46results about How to "Reduce the number of acquisitions" patented technology

The invention relates to a correction method of an LED display screen. The correction method comprises: sizes of modules for correction and a separated module collection mode of an LED display screen are determined; the LED display screen is controlled to be lightened and primary-color image collection is carried out, wherein each lightened correction module contains a plurality of controlled lightened same-color LED lamp points with continuous positions; according to the collected primary-color image, an initial brightness module or an initial brightness chromatic value of each lightened correction module is obtained and a brightness correction target value or a brightness chromatic correction target value is determined correspondingly; and on the basis of the initial brightness module or an initial brightness chromatic value of each lightened correction module as well as the corresponding brightness correction target value or a brightness chromatic correction target value, brightness correction coefficients or brightness chromatic correction coefficients of the multiple same-color LED lamp points in each correction module are obtained and are applied to the LED display screen. According to the invention, the number of LED lamp points for single-time collection is increased by using a separated module collection way and the number of times of image collection is also reduced; the correction time can be shortened; and the correction efficiency can be improved.

The invention belongs to the field of image identification, and particularly relates to a stick counting method and a stick counting device. The stick counting device comprises an image acquisition module used for acquiring an end face image of sticks, an image processing module used for processing the acquired end face image of sticks, an image identification module used for identifying the number of sticks based on the processed end face image of sticks, and a result output module used for outputting the identified number of sticks. The problem that manual counting is time-consuming and effort-consuming and causes a big chance of error is solved. The number of sticks can be obtained immediately with high accuracy.

The invention discloses a terminal device and a fingerprint identification method and device, and belongs to the field of a smart terminal. The terminal device comprises a processing chip, a fingerprint sensor and a temperature collection assembly. The processing chip is electrically connected with the fingerprint sensor and the temperature collection assembly. The processing chip is used for collecting a fingerprint signal through the fingerprint sensor and collecting a temperature signal through the temperature collection assembly, determining a compensation coefficient corresponding to the temperature signal, compensating the fingerprint signal according to the compensation coefficient and carrying out fingerprint identification according to the compensated fingerprint signal. The problem that the whole fingerprint identification process is relatively long due to the fact that in order to avoid an identification error of the fingerprint signal resulting from the environment temperature, the processing chip needs to adjust hardware parameters and processing algorithms continuously and collect the fingerprint signal for many times for identification is solved, the collection times of the fingerprint signal is reduced, the fingerprint identification process is simplified, and the fingerprint identification speed is accelerated.

Embodiments of the invention disclose a magnetic resonance imaging method and system. The method comprises the following steps: applying non-layering inverse pulses to a detected object; simultaneously stimulating multiple layers of a heart by using a preset imaging sequence in a set heart movement phase in a first heartbeat period, and acquiring a multilayer aliasing T1 weighted image of the heart; acquiring a reference image by using a preset imaging sequence stimulated by a preset overturning angle in a set heart movement phase in a second heartbeat period, wherein the first heartbeat period and the second heartbeat period correspond to a same breath-holding and are two adjacent heartbeat periods, and the reference image corresponds to one layer of the multiple layers; and performing the interlayer de-aliasing and phase-sensitive reverse restoration re-establishment for the multilayer aliasing T1 weighted image by using the reference image to obtain a target T1 weighted image of each layer of the heart. By virtue of the technical scheme, on the premise of ensuring the image quality, the magnetic resonance data acquisition efficiency can be improved.

The invention provides a perfusion scanning method. The perfusion scanning method includes steps of acquiring positioning images of to-be-scanned regions; accurately positioning the to-be-scanned regions according to the positioning images; dividing different scanning time frames according to efflux absorption curves of contrast agents, and performing perfusion scanning on the to-be-scanned regions at different intervals in the corresponding different scanning time frames. The perfusion scanning method has the advantages that the long scanning intervals are set in gentle change periods of the efflux absorption curves of the contrast agents, accordingly, acquisition frequencies can be reduced, and X-ray absorption dose of patients can be reduced; the acquisition frequencies are reduced, but change in the periods is gentle, and accordingly real time-density curves in the periods can be acquired only by the aid of a few samples. The invention in the technical scheme further provides a CT (computed tomography) perfusion scanning device.

