206results about How to "Improve imaging effect" patented technology

The invention belongs to the technical field of fundus imaging, and discloses an ultra-wide-angle ellipsoid confocal laser scanning fundus imaging system, which comprises a light splitting module, a light condensing module, a scanning module, a transmitting mirror group, an ellipsoid reflector and a detection module, wherein the center of the scanning module and the center of the transmitting mirror group are located on the same optical axis A, the pupil of the human eye is located at the first focus of the ellipsoidal reflector, and the entrance pupil of the transmitting mirror group is located at the second focus of the ellipsoidal reflector; and the transmitting lens group comprises a movable focusing lens and is used for changing the position of a first image surface of light reflected by the retina of the human eyes when moving along the optical axis A so as to realize clear imaging of the retina of the human eyes with different diopters. Under the condition that a free-form surface is not introduced, ultra-wide-angle multi-wavelength confocal laser scanning fundus imaging with the single intraocular field angle of 200 degrees is achieved, and the full-field optical resolution reaches 15 micrometers. And by moving the focusing lens, imaging compensation can be carried out on human eyes with diopters of-15D to + 15D.

The invention discloses a differential polarization confocal microscopic imaging system and method of a multi-focus channel, and relates to the technical field of optical microscopy. Comprising a light source emission module, a dichroscope (6), a two-dimensional galvanometer module, a scanning module, a sample acquisition module, a detection module and an imaging terminal (17). According to the invention, differential polarization imaging and a multi-focus channel confocal technology are combined, so that the imaging quality of the confocal microscopic system is further improved on the premise of ensuring the confocal imaging speed; meanwhile, differential imaging is introduced, so that the imaging contrast ratio can be greatly improved, and the confocal microscopic system can obtain a better imaging effect in the application field of thick tissue microscopic imaging.

The invention relates to a terahertz radar imaging system based on four-inch spinning, which belongs to the technical field of terahertz wave imaging and comprises a femtosecond laser light source, a beam splitter, a laser pumping terahertz transmitting module, a detection laser transmission module and a terahertz detection module which are arranged along the laser incidence direction. An efficient, large-size and ultra-wideband terahertz radiation source and a radar imaging device are fused, high-signal-to-noise-ratio and high-resolution terahertz imaging of a large-size target is achieved, and the system is low in cost, easy to construct, free of complex parabolic mirror combination, firm and reliable in performance and suitable for large-size target imaging. And the requirements of various engineering application scenes on synthetic aperture and nondestructive detection imaging can be practically met.

The invention relates to a medium-wave infrared microscopic imaging lens for an optical transfer function measuring instrument, and relates to the technical field of optical testing. The medium-wave infrared microscopic imaging lens is sequentially provided with a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens along a light path propagation direction, and an aperture diaphragm is arranged on the incident plane of the sixth lens. The medium-wave infrared microscopic imaging lens for the optical transfer function measuring instrument is formed by connecting the infinity objective lens with the infinity tube lens, and the lens is suitable for medium-wave microscopic imaging and excellent in imaging performance; tolerance capacity is loose, and processing and adjustment are easy; the testing efficiency is high, the cost is low, and the practical application value is achieved.

The invention discloses a heating structure used in a scanning electron microscope and a use method of the heating structure, and relates to the technical field of scanning electron microscope high-temperature performance tests.The heating structure comprises a laser, a shell module, a laser clamping module and an electron back scattering diffraction scanning fixing module, and the upper surface of the electron back scattering diffraction scanning fixing module is obliquely arranged; the laser clamping module is installed on the electron back scattering diffraction scanning fixing module, the shell module is installed above the laser clamping module, a heating dodging plate used for placing a sample to be tested is arranged in the shell module, and the laser clamping module is used for clamping a laser lens of a laser. Laser beams output by the laser lens are irradiated on the heating dodging plate, the two ends of the to-be-tested sample extend out of the shell module and are connected with the stretching table, and an observation hole for observing the sample is formed in the upper end of the shell module. According to the invention, the imaging definition of the scanning electron microscope can be improved, and the in-situ high-temperature mechanical property test and the EBSD high-temperature analysis experiment in the scanning electron microscope can be smoothly carried out.

