39results about How to "Suitable for observation" patented technology

The invention provides a colorized night vision image brightness enhancement method applicable to an automotive assisted driving system. The method comprises the following steps of: firstly, transforming a night vision colorized image from a red, green and blue (RGB) space to a luma and chroma (YUV) space to overcome the shortcoming of color distortion caused by direct processing of the night vision colorized image in the RGB space; then processing a brightness component image by using an S-curve correction Retinex algorithm so as to enhance the detail and the brightness of the image; enhancing the brightness component image by a selective nonlinear grey level mapping method and keeping good shadow information; and finally, performing weighed fusion on the two enhanced images by a weighed fusion method and inversely transforming the weighed fusion brightness component image and a UV component image to the RGB space for displaying. The enhanced image acquired by the method keeps the necessary shadow information and has the detail and the brightness applicable to vision observation; and the night vision colorized image has a good enhancement effect.

The invention discloses a small-sized closed horizontal circulating water channel device which is a closed flow circulating channel composed of sections. The top of a test section is open, a bent section of a medium guide section is provided with a medium guide corner rectifier, a bent section of a large guide section is provided with a large guide corner rectifier, and a '#'-shaped cellular rectifier and a net rectifier are arranged between the large guide section and a first contraction section sequentially. A small guide section is provided with a rotary shaft, and the rotary shaft is provided with a propeller at one end. By the structure, the closed horizontal circulating water channel has the advantages that a circulating pipeline flows stably; the water channel is suitable for observation of a flow field and observation of a test model; flow rate of a test section along a cross section is distributed evenly and the speed rate is controllable; speed of advection and speed of turbulence are controllable; and water transparency is high, and a fluid mechanics basic test, a ship maneuverability test, a large-sized algae cultivation method test, observation and shooting of a flowing pattern and the like can be performed.

The invention discloses a liver three-dimensional database system constructed on the basis of a DICOM (Digital Imaging and Communications in Medicine) medical image. The liver three-dimensional database system comprises a data receiving module, an image reading module, a VTK (The Visualization Toolkit) three-dimensional image processing module and a liver information database, wherein the data receiving module is used for obtaining a liver CT (Computed Tomography) image of a DICOM format; the image reading module is used for converting the liver CT image of the DICOM format into the liver CT image of a BMP (Bitmap) format; the VTK three-dimensional image processing module generates a liver three-dimensional image; and the liver information database carries out classification storage on a specific liver three-dimensional image according to specific liver source information. The VTK three-dimensional image processing module comprises an image preprocessing submodule, a liver extraction submodule and an image drawing submodule, wherein the image preprocessing submodule reads the liver CT image of the BMP format and carries out image smoothness and image enhancement processing on each liver CT image, the liver extraction submodule detects the contour edge of the liver and extracts a liver contour line, and the image drawing submodule carries out surface reconstruction on the liver according to the liver counter line to obtain a specific liver three-dimensional image.

The invention discloses a reality augmenting system which comprises a display screen, an imaging lens, a half-transparent and half-reflecting mirror, a first infrared camera, a second infrared camera and a processor. The display screen, the imaging lens and the half-transparent and half-reflecting mirror are sequentially arranged along an optical axis, the half-transparent and half-reflecting mirror and the optical axis form a certain angle, the position observed by a human eye is located in front of the half-transparent and half-reflecting mirror, and a light beam emitted by the display screen is transmitted by the imaging lens and reflected by the half-transparent and half-reflecting mirror and then enters the human eye so as to enable a user to observe a virtual image formed by the imaging lens in front of the human eye. The view field of the first infrared camera is similar to the view field which can be observed by the human eye and is used for detecting environment information of the first infrared camera within a view field range and transmitting the environment information to the processor. The second infrared camera is used for capturing a three-dimensional space coordinate of the intersection point of sight lines of the human eye and transmitting the three-dimensional space coordinate to the processor. The reality augmenting system has the advantage of having a large visual angle.

The invention discloses a low-illumination image enhancement method based on local contrast stretching, and belongs to the technical field of image enhancement. According to the method, the problem that the quality of the obtained enhanced image is poor due to the fact that image details, textures and sharpness of the enhanced image cannot be guaranteed by adopting an existing method is solved. According to the invention, the method comprises the steps: stretching the local contrast of the image, so that the texture, details and definition characteristics of the output image are improved; secondly, designing a segmented global gray mapping method for calculating an initial value of an iterative process, thereby improving the global brightness contrast of the enhanced image. Experimental results prove that the image enhancement algorithm designed by the invention can effectively improve the image quality and enhance the brightness contrast of the image, and image details are very suitable for human eye observation. The method can be applied to enhancement of low-illumination images.

