35results about How to "Solving Imaging Problems" patented technology

The invention provides an all-solid-state planar array three-dimensional imaging laser radar system, which comprises a detection target, a laser planar array data acquisition and point cloud generating module, and a data processing system, wherein the detection target is installed on a butting surface of a all-solid-state planar array three-dimensional imaging laser radar, so that a pulse laser signal transmitted by means of the laser radar for tracking the detection target returns in the original path, a reception and detection system of the laser radar completes the searching and capture ofthe detection target, acquires relative distance and position measurement parameters of the detection target in real time and acquires a plurality of feature points of the detection target in a laserirradiation range of the detection target and the laser radar, and the feature points are set in an optical field of view region with a fixed divergence angle; the laser planar array data acquisitionand point cloud generating module completes the measurement of the detection target and the depth data generation of the feature points, and transmits the depth data to the data processing system; andthe data processing system calculates azimuth information according to the depth data of each feature point and pixel positions in the field of view region, calculates angle and distance data and calculates attitude data of the detection target.

The invention discloses an MIMO radar imaging method on condition of array element failure. A fine random disturbance amount which obeys Gaussian distribution is superposed on a line element that corresponds with a failure array element position in an MIMO radar echo signal matrix. Matrix filling technology can be used for recovering a non-uniform sampled MIMO radar echo data matrix to a complete uniform sampling data matrix. Then an iterative weighting lq least method is used for estimating an objective scene vector. Because the echo data of the failed array element are not effectively utilized, a relatively large error exists in the reconstructed objective scene, thereby reducing the imaging quality of the object. For further improving the reconstruction precision of the objective scene vector, lost object receiving data of the failure array element are reconstructed by means of the coarse estimated value of the objective scene vector and a perception matrix. Then a matrix filling method and an iterative weighting lq least method are utilized for obtaining a high-precision objective scene vector estimated value, thereby settling an MIMO radar imaging problem on condition of array element failure.

The invention provides a display device and a manufacturing method thereof. The display device comprises a cover plate, a polarizer, a touch layer, a light-emitting panel and a refraction layer, wherein the cover plate comprises a display area and a non-display area, and the non-display area comprises a camera light receiving area; and the refraction layer is arranged between the touch layer and the light-emitting panel and used for irradiating light emitted by the light-emitting panel and irradiated to the light receiving area of the camera to other areas. According to the embodiment of the invention, the refraction layer is arranged between the touch layer and the light-emitting panel, and the light irradiated to the light receiving area of the camera is irradiated to other areas, so that the problem that imaging of the camera is influenced due to light leakage from the side surface of the opening position is solved.

The invention discloses imaging and tracking of interaction between proteins in living cells by utilizing bimolecular fluorescence complementation technology based on a self-linkage label, and revealsan interaction relation between the proteins and explores that a dynamic behavior of an interaction compound is already become a hot spot for proteomics research. The interaction between proteins forms a basis of cellular activity. An existing method for researching the interaction of the proteins do not simultaneously have the characteristics of living cells, high temporal-spatial resolution, single molecules and the like, and therefore, a new method for making and tracking the interaction between the proteins needs to be developed. The invention discloses a method for novel marking the interaction compound of the proteins by adopting the bimolecular fluorescence complementation based on the self-linkage label. The self-linkage label is split into two parts at the proper site, and two proteins having the interaction effect are fused respectively, and due to the interaction of the two proteins, the split self-linkage labels are pulled spatially and closely so as to form a complete self-linkage label; by adding dyes, the interaction compound can give out fluorescent light. The novel marking method utilizing the bimolecular fluorescence complementation based on the self-linkage label is widely applied to cell biology, and single molecular horizontal detection and tracking on the interaction of the pair of proteins in the cells in a high temporal-spatial resolution manner can berealized.