The invention discloses a multi-spectral imaging system and method in a single-pixel type ultraviolet-visible-infrared wide spectral range. The system comprises a light source module, a modulation device, a lens group, a multi-spectral detection module, a multi-channel data acquisition module and a data processing module, according to the invention, a plurality of narrow-band detectors with different spectral responses are introduced into the multispectral detection module, so that additional light splitting devices and light filtering devices are avoided, parameters such as view fields, view angles and pixel numbers of images obtained by using different narrow-band detectors are completely the same, the problem of image registration does not exist, and data analysis and image fusion are facilitated; in addition, the size of the narrow-band detector is basically not limited and can reach the centimeter magnitude, and the imaging capability is improved under the condition of weak light. The multispectral imaging system provided by the invention has the characteristics of single-pixel imaging, large number of spectrums, wide spectral range, high imaging speed, good temporal-spatial resolution and small size.

The invention provides an image processing method and device, electronic equipment, a chip and a storage medium, and relates to the field of image processing.The method comprises the steps that a reference image is determined from multiple frames of shot images based on quality scores of the multiple frames of shot images; wherein the multiple frames of shot images are obtained by shooting the same shot object by adopting different shooting view angles; performing shadow correction on the multiple frames of shot images based on shadow areas in the multiple frames of shot images to obtain multiple frames of corrected images; based on the homography matrix of the multiple frames of shot images, aligning the multiple frames of corrected images to the reference image to obtain multiple frames of aligned images; wherein the homography matrix is used for indicating a perspective transformation relation of distortion of the shot image to the first reference image; and performing image synthesis according to the multiple frames of aligned images to obtain a target image. Therefore, the problem of shadow shielding caused by illumination can be eliminated, and the imaging effect is improved. In addition, assistance of depth-of-field information and multi-exposure is not needed, and the complexity of image processing can be reduced.

The invention provides a double telecentric projection objective for focusing and leveling, which is applied to the technical field of semiconductor equipment manufacturing, the double telecentric projection objective comprises an object plane, a front lens group, an aperture diaphragm, a rear lens group and an image plane which are sequentially arranged along an optical axis direction, and the front lens group and the rear lens group are symmetrically arranged along the aperture diaphragm. Therefore, the double-telecentric projection objective lens is of a refraction type and symmetrical object space and image space double-telecentric structure. The double-telecentric projection objective lens adopts a refraction type structure, compared with a reflection type structure, the double-telecentric projection objective lens is beneficial to reducing detection, installation and adjustment difficulty and reducing cost, and the double-telecentric projection objective lens adopts a symmetrical double-telecentric structure and has the advantages of being simple in structure, low in cost and good in imaging performance.

The invention relates to the technical field of medical instruments, and provides a radio frequency gold microneedle control system based on subcutaneous impedance identification, and a radio frequency gold microneedle is provided with an electrode array for impedance tomography. Comprising the following steps: an impedance distribution reconstruction module generates reconstructed impedance distribution from a voltage signal of subcutaneous tissue collected by an electrode array through an impedance distribution reconstruction model based on a genetic algorithm; the impedance imaging module generates an impedance distribution image for reflecting subcutaneous tissue impedance distribution from the reconstructed impedance distribution through an impedance rate segmentation model based on a UNet architecture; the depth control module determines the recommended depth of the radio frequency gold microneedle according to the impedance distribution image; and the radio frequency energy control module adjusts control parameters of a control algorithm for controlling the radio frequency energy of the radio frequency gold microneedle according to the plurality of impedance distribution images. Accurate segmentation judgment and better imaging effect on impedance distribution are achieved, and then impedance imaging is applied to depth and energy pulse control of the radio frequency gold microneedle.

The invention belongs to the technical field of X-ray detection, and particularly relates to lead-free two-dimensional double perovskite, a preparation method of the lead-free two-dimensional double perovskite and an X-ray detector manufactured based on the perovskite. The lead-free two-dimensional double perovskite is applied to X-ray detection. According to the preparation method, histamine dihydrochloride (C5H11Cl2N3Cl), silver chloride (AgCl) and bismuth trioxide (Bi2O3) are mainly used as raw materials, a mixed solution of hydrobromic acid (HBr) and hypophosphorous acid (H2PO2) is used as a solvent, a single crystal material ((C5H9N3) 2AgBiBr8 single crystal) is prepared through a hydrothermal method, and the two sides of the single crystal are coated with silver paste to serve as electrodes, so that the direct type X-ray detector is obtained. The preparation method disclosed by the invention has the characteristics of simplicity, easiness in operation, low requirement on equipment, low cost, low energy consumption and suitability for expanded production.