A radiation imaging apparatus irradiates a subject with a radioactive ray emitted from a radiation generation unit to capture a radiographic image based on a radioactive ray that has penetrated through the subject. The radiation imaging apparatus includes a histogram calculation unit configured to calculate a histogram resulting from pixel values of the radiographic image, and a radiation irradiation condition determination unit configured to determine radiation irradiation conditions for a radioactive ray to be emitted from the radiation generation unit in such a way as to flatten a distribution of the histogram.

A radiation imaging apparatus irradiates a subject with a radioactive ray emitted from a radiation generation unit to capture a radiographic image based on a radioactive ray that has penetrated through the subject. The radiation imaging apparatus includes a histogram calculation unit configured to calculate a histogram resulting from pixel values of the radiographic image, and a radiation irradiation condition determination unit configured to determine radiation irradiation conditions for a radioactive ray to be emitted from the radiation generation unit in such a way as to flatten a distribution of the histogram.

The invention discloses an infrared and visible light image fusion method based on ResNet. The infrared and visible light image fusion method comprises the following steps: decomposing a source imageinto a basic part and a detail part, and fusing the basic part by using an average weight strategy to generate a new basic part; carrying out feature extraction on the detail part by using ResNet152 to obtain a plurality of feature layers, respectively carrying out L1 regularization, convolution operation, bilinear interpolation upsampling and maximum selection strategies on the feature layers toobtain a maximum weight layer, and multiplying the maximum weight layer by the detail part to obtain a new detail part; and finally, reconstructing the image by the new basic part and the detail part.According to the infrared and visible light image fusion method, the fusion image obtains more texture information while image salient features are reserved, and artifacts and noise are effectively reduced.

The invention relates to the field of image processing, in particular to a method and system for self-adaptive enhancement of the contrast ratio of an X-ray image. The method for self-adaptive enhancement of the contrast ratio of the X-ray image comprises the following steps that a grey level histogram of a tissue area image is established, and parameters of the grey level histogram are counted; the log tensile curve coefficient of the tissue area image is calculated according to the parameters of the grey level histogram; a log tensile curve is formed according to the log tensile curve coefficient; the tissue area image is drawn according to the log tensile curve. According to the method for self-adaptive enhancement of the contrast ratio of the X-ray image, automatic analysis of tissue area images with different volumes and of different body positions can be achieved, the influences of an air area and a collimator shading area are avoided, the log tensile curve is generated in a self-adaptive mode, the original image of the tissue area image is drawn by means of the curve, and thus the brightness and contrast ratio of all tissue areas can meet the requirements for observing the tissue areas with human eyes more suitably.

The invention discloses a manufacturing method of a porous microneedle array based on metal sintering. The manufacturing method comprises the following steps that firstly, base mixed liquor is prepared and poured into a base mold, and the bottom of the base mold is provided with multiple conical holes used for manufacturing microneedles; secondly, the base mold with the base mixed liquor poured in the first step is aerated and dried, and a microneedle array obtained after drying and molding are conducted is taken out of the base mold; and thirdly, the microneedle array obtained in the second step is sintered, so that the metal porous microneedle array is obtained. By the adoption of the manufacturing method of the porous microneedle array based on metal sintering, the technology is simple, the structure is stable and the metal strength is high.

The invention discloses a multi-scale X-ray image enhancement method based on the characteristics of the human visual system. , and perform hard copy simulation; grayscale processing, channel decomposition to obtain cone images and rod images; use Laplacian pyramid algorithm to perform multi-scale decomposition of images; perform brightness and contrast adaptation; Threshold processing; images are merged respectively, and inverse sensing and inverse gain processing are performed on the merged images to realize the image reconstruction of the Laplacian pyramid, and the reconstructed image is obtained; the reconstructed image is normalized, and the normalized image is obtained. Perform color space conversion and gamma correction to obtain the corrected RGB color space image and output. The invention can effectively enhance the contrast and details of the X-ray image, and can better reduce the influence of noise on the X-ray image.

