Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

169results about How to "Improve the matching success rate" patented technology

Block chain-based online taxi-hailing service system

InactiveCN107045650AReal-time time-consumingReduce uncertain attribute problemsReservationsTransmissionArtificial Intelligence SystemMobile client
The invention discloses a block chain-based online taxi-hailing service system. The system includes a traffic cloud database, a traffic cloud artificial intelligence system (TAI) and a mobile client. With the block chain-based online taxi-hailing service system adopted, a decentralized, trustless, collectively maintained, asymmetric cryptography reliable database basic infrastructure and underlying internet protocol can be provided for traffic cloud; and a mobile SaaS (Software-as-a-Service) application pattern, a distributed computing normal form and a group intelligence model which can establish high-degree connections for travelers based on time stamp, achieve travel resource allocation consensuses and provide services according to demands can be realized.
Owner:罗轶

Carpooling system for matching information through route segmenting method

The invention discloses a carpooling system and method for matching information through a route segmenting method. The carpooling system comprises a mobile passenger terminal, a mobile driver terminal, a website platform, a car hire managing and dispatching system and a communication module, wherein the mobile passenger terminal, the mobile driver terminal, the website platform and the car hire managing and dispatching system communicate with one another through the communication module. Based on a common computing and matching method, in order to achieve matching of same-direction carpool information to the maximum extent, a vehicle route is matched by adopting a full-route coordinate segmenting way to help a passenger to match the optimal route and the predicted arrival time of a vehicle going in the same direction. The carpooling system is applied to a mobile terminal product and an Internet platform, and has a greater same-direction carpooling matching range, more optimized matching accuracy and zero error rate, thereby directly improving the carpooling matching success rate; the carpooling system has the characteristics of energy conservation, low carbon and environment friendliness, simultaneously reduces the pressure of public transport, and relieves traffic congestion to a certain extent.
Owner:NINGBO CONVEY NETWORK TECH CO LTD

Fuzzy Chinese address geographic evaluation method based on matching rule

InactiveCN101882163AReduce the number of query visitsImprove matching speedSpecial data processing applicationsData setAmbiguity
The invention relates to a fuzzy Chinese address geographic evaluation method based on a matching rule, which belongs to the field of the address evaluation of a geographic information system. The method comprises the following steps: firstly, reading in an address character string and a standard address base; inquiring and dividing administrative division parts in the address character string and filtering reduced target data sets; then realizing the segmentation and the matching of an address by means of a matching rule tree and a rule base in allusion to the fuzzy problems of address element incompletion, address ambiguity and the like frequently appearing in the address character string, and returning a matching record meeting requirements. The invention integrates two important links of address segmentation and database matching in geographic evaluation, realizes that the database matching of the address is completed while in segmentation, effectively solves the address matching problem of the fuzzy Chinese address and improves the accuracy and correctness of address matching.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Automatic license plate character recognition method

The invention discloses an automatic license plate character recognition method. The method includes following steps: inputting color vehicle images; pretreating the images; choosing different algorithms for license plate positioning under different light conditions; subjecting a license plate to horizontal tilt correction and vertical tilt correction; adopting a method based on cluster connection and vertical projection to perform character segmentation to the license plate obtained in step d; using an improved template matching method to perform character recognition to characters obtained in step e; and outputting recognition results of step f. By the automatic license plate character recognition method, using performance of a whole automatic license plate character recognition system is evidently improved, in the step of license plate positioning, license plate positioning can be realized by choosing different algorithms under different light conditions and utilizing characteristics of license plate areas, and accurate positioning of license plate area positions can be guaranteed even under the circumstance that interferences occur.
Owner:HOHAI UNIV

Method for automatically matching multisource space-borne SAR (Synthetic Aperture Radar) images based on RFM (Rational Function Model)

ActiveCN102213762AAutomatic and reliable matchingMeet the requirements for co-locationRadio wave reradiation/reflectionSynthetic aperture radarWorkload
The invention discloses a method for automatically matching multisource space-borne SAR (Synthetic Aperture Radar) images based on an RFM (Rational function model). The method comprises the following steps of: calculating respective RPC (Rational Polynominal Coefficient) parameter of images; performing forecast of initial positions of points to be matched, matching of approximate epipolar line geometric establishment constraints and geometric rough correction of matched window images by using the RPC parameters of the images on every pyramid image layer, deleting wrong matching points from the image matching result of every layer of pyramid by adopting regional computer network error compensation based on an RFM model; refining the RPC parameters of the images and calculating the object space coordinates of the matching points; refining the matching result to the original image layer by layer; and refining a matching result by using a least square image matching method to realize automatic and reliable matching of common points of multisource space-borne SAR images. In the method, the RFM model is introduced into automatic matching of the multisource space-borne SAR images, and the regional computer network error compensation of the RFM model is blended into the image matching process of every layer pyramid, so that wrong matching points in the matching process can be effectively deleted, and the workload of manual measurement of common points is effectively lowered.
Owner:CCCC SECOND HIGHWAY CONSULTANTS CO LTD

