31 results about "High magnification" patented technology

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 application discloses a teleconverter lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens, a twelfth lens, a thirteenth lens, a fourteenth lens and a fifteenth lens arranged in sequence along an optical axis from an object plane to an image plane, wherein the first lens and the second lens are cemented, the third lens and the fourth lens are cemented, the seventh lens and the eighth lens are cemented, the tenth lens and the eleventh lens are cemented, and the thirteenth lens and the fourteenth lens are cemented. The teleconverter lens provided by the embodiment of the application realizes multiple performances such as 3.36 times high magnification, F2.63 large aperture and distortion lower than 0.6% through the structural design of 15 lenses and the matching of the focal power of each lens, and meanwhile, the total length of the teleconverter lens is controlled within 105 mm, so that the telephoto experience with high performance and portability is provided for users.

The application discloses a kind of micro device end face feature visual guidance high-precision alignment system and method, including six degrees of freedom precision motion platform, fixed bearing platform, top zoom vision imaging unit, with the side visual imaging unit of top unit optical axis orthogonality, and the intervention prism reflection module below the alignment gap.The alignment method includes: using side and top low-power field of view to carry out orthogonal coarse alignment, correct spatial attitude deviation;Control prism intervention, top imaging unit switches to high magnification mode, with prism ridge line as common measurement reference, extract the image coordinates of each corresponding feature point in fixed side and motion side end face feature;Based on the matching mapping relationship of feature point, calculate the coordinate deviation of each corresponding feature point pair in height mapping direction and horizontal direction, drive motion side device to carry out pose compensation, until the spatial coordinates of all corresponding feature point pairs coincide;After prism retreat, use side visual monitoring gap and complete physical docking.

This invention discloses a fully automated microscopic scanning and result judgment system for TAP detection. This invention relates to the field of biomedical engineering technology within the bio-industry. The central control and processing unit runs TAP feature analysis logic, which is configured to: identify suspected TAP agglomerates under low magnification using color threshold segmentation; perform multi-focal plane Z-axis tomography on the suspected TAP agglomerate regions under high magnification; generate a clear panoramic image of the TAP agglomerates using a multi-focal plane image fusion algorithm; and extract the morphological and textural features of the agglomerates from the fused image. This invention addresses the three-dimensional stacking characteristics of TAP agglomerates, unlike existing technologies that treat them as defects and discard them. Instead, it creatively introduces Z-axis tomography and multi-focal plane fusion technology, transforming "blurriness" into "features," thus fully acquiring the spatial morphological information of the TAP agglomerates and significantly improving detection sensitivity.

This invention relates to the field of bridge construction technology, specifically disclosing a bridge displacement detection device and method, including an installation mechanism, a connection mechanism, a signal amplification mechanism, a reading mechanism, a recording mechanism, and a transmission component. Through anchoring at the installation base, the bridge displacement drives the trapezoidal slider and rack to move. The signal amplification mechanism uses a gear set to accelerate the transmission and drive the pointer to read the value in real time on the suspended ring. Simultaneously, the transmission component drives a counting roller covered with pressure-sensitive recording paper through a worm gear reduction, and an elastic pressure needle engraves the physical displacement curve. This application can achieve high-magnification purely mechanical amplification of minute displacements, is interference-resistant without a power supply, and integrates real-time monitoring and historical trajectory recording functions, effectively solving the problems of easy failure of electronic sensors, difficulty in intuitively observing minute deformations, and lack of physical recording methods in construction site environments.

An embodiment provides a method comprising the steps of: receiving an activation signal for accessing data in at least one memory; accessing a data structure in the at least one memory according to the reception of the activation signal, wherein the data structure includes a diagnostic image; loading the diagnostic image from the at least one memory; generating, by at least one processor, at least one response with respect to the diagnostic image by using at least one artificial intelligence model using the diagnostic image as an input, wherein the at least one artificial intelligence model is pre-trained to perform image analysis on the basis of a feature representation for a causal dependency relationship between a low-magnification feature and a high-magnification feature of the diagnostic image; and inputting (ingesting) the at least one response to at least one subsequent processing component.