The invention discloses a gamepad-based cloud game control method and system and a storage medium. The method comprises the following steps of obtaining preset configuration information; acquiring control information of a handle terminal; matching touch information of a cloud mobile phone corresponding to the control information of the gamepad terminal according to the preset configuration information; sending the touch information to a cloud server; and controlling the cloud game to respond to the touch information. According to the invention, control information of a gamepad terminal is firstly acquired; then, the touch information of the cloud mobile phone corresponding to the control information is matched according to the preset configuration information, then the touch information issent to the cloud server, and the cloud game is controlled to respond to the touch information, so that the touch information corresponding to the control information does not need to be collected additionally, the data collection frequency is reduced, and the delay time is shortened. The method can be widely applied to the technical field of cloud games.

The present invention relates to self-emission panel and a method of manufacturing the same to reduce an additional area in a self-emission panel substrate, ensure an acceptable number of divided substrates so as to reduce production cost. As a solvement means, the single self-emission panel is obtained by the following method: a plurality of sealed self-emission sections are formed on a mother support substrate, connecting sections formed with lead-out wiring portions led out from the self-emission sections are formed outside the self-emission sections on the mother support substrate; specifically, bent dividing lines for sectioning in parallel protrusion areas protruding from neighboring self-emission sections to form the connecting sections are set in areas between neighboring self-emission sections on the mother support substrate; further, hole processing portions are formed along partial or entire bent dividing lines, thereby making it possible to produce a plurality of unit self-emission panels simply by cutting along linear dividing lines.

The invention relates to the technical field of door lock security control, and in particular discloses an intelligent fingerprint door lock and a fingerprint record method thereof. The intelligent fingerprint door lock comprises a lock body and a mobile terminal, wherein the lock body is in wireless communication connection with a mobile terminal; the lock body comprises a fingerprint processing device and a mechanical lock; the fingerprint processing device is electrically connected with the mechanical lock. According to the intelligent fingerprint door lock provided by the invention, in the process that fingerprint information is acquired by using a fingerprint acquisition module of the fingerprint processing device, wrong fingerprint data are corrected, the fingerprint acquisition quality of users is improved, and the false rejection rate of fingerprint unlocking is reduced; meanwhile the fingerprint acquisition times are calculated by using a counter, by controlling the fingerprint acquisition times, and together with fingerprint acquisition posture instructions of the mobile terminal, fingerprint acquisition accuracy is further effectively controlled, and the false rejection rate of fingerprint unlocking is reduced.

The invention provides a method for managing user information, and a method and device for verifying identities. The method for managing user information comprises the following steps: sampling and tracking the trajectory of a user to obtain location information of the user, wherein the location information carries account information; determining the current raster area where the user is locatedaccording to the location information; acquiring the user information corresponding to the account information, wherein the user information comprises mode information; and updating the user information to a target raster server corresponding to the current raster area according to the mode information. The method improves the real-time performance of the rasterization management by sampling and tracking the location information of the user, updating the raster area where the user is located in time, and updating the user information in the raster server corresponding to the raster area in time.

The invention provides an image reconstruction method, device and equipment, and the method comprises the steps: determining a plurality of key point pairs based on N first light strip center lines in a first target image and N second light strip center lines in a second target image, and enabling the key point pairs to comprise first pixel points in the first light strip center lines and second pixel points in the second light strip center lines; for each first pixel point in the first light strip center line, determining a plurality of candidate matching points corresponding to the first pixel point from all the second light strip center lines, determining a texture fusion feature corresponding to the first pixel point based on the first texture image, and determining a texture fusion feature corresponding to each candidate matching point based on the second texture image; selecting a second pixel point corresponding to the first pixel point from the plurality of candidate matching points based on the texture fusion feature corresponding to the first pixel point and the texture fusion feature corresponding to each candidate matching point; and generating a three-dimensional reconstructed image based on the three-dimensional points corresponding to the plurality of key points. According to the scheme, the problem of mismatching of multi-line laser is solved.

