262 results about "High magnification" patented technology

The utility model discloses a deformable lens, which comprises a first spherical lens group, a second spherical lens group, a first cylindrical lens group, a third spherical lens group, a second cylindrical lens group, a fourth spherical lens group and a twentieth lens which are sequentially arranged from an object space to an image space, the focal lengths of all the lens groups meet the following conditions: 1.4 lt; f (G1-G7) Y / f (G1-G7) Xlt; 1.6); 1lt; 1lt; f (G2) X / f (G1-G4) Xlt; -0.7,-0.7; -2lt;-2lt; f (G3) X / f (G1-G4) Xlt; -1.3,-1.3; 361t; 361t; f (G5) Y / f (G5-G7) Ylt; 24); 0.8 lt; f (G1-G4) X / f (G5-G7) Xlt; 1.2; 1.1 lt; 1.1 lt; f (G1-G4) Y / f (G5-G7) Ylt; and 1.7. The integrated design is adopted, so that the lens is small in size, and meanwhile, the optical performance of high resolution, low respiration, low distortion, 1.5 X high magnification and the like is obtained.

The invention discloses a fan blade surface image acquisition system and acquisition method based on a galvanometer. The wide-angle camera is right opposite to a fan blade, the galvanometer control module is arranged right below the wide-angle camera, the high-magnification camera is arranged on the side of the galvanometer control module in the mode of facing the galvanometer control module, and the optical axis of the high-magnification camera is perpendicular to the optical axis of the wide-angle camera. The wide-angle camera and the high-magnification camera are respectively used for shooting a global surface image and a local surface image of the fan blade, and the wide-angle camera, the high-magnification camera and the galvanometer control module are electrically connected with the image processor. The variable-view camera module is constructed through the two cameras, synchronous acquisition of high-resolution image information of the surface of the fan blade under the large view is realized by combining the two-dimensional galvanometer, the problems of unclear imaging of the blade image, low acquisition efficiency and the like are solved, the health state monitoring and defect repairing of the blade in a wind power project are realized, and the method is suitable for popularization and application. The method has important theoretical significance and application value.

The invention discloses an ultra-thin glass defect detection system and positioning method based on line scanning and phase deflection, and the system comprises a line scanning camera module, a distortionless phase deflection detection module, a high-magnification microscope module and a central processing unit. The line scanning camera module is used for collecting a 2D grayscale image of the ultrathin glass; the distortionless phase deflection technology detection module is used for collecting a surface height map of the ultra-thin glass; the high-magnification microscope module is used for carrying out depth positioning on the interlayer defect judged by the central processing unit; the central processing unit is used for receiving the 2D gray level image and the surface height map, executing an image registration and defect classification algorithm and sending a depth positioning control instruction to the high-magnification microscope module, a multi-module cooperative work detection system is constructed, the detection efficiency and the detection precision are both considered, and data support is provided for production process improvement.

The invention relates to the technical field of virtual image generation, and discloses a virtual image generation method based on machine learning, and the method comprises the steps: obtaining a reference image and text description information, and synthesizing the reference image and the text description information into a data set, thereby obtaining a feature set; according to the feature set, analyzing dominant hue distribution features and judging a style tendency, calculating texture complexity according to a judgment result, and analyzing a cartoonalization degree to obtain a cartoonalization degree quantitative index; and when the quantitative index is greater than a threshold value, setting a character proportion exaggeration coefficient as a high-magnification amplification parameter, and if the quantitative index is less than the threshold value, setting the character proportion exaggeration coefficient as a standard proportion parameter, performing real-time adjustment on the facial expression within a preset dynamic expression amplitude range according to the facial control point coordinates, and generating a control instruction. According to the expression change control instruction, synchronously calculating to obtain a coordination parameter; and performing dynamic rendering adjustment on the clothes according to the coordination parameters to obtain virtual image generation data. The method can solve the problem that the generation result deviates from the target style.

The invention discloses a three-magnification double-telecentric light path object detection system and method. A detection part is arranged between a light source module and an object space telecentric light path module; the light source module comprises a white light annular LED array light source set and an adjustable grating arranged on one side, and a light uniformizing piece is arranged in the white light annular LED array light source set. Light emitted by the array light source group is homogenized by the built-in light homogenizing sheet and then forms uniform light beams through the adjustable diaphragm, and the uniform light beams are projected to the surface of a detection part; a light path switching mechanism is arranged on one side of the object space telecentric light path module, and the object space telecentric light path module comprises a low-magnification object space light path, a medium-magnification object space light path and a high-magnification object space light path; the light path switching mechanism is used for switching any one of a low-magnification object space light path, a medium-magnification object space light path and a high-magnification object space light path to enable light rays to be projected to the beam splitter prism, ambient light is removed through the beam splitter prism, and the transmitted light rays are transmitted towards an image space telecentric light path to enable the light rays to be projected to the industrial camera for imaging.