This invention provides a method and system for analyzing the solidification effect of marine dredged mud based on SEM, including acquiring low-, medium-, and high-magnification SEM images of the solidified body at different stages and corresponding EDS data; for the medium-magnification SEM image, identifying pores based on grayscale thresholds and calculating the fractal dimension of the image structure; for the high-magnification SEM image combined with EDS line scan data, determining the width of the interface transition zone by the zero point of the second derivative of the concentration of key elements; dividing multiple sub-regions using low-magnification EDS area scan data, calculating the average concentration of key elements in each sub-region, and using the reciprocal of the concentration variance of each region as the macroscopic uniformity index; and calculating a comprehensive evaluation index based on the reciprocal of the fractal dimension, the reciprocal of the transition zone width, and the macroscopic uniformity index.

The application discloses a high-magnification displacement amplification driver of an SMA artificial muscle based on a parallelogram configuration and relates to the technical field of drivers.The driver comprises a connecting rod, bolts are arranged through the upper and lower ends of the connecting rod, PCB boards are arranged on the surfaces of the left and right bolts, nuts are threadedly connected to the surfaces of the bolts and located on the surfaces of the PCB boards, through holes are formed in the surfaces of the PCB boards, and SMA wires are connected through the inner cavities of the through holes.The displacement amplification mechanism effectively solves the contradiction between compactness, amplification multiple and mechanical complexity of a traditional amplification mechanism, compared with the structure form and limitations of common displacement amplification mechanisms, the differential amplification mechanism based on the parallelogram frame embeds the triangular amplification principle into the parallelogram hinge structure through a geometric optimization strategy, effectively avoids the volume expansion problem caused by the geometric size limitation of traditional mechanisms, and realizes high-gain displacement amplification in a compact space.

The application relates to the technical field of optical systems, and provides a high-magnification line scanning imaging system and an imaging device, which solve the problem of small depth of field of an existing high-magnification line scanning imaging system, and comprise object surface one and object surface two, a first lens group arranged in sequence from the object side to the image side along the optical axis, the optical power of the first lens group being positive; a diaphragm; a second lens group, the optical power of the second lens group being negative, and a light splitting prism; the object surface one is imaged on the image surface one after sequentially passing through the first lens group, the diaphragm, the second lens group and the light splitting prism and being subjected to defocusing treatment; and the object surface two is imaged on the image surface two after sequentially passing through the first lens group, the diaphragm, the second lens group and the light splitting prism and being subjected to defocusing treatment. The application can expand the depth of field without assembling other devices, reasonably distribute the optical power, better balance the aberration, realize high magnification and high resolution, and guarantee clear imaging in a large range.

The application provides a detection system and method for early extremely weak flame imaging positioning, which comprises a horizontal light path branch, a vertical light path branch and a video circuit processing board; the horizontal light path branch is coaxially connected with a first focusing lens, a light splitting prism, an ultraviolet filter, a second focusing lens, an image intensifier and a first image detector in sequence along a horizontal direction; the vertical light path branch is connected with a third focusing lens and a second image detector in sequence along a direction perpendicular to the horizontal light path and a light splitting surface of the light splitting prism; the video circuit processing board is provided with a video circuit processing board, which is electrically connected with the first image detector and the second image detector respectively to receive image electric signals output by the two detectors. The system can image and detect early extremely weak flames at a very long distance, can amplify the spectrum of the flame alone at a high magnification, and cannot amplify the spectrum of other background objects, so that the characteristics of the flame are highlighted.

The application provides a high-magnification face super-resolution method based on enhanced Mamba and adversarial learning, and belongs to the technical field of image processing. The method comprises the following steps: acquiring and constructing a training data set; performing a horizontal flip operation on low-resolution-high-resolution paired image samples and randomly performing 90-degree, 180-degree and 270-degree rotation transformation; pre-processing the input low-resolution image; acquiring and constructing the training data set; performing shallow feature extraction on the input by using a convolution layer; performing deep feature extraction on the image by using a global semantic modeling and local region focusing strategy; fusing the deep features and the shallow features by using a residual method; performing up-sampling processing on the features, performing an inverse normalization operation on the generated face image, and outputting a final high-resolution face reconstruction result; constructing a generative adversarial learning training structure; and gradually optimizing the training model parameters to obtain a good training result. The application effectively improves the reconstruction quality of the face super-resolution.