The invention provides a method for increasing image data dynamic range of image acquisition systems. The method comprises the steps of receiving a signal from a detector circuit, subjecting the received signal to integral amplification, performing A / D conversion to the signal subjected to the integral amplification and storing a combination of a system parameter value and an A / D conversion result together as image data. In addition, the invention also provides an image acquisition system and a ray inspection system comprising the image acquisition system.

The embodiment of the invention provides a pointer type instrument identification method and electronic equipment, and relates to the field of image processing. A processor processes a pointer type instrument image to obtain an intersection point of a pointer and a dial in the pointer type instrument image, and the reading of a pointer type instrument is determined through the position of the intersection point on the dial; compared with a manual reading mode in the prior art, the manual cost is reduced, and the reading efficiency of the pointer instrument is improved. Compared with the priorart that a large number of sample images of the pointer type instrument are needed when the pointer type instrument image is read through the neural network, the method can achieve the obtaining of the scale value pointed by the pointer in the pointer type instrument image without a large number of samples, and improves the recognition efficiency.

The invention relates to a maintenance method for tree seedlings, in particular to a crossbreeding method for paper mulberry. The crossbreeding method comprises the following steps: (1) preparing a paper mulberry pollinating device; (2) artificially pollinating a male parent and a female parent, sowing and cultivating after the fruit is mature; (3) artificially pollinating a novel generation of hybrid paper mulberry, sowing and cultivating after the fruit is obtained; and (4) scientifically managing the newly grown seedling. The crossbreeding method solves the problems of allergic reaction of a pollen collecting worker and blockage of a nozzle of a pollinator caused by excessive pollens in the artificial pollinating process.

The invention relates to a yarn monitoring device and a yarn winder. The yarn monitoring device (15) includes a sensor unit (35), an obtaining section (55), a setting section (58) and an evaluation section (53). The sensor unit (35) outputs a detection value corresponding to the presence / absence of the yarn (10) in the detection area (36) and / or a state of the yarn (10). The obtaining section (55) obtains the detection value in a state in which no yarn (10) exists in the detection area (36). The setting section (58) sets an evaluation reference value based on at least one of a plurality of detection values which are obtained by repeating the detection of the detection value by the obtaining section (55) until the yarn (10) is inserted into the detection area (36).The evaluation section (53) evaluates the state of the yarn (10) based on the evaluation reference value set by the setting section (58).

The embodiment of the invention discloses a single event dead time detecting method and device suitable for a PET system in which a scintillation crystal comprises an intrinsic radionuclide. The method comprises obtaining first data after empty scanning, and then obtaining the second data after radioactive source scanning, wherein the data after the empty scanning is the data corresponding to theintrinsic radionuclide decay, and the energy region of the radioactive source decay is different from the energy region in the first data of the intrinsic radionuclide, thus, the energy region for counting of the intrinsic radionuclide can be distinguished in the data after the radioactive source scanning, so that a count rate corresponding to the intrinsic radionuclide decay after the radioactivesource scanning can be obtained, and the photon count rates generated by the same decay after the two scans are the same. Through the first data and the second data, a single event dead time can be obtained. The method needs fewer acquisition times and shorter time, and the operation is simple, and the utilization efficiency of the PET system is improved.

The embodiment of the invention discloses a single event dead time detecting method and device suitable for a PET system in which a scintillation crystal comprises an intrinsic radionuclide. The method comprises obtaining first data after empty scanning, and then obtaining the second data after radioactive source scanning, wherein the data after the empty scanning is the data corresponding to theintrinsic radionuclide decay, and the energy region of the radioactive source decay is different from the energy region in the first data of the intrinsic radionuclide, thus, the energy region for counting of the intrinsic radionuclide can be distinguished in the data after the radioactive source scanning, so that a count rate corresponding to the intrinsic radionuclide decay after the radioactivesource scanning can be obtained, and the photon count rates generated by the same decay after the two scans are the same. Through the first data and the second data, a single event dead time can be obtained. The method needs fewer acquisition times and shorter time, and the operation is simple, and the utilization efficiency of the PET system is improved.

