained model to a test set, generating a high-resolution image, extracting target coordinate information by post-processing and inputting the target coordinate information into the evaluator, obtaining evaluation indexes based on infrared long-distance space adjacent targets, and calculating an average detection rate.
Owner:NANJING UNIV OF POSTS & TELECOMM

Optical detection device with protection function

An optical detection device with a protection function comprises a main control unit which is in communication connection with an optical detection module and an unmanned aerial vehicle deployment unit, and the main control unit is configured to process and display target information and receive a control instruction; dynamic parameters of an external target are obtained through an optical detection module, and an unmanned aerial vehicle interception instruction is generated; the optical detection module is configured to actively scan a target area and obtain space parameters of a target; the light beam guiding mechanism is used for dynamically adjusting the laser emission direction and the optical imaging view field. The unmanned aerial vehicle deployment unit comprises an unmanned aerial vehicle storage mechanism and a launching mechanism; and the communication module realizes real-time data interaction between the main control unit and the unmanned aerial vehicle. According to the device, on the basis of the function of detecting and tracking multiple targets at the same time, the unmanned aerial vehicles are launched through the unmanned aerial vehicle storage unit, and the multiple unmanned aerial vehicles can be guided to track and strike multiple flying targets.
Owner:南京瑞思光电技术有限公司 +2

Acousto-optic combined underwater target autonomous searching and positioning method

The acousto-optic combined underwater target autonomous searching and positioning method comprises the following steps: establishing an underwater target searching platform based on an underwater unmanned vehicle; pre-establishing an underwater target detection model on the underwater target searching platform; inputting a given target type, a task area and a target quantity into a task decision system; the task decision-making system firstly identifies information transmitted from the sonar system; the task decision system identifies information transmitted from the optical camera system; the task decision-making system judges the suspicious target object; the underwater unmanned vehicle continues to search or return voyage on the given target type, task area and target number, or acousto-optic combination is carried out in a return voyage target detection mode, and sonar detection and optical detection are combined far and near, and large-range preliminary screening and approaching recognition confirmation are combined; the underwater target searching efficiency is improved, the detection and discovery capability is also improved, and the problems of low searching efficiency, difficult positioning and the like are solved.
Owner:KUNMING SHIP EQUIPMENT RESEARCH & TESTING CENTER (CHINA SHIPBUILDING CORP 750 TEST SITE)

Inter-satellite laser communication system based on visual positioning assisted link establishment and link establishment method

The invention provides an inter-satellite laser communication system based on visual positioning assisted link establishment and a link establishment method. The system comprises a laser communication machine which comprises a processor and an optical head and is used for realizing laser link establishment and laser communication; the optical detection camera, the rotary table and the sensing positioning module form a visual positioning subsystem which is used for observing and positioning a passive end target, namely a communication opposite end satellite; the measurement and control data transmission module is used for receiving data and instructions from the ground and sending satellite telemetry data; and the satellite service management module is used for realizing task management and control management of a load single machine. The inter-satellite laser communication link establishment method is suitable for inter-satellite laser communication link establishment of satellites in orbit, especially inter-satellite laser communication link establishment in under-communication and high-dynamic scenes. By using visual positioning assistance, the dependence on a ground station and external data can be reduced, the laser link establishment time is shortened, the use scene is expanded, and the stability and robustness of a satellite laser communication system are enhanced.
Owner:INNOVATION ACAD FOR MICROSATELLITES OF CAS +1

Aerosol scattering coefficient and laser radar combined observation aerosol vertical profile correction method and device

