1539 results about "Naked eye" patented technology

An ultrasonic inspection robot for a threaded connection structure of a rotor internal cavity includes a main rack, a clamping module, a lifting module, a rotating module, a telescopic module and a probe buffer module. The present invention can be operated in a narrow, long and strongly restricted space, realizes the inspection of the nut that is inaccessible to the naked eye by carrying testing probes realizes the automated measurement function of placement and pressing of the carried probes, the switching between different test points, and all the points to be measured in an axial direction, and the deformation action of the device, realizes the extension and reduction of the axial and radial dimensions of the device, and completes all functions of placing and taking out the whole device. Moreover, the above functions can be realized only through one device.

The invention provides a digital human interaction method and system based on naked eye 3D visualization, and the method comprises the steps: obtaining query content provided by a user in a multi-modal manner, carrying out the semantic understanding and intention analysis of the query content through a natural language processing technology, and obtaining user intention data; performing matching search in a preset content database according to the user intention data, and if a highly related answer template or video clip exists, calling preset content and feeding back the preset content to the user; according to different answer sources, corresponding digital human video visualization schemes are adopted, a digital human driving engine is used for matching mouth shapes, expressions and actions, and matched digital human videos are synthesized; and displaying the digital human video through a transparent LCD screen.

The invention discloses a welding device and method for metal corrugated pipe production, and relates to the technical field of metal pipe production. A sliding rail is arranged at the top of the base, a collecting box is arranged on one side of the back of the sliding rail, two linkage plates are symmetrically arranged in the sliding rail, an L-shaped plate is arranged at the edge of the top of the base, an annular rail is arranged on the side, close to the axis of the base, of the L-shaped plate, and a welding assembly is arranged in the annular rail. Two deviation prevention devices are symmetrically arranged on the top of the base, and anti-falling devices are arranged on the inner sides of the deviation prevention devices. By means of the inclined plate and the round roller, it is guaranteed that a pipe entering the limiting ring is located in the center of the interior of the limiting ring all the time, the phenomenon of slight deviation in the pipe alignment process is avoided, and workers need to observe the deviated direction with the naked eyes so that manual adjustment can be conducted; and the alignment accuracy between the two pipes is effectively improved, and the welding preparation time is shortened.

The invention discloses a naked-eye 3D display optimization method based on real-time eyeball tracking, and particularly relates to the technical field of naked-eye 3D display, and the method comprises the steps: capturing eyeball movement data in real time through a visual angle tracking sensor, and collecting illumination information in combination with an ambient light sensor; depth perception parameters are calculated based on pupil diameter variation and frequency, and a time sequence prediction type dynamic compensation coefficient is generated in combination with eyeball movement acceleration; acquiring an initial fixation point coordinate by using an improved spherical projection mapping model, and performing compensation coefficient correction to obtain a real-time coordinate; and finally, according to the real-time coordinates, dynamically adjusting the refractive index distribution of the nanostructure layer, the rotation angle of the polarizer, the focal length of the optical lens and other optical modulation parameters. The real-time distance is calculated through the binocular parallax algorithm, the depth mapping value is generated by combining the focal length of the camera and the baseline distance, the method can adapt to the illumination change and the user view angle, and the 3D display effect is optimized.

The invention is suitable for the technical field of naked eye 3D, and provides a naked eye 3D interaction method and system based on OSG, and the method comprises the following steps: loading an OSG library and a deep learning model, loading a 3D model, a map and a light source through OSG, and obtaining an OSG scene; collecting interaction data of a user in real time, inputting the interaction data into the deep learning model, and performing real-time analysis; outputting the visual angle parameter and the model parameter obtained through analysis, and adjusting the camera position and the model posture in the OSG scene according to the visual angle parameter and the model parameter; according to the optimized OSG scene, utilizing a computer vision technology to generate a parallax image, and utilizing a deep learning algorithm to optimize the parallax image so as to improve the reality sense and the stereoscopic sense of the 3D effect; and synthesizing the optimized parallax image into a naked eye 3D image. According to the invention, real-time and intelligent adjustment can be carried out according to the actual interaction behavior of the user, and the reality sense and stereoscopic impression of the 3D effect are strong.

