45 results about "Visual estimation" patented technology

A method for identifying a blur profile of a multi image display with a first image separating mask. The method comprises displaying a calibration pattern through a second image separating mask, allowing an evaluator to provide a visual estimation indicating a blur brought about to the calibration pattern by the second image separating mask, and generating a blur profile of at least the first image separating mask according to the visual estimation. The first and second image separating masks having a substantially similar optical profile.

The invention provides an X-ray diagnostic system and an X-ray image shooting method. The X-ray image shooting method comprises the steps that firstly, orientation parameters including height data of a basis point part of a certain specific part of a diagnosis object is taken as the reference to acquire orientation parameters including position height data of the to-be-detected part, and a shooting position from the X-ray image shooting device to the to-be-detected part is adjusted based on the orientation parameters. The X-ray diagnostic system comprises an X-ray image shooting unit for shooting the X-ray image on the to-be-detected part of the diagnosis object, a basis point part height measurement unit for acquiring the basis point part height data of the diagnosis object, a to-be-detected part orientation analysis unit for acquiring the orientation parameters of the to-be-detected part based on the basis point part height data, and an X-ray image shooting position shooting control unit controlling an X-ray generator and/or detector to move to the to-be-detected part. According to the X-ray diagnostic system and the X-ray image shooting method, positioning of the X-ray generator and/or detector is automatically controlled through the shooting control unit so as to replace detector positioning adjustment through artificial visual estimation, the X-ray image shooting process is simplified, and the shooting efficiency is improved.

The invention discloses polysaccharide polymer water plugging gel which is prepared from the following ingredients by mass: 2.5 to 5 percent of a main polysaccharide agent, 1 to 2 percent of a cross-linking agent, 1 to 3 percent of a cosolvent, 0 to 10 percent of a gelatinizing regulator, and the balance of water, and is prepared according to the following steps: preparing a water plugging gel system according to the proportion; sealing the water plugging gel system; putting the water plugging gel system into a 35 to 130 DEG C oven for gelatinizing; controlling the gelatinizing time to be 6 to 72 hours according to different concentrations of the ingredients and different mineralization degrees of an aqueous solution; judging the gelatinizing time according to a visual inspection coding method, that is, gelatinizing is stopped when final set strength reaches rigid gelatinizing I level, and dehydration shrinking does not happens in 90 days after the water plugging gel system is gelatinized. According to the invention, the gel system is wide in temperature application range, and can be used for not only high-temperature reservoir water plugging operation, but also low-temperature reservoir water plugging operation; the final set strength can reach visual estimation code I level; the long-time stability is excellent; the gel system is biodegradable.

The invention relates to an offset printing output ink quantity reset method. The present preset method is carried out by depending on experience and visual estimation, so tremendous waste is caused. The method of the invention firstly partitions digital images, computes the image-text area coverage rate of each partition area, and determines the set value of the rotating angle of an ink fountain roller according to the image-text area coverage rate value of the partition area which has the largest image-text area coverage rate in the digital images; then the method presets the printing ink of an inking system, simulates the printing ink delivery under the condition that a distributing roller does not move or moves, builds an equation set, compares the difference between the average ink thickness of each partition area of a simulated printed sheet and the standard ink thickness required by the practical printing, adjusts the given ink fountain roller to output the ink quantity, and after feedback adjustment and sequential approximation, the output ink quantity of the ink fountain roller after the last adjustment is converted into the ink key setting value. The method of the invention controls the whole output ink quantity through changing the rotating angle of the ink fountain roller, and controls the output ink quantity of each ink area through separately controlling the ink key of each ink area.

The invention provides a quantification method and system for composition of macerals in rocks, and relates to the technical field of energy exploration. The system comprises an optical microscope, animage acquisition device and an image processing device, wherein the image acquisition device is configured to acquire a plurality of pieces of image information of an optical plate under the opticalmicroscope, and the optical plate is from the rocks; and the image processing device is configured to determine the proportional value of the macerals in the total volume of the rocks according to the image information. The quantification method and system for composition of the macerals in the rocks realize the quantification process for composition of the macerals of organic petrology, enhancepracticality and solve the problem of errors existing in visual estimation methods and pixel counting methods in the prior art.

The invention relates to a road adhesion coefficient interactive estimation method based on vision and dynamics. The method comprises the following steps of: S1, acquiring a road image in front of a vehicle in a driving process; S2, inputting the road image into a trained road classification model to obtain a front road type; S3, according to the front road type and the mapping relationship between the road type and a road adhesion coefficient, acquiring a road adhesion coefficient visual estimation value theta yimage; S4, acquiring dynamic information of tires in the vehicle driving process;S5, acquiring a current road peak adhesion coefficient estimation value theta y by utilizing a road adhesion coefficient-tire aligning torque estimator; and S6, combining the road adhesion coefficientvisual estimation value theta ximage and the current road peak adhesion coefficient estimation value theta y, and acquiring a final road adhesion coefficient estimation value by utilizing a fuzzy reasoning rule. Compared with the prior art, the method has the advantages of high estimation precision, good real-time performance, strong robustness and the like.