The invention discloses a weld joint radiographic inspection negative film image enhancement method, a storage medium and equipment. The method comprises the following steps: acquiring an original weld joint radiographic inspection negative film image by weld joint radiographic inspection negative film scanning equipment; constructing a training set and a test set of weld joint radiographic inspection negative film images, wherein the training set and the test set comprise image pairs of all weld joint radiographic inspection negative film image data subjected to enhancement processing and original data; creating a convolutional neural network model, wherein the convolutional neural network model comprises an encoding and decoding structure of a lower sampling layer and an upper sampling layer; and training the constructed network model by using the image data of the training set of the weld joint radiographic inspection negative image to generate a network model, and testing the modeleffect by using the image data of the test set of the weld joint radiographic inspection negative image. The weld joint radiographic inspection negative film image enhancement method is learned by using a deep learning technology, and has a good effect of processing the weld joint radiographic inspection negative film image.

The invention discloses a construction method of Slco1b2 gene knockout rat and an application thereof. According to the invention, construction of Slco1b2 gene knockout rat is carried out by using a CRISPR / Cas9 system, which includes selection of Slco1b2 knockout targets, in-vitro synthesis and transcription of sgRNA and Cas9 mRNA, preparation of pseudopregnant mother rats, in-vitro microinjectionand transplantation of single cell embryos, rat breeding and screening, and obtaining of homozygote Slco1b2 gene knockout rat. Through verification by T7EI endonuclease, the gene knockout rat prepared by the method of the invention does not generate off-target phenomenon, and in the F2-generation knockout rat of about 4 weeks, total bilirubin, direct bilirubin and indirect bilirubin content are significantly higher than that of wild type rats. The invention also proposes an application of the construction method for hyperbilirubinemia research and drug development. The method provides an effective method for researching diseases such as increased bilirubin, and provides an effective experimental tool for drug research and development, and has broad application prospects.

The invention relates to an iterative global adaptive image enhancement method, and provides the iterative global adaptive image enhancement method so as to solve the defect that an existing image enhancement method needs to set reasonable parameters manually, which is very hard to realize. The method comprises the following steps: inputting RGB color images; converting the RGB color images into HSV data; carrying out inverse gamma transformation on V-channel data of the HSV data to obtain corrected image data; with the corrected data being as an initial value of iteration, carrying out low-light gray stretching, and then, carrying out high-light gray stretching; judging whether the absolute value of the difference of iteration parameters of current iteration and previous iteration is smaller than or equal to a preset threshold value; if so, carrying out gamma correction on the result obtained through iteration, and if not, returning to the previous step for iteration continuously; and carrying out RGB transform on the result obtained after gamma correction, and displaying the enhanced image in a displayer. The iterative global adaptive image enhancement method is suitable for image enhancement tools.

The invention relates to the field of metal surface and metallographic phase observation, in particular to a portable device for observing a metal surface and the metallographic phase, which solves the problems in the prior art that a case metal workpiece cannot be observed without sampling, the metallographic phase observation is inconvenient, and direct observation of the cladding surface of the metal workpiece is inconvenient. The device comprises a digital microscope and a polisher, wherein the metal surface corresponds to the polisher before polishing, and the metal surface corresponds to the camera shooting end of the digital microscope after polishing. The portable device can be applied to observing metallographic phases of various metal pieces. Moreover, the portable device finds a small plane on the surface of a workpiece without sampling, makes a metallographic phase surface with the special polisher, observes the metallographic phase, and observes and stores a picture on a computer or a laptop.

The invention discloses a model device based on city planning, and relates to the field of city planning models. The model device comprises a supporting bottom plate, wherein the bottom surface of thesupporting bottom plate is in bolted connection with moving rollers; a supporting sleeve block is vertically and upwards welded on the top surface of the supporting bottom plate; an extending vertical rod is vertically and upwards inserted into the top end of the supporting sleeve block; one side edge of the supporting sleeve block is in bolted connection with a control key; a supporting plate Iis horizontally clamped on the top surface of the extension vertical rod; a supporting plate II is horizontally clamped on the top surface of the extension vertical rod; the side edges of the first supporting plate and the second supporting plate are horizontally in butt joint with movable plates; and fixing screw rods are uniformly in threaded connection with the side edges of the movable plates.The model device is simple in design structure and convenient and fast to operate, splicing is simpler and more convenient and the fixation is more stable by adopting multiple buckling and clamping modes, and meanwhile the internal specification design can be more visually observed by adopting the split design.

