258 results about "All optical" patented technology

The invention discloses an optical fiber three-dimensional shape sensor based on an optical frequency domain reflection technology and an application method of the optical fiber three-dimensional shape sensor, the optical fiber three-dimensional shape sensor comprises a base material and more than three optical fibers, and all the optical fibers are spirally wound and fixed on the surface of the base material at equal intervals and constant screw pitches to form distributed sensing units; according to the application method, measurement signals of all the optical fibers are obtained, and axial strain and strain are calculated; calculating the total curvature vector of the reconstruction curve of the measured object; calculating a bending direction angle and a curvature of the reconstruction curve of the measured object; performing differential calculation on the bending direction angle to obtain the torsion rate of the reconstructed curve of the measured object; and reconstructing the three-dimensional shape of the measured object according to the curvature and the torsion of the reconstructed curve of the measured object. The invention aims to realize synchronous measurement of bending, torsion and axial strain by using a distributed sensing unit formed by a multi-fiber structure which is spirally wound at the same interval and at a constant screw pitch.

The invention discloses an all-optical ultrasonic imaging system based on phase modulation, and belongs to the technical field of imaging. The system comprises a laser assembly, an ultrasonic detector, an interference device and an imaging assembly, the laser assembly is used for providing continuous laser for the interference device; the interference device comprises a reference optical fiber arm, a sample optical fiber arm and an optical path adjusting device and is located between the ultrasonic detector and the imaging assembly. Wherein the interference device is used for dividing laser into reference light and detection light, and transmitting the detection light to the ultrasonic detector for phase modulation; the optical path adjusting device is used for adjusting the optical path difference of the two arms, forming interference light of the reference light and the phase-modulated detection light and inputting the interference light into the imaging assembly; the ultrasonic detector is used for generating ultrasonic waves, projecting the ultrasonic waves to a to-be-detected area, and performing phase modulation on the detection light in response to ultrasonic echoes of the to-be-detected area; and the imaging assembly is used for generating a corresponding image according to the interference light.

A nonlinear all optical machine learning system (NAOMLS) with nonlinear optical resonator-based continuous wave and / or spiking neurons (NORs) and linear optical components or layers (LOL) learns to implement target tasks after machine learning based direct and / or indirect inverse design and / or optimization of the NORs and / or optimization of the LOL. The inversely designed and / or optimized NORs and the optimized LOL collectively define learnable mapping functions between input lights and output lights of the NAOMLS to meet target objectives for target tasks. In some embodiments, the NORs are indirectly and inversely designed to meet inversely designed objectives in order to be integrated with the NAOMLS so that the NAOMLS can function properly to meet target objectives for target tasks. In some embodiments, the NORs are integrated directly with the NAOMLS and inversely designed and / or optimized with the LOL to directly meet target objectives for target tasks.

An all-optical neural network that utilizes light beams and optical components to implement layers of the neural network is disclosed herein. The all-optical neural network includes an input layer, zero or more hidden layers, and an output layer. Each layer of the neural network is configured to simulate linear and nonlinear operations of a conventional artificial neural network neuron on an optical signal. In an embodiment, the optical linear operation is performed by a spatial light modulator and an optical lens. The optical lens performs a Fourier transformation on the set of light beams and sums light beams with similar propagation orientations. The optical nonlinear operation is implemented utilizing a nonlinear optical medium having an electromagnetically induced transparency characteristic whose transmission of a probe beam of light is controlled by the intermediate output of a coupling beam of light from the optical linear operation.

The invention relates to the technical field of optical system installation and adjustment, in particular to an optimal dislocation angle prediction method of an optical system error element based on a neural network. Comprising the steps of determining structure parameters of an optical system according to specific requirements; actually building an optical system and carrying out adjustment; after the adjustment is completed, recording surface error data of all the optical elements including the angles of the relative coordinate systems of all the optical elements; measuring and recording imaging performance index parameters of the optical system; changing the angle of the relative coordinate system, repeating the steps to obtain the surface error data of the optical element and the performance index parameter data set of the optical system, and inputting the surface error data and the performance index parameter data set into a modular neural network for training to obtain a prediction model; and obtaining surface error data of the optical element according to the requirement of the installation and adjustment task, and inputting the surface error data of the optical element and the performance index of the optical system into the prediction model to obtain the optimal dislocation angle of the optical element. The method has the advantages of low calculation time consumption and reduction of on-site installation and adjustment time.