The invention provides an imaging equipment calibration device and method, imaging equipment and electronic equipment, and relates to the field of imaging equipment calibration. The calibration device of the imaging equipment comprises a deviation analysis module and a calibration module, and the deviation analysis module is used for obtaining a deviation value between a current position and an ideal position of a rotating shaft of the imaging equipment according to at least three celestial body images at different spatial positions; and the calibration module is used for calibrating the imaging equipment based on the deviation value. According to the calibration device of the imaging equipment provided by the embodiment of the invention, the autonomy of equipment calibration can be effectively improved, and for the user side, the calibration process is greatly simplified, and the calibration efficiency, accuracy and reliability are improved.

The invention relates to the technical field of sensing equipment synchronous control, and discloses a camera synchronous triggering system and method and computer equipment. The system comprises a vehicle-mounted upper computer which is used for sending a working mode control instruction to a synchronous trigger box; the positioning device is used for sending a first pulse signal corresponding to the position information to the synchronous trigger box; the laser radar is used for sending a second pulse signal corresponding to the distance information to the synchronous trigger box; the synchronous triggering box is used for determining a target execution strategy corresponding to the target working mode according to the working mode control instruction and a pre-stored corresponding relation between the working mode and the execution strategy; the processor is used for determining a trigger signal according to the target execution strategy so as to control the camera to perform exposure; and the camera is used for receiving the trigger signal to realize exposure control. By implementing the technical scheme of the invention, the highly synchronous control of the exposure opportunity of the camera is realized, and exposure at a specific position and specific time is ensured.

The invention discloses an automatic focusing and distortion optimization method based on a large-target-surface industrial lens, relates to the technical field of lens distortion optimization, and aims to accurately identify different distortion types and provide accurate data for subsequent optimization and adjustment by comprehensively analyzing the distortion of the lens from multiple dimensions (radial, tangential and comet distortion). Through calculation of a comet distortion coefficient HJ obtained by calculating a detailed radial distortion coefficient # imgabs0 #, a first tangential distortion coefficient # imgabs1 # on an x axis and a second tangential distortion coefficient # imgabs2 # on a y axis in combination with S44, various distortion conditions (radial, tangential and comet distortion) of the lens can be quantified, and the total distortion rate D is calculated; the distance between the front focusing group A and the rear fixed lens group B of the lens is evaluated and corrected, and the imaging quality of the lens is improved through step-by-step correction (including focal length, distortion, brightness attenuation and the like) in each step from S2-S5.

The invention relates to the technical field of magnetic resonance imaging, and discloses a magnetic resonance four-dimensional dynamic imaging method and device driven by a physical model, and the method comprises the steps: obtaining the magnetic resonance K space data of a to-be-imaged part in a complete motion process; extracting a preset number of three-dimensional static images in the magnetic resonance K space data; analyzing the three-dimensional static image by using the target training model to obtain a dynamic change mode of the three-dimensional static image, and predicting a static image of a future time frame based on the dynamic change mode to obtain a four-dimensional image sequence; and applying physical constraint to the four-dimensional image sequence and correcting data in the K space domain by using a preset physical driving module, and carrying out multiple iterations to obtain a target four-dimensional dynamic imaging sequence. According to the method, high-resolution imaging of the prediction model is utilized, a small number of static images can generate the magnetic resonance four-dimensional dynamic sequence, and the problems that magnetic resonance imaging is limited in providing organ tissue dynamic motion information and complex dynamic motion joint functions and lesion conditions are difficult to comprehensively evaluate are solved.

The long-wave infrared athermalization wide-angle temperature measurement lens comprises a first lens, a second lens, a third lens, a diaphragm STOP, a fourth lens and an optical filter which are sequentially connected along an optical axis from an object side to an image side in an optical path mode. The object-side surface of the first lens is a convex surface, and the image-side surface is a concave surface. The object side surface of the second lens is a convex surface, and the image side surface is a concave surface; the object side surface of the third lens is a concave surface, and the image side surface is a convex surface; the fourth lens element has a convex object-side surface and a convex image-side surface. By adopting the optimized first to fourth lenses, the number of used lenses is reduced, the cost is reduced, the horizontal visual angle is ensured to reach 90 degrees, and the number of apertures is less than or equal to 1.0. In addition, the total optical length is smaller than or equal to 50 mm, the structure is designed to be light, and the purpose of miniaturization is achieved. Meanwhile, the advantages of optical athermalization and active and passive focusing compensation of an electric tuning system are utilized, and high imaging quality is obtained under the complex environment temperature.