The invention discloses a CS adapter ring fixing structure for a high-definition video camera. The high-definition video camera comprises a shell, a front camera panel, a CS adapter ring, a charge coupled device (CCD) chip, a CCD circuit board, an optical filter mounting plate, a camera mainboard and a rear camera panel. A lug boss is arranged on the bottom periphery, corresponding to one side of the inner direction of the high-definition video camera, of the CS adapter ring, and has a diameter greater than that of external threads of the CS adapter ring. In the video camera, the optical filter mounting plate is fixed with the front camera panel, and is pressed against the bottom of the CS adapter ring. The CS adapter ring is securely limited at a mounting position by the lug boss of the CS adapter ring and the optical filter mounting plate so as not to move to further ensure connection security between a CS lens and the video camera and solve imaging problems caused by the shake of the video camera.

The invention discloses a single-frequency radar imaging method for a spinning target. The method comprises steps as follows: obtained radar echoes of a target in all azimuth angles are divided into N sub-apertures, and Fourier transform is performed on the radar echoes in each sub-aperture, so that lateral distribution of scattering intensity in each sub-aperture is obtained; RADON inverse transformation is performed on the lateral distribution of the scattering intensity in the N obtained sub-apertures, and a first image of the target is rebuilt; a second image of the target is rebuilt with the CLEAN algorithm according to the rebuilt first image of the target. According to the method, the imaging problem of wide-angle continuous wave radar echoes can be solved, and the imaging problem of the spinning target can also be well solved. The method has the higher practical value in detection and identification of the radar target.

The invention discloses a Fresnel lens based large-diameter terahertz imaging system. The imaging system comprises a system shell, a scanning light path and a detector, the scanning light path and the detector are arranged in the system shell, and a Fresnel lens is adopted in the scanning light path. The imaging system has the advantages that improvement in a conventional refraction type scanning imaging system is performed on the basis of the Fresnel lens, so that high resolution ratio and imaging quality can be achieved, and the improved imaging system is simple to process and compact in structure and has much higher sensitivity than the conventional refraction type scanning imaging system.

The application discloses functional nanometer material-antigen composite nanoparticles and a preparation method and application thereof. The composite nanoparticles comprise a functional nanometer material and an antigen. The preparation method is simple, the defect that a free antigen is weak in immunogenicity to cause that ideal tumor immune efficacy cannot be achieved, is overcome, and the problem that at current, imaging and tumor immunotherapy are separate, can be solved. The dual purposes of fluorescent imaging or magnetic resonance imaging and tumor immunotherapy can be achieved.

The invention provides an all-weather vehicle-mounted visual system and an all-weather vehicle-mounted visual method adapting to a complex illumination environment. The vehicle-mounted visual device comprises a main control chip, a camera and a displayer, the camera and the displayer are connected with the main control chip, and the main control chip comprises a data processing center, a lens control unit, an image sensor control unit, an image transmission control unit and an image processing control unit. By adjusting the focal length and the aperture of the camera, imaging adapting to bright and dark, long-distance and large-view scenes at the same time is achieved; and meanwhile, the camera and the main control chip are comprehensively controlled, so that the imaging problem of high dynamic and rainy and foggy scenes under dark light is solved, and the user experience is greatly improved.

The invention is suitable for the technical field of chip defect detection, and provides a generative adversarial network and computer-generated holography-based chip defect detection method, which comprises the following steps of: collecting object light wave amplitude and phase information of a defect-free chip, processing the obtained data to obtain a fringe sorting diagram, then forming a gray-scale computer-generated hologram through gray-scale value coding; loading the gray-scale computer-generated hologram in a spatial light modulator, placing the spatial light modulator in a light path meeting a set requirement, and generating a dynamic reconstructed holographic projection image through a light diffraction effect; training the GAN network by using the gray-scale computer-generated hologram; and inputting the gray scale computer-generated hologram of the to-be-detected chip into the trained GAN network, and outputting a detection result. The method has the beneficial effects that the problems of 3D modeling and imaging of the miniaturized chip are solved, the influence of environmental factors and the actual cost in the optical process are reduced, and the chip detection is relatively high in detection speed.