The invention discloses a surface defect height quantitative detection method and device based on all-optical laser ultrasound. The method comprises the following steps: respectively exciting and detecting ultrasonic Rayleigh waves in a state that a pulse laser and a laser interferometer are arranged on the same side and different sides of a surface defect of a detected sample piece, extracting the transit time of an incident Rayleigh wave and the transit time of a transmission Rayleigh wave, and obtaining the height of the surface defect on the basis of the transit time of the incident Rayleigh wave and the transit time of the transmission Rayleigh wave. According to the invention, the detection of incident ultrasonic Rayleigh waves, reflected ultrasonic Rayleigh waves and transmitted ultrasonic Rayleigh waves is realized by moving the sample piece or the pulse laser and the laser interferometer through the linear motion platform, the height of the surface defect is calculated, the detected sample piece does not need to be clamped for the second time in the detection process, and high-efficiency in-situ quantitative detection is realized. In addition, nondestructive testing of the tested sample piece is achieved under a thermoelastic mechanism, the contact type defect of traditional ultrasonic testing is overcome, and the device is suitable for special environments such as high temperature, high pressure, intense radiation and strong corrosion.

The invention discloses an underwater vortex optical communication anti-turbulence method based on a photoelectric hybrid deep neural network, and the method comprises the steps: carrying out the all-optical information compression at a front end through the diffraction deep neural network through the fusion of a diffraction deep neural network and a convolutional neural network, and transmitting the processed information to a rear end of the convolutional neural network, a model task is completed through training, a predicted coefficient of a Zernike polynomial is output, prediction and compensation of ocean turbulence are achieved, and the mode purity of vortex beams is improved. The front-end diffraction deep neural network is utilized to effectively improve the problem that the rear-end convolutional neural network is difficult to process massive information, the photoelectric hybrid deep neural network model is high in integration, high in operation speed and accurate in light field signal processing, the power overhead for achieving turbulence resistance through the machine learning technology is saved, operation is easy, implementation is easy, and the method is suitable for popularization and application. The method has a wide application prospect in the aspects of vortex beam underwater communication and the like.

The invention discloses an optical detection device and a sample analyzer, in the optical detection device, a bright / dark field illumination assembly is used for emitting an illumination light beam, and a fluorescence excitation assembly is used for emitting an excitation light beam; the bearing table is used for bearing a to-be-detected sample; the infinite objective lens and the barrel lens are used for imaging a to-be-detected sample in a bright field to form a bright field imaging light beam, imaging the to-be-detected sample in a dark field to form a dark field imaging light beam, and performing microscopic imaging on fluorescent particles in the to-be-detected sample to form a fluorescent imaging light beam; the imaging receiving assembly is used for receiving the bright field imaging light beam, the dark field imaging light beam and the fluorescence imaging light beam. The optical detection device is an infinite microscopic optical system, can perform bright / dark field detection on the to-be-detected sample, can perform fluorescence detection on the to-be-detected sample, is compact in structure, high in sharing rate of all optical elements, saves optical element materials, and is low in cost.

The invention relates to the technical field of photoelectric switching, and particularly discloses a waveguide type optical switching matrix and a photoelectric hybrid switching system. According to the technical scheme, the waveguide type optical switching matrix is provided. The waveguide type optical switching matrix comprises an input optical chip, a middle optical chip and an output optical chip. The input optical chip comprises an N / P single-input 2M-output 1 * 2M optical switch array (M is equal to 2m, N is equal to 2n, and m, n and P are positive integers); the middle optical chip comprises a P * P optical switch array of 2MN / P sheet P input and P output; the output optical chip comprises an N / P sheet 2M input and single output 2M * 1 optical switch array; all the optical switch arrays of the input optical chip, the middle optical chip and the output optical chip are in P rows. Therefore, the whole matrix is strictly free of blocking, and the technical problems that a large-scale monolithic waveguide type optical switch matrix is difficult to produce in batches and use with high reliability and is difficult to maintain and replace are solved.

Systems, methods and subsystems for adjustment of optical path length (OPL) of optical beams of a multi-channel optical system, by using an OPL adjustment subsystem that includes an array of OPL adjustors, each configured and located to controllably adjust OPL of an optical beam of a corresponding optical channel. For each optical beam of each optical channel one or more updated properties associated with the optical beam is detected to determine, based on detected data analysis, required one or more updated adjustor-control properties, for achieving an associated desired OPL adjustment of the corresponding optical beam. Each OPL adjustor is controlled to adjust the OPL of its corresponding optical beam, according to the determined one or more updated adjustor-control properties. The detection, analysis and / or OPL adjustment may be performed in a parallel manner to all optical channels of the multi-channel optical system.