The invention discloses a control method of electronic equipment and a related device, and belongs to the technical field of electronic equipment. The electronic equipment comprises a sound production assembly and a shooting assembly. The control method of the electronic equipment comprises the steps of obtaining operation states of the sound production assembly and the shooting assembly; under the condition that the sound production assembly outputs the first audio signal and the shooting assembly operates, the sound production assembly is controlled to output a second audio signal, the first amplitude of the first audio signal is larger than the second amplitude of the second audio signal, and the first amplitude and the second amplitude are the amplitudes in the target frequency band; the target frequency band is the frequency band where the resonant frequency of the shooting assembly is located.

The invention relates to a super-surface-based flat plate type super-integrated miniature spectral imaging system, which comprises a gold reflecting layer and a flat plate substrate reflecting layer integrated with a dispersion super-surface, a first focusing reflection super-surface, a second focusing reflection super-surface and a focusing transmission super-surface, incident light is split by the dispersion metasurface, then is reflected to the gold reflection layer, and then is sequentially focused by the two reflection metasurfaces and the transmission metasurface to be imaged on an image plane. The dispersion metasurface adopts a periodically arranged square nano-column diffraction grating structure and has stronger dispersion capability, and the other three metasurface elements are obtained by adopting phase optimization design, so that the imaging performance is excellent; the four metasurfaces are integrated on the same reflecting layer, system optics is only composed of two flat reflecting layers, wavefront regulation and control are achieved while light in a reflecting cavity is continuously reflected, the metasurface can be manufactured through the single photoetching technology, the structure is simple and compact, machining, assembling and adjusting are easy, and a new product is provided for a high-performance compact imaging spectrometer.

The invention discloses an image matting model training method, an image matting method and device, equipment and a medium. The image matting model training method comprises the following steps: acquiring a data set for training; constructing a background probability model formula; marking each pixel point of all the image frames by using the sum obtained by the background probability model formula to obtain a probability thermodynamic diagram of whether the pixel is the background, and obtaining a binary portrait foreground label according to the thermodynamic diagram; using the chrominance component of the data set for training and the binarized portrait foreground label to train a color threshold model of the multivariate nonlinear regression model; brightness and chrominance components of image blocks are randomly acquired in a bbox range, and a nonlinear regression model is trained to represent a calculation model for fitting an edge part of a foreground portrait into an expected fuzzy weight under blue or green backgrounds under different conditions. According to the method, the foreground imaging effect can be optimized during superposition operation, and the computing power of an image matting algorithm is reduced.

The invention belongs to the technical field of pulsed eddy current nondestructive testing, and particularly discloses a ferromagnetic component pulsed eddy current detection imaging method and system, and the detection imaging method comprises the following steps: collecting a pulsed eddy current signal of a ferromagnetic component, carrying out logarithmic processing on the pulsed eddy current signal, and then carrying out secondary filtering processing; carrying out dimension reduction processing on the signal after the secondary filtering processing; calculating an amplitude standard deviation of the signal after dimension reduction processing of each time dimension, and selecting an effective imaging interval based on the amplitude standard deviation; performing Min-Max standardization processing on the data in the effective imaging interval; and calculating a pixel value based on a processing result obtained by Min-Max standardization, and carrying out homogenization processing on the pixel value to obtain a pulsed eddy current image. According to the invention, rapid imaging can be realized aiming at the pulsed eddy current detection signal of the ferromagnetic component, so that defects can be identified and preliminarily positioned.

The invention discloses a quantitative laser speckle blood flow imaging method based on a neuromorphic visual sensor, and relates to the technical field of biomedical engineering. The method solves the problem that static scattered light caused by physiological behaviors and electronic noise of imaging equipment have adverse effects on blood flow imaging quality in a traditional laser speckle contrast imaging method, and comprises the following steps: step 1, using a helium-neon laser as a light source, and irradiating a scattering medium with an expanded laser beam to form a speckle pattern; 2, a microfluidic injector is adopted, two parameters of the inner diameter and the flow of the injector are set, and the flow speed range is controlled; 3, asynchronously sensing the change of the light intensity of the speckle pattern by using an event camera, and shooting the speckle pattern by using a frame camera; and 4, acquiring event stream data by the event camera, and processing the data by using an algorithm. Real-time and high-resolution blood flow imaging and flow velocity calculation are achieved, and the inherent limitation of a traditional method is overcome.