The invention relates to a wafer positioning method and device. A global image of a standard wafer can be acquired based on a low-magnification lens, and template images of a plurality of target areas in the global image can be acquired based on a high-magnification lens, so that the low-magnification lens and the high-magnification lens are combined to ensure that the template image has a view field range and positioning precision; secondly, target images of all target areas on the corrected wafer are obtained through a high-magnification lens, the initial center positions of all template images in the corresponding target images are determined, and wafer coarse positioning is carried out to achieve the purposes of reducing the search range and adapting errors; performing wafer fine positioning by determining the target center position of each template image in the corresponding search area so as to solve the problem of image angle deviation, and further improving the matching robustness under a complex attitude; and the offset parameter of the corrected wafer is determined based on the target affine transformation matrix, so that wafer positioning with micron-level precision is realized, and a guarantee can be brought to subsequent process operation of the wafer.

The invention provides a semiconductor device part surface micro defect image preprocessing data processing method and system, and relates to the technical field of data processing, and the method comprises the steps: carrying out the image quality normalization processing of an obtained high-magnification amplification surface original image, and generating a quality enhancement image; performing defect feature selective enhancement processing on the quality enhanced image to generate a feature optimized image; performing three-dimensional shape reconstruction on the feature optimization image to generate surface three-dimensional shape topological data containing height information; on the basis of the surface three-dimensional topography topological data, a topography reference origin is determined at the highest point of a local topography protrusion of the preliminary defect candidate area, and a first feature radiation vector and a second feature radiation vector are generated in a fitting mode from the topography reference origin in the main direction and the normal change gradient direction of the surface texture respectively; according to the invention, precise characterization of micro defects in a high-magnification magnification scene can be realized, and the accuracy and real-time performance of defect detection are guaranteed.

A three-dimensional displacement measuring system for a railway platform comprises a laser, an angle sensor, a high-magnification camera and an LED (light-emitting diode) illuminating lamp which are respectively arranged on a fixed upright post, the target is adhered to the edge of the platform to form a measurement reference surface, and the horizontal distance between the stand column and the target is a preset value; the system establishes a virtual zero point and defines a space rectangular coordinate system XYZ, the X axis is in the longitudinal direction of the platform, the Y axis is perpendicular to the edge of the platform, and the Z axis is vertically upward. The invention provides a non-contact, high-precision and low-power-consumption railway platform three-dimensional displacement measurement method, which comprises the following steps of: performing periodic laser scanning and image acquisition on a target adhered to the edge of a platform by utilizing a vision measurement system formed by double lasers and a high-magnification camera and combining feedback information of an angle sensor; and the relative displacement of the X axis, the Y axis and the Z axis in the space is inversely calculated through a geometric model. The method can automatically complete the whole-process operation of zero calibration, photographing, identification, calculation, storage and the like, and meets the actual requirements of long-term structure monitoring of the railway platform.

The invention discloses a preparation method of a high-rate wide-temperature-range regenerated graphite negative electrode material, and belongs to the technical field of lithium ion battery recovery. The invention provides a preparation method of a high-magnification wide-temperature-range regenerated graphite negative electrode material, which combines a multi-section high-temperature synergistic treatment means and a lithium-rich catalytic surface modification technology, realizes impurity removal of a waste graphite negative electrode under the condition of lower energy consumption, and realizes effective repair of a graphite crystal structure. According to the method, through the synergistic effect of ultrahigh-temperature gasification and the reactive atmosphere, trace metal impurities which are most difficult to remove and fluorine-containing compounds with thermal stability are almost thoroughly removed, and the purity of the regenerated graphite is improved to be close to the level of a primary material (the purity gt is 99.9%); and a lithium-rich catalytic surface modification technology is adopted, so that the graphite surface can be stabilized, and the rate capability and low-temperature performance of the material are improved. The graphitization degree (gt; 95%) of the material is remarkably improved through the in-situ defect repairing effect driven by ultrahigh temperature, and the highly-ordered layered crystal structure and the excellent conductive network of the material are recovered.