The invention relates to the technical field of atmospheric environment monitoring and optical detection, in particular to an aerosol vertical profile correction method and device for aerosol scattering coefficient and laser radar combined observation, and the method comprises the steps: S1, collecting echoes according to an integral window, and obtaining distance correction echoes; s2, collecting a height scattering coefficient greater than or equal to 2, and aligning the height scattering coefficient with a distance correction echo grid / time; s3, background deduction, resolution matching and invalid height elimination are carried out to obtain preprocessed echoes; s4, generating an initial scattering coefficient profile; s5, identifying layered boundary division layer intervals; s6, establishing a correction factor model for each layer, adding overlap compensation to the near earth, and introducing a system constant; s7, taking the consistency of the total height of the theoretical echo and the preprocessed echo as a target, taking the consistency of multi-height scattering coefficients as a constraint, and carrying out joint solving to obtain correction factor distribution; and S8, outputting a correction profile, boundary information and a parameter set. According to the method, system constants and overlap compensation are solved by preprocessing echo layering scale gradient correction factors through combination of full-height consistency and two-height actual measurement constraints, and a correction profile is stabilized.
Owner:SHOU COUNTY METEOROLOGICAL BUREAU

An intelligent early warning method and system based on multi-source data fusion

PendingCN122634024AHydrometrySound sources
The application discloses an intelligent early warning method and system based on multi-source data fusion, relates to the technical field of early warning management, and comprises the following steps: acquiring hydrological time sequence data, underwater acoustic voice time sequence data and optical detection time sequence data of a target monitoring area, and generating a first trigger signal; in response to the first trigger signal, obtaining preliminary judgment attribute data and sound source positioning data; based on the sound source positioning data, acquiring updated image data sequence and updated turbidity data sequence; comparing the updated turbidity data sequence with a first turbidity threshold, and determining a target detection path from a plurality of preset detection paths according to a comparison result; correlatively analyzing first fine detection data or second fine detection data with real-time updated hydrological time sequence data, and generating trend deduction data; and based on the first fine detection data or the second fine detection data and the trend deduction data, generating hierarchical early warning result data and outputting the same. The application has the effect of improving early warning efficiency.
Owner:HENAN CHUSHANDIAN RESERVOIR IRRIGATION DISTRICT ENGINEERING CO LTD +3

Optical-ultrahigh frequency combined sensing GIS partial discharge monitoring system and method

The invention discloses an optical-ultrahigh frequency combined sensing GIS partial discharge monitoring system and method. The system comprises an ultrahigh frequency detection unit, an optical detection unit and a signal composite output unit, wherein the ultrahigh frequency detection unit and the optical detection unit are arranged in parallel; the ultrahigh-frequency detection unit is used for detecting ultrahigh-frequency electromagnetic signals in the GIS cavity; the optical detection unit comprises a large-view-field optical lens, an optical conduction assembly and a photoelectric converter which are connected in sequence; the large-view-field optical lens is formed by combining a plurality of aspherical lenses, and the large-view-field optical lens is used for converging optical signals in the GIS cavity; the optical conduction assembly comprises an optical fiber bundle which is used for receiving and conducting optical signals; the photoelectric converter comprises a silicon photomultiplier tube or a photomultiplier tube, and is used for converting a weak optical signal into an electric signal; the signal composite output unit is respectively connected with the ultrahigh frequency detection unit and the optical detection unit, and the signal composite output unit is used for outputting signals of the ultrahigh frequency detection unit and the optical detection unit.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +4

Transmission optical cryogenic probe station

The application provides a transmission type optical cryogenic probe station, which mainly comprises a vacuum cavity and a detection frame, the vacuum cavity is provided with a flange opening for light transmission; the detection frame is mainly designed by embedding a bearing and a sample supporting plate, the sample supporting plate is controlled by a motor to rotate by any number of turns, and a sample groove is designed in the form of a through hole to ensure that light can pass through the sample groove. The application realizes transmission type optical detection, when the detection sample needs to be replaced during the detection process, the detection sample can be replaced by only controlling the sample supporting plate to rotate, without manually changing the probe position, without re-performing the complicated processes of rewarming, back pressure, vacuumizing and cooling, thereby greatly reducing the complexity of the detection process and shortening the detection time.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Edge-lens-array-based transparent tomographic imaging method and sensing device

