48results about How to "Solving recognition difficulties" patented technology

The invention discloses a pseudorandom bar code applied to a digital level bar code ruler, belonging to the technical field of manufacture of instruments of surveying and mapping. The pseudorandom bar code is formed by alternatively arranging a plurality of light and shade stripes with different widths, wherein the widths and light and shade changes of the strips are modulated by a plurality of pseudorandom sequences. The strips in the bar code comprise coarse code strips for remote measurement and thin code strips for close measurement. The thin code strips are formed by alternatively arranging light and shade strips with smaller widths, and the width changes of the light strips and shade strips are respectively modulated by a pseudorandom sequence. The coarse code strips are formed by arranging light and shade strips with bigger widths, and the widths and light and shade changes of the strips are modulated by a pseudorandom sequence. The coarse code strips are regularly embedded in the fine code strips to form a complete bar code. The pseudorandom bar code is characterized in that a plurality of pseudorandom sequences are alternatively coded for modulating the widths and light and shade changes of the strips. The pseudorandom bar code has the advantages of compatibility with remote measurement and close measurement, capability of forward measurement and backward measurement, simplicity in making a staff gauge, low requirement for a hardware system, small decoding operand, and rapidness and accuracy in identification.

The invention relates to a multi-resource remote sensing distinguishing method and system of an underground potassium- and halide-containing water resource in a salt lake area. The method comprises the following steps: acquiring data, namely, acquiring multi-resource remote sensing image data; processing data, namely, processing multi-spectral remote sensing image data and high-resolution remote sensing image data by the multi-color transformation technology, building a remote sensing stratum lithology interpretation mark and performing remote sensing stratum lithology interpretation; extracting salt-containing abnormality information from the multi-spectral remote sensing image data by the main component analyzing technology; extracting the salt information by the interpretation extracting method; processing a radar remote sensing image data, building a geologic structure interpretation mark for potassium- and halide-containing water resource and performing geologic structure interpretation; integrating data, namely, processing three information obtained in data processing by overlapping, projection transformation and matching. According to the method, the multi-resource remote sensing image data are processed, interpreted and integrated to realize accurate distinguishing of the potassium- and halide-containing water resource.

The invention discloses a stem content in leaf infrared imaging detection method based on active heating, which is characterized in that tobacco leaves are uniformly spread and thinned through a vibration disc and an acceleration belt, the uniformly spread and thinned tobacco leaves are heated by using a heating device and sent to a refrigeration apparatus for cooling, tobacco leaves are scanned to the images of leaf blades and leaf stems by an infrared heat imaging instrument, the infrared heat radiation of the target tobacco leaves can be detected through the infrared heat imaging instrument to obtain the distribution images of leaf blades and leaf stems of the target tobacco leaves can be obtained; the images segmentation of the distribution images of leaf blades and leaf stems of the target tobacco leaves can be carried out, and the segmented leaf stems images can be analyzied, the leaf stem information which accords with practical production requirement can be obtained, and the stem content rate in leaves can be calculated. According to the invention, the clear stem images of the tobacco leaves can be obtained, and the shape and size of the leaf blades and leaf stems can be accurately and rapidly identified.

The invention provides a method for identifying RMB. The method comprises the following steps: collecting security features on the RMB to be identified; dividing the security features according to locating areas; setting the priority of each security feature in each identification area; calculating the similarity between each security feature and the standard security feature; judging the authenticity of each identification area according to the priority and similarity of the security feature, and if any identification area is judged to be counterfeit, the RMB is determined to be counterfeit. The method provided by the invention overcomes the problem of identification troubles caused by varied counterfeiting difficulties of each security feature on the RMB; the similarity between each security feature and the standard security feature is calculated through setting the priority of each security feature, so that the similarity result between the counterfeit RMB and the real RMB is obtained.

The invention discloses a mountain crack detection method, comprising: analyzing collected images through an image sliding window, and determining the contrast ratio of each pixel point in the images; in dependence on contrast ratios, constructing and analyzing a contrast graph, determining the optimal segmentation threshold of the contrast graph, determining an area to be enhanced in dependence on the threshold, and performing image reinforcement processing on the area to be enhanced; analyzing processed images, and determining a gray scale characteristic graph and a variance characteristic graph; calculating optimal segmentation thresholds of the gray scale characteristic graph and the variance characteristic graph, and the binary images of contrast characteristics and variance characteristics, and performing AND operation on the two binary images to determine the binary image of racks; transforming the binary of racks to determine a refined frame, and performing area extension processing on the frame to obtain all crack latent areas on the frame; and traversing frame pixels to obtain crack length information, and calculating a crack area in dependence on the number of area pixels.

