36results about How to "Improve focus" patented technology

In estimation of an aberration in propagation of an ultrasonic wave from an aperture through an aberration path, the aperture is modeled as a plurality of sources and receivers. The frequency-domain magnitude of the aberration is estimated by normalizing the scattered signal power spectrum. The frequency-domain phase of the aberration is estimated by a recursion using cross spectra of signals at neighboring receivers.

The invention provides an automatic focusing method and device, suitable for the field of video technology. The method comprises the steps of obtaining an automatic focusing evaluation value of an interested area; setting parameters of the interested area; determining the weight of the automatic focusing evaluation value according to the parameters of the interested area; determining an automatic focusing statistic value of the interested area according to the automatic focusing evaluation value and the weight; and triggering an automatic focusing operation so that the automatic focusing statistic value reaches the maximum. According to the method, the weight of the automatic focusing evaluation value is determined according to the parameters of the interested area, then the automatic focusing statistic value of the interested area is determined according to the automatic focusing evaluation value and the weight, and thus the automatic focusing operation is trigged so that the automatic focusing statistic value reaches the maximum, thereby improving the focusing effect of the interested area in a video image, the coding quality of the interested area and the original image quality of video.

The invention relates to a teaching system and a teaching method. The teaching system comprises a system platform device for receiving teaching content selecting instructions, acquiring and sending corresponding contents to be taught according to the teaching content selecting instructions, receiving and displaying feedback data and receiving and sending control instructions corresponding to the feedback data, a network center device connected with the system platform device through a wireless network and used for receiving and outputting the contents to be taught, receiving and sending the feedback data to the system platform device and receiving and outputting the control instructions sent by the system platform device, a virtual reality display device connected with the network center device through the wireless network and used for receiving the contents to be taught output by the network center device, generating and displaying virtual teaching content scenes, acquiring and sending the feedback data to the network center device, receiving the control instructions output by the network center device and conducting display control on the virtual teaching content scenes according to the control instructions. The teaching system facilitates knowledge point knowing of students and effectively improves the learning efficiency.

A disposable eye piece system, including the eye piece and other disposable components, for a precision ultrasonic scanning apparatus is disclosed. The eye piece includes a fill port, a vent port and a drain port molded into the base of the eye piece. An RF Identification chip may be molded into the plastic base of the eye piece or, alternately into the conformable face seal of the eye piece. The components of a disposable eye piece system form an integrated disposable package that can be assembled, packaged, transported and used while maintaining the eye piece and saline solution in a sterile condition. The protective shipping container 1) protects the eye piece from damage, human contact and exposure to ambient air during shipping and storage and 2) allows the scanning physician or technician to attach the eye piece to the scanning machine without compromising the sterile condition of the eye piece.

A single higher-harmonic ultraviolet monochromatic light source comprises a 800nm high-field polarization laser, a beam shaper, a light energy controller, an optical phase modulator, a converging lens, a long-range interaction gas box, a metallic aluminum film, a vacuum chamber and the like. The single higher-harmonic ultraviolet monochromatic light source can generate single higher harmonic waves. The highly-monochromatic high-coherence ultraviolet radiation can be applied to high-precision processing and detection of micronano structures, as well as to the fields of high-precision holographic coherent imaging and the like, thereby being wide in application.

A reflectron (1) for deflecting an ion from a specimen in a time-of-flight mass spectrometer comprises a front electrode (2) and a back electrode (3). At least one of the front and back electrodes (2, 3) is capable of generating a curved electric field. The front and back electrodes are configured to perform time focusing and resolve an image of a specimen.

The invention discloses a beam synthesis method of a frequency diversity array radar based on non-uniform array element spacing, which comprises the following steps of: setting a transmission waveformof each array element; setting the waveform expression at each point in the airspace; adding the M waveforms together to obtain an array element emission direction graph expression; setting the arrayelement spacing of M array elements; And simulation is carried out against a meta-emission direction diagram to obtain the array element emission direction diagram. The invention solves the problem of distance and angle coupling well. By changing the spacing of the array elements, the array becomes a non-uniform linear frequency diversity array, which greatly improves the focusing effect, reducesthe focus error and makes up the defects of the traditional frequency diversity array.

The invention discloses a multiuser proportion fair scheduling system which comprises a base station, a plurality of terminals and a signal to noise ratio calculating module, wherein the base station comprises an average request rate recording and updating module, an average transmission rate recording and updating module, a pilot frequency symbol module, an instant request rate calculating module, a user selecting module and a data symbol module; wherein the user selecting module is used for calculating the priority coefficient of each user according to an average request rate recorded by the average request rate recording and updating module, an average transmission rate recorded by the average transmission rate recording and updating module, an instant request rate calculated by the instant request rate calculating module and an index parameter and selecting a user or a user set with a maximum priority coefficient as an alternative transmission user. The method of the system can guarantee the multiuser scheduling fairness of a closed loop MIMO (Multiple Input Multiple Output) system when the channel states of all users are obviously different. The invention also discloses a multiuser proportion fair scheduling method.