The invention belongs to the technical field of a device for testing corrosion resistant electrochemical parameters of a metal material and a surface coating film and a method for corrosion resistance fast evaluation, and especially relates to an electrolytic bath device and method for evaluation of metal and coating film corrosion resistance. The device comprises a tightening nut, a liquid injection pipe, a corrosion electrolytic bath, a fixing column and a contact gasket. The method comprises the following steps of arranging a processed metal material and a film-coated sample below the device, selecting a corrosion area, tightly pressing the surface of the sample by a test device, injecting a certain volume of a corrosion solution into a corrosion electrolytic bath by a solution injection pipe so that loading of a metered volume of the corrosion medium to the sample is realized, and then carrying out corrosion electrochemical parameter measurement and corrosion resistance evaluation. The device and method have the advantages of loading convenience, operation simpleness, recycle, selective corrosion, observation convenience and wide application range.

The invention discloses a GNSS reflected signal based integrated industrial control apparatus for detecting marine parameters. The apparatus is characterized by comprising a received signal antenna group (1), a solar power supply unit (2), and a signal and information processing integrated industrial control apparatus (3). The received signal antenna group (1) receives direct signal emitted by a navigation satellite and reflected signal reflected by the sea surface; the signal and information processing integrated industrial control apparatus (3) conducts related operations on the direct signal and reflected signal, and conducts inversion to obtain marine parameters; the signal and information processing integrated industrial control apparatus (3) comprises an information transmission module (35), and the information transmission module (35) transmits the inversion marine parameters to a remote control terminal for storage on a real-time basis.

The invention discloses a CT ultralow-dose automatic three-dimensional positioning scanning method and a system. The method comprises the following steps: under the condition of conventional radiationdose, scanning to obtain a normal dose image, adding quantum noise and electronic noise into the normal dose image to generate an ultralow dose spiral scanning image, and performing AI low dose reconstruction to obtain a three-dimensional positioning image for CT scanning. According to the invention, under the conditions of not stopping the rotation of the rack and adopting similar radiation doselevels, the three-dimensional positioning image is directly obtained, the area needing to be scanned is automatically positioned, automatic scanning is carried out, the positioning accuracy and scanning efficiency are improved, meanwhile, the radiation dose of a patient can be reduced, and the requirements for the technical level, experience and the like of scanning operators are reduced.

The invention relates to cat eyes and particularly discloses a children visual type safety cat eye. The children visual type safety cat eye comprises a cat eye which is arranged on a door body. The children visual type safety cat eye is characterized in that the inner lateral side of the door body is provided with a children visual hole; an upper plane mirror which is located above the cat eye and a lower plane mirror which is located under the visual hole are arranged in the door body; the upper plane mirror and the lower plane mirror are opposite to each other. According to the children visual type safety cat eye, the structure is simple, the use is convenient, the design is reasonable, the application is flexible, a certain safety effect on the personal safety of children is achieved, and resident households are free of psychological alert and worry when the children are at home alone.

The invention relates to the technical field of optical control systems, in particular to an optical control system of a two-photon fluorescence immunoassay analyzer. The system is characterized in that a two-photon laser generation module, a detection control module and an adjustment transmission module are mounted on a mounting bottom plate; a photomultiplier is arranged in the detection controlmodule; two-photon laser emitted by the two-photon laser generation module can be focused into a reaction cup through the detection control module and the adjustment transmission module; and the two-photon laser excites a detection substance in the reaction cup to generate fluorescence, and the fluorescence can return to the photomultiplier of the detection control module through the adjustment transmission module to be measured. The two-photon laser generation module is used for generating two photons, and due to the fact that the wavelength of the two photons is long, compared with short-wavelength light, the long-wavelength light is less affected by scattering and easily penetrates through a specimen, background interference fluorescence is further reduced, and the accuracy of equipment detection and analysis is improved.