A method for determining a bitrate allocation of a plurality of optical channels in an optical transmission link with discretized channel bitrates, the method comprising determining an initial discretized bitrate allocation and a corresponding initial power allocation for the plurality of optical channels for supporting the initial discretized bitrate allocation with the proviso that all optical channels meet a pre-defined optical signal-to-noise, OSNR, threshold for the respective initial discretized bitrate allocated to the respective optical channel; starting from the initial power allocation, varying, for an investigated optical channel of the plurality of optical channels, a channel power of the investigated optical channel to estimate a highest supported discretized bitrate for the investigated optical channel, wherein the highest supported discretized bitrate is the highest discretized bitrate for which the investigated optical channel meets a corresponding OSNR threshold; including the investigated optical channel in an upgrade candidate subset of the plurality of optical channels for potential bitrate upgrades based on the highest supported discretized bitrate exceeding the initial discretized bitrate for the investigated optical channel; and providing the upgrade candidate subset to an upgrade allocation algorithm.

The invention discloses an ultrasonic detection system and method based on all optical fibers, and relates to the technical field of photoacoustic detection. The system comprises a light-induced ultrasonic transmitting module, an optical ultrasonic sensing module and an all-optical ultrasonic probe (3), the photoinduced ultrasonic transmitting module comprises a pulse laser (1) and a first optical fiber (2); the optical ultrasonic sensing module comprises a second optical fiber (5), a third optical fiber (6), a fourth optical fiber (7), a circulator and isolator (8), a photoelectric detector (9), a tunable laser (10), an acquisition card (11) and a computer (12); and the all-optical ultrasonic probe (3) comprises an optical fiber ultrasonic transmitting group (3-1) and an optical ultrasonic sensing group (3-2). The probe design is improved, the manufacturing process and the system structure are optimized, the manufacturing repeatability and the performance consistency are improved, meanwhile, the contrast ratio and the resolution ratio of imaging are improved, and noise interference is reduced.

The invention relates to the technical field of optical fiber sensing, in particular to a distributed optical fiber vibration-temperature combined monitoring method and system. Comprising the following steps: carrying out linear frequency modulation on single-frequency light waves output by a light source to enable the single-frequency light waves to serve as probe light for distributed vibration and distributed temperature sensing at the same time; linear sweep frequency light is injected into an optical fiber to be measured, and Rayleigh scattering and Raman scattering light signals in the optical fiber are separated by using a wavelength division multiplexer. And the vibration information of each point along the optical fiber is recovered by combining a Rayleigh scattering light signal with a coherent detection architecture through algorithms such as back-end matched filtering and the like. And the Raman scattering light signal is combined with intensity detection and a dual-wavelength difference algorithm, so that the temperature information of all optical fiber lengths can be recovered. According to the invention, vibration and temperature measurement is realized in the same system, and the problems of temperature and vibration measurement time synchronization, sampling rate alignment and the like in different systems are avoided.

The invention relates to an all-optical image generation method based on a diffraction neural network and a storage medium. The method comprises the following steps: firstly, performing spatial filtering on an initialized first light field generated by a laser through all-optical sparse coding to form a second light field in a sparse activation mode; and then inputting the second light field into a diffraction neural network generator, and transforming the spatial distribution characteristics of the second light field layer by layer through physical propagation to obtain a target optical representation corresponding to the second light field. And finally, focusing the output target optical representation to an image sensor through a focusing lens device to obtain a target image. According to the invention, an all-optical architecture is adopted for image generation, and an all-optical sparse coding mechanism is introduced in an input stage, so that image generation can be completed in a pure optical path, the problems of energy consumption and delay are reduced, the separability and expression ability of a potential space of a generator are improved, and the speed and efficiency of image generation are improved.

The invention relates to a fully collinear polarization entangled light source system, which realizes collinear series layout of all optical elements along a single optical axis by splitting and combining pump light by adopting a light beam shifter, and does not need precise alignment of non-collinear angles in structure, thereby simplifying the assembly and debugging process of the system and improving the production efficiency. The sensitivity to mechanical vibration is reduced, and the long-term operation stability of the system is enhanced. Meanwhile, the collinear layout effectively compresses the length of an optical path, the overall physical size of the light source system is effectively reduced, and a feasible technical approach is provided for achieving compact, modularized and automatic batch production of the entangled light source.