The invention belongs to the technical field of float flowmeter detection, and particularly relates to a float flowmeter detection device for a visual imaging small oxygenerator, which comprises a detection bin, a test board is fixed on the left side of the interior of the detection bin, a float flowmeter is arranged above the test board, a pressing cylinder is fixed on one side of the test board, and the pressing cylinder is fixed on the other side of the test board. The output end of the pressing air cylinder makes contact with the upper end of the float flowmeter and presses the float flowmeter. An air pressure valve is fixed to the left side of the upper portion of the detection bin, the lower portion of the float flowmeter is connected with an air inlet pipe, the air inlet pipe is connected with an external air source pipeline, the external air source pipeline is connected with the air pressure valve, the upper portion of the float flowmeter is connected with an exhaust pipe, and the air pressure valve is manually adjusted. In the prior art, the position of the floater is manually identified by naked eyes, the precision is poor, and the pressure on the upper side and the lower side of the floater cannot be kept constant, so that the test quality is greatly reduced.

The embodiment of the invention discloses a naked eye three-dimensional interaction method and device and computer equipment. The method comprises the following steps: determining at least one three-dimensional virtual object corresponding to a target preset naked eye three-dimensional interaction scene, and determining an initial display parameter corresponding to the at least one three-dimensional virtual object; controlling the at least one three-dimensional virtual object to perform motion display in the target preset naked-eye three-dimensional interaction scene according to the initial display parameter so as to generate a naked-eye three-dimensional picture corresponding to the at least one three-dimensional virtual object; obtaining interaction feedback information generated when the user interacts with the at least one three-dimensional virtual object according to the naked eye three-dimensional picture; and according to the interaction feedback information, generating an update display parameter corresponding to the at least one three-dimensional virtual object, and based on the update display parameter, controlling the at least one three-dimensional virtual object to perform motion update display in the naked eye three-dimensional picture. Therefore, a user watches and interacts with the three-dimensional virtual object which is movably displayed in the naked-eye three-dimensional picture, the sight distance can be improved and adjusted, and asthenopia can be relieved.

The invention discloses a naked-eye 3D display system based on a light field reconstruction algorithm, particularly relates to the technical field of naked-eye 3D, and comprises a controlled scattering medium light field acquisition environment, scattering feature enhanced light field data analysis, a hierarchical depth optimization engine and dynamic wavefront modulation display control. According to the invention, through the controlled scattering medium environment design, a scattering signal which is regarded as interference in the traditional technology is converted into a depth characteristic carrier, the data acquisition quality in a complex optical environment is obviously improved, richer and more reliable basic data are provided for light field reconstruction, and the data acquisition efficiency is improved. An innovative hierarchical deep optimization engine is combined with a multi-scale confidence evaluation and discontinuous region processing method, so that the problem of edge blur in a shielding boundary and a geometric structure complex scene is effectively solved, and the geometric consistency and detail fidelity of a reconstructed light field are greatly improved.

The invention provides connector assembly automation equipment, a connector comprises a frame and a contact pin, the connector assembly automation equipment comprises a divider turntable rotating around the axis of the divider turntable, and a plurality of stations matched with the frame are arranged on the divider turntable at intervals in the circumferential direction. A frame feeding mechanism, a contact pin feeding mechanism, a contact pin press-fitting mechanism and a product discharging mechanism which correspond to different stations are distributed on the outer side of the divider rotating disc. According to the connector assembly automation equipment, manual operation is replaced by automatic and intelligent equipment, the production efficiency is comprehensively improved, efficient line production can be achieved through the multi-station divider rotating disc and the automatically-controlled feeding and discharging system, the bottleneck in production is reduced, the output speed of products is increased, and the production efficiency is improved. The visual inspection mechanism is introduced to replace naked eyes of operators to observe the assembly quality, and the qualified rate of products is increased.

This application discloses a screen brightness adjustment method, an electronic device, and a computer-readable storage medium, to resolve a problem that visual perception of a user is greatly affected because a brightness jump visible to naked eyes occurs on a screen of the electronic device when the electronic device performs dimming mode switching. The screen brightness adjustment method is applied to a first electronic device and includes: The first electronic device obtains control information corresponding to a to-be-displayed picture frame, where the to-be-displayed picture frame is a kth picture frame obtained after it is detected that the dimming mode switching occurs, and 1≤k≤M; screen brightness indicated by the control information corresponding to the to-be-displayed picture frame is lower than first screen ideal brightness; and the first screen ideal brightness is a preset brightness threshold that triggers the first electronic device to perform the dimming mode switching; and when displaying the to-be-displayed picture frame, the first electronic device adjusts screen brightness of the first electronic device to the screen brightness indicated by the control information corresponding to the to-be-displayed picture frame.