The invention discloses a CRNN-based picture table extraction method, and the method comprises the following steps: S1, carrying out the perspective transformation of a to-be-detected picture, and correcting the picture; S2, performing table skeleton extraction on the corrected picture by using a deep neural network; S3, obtaining a cell ROI (Region of Interest) from the table skeleton; S4, recognizing text contents in all the cell ROIs through an OCR recognition model; and S5, restoring the text content to a table through the table skeleton typesetting in the step S2, so that the picture table is converted into a data table, and the extraction of the picture table is completed. According to the method, perspective transformation is carried out on the to-be-recognized picture once, the picture angle is corrected, and then the deep neural network model is used for extracting the overall table skeleton, so that the situation that the edges of cells are connected by handwritten characters in the prior art or the problems that a table in the picture is not clear, the picture is light, inclined and fuzzy are solved, and the problem that time and labor are wasted because a large amount of manual parameter adjustment is needed is solved.

The invention relates to a finger vein recognition method. The method comprises the following steps: S1, carrying out ROI positioning on an image acquired by a high-definition camera; S2, performing gray normalization processing on different parts of the image; S3, performing mean filtering and Gaussian filtering on the image to eliminate noise; S4, judging the central positions of the lines by using curvature detection; S5, enhancing the contrast of the grey-scale map through gamma transformation; S6, judging edge pixel points by using a refinement algorithm based on an index table; and S7, carrying out fusion, expansion and smoothing treatment on the extracted finger vein skeleton. Finger vein recognition is performed through template matching, Hu invariant moment and improved Zernike moment. Particularly, under the condition of unclear image acquisition, the method has relatively high anti-interference capability and relatively high-precision identification capability.

The invention relates to a beam line processing method and device, equipment and a storage medium, and relates to the technical field of drawing correction. The beam line processing method comprises the following steps: analyzing first position information of each beam line from an architectural drawing; second position information of the contour line of each wall column is analyzed from the architectural drawing; according to the first position information and the second position information, non-standard beam lines are recognized, and the non-standard beam lines comprise at least one of the beam lines having intersection points with the contour line of the wall column and the beam lines having no intersection points with the contour line of the wall column, and the distance between the beam lines and the contour line is smaller than a preset distance value; the non-standard beam line is cut off, the cut-off part is removed, the cut-off beam line is generated, and the cut-off beam line is the standard beam line. The method is used for solving the problem that beam members are difficult to recognize due to non-standard beam lines.

The invention discloses a leukemia cell microscopic image classification method and system based on DenseNet, and the method comprises the steps: adding a dyeing deconvolution layer and a discrete cosine transform module on the basis of a DenseNet network, so as to obtain the feature information of a cell microscopic image in a spatial domain and a frequency threshold of coloring agent absorptionamount; and acquiring a feature vector by fusing the two kinds of information and using the vector for judging whether the blood cells belong to cancer cells or not. The coloring agent absorption amount is used for representing the characteristics of the cell microscopic image, the problem that recognition is difficult in an RGB color space is solved, the average accuracy rate and the average weighted F1 score reach 89.81% and 89.64% respectively, automatic classification of leukemia cells is achieved, and therefore a pathologist is assisted in diagnosing leukemia, and the missed diagnosis rate and the misdiagnosis rate are reduced.

The invention discloses an automatic identification method and device for a whole brain range single neuron axis sudden synaptic junction. The method comprises the steps of carrying out the splittingof a neuron skeleton tree, obtaining a plurality of sub-segment fibers, and extracting the neighborhood image signals of the sub-segment fibers; carrying out the adaptive foreground segmentation on the neighborhood image signals of the sub-segment fibers, positioning the axonal expansion structures of the sub-segment fibers, and fusing the axonal expansion structures on all the sub-segment fibers;and classifying the axonal expansion structures by using a deep convolutional network, and removing the axonal expansion structures of the non-axonal sudden contact junctions in the axonal expansionstructures to obtain the final axonal sudden contact junctions. The device comprises an acquisition module and a classification module. According to the invention, the identification difficulties caused by the diverse shapes of the axonal synaptic junctions, adhesion of the axonal synaptic junctions, interference of false axonal synaptic junctions and the like can be overcome, all axonal synapticjunctions of a single nerve are quickly identified from a whole brain neuron morphological data set, and the accuracy of an identification result is kept while a whole brain oversized data set is quickly processed.

The invention discloses a football match offside judgment method and device based on an unmanned aerial vehicle, and electronic equipment, and the method comprises the steps: obtaining a real-time video of a football match, the real-time video being obtained by a visual sensor of the unmanned aerial vehicle; applying an identification algorithm to the current frame image of the real-time video to obtain a football detection area and a player detection area; performing feature extraction on the player detection area through cosine similarity, nonlinear normalization transformation and HSV transformation, and inputting the extracted features into a classification model to obtain category information of a team to which players belong; according to the football detection area and football player detection, judging whether passing occurs by judging whether an overlapping area exists between the football player detection area and the football detection area and comparing the distance between the center points of the football detection areas of the front frame and the rear frame, and if passing occurs, obtaining category information of a team to which the football player of the passing party belongs; according to the player detection area of the passing party and the information of the team, performing straight line detection, obtaining the position of an offside line, and performing offside judgment.