The invention discloses a living body acquisition rolling and flat printing fusion acquisition fingerprint method and relates to the fingerprint identification technology field. In the method, fingerprints of different positions of fingers are collected in steps and finally a complete finger fingerprint is acquired. During an acquisition process, for a person whose fingerprints need to be collected, a difficulty of rolling the fingers is reduced, handleability of fingerprint acquisition is increased, and a problem that collected fingerprint quality can not be guaranteed because finger edges are not sufficient, a force is not uniform, rotation is not coherent and so on is solved. The collected fingerprint quality is greatly increased. In addition, during one acquisition, a flat printing fingerprint and / or a rolling fingerprint can be acquired simultaneously. In the prior art, the flat printing fingerprint and the rolling fingerprint need to be collected for two times. Therefore, in the invention, an acquisition frequency of the flat printing fingerprint and the rolling fingerprint is reduced by half.

The embodiments of the present invention relate to a display module calibration method, device and system. The method includes, for example: i) controlling a plurality of unit blocks of the display module to be calibrated to display a plurality of calibration images in the first gray scale by lighting up the blocks; ii) controlling an image acquisition device to acquire the plurality of calibration images. image, to obtain the first color data under the first gray scale; iii) calculate the color data of the display module to be corrected under at least one second gray scale according to the first color data and at least one color difference set, so as to obtain at least one second color data; and iv) generating a plurality of correction data under a plurality of different grayscales according to the first color data, the at least one second color data and the set correction target values, so as to obtain corresponding Calibrate the multi-grayscale calibration data of the display module. The embodiment of the present invention can achieve the technical effect of better display uniformity under different gray scales. In addition, the embodiments of the present invention also relate to a method and device for calibrating a display screen.

The invention discloses a fast color fringe pattern phase demodulation algorithm and system, and the method comprises the steps: firstly carrying out the pre-calibration of a measurement system through a calibration flat plate, and solving a coupling strength coefficient; secondly, using the system to respectively project a uniform intensity graph and a color fringe graph to an object to be measured, after the two graphs are respectively decoupled, using the uniform intensity graph to solve a background item and a modulation degree, and performing background removal and color normalization on the color fringe graph to obtain three background-free and color-normalized fringe patterns; adopting a phase shift method to solve demodulation phases of the three fringe patterns; and finally, unwrapping the obtained demodulation phase to obtain an unwrapped phase. The phase shift method demodulation of the single color fringe pattern is realized after background item calibration, the robustness of the demodulation of the traditional gray phase shift method is reserved, the fast phase demodulation is realized, and the requirement of dynamic three-dimensional shape measurement is met.

The invention relates to a fingerprint acquisition module, a middle frame, terminal equipment and a manufacturing method of the terminal equipment, and the fingerprint acquisition module comprises a supporting assembly which is provided with a groove, wherein the opening area of the groove is larger than or equal to the bottom area of the groove; and a fingerprint acquisition assembly which at least comprises a first part attached to the side wall of the groove and is used for acquiring a detection signal reflected by a target object through the opening and generating a fingerprint image based on the reflected detection signal. According to the embodiment of the invention, the fingerprint acquisition module can acquire more detection signals, and the acquisition efficiency is improved.

The invention relates to an idle conference room detection method based on an integral algorithm, and the method specifically comprises the steps: S1, obtaining a reservation request, and generating a conference room reservation table; S2, detecting whether the conference room is idle or not, if not, turning to S3, and if yes, ending; S3, judging whether the conference room is a video conference or not, if so, turning to S4, and otherwise, turning to S5; S4, judging whether video connection exists or not, if not, turning to S5, and if yes, obtaining conference room images shot by a camera in the conference room at regular time, and turning to S6; S5, acquiring conference room audio recorded by a loudspeaker in the conference room at regular time, and turning to S6; S6, setting the basic integral as 0 point, detecting whether the image and the audio of the conference room change in continuous time, if so, increasing the integral by 20 points, otherwise, keeping the integral of the conference room unchanged, judging whether the integral reaches 60 points, and if so, adjusting the use condition of the corresponding conference room to be idle. Compared with the prior art, the method has the advantages of improving the utilization rate of the conference room, and being low in cost and development amount.