The invention discloses a naked eye 3D transparent display imaging system, and relates to the technical field of 3D transparent imaging. The method comprises the steps that a multi-scale parallax layer construction module is used for decomposing a multi-scale parallax layer and dividing regional images; the dynamic viewpoint prediction module is used for generating two-eye three-dimensional space coordinates through human eye parameters; the parallax scheduling mapping module is used for performing space mapping according to the binocular three-dimensional space coordinates to generate a target visual angle image; the background compensation module is used for carrying out brightness correction on the target view angle image to obtain a compensated view angle image; the directional light field regulation and control module is used for processing the compensation view angle image and generating directional light field information; and the full-layer fusion module is used for processing directional light field information, eliminating interface artifacts between layers and generating a naked-eye 3D transparent display image. Through multi-scale parallax construction, dynamic viewpoint tracking and multi-layer light field fusion, the visual angle adaptability and image fusion quality of naked eye 3D display are improved, and a transparent three-dimensional imaging effect with high immersion, high consistency and high definition is realized.

The invention relates to an intelligent monitoring system for prevention and control of diseases and insect pests for bean planting, in particular to the field of intelligent monitoring of prevention and control of agricultural diseases and insect pests, and can realize extremely early precise recognition and early warning of diseases and insect pests of bean crops. The weak lesion spectral features and the continuous deterioration trend of the plant can be sensitively captured in a stage which is difficult to perceive by naked eyes, real diseases and environmental interference are effectively distinguished, the system can automatically locate a suspicious lesion area by using a weak supervised learning mechanism and only needing image-level labeling, the dependence on expensive pixel-level labeling data is greatly reduced, and the accuracy of the system is improved. Finally, a high-confidence early warning signal is output through multi-source information collaborative decision, a scientific basis is provided for accurate and green prevention and control, blind pesticide application is effectively avoided, and crop health and yield are guaranteed.

Disclosed are devices with dynamic optical properties suitable for use as security or authentication devices, for example for documents or items of importance or value, in order to help prevent counterfeit of the same. Such devices, at least in selected embodiments, enable observation of dynamic changes or moving entities within the device by collective or enhanced imaging of the dynamic changes or moveable entities, the motion or position of which may otherwise be difficult to observe, or indiscernible to, the naked eye.

The invention discloses a transformer substation hoisting operation suspension arm movement distance monitoring device, and belongs to the technical field of distance monitoring. A transformer substation hoisting operation suspension arm moving distance monitoring device comprises a bottom plate, a rotating mechanism is installed in the middle of the bottom plate, a rotating plate is installed on the rotating mechanism, a suspension arm body is installed on the rotating plate, an installing base is installed on the top of the suspension arm body, a driving box is fixed to the installing base, and a distance monitoring mechanism is installed in the driving box. Supporting mechanisms are installed at the four corners of the bottom plate. The problem that when an existing hoisting mechanism works, a full-time worker needs to stand on the ground and look up with naked eyes for observation and judgment, and the working safety of a crane is affected due to low accuracy is solved, the safety distance of a hoisting arm body does not need to be manually observed with the naked eyes, the working safety of the hoisting arm body is improved, and the working efficiency is improved. And normal work of the suspension arm body is guaranteed, so that the working efficiency is improved, and dust and impurities are prevented from entering the driving box.

The invention relates to the technical field of medical instruments, in particular to an oral cavity opening device clinically applicable to the stomatology department, and aims to solve the technical problems that an existing oral cavity opening device is simple in structure and single in function, the opening size cannot be freely adjusted, and meanwhile during examination, the opening size cannot be freely adjusted. In the prior art, medical staff need to observe pathological changes in the oral cavity of a patient with naked eyes, efficiency is low, and the risk of cross infection is brought to the medical staff. According to the technical scheme, the device comprises a fixing support, two positioning blocks are fixedly installed in an inner cavity of the fixing support, and a limiting rod is rotationally connected between the opposite sides of the two positioning blocks through a bearing. The oral cavity expanding device has the advantages that by arranging the expanding unit, the opening and closing degree of the oral cavity of a patient can be adjusted, by arranging the positioning unit, the expanding unit can be positioned, the use stability of the expanding unit is improved, by arranging the camera shooting mechanism, the oral cavity of the patient can be shot, and cross infection caused by visual inspection of medical staff is avoided.