A computing system may be provided. The computing system may include an optical memory cavity configured to store signal pulses representing a current combination for a combinatorial optimization computation. The computing system may further include an optical processing cavity. The optical processing cavity may be configured to receive the signal pulses from the optical memory cavity, perform an all-optical 1-bit delay computation on the signal pulses to generate a feedback pulse for at least one signal pulse, and provide the feedback pulse to be coupled back to the optical memory cavity.

The invention belongs to the field of synthesis of luminescent materials, and relates to a preparation method and application of a zero-dimensional manganese-based hybrid halide nanofiber membrane with reversible photoluminescence and radiation luminescence conversion. The synthetic route is as follows: preparing a precursor from 4-dimethylaminopyridine (DMAP) and hydrochloric acid, then synthesizing zero-dimensional organic-inorganic metal chloride with manganese chloride hydrate (MnCl2. 4H2O) and anhydrous manganese chloride (MnCl2), further mixing the zero-dimensional organic-inorganic metal chloride with polyvinylidene fluoride (PVDF), and performing electrostatic spinning to obtain a nanofiber film; compared with the prior art, the stimuli-responsive reversible PL switch flexible fiber membrane prepared by adopting an electrostatic spinning technology has excellent stability and PL switch performance, and can show efficient PL and RL switching under external stimuli. Meanwhile, the flexible nanofiber film produced by the method has the advantages of one-step synthesis, quick response, repeatability, good portability and low cost, so that the flexible nanofiber film becomes a new application of molecular-level dynamic photonic devices for data storage, information security, optical logic gates, flexible X-ray imaging and the like.

The invention relates to an all-optical non-linear layer, an all-optical neural network system and a calculation method, the all-optical non-linear layer comprises a transparent carrier and at least one light limiting material covering the transparent carrier, and the all-optical non-linear layer is used for limiting the light intensity of an incident first light signal under the condition that the light intensity of the incident first light signal is larger than a preset threshold value. Performing nonlinear transformation on the first optical signal to transmit a second optical signal; wherein under the condition that the light intensity of the first light signal is greater than a preset threshold value, the absorptivity of the light limiting material to the first light signal is increased along with the increase of the light intensity of the first light signal. According to the all-optical nonlinear layer disclosed by the embodiment of the invention, the nonlinear response of light intensity can be realized under the condition that electric or magnetic assistance is not needed, and more flexibility and possibility are provided for the construction of an optical neural network.

The invention discloses a micro-fluidic chip flatness detection device and method based on an optical system, and relates to the field of optical instruments. The problems that in the prior art, the plane flatness of an internal flow channel and a detection cavity of a micro-fluidic chip cannot be detected, and consequently the stability of a detection result is insufficient are solved. An existing device needs to depend on technologies such as optical interference and microscopic imaging. The device comprises a lever dial indicator, a micro-fluidic chip, a hollow shaft rotating platform and the like. The lever dial indicator is arranged above the micro-fluidic chip, and an observation value is set, so that the lever dial indicator is in contact with the surface of the micro-fluidic chip; the lever dial indicator and the hollow shaft rotating platform are respectively arranged on the optical flat plate; the optical adjusting frame and all mirror surfaces in the mirror surface module are respectively mounted; a spectroscope, a compensation plate, a reflector and a light source of the mirror module are arranged on the same horizontal plane; the observation screen is mounted on the optical adjusting frame; meanwhile, all the optical adjusting frames are respectively arranged on the optical flat plate; the method is also suitable for the application fields of medical treatment, environmental monitoring and the like.

The invention relates to a space debris position and speed all-optical rapid measurement system and method, and relates to the technical field of space debris orbit determination cataloguing. The measuring system comprises a laser, a collimating lens, a central reflection spectroscope, a fast scanning mirror, a narrow-band spectroscope, a telephoto lens, space debris and the like. The time series of key parameters such as the angle, the angular velocity, the distance and the velocity of the space debris relative to the observation platform can be measured at the same time, and the method is used for rapidly determining the space debris orbit. According to the invention, an optical camera with a large aperture, a large field of view and a single-photon detector is used, identification and angle measurement of a plurality of dark and weak space debris can be realized, and rapid measurement of the orbital number of the space debris is realized by adopting laser ranging and speed measurement with a common aperture design. Rapid distance measurement and speed measurement of multiple targets in a view field are realized through laser pulse composite modulation and a fast scanning mirror tracking mechanism, and a more effective solution is provided for the initial orbit element measurement problem of unknown space debris.