The present invention discloses a telecentric imaging combined with Scheimpflug projection three-dimensional microscopic measurement system and a joint calibration method, which establish a Scheimpflug projection model, a Scheimpflug distortion model and a telecentric imaging model; capture and preprocess the target attitude images of the calibration plate, perform the phase unwrapping of the center of the telecentric camera and the center mapping of the projector, estimate the internal parameter intrinsic matrix, the external parameter matrix and the distortion coefficient of the projector, correct the projector distortion and the Scheimpflug angle; optimize the error of the external parameter matrix of the projector; align the three-dimensional coordinates of the center of the calibration plate to the coordinate system of the projector, and calibrate the projection matrix of the telecentric imaging model; perform the camera-projector joint calibration to realize the calibration of the three-dimensional microscopic measurement system with high precision. The present invention can solve the problem of limited depth of field under small field of view and high magnification, overcome the reconstruction error caused by defocus of the projection and imaging branches, and increase the dynamic measurement range and accuracy.

The invention discloses a hierarchical optimization multi-instance learning method for digital pathological section brain tumor classification. The hierarchical optimization multi-instance learning method comprises the following steps: extracting and aggregating multi-instance features through alternate training of a feature encoder and an aggregator; a region of interest is automatically searched in a low-magnification image, and then feature extraction and classification are performed on a high-magnification region of interest. According to the method, the region-of-interest is detected by using low magnification, and then the tumor category is comprehensively judged in multiple magnification near the region-of-interest in stages. More importantly, in a model training link, a feature extractor is trained by utilizing a pseudo tag of patch in a region of interest, so that features are better extracted for a specific task and a data set. In order to reduce the noise of the false label, the patent provides a label correction mechanism to ensure the purity of the false label. In general, the HOMIL combines low-magnification tissue structure characteristics and high-magnification cell characteristics, comprehensively predicts brain tumors, and greatly reduces the model reasoning time.

The invention belongs to the technical field of wafer positioning, and discloses a wafer accurate positioning method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining viewpoint images of different positions in a target wafer through employing a spiral collection method of a high-magnification objective lens, carrying out the image splicing of the obtained viewpoint images when each viewpoint image is obtained, and obtaining a target wafer image; the method comprises the steps of splicing viewpoint images of a wafer, carrying out mark point positioning on the spliced viewpoint images through a template matching method to obtain at least two spliced images containing preset mark points, calculating an angle offset according to position coordinates of the preset mark points to carry out angle correction, and then calculating the position offset of the wafer after angle correction to obtain an accurately positioned target wafer. The positioning precision is improved by utilizing the high-resolution characteristic of the high-magnification objective lens, the view field range of preset mark point search is expanded by utilizing the spiral multi-view image acquisition method, the objective lens does not need to be switched, the hardware of a visual imaging system is simplified, and the hardware cost of a positioning device is reduced.

The invention belongs to the technical field of intelligent optimization algorithm and new energy high-rate charging cross fusion, and provides a new energy vehicle high-rate charging pile task allocation method based on an ant colony algorithm. The method comprises the following steps: S1, pre-searching and filtering high-magnification charging piles of which the danger probability is greater than a threshold value to form a candidate set; s2, defining a high-magnification charging task set and a high-magnification charging pile set by adopting a graph model; s3, constructing a comprehensive cost function, and determining a weight coefficient of the comprehensive cost function; s4, the high-magnification charging pile carries out multiple rounds of searching; s5, performing local search optimization on the optimal solution obtained by each ant; and S6, matching optimization is carried out, and distribution is completed. According to the method, the problems of safety and efficiency in a traditional method are effectively solved by preprocessing and filtering the charging piles with too high danger probability, applying a multi-round search strategy, simulating pruning operation and applying a local optimization algorithm.

The invention relates to the field of digital pathology, and provides a digital slice quality control method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a highest magnification tile of a digital slice to be subjected to quality control; based on a trained pathological defect segmentation model, carrying out pathological defect identification and segmentation on the highest-magnification tile to obtain a highest-magnification mask graph; performing pixel-level statistics on the highest-magnification mask image to obtain a single-tile quality control result, and summarizing the single-tile quality control result to obtain a global quality control result of the digital slice; and based on the highest multiplying power mask graph, reconstructing a pyramid mask graph containing multiple multiplying power hierarchies by adopting a plurality of parallel processes, and performing rechecking based on the global quality control result and the pyramid mask graph. According to the digital slice quality control method and device, the electronic equipment and the storage medium provided by the invention, the efficiency bottleneck problem of the quality control process is effectively solved through the technical innovation of reconstructing the pyramid mask graph by the parallel process.

