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406results about How to "Improve match rate" patented technology

Method for quickly matching Chinese addresses in multi-level manner on basis of address feature words

The invention discloses a method for quickly matching Chinese addresses in a multi-level manner on the basis of address feature words, and belongs to the field of data spatial research in the geographic information science. The method particularly includes two links of creating standard Chinese address matching dictionaries and matching the addresses. Chinese words of standard Chinese addresses are segmented on the word segmentation basis of the address feature words, the standard Chinese address matching dictionaries are created by the aid of double-array trie trees and Hash operation, database retrieval modes are replaced by bidirectional scanning and Hash operation, and geographic spatial coordinates of the Chinese addresses to be matched are acquired, so that the Chinese addresses can be matched. The method has the advantages that integral address matching procedures can be completed in memories of computers, and the address matching speed can be increased owing to bidirectional scanning and a simultaneous word segmentation and matching mode; the problem that partial Chinese addresses cannot be matched due to missing of address elements can be solved according to Chinese address classifying, layering and combining rules, and the address matching accuracy can be improved.
Owner:ZHEJIANG UNIV

POS auxiliary aviation image matching method

InactiveCN101464149AUnleash the full potential of your applicationImprove match ratePicture interpretationAviationParallax
The invention discloses a POS-aided method for matching aerial images, which comprises the following steps: firstly, utilizing an exterior orientation element obtained by the POS to construct a homonymous nucleofilament constraint equation and predict the initial parallax of an image; then, establishing an image pyramid according to the initial parallax and an approximate one-dimensional image correlation which carries out nucleofilament constraint layer by layer on the image of the pyramid; and finally adopting the matching of least-square images to confirm homonymous image points and pick mismatched points, thereby obtaining the homonymous image points of the images to be matched. The invention which adopts the POS-aided image matching method to automatically measure image points has the advantages that not only the application potential of the POS can be fully developed; but also the matching rate and the matching efficiency of automatically rotating points can be improved; and the problems that the rotating points of the images are so difficult to be matched that the rotating points are required to be measured manually and interactively are solved, for example, the rotational angles of certain images are too large, the image texture is not obvious, and the topographic relief is bigger.
Owner:WUHAN UNIV

Method for re-identifying vehicles in sequence images of monitoring video

The invention discloses a method for re-identifying vehicles in sequence images of a mentoring video. The method comprises the following steps of performing image feature extraction: for all shot video data, firstly detecting out vehicle images appearing under a camera, dividing the vehicle images of the monitoring video into a plurality of equilong vehicle image sequences according to the vehicles and the camera, calculating grayscale histograms of two channels Cr and Cb in a YCrCb space, and finally obtaining vehicle contour images by using a Gabor filter and original image convolution; performing a set-to-set-based metric learning method: training a step of learning a metric function of relative distances between vehicle target image sequences, namely, performing metric learning based on a thought of maximization of a probability that inner-class distances are shorter than between-class distances; and performing between-set metric learning-based vehicle re-identification. According to the method, the complexity of an algorithm is lowered while feature dimensions are reduced; and after between-set distance measure is added based on a re-identification effect, the identification rate of the algorithm is increased and the identification effect is improved.
Owner:河南高速公路驻信段改扩建工程有限公司 +1

Police service cloud image recognition vehicle management and control system based on geographic space-time constraint

The invention discloses a police service cloud image recognition vehicle management and control system based on geographic space-time constraint. The system comprises an image data collection and decomposition module, an image retrieval module, a data storage module and a geographic information service module. The system is characterized in that the image data collection and decomposition module is responsible for collecting road images, extracting vehicle characteristics in the images and transmitting vehicle characteristic information in the images to the data storage module, the data storage module is used for storing the road images and image characteristic element data concerning the vehicle characteristic information in the images, the image retrieval module is used for responding to image retrieval requests of requesters, acquiring retrieval results meeting the image retrieval requests in an image retrieval mode mixing the image characteristic element data with geographic space-time constraint according to the image retrieval requests of the requesters and feeding the retrieval results back to the requesters, and the geographic information service module is used for responding to vehicle positioning requests of the requesters, acquiring vehicle space position information through a map server served by a geographic information platform and feeding the vehicle space position information back to the requesters.
Owner:SUZHOU XIANGYI NETWORK TECH