The invention discloses a radial fan-shaped magnetic focusing system for a radial beam traveling-wave tube, and belongs to magnetic focusing systems in the technical field of vacuum electron devices. A magnetic field distributed in the radial direction is generated by the focusing system, and the direction of the magnetic field is divergent in the radial direction, so that a radial component of the magnetic field and a moving trajectory of a radial electron beam are consistent, and the focusing effect of the focusing system on the radial fan-shaped electron beam is improved. According to the technical scheme, the radial fan-shaped magnetic focusing system for the radial beam traveling-wave tube comprises a permanent magnet with the cross section shaped like a rectangle and a pole shoe with the cross section shaped like a T, the permanent magnet is shaped like a fan, and the pole shoe is shaped like a fan. Due to the fact that the permanent magnet and the pole shoe are both designed to be of a fan-shaped structure, the direction of the radial magnet field generated by the radial fan-shaped magnetic focusing system is in a radial mode, the direction of the radial magnetic field is matched with the moving trajectory of the electron beam which runs in a radial mode, and the focusing effect of the focusing system on the electron beam is significantly improved.

In an optical system for forming a photoresist pattern on a substrate, an optical element such as a holographic optical element and an aperture plate provides an off-axis illumination beam having a hexapole. The photoresist pattern is formed to form structures such as contact pads, and includes first holes and second holes repeatedly arranged on the substrate. The hexapole includes four first poles symmetrically disposed with respect to an x-axis and a y-axis, and two second poles disposed in the x-axis so as to be symmetric with respect to the y-axis. The off-axis illumination beam may improve a resolution of the photoresist pattern and a depth of focus (DOF) of a light beam to be projected onto the substrate.

The invention belongs to the field of unmanned aerial vehicle remote sensing surveying. The invention discloses a jolt platform unmanned aerial vehicle-mounted SAR real-time imaging processing method.According to the unmanned aerial vehicle-mounted SAR real-time imaging processing based on a heterogeneous multi-core chip, digital down-conversion, distance pulse pressure and azimuth pre-filteringprocessing taking multiply-accumulate operation as a main body is executed by utilizing the advantage of high calculation efficiency of an FPGA, and the FPGA performs data distribution and task allocation according to DSP resources; the advantage of high programming flexibility of the DSP is utilized, jolt platform SAR imaging processing based on multi-level motion compensation is executed, the DSP end carries out motion compensation processing based on inertial navigation information, carries out motion compensation processing based on data, carries out image domain self-focusing processing and other motion error compensation technologies, high-resolution imaging of the jolt platform represented by the unmanned aerial vehicle is achieved, the hardware resource utilization rate is greatlyimproved, the focusing effect of SAR real-time imaging processing of the jolt platform is good, and the robustness is high.

A medical or cosmetic hand-held laser device with an optical waveguide device is subdivided into a first section and a second section arranged at an angle thereto for emitting laser radiation onto a treatment area. To deflect the laser beam from the first section into the second section as effectively as possible and in particular to launch the laser beam with the lowest possible loss into a waveguide that conducts the laser beam further, the hand-held device is provided with a reflector that is arranged between the two sections and has an essentially elliptical reflective surface.

The invention provides a large flat plate current gathering resistance measurement device and method applied to breast cancer. The large flat plate current gathering resistance measurement device comprises an upper current gathering electrode array and a lower current gathering electrode array, which are in parallel arranged up and down and have the same upper and lower surfaces, wherein electrode regions of the upper current gathering electrode array and the lower current gathering electrode array are semi-circles with the diameter of 160mm; electrodes are arranged according to a honeycomb; the outer diameter of the electrodes is 4.5mm and the distance between the electrodes is 1mm; 392 electrodes are distributed in each electrode region; the upper current gathering electrode array and the lower current gathering electrode array can rotate for 360 degrees and breasts can be measured at any angle; when the upper current gathering electrode array and the lower current gathering electrode array are used for measuring, a partition measurement manner is adopted; each 7 electrodes in the 392 electrodes form a region group; each electrode occupies a small region; the 7 electrodes form one region group; the electrodes are triggered from a certain small region, span across two small regions along the vertical direction of an edge, turn leftward or rightward for 60 degrees and then span across one small region so as to reach the same group of electrodes; the electrodes of the same small group are measured simultaneously for each time until all the electrodes are detected. According to the large flat plate current gathering resistance measurement device and the method provided by the invention, the sensitivity of disturbance regions in breast tissues of the electrodes can be improved.