Disclosed is a digital slide microscopic scanning apparatus and a slide microscopic scanning method. The digital slide microscopic scanning apparatus has a sample library, a transfer device, and a scanning device. The transfer device is used to transfer slides containing biological microtissues between the sample library and the scanning device. The scanning device has a first camera and a second camera. The first camera scans the slide full-frame at a lower first magnification to obtain a first microscopic image and determines the target area of the slide based on this first microscopic image. The second camera scans this target area at a higher magnification to obtain a second microscopic image. Both the first and second microscopic images are acquired rapidly, and the size of data in the converted first digital file and the second digital file is small.

The invention discloses a continuous optical zoom slit-lamp microscope system and an inspection method and application thereof, and belongs to the technical field of ophthalmology medical equipment. The system is composed of a continuous zooming module, a light source module, a data processing module, a 3D imaging module and an AI identification module. The inspection method comprises the steps of equipment initialization and head position fixation of an inspected person, AI low-magnification (5 *) preliminary screening, adaptive lens high-magnification (40 *) fine observation, dynamic light source adjustment, three-dimensional data acquisition and cloud intelligent diagnosis. The method is applied to examination and intelligent diagnosis of eye diseases such as cataract. The problems that a traditional slit-lamp microscope is discontinuous in zooming, inconvenient to operate, lack of intelligent diagnosis and free of 3D stereoscopic display are solved, and the objective of the invention is to realize simple and convenient equipment operation, continuous examination process, intelligent diagnosis and stereoscopic display, facilitate collective teaching, significantly improve the diagnosis efficiency and accuracy of eye diseases such as cataract and the like, and improve the diagnosis efficiency and accuracy of eye diseases such as cataract and the like. And DICOM standard data cloud sharing and remote consultation are supported.

The invention relates to the technical field of microscopic imaging, and provides a bimodal imaging system, an imaging method, a device and a storage medium, and the method comprises the steps: generating two laser beams as illumination light and reference light respectively; in the light intensity diffraction tomography mode, lighting light is turned on, the electric diaphragm is turned off to block the reference light, the lighting light passes through an imaging objective lens switched into a low-power objective lens in a first path, and a light intensity diffraction tomography image of the sample is obtained; lighting light is turned on in the optical diffraction tomography mode, an electric diaphragm is turned on to enable the reference light to be propagated along a second path, the lighting light passes through an imaging objective lens switched into a high-power objective lens in a first path, and an optical diffraction tomography image of the sample is obtained; bimodal microscopic imaging is realized based on the light intensity diffraction tomography image and the optical diffraction tomography image; the bimodal imaging system disclosed by the invention is integrated in a set of light path system, and unmarked refractive index imaging of global appearance and local characteristics of a sample can be realized by switching different modes under the control of the subsystem, so that bimodal microscopic imaging is realized.

The application discloses a pathological section multi-resolution image reconstruction method and system based on sparse sampling, which uses a low magnification imaging system to acquire a low-resolution image of a pathological section, and uses a high magnification imaging system to sparsely acquire high-resolution image blocks of a small number of representative grids of the pathological section, so as to reduce the number of high magnification imaging, improve the digitization speed and reduce the data storage amount. The high-resolution image blocks of the representative grids are sparsely sampled to supplement the high-resolution prior information lost by the low-resolution image, the information about the source and the manufacturing method of the pathological section is encoded by using a conditional vector, and the prior information of the pathological section lost by the low-resolution image is supplemented, so that the accuracy of the high-resolution image of the multi-resolution reconstruction is improved while the digitization speed of the pathological section is improved and the data storage amount is reduced, and the real-time performance and the accuracy required by the digitization of the pathological section are met.

The load port includes a FOUP configured to accommodate a plurality of substrates in multiple stages, cameras configured to image each of the substrates accommodated in the FOUP and including a low-magnification camera with a wide horizontal angle of view and a high-magnification camera with a narrow horizontal angle of view, and a CPU configured to detect the accommodation state of each of the substrates based on the imaging data acquired from the low-magnification camera and the high-magnification camera, respectively.