The invention discloses a 3D electromagnetic scanning system which can solve a problem of intuitive and visual representation of a three-dimensional spatial position relationship between a detection point and a measured object and spatial electromagnetic field distribution. The system comprises a control module, a 3D scanning module, a mobile scanning module, an electromagnetic probe and an electromagnetic signal receiving module. The control module acquires 3D contour information of a measured area and spatial position information of mark points from the 3D scanning module; the control moduleacquires position information of the electromagnetic probe on the mobile scanning module from the mobile scanning module; and the control module acquires scanning point electromagnetic signal frequency spectrum information received by the electromagnetic probe from an electromagnetic signal receiving module. And the control module converts the spatial position information of the mark points and the position information of the electromagnetic probe on the mobile scanning module to obtain a scanning point spatial position set of the electromagnetic probe, and finally fits the 3D contour information of the measured area, the scanning point spatial position set and the scanning point electromagnetic signal frequency spectrum information to output a 3D spatial electromagnetic distribution map.

The invention belongs to the field of bill text recognition, and relates to a financial bill seal erasing method based on an attention mechanism and a generative adversarial network, which is implemented by a processor and comprises the following steps: receiving an original picture of a financial bill; determining a first feature map according to the original picture by using a feature extraction module in a convolutional neural network; using the convolutional neural network to respectively extract a background color map of the original picture and an attention heat map reflecting position distribution of a stamp on the original picture according to the first feature map; using the convolutional neural network to generate a seal-erased picture of the original picture in a generative adversarial mode according to a second feature map spliced by the original picture, the background color map and the attention heat map in the channel direction; training the convolutional neural network in a generative adversarial mode. The problem that the financial bill containing the seal is difficult to identify is solved, and the purpose that the seal is erased without losing original character information is achieved.

The invention relates to a human body posture estimation method based on a joint relation, and the method comprises the following steps: S1, constructing a joint relation module which comprises two sub-modules: a channel-based feature relation module and an adjacent joint space relation module; s2, constructing a human body posture estimation model based on a joint relation; s3, training a human body posture estimation model based on a joint relation by utilizing the marked human body posture data; and S4, performing a human body posture estimation task based on a single image by using the trained human body posture estimation model added with the joint relation module to obtain a predicted human body posture. Compared with the prior art, the invention effectively overcomes the problem that the positions of four-limb joints with high degree of freedom, such as wrist joints, ankle joints and shielded invisible joints, are difficult to detect in the image, and is high in human body posture estimation accuracy.

The embodiment of the invention discloses an early warning method and device for network fraud, computer equipment and a storage medium. The method comprises the following steps: collecting network flow data in real time, and extracting a target access website included in the network flow data; inputting the target access website into a pre-trained fraud website early warning model, and collecting an recognition result of whether the target access website belongs to a fraud website; and if the recognition result is that the target access website belongs to the fraud website, recognizing an access party type of the target access website as a fraud party or a deceived party, and performing fraud early warning by adopting a matched early warning mode according to the access party type. According to the method provided by the embodiment of the invention, the problem of difficulty in recognizing fraud persons is solved, and the case data is processed in real time. The occurrence of network fraud cases is reduced, the property loss of people is reduced, and early warning can be carried out on the network fraud cases.

The invention relates to a method for extracting chapter relation by fusing multi-level information extraction and noise reduction, and belongs to the technical field of computer natural language processing. The method comprises the steps of 1, using BERT as an encoder, performing vectorization representation on chapter information, and extracting mentions, entities, sentences and hidden layer vector information of chapters in the chapter information; 2, providing a method for fusing multi-level information to solve the problem of multiple instances and multiple labels, wherein the multi-level information comprises information referring to levels, information of an entity level, information of a sentence level and information of a chapter level; and 3, proposing to roughly extract the proof sentences by using the mentioned position information, and then capturing the important relation characteristics of the proof sentences by using a noise reduction method. According to the method, when relation extraction is carried out on entity pairs in a chapter, the problems of multiple instances and multiple labels in the chapter, difficulty in identification of proof sentences and the like can be considered and solved. Experiments show that the method is significantly improved in the evaluation index of F1.

The invention provides a grating detection method for low reflection energy transmission fiber grating. The method is suitable for a fiber grating detection and measurement system. The system consistsof a broadband light source, a first high-speed optical switch, a first attenuator, a circulator, an optical cable, a fiber grating, a second attenuator, a second high-speed optical switch, a tracking filter, a demodulator, and a logic controller. By using two high-speed optical switches to perform high-precision time domain control on the emitted and reflected light, using the tracking filter tofilter the reflected light of the fiber grating in a specific band, and using the background noise suppression technology, stable identification of the wavelength of the low reflection energy transmission fiber grating and accurate distance measurement can be realized. The technology has the characteristics of simple structure, low cost and high detection accuracy.