Steady automatic matching method for high-resolution satellite image connecting points

The invention discloses a steady automatic matching method for high-resolution satellite image connecting points. The method comprises the following steps of: A, performing automatic enhancement by using Wallis filter technology, generating pyramid images of each layer and extracting the images by using feature extraction operators; B, forecasting an initial point position of identical points by using satellite image orientation parameters and upper pyramid matching results of characteristic points, establishing an epipolar geometric constraint equation, and performing geometric coarse correction on matched window images; C, removing error matched points in the matching result of the pyramid images of each layer by using an RFM model-based block adjustment method; and D, repeating the steps B, C and D till the primary image layer, and finally refining the matching result by using a double-sheet least square matching method. The method can greatly reduce the artificial editing workload of connecting point measurement and improve the automation degree of satellite image data processing by combining block adjustment and satellite image matching, and has remarkable economic benefit and social benefit.
Owner:CCCC SECOND HIGHWAY CONSULTANTS CO LTD

Visual guiding-based robot workpiece grabbing method

The invention provides a visual guiding-based robot workpiece grabbing method, and belongs to the field of robot visual recognition and positioning. The method comprises the following steps of (1) establishing templates of target workpieces in advance, collecting images of the target workpieces, and acquiring edge feature images of the templates and edge feature images of the target workpieces; (2) acquiring the deflection angle of each target workpiece relative to the corresponding template by utilizing the minimum enclosing rectangle of the edge feature image of the target workpiece, and establishing a compensation template set by utilizing the deflection angles and the edge feature images of the templates; (3) matching the edge feature images of the target workpieces and the compensation template set, and recognizing the target workpieces and acquiring the center coordinates of the target workpieces under a visual coordinate system; (4) converting the visual coordinate system to a robot user coordinate system; and (5) selecting a reference point, and uniquely identifying the same target workpiece by utilizing the time and the position to complete positioning grabbing. The targetworkpieces can be accurately recognized by utilizing the method.
Owner:TIANJIN POLYTECHNIC UNIV

System and method for optimizing camera settings

The present invention discloses a system and a method for optimizing the setting of picture catching device, and especially to an electronic system which can automatically optimizing the setting of camera and a method for optimizing the setting of camera. The electronic system comprises a storing device for storing reference picture, a picture catching device for catching the real-time picture of target object; and a comparator which is connected with the picture catching device for comparing the real-time picture and the reference picture and controlling the picture catching device according to a comparing result. Compared with the prior art, the system and the method according to the invention can reproduce the light state and color state of reference picture through automatically optimizing the setting of camera thereby increasing the matching success rate between real-time picture and reference picture.
Owner:AOTU ELECTRONICS WUHAN

Address matching method for sorting

The invention discloses an address matching method for sorting. The method includes the steps of obtaining address information of an email, carrying out data cleaning according to the address information, analyzing and processing the address information after data cleaning by means of a Chinese word segmentation algorithm, obtaining a segmentation result, and carrying out email dress matching according to the segmentation result. By means of the method, automatic matching of email addresses can be achieved, the workload of workers in the sorting process is lowered, and matching efficiency and the success rate are improved.
Owner:BEIJING DVT TECH

Service network station matching method and system

The invention relates to a service network station matching method and system. The method comprises the following steps of: obtaining the position of a customer; matching the position with a service area of each to-be-selected network station, wherein the service area is a geographic area formed by a plurality of service boundary points of the to-be-selected network station; and when the position is located in the service area of one of the to-be-selected network stations, determining the to-be-selected network station as a service network station of the customer. According to the method and system, geographic position matching is carried out on the longitudes and latitudes of customers and the service areas, the problem of matching failure caused by nonstandard address information or incomplete service network station information for matching when only address information obtained by text input is matched is avoided, and the success rate of matching between the customers and the service network stations is effectively improved.
Owner:多点生活(中国)网络科技有限公司