The utility model provides a novel partition plate of a high-magnification lead-acid storage battery, and belongs to the technical field of storage batteries. According to the structure, a first plate face and a second plate face are stacked in parallel, an interlayer is arranged between the first plate face and the second plate face, the edge of the interlayer is sealed through a covered edge, and a plurality of transverse sheets arranged at intervals along a transverse path and a plurality of longitudinal sheets arranged at intervals along a longitudinal path are arranged in the interlayer. The upper side and the lower side of the transverse sheet and the upper side and the lower side of the longitudinal sheet are connected with the first plate face and the second plate face respectively, and the outer side of the first plate face and the outer side of the second plate face are each provided with a plurality of transverse pits arranged at intervals along a transverse path and a plurality of longitudinal pits arranged at intervals along a longitudinal path. According to the utility model, a double-layer AGM partition plate structure is constructed, and the sheets which are arranged along the transverse path and the longitudinal path at intervals are additionally arranged in the interlayer, so that the structural strength of the partition plate is enhanced, and higher porosity is ensured. The high-rate lead-acid storage battery is suitable for high-rate lead-acid storage batteries and has longer service life.

The present invention relates to an apparatus, system, and method including a hierarchical deep learning model for analyzing large-scale pathology images in the form of Whole Slide Images (WSI) using a hierarchical deep learning model. More specifically, the invention relates to an apparatus, system, and method including a hierarchical deep learning model that divides a large-scale pathology image, which is a pyramid-shaped whole slide image composed of multiple magnification layers of high-magnification pathology images and low-magnification pathology images, into patches, thereby enabling more accurate analysis by applying the high-magnification pathology images to a segmentation model and generating faster analysis results by applying the low-magnification pathology images to a regression model.

The invention provides aluminum oxide secondary coated high-magnification artificial graphite and a preparation method thereof.The preparation method comprises the steps that after artificial graphite and phenolic resin are subjected to liquid phase coating, carbonization treatment is conducted, and hard carbon primary coated artificial graphite is obtained; and mixing and coating the hard carbon primary coated artificial graphite and aluminum salt, and then carrying out heat treatment to obtain the aluminum oxide secondary coated high-magnification artificial graphite. According to the invention, artificial graphite and phenolic resin are used as raw materials, and are subjected to liquid-phase coating and high-temperature treatment to prepare artificial graphite coated with hard carbon once; and then the hard carbon primary coated artificial graphite and the aluminum salt are mixed and coated, and aluminum oxide secondary coated high-magnification artificial graphite is prepared through high-temperature treatment, so that the magnification performance of the graphite material can be effectively improved, and relatively good cycle performance can be ensured.

The invention relates to a continuous zooming large objective lens system for double depth-of-field fusion. The system is sequentially provided with a large objective lens system, a beam splitting system, a zoom system and an imaging system along a light path, wherein the large objective lens system comprises protective glass, a movable negative lens group (single lens) and a fixed positive lens group (double bonding lens). Continuous zooming is achieved by moving the negative lens group along the optical axis, the focal length range is 240-445 mm, the working distance is adjustable (135-350 mm), and the operation surface observation range is 40-100 mm. According to the system, an apochromatic technology is adopted, H-K9L and H-ZF6 optical glass with abnormal dispersion coefficients is selected, and the MTF value is larger than or equal to 0.5 at 35l p / mm under high magnification and is close to the diffraction limit. The invention has the innovation points that the structure (a single lens and a double bonding lens) is simplified, the mechanical compensation zoom design and a large exit pupil diameter (phi 60-71mm) matching beam splitting system are adopted, and the problems of unsmooth zoom curve, complex process and insufficient exit pupil matching in the prior art are solved.

The invention relates to the technical field of scanning electron microscopes, and discloses a molecular pump damping device for a high-resolution scanning electron microscope, the molecular pump damping device comprises a first damping assembly, the first damping assembly comprises a first connecting structure, a corrugated pipe, a second connecting structure and a plurality of supporting columns, the two ends of the corrugated pipe are respectively connected with the first connecting structure and the second connecting structure, and the first connecting structure is connected with the second connecting structure; the two ends of the supporting column are connected with the first connecting structure and the second connecting structure respectively, and at least part of the supporting column is an elastic section. The first damping assembly is arranged, the first damping assembly is combined with the corrugated pipe and is provided with the elastic section and the supporting column, the elastic section absorbs high-frequency vibration energy through elastic deformation of the elastic section, and the corrugated pipe compensates axial and radial displacement and isolates low-frequency vibration through a flexible structure of the corrugated pipe; vibration transmitted from a molecular pump to a sample chamber of the scanning electron microscope can be dissipated, so that zigzag artifacts of an image are effectively eliminated, and the scanning electron microscope has relatively high imaging resolution and definition under high magnification.

