76results about How to "Accurate reference data" patented technology

The invention relates to the field of optical measurement methods, in particular to a distortion calibration method of a large-caliber optical camera. The distortion calibration method of the large-caliber optical camera resolves the problem that an existing angle measurement method is low in accuracy and has too many artificial factors. The method comprises the steps that a standard aperture mask is located at the image plane of a tested camera, the center of the standard aperture mask and the principal point of the tested camera coincide, a theodolite is located at the object space of the tested camera, and the rotary axis of the theodolite and the entrance pupil center of the tested camera coincide; a reticle of the theodolite is illuminated and is imaged through the tested camera; the image of the reticle and the scribed line of the standard aperture mask are observed by using a reading microscope, the theodolite is rotated to enable the reticle to be aligned at a scribed line pressing line of the standard aperture mask, the theodolite records spatial coordinates of each specific point and then transmits the spatial coordinates to a computer, a two-dimensional grid chart is automatically obtained in a fitting mode by two-dimensional grid chart fitting software in the computer according to the spatial coordinates of each specific point, and distortion values of different field angles of the tested camera are worked out. The distortion calibration method of the large-caliber optical camera can automatically generate the two-dimensional grid chart and the distortion values, is high in measurement accuracy and is not affected by artificial factors.

A method for controlling program evaluation system includes storing program to be evaluated in evaluation server, setting evaluation standard by evaluation management terminal, carrying out evaluation on each program by judges through evaluation terminal according to set evaluation standard, transmitting evaluation result back to evaluation server and carrying out statistics and analysis by evaluation server. The program evaluation system for said method is also disclosed.

The invention discloses a shape feature-based ultrasonic image bladder volume measuring method and device. The shape feature-based ultrasonic image bladder volume measuring method comprises the following steps: acquiring a two-dimensional bladder ultrasonic image; recognizing the shape of a bladder according to the two-dimensional bladder ultrasonic image; measuring the volume of the bladder according to the shape of the bladder. The shape feature-based ultrasonic image bladder volume measuring device comprises a two-dimensional bladder ultrasonic image acqusition unit for acquiring the two-dimensional bladder ultrasonic image, a bladder shape recognition unit for recognizing the shape of a bladder according to the two-dimensional bladder ultrasonic image and a bladder volume measuring unit for measuring the volume of the bladder according to the shape of the bladder. According to the shape feature-based ultrasonic image bladder volume measuring method and device, shape difference shown in different states by the bladder in clinical application is combined, the shape of the bladder is used as priori knowledge, the volume of the bladder is automatically calculated according to the current shape of the bladder, and the accuracy for measuring the volume of the bladder is improved.

The invention discloses a computer breast scanning automatic machine positioning system, wherein a self-rotation angle encoder is installed between every two neighboring mechanical arms, and is used for measuring a relative rotation angle in a space between two mechanical arms, and sending to a processor. A mechanical arm probe is connected with one of the end parts of multiple mechanical arms, and is used for scanning the breasts in the different space positions, and transmitting a scanned image to the processor. The processor is used for recording manual calibration left/right AP positions and a nipple image initial position, and according to the space relative rotation angle of each mechanical arm corresponding to the mechanical arm probe in each different space position, determining the image positions obtained by scanning in the different space positions and the displacement of the nipple in the image. The computer breast scanning automatic machine positioning system is capable ofaccurately, efficiently and automatically determining the image position in the scanning image obtained in a moving scanning process of the ultrasonic scanning probe and the nipple image displacementinformation, and the structure is simple, and the manufacturing cost is low.

The application discloses a method and system for tumor individualized clinical trial text mining. The method for the tumor individualized clinical trial text mining in the application includes the steps of (1) querying a preset clinical trial database according to to-be-tested object individualized information data, and screening clinical trial texts matching with the individualized information data; screening and obtaining the priority: disease type>gender>age>country>biomarker mutation information; (2) sorting the trial texts obtained from the screening in the step (1) into: gene mutation site complete matching>other gene mutation matching>gene matching>related gene matching; and (3) outputting the sorted trial texts, that is, individualized clinical trial texts. The method of the application can not only provide more and more accurate individualized treatment plans for the majority of patients and doctors; but also obtain more comprehensive, accurate and effective reference data, improve the accuracy and efficiency of individualized treatment plans, and save time and money.