The invention relates to a naked eye 3D binocular image acquisition and real-time processing system based on hardware synchronous triggering, and belongs to the technical field of image processing and three-dimensional display. According to the system, a hardware synchronous triggering mechanism is adopted, a time sequence synchronous control unit is used for sending a synchronous pulse signal to a binocular image sensor, and strict synchronization of left and right viewpoint image acquisition is ensured. The image signal processing unit processes collected original data, the stereo parallax correction module performs epipolar correction, and the sub-pixel interleaving module generates a composite view frame according to grating parameters of the display terminal. The system realizes high-speed data transmission through a double-buffer direct memory access DMA mechanism. The problems of visual tearing and weak stereoscopic impression caused by asynchronous binocular image acquisition in the prior art are solved, nanosecond-level synchronization precision is realized, optical crosstalk is reduced, and smoothness and comfort of stereoscopic display are ensured.

The embodiment of the invention discloses a naked eye three-dimensional image display method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a plurality of three-dimensional virtual sub-objects and initial display parameters corresponding to the plurality of three-dimensional virtual sub-objects in a target naked-eye three-dimensional scene, wherein the plurality of three-dimensional virtual sub-objects have a logic association relationship; displaying initial naked-eye three-dimensional pictures corresponding to the plurality of three-dimensional virtual sub-objects in the naked-eye three-dimensional display screen according to the initial display parameters; generating space display parameters of the plurality of three-dimensional virtual sub-objects according to the logic association relationship; and dynamically adjusting the three-dimensional space positions of at least part of the three-dimensional virtual sub-objects in the plurality of three-dimensional virtual sub-objects according to the space display parameters so as to update the initial naked-eye three-dimensional picture to obtain a target naked-eye three-dimensional picture. In this way, the spatial display parameters are generated through the logic incidence relation to adjust the three-dimensional space position of the three-dimensional virtual sub-object, and simulation stimulation of the human brain in the three-dimensional space can be achieved when the human eyes watch the three-dimensional virtual sub-object.

The invention discloses a method and system for detecting surface defects of a sheet metal part before coating, and the method comprises the following steps: S1, multi-modal data collection: synchronously collecting three-dimensional point cloud data and a hyperspectral image of the surface of the sheet metal part through a laser three-dimensional contourgraph and a hyperspectral camera, and recording environment illumination and temperature parameters at the same time; s2, data preprocessing: performing denoising and smoothing processing on the three-dimensional point cloud, extracting surface contour features, and performing defective pixel repair, waveband selection and reflectivity correction on the hyperspectral image; according to the surface defect detection method and system before coating of the sheet metal part, through multi-modal data acquisition and fusion of the three-dimensional morphology and the hyperspectral features, compared with traditional single visual detection, the surface defects of the sheet metal part can be more comprehensively and accurately recognized, particularly, tiny defects and oxide layer defects which are difficult to distinguish by naked eyes, the recognition rate is remarkably increased, and the detection accuracy is improved. And by adopting the lightweight deep learning model, the detection precision is ensured, and the reasoning speed is improved at the same time.

The invention relates to the technical field of fire early warning, in particular to an early fire early warning system based on AI image recognition, and the system comprises an image collection module which is used for obtaining the video stream data of a monitoring area in real time; an AI image analysis module which is in communication connection with the image acquisition module and is used for receiving the video stream data and carrying out real-time analysis on video frames based on a pre-trained fire identification model so as to extract visual features related to the fire; and the early warning judgment module is in communication connection with the AI image analysis module and is used for receiving an analysis result of the visual features. According to the early fire early warning system and method based on AI image recognition, through video image analysis, the system can recognize weak flame or smoke characteristics at the initial stage of a fire and when naked eyes do not obviously see the characteristics, and the delay problem that a traditional smoke-sensing and temperature-sensing detector needs to wait for physical parameters to be diffused to the detector to be triggered is solved.

The invention discloses an optical fiber bundle end face performance test method, device and equipment. The method comprises the steps of obtaining a target performance test requirement; analyzing the target performance test requirement to generate at least one target test parameter; generating a target test scheme corresponding to the at least one target test parameter, wherein the target test scheme comprises one or more combinations of a light source starting process, a light source brightness adjusting process, a light source position adjusting process, a target test board position adjusting process and a data processing process; and controlling the corresponding light source and / or the target test board according to the target test process, acquiring an end face image of the optical fiber bundle and / or an imaging image of the target test board, and then carrying out data processing to generate a performance test result. According to the invention, various performance detection of the optical fiber bundle can be fully automatically completed, errors caused by naked eye detection are avoided, and meanwhile, the brightness of each light source is adjustable, so that the optical fiber bundle detection device adapts to optical fiber bundles with different lengths and different transmittances.