Embodiments of the present application provide a high-magnification coaxial telecentric lens and a camera module. The high-magnification coaxial telecentric lens comprises, in order from the object side to the image side, a first lens group, a light splitting prism, a diaphragm, a second lens group and a third lens group. The first lens group comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The second lens group comprises a sixth lens and a seventh lens. The third lens group comprises an eighth lens and a ninth lens. The light splitting prism is provided with a coaxial light source on one side. The first lens, the third lens, the fifth lens, the sixth lens and the ninth lens all have positive refractive powers. The second lens, the fourth lens, the seventh lens and the eighth lens all have negative refractive powers. The first lens group comprises a first cemented lens. The focal length f J01 of the first cemented lens and the focal length f1 of the first lens group satisfy the relationship: 45 < f J01 / f1 < 55. The high-magnification coaxial telecentric lens achieves the purposes of high magnification, large numerical aperture and high imaging quality.

An ion source is disclosed that comprises a positioning assembly that can position a sprayer with respect to an ion inlet. The ion source includes a first imaging device that can provide a first view of a position of the sprayer with respect to the ion inlet, and a second imaging device that can provide a second, different view of a position of the sprayer with respect to the ion inlet. The second view has a higher magnification than the first view.

The invention discloses a heart rate regulation and control device, method and system based on light-operated otolith oscillation, and relates to the field of heart rate control. The scanning optical tweezers system comprises a laser scanning light path, an imaging light path, an illumination light path and an electric objective table; the laser scanning light path is used for generating a high-speed scanning optical potential well at the otolith of a target living body; the imaging light path comprises a high-magnification inverted objective lens imaging light path and a low-magnification bypass imaging light path which are respectively used for real-time image acquisition of a target living body and heart state monitoring of the target living body; a first illumination light path in the illumination light paths is used for illuminating an imaging view field of a target living body on the electric objective table, and a second illumination light path is used for exciting the target living body to generate a calcium ion fluorescence signal; the electric objective table is used for bearing a target living body, and the position of the target living body is moved through displacement control of the objective table. The heartbeat rhythm can be accurately regulated and controlled.

The application relates to a camera optical lens which is composed of a first prism, a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged in sequence from the object side to the image side; the maximum focal length of the camera optical lens is fA, the image height is IH, the distance between the most object-side lens surface and the most image-side lens surface on the optical axis at the maximum focusing time is Lp, the radii of curvature of the object and image sides of the first prism are Rp1 and Rp2, the radii of curvature of the object and image sides of the fifth lens are R9 and R10, the total optical length is TTL, 1.90 <= fA*IH / TTL <= 2.20; 0.25 <= Lp / TTL <= 0.41; 0.00 <= Rp1 / Rp2 <= 1.11; 3.00 <= (R9+R10) / (R9-R10) <= 30.20. The camera optical lens has the characteristics of long focal length, high magnification and miniaturization.

The invention discloses an electron microscope imaging target accurate movement control method based on visual servo, and belongs to the technical field of electron microscopic imaging and movement control. Comprising the following steps: constructing a target data set in a low-magnification scene, training a fine-tuning target tracking model, and outputting a target center point; performing real-time communication with the electron microscope to obtain low-power image frames, identifying each target by using the ideal model, generating an online target tracking task sequence, and continuously outputting a tracking frame of a current target individual in sequence; according to the pixel error, mapping a calibration coefficient related to multiplying power into a displacement reference quantity to execute PID closed loop, and driving the sample table to move until the target individual meets the center; and switching to high magnification to complete observation and returning to low magnification to complete multi-target observation one by one. According to the method, re-search and re-calibration after rate switching are avoided through the process of'retention-rollback recovery-relative displacement inheritance ', the robustness is improved in combination with thread decoupling and adaptive parameters, multi-target rapid, accurate and stable high-power observation can be achieved in a millisecond-level control period, and the method is suitable for large-scale popularization and application. The switching time delay is obviously shortened, the invalid range and the manual burden are reduced, and the experiment verifies that the method has effectiveness and superiority.

The utility model relates to the field of camera modules, and discloses a high magnification camera module with a built-in ultra-thin prism, which comprises a support, an anti-shake module, a lens module and a prism, the anti-shake module, the lens module and the prism are fixed on the prism, the prism is trapezoidal and comprises at least two reflecting surfaces, and the anti-shake module and the lens module are positioned on the same side of the prism and are respectively opposite to one reflecting surface. Light entering the lens module enters the anti-shake module through at least two times of reflection through the prism. According to the telephoto lens provided by the utility model, a photosensitive chip with a larger size can be placed and a longer distance can be shot at the same time.