The embodiment of the invention provides a heat dissipation device of a CT detector and a CT machine, and relates to the technical field of device heat dissipation. The heat dissipation device of the CT detector comprises a base, a shell, a guide rail, an X-ray prevention structural part and a fan assembly. The shell is fixedly installed on the base, a circuit board installation groove and a plurality of air outlets are formed in the side face of the shell, and the base is fixedly installed on a rotor of the CT machine; the guide rail is mounted on the base, and the guide rail, the shell and the base form a closed structure; the X-ray preventing structural member is mounted on the air outlet of the shell; the fan assembly is installed on the shell. The heat dissipation device of the CT detector can realize the technical effect of X-ray protection on the basis of ensuring the heat dissipation efficiency.

The invention provides a self-adaptive terahertz three-dimensional tomography device and method. The device comprises an upper computer, a terahertz three-dimensional tomography host, a terahertz lens, a mechanical arm controller, a mechanical arm and a binocular vision system. The terahertz three-dimensional tomography host is respectively connected with the upper computer and the terahertz lens; the terahertz lens is arranged at the tail end of the mechanical arm and can synchronously move along with the tail end of the mechanical arm; the binocular vision system is connected with the upper computer, the binocular vision system is used for transmitting the 3D model of the measured object to the upper computer, and the upper computer generates path planning data of the motion trail of the mechanical arm; the mechanical arm controller is connected with the upper computer and the mechanical arm. The mechanical arm controller can obtain rotary encoder signals representing angle information of all shaft motors of the mechanical arm and upload the rotary encoder signals to the upper computer. The mechanical arm and the terahertz three-dimensional tomography system are combined, so that the imaging problem of a curved surface object can be effectively solved, and the working dimension is improved from two dimensions to three dimensions.

The invention discloses a lens treatment process for a zoom LED lamp. The method specifically comprises the following steps that S1, quartz sand is used for carrying out sand blasting treatment on theouter side curved surface or plane of the lens, and after treatment is completed, dull polish treatment is carried out on the protruding parts of the corners of the lens, so that the surface roughness of the outer side curved surface or plane reaches 30-45 microns, and the surface roughness of the protruding parts of the corners of the lens reaches 100-150 microns; and S2, the lens is put into apolishing solution for polishing treatment, and scratches caused by medium sand blasting or dull polish on the surface of the lens are polished away. According to the invention, the outer side curvedsurface or plane of the lens is subjected to sand blasting treatment, so that light spots irradiated by the LED lamp are uniform and have no obvious boundary, and the convex parts at the corners of the lens are frosted to reduce the refraction of the convex parts at the corners to light, thereby removing more than 98% of obvious light spots on the lens, avoiding the imaging problem of the light spots at the corners after the LED lamp is zoomed, and reducing the generation of the light spots.

The invention belongs to the technical field of machine vision, and particularly relates to a frosted glass inner layer two-dimensional code recognition device and an application method thereof. The frosted glass inner layer two-dimensional code recognition device comprises a shooting device, a polarizer, a polaroid and a light source device; and the central axis of the shooting device, the central axis of the polarizer, the central axis of the polaroid and the central axis of the light source device are located on the same vertical line; the light source device is used for emitting high-brightness linear polarized light, the polarizer is movably arranged at one end of the shooting device, and the polaroid is arranged on the upper end face of the light source device. By adopting a polarization method, the imaging problem of the frosted glass inner layer laser etching code point interfered by the frosted glass background is effectively solved, the gray scale contrast ratio of the two-dimensional code point and the frosted glass background is improved, the two-dimensional code is more easily and stably read successfully, the code reading time is shortened, the visual code reading rate is further improved, and through reading of code reading software, the requirement of large variability of industrial products can be met, and the code reading accuracy can reach 99.95%.