The invention discloses a naked eye light field 3D display system and method based on human eye tracking, electronic equipment and a storage medium. The naked eye light field 3D display system comprises a human eye tracking module, a data processing and transmission module, a 3D content generation and rendering module and a naked eye light field 3D display system. The human eye tracking module is used for positioning and tracking human eye positions in real time; the data processing and transmission module is used for carrying out filtering and prediction processing on the human eye position coordinates in real time; the 3D content generation and rendering module is used for generating and rendering 3D content of a corresponding position according to the obtained human eye position coordinates; and the naked eye light field 3D display system is used for receiving the data sent by the 3D content generation and rendering module and displaying 3D scenes at different viewing positions in real time. According to the invention, a user can experience a light field 3D effect without wearing any auxiliary equipment while high-resolution display content is brought, and more comfortable and natural naked-eye light field 3D experience is brought to the user.

The invention discloses a human-computer interaction method of a naked-eye 3D digital human based on an AI large model, and particularly relates to the technical field of human-computer interaction, and the method comprises the steps: firstly, loading resources needed by the operation of the naked-eye 3D digital human for a trained AI large model, and carrying out the operation of the naked-eye 3D digital human through the constructed AI large model for the operation of the naked-eye 3D digital human; the method comprises the following steps: acquiring and fusing multi-modal information of an interaction request initiated by a user to a naked eye 3D digital human, then performing intention understanding on the fused multi-modal information, and generating a personalized interaction strategy information text according to an intention understanding vector; secondly, a response content text is generated through the naked eye 3D digital human; and finally, the user receives the response content text and feeds back the response content text, the feedback is analyzed, and optimization is performed according to an abnormal analysis result. According to the method, the AI large model operated by the naked eye 3D digital human is constructed, fusion interaction of multi-modal information is realized, intentions and demands of the user are deeply understood, and communication between the naked eye 3D digital human and the user is smoother.

According to the nucleic acid extraction and detection device and the use method, by forming a plurality of communicating holes and taking a rotary valve as a communicating medium, communication among functional chambers is achieved, then sample transfer is achieved, the whole transfer process is completed in an internally-closed environment, sample pollution is not caused, and the detection efficiency is improved. The rotating cover and the rotating valve rotate synchronously, and the rotating cover is also closed when the rotating valve is closed, so that the sealing performance of the cavity in the uniform mixing and reaction process is ensured, and the stability of a pre-stored reagent and the safety of the reaction process are ensured; the sample transfer step is reduced, the pollution risk is reduced, the whole process is completed only through manual operation without a power supply or other equipment, and the method can be used for household self-inspection or in areas with limited resources or even in extreme environments without power supply.

The embodiment of the invention provides an orthokeratology lens design method, an orthokeratology lens comprises an adaptive arc area, and the method comprises the following steps: S10, acquiring curvature distribution of a cornea adaptive girdle area of naked eyes of a testee, the cornea adaptive girdle area corresponding to the adaptive arc area; s20, establishing a coordinate system by taking the cornea center as an original point or a pole, and obtaining a mapping relation between the curvature of the cornea adaptive annular zone and different angles according to curvature distribution; s30, obtaining the curvature change rate of the cornea adaptive annular zone according to the mapping relation, and determining a curvature change rate threshold value; s40, determining a plurality of annular sectors according to the curvature change rate of the cornea adaptive annular zone and a curvature change rate threshold value; and S50, determining curvature distribution of an area corresponding to the annular sector in an adaptive arc area of the orthokeratology lens according to the curvature distribution of the annular sector. The fitting degree and the shaping effect of the corneal contact lens and the cornea are improved, the correction effect is improved, and the lens wearing stability can be improved.

The invention discloses an accurate monitoring system for linear deformation of a loess tunnel portal side upward slope, and relates to the technical field of geotechnical engineering and surveying and mapping. The system comprises a sensing network layer, a data acquisition and transmission layer, a cloud platform and data analysis layer and an application display layer, displacement data of discrete monitoring points are reconstructed into continuous full-field displacement and strain distribution through Kriging interpolation, then a displacement vector field is regarded as a whole to be analyzed, the maximum shear strain field of the displacement vector field is calculated, an abnormal area with the deformation gradient abrupt change is accurately positioned, and the deformation gradient abrupt change accuracy is improved. The abnormal point sets are merged into independent clusters according to spatial proximity and deformation consistency, and the geometric trajectory of a potential slip crack surface or crack is accurately outlined through curve fitting, so that the technical path fundamentally changes the limitation of point-mode monitoring, and can automatically identify a hidden linear failure trend which is difficult to find by naked eyes in a non-contact manner, so as to improve the detection accuracy of the hidden linear failure trend. And refined data support is provided for slope stability evaluation.