The present application relates to the field of optical sensing technology, and provides a transparent tomographic imaging method based on an edge convex lens array, which receives an incident light source at a first end face to generate a first light signal, and the first light signal is transmitted along the first end face to a circumferential side face. The first light signal is encoded by a convex lens array structure arranged at the circumferential side face, and at least one group of second light signals is obtained after encoding. The second light signal is sensed by at least one optical detection module. The optical detection module transmits the second light signal to a signal reconstruction module for tomographic reconstruction to obtain a third light signal. The present application also discloses a sensing device. The method and the sensing device can transfer the sampling and encoding process of the light signal from a plane to an edge region of an imaging plane, realize angle-related optical encoding of the in-plane propagating light signal, and obtain an imaging result through tomographic reconstruction. Thus, the technical problems of limited transparency and limited resolution in the existing transparent imaging scheme are overcome.
Owner:MACAU LIPUL INFORMATION TECHNOLOGY CO LTD

Absolute value encoder of photomagnetic dual-detection module collaborative layout structure

The invention discloses an absolute value encoder of an optomagnetic dual-detection module collaborative layout structure, and relates to the technical field of position detection, the encoder enables an optical coded disc and a magnetic ring to be coaxially installed on a mechanical base, and an optical detection subsystem and a magnetic detection subsystem are collaboratively arranged around a detected rotating shaft; collecting a magnetic initial position on a calibration platform by taking an optical absolute position as a reference, and storing a magnetic compensation mapping and a signal quality threshold value into a nonvolatile memory; in the operation period, the signal processing unit obtains an optical absolute position and a compensated magnetic position, the sampling state is divided into a normal state, an optical degradation state, a magnetic interference state and a two-way abnormal state according to the position difference value and the optical and magnetic signal quality, and the optical absolute position or the compensated magnetic position is selected to be output accordingly. And a frozen position or a safe position is output in a double-path abnormal state, and a health state field is attached, so that integration of position measurement, self-diagnosis and function safety is realized.
Owner:TITANIUM TIGER ROBOT TECH (SHANGHAI) CO LTD

Optical target sighting device

PendingCN122362651ALaser rangingOptical probing
An optical detection and tracking device for a target includes a control board, a frame, a turntable, an optical camera, and a light-transmitting cover. The turntable is driven by an azimuth motor to achieve 360° horizontal rotation, and the optical camera is driven by a pitch motor to achieve pitch scanning. The control board can switch between scanning mode-1 and tracking mode-2. In scanning mode-1, the azimuth and pitch motors rotate continuously or in steps, driving the optical camera's field of view to detect the target. In tracking mode-2, the azimuth and pitch motors are deflected to keep the target within the optical camera's field of view. The device obtains the target's projected distance by constructing an X / Y coordinate system within the field of view angle α, and drives the motors to deflect based on the difference, offsetting the target towards the center of the field of view to achieve tracking. Furthermore, a single scanning frame or multiple nested scanning frames can be constructed within the field of view, and offset signals are triggered by the scanning frame boundaries to achieve progressive and precise tracking. This device can automatically keep the target centered in the field of view, providing a basis for laser ranging and strong light illumination, and is adaptable to different optical structure designs.
Owner:南京瑞思光电技术有限公司 +2

Intracavity wafer centering system and working method thereof

ActiveCN112259486BWaferOptical probing
An in-cavity wafer centering system and a working method thereof, the in-cavity wafer centering system comprising: a main cavity; a wafer clamping platform located in the main cavity, a surface of the wafer clamping platform being adapted to place a wafer; a plurality of displacement holes penetrating through the wafer clamping platform; a plurality of ejectors respectively located in the displacement holes, the ejectors being adapted to reciprocate in the displacement holes, so that a top head of the ejectors changes between a position higher than an upper surface of the wafer clamping platform and a position lower than the upper surface of the wafer clamping platform; a plurality of optical positioning units, each optical positioning unit comprising: an optical detection component; an optical receiving component, the optical detection component being adapted to emit detection light to the optical receiving component, the detection light being adapted to partially irradiate an edge of the wafer in the main cavity; a correction unit, the correction unit being adapted to correct a position of the wafer according to light information obtained by the optical receiving component. The in-cavity wafer centering system can accurately position the wafer in the main cavity, and improve process repeatability.
Owner:SHANGHAI ANBANG SEMI EQUIPMENT CO LTD