The optical system disclosed in the embodiment of the invention includes first to third lens groups arranged along an optical axis from an object side toward a sensor side, wherein the first lens group and the third lens group have negative power, the second lens group has positive power, a position of the first lens group is fixed, the second and third lens groups are movable in the optical axis direction, the optical system having the first to third lens groups has operation modes having different magnifications according to the movement of at least one of the second and third lens groups, at least one of the second and third lens groups has a lens having the thickest center thickness among the lenses, the optical axis distance between a surface of the lenses of the first lens group closest to the object and an imaging surface of an image sensor is TTL, and a size of the entrance pupil diameter of the optical system at the highest magnification in the operation mode is EPD3, and the following Equation may satisfy: 2<TTL / EPD3<7.

This invention discloses a settlement monitoring device for building foundations, relating to the field of foundation monitoring technology. It includes a mounting plate assembly with a height adjustment component, a settlement component, a numerical amplification component, and a snap-fit ​​component on its top surface. The mounting plate assembly includes a base plate and four threaded rods. The bottom of the height adjustment component is connected to the top surface of the base plate, and the height adjustment component is used to adjust the vertical height of the settlement component. The top of the height adjustment component is connected to the bottom of the settlement component, and the outer periphery of the settlement component is connected to the bottom of the numerical amplification component. The numerical amplification component is used to convert the settlement value of the settlement component into a visual value for display. This invention incorporates an amplification structure that can achieve ultra-high magnification of displacement, adapting to the monitoring requirements of high precision and minimal settlement, making minute settlement displacements clearer. Furthermore, the simultaneous operation of two amplification structures in the device reduces errors and improves overall measurement accuracy.

This invention proposes a zoom projection optical system and projection device. Based on the field of optical imaging technology, the zoom projection optical system includes a first lens group with negative optical power, a second lens group with positive optical power, a third lens group with positive optical power, a fourth lens group with positive optical power, a fifth lens group with positive optical power, a sixth lens group with positive optical power, a galvanometer, a prism, a protective glass, and a light-emitting chip. The second, third, fourth, and fifth lens groups are movable along the optical axis to zoom the zoom projection optical system. The first lens group moves along the optical axis to focus the zoom projection optical system. The sixth lens group is fixed. The technical solution provided by this invention, by employing a six-element structure and rationally setting the optical power and materials of the fourteen lenses, achieves a zoom projection optical system with high magnification, large aperture, good thermal stability, and high image quality.

The present invention relates to a method and system for displaying images of living cells linked by magnification. By displaying a low-magnification full slide image, receiving a designation input for a specific area within the low-magnification full slide image, and displaying a high-magnification image corresponding to the designated area, the invention improves diagnostic efficiency by allowing a user to immediately view a high-magnification image of a cell of interest when designating the cell within the low-magnification image.

The invention discloses a WSI image quantitative evaluation system based on cross-scale feature collaboration and multi-dimensional quality factor fusion, belongs to the technical field of digital pathological image analysis, and aims at solving the problems that an existing evaluation method is single in dimension and insufficient in robustness and efficiency. The system obtains a WSI image through scanning, randomly samples a tissue area under a basic amplification factor, screens out an unclear area by adopting a definition detection method, and feeds back a re-scanning instruction. And for the clear area, synchronously extracting image slices with different objective lens magnifications under the same hierarchy of the pyramid structure, and constructing a multi-magnification slice data set. And carrying out cell identification and counting based on high-magnification slices, carrying out bubble area detection and staining defect identification based on low-magnification slices, and respectively generating cell number, slice integrity and staining quality sub-item scores. And finally, performing weighted fusion on each item score to obtain a slice comprehensive quality score, and realizing objective quantitative evaluation on the WSI image quality.