The invention discloses a laser lighting system and a car laser lighting device thereof, and relates to the field of car lighting. A laser light source, a wavelength selection component and a wavelength conversion component are included; the wavelength conversion component is arranged between the laser light source and the wavelength selection component; the laser light source is used for emittingtrigger laser light to the wavelength selection component; the wavelength conversion component is used for emitting illumination fluorescent light when receiving the trigger laser light; the wavelength selection component is used for reflecting the trigger laser light and the illumination fluorescent light with the wavelength less than or equal to a first preset wavelength when receiving the trigger laser light and the illumination fluorescent light and transmitting the illumination fluorescent light with the wavelength larger than a second preset wavelength; and the second preset wavelengthis larger than the first preset wavelength. By means of the laser lighting system and the car laser lighting device, the trigger laser light can form stable white light without repeated path conversion, the transmission path of the light is relatively simple, the loss of the light during transmission is small, and the luminous efficiency of the laser lighting system is increased.

The invention discloses a wear particle surface reconstruction method based on a multi-focus image and a related device. The method comprises the following steps: acquiring a multi-focus image sequence of wear particles to be reconstructed; determining a division parameter corresponding to the multi-focus image sequence by adopting a differential evolution algorithm, and performing region division on each focus image in the multi-focus image sequence based on the division parameter to obtain a plurality of image blocks corresponding to each focus image; calculating the focus degree value of each image block obtained by division, and fusing the multi-focus image sequence based on the focus degree value of each image block to obtain a fused image; and determining a depth value of each pixel point in the fused image to obtain a reconstructed image corresponding to the wear particles to be reconstructed. According to the embodiment, the division parameters corresponding to the multi-focus image sequence are determined through the differential evolution algorithm, and the fused image block is selected based on the focus degree value of each image block obtained through division, so that the focus degree of the fused image block can be improved, and the definition of the reconstructed image can be improved.

The invention relates to a tracking and focusing method and device for a holder camera, the camera and a medium. The holder camera comprises a rotatable holder and a camera installed on the holder. The method comprises the steps that the rotation state of the holder is detected, when the holder is in rotation, if focusing is completed through an automatic focusing algorithm of a camera, focusing is conducted through a preset adjustment focusing algorithm, and when the holder is in non-rotation, focusing is conducted through a preset non-edge clear focusing algorithm. By adopting the method, the focusing effect of the holder camera in the tracking process and before and after tracking can be effectively improved.

The invention provides a docker-based continuous integration method, which comprises the following steps of: obtaining nodes to be packaged in a continuous concentration scene, and constructing a basic plug-in mirror image based on the nodes in the continuous concentration scene; basic configuration information of the target project is read, attribute information of all dimensions in the basic configuration information is read, and continuous integration is carried out based on the attribute information; the method comprises the following steps: reading node information configured on the basis of drone.yml; and constructing a corresponding node mirror image according to the basic configuration information and the node information in the form of docker in docker, and operating the mirrored node to realize the corresponding function of the node. According to the technical scheme provided by the invention, the problems of various configurations and low efficiency in current droneci integration are solved through an integrated plug-in processing mode, and in addition, drone.yml in each project only needs to be configured and used with a corresponding plug-in, research and development personnel do not need to pay attention to how to configure each step in a continuous integration process, so that the development efficiency is improved, and the development cost is reduced. The concentration of research and development personnel is improved, and the efficiency of continuous integration in project access and use is improved.

The invention relates to the technical field of microscopy for materials. The atomic beam microscope device comprises a gas storage tank, a gas pipe, a vacuum chamber formed by connection of a chamberI and a chamber II, an injector head, a shunt, a gas transmission window sheet, an atom diffraction plate, an atom diffraction plate through hole variety I, an atom diffraction plate through hole variety II, an atom diffraction plate through hole variety III, a detector I, a sample, a sample table, a computer, a detector II, an extraction opening I, a vacuum pump set I, an extraction opening II and a vacuum pump set II. According to the invention, for the atom diffraction plate, a series of through holes are adopted to replace the cyclic structure of a zone plate, the through holes are easierin processing than the cyclic structure without support of a standard fresnel zone plate, and the focusing effect of atomic beam current is optimized by selecting proper through hole diameter and through hole distribution, so as to obtain sharp focusing beam spots and inhibit diffraction of a higher order.

The invention aims to provide a Jenkins-based project management data processing method and equipment. The method comprises the following steps: creating a running environment of a continuous integration tool Jenkins; wherein the operation environment of the continuous integration tool, the project management system and the third-party communication platform are mutually independent; in a running environment of a continuous integration tool Jenkins, acquiring project management data corresponding to each project member under the target project from a management system through the continuous integration tool Jenkins, and summarizing the project management data to obtain comprehensive project management data of the target project; in an operation environment, comprehensive project management data of a target project is sent to a third-party communication platform at regular time through a continuous integration tool Jenkins, and the project management data is sent to the third-party communication platform shared by project members at regular time by creating the continuous integration tool, so that the problem that information is not focused due to scattered update data notifications is solved; the focus degree of project management data is improved, the communication efficiency among project members is enhanced, and the project cost is reduced.