The invention relates to a method for quickly evaluating an exhibition material based on image processing, which comprises the following steps: firstly adopting a nano film test piece method to test the material, next using a designed image acquisition device to acquire images of the test piece, finally applying an image processing method to divide the acquired images of the test piece, and using the obtained division result to calculate the corroded area ratio of the test piece so as to grade the material, wherein the result is basically consistent with manual visual estimation and does not rely on human subjectivity. The method adopts the technology of material science, image processing, preservation of cultural relics and the like, effectively applies the image processing in the field of the preservation of cultural relics, and acquires better effect than other methods.

The present invention discloses an anchor chain length indicating device, and belongs to the ship machinery technology field. The device comprises a first gear, a second gears, a decelerator, a pointer and a dial which are coaxially arranged on the rotation shaft of a cable lifter. The second gear is arranged on the input shaft of the decelerator, the second gear is engaged with the first gear, and the pointer is vertically connected with the output shaft of the decelerator. The scales showing the length of the anchor chain are distributed on the dial, and the scales are arranged all around the output shaft of the decelerator so as to obtain the length of the released anchor chain through the scales indicated by the pointer when the cable lifter rotates and avoid the problem that the length of the released anchor chain is not accurate through visual estimation.

The invention discloses a garden insecticide spraying device and a working mode thereof, and relates to the technical field of spraying equipment. The garden insecticide spraying device comprises a bottom plate, a pushing handle is fixedly connected to the upper surface of the bottom plate, a plurality of universal wheels are installed on the lower surface of the bottom plate, a pesticide box is connected to the upper surface of the bottom plate, and a first observation window is installed on the front end face of the pesticide box; and a mixing mechanism is installed on the upper surface of the pesticide box, a water inlet pipe fixedly communicates with the upper surface of the pesticide box, a pesticide dispensing hopper fixedly communicates with the upper surface of the pesticide box through a pesticide conveying pipe, matched control valves are installed on the water inlet pipe and the pesticide conveying pipe, a second observation window is installed on the front end face of the pesticide dispensing hopper, and scale marks are arranged on the first observation window and the second observation window. A lifting mechanism is fixedly connected to the upper surface of the bottomplate, and a water pump is mounted on the lifting mechanism. According to the garden insecticide spraying device, it is avoided that pesticide mixing is conducted through manual visual estimation, thepesticide mixing accuracy is improved, and therefore the pesticide effect is improved, and the situation of pesticide damage is avoided.

The invention belongs to the technical field of speed test and relates to a speed test system and test method. The system comprises a marking module for marking a target object, an acquisition modulefor acquiring the image of the target object and recording the acquisition time of the image, a speed module for calculating the speed of the target object during the movement of the target object, and an output module for outputting a result; the marking module includes a fixing member for connecting the target object, a light emitting tube arranged on the fixing member, and a driving circuit fordriving the light emitting tube to emit light; and the acquisition module is provided with a band pass filter. According to the speed test system and test method of the invention, a non-contact direct test speed method is adopted, so that the defects of visual estimation or test methods such as tape measures and stopwatches can be eliminated; required speed information can be calculated automatically after the image information of the target object is obtained; and therefore, the accuracy of test can be effectively improved, and a test process is efficient and convenient.

The invention discloses a photoelectric controlling spreading location device, which is characterized by the following: the axial sliding disk is set on the roll axis of two positive roll external sides separately; the roll axis is composed of bearing and bearing seat on the frame; several axial spreading stripes are assembled around the positive roll periphery, which is matched by guiding dovetail groove; the outboard of spreading stripe is set on the two ends of positive roll disk periphery at sequent gap with a radial rod on the disk outside diameter face; two ends of rod assembles vertical guide screw, which is connected by screw nut; the speed reducer and motor are matched in the outboard of guide screw; the photoelectric probe is set in one side of positive roll, which connects the motor controlling switch device. The invention overcomes the defect of inaccurate locating effect due to artificial visual estimation edge-to-edge and complex operation, which is fit for kinds of cloth to proceed spreading and finishing utility before printing.

The invention relates to a wheat lodging area identification method based on spectral texture features and a support vector machine, and the method comprises the steps: assembling a multispectral sensor on an unmanned plane platform, and monitoring a farmland; superposing the single-channel remote sensing images of several wavebands based on the geographic coordinate information of each pixel according to the unmanned aerial vehicle image to generate a plurality of multispectral remote sensing images containing a plurality of channels; through a visual estimation mode, according to lodging and non-lodging types, generating an image with only a lodging area or a non-lodging area in a view field as an original data set; based on a principal component analysis method, calculating texture features of the first two principal components of all the images in the original data set and spectral reflectivity of each pixel in each wave band; constructing a support vector ting machine model and training, presetting the window size, and calling the support vector machine model to judge the type of each window; and counting the number of pixels of all the lodging regions, and further solving the area of the lodging regions.