The invention discloses a medical search engine system based on a block chain. The block chain search engine system comprises an operating system and a processing system, the operating system comprises a search setting unit, a search information setting unit and a search information screening unit; wherein the search setting unit is connected with the search information setting unit, the search information setting unit is connected with the medical data processing unit, the medical data processing unit is connected with the search unit, the search unit is connected with the medical data resultdisplay unit, and the medical data result display unit is connected with the search information screening unit; the processing system comprises a medical data processing unit and a medical data result display unit. Comprehensive search can be carried out in the whole system through a simple search program, search information is accurate, search time is saved, and a search user can use the systemconveniently.

The invention provides a method for identifying Batrachia individual information based on spectral features. According to the method, the Batrachia individual information can be distinguished and output according to Batrachia sound data collected in the outdoor environment, and the accurate reference data can be provided for richness research and individual trace research of Batrachia populations. The method comprises the following steps that firstly, a feature library is built, in the feature library, each tested Batrachia species corresponds to at least one record, each record comprises sample spectral feature values, and each spectral feature value represents the species, the gender, the health state, the courtship state and other features of the object corresponding to the spectral feature value; secondly, the tested data are processed; thirdly, comparison and judgment are performed on the tested data and the feature library.

The invention relates to a method for detecting paper honeycomb board core, belonging to the honeycomb paper board performance detection and application field, which comprises: using a detector to detect the solid modulus of a honeycomb paper core; building a relationship curve between standardized energy adsorption in unit volume and standardized stress; building an energy adsorption curve of approximate linear form; building a dynamic compression maximum acceleration speed static stress curve, under dynamic compression, analyzing the energy adsorption curve formed by connecting the shoulder points of the energy adsorption curve corresponding to the ratio between the thickness of the honeycomb paper board and the span, to obtain an energy adsorption picture for detecting the performance of the paper honeycomb board core. The energy adsorption picture of the invention can be applied for detecting the performance of paper honeycomb board core, to quickly and accurately optimize the structure and material selection of honeycomb paper boards, thereby providing accurate reference data for the manufacture of honeycomb paper boards under different conditions and realizing energy-saving high-efficiency package.

The invention provides a device and a method for measuring periphery muscle tension of a rat paw, wherein the measuring device provided by the invention comprises a paw fixing device, an expansion connecting device, a signal collecting device, a signal processing unit, a servo motor, a servo driver and a microprocessor, wherein the expansion connecting device is fixedly connected with the paw fixing device; the signal collecting device is respectively fixedly connected with the paw fixing device and the expansion connecting device and can be used for collecting voltage signals of the peripheral muscle tension of the paw; the signal processing unit is connected with the signal collecting device and can be used for converting the collected voltage signals to digital signals; the servo motor is fixedly connected with the expansion connecting device and can be used for driving the paw to rotate around an ankle; the servo driver is connected with the servo motor and can be used for controlling angular displacement and/or angular velocity in the rotation of a motor spindle; and the microprocessor can be used for generating corresponding electric signals according to preset angular displacement and/or angular velocity and sending the electric signals to the servo driver. According to the device and the method measuring the periphery muscle tension of the rat paw, the measurement on the periphery muscle tension of the rat paw is realized, and the technical problem that limb muscle tension of an experimental animal model cannot be measured accurately in the prior art is solved.