The invention discloses a bending multi-stage rod ion focusing transmission component, which comprises a plurality of bending conductive rods distributed in central symmetry and forming a bending space structure, and a support base. Each bending conductive rod consists of a straight section and a bending section, wherein the straight section is a cylindrical structure or a conical structure, the bending section is a cylindrical structure or a conical structure, the top end face of the straight section is the bottom end face of the bending section, and the top end of the bending section converges to the central axis to form a centrosymmetrical distribution structure around the central axis. The bending space structure has large entrance aperture and small exit aperture. The field strength of the bending space structure can be further increased, and moreover, the size of the exit can be further reduced, and the ion focusing performance can be enhanced. Meanwhile, because the size of theexit is further reduced, the background of detection can be further reduced, and the overall sensitivity of detection can be improved. Because of the existence of the straight sections, an ion beam entering at high speed can be further stabilized for better focusing in next step.

The invention discloses a focusing method, a camera device and a storage medium, and the method is applied to the camera device, and comprises the steps: obtaining at least two paths of image data collected by the camera device for the same scene in a coarse adjustment process; processing the at least two paths of image data through corresponding evaluation modes to obtain at least two groups of first focusing evaluation operators corresponding to the at least two paths of image data; calculating operator change rates in the at least two groups of first focusing evaluation operators; and in the fine adjustment process, determining the optimal focusing position based on the same-path image data which is subsequently acquired by the camera device and corresponds to the maximum change rate and the corresponding evaluation mode. Through the mode, the operator change rates of different paths of data under the corresponding evaluation modes are obtained through coarse adjustment, the same path of image data corresponding to the maximum change rate in the fine adjustment process and the corresponding evaluation mode are used for determining the optimal focusing position, and the optimal focusing position can be accurately obtained to improve the focusing effect.

The invention provides a shooting method, which comprises the following steps: receiving a first signal sent by a shot object to determine the position information of the shot object; determining a target focusing position and a target focal length according to the position information; and focusing according to the target focusing position and the target focal length to generate a shot image. According to the shooting method, the shooting device, the terminal and the non-volatile computer readable storage medium, the position information of the shot object is determined by receiving the first signal sent by the shot object, the position of the shot object in the preview interface and the distance between the shot object and the shooting terminal can be rapidly determined according to the position information, and the shooting efficiency is improved. Therefore, the target focusing position and the target focal length can be rapidly determined, compared with the situation that the shot object is recognized through a complex recognition algorithm and the delay is high, the delay of the position information is low, the position information can be rapidly determined even if the shot object is in a moving state, and therefore the focusing effect is improved, and the quality of shot images is improved.

The invention provides a hepatobiliary surgery auxiliary operation device applied to the field of hepatobiliary surgery. The hepatobiliary surgery auxiliary operation device comprises a bed body, a Z-axis translation module, a mounting frame, an X-axis translation module, a winding module, a cleaning module, a control console and a voice recognition device. By arranging the winding module, surgical instruments can be automatically transferred and recovered according to desired instruments, and medical workers do not need to find the instruments, so that the concentration and efficiency of the medical workers during an operation are improved; the winding module is arranged to be of a structure that two wire rollers are controlled by a single motor, so that the number of arranged motors can be reduced, and meanwhile different suspension wires can be lifted and lowered; a connecting piece can be set to be in magnetic connection, so that the convenience of dismounting the surgical instrument can be ensured; the Z-axis translation module is arranged, so that the position of the mounting frame can be adaptively adjusted, and the interference of the mounting frame to a user is reduced; and meanwhile, the mounting frame is provided with a distance sensor, so that the mounting frame can be prevented from colliding with the human body in a moving process.

The invention relates to an eye region therapeutic instrument. According to the eye region therapeutic instrument disclosed by the invention, a massaging component is driven by a motor to massage locations where cornea is ragged caused by long-term work, of the eye region, and acupuncture and moxibustion is simulated through an acusector to perform therapy on the eye region, and photosensory cellsand periphery nerve tissue are activated for regeneration; the muscle strand development environment is improved, so that the development of a muscle strand is strong, and the movement is more coordinated and balanced; the eye cornea is recovered to be smooth, the blood flow of a visual photosensitive location is more sufficient, and the visual nerve is more developed, so that the focusing function of light ray is effectively increased, the difficult problems that in a traditional manner, the stress is not uniform caused by manual operations, muscle bodies are weary because of too long time,the operations are tedious and operations must be performed by professional staff are solved, labor cost is saved, and the effects of treating astigmatism and squint are also achieved.