The invention relates to the cross technical field of biomedical engineering and psychotherapy, in particular to an automatic control system for classified exposure therapy of phobia based on naked eye 3D. The system comprises an electroencephalogram signal feature extraction module, a heart rate variability feature extraction module, a skin electric response feature extraction module, an eye movement feature extraction module, a physiological load state feature extraction module, an exposure therapy process feature extraction module, a first feature fusion module, a second feature fusion module and a stimulation parameter adaptive control module. The method combines multi-mode biological signal real-time analysis and naked eye 3D stimulation parameter self-adaptive adjustment, and is suitable for clinical psychological treatment mechanisms and psychological health intervention scenes.

The present application concerns the visual identification of materials or documents for tracking or authentication purposes. It describes methods to automatically authenticate an object by comparing some object images with reference images, the object images being characterized by the fact that visual elements used for comparison are non-disturbing for the naked eye. In some described approaches it provides the operator with visible features to locate the area to be imaged. It also proposes ways for real-time implementation enabling user friendly detection using mobile devices like smart phones.

The utility model provides a pile foundation displacement auxiliary detection mechanism for building pile foundations, and relates to the technical field of building pile foundations, the pile foundation displacement auxiliary detection mechanism comprises a support sleeve, a vertical plate and a detection plate, the lower end of the support sleeve is provided with a pointed end, the lower part of the support sleeve is movably connected with a connecting cylinder, and through the arrangement of the connecting cylinder and a base plate, during detection, the vertical plate is fixed on the base plate. The pointed end or the base plate can be selected to be placed according to the detection environment, when the detection environment is soft ground, the pointed end can be directly inserted, and when the detection environment is hard ground, the connecting cylinder can be arranged at the lower end of the supporting sleeve in a threaded and sleeving mode; the inclined angle between the connecting cylinder and the base plate is adjusted to ensure that the installed supporting sleeve is in a vertical state, the included angle between the vertical plate and the detection plate can be directly observed with naked eyes through the arrangement of the vertical plate and the detection plate, then the included angle between the vertical plate and the detection plate is measured through the angle measuring instrument, operation is convenient and fast, and the detection efficiency is improved. Time and labor are saved, and the influence of manual calculation errors is avoided.

The invention discloses a vision correction method based on VR eyeball following movement, and relates to the field of vision and vision correction, in particular to a method for correcting vision through eyeball following movement of a human body based on a VR technology, a glasses tool, corollary equipment and an application method. Comprising the steps of training acquisition, training video selection, following judgment, video adjustment and the like, the following condition of the eyeball can be evaluated more accurately by calculating the angle difference and the eyeball movement following degree, and the problems that misjudgment possibly exists in a traditional method and the training effect is poor due to the fact that the eyeball cannot follow are solved. According to the technology, the parameters of the training video can be dynamically adjusted according to real-time feedback of the eyeball following degree, and the vision correction effect is improved; by means of the VR technology, tools, equipment and other methods, eyeballs move along with the VR technology, tools, equipment and the like, and the vision of people is improved and corrected; therefore, extraocular muscles are trained to drive eyeballs to move, eyeball crystalline lenses move back and forth along with the video, and the effect of improving the naked eye vision is achieved.

The invention discloses a radiotherapy laser positioning system and method, the system comprises at least three laser lamp systems, corresponding optical cameras and a computer control system, the laser lamp systems form cross cursors through two linear emitters installed in a T shape, the cross cursors are respectively arranged on the left side, the right side and the upper side of a treatment device, and a three-dimensional space positioning coordinate system is constructed. The optical camera automatically collects images of the body surface mark points of the patient and the laser cursor, and the computer control system carries out image processing, feature extraction and three-dimensional deviation calculation and feeds back deviation information to the treatment bed or the laser lamp system; and the electric control system drives the fine adjustment mechanism to perform three-degree-of-freedom accurate adjustment of translation, rotation and inclination until the mark point coincides with the cursor. According to the invention, optical automatic identification is adopted to replace manual naked eye positioning, personal errors are eliminated, rapid and automatic correction is realized, and the accuracy and efficiency of radiotherapy positioning are significantly improved.