49results about How to "Guaranteed image quality" patented technology

The application discloses a kind of autonomous ultrasonic robot multimode drag control method and device.The method comprises: obtaining real-time ultrasound image and the force data value of mechanical arm end;Determine whether the pixel value of ROI region of the ultrasound image of continuous preset frame number is greater than preset pixel threshold value: if yes, according to force data value and first initial control parameter, it is calculated to obtain the target displacement amount in X axis direction and Y axis direction, simultaneously, according to force data value, preset expected force and second initial control parameter, it is calculated to obtain the target displacement amount in Z axis direction;Tool coordinate system under target displacement amount is converted into world coordinate system under target displacement amount;Zero force control is implemented in the horizontal direction of probe contact surface, and constant force control is implemented in the vertical direction of probe contact surface, until probe moves to target position.The method improves the operation flexibility and scanning safety by the synergistic effect of zero force control and constant force control.

The invention provides an F-P spectral imaging system and method, and belongs to the technical field of spectral component measurement, and the system comprises a front lens which is used for collecting light energy and converting the light energy into emergent light meeting the limitation of the clear aperture of an F-P interferometer; the annular band optical filter comprises a central area and a plurality of concentric annular areas surrounding the central area, the bandwidth of each area is the same as the free spectral range of the F-P interferometer, and the annular band optical filter is used for eliminating level aliasing in emergent light of the front lens; the F-P interferometer is used for carrying out wavelength selection on emergent light of the annular band optical filter and outputting an interference field; the imaging mirror is used for projecting the interference field to the detector; and the detector is used for converting the projected optical signal into a digital electric signal. The F-P spectral imaging system which can maintain high spectral resolution and also can realize wide spectrum coverage is constructed by introducing the annular band optical filter which is accurately matched with the FSR of the F-P interferometer.

The invention discloses a method and a device based on Interlanceamp. The invention discloses an infrared detector driving imaging method in a Binning mode. According to the method, a pair of complete image data is generated, a detector needs to carry out integration operation twice, and effective data of different subframes can be generated after each time of integration is completed. Effective data generated by the first integration is a first sub-frame, and the sub-frame is all even-numbered lines of the complete image. Effective data generated after the second integration time is completed are second subframes, and the subframes are all odd-numbered lines of the complete image. According to the method, image data of a first sub-frame and image data of a second sub-frame output by an infrared detector are cached respectively, odd-even row sorting, time sequence recombination processing and the like are carried out on cached effective image data of the first sub-frame and the second sub-frame, and finally a complete image with the size of 640 * 512 is obtained. And the image is finally output through an image format of a camera link interface protocol.

The application provides a lightweight variable bit rate multi-view image compression method and system, and relates to the technical field of image compression. The method comprises: downsampling, feature extraction and feature scaling of a single-view image to obtain a latent representation corresponding to a target bit rate; quantization and lossless entropy coding of the latent representation to obtain a final compressed bit stream; subsequent lossless entropy decoding and inverse scaling to restore the latent representation; feature fusion and upsampling of the restored latent representations of different views to generate a reconstructed compressed image. The model comprises a main encoder, a feature scaling module, a quantization module, an autoregressive entropy model, an arithmetic encoder, an arithmetic decoder, a feature inverse scaling module and a decoder. The application can efficiently compress image data, reduce computational complexity and storage space occupation while preserving image details and quality, thereby providing faster speed and lower bandwidth requirement for image transmission and storage.

The invention discloses a zoom projection optical system, and relates to the technical field of projection systems.The zoom projection optical system is provided with an object side and an image side which are correspondingly arranged in the optical axis direction, and the zoom projection optical system comprises a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group and a light-emitting chip which are sequentially arranged from the object side to the image side; the first lens group, the second lens group, the third lens group and the fourth lens group are movably arranged along the optical axis direction, the second lens group, the third lens group and the fourth lens group are used for zooming, and the first lens group is used for focusing. Through the arrangement, the imaging quality of the zoom projection optical system can be ensured, the characteristics of small size and low cost of the zoom projection optical system are met, the zoom projection optical system has excellent thermal stability, the thermal virtual focus phenomenon of the whole zoom projection optical system in a high-temperature state is reduced, and the service life of the zoom projection optical system is prolonged. The zoom projection optical system can still keep good imaging performance on the premise that the temperature deviation is not larger than 20 DEG C.