The invention provides an anoxic and endogenous formaldehyde dual-response supramolecular fluorescent probe as well as a preparation method and application thereof, and belongs to the technical field of fluorescent probes. The supramolecular fluorescent probe provided by the invention is composed of azobenzene calixarene and a formaldehyde response fluorescent probe included in the azobenzene calixarene. The supramolecular fluorescent probe provided by the invention can simultaneously respond to oxygen deficit and high endogenous formaldehyde microenvironment characteristics and generate a stronger near-infrared fluorescent signal for analysis and detection, so that false positive signal interference is reduced, high-specificity imaging under tumor microenvironment conditions can be realized, and a new mode is provided for precise imaging of tumors. Compared with the existing fluorescent probe, the supramolecular fluorescent probe provided by the invention combines the detection of two important biomarkers in the tumor generation and development processes, and does not need to introduce a large-volume targeting group into the molecule; the preparation method is simple, the structure is novel, the imaging performance is excellent, and the tumor is accurately subjected to near-infrared fluorescence imaging tracing.

The cooking equipment comprises a shell, a cooking body, an illumination assembly and a camera shooting piece, the cooking body is arranged in the shell, a heat dissipation air channel is arranged between the cooking body and the shell, at least part of the heat dissipation air channel is located at the top of the cooking body, and the camera shooting piece is arranged on the cooking body. A cooking cavity is defined in the cooking main body; the camera part is arranged on the top wall of the cooking main body, at least part of the camera part is located in the heat dissipation air duct, and the camera part is suitable for shooting the cooking cavity; the plurality of lighting assemblies are arranged on the top wall of the cooking main body so as to be located on the two sides of the camera part respectively, and at least parts of the lighting assemblies are located in the heat dissipation air channel and suitable for irradiating light towards the interior of the cooking cavity. Therefore, the lighting effect of the lighting assembly can be improved, the shooting visual angle of the camera part is wider, dazzle light can be prevented, the imaging effect is improved, and the working reliability of the lighting assembly and the camera part can be guaranteed.

The invention discloses a broadband signal amplitude and phase correction method based on joint error compensation, which is characterized in that waveform nonlinearity caused by a hardware circuit is compensated by using a reference channel technology, amplitude and phase errors are estimated and compensated in a broadband synthesis process by using a joint error compensation method, and finally distortion correction is performed through a frequency domain correction algorithm. Amplitude and phase correction processing of broadband signals is achieved, the imaging resolution is improved, amplitude distortion and phase distortion are reduced, and a clearer and more accurate target image is obtained.

The present application provides a liquid crystal lens, a lens module and a near-eye display device. The first substrate of the liquid crystal lens is arranged opposite to the second substrate, the liquid crystal layer is located between the first substrate and the second substrate, the first electrode is located on the surface of the first substrate facing the liquid crystal layer, and the second electrode is located on the surface of the second substrate facing the liquid crystal layer. The first electrode includes m electrode units, the m electrode units are arranged at intervals from each other, and the optical path difference of the optical path difference distribution curve of the liquid crystal lens corresponding to the width of each electrode unit is greater than zero and less than or equal to λ / n, wherein λ is the wavelength of the incident light, m ​​is a positive integer greater than or equal to 1, and n is a positive integer greater than or equal to 3, which helps to ensure that the liquid crystal lens has good diffraction efficiency. By changing the voltage value of the electrode unit, the tilt angle of the liquid crystal molecules can be adjusted, thereby changing the refractive index distribution of the liquid crystal lens, and realizing the change of the optical focal length of the liquid crystal lens to change the virtual image distance.