Double-channel grinding method of double-row ball bearing

The invention relates to a double-channel grinding method of a double-row ball bearing. The method is characterized in that a centerless clamp is adjusted, wherein an axial positioning support of the centerless clamp is ground by using an equipment self-grinding mode, and the end face runout of the axial positioning support is controlled within 2 micrometers; the angle alpha of an equipment workpiece frame is adjusted according to the requirements of the sizes of a ground loop, comprising the diameters of channels De / di, the positions of the channels a / b, the channel spacing a1 / b1 and the curvature radiuses of the channels Re / Ri, and the angle adjustment range is between 0 degrees and 25 degrees; a control cabinet of a CNC digital control system is used for controlling the shape of a single-point trimming grinding wheel of an arc trimmer; the positioning surface of the ground loop is fixed on the centerless clamp, and the control cabinet of the CNC digital control system is adopted to control the feed travels of an equipment workpiece X axis and a grinding wheel grinding frame Z axis meanwhile; after locking, a rotating type electric main shaft and a rotating equipment workpiece main shaft drive the ground loop so as to ensure that the grinding wheel enters a first row of channels to be ground; and after the grinding of the first row of channels is finished, the grinding wheel is fed into the second row of channels through the CNC digital control system and locked to grind the second row of channels.
Owner:HANGZHOU RADICAL ENERGY SAVING TECH

Image copying and pasting detection method based on circular description operator CSIFT (Colored scale invariant feature transform)

InactiveCN104182973AOvercome the disadvantage of not being able to use color informationImprove match rateImage analysisScale-invariant feature transformDimensional operator
The invention relates to an image copying and pasting detection method based on circular description operator CSIFT (Colored scale invariant feature transform). The image copying and pasting detection method comprises the following steps: 1) inputting a colorful image, and calculating the color invariant of the colorful image, and taking the gradient direction of the color invariant as a direction characteristic; 2) detecting a scale space extremum line, and positioning key pints; 3) determining the main directions of the key points by utilizing a circular description operator to generate the 24-dimensional operators of all key points; 4) taking Euclidean distance between the operators of every two key points as measurement for judging key point similarity, pairing all key points in the image, determining two suspicious areas in the image, and finding all paired key points in the two suspicious areas; and 5) if the amount of the paired key points is greater than a set threshold value, judging that the image is tampered by copying and pasting, and otherwise, judging that the image is not tampered by copying and pasting. The method is favorable for accurately and efficiently detecting whether the same image is tampered by copying and pasting.
Owner:FUZHOU UNIV

Geocoding-free rapid image splicing method of low-altitude unmanned plane

The invention relates to a geocoding-free rapid image splicing method of a low-altitude unmanned plane. A key frame image is extracted from a video to carry out geocoding-free rapid image splicing to generate a panoramic image. The method comprises the following steps: extracting a key frame image from a video stream to obtain all to-be-spliced images; carrying out feature point extraction including establishing a multi-dimensional space unit, constructing a pyramid image, determining a key point position, and removing an unstable point on all to-be-spliced images and carrying out screening on the key point by using a SUSAN algorithm to obtain a final feature point; carrying out feature matching according to respective feature points of a corresponding reference image and a to-be-matched image; and carrying out smoothening on the to-be-spliced images by using a gain compensation method, carrying out weighted average fusion on spliced overlapped areas to eliminate seams and sawteeth, and carrying out splicing to generate a panoramic image. According to the technical scheme, the method can be applied to fields of emergency surveying and mapping, disaster prevention and mitigation, land monitoring, emergency monitoring, pipeline layout and inspection of the oil sector, and circuit layout and power line inspection of the power sector and the like.
Owner:WUHAN UNIV

Text perception based emotion feedback method and apparatus, computer device and storage medium