The invention relates to an optical flow calculation method based on global matching, and belongs to the field of optical flow estimation. The method comprises the following steps: acquiring two continuous video frames in a video stream, respectively extracting corresponding dense features from the two continuous video frames, and performing feature enhancement on the dense features; calculating the similarity between the pixel features of the two continuous video frames, and obtaining the corresponding relation of the corresponding pixel coordinates according to the differentiable matching layer, thereby obtaining the corresponding optical flow; performing optical flow prediction according to an optical flow propagation mode based on self-attention, and taking the predicted optical flow as a calculation result; and designing an L1 loss function, and supervising all optical flow calculations. According to the method, the optical flow is re-expressed as a global matching problem, the long-standing problem of large displacement is effectively solved, and meanwhile, the calculation efficiency is improved through parameter sharing and an attention mechanism.

A cable state evaluation method and apparatus, and a terminal device and a storage medium. The method comprises: acquiring sensing data by means of an optical fiber sensor; dividing sampling points, and dividing sampling points on the same optical fiber segment into one group; integrating sensing data of each group of sampling points and inputting same into an optical fiber segment state evaluation model, so as to obtain a state evaluation result of a corresponding optical fiber segment; and on the basis of state evaluation results of all optical fiber segments, obtaining a cable state evaluation result of an entire optical fiber. Data collection, processing and evaluation can be automatically performed, thereby reducing manual intervention and improving the work efficiency and the accuracy of cable state evaluation results.

A periscopic camera module, including: a first reflective element including a first reflective surface and used to reflect incident light and make the incident light longitudinally turn; an optical lens used to receive the light reflected by the first reflective element and output an imageable light beam to an image space; a second reflective element including at least one second reflective surface and adapted to make the imageable light beam transversely turn at least once; and a photosensitive chip adapted to receive the transversely turned imageable light beam, wherein at least one of all optical surfaces of the first reflective element and the second reflective element is provided with a light blocking structure, and the light blocking structure is arranged at an edge region of the at least one optical surface; and the optical surface includes a reflective surface, an incident surface, or an exit surface. The volume of the periscopic camera module can be reduced such that the structure of the periscopic camera module is more compact, and it can be better adapted to an optical lens with a large focal length, and can reduce or avoid the risk of introduction of stray light.

The utility model discloses a multi-light-path adjusting device which comprises a base, an adjusting seat, a first adjusting plate and a second adjusting plate, the base is of a C-shaped structure, and a groove for containing the adjusting seat is formed in the front end of the base; a plurality of light path generators are rotationally mounted on the adjusting seat, spherical adjusting pieces are arranged on the outer sides of the light path generators, and adjusting rods are arranged at the rear ends of the light path generators; an adjusting groove is formed in the adjusting base, a plurality of vertically-arranged first sliding grooves are formed in the first adjusting plate, a plurality of horizontally-arranged second sliding grooves are formed in the second adjusting plate, and the pitch angle and the horizontal dip angle of the light path generator can be adjusted through the first adjusting plate and the second adjusting plate. According to the utility model, the plurality of light path generators arranged in parallel are rotatably mounted on the adjusting seat, the light path directions of all the light path generators are synchronously adjusted, simultaneous calibration of multiple light paths is realized through one-time calibration translation, the difficulty of multi-light path adjustment is reduced, and the light path adjustment efficiency is improved.

The invention belongs to the technical field of intelligent optical fiber devices, and particularly relates to an optical fiber memristor of a minimum neural network, and the memristor comprises a probe optical module which emits low-power continuous probe light; the erasing pulse module emits multi-wavelength regulation and control pulse light, and the multi-wavelength regulation and control pulse light and the low-power continuous probe light are combined to form erasing pulse light; erasing pulse light is input into the two ends of the single-mode optical fiber memristor module respectively; the photoelectric detection module is coupled with the single-mode optical fiber memristor module and monitors the state and the output signal of the single-mode optical fiber memristor module in real time. According to the optical fiber memristor designed in the invention, a bidirectional pulse light regulation and control mode is utilized, so that non-volatile storage with higher storage capacity can be realized; the minimum neural network is constructed through an all-optical means, training and operation of optical multiplication can be achieved, and compared with a traditional electrical means, the operation speed is higher, and energy consumption is smaller.