The present invention provides a variable magnification optical system that achieves a high magnification ratio while effectively correcting aberrations across the entire magnification range, and an imaging device equipped with this variable magnification optical system. [Solution] The variable magnification optical system consists of a first lens group having positive refractive power, an intermediate group, and a subsequent group, arranged in order from the object side to the image side. The intermediate group consists of three or fewer lens groups, including the M1 lens group having negative refractive power, which is positioned closest to the object, and the Mr lens group having negative refractive power, which is positioned closest to the image. The R1 lens group having positive refractive power is positioned closest to the object in the subsequent group. The first lens group remains stationary during magnification. When the focal length of the M1 lens group is fM1 and the focal length of the first lens group is f1, the variable magnification optical system satisfies the condition expressed as 0.05 < (-fM1) / f1 < 0.8.

A lens assembly (10), a camera module (110), and an electronic device (100), relating to the technical field of cameras. The lens assembly (10) may comprise a first lens unit (101) and a second lens unit (102) arranged along an optical axis from an object side to an image side, and the second lens unit (102) can move towards the image side along the optical axis, so as to achieve the switching of the lens assembly (10) between an infinity state and a macro state, thus allowing the lens assembly (10) to achieve both telephoto and macro functions. Moreover, by reasonably allocating the focal power of the first lens unit (101) and the focal power of the second lens unit (102) and the focal power of a first lens (11) closest to the object side, a light inlet amount is increased, so that the lens assembly has a large aperture characteristic, achieving a long-focus telephoto function and a macro function of high definition and high magnification, and ensuring high-quality imaging for a long-distance photography scene and high-definition imaging for a close-up photography scene.

To provide a high-magnification zoom lens with high optical performance. [Solution] A zoom lens comprising a first lens group with positive refractive power, a second lens group with negative refractive power, a third lens group with positive refractive power, and a fourth lens group with positive refractive power, arranged in order from the object side to the image side, wherein the distance between adjacent lens groups changes during zooming, the first lens group remains stationary with respect to the image plane during zooming from the wide-angle end to the telephoto end, the fourth lens group has at least three lenses, and when the lateral magnification at the wide-angle end of the second lens group is β2w and the lateral magnification at the wide-angle end of the third lens group is β3w, a predetermined conditional equation is satisfied.

The application discloses a high-magnification macro lens, which comprises a first lens group G1, a second lens group G2 with positive refractive power and a third lens group G3 with negative refractive power from the object side to the image plane side in sequence; when the object is from infinity to a close distance and is focused, the first lens group G1 is fixed, the second lens group G2 is moved from the image side to the object side, and the third lens group G3 is moved in cooperation with the second lens group G2, thereby playing a role of assisting focusing. The application is convenient and fast to use, can realize good imaging from infinity to 2 times of photographic magnification, and realizes a macro lens with small size, low cost and high performance.

This invention provides a method and apparatus for processing video images, comprising: responding to a zoom command input by a user based on a zoom operation on an interactive interface; displaying a portion of the video image on the interactive interface based on the zoom level corresponding to the zoom command; wherein the portion of the content is a part of the zoomed-in video image; generating a navigation window on the interactive interface, displaying the zoom level corresponding to the zoom command in the navigation window; if the zoom level is greater than or equal to a preset zoom level threshold, displaying a positioning marker within the navigation window; wherein the zoom level threshold is greater than 1, the size of the positioning marker is used to represent the zoom level, and the position of the positioning marker is used to represent the position of the portion of the video image within the total content of the video image. In this method, the navigation window and positioning marker can assist the user in quickly locating the position of the portion of the video image displayed on the interactive interface at high zoom levels.

The application discloses a cell retrieval method and device and a storage medium, relates to the technical field of multi-modal registration, and comprises the following steps: constructing a low-magnification double-modal feature template based on a low-magnification image of a pathological section and corresponding spatial transcriptome data; determining a high-magnification calibration image of a high-magnification image of the pathological section after cross-domain calibration, combining the spatial transcriptome data to construct high-magnification double-modal features; performing self-adaptive position alignment on the high-magnification double-modal features and the low-magnification double-modal feature template to obtain aligned low-high-magnification double-modal features and corresponding spatial coordinate mapping relationships, and constructing a cell retrieval feature library; receiving a user retrieval request, performing self-adaptive matching in the cell retrieval feature library, and obtaining matched cell retrieval results, so that the technical problem that alignment deviation cannot realize accurate cell retrieval due to the neglect of molecular information in the prior art is solved, and the accuracy of cell retrieval results is improved.