Laboratory mouse calcium imaging wireless monitoring method, system and monitoring equipment

The invention discloses a laboratory mouse calcium imaging wireless monitoring method, system and monitoring device.The method comprises the steps that an optical detection structure is arranged beside a laboratory mouse intracranial calcium indicator marking area, and a fluorescence signal is captured; constructing a calcium imaging original data mapping model, and converting the fluorescence signal into initial calcium imaging data; pure calcium imaging data are obtained through adaptive filtering and noise reduction, and lightweight compression is carried out based on time sequence periodic characteristics; packaging transmission data through a low-power-consumption wireless transmission model of a plurality of groups of preset independent channels; after the external receiving terminal decompresses, visual information is generated through a calcium imaging reduction model; the system and the equipment correspond to the method, and are integrated with an optical detection structure, a signal processor, a wireless transmitter and other core components; the device thoroughly gets rid of the constraint of a long optical fiber, is miniaturized, low in power consumption, resistant to interference and good in biological compatibility, guarantees the accuracy of monitoring data and experimental continuity, and is suitable for related research of brain activities of laboratory mice.
Owner:CHINA THREE GORGES UNIV

Long-range infrared detection system with full entrance pupil fill and stacked array architecture

The long-distance infrared detection system with full entrance pupil fill factor and laminated array structure belongs to the field of optical detection technology. The prior art has complex structure and weak receiving light intensity. From the direction of incident infrared light to the direction of outgoing light, the front laminated lens array, the rear laminated lens array, the array rear stop and the rear lens group are arranged along the optical axis in sequence; the front laminated lens array and the rear laminated lens array are each composed of n*n sub-lenses a and sub-lenses b which are laminated; the cross sections of the sub-lenses a and the sub-lenses b are all square; the front laminated lens array and the rear laminated lens array form a lens array group, the entrance pupil of the lens array group is located at the incident mirror surface of the front laminated lens array, and the exit pupil of the lens array group overlaps with the position of the array rear stop; the front laminated lens array can be radially misaligned with the optical axis by ±Δ1, and the array rear stop is misaligned in the direction opposite to the misalignment direction of the front laminated lens array by ±Δ2. The present application can be used for searching and identifying infrared targets in the civil field.
Owner:CHANGCHUN UNIV OF SCI & TECH

Real-time monitoring system for combustion state of decomposition rotational flow ammonia-doped pulverized coal burner based on infrared temperature measurement

The invention relates to the technical field of a decomposition rotational flow ammonia-doped pulverized coal burner combustion state real-time monitoring system based on infrared temperature measurement, and adopts the core technical scheme that the decomposition rotational flow ammonia-doped pulverized coal burner combustion state real-time monitoring system comprises an optical detection module, a signal processing module, a data fusion module and a graded monitoring module, wherein the optical detection module synchronously collects infrared radiation and ultraviolet chemiluminescence signals of combustion flames through an optical lens and a spectroscope, and the signal processing module processes a multiband infrared image and a free radical luminescence image to obtain a two-dimensional temperature field and distribution parameters. The data fusion module extracts feature parameters and generates comprehensive feature vectors, and the hierarchical monitoring module outputs qualitative state labels and quantitative risk scores based on an analysis model. According to the scheme, the problems that in the prior art, due to dependence on a single monitoring parameter, diagnosis of the ammonia-doped combustion state is not comprehensive, and the risk of ammonia escape or flameout cannot be early warned are solved, and the beneficial effects that the monitoring accuracy is improved, multi-parameter intelligent fusion diagnosis is achieved, and the combustion efficiency is optimized through active early warning are achieved.
Owner:TSINGHUA UNIVERSITY