The utility model discloses a window-penetrating sighting device, and belongs to the field of sighting devices. The window-penetrating observing and aiming device comprises a shell, a lens group and a laser, the shell is provided with a groove in a first direction; the lens group comprises an objective lens assembly and an eyepiece assembly which are sequentially arranged on the shell along a light path; a groove is formed in the casing, a notch of the groove faces the laser, at least part of the laser is mounted in the groove, the laser comprises a casing and a transmitting device, a plurality of heat dissipation holes are formed in the casing, the casing is mounted outside the casing, and the transmitting device is arranged in the casing. The heat dissipation effect of the laser can be improved, the laser can keep a proper temperature during long-time work, the working stability of the transmitting device is improved, the performance of the transmitting device is prevented from being influenced by overheating, meanwhile, the influence of heat of the laser on the lens group can be reduced, the working stability of the lens group is improved, and the performance of the lens group is prevented from being influenced by overheating; meanwhile, interference of scattered light generated by the laser beams on mirror group imaging can be reduced, and the imaging effect is improved.

The invention discloses a high-specificity near-infrared fluorescent probe for imaging melanoma as well as a preparation method and application of the high-specificity near-infrared fluorescent probe, and belongs to the technical field of fluorescent probes. The near-infrared fluorescent probe provided by the invention starts a near-infrared fluorescent signal through cascade activation of glutathione and tyrosinase, so that interference of a false positive signal is avoided, and high-specificity imaging of melanoma is realized. Compared with the existing fluorescent probe, the fluorescent probe provided by the invention combines the detection of two related important biomarkers in the occurrence and development processes of melanoma, does not need to introduce a large-volume targeting group into a molecule, does not need to obtain a specific site through a large amount of screening, and has the advantages of high sensitivity, high sensitivity, high sensitivity and the like. The probe has the advantages of novel structure, high sensitivity, good imaging performance, high-specificity imaging of melanoma and the like, and provides a new way for accurate imaging diagnosis of melanoma.

The invention discloses a large-image-plane video small lens and a camera, and relates to the technical field of optical lenses, and the large-image-plane video small lens is provided with an object side and an image side which are oppositely arranged along the optical axis direction. The small video camera with the large image plane comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged from the object side to the image side. Wherein the first lens, the second lens, the fourth lens, the fifth lens, the seventh lens and the eighth lens are plastic aspherical lenses, and the third lens and the sixth lens are glass aspherical lenses; the resolution ratio of the large-image-plane video small lens is greater than or equal to 12M, the image plane height of the large-image-plane video small lens is phi, and the total optical length of the large-image-plane video small lens is TTL, 1lt; tTL / phi < = 1.5. The technical effects of large imaging surface, good imaging effect and small size are achieved through arrangement and combination of the eight lenses, material selection, surface type distribution and parameter design of the lenses.

The application discloses a kind of wide temperature range stable copper cluster scintillator and its preparation method and application, the scintillator chemical general formula is Cu4X4 (dppyme) 2, by introducing methyl in pyridine ring 6 position structure space constraint, induce to form long-range ordered crystal packing phase, significantly enhance the lattice rigidity.This material has the microcosmic energy level structure of thermal activation delayed fluorescence (TADF) and self-trapped excitor (STE) light emitting mechanism synergism, in-190 ℃ to 150 ℃ extremely wide temperature range, excellent radiation luminescence stability is shown.The application is prepared by room temperature solution method, and process is simple.The flexible film constructed using the material improves the mechanical stability by polymer embedding process, and the spatial resolution reaches 27.8 lp / mm, which is suitable for X-ray detection and imaging in extreme environments such as deep space exploration, polar scientific research and high-temperature industrial detection.

The invention discloses a portable X-ray machine for measuring osteoporosis, and relates to the technical field of medical equipment.The X-ray machine adopts 18-26 V wide-range low-voltage power supply, primary boosting is performed through a full-bridge inverter circuit and a high-voltage transformer, secondary boosting is performed through a single-side CW voltage doubling rectifying circuit, the output voltage ranges from 30 kV to 80 kV, and the tube current ranges from 0.1 mA to 1 mA. A pseudo dual-energy imaging technology is introduced, low-energy and high-energy X-rays are used for imaging respectively, artifacts are reduced through continuous multi-image taking and contrast synthesis, and the imaging quality is improved. And the overexposure risk of the CCD camera is reduced by adopting an accurate dose control and delayed exposure technology. And a glue sealing insulation design and a split type structure are adopted, so that the equipment volume is reduced, and the portability is improved. Through integration of multiple technologies, the portable X-ray machine which is efficient, safe, capable of reducing measurement errors and radiation cost is provided, and the portable X-ray machine is suitable for osteoporosis detection.