The present invention discloses a high-temperature and high-pressure temperature field measurement method based on low-resolution ultraviolet absorption tomography. The method comprises: selecting the electronic transition of NO or OH in the ultraviolet band as the absorption spectrum measurement object according to the temperature of the temperature field to be measured, and selecting the vibration spectrum band of the measurement object according to the concentration and size conditions of the temperature field to be measured to determine the wavelength range to be measured; selecting a broadband light source and a low-resolution spectrometer as the light source and detector required for the absorption spectrum measurement, respectively; establishing an optical path network for absorption tomography, wherein each optical path uses the selected broadband light source and low-resolution spectrometer, and the absorption spectrum of the measurement object is measured on all optical paths. The temperature of each spatial position is calculated from the absorption spectrum signals collected by each optical path, and the temperature field is reconstructed. The present invention can realize accurate temperature measurement by absorption spectrum under high-temperature and high-pressure conditions, and realize accurate measurement of high-temperature and high-pressure temperature fields by combining with a tomography reconstruction algorithm.

This invention provides a power supply method, a power supply device, an electronic device, and a readable storage medium, relating to the field of power supply technology. The power supply method includes the following steps: at a first moment, determining the maximum power consumption of each optical module in the power supply equipment under all operating conditions; summing the maximum power consumption of all optical modules at the first moment to obtain the total power consumption of all optical modules in the power supply equipment under operating conditions at the first moment; and modifying the protection threshold of the power supply module of the power supply equipment based on the total power consumption. In this invention, by determining the total power consumption of all optical modules under operating conditions and modifying the protection threshold of the power supply module of the power supply equipment, in the event of a short circuit or micro-short circuit in an optical module, since the modified protection threshold matches the total power consumption of all optical modules in the power supply equipment under operating conditions, the power supply module can perform a timely response operation, thereby effectively and promptly protecting the power supply equipment and the optical modules.

The invention discloses a semiconductor resistivity nondestructive testing method and system based on modulation light reflection, relates to the technical field of semiconductor resistivity detection, and aims to accurately measure a modulation component delta R / R of light reflectivity through a light reflection modulation signal so as to calculate the semiconductor resistivity and further realize quantitative measurement of the semiconductor resistivity. The sensor has ultrahigh sensitivity, can detect tiny carrier concentration change, and is very sensitive to electrical properties of surface and near-surface areas; meanwhile, the spatial resolution is high, and the micron-scale light spot at the sample is suitable for micro-area measurement; a complete optical method does not cause any damage to the sample; various types of samples can be measured; the measuring speed is fast, and the system can be easily integrated in a production line for real-time monitoring.

The invention belongs to the technical field of intelligent optical fiber devices, and particularly relates to a multi-core optical fiber neuron and optical fiber sensing mode recognition system which comprises a regulation and control pulse light module, an optical fiber sensor module, a seven-core optical fiber neuron module and a photoelectric detection module. The pulse light regulation and control module is used for regulating and controlling the combined continuous laser into pulse laser so as to obtain pulse light, and after feedback pulse light energy is coupled, the pulse light enters the optical fiber sensor module; the optical fiber sensor module is used for sensing external sensing information and then carrying out intensity modulation on incident pulsed light, and the intensity-modulated pulsed light with various wavelengths is combined and then incident into the seven-core optical fiber neuron module. According to the invention, the seven-core optical fiber can be used as the substrate to construct the seven-core optical fiber neuron so as to realize an all-optical mode identification task.

The invention discloses a touch response speed increasing scheme, which comprises the following steps of: setting a reference image A and initializing the reference image A into a blank image, and setting each frame of real-time image B and initializing the real-time image B into a blank image; setting an unqualified light intensity threshold value t; setting a row number M and a column number N; the method comprises the following steps: drawing a reference image A by using all qualified light paths of a full screen, dividing the reference image A and a real-time image B into M * N matrix small areas according to a rule of M rows and N columns of the full screen, dividing the full screen into a plurality of small areas by establishing the reference image during initialization, and recording a light path set passing through each small area and each small area in an associated manner; the method comprises the following steps: quickly judging each small area of each frame to obtain whether each small area has a blocked light path or not and the ratio characteristic of the number of the blocked light paths to the number of all light paths passed by the small area, and quickly generating different small area images in a classified manner, thereby effectively reducing the time consumption for forming the most critical real-time image of each frame and improving the real-time image forming efficiency. The speed of the whole image algorithm is improved, and a foundation is laid for drive-free application of the image algorithm.