Compact integrated broadband test system

The invention provides a compact integrated broadband test system, which comprises a TFLN integrated chip module, an optical fiber pumping and modulation module, a terahertz radiation and receiving module and a data acquisition and analysis module, and is characterized in that all the modules are integrated to adapt to 200GHz-3.5 THz terahertz radio communication and radar test requirements; the TFLN integrated chip module comprises a TFLN integrated chip, and a thin film lithium niobate TFLN with the x cutting thickness of 500-700 nm is bonded to a SiO2 / 500 [mu] m high-resistance silicon substrate with the thickness of 4700 nm; the optical fiber pumping and modulation module comprises a mode-locked laser, a dispersion compensation unit, a Mach-Zehnder modulator (MZM) and an erbium-doped optical fiber amplifier (EDFA); the terahertz radiation and receiving module comprises a transmitting link, a receiving link and an optical detection branch; the data acquisition and analysis module comprises a balanced photoelectric detector PD, a data acquisition card and analysis software, the terahertz radio communication and radar test requirements can be subjected to data linkage analysis, the test process is simple, and time is saved.
Owner:BEIJING INST OF RADIO METROLOGY & MEASUREMENT

Optical satellite positioning method and device based on LM algorithm

The invention provides an optical satellite positioning method and device based on an LM algorithm, and relates to the technical field of optical navigation. The method comprises the following steps: detecting a preliminary attitude quaternion and a preliminary optical satellite vector of a carrier through optical detection equipment, and determining a first optical satellite vector according to the preliminary attitude quaternion, the preliminary optical satellite vector and a preset first calculation mode; based on a preset second calculation mode, a satellite ephemeris and the first optical satellite vector, constructing a nonlinear objective function about the longitude and latitude of the carrier; calculating a Jacobian matrix based on a preset third calculation mode; and under the condition that the non-linear objective function does not meet the preset threshold condition, performing LM iterative optimization on the non-linear objective function based on a preset fourth calculation mode and a Jacobian matrix so as to determine the target position of the carrier according to the longitude and latitude meeting the preset threshold condition. By iteratively optimizing the longitude and the latitude of the carrier in a complex denial environment, the positioning accuracy is improved.
Owner:启元实验室

Multi-head centering detection method

The present application relates to the field of optical detection technology, and more particularly to a multi-probe centering detection method, which drives a standard spherical lens to rotate, and synchronously completes optical data acquisition by means of multiple independent detection light paths; respectively fitting the data collected by each channel to obtain the corresponding spherical center rotation track of each channel; relying on the spherical center track, solving the spherical center difference of each channel relative to the rotation reference axis, and repeatedly performing the calibration process to obtain the measurement standard deviation of each channel; replacing the measured lens and repeating the detection process to obtain the spherical center track and the spherical center difference; combining the measurement standard deviation of each channel, the consistency error of the measured spherical center difference and the track circle fitting residual error to calculate the fusion weight of each light path channel; based on the obtained weight, using the weighted least squares method to fuse the effective spherical center difference data and output the comprehensive spherical center difference of the measured lens. The present application adopts a multi-light path synchronous detection and data weighted fusion scheme, effectively suppresses the random error and system error of a single channel, and improves the overall measurement accuracy of the lens spherical center deviation.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Fiber integrated modulation underwater long-distance optical detection system

The invention relates to the technical field of underwater optical imaging, in particular to a fiber integrated modulation underwater long-distance optical detection system, a laser illumination optical module is used for emitting two beams of light with an included angle to an underwater target water body area, the two beams of light form spatial variation interference fringes in the target water body area, and light and shade alternate illumination light is generated; the Sabortus imaging optical module is used for shooting a target water body area under the illumination light according to Sabortus imaging conditions to obtain an underwater space image; and the circuit control core group is used for controlling the laser illumination optical module to emit two beams of light and collecting underwater space images from the Sabortus imaging optical module. According to the invention, a fiber integrated modulation fiber interferometer structure is introduced as a light source output regulation and control module, so that an emergent beam forms an angle to realize space interference, the regulation and control performance of a light source part of a traditional Saborne imaging laser radar is effectively improved, the size and weight are effectively reduced, and the Saborne imaging laser radar has the advantages and characteristics of low cost and stability.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Optical detection and launch chamber of a portable reconnaissance and strike laser anti-UAV system