To provide a compact zoom lens that offers high magnification when changing from the wide-angle end to the telephoto end. [Solution] A zoom lens comprising a first lens group with negative refractive power, a second lens group with positive refractive power, and a third lens group with negative refractive power, arranged in order from the object side to the image side, wherein the distance between adjacent lens groups changes when zooming is performed, the first to third lens groups each have one or more aspherical lenses made of resin material, the first lens group remains stationary with respect to the image plane when zooming from the wide-angle end to the telephoto end, and satisfying a predetermined condition when the distance on the optical axis from the object-side lens surface of the lens placed closest to the object in the first lens group to the image plane is TL, the maximum image height is imgH, the focal length of the first lens group is f1, and the focal length of the third lens group is f3.

The application discloses a kind of based on digital pathology section local high-precision magnifying glass system, comprising: main view module, for loading and display digital pathology whole section image;Magnifying glass module, including nested sub-viewport, for specified local area in the current field of view of the main view module is carried out high-power display;Wherein, the magnifying glass module is shared with the main view module by cloning mechanism Image resources;Display area layer, which is overlaid on the display interface of the main view module, is used to visually mark the corresponding position of the local area in the main view module;Control handle layer, integrated in the display area layer, is used to receive user input to interactively adjust the local area, realize local magnification based on original high-resolution data;Non-repeated loading of image resources significantly reduces server and network pressure;Main view and local view are highly consistent, to avoid misdiagnosis.

A method of automated control of a microscope in cryogenic electron microscopy (cryo-EM), wherein the microscope is configured to collect high-magnification micrographs of particles suspended in vitreous ice. Such particles are found in grid squares, and a square contains holes from which high-magnification micrographs are imaged. The method is carried out during an active data collection session, leveraging a pipeline that comprises a set of models. The pipeline evaluates a set of collection locations to determine whether to continue collection at a current grid / square or instead at a new grid / square. The evaluation is based on a set of one or more quality scores derived from one or more pretrained models and machine learning-based active learning. Based on the determination, control information is provided to automatically control the microscope to move to a next target for data collection.

The application provides an image processing method, device, equipment, medium and product, and relates to the technical field of image processing. The method is characterized in that: an intermediate resolution image is obtained by interpolating an original image based on a preset magnification, and then edge enhancement processing is performed on the intermediate resolution image. The method effectively improves the problem that the traditional interpolation method is poor in restoring image texture and edges and low in definition, avoids visual defects such as edge discontinuity, blocking and blurring caused by one-step interpolation to a target resolution, and performs end interpolation processing to obtain a target image when the resolution of the edge enhanced image meets a preset resolution condition. The method can effectively maintain the detail features of the original image in a high magnification scenario, improve the overall definition, and make the image edge transition natural.

This invention discloses a two-dimensional nanoscale high-precision alignment method and apparatus based on inclined plane magnification, relating to the field of photolithography alignment technology. The method includes: focusing a camera onto different grating planes using a focusing device; arranging integrated alignment marks on the grating planes and adjusting the angle between grating lines; a micro-moving platform driving the mask grating to translate, the camera acquiring a focal image and transmitting it to a computer control platform; the computer control platform generating a fused depth-of-field image; and the computer control platform calculating the actual displacement and outputting control signals to the micro-moving platform to adjust the position of the mask grating, thus completing the alignment. The apparatus includes a computer control platform, a dual-imaging, different-focal-plane alignment system, and an optimized alignment system based on a digital grating. This invention, through innovative design of the grating geometry and a combination of hardware and software algorithm processing, can systematically solve the problems of feature loss in small field of view, multi-dimensional displacement decoupling, and depth-of-field conflicts caused by high-magnification imaging.