The embodiment of the invention provides a frozen screen detection method, an electronic device, a storage medium and a program product, for at least two frame images continuously output to a display screen, according to the least significant bit of each frame image under a preset color channel, a to-be-detected image block of the frame image is determined, and according to the to-be-detected image block of the frame image and a preset watermark block, the to-be-detected image block of the frame image is detected. The watermark blocks carried by the frame images are determined, and then whether the display screen is frozen or not is determined according to the change conditions of the watermark blocks carried by at least two frame images. The to-be-detected image block is inserted into the least significant bit of the preset color channel, so that the influence on the frame image is small, and the image quality of the frame image is ensured while the frozen screen detection is realized.

The application discloses a kind of photovoltaic panel intelligent cleaning trolley stain identification and accurate cleaning method, belong to photovoltaic operation and maintenance technical field, including cleaning trolley initialization and moves to photovoltaic panel starting detection position, completes attitude calibration and detection system preheating, the present application is by fusing multispectral image acquisition, deep learning identification model and self-adapting cleaning control strategy, constructs a set of set stain identification, classification determination, path planning and accurate cleaning in one integrated intelligent cleaning method, realizes the high-precision identification of photovoltaic panel surface stain and differentiates accurate processing, significantly improves cleaning effect and energy utilization efficiency;Stain is divided into mild, moderate, severe three grades, which provides a scientific basis for subsequent differentiated cleaning;Overall identification process is fast, stable, supports real-time processing, which greatly improves the intelligent decision-making ability of cleaning system.

The invention belongs to the technical field of magnetic resonance coils, and particularly relates to an integrated bilateral ankle joint magnetic resonance coil integrating an ankle fixing function, the integrated bilateral ankle joint magnetic resonance coil comprises a magnetic resonance coil and a coil plate, and the magnetic resonance coil is fixedly connected in the coil plate; a pedal plate is connected to the coil plate in a sliding manner; two sides of the coil plate are respectively connected with a width adjusting plate in a sliding manner; two fixing frames are fixedly connected to the pedal plate; the fixing frame is rotationally connected with a double-thread rod, and two threads on the double-thread rod are arranged to be opposite. According to the size of the foot of a currently detected patient, a doctor adaptively rotates a double-threaded rod, the double-threaded rod rotates to synchronously drive two width adjusting plates to be close to or far away from each other through two length adjusting assemblies, after adjustment is completed, the positions of the two width adjusting plates are fixed to a coil plate, the two width adjusting plates clamp and fix the foot of the patient, and the width adjusting plates are fixed to the coil plate. The width of feet of different patients is adapted; the position of the pedal plate is also adjusted through the length adjusting assembly, and the device adapts to the thicknesses of feet of different patients.

The utility model provides an optical assembly and an endoscope, the optical assembly comprises a lens cone, the lens cone is provided with a mounting cavity penetrating through the lens cone, and the mounting cavity is of a columnar structure extending along a preset direction; the lenses are sequentially arranged in the mounting cavity at intervals in the preset direction, and the edge of each lens is in contact fit with the inner wall of the mounting cavity; the tunable lens is provided with a surface with adjustable curvature; the supporting structure is provided with a lens mounting part, the tunable lens is mounted on the lens mounting part, at least part of the surface of the supporting structure is matched with the inner wall of the mounting cavity in shape, and the supporting structure is arranged in the mounting cavity and is in contact fit with the inner wall of the mounting cavity. The optical assembly provided by the utility model solves the technical problem of poor imaging quality caused by poor concentricity between the tunable lens and other lenses of the optical assembly in the prior art.

The embodiment of the present application provides a kind of image format conversion method, device and video processing equipment.The method comprises the steps of: obtaining the image to be converted;Determine a plurality of pixel blocks and a plurality of encoding modes based on the image to be converted, wherein the plurality of encoding modes correspond to a plurality of mode index values;According to the luminance component deviation value of the pixel block under the plurality of encoding modes respectively, determine the target encoding mode of the pixel block, wherein the target encoding mode is one of the plurality of encoding modes;Based on the target encoding mode, a plurality of chrominance components of the pixel block are encoded to obtain a plurality of chrominance component output values of the pixel block;According to the target encoding mode, determine the target mode index value from the plurality of mode index values;Based on the target mode index value, a plurality of luminance components and the plurality of chrominance component output values, obtain target data and output.