1. Name of the product of this design: Optical detection and launch chamber for a portable reconnaissance and strike laser counter-UAV system. 2. Purpose of this design product: used for target search, identification, tracking and high-power laser strike. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1. 5. Other situations that require explanation: The part covered with translucent pink in each view is the part that does not require protection, and the uncovered part is the part that requires protection.
Owner:SICHUAN HAWKE EYE OPTOELECTRONICS TECHNOLOGY CO LTD

Target detection method and system based on improved image matching

The application relates to a target detection method and system based on improved image matching, and belongs to the technical field of optical detection, which solves the problem of low image matching accuracy and difficulty in realizing accurate target detection in the prior art. The detection method comprises the following steps: image matching is performed on N camera images, a virtual-real fusion method is used to fuse the N camera images with a pre-constructed target imaging background digital model; a digital model containing a target is used to update each non-edge feature point, and the two-dimensional coordinates of each feature point in the corresponding camera image, the three-dimensional coordinates of each camera position, the shooting parameters of the camera and the two-dimensional coordinates of all the pixel points of each image corresponding to each non-edge feature point after the update are obtained; the three-dimensional coordinates of all the non-edge feature points are fused with a target preliminary model to obtain a target three-dimensional topography, so that the target is detected. The accurate detection of the three-dimensional topography of the target to be detected is realized.
Owner:齐鲁空天信息研究院

Method and apparatus for optical signal detection and processing

The present application provides a kind of optical signal detection and processing method and device, and the physiological signal of optical detection is obtained by detecting blood volume change in human tissue blood vessel through photoelectric sensor in the working process of optical equipment, it is characterized in that, the method includes the following steps in the computing module of the optical equipment: set a data buffer zone, the data buffer zone can store the physiological signal of optical detection of at least 3 predetermined time units;Acquisition and calculation step, the each DC component of the physiological signal of optical detection collected is stored in the data buffer zone, the variance of the value of the DC component is calculated, and the first waveform reference index value is obtained;Comparison step;The first waveform reference index value is compared with the pre-stored reference index value range;Determination step, if the first waveform reference index value is greater than the maximum value of the reference index value, then the signal of the output device is off;If the first waveform reference index value is not greater than the maximum value of the reference index value, continue to collect new physiological signal of optical detection, then the acquisition and calculation step is executed.
Owner:KINGFAR INTERNATIONAL INC

Optical-radar combined directional imaging method and device for rock mass structure around borehole

The application discloses a borehole surrounding rock mass structure optical-radar combined directional imaging method and equipment, comprising the following steps: S1, optical detection of a borehole inner wall is carried out by using a borehole television optical probe, and a borehole wall two-dimensional imaging profile is acquired; S2, rock mass structure surface morphological parameters are identified and extracted according to the borehole wall two-dimensional imaging profile; S3, borehole surrounding structure detection is carried out by using a borehole radar probe; S4, radar signal profile signal processing and migration imaging are carried out, and an imaging profile of a borehole surrounding rock mass structure surface is acquired; and S5, three-dimensional modeling of the rock mass structure surface is carried out. The borehole optical-radar combined observation provides more optical geological prior information, helps directional imaging rock mass structure identification, realizes multi-element data fusion in the rock mass structure surface inversion process, and completes fine identification of the rock mass structure surface.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1

A medical image parameter reconstruction method, system, device and medium

Embodiments of the present application provide a medical image parameter reconstruction method, system, device and medium, relating to the technical field of medical detection, the method comprising: acquiring a suspicious lesion position and structural information of the suspicious lesion of a human body tissue to be measured by an ultrasonic probe in a composite probe; guiding a light source end and an optical detection end of an optical probe in the composite probe to collect optical signals according to the structural information; constructing an optical scattering model according to the structural information and the optical signals; constructing a forward analytical model by using the optical scattering model to obtain an analytical expression of an absorption coefficient and a scattering coefficient of the human body tissue to be measured; performing inverse solution on the analytical expression by using a regression algorithm to obtain a solution parameter of the analytical expression; solving a target parameter according to a solution relationship; and solving the absorption coefficient and the scattering coefficient of the human body tissue to be measured by using the target parameter. The present application can improve the detection accuracy of metabolic function information of a lesion in the human body tissue to be measured.
Owner:SYMBOW MEDICAL TECH