The invention relates to the technical field of navigation, and discloses a multi-angle adjusting and fixing support mechanism of an automobile navigator. The multi-angle adjusting and fixing supportmechanism comprises a shell; a first pulley is fixedly connected to the back face of the shell; and a conveying belt is slidably connected to the exterior of the first pulley. According to the multi-angle adjusting and fixing support mechanism of the automobile navigator, a fixing mechanism is rotated so that protruding blocks cannot clamp a telescopic column any more, the navigator fixed in a fixing plate can further move up and down and rotate left and right, and therefore the effect that drivers of different heights can watch the navigator conveniently is achieved; the fixing plate is moved, so that a connecting column drives the conveying belt to move; furthermore, the first pulley I and a second pulley drive the shell to move; the size of a first rolling wheel is larger than the sizeof the first pulley and the size of the second pulley, so that the horizontal movement distance of the fixing plate is larger than the horizontal movement distance of the shell, the navigator can havea larger left-right movement space, and the effects that the navigator can be adjusted at multiple angles and is more suitable for observation of the drivers are achieved.

The invention discloses an endoscope image enhancement method and an endoscope device. The endoscope image enhancement method comprises the following steps: acquiring an original endoscope image and extracting edge information of the original endoscope image to obtain an edge image; improving the brightness of a low-light area of the original endoscope image to obtain a first endoscope image; overturning the first endoscope image and performing color equalization processing to obtain a second endoscope image; performing Gaussian blur processing on the second endoscope image to obtain a third endoscope image; performing color equalization processing on the third endoscope image to obtain a fourth endoscope image; fusing the fourth endoscope image with the original endoscope image to obtain a fifth endoscope image; sharpening the edge image and the fifth endoscope image to obtain an endoscope enhanced image; according to the method, a series of processing such as low-light area brightness improvement, overturning and color equalization, Gaussian blur, secondary color equalization, fusion and sharpening in combination with edge information is carried out on the original endoscope image, and the method is more suitable for observation and diagnosis of doctors.

The invention provides a transparent agent for treating a root tip of a plant, comprising hydrated trichloroacetaldehyde, glycerin and water. The ratio of the hydrated trichloroacetaldehyde, the glycerin to the water in g / ml / ml is 3-9:1:3, wherein the pH of the clearing agent is 1.1-7.5. The invention also provides the application of the transparent agent in transparent treatment of the root tip of the plant, a transparent treatment method and a method for adjusting transparent treatment conditions of the root tip of the plant. The transparent agent provided by the invention adjusts the groupdistribution ratio in the existing transparent agent, and is applied to a material for treating the root tip of the plant to obtain the root tip of the plant with small degree of cell plasmolysis, normal shape, high definition and suitable observation. The transparent agent is beneficial to observe and statistically and quantitatively analyze the root tip of the plant. The optimal conditions for the transparent treatment of the root tip of the plant can also be filtered according to the transparent treatment effect of the root tip, the proportion of cell plasmolysis is reduced, the proportionof normal morphological cells is increased, the observation definition of cells is improved, and reference is provided for the development of the overall transparency technology of the root tip of theplant.

A low-illuminance image enhancement method based on local contrast stretching belongs to the technical field of image enhancement. The invention solves the problem that the image detail, texture and clarity of the enhanced image cannot be guaranteed by the existing method, resulting in poor quality of the obtained enhanced image. The present invention firstly stretches the local contrast of the image, so as to improve the texture, detail and clarity of the output image. Secondly, a segmented global grayscale mapping method is designed to calculate the initial value of the iterative process, so as to improve the global brightness contrast of the enhanced image. Experimental results verify that the image enhancement algorithm designed in the present invention can effectively improve the image quality, enhance the brightness contrast of the image, and the image details are very suitable for human observation. The invention can be applied to the enhancement of low-illuminance images.

The invention discloses a model device based on urban planning, which relates to the field of urban planning models, and comprises a support base plate. The bottom surface of the support base plate is bolt-connected with moving rollers, and the top surface of the support base plate is welded vertically upward with a support sleeve block. , the top of the support block is inserted vertically upward with an extension pole, one side of the support block is bolted to a control key, and the top surface of the extension pole is horizontally clamped with a support plate 1, The top surface of the extension pole is horizontally clamped with the support pallet 2, the sides of the support pallet 1 and the support pallet 2 are horizontally connected with movable plates, and the sides of the movable plates are evenly threaded with fixed screws , the design structure of the device of the present invention is simple, convenient and quick to operate, and adopts multiple fastening and clamping methods to make the splicing easier and more stable to fix. Intuitive observation function.