The invention discloses a system and method for realizing testing of a geophysical exploration digital packet, wherein the system comprises a digital packet testing device, and the method is as follows: the digital packet testing device is used for sending an analog signal to the digital packet to be tested and comparing the signal received from the digital packet to be tested with the analog signal for testing the signal transmission function of the digital packet to be tested; and the digital packet to be tested is used for taking the signal sent by the digital packet testing device as a downlink signal for receiving, and the received signal is taken as an uplink signal for sending to the digital packet testing device. By adopting the system and the method, the difficult problem of testing the geophysical exploration digital packet can be solved, the reliability and the stability in a seismic data acquisition system are improved and accurate reference data are provided for late-stage fine development of an oilfield, marine reservoir exploration and other applications.

The invention discloses a medical image classification method and system and a storage medium, which can be applied to the technical field of image classification. The method comprises the following steps: respectively segmenting sequence images, and constructing a target area three-dimensional image corresponding to a target area image obtained by segmentation; inputting the three-dimensional image of the target area into a full convolutional neural network model to obtain an image disease probability graph; inputting the image disease probability graph into a Bayesian neural network model to obtain a classification result and uncertainty corresponding to the medical image; generating a fitting curve of credibility and uncertainty intervals according to the classification results and uncertainty corresponding to all the medical images; when the fitting curve meets a preset requirement, determining an uncertain target interval; and determining that the uncertainty corresponding to the medical image belongs to an uncertainty target interval, and taking a classification result corresponding to the medical image as a target classification result. According to the invention, the classification result of the medical image given by the current classification algorithm can better conform to the actual situation.

The invention provides a tread pattern rigidity and friction characteristic testing platform and relates to the field of tire performance testing devices. The testing platform comprises a base, a support frame, a simulation pavement driving device, a sample fixture, a pressure detection device and a pressurizing device, wherein the support frame and the simulation pavement driving device are arranged on the base, and the simulation pavement driving device is used for clamping a simulation pavement and driving the simulation pavement to horizontally move; the sample fixture is arranged on a pressure output end of the pressurizing device, the pressurizing device is arranged on the support frame above the simulation pavement driving device and is used for pressurizing the sample fixture to generate a required pressure between a sample and the simulation pavement; the pressure detection device is arranged between the sample fixture and the pressurizing device and is used for transmitting the pressure and measuring stress data of the sample in real time; the support frame is used for supporting and fixing the pressurizing device. The tread pattern rigidity and friction characteristic testing platform has the advantages that the structure is simple, the use is convenient, the cost is low, and the measured data is accurate.

The invention provides a method and a system for determining the rain intensity of a corona cage raining device under a breeze condition. According to the method and the system, the method comprises:under the condition that wind exists, calculating the horizontal displacement of the raindrops under the action of horizontal wind; determining the positions of the water drops in the spray holes in the horizontal plane of the wire, determining the number of the spray holes for dropping the rain drops in the units with the same area divided by the horizontal line of the wire, and comparing the number with the number of the spray holes for dropping the rain drops in each unit in the absence of wind to determine the rain intensity of each unit in the horizontal line of the wire. According to themethod and the system, the inaccurate measurement result caused by monitoring the rain intensity only through 1-2 rain gauges under the corona cage in the prior art is well corrected. Therefore, themeasurement result is more objective and closer to the actual situation, more accurate reference data is provided for selecting a proper wire section and a configuration mode, and the environmental friendliness of power transmission and transformation engineering and the economical efficiency of engineering cost are facilitated.

The invention discloses a method for determining the peak load regulation contribution of grid-connected generating units based on statistical analysis. The method is characterized comprising steps of: determining the total load rate increase and decrease section of direct-regulated thermal power generating units and the increase and decrease load sub section of each generating unit participatingin the peak load regulation; determining that a generating unit makes a positive contribution to the peak load regulation of the whole grid when the load increase and decrease of the generating unit in the corresponding section is consistent with the load increase and decrease of the total load rate of the section, or determining that the generating unit makes a negative contribution to the peak load regulation of the whole grid when the load increase and decrease of the generating unit in the corresponding section is inconsistent with the load increase and decrease of the total load rate of the section. The method of statistical analysis evaluates and ranks the peak load regulation effects of different generating units fairly and objectively by using a peak load regulation contribution index so as to screen out the generating unit having the largest contribution during the peak load regulation of the grid. It is possible to accurately monitor and analyze the peak load regulation participation and performance of the peak load regulation generating units, so as to form a market mechanism for rewards and punishments of grid scheduling.