Infrared matching method and infrared matching system with feedback function

The invention provides an infrared matching method with a feedback function. The method comprises the steps: storing and transmitting an infrared code by adopting a cloud server, automatically transmitting the infrared code to an infrared matching device after the cloud server receives a mobile terminal matching instruction, transmitting an infrared signal to an electric appliance after the infrared matching device receives an infrared code instruction set, and monitoring a power-on situation of the household electric appliance by virtue of an electric appliance state monitoring device, wherein whether the matching is succeeded or not can be remotely confirmed. According to the infrared matching method, the automation is completely realized, the infrared matching can be realized only by pressing a starting button, and the operation is easy and convenient; according to the entire infrared code matching process, only a power-on instruction needs to be matched by simplifying the instruction set, so that the matching time is shortened, the matching success rate is increased, and the user experience is improved. The invention also provides an infrared matching system utilizing the method. The infrared matching system comprises the mobile terminal, the cloud server, the infrared matching device and the electric appliance state monitoring device.
Owner:HANGZHOU HEZHI ELECTRONICS TECH

Assisting image matching method by means of airborne lidar point cloud data

The invention relates to an assisting image matching method by means of airborne lidar point cloud data. The assisting image matching method by means of the airborne lidar point cloud data includes the steps of obtaining a reference image, searching image and the cut out airborne lidar point cloud data, abstracting a feature point from the reference image as a point to be matched, generating regularized digital surface model (DSM) information corresponding to an image overlapped region by means of the lidar point cloud data, converting point of sale (POS) data into elements of exterior orientation of the reference image, working out object space coordinates of corresponding ground points of the feature point to be matched by means of the DMS information and the elements of exterior orientation of the reference image, reversely calculating object space coordinates of the corresponding ground points to the searching image, obtaining the initial position of a corresponding matching point of the searching image, and matching by means of the correlation index to obtain a final matching result. The assisting image matching method provides good object space restraint for image matching by means of the lidar point cloud data, can effectively avoid complicated search strategies, achieves the purpose of the image matching and is high in matching success rate, short in consumed time and effective.
Owner:THE PLA INFORMATION ENG UNIV

Address similarity calculation method and device, equipment and storage medium

The invention discloses an address similarity calculation method and device, equipment and a storage medium. Aiming at the problems that address matching has complex rules, an existing matching algorithm is not high in retrieval speed and accuracy, and the address matching efficiency is low, a solution is proposed. Input address information is expressed by a proper initial vector; an address similarity calculation model based on a twin neural network is used, a gradient descent algorithm of a ternary loss function is combined, thus obtaining a feature vector of the initial address vector; finally, the cosine distance or L2 distance between the feature vector and an address vector in a standard address data set is calculated, the known address vector closest to the input address vector is obtained, so that the address matching rule is simplified, the preferred accuracy of the same address is improved, and the retrieval speed and accuracy of the matching algorithm are further improved.
Owner:SHANGHAI DONGPU INFORMATION TECH CO LTD

Measuring method for full field deformation of large-dip-angle wing

The invention provides a measuring method for full field deformation of a large-dip-angle wing. According to the method, a binocular measurement system is formed by two cameras in one area photographed by a video camera, one of image sequences of to-be-tested surfaces respectively photographed by the two cameras is taken as a reference image sequence, the other image sequence is taken as a target image sequence, each group of images is under one time sequence, and speckles are processed on the images; vertical matching under respective time sequences is performed on the basis of horizontal matching in a first state, and performing horizontal matching for other states besides the first state; deformation displacement fields of the to-be-tested surfaces are reconstructed according to calculation results of matching parameters, calibration parameters of the cameras and a triangulation principle. The measuring method is a non-contact measuring method with a high matching success rate and has the advantage of high speckle matching speed as compared with conventional speckle matching methods.
Owner:XI AN JIAOTONG UNIV

Fingerprint unlocking method and terminal

Embodiments of the invention provide a fingerprint unlocking method. The fingerprint unlocking method comprises the following steps: when a fingerprint recognition module is pressed, acquiring fingerprint by adjusting the adjustment parameters of a fingerprint acquisition chip in the fingerprint recognition module so as to obtain a plurality of fingerprint images; determining a target fingerprint image with optimal image quality in the plurality of fingerprint images; and unlocking a terminal when the target fingerprint image matches with a preset fingerprint image. The embodiments of the invention also provide the terminal. According to the embodiments of the invention, the target fingerprint image with optimal image quality can be obtained by adjusting the adjustment parameters, and the terminal is unlocked when the target fingerprint image matches with the preset fingerprint image, so the success rate of matching between the target fingerprint image and the preset fingerprint image can be improved; and thus, fingerprint unlocking efficiency can be improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Information transmission method, video playing device and video display device