The application provides a large-view-field compact reflective projection objective lens, and belongs to the technical field of semiconductor manufacturing lithography. The projection objective lens system comprises six aspheric mirrors. After a light source irradiates a mask, the light source sequentially passes through a first mirror M1, a second mirror M2, an aperture, a third mirror M3, a fourth mirror M4, a fifth mirror M5 and a sixth mirror M6. The aperture is located between the second mirror M2 and the third mirror M3. Finally, the light source is imaged on a wafer surface, and the projection objective lens system realizes an image reduction ratio of 0.2. In the embodiment of the application, the light path does not have a light blocking phenomenon and the structure is compact. The main optical parameters are as follows: the numerical aperture on the image side is 0.2, the object field on the object side is 10mm, and the total length of the system is 1280mm.

The invention relates to medical imaging equipment, a collimator and a processing method of the collimator. As the two adjacent rows of collimation holes of the collimation body are arranged in a staggered manner, if a cross splicing method in the prior art is adopted, splicing seams are formed in the collimation holes, so that parts of the collimation holes are shielded by the splicing seams, or the splicing seams are formed between the two collimation holes, so that the thickness of a partition plate between the two collimation holes is increased; therefore, part of gamma photons capable of entering the collimation hole are blocked, the sensitivity of the part is reduced, and the uniformity of the collimator is influenced. According to the invention, the splicing edge of the collimator is designed, so that in the collimator formed by splicing, the splicing seam is located in the collimation hole, although the splicing seam is formed in the collimation hole, the equivalent aperture of the collimation hole at the splicing seam is not changed, namely the effective aperture is not changed, so that the counting of gamma photons entering the collimation holes is consistent, and the accuracy of the gamma photons entering the collimation holes is improved. Therefore, the uniformity of the collimator can be ensured, and the image quality is further ensured.

This disclosure provides an image processing method, model training method, device, and medium. The method includes: acquiring an image to be processed; inputting the image to be processed into a first target image processing model to obtain a first target feature image output by the first target image processing model; subtracting the first target feature image from the image to be processed to obtain a target preprocessed image; inputting the target preprocessed image into a second target image processing model to obtain a second target feature image output by the second target image processing model; and adding the first target feature image and the second target feature image to obtain a target image. The target image extracted by this technical solution can include both primary and secondary features from the image to be processed, thereby ensuring that the image quality of the target image meets requirements, improving the success rate of image recognition based on the processed image, and enhancing the user experience.

This invention relates to an optical imaging lens, comprising a first lens barrel, a second lens barrel, a lens group, and multiple spacer elements. The lens group, arranged sequentially from the object side to the image side along the optical axis, consists of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first, second, third, and fourth lenses are housed within the first lens barrel, while the fifth, sixth, and seventh lenses are housed within the second lens barrel. The optical imaging lens satisfies the following parameters: 4.62 ≤ R9 / R8 ≤ 5.89; 2.23 ≤ T56 / CT5 ≤ 3.68; 14.34 ≤ f6 / EP56 ≤ 20.05. This invention's optical imaging lens balances miniaturization, high-precision focusing, and excellent imaging across the entire focal length range, adapting to the application requirements of high-pixel, high-sensitivity sensors.

The present application relates to a kind of optical imaging lens, including lens barrel and the imaging lens group and multiple spacer elements placed in lens barrel, the imaging lens group is sequentially included from object side to image side along optical axis: the first lens with optical power, second lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, eighth lens;Multiple spacer elements include second spacer element between the second lens and the third lens, and directly contact with the image side surface of the second lens;The optical imaging lens satisfies: 3.22≤D2s / R3≤5.31 and 2.59≤d2s / R4≤3.83;Wherein, R3 is the curvature radius of the object side surface of the second lens, R4 is the curvature radius of the image side surface of the second lens, D2s is the outer diameter of the object side surface of the second spacer element, and d2s is the inner diameter of the object side surface of the second spacer element.The optical imaging lens of the present application has at least one of the technical advantages of high resolution, large field of view, etc., and has strong market competitiveness.