The invention provides a method for identifying argillaceous rocks under a polarizing microscope, belonging to the technical field of rock variety identification. The method comprises the following steps: positioning directionally aligned minerals in rock slices in the center of the horizon of a crossed polarizing microscope, and enabling the directions of principal axes of the directionally aligned minerals to be parallel to a longitudinal cross hair of an eyepiece; selecting an objective lens with magnification times being 5; turning a stage to the right at an angle of 45 degrees to enable the directionally aligned minerals to be in an extinction state; inserting a gypsum test plate; judging that the directionally aligned minerals x1 towards the right have purple blue interference colors; determining the percentage content of all the directionally aligned minerals x1 towards the right with purple blue interference colors in the horizon by adopting an area visual estimation method; turning the stage to the left at an angle of 90 degrees; judging that the directionally aligned minerals x2 towards the left have orange interference colors; visually estimating the percentage content of all the directionally aligned minerals x2 towards the left with orange interference colors in the horizon. The method can provide the basis for the oil finding directions for petroleum exploration and development and discovery of new oilfields, and has practical values.

The invention provides a Gaussian process regression method with feature selection performance, and solves the problems of excessively high feature input dimension and feature redundancy in a process of solving a visual mapping problem by utilizing Gaussian process regression. The method comprises the steps of firstly assuming that parameters related to feature weights in distribution parameters meet Laplace priori distribution; secondly estimating the parameters through a maximum posterior probability estimation method, so that feature-related weights have sparsity, namely, feature selection performance; and finally obtaining regression parameters by solving a sparse problem. When a new sample is subjected to visual estimation, sparse regression parameters are directly utilized for performing feature selection and an estimated target value is obtained. The method is simple and effective, and has good performance.

The invention discloses a welding seam deflection measuring method for a tailor-welded blank spinning forming curved surface component, and aims to accurately measure a tailor-welded blank thin-wall curved surface component spinning forming welding seam deflection angle, perfect experimental data, obtain important forming quality evaluation indexes, facilitate follow-up process optimization and improvement and improve spinning forming quality and forming limit. According to the measuring frame, accurate measurement of welding seam deflection of the thin-wall curved-surface component formed by spinning of the tailor-welded blank is achieved through the measuring method, operation is easy, efficiency is high, cost is low, accurate measuring result data are provided for measurement of geometric parameters related to the thin-wall curved-surface component formed by spinning of the tailor-welded blank, the problems of large error and inaccurate measurement caused by a measurement mode depending on visual estimation in the prior art are solved, and the accurate measurement of the deflection angle of the welding seam of the thin-wall curved surface component is realized.

The invention discloses a robot motion posture visual estimation method. The method relates to the technical field of robot and machine vision, and comprises the steps of collecting continuous video images in a dynamic environment, selecting two of the collected images, detecting key points, calculating characteristic values of the key points, and detecting and storing the positions of the characteristic points; segmenting an original image, and obtaining and storing the position of a pixel region where a dynamic object is located in the image; comparing the image storing the feature point information with the image storing a segmentation result, and removing feature points distributed at the position of the pixel area where the dynamic object is located in the image storing the feature point information; and performing feature matching between the adjacent images by using the residual feature points after elimination and optimization, calculating pose motion of a robot between the adjacent images, and outputting robot motion pose estimation. The method has the advantages of being high in pose estimation accuracy, small in calculated amount and high in background environment interference resistance.

The invention belongs to the nuclear power plant detection and maintenance technology, and particularly relates to a dynamic balance weight angle positioning device suitable for a main pump motor of a nuclear power plant; the device comprises a positioning instrument inner ring arranged outside a rotating shaft at the lower part of the motor, a positioning instrument outer ring arranged outside the positioning instrument inner ring, and a laser ray instrument arranged on the positioning instrument outer ring and positioned at the outer edge. Accurate and rapid positioning of the counterweight angle position is achieved, errors caused by visual estimation when the weighting angle is calibrated on site are eliminated, the weighting angle is kept consistent with a theoretical calculation result, the implementation effect of dynamic balance adjustment is guaranteed to the maximum extent, and dynamic balance adjustment succeeds at a time; and in addition, error accumulation of the actual weighted position can be avoided, and the calculation correctness of the dynamic balance influence coefficient of the subsequent main pump motor is kept, so that the vibration characteristic of the main pump motor can be correctly represented.

The invention discloses a high tide level quantitative research method for estuary design in a future scene. The method comprises the following steps: S10, processing long series observation data of corrected estuary tide level by utilizing a Mann-Kendall method so as to judge the trend of the estuary tide level; S20, adopting a Markov Chain Monte Carlo algorithm and combining with Metropolis-Hastings sampling to construct a random model, and simulating a tide level sequence through the random model; S30, combining the historical tide level sequence and the simulated tide level sequence to obtain a new tide level sequence, and checking the new tide level sequence; and S40, calculating an initial value according to the new tide level sequence, and performing visual estimation line adaptation by utilizing a P-III type curve to finally obtain a designed high tide level. A quantitative solution is provided for predicting and researching the design high tide level in the estuary area, the calculation result is reasonable and credible, and the method has high practical value in the aspects of flood prevention and moisture prevention work and corresponding engineering design.