The present invention relates to an information transmission method, a video playing device and a video display device. The information transmission method includes: sending an information read instruction to a video display device; acquiring EDID according to a preset acquisition rule, and extracting display parameters from the EDID; judging whether the display parameters successfully match playing parameters of a video playing device; transmitting video data matching the EDID to the video display device if the display parameters successfully match the playing parameters; and reacquiring the EDID according to the preset acquisition rule if the display parameters unsuccessfully match the playing parameters, wherein versions of the EDID acquired by the video playing device each time are different. The information transmission method, video playing device and video display device in the technical solution provided in the present invention enable the video playing device to read EDID matching playing capabilities thereof, so that video data can be successfully transmitted to the video display device.
Owner:LETV HLDG BEIJING CO LTD +1

Protocol-independent network redundant flow eliminating method

The invention discloses a protocol-independent network redundant flow eliminating method. According to the method, a certain number of data packets are grabbed from a network in advance, the data packets are grouped according to the magnitudes of loads, statistics of the data size cumulative probability of grouping is conducted, a corresponding load threshold value is determined, and a sending end conducts redundant flow elimination on the data packet the load of which is larger than the load threshold value; the loads are partitioned according to the weak Hash values, the strong Hash value of each data block is taken as a fingerprint to be matched with a fingerprint in a fingerprint base, the fingerprint which is not matched with the fingerprint in the fingerprint base and the corresponding data block are updated to the fingerprint base and a data block base, the sending end takes the initial positions of all the data blocks in the data packets and the positions of all the data blocks in the data block base as loads to regenerate data packets and sends the data packets to a receiving end, and the receiving end conducts recovery on the data packets after receiving the data block information in the data packets. The method is used for processing redundant data among the data packets without being affected by the application layer communication protocol and has a good redundant flow elimination effect and a good processing time effect.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Heterogeneous twin region selection network and image matching method based on same

The invention discloses a heterogeneous twin region selection network and an image matching method based on the same, and belongs to the field of computer vision. The system comprises a heterogeneous twin network and a regional matching network which are sequentially connected in series, wherein the heterogeneous twin network is used for extracting a feature map of a template map and a feature map of a to-be-matched map, the region matching network is used for obtaining a region matching result according to the feature map of the template map and the feature map of the to-be-matched map, the heterogeneous twin network comprises a sub-network A and a sub-network B which are connected in parallel, each sub-network comprises a feature extraction module, a feature fusion module and a maximum pooling module which are sequentially connected in series, the two sub-networks are the same in modules, and only convolution kernels of first-layer convolution of the feature extraction modules are different. The heterogeneous twin region selection network is applied to image matching, non-fixed-scale template and to-be-matched image input is achieved, image multi-layer characteristics are fully utilized, the performance of the matching method is effectively improved, and the matching success rate and speed are increased.
Owner:HUAZHONG UNIV OF SCI & TECH

Radar target track derivative system on the basis of information mining of real-equipment data and method thereof

The present invention belongs to the field of the radar simulation technology, and discloses an intelligent acquisition and intelligence automatic generation system on the basis of Agent radar real-equipment data and a method thereof. The system provided by the invention comprises a radar intelligence generation server and embedded acquisition devices. The first end of the radar intelligence generation server is connected with a plurality of embedded acquisition devices through a local area network, and each embedded acquisition device is connected with a real-equipment radar through the local area network or a RS485 netting twine and a RS232 netting twine; and the first end of the radar intelligence generation server is connected with a simulation application system of a radar data output device through the local area network or the RS485 netting twine and the RS232 netting twine, and the embedded acquisition devices are acquisition Agent hardware architectures. According to the invention, a plurality of real-equipment radar data may be acquired to realize radar real-equipment data mining and derivation of radar target track data, obtain optimal track truth values and noise models and synthesize the optimal track truth values and noise models to be a new radar simulation intelligence, therefore the application scope of the automatic generation technology of radar target tracks is further developed.
Owner:UNIT 63892 OF PLA

Three-dimensional building model library system construction method based on unmanned aerial vehicle aerial image sequence