The present application relates to the technical field of plant physiological ecology research, and particularly relates to a plant root in-situ nondestructive monitoring device and method. The present application provides a plant root in-situ nondestructive monitoring device, comprising: an observation tube, which is open at the upper end, closed at the lower end and pre-buried in the soil; a monitoring probe, comprising a probe main body, an image acquisition part and an annular light supplement part, wherein the probe main body is centrally placed in the observation tube, and the image acquisition part and the annular light supplement part are arranged at the lower end of the observation tube. In order to solve the problem that the imaging range of the prior art is limited by the length of the linear slide rail and needs to be spliced and fused twice, the monitoring probe has the centralizing feature through the centralizing appliance, and the image acquisition part monitors the image of the observation tube wall from top to bottom by using the self-weight of the monitoring probe and the traction release of the electric line reel. Compared with the driving mode of the linear slide rail, the imaging range is not limited and does not need to be spliced and fused twice.

The application provides a robot precision docking method and system fusing visual guidance and coordinate conversion, and the method comprises the following steps: based on a global coordinate system of a robot, the robot is controlled to move, and a visual detection device carried on an end effector of the robot is positioned to a preset adjacent area of a target docking part; an image containing the target docking part is acquired through the visual detection device; based on processing of the image, motion adjustment instructions of the robot are continuously generated and executed in a closed-loop control mode until a to-be-docked part carried on the end effector is docked with the target docking part. The application solves the problems of low precision and low efficiency in the existing stopcock docking process.

The invention discloses a fisheye image multi-branch adaptive enhancement method and system based on hardware state perception, and the method comprises the following steps: collecting hardware parameters, such as memory utilization rate, calculation utilization rate, temperature and the like, in real time through a GPU state monitoring module, and obtaining a comprehensive budget value through normalized score and weighted summation; and the strategy selection module adaptively selects an enhancement strategy from three differentiated neural network branches of fast, balanced and high-quality in combination with a budget value and time constraint. Dynamic balance of fisheye image enhancement quality, processing efficiency and system stability is achieved, the GPU resource utilization rate is improved by 25%, the system stability is improved to 99.5% or above, real-time processing at the frame rate of 30 fps or above is supported, and the method is suitable for fisheye monitoring, vehicle-mounted surround view and other scenes and can be expanded to wide-angle image, super-resolution reconstruction and other tasks.

The invention relates to the technical field of optical communication, and discloses a miniaturized aspheric transmission-type wide-temperature optical antenna, which comprises a lens barrel, and is characterized in that an aspheric single lens, a first space ring, an aspheric positive lens, a first spherical negative lens, a second space ring and a second spherical negative lens are sequentially arranged in the lens barrel of the optical antenna; the aspherical positive lens and the first spherical negative lens are glued to form a glued lens group; the first space ring is used for fixedly setting the distance between the aspherical single lens and the glued lens group; the second space ring is used for dynamically adjusting the distance between the objective lens and the eyepiece; the objective lens is composed of the aspheric single lens, the first space ring and the glued lens group. The eyepiece is the second spherical negative lens. The beneficial effects are that the length of the optical antenna is shortened, the installation and adjustment difficulty is reduced, and the optical antenna is miniaturized.

The utility model discloses a kind of self-adapting enteromorpha detection devices for unmanned ship, including unmanned ship body, image acquisition equipment is arranged on unmanned ship body, image acquisition equipment includes several cameras and automatic telescopic rod, and movable end of automatic telescopic rod is provided with camera along circumferential array;Power supply is arranged in unmanned ship body, and power supply is respectively connected with data storage equipment, data processing equipment, relay and motor drive module, the camera is connected with data storage equipment, data storage equipment is connected with data processing equipment, relay is connected with camera, and motor drive module is connected with the direct current motor of automatic telescopic rod;The utility model adjusts the height of camera by automatic telescopic rod, and enhances the flexibility of acquisition equipment.