The invention relates to a method for correcting an LED display screen, comprising the steps of: determining the size of a calibration module of the LED display screen and the acquisition mode of each module; The calibration module includes a plurality of LED points of the same color that are controlled to be lit and have continuous positions; the initial brightness value or initial brightness and chromaticity value of each calibration module that is controlled to be lit are obtained according to the collected primary color image and determined accordingly brightness correction target value or brightness and chroma correction target value; The brightness correction coefficient or brightness correction coefficient of the LED light point of the same color is applied to the LED display. The present invention adopts the acquisition method of each module to increase the number of LED lamp points in a single acquisition, reduce the number of image acquisitions, shorten the correction time, and improve the correction efficiency.

The invention provides a circuit breaker topology network identification method, a circuit breaker, a device and a system, and relates to the technical field of low-voltage electric appliances. The method comprises the following steps: sequentially sending a control instruction to a plurality of circuit breakers according to a preset time interval, wherein the control instruction is used for instructing the circuit breakers to send topology signals; recording the time of sending the control instruction, wherein the time is used for indicating the sending time of sending the topology signal by the circuit breaker; sending a reading instruction to the plurality of circuit breakers; receiving record data fed back by the plurality of circuit breakers according to the reading instruction, wherein the record data comprises identification time when a topological signal of a lower-level circuit breaker is identified; and identifying and acquiring the topological network according to the recorded data and the locally recorded sending time. By recording the topology signal identification time of each subordinate circuit breaker in the circuit breaker and locally recording the topology signal sending time of the circuit breaker in the upper computer, the frequency of data acquisition from the circuit breaker by the upper computer can be effectively reduced, and the identification efficiency of the circuit breaker topology network is effectively improved.

Embodiments of the invention provide a screen watermark processing method and apparatus. The method comprises the steps of obtaining a process list, which is running and needs to be protected, in a system; obtaining a watermark module, creating one or more top-layer full-screen watermark windows according to the watermark module, and hiding the top-layer full-screen watermark windows; and enumerating all current top-layer windows in system windows, obtaining top-layer visible windows according to the current top-layer windows, and if it is judged that any of processes corresponding to the top-layer visible windows is in the process list, displaying the top-layer full-screen watermark windows. The apparatus is used for executing the method. According to the method and the apparatus, the top-layer full-screen watermark windows are created; the processes corresponding to the top-layer visible windows are enumerated; and if it is judged that the process corresponding to the current top-layer visible window is in the process list needed to be protected, the top-layer full-screen watermark windows are displayed, so that the use of a global message hook is avoided and the system operation efficiency is improved.

The invention discloses an anomaly detection method of a sudden crowd based on instantaneous energy, the method of extracting motion feature points based on pixel statistical analysis is used to extract the feature points of the image motion region, and the kinetic energy is used as the basic energy feature of the crowd, and the instantaneous energy feature of the crowd motion state is extracted based on the kinetic energy difference between two consecutive frames of the energy block, so as to detect the human sudden crowd anomaly. The anomaly detection method of the sudden crowd can not onlyeffectively reduce the number of obtaining motion feature points so as to avoid subsequent processing of some meaningless feature points, but also can reflect the texture feature of the foreground motion region and the distribution of the crowd density, which makes the extracted motion feature points more representative and uniform. Whether in the abnormal occurrence of the response speed or the description of the movement of the crowd state changes, the above-mentioned outburst crowd anomaly detection methods have shown outstanding advantages.

The invention relates to a yarn monitoring device and a yarn winder. The yarn monitoring device (15) includes a sensor unit (35), an obtaining section (55), a setting section (58) and an evaluation section (53). The sensor unit (35) outputs a detection value corresponding to the presence / absence of the yarn (10) in the detection area (36) and / or a state of the yarn (10). The obtaining section (55) obtains the detection value in a state in which no yarn (10) exists in the detection area (36). The setting section (58) sets an evaluation reference value based on at least one of a plurality of detection values which are obtained by repeating the detection of the detection value by the obtaining section (55) until the yarn (10) is inserted into the detection area (36).The evaluation section (53) evaluates the state of the yarn (10) based on the evaluation reference value set by the setting section (58).