The invention discloses a three-dimensional building model library system construction method based on an unmanned aerial vehicle aerial image sequence, and the method comprises the steps: employing an unmanned aerial vehicle to carry out the high-overlapping-rate shooting of the right upper part, front, rear, left and right directions of a building, and collecting the building image data; obtaining a sparse three-dimensional point cloud through an aerial triangulation method based on the building image data; carrying out dense matching on the sparse three-dimensional point clouds to obtain dense point clouds; taking the dense point cloud as input, obtaining a three-dimensional mesh model of the building based on a Delaunay triangulation algorithm, and performing texture mapping to obtain a three-dimensional model of the building with color textures; artificially repairing and manually migrating the building three-dimensional model, and constructing a building model database; and matching a corresponding three-dimensional building model by applying a keyword extraction technology based on a graph model. Compared with a classical SFM algorithm, the method is more suitable for construction of a three-dimensional building model database, a brand new means is provided for three-dimensional reconstruction of large objects, the building model matching success rate is increased, and the matching range is expanded.
Owner:HUAZHONG NORMAL UNIV

Low-voltage area network area-user relationship identification method based on data acquired by intelligent electric energy meter

The invention discloses a low-voltage area network area-user relationship identification method based on data acquired by intelligent electric energy meters, and the method comprises the following steps: collecting and obtaining a preset number of days of original voltage data of gateway intelligent electric energy meters and user intelligent electric energy meters in a to-be-identified low-voltage area network, cleaning the original voltage data, and obtaining the effective data of each intelligent electric energy meter; according to the obtained effective data of each intelligent electric energy meter, calculating a daily average value and a standard deviation value of the voltage of the intelligent electric energy meter; respectively carrying out correlation analysis on an average valuesequence and a standard deviation value sequence of the user intelligent electric energy meters and the gateway intelligent electric energy meters; and if the analysis result shows that correlation coefficients of the average value and the standard deviation value of the intelligent electric energy meter of a certain user and the intelligent electric energy meter of a certain gateway are the maximum values, judging that the two are matched. The identification method is based on a big data analysis method, and the calculated amount is relatively small; the method can accurately identify the area-user relationship and a meter-phase relationship, and can predict the identification accuracy.
Owner:STATE GRID SHAANXI ELECTRIC POWER RES INST +2

Grating material stereo-picture printing system and printing method thereof

The invention relates to a grating material stereo-picture printing system and a printing method thereof. The grating material stereo-picture printing system comprises a support panel (14), an objective table (6) arranged on the support panel (14), a printing device arranged above the objective table (6), a lighting device arranged beside the objective table (6), a first driving device for driving the objective table (6) to move longitudinally, a second driving device for driving the printing device to move transversely in relation to the objective table (6), and a control device for controlling the printing device, the lighting device, the first driving device and the second driving device. The grating material stereo-picture printing system has the following advantages of: 1, calculating the position of a grating in real time, realizing smart control on the movement of a printing head and effectively improving the matching success ratio of the grating with a stereo-picture; 2, causing an image to be more suitable for stereo printing so that the obtained stereo grating image has better stereo visual effect; and 3, directly printing on the rear part of the grating material, thereby avoiding the step of binding the grating with the paper needed for processing after printing and reducing the production cost.
Owner:WUHAN UNIV

Addresses matching fuzzy index and corresponding matching method and chain-type supplement means

The present invention relates to addresses matching fuzzy index and a corresponding matching method and a chain-type supplement means. The addresses matching fuzzy index herein establishes a set of fuzzy rules based on Chinese phonetic alphabets as well as the characteristics of the Chinese language like lots of phonetically similar words and lots of near homograph words, and a fuzzy processing is conducted on Chinese character strings by changing the same into phonetic character strings, and the fuzzy index is established. The addresses matching fuzzy index adopted in the present invention can strengthen fault tolerance of wrong words occurred in the address and obtain a fuzzy match, whereby a success rate of matching can be markedly increased. The chain-type supplement means herein can replace functions of a standard address database under certain circumstance and provide basis for connections among address factors, therefore increasing matching efficiency. The addresses matching fuzzy index and the corresponding matching method and the chain-type supplement means of the present invention overcome the problems of insufficient application of address characteristics, reduce the problem of low calculation efficiency caused by frequent traversing to the address database, and increase the success rate of matching under the premise of a guaranteed matching rate.
Owner:裴克铭管理咨询(上海)有限公司

Novel automatic aero-triangulation software

Novel automatic aero-triangulation software is disclosed. With wide application of unmanned aerial vehicles, responses to emergencies can be carried out by means of the unmanned aerial vehicles as a platform to perform photogrammetry. The software aims to aerial images