The present application relates to a text perception based emotion feedback method and apparatus, a computer device and a storage medium. The method comprises: calculating obtained to-be-fed back textcontent by using a text content perceptor to obtain the first weight distribution ratio and the second weight distribution ratio; inputting the to-be-fed back text content into a trained neural network to obtain an emotion classification result; calculating emotion words in the to-be-fed back text content according to a preset rule in a preset dictionary to obtain a corresponding emotion index result; according to the first weight distribution ratio and the second weight distribution ratio, weighting the emotion classification result and the emotion index result to obtain an emotion analysisresult; obtaining an emotional opinion result corresponding to the to-be-fed back text content; and according to the emotion analysis result and the emotional opinion result, selecting a target emotional feedback comment reply corresponding to the to-be-fed back text content from a preset comment reply association library. By virtue of the technical scheme of the present application, the matchingrate between the to-be-fed back text content and the target emotional feedback reply can be improved.
Owner:KINGDEE SOFTWARE(CHINA) CO LTD

Fabric property picture collection and recognition method and system based on deep learning

The invention discloses a fabric property picture collection and recognition method based on deep learning. The method comprises the steps that multiple fabric property pictures are acquired, macro information and micro information of the fabric property pictures are collected, and a training set is generated; the training set is trained through a deep learning model; deep features which are trained through the deep learning model and contain global information and local information at the same time are extracted, and linear discriminant analysis is performed on the deep features to complete training of the deep learning model; and fabric recognition is performed through a cosine distance according to the trained deep learning model. Through the method, multiple fabric property recognition problems including weaving process problems, background color process problems, surface process problems, printing process problems, spinning process problems and the like are solved, meanwhile, the trained model contains the local information and the global information at the same time, and the accurate recognition rate and the matching rate of a local pattern and a global pattern of a fabric are increased. The invention furthermore discloses a fabric property picture collection and recognition system based on deep learning.
Owner:湖州易有科技有限公司

Matching method of power battery pack

The invention discloses a matching method of a power battery pack. The power battery pack is obtained by sequentially connecting cells in parallel and in series. The matching method of the cells connected in parallel comprises: acquiring the capacity of each cell; performing cycle charge and discharge according to a charge-discharge rate required by the purpose, and recording charge and discharge curves; calculating a voltage-dependent electric quantity change rate dQ / dV curve of the discharge curve, wherein the dQ / dV curve has two peaks; searching for voltage values corresponding to the peaks according to the dQ / dV curve, finding electric quantity values of the corresponding cells in the discharge curve according to the voltage values, and calculating a difference Dn between the electric quantity values; acquiring the self-discharge rate of each cell; acquiring an internal resistance value of each cell; grading Dn according to the values into a plurality of large groups, and classifying the cells into the corresponding large groups according to the tested Dn values, wherein the cells in each large group are classified into a plurality of medium groups based on the value of the self-discharge rate, and the cells in each medium group are classified into a plurality of small groups according to the internal resistance values of the cells; selecting a plurality of cells in the same group for matching.
Owner:江西优特汽车技术有限公司

Deep learning-based small-area fingerprint comparison method

The invention discloses a deep learning-based small-area fingerprint comparison method. The method comprises the following steps of 1) finding position and direction information of a feature point in a small-area fingerprint; 2) according to the obtained position and direction information of the detail feature point in the step 1), performing rotation normalization on an image by taking the feature point as a center and the direction of the feature point as an X axis, and capturing a small block B of a set size; 3) performing convolutional network training: adopting a deep residual error network for a network model of a convolutional neural network, and training a training sample by using a Caffe framework; 4) performing semantic feature extraction; 5) performing fingerprint registration: enabling a user to perform registration in combination with a corresponding instruction in a registration process, wherein a registration template is composed of a feature point union set of a registration fingerprint image; and 6) performing fingerprint comparison, wherein a comparison score is determined by a mean value of a plurality of maximum values of similarity in to-be-matched images and the registration template. The deep learning-based small-area fingerprint comparison method provided by the invention is effectively suitable for small-area fingerprint comparison and is high in reliability.
Owner:HANGZHOU JINGLIANWEN TECH
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