The invention relates to a 3D object detection method based on a monocular camera, and the method comprises the steps: building a depth estimation model which is used for obtaining a prediction depth map matched with original image data; obtaining original image data through a vehicle-mounted camera; acquiring a predicted depth map matching the original image data by using the depth estimation model; detecting a target object in the original image data; and projecting the target object to the corresponding predicted depth map to generate an anchoring area, and performing 3D reconstruction on the anchoring area to obtain a three-dimensional coordinate value of the target object in the world coordinate system. According to the 3D object detection method, the three-dimensional coordinate information of the object can be obtained only by means of the monocular camera, the invention does not depend on the assumed basis that the road surface is completely flat, the cost is low, the detection precision is high, accurate reference data can be provided for a driver, the driving safety can be improved, and the invention has important use value.

The invention provides a device for testing a geophysical exploration digital package, which comprises a signal receiving equalizing circuit, a first data signal conversion circuit, a control circuit, a second data signal conversion circuit and a signal pre-emphasis circuit, wherein the signal receiving equalizing circuit is used for performing signal equalizing on serial data received from the digital package to be tested; the first data signal conversion circuit is used for converting the serial data equalized by the signal into parallel data; the control circuit is used for outputting preconfigured analog parallel data to the second data signal conversion circuit, and comparing the parallel data converted by the first data signal conversion circuit with the analog parallel data so as to test the data transmission function of the digital package to be tested; the second data signal conversion circuit is used for converting the input parallel data into the serial data; and the signal pre-emphasis circuit is used for sending the serial data of the second data signal conversion circuit to the digital package to be tested after signal pre-emphasis processing is performed on the serial data. Through the device for testing the geophysical exploration digital package, more accurate and reliable reference data can be provided for the application of geophysical exploration.

The invention provides an infusion data processing system and method. The system comprises a dripping speed sensor, a dropping liquid recording module and a calculating module. The dripping speed sensor is used for producing level jump according to dropping liquid, the dropping liquid recording module is used for recording numerical values in the liquid dropping process, and the calculating module is used for calculating the liquid dropping speed, the dropping liquid residual capacity and the residual time. According to the system and method, infusion data is monitored, and the output level of the dripping sensor produces one jump every time liquid drops, so that the liquid dropping frequency is calculated, and the liquid dropping speed, the dropping liquid residual capacity and the residual time are obtained through conversion. According to the method, the calculation speed is high, the data calculation accuracy degree is high, and accurate reference data can be provided for treatment and abnormal judgment.

The invention discloses a connection method for an axial play measuring device for a horizontal roll of an edging mill. The connection method includes mounting the measuring device (30) to a mill housing (20) of the edging mill through a connector (10). By the connection method in the technical scheme, the contact measuring device can be mounted onto the mill housing of the edging mill, so that the axial displacement of the horizontal roll relative to the mill housing can be measured accurately and accurate reference data can be provided for the subsequent regulating operation.

The invention discloses a method for obtaining a standard parameter range of an adult Chinese rural dog electrocardiogram. The method comprises the following steps of (1) collecting electrocardiogramsignals of each lead; (2) performing filtering processing to obtain processing signals; (3) analyzing the processing signals to obtain parameters of P wave intervals, P wave amplitudes, QRS wave intervals, QRS wave amplitudes, T wave intervals, T wave amplitudes, PR intervals and QT intervals of each lead; (4) performing scatter diagram analysis on the parameters of step (3), and discarding the parameters with large dispersion; (5) calculating mean values and standard deviations of each parameter; (6) using a QT correction formula for correcting the parameters of the QT intervals; (7) correcting T wave data, and obtaining the standard parameter range of the adult Chinese rural dog electrocardiogram. The method establishes the basic data of the Chinese rural dog electrocardiogram for the first time, and fills the blank of the technical field.