The application is suitable for the fields of high-end flexible sensing preparation and multi-modal sensing detection technology, and provides a patch type ultrasonic biomarker integrated sensor and a detection method.The sensor comprises a patch type ultrasonic transducer array, which is used for real-time monitoring of muscle and bone diseases, realizes multi-parameter multi-modal data information fusion detection and analysis of muscle and bone structure-function, a microneedle electrode array, which is used for in-situ detection of biomarkers and collection of physiological electrical signals, a flexible electronic circuit, which is used for bearing and connecting the patch type ultrasonic transducer array and the microneedle electrode array, and an acoustic coupling adhesive layer, which is used for skin fitting and acoustic coupling.The application can systematically evaluate the structure, mechanics, metabolic inflammation level and nerve function activity coordination of muscle and bone, provides a new means for early identification, quantitative evaluation and personalized intervention of muscle and bone diseases, and has important clinical and industrial values.

This utility model relates to the field of lens technology and discloses a projection lens, including a lens body with a protective sleeve on the outside. A heating mechanism is provided on the lens body, comprising a drive motor, a rotating rod, a first gear, a large gear, a reciprocating lead screw, a second gear, a moving ring, and a heating ring. This utility model, through its heating and heat dissipation mechanisms, can effectively cope with different ambient temperatures and ensure image quality. In low-temperature environments, the drive motor and heating ring are activated to uniformly heat the lens body. This avoids changes in the relative positions and optical power between the lenses due to low-temperature contraction of the lens materials, preventing image blurring and ensuring that the projection lens can operate normally in cold environments, maintaining a stable imaging effect.

The invention discloses an optimal local speckle image reconstruction method based on a multimode optical fiber. The method comprises the following steps: S1, acquiring a speckle image of an MNIST handwritten form after the MNIST handwritten form is subjected to multimode optical fiber mode dispersion by using an optical experiment system; s2, the obtained speckle images are divided into a training set and a test set, 2000 speckles are used for training, and 200 speckles are used for testing; s3, dividing each speckle image into a plurality of small areas with the same area; s4, traversing the whole speckle picture by using a principal component analysis algorithm, and selecting an area with the most abundant information; and S5, regarding the region with the most abundant information, including the neighborhood small blocks, as an optimal local speckle region, and inputting the optimal local speckle region into a lightweight network for training and reconstruction. According to the invention, redundant information in the speckle image can be removed, the quality of the reconstructed image is ensured, the calculation cost is reduced, and the image reconstruction speed is greatly improved.

According to the integrated camera module self-cleaning system, the cleaning module is arranged on the front shell of the camera module body, the driving device in the module drives the cleaning module to remove dirt on the surface of a lens, the imaging quality of camera equipment is guaranteed, the driving device is integrated in the camera module body, the size is small, and the driving device is convenient to use. According to the integrated module self-cleaning system, parts are concentrated, compared with a traditional self-cleaning camera module, the integrated module self-cleaning system does not need an additional space structure for fixing, only the camera module body needs to be fixed, the space of a client host is saved, the number of client parts and installation procedures are reduced, the cost is saved, the driving device is internally arranged, and the camera module body is provided with a power supply interface. The client host does not need to provide an additional power supply interface to power the driving device, and user experience is improved.

The invention provides an imaging unit, a process cartridge and a printing system.The imaging unit comprises a first frame, a photosensitive drum, a charging roller assembly and a conducting strip, the photosensitive drum and the charging roller assembly are both installed on the first frame, a charging roller of the charging roller assembly is in contact with the photosensitive drum, and the conducting strip is installed on the first frame and electrically connected with the charging roller assembly; the imaging unit further comprises an elastic porous adsorption component, the elastic porous adsorption component is installed on the first frame or the charging roller assembly, the elastic porous adsorption component makes contact with the peripheral face of the charging roller, the included angle between the moving direction of the charging roller and the bottom face of a shell of the first frame ranges from 0 degree to 32 degrees, and in the normal direction of the bottom face of the shell, the elastic porous adsorption component makes contact with the charging roller. A first distance between the axis of the charging roller and the bottom surface of the shell is smaller than a second distance between the axis of the photosensitive drum and the bottom surface of the shell; the printing system comprises the processing box, the processing box comprises the imaging unit, the imaging unit is simple in structure and low in production cost, and the position of the charging roller assembly can be flexibly arranged.

The invention discloses a satellite-based sea ice edge determination method and device and a storage medium. Belongs to the technical field of satellite monitoring. The method comprises the following steps: acquiring a remote sensing image including sea ice shot by a satellite and preprocessing the remote sensing image to generate a sea ice image; inputting the sea ice image into a first U-Net network to generate a corresponding sea ice prediction contour map; inputting the sea ice image into a second U-Net network to generate a corresponding prediction tensor; determining an accumulated snow area, a sea ice melting area, a normal sea ice area and a seawater area in the sea ice image according to the sea ice prediction contour map and the prediction tensor; and for the snow accumulation region and / or the sea ice melting region, based on a Markov chain transfer matrix, determining a sea ice edge line in the region. Therefore, the high-precision sea ice edge lines in the snow accumulation area and the sea ice melting area are seamlessly updated to the corresponding positions of the sea ice prediction contour map, and a complete, accurate and anti-interference real sea ice outer edge contour can be obtained.

The invention discloses a visual navigation device for artificial intelligence assisted percutaneous endoscopic lumbar intervertebral disc resection, which belongs to the technical field of medical surgical navigation and comprises an image acquisition and processing module, an intelligent navigation algorithm module and a visual interaction interface module which are in signal connection in sequence, the image acquisition and processing module is used for acquiring medical image original data of a lumbar vertebra part of a patient, outputting segmented anatomical structure data, cooperatively acquiring image data through double devices, realizing accurate image segmentation and three-dimensional reconstruction in combination with a convolutional neural network algorithm, and ensuring the presentation accuracy of an anatomical structure; according to the system, the optimal operation path planning and real-time instrument tracking functions are achieved, the operation path deviation is effectively avoided, the injury risk is reduced, partition display and color identification technologies are adopted in a visual interaction interface, the system is visual and clear, multimode human-computer interaction is supported, the operation process is simplified, the learning and operation time of doctors is shortened, and the operation efficiency is improved.

This application provides an image data processing method and apparatus. Specifically, it involves acquiring an image to be processed; the image to be processed includes multiple projected images, each of which is obtained by scanning a target object using SPECT within a sparse angular range at a first interval angle; the first interval angle is greater than a second interval angle for scanning the target object across the entire angular range; denoising the image to be processed is performed to obtain a denoised image; tomographic reconstruction is performed on the denoised image to obtain image domain volume data; denoising is performed on the image domain volume data to obtain denoised image domain volume data; super-resolution processing is performed on the denoised image domain volume data to obtain a target image; the resolution of the target image is higher than the resolution of the image to be processed. In other words, the image data processing method provided by this application can improve scanning speed and reduce scanning time while ensuring image quality.

The application discloses a laser printing method, a laser printer and a storage medium, and relates to the technical field of laser printing. The laser printing method comprises the following steps: performing gray scale conversion on a to-be-printed image to obtain a gray scale image; determining an initial laser energy value of each pixel point in the gray scale image; for each pixel point in the gray scale image, determining a laser energy compensation value of each pixel point in the gray scale image according to the initial laser energy value of each pixel point in a neighboring region; determining a target laser energy value of each pixel point in the gray scale image according to the laser energy compensation value and the initial laser energy value of each pixel point in the gray scale image; and printing the to-be-printed image according to the target laser energy value. The initial laser energy value of each pixel after the gray scale conversion of the to-be-printed image is compensated by the laser energy compensation value, the target laser energy value for printing is determined, and printing is performed, so that the image texture of an art sketch can be simulated during printing, and the image quality is ensured while high-efficiency printing is realized.

The utility model discloses a grabbing clamping jaw used for an SMIF wafer carrier, comprising a clamping jaw base plate, one end of the clamping jaw base plate is provided with a positioning groove used for positioning the SMIF wafer carrier, one end of the clamping jaw base plate is also provided with a pressure detection module, and the other end of the clamping jaw base plate is provided with a camera fixing support. The camera fixing support is sequentially provided with a light supplementing lamp and a depth camera from top to bottom, wherein the light supplementing lamp and the depth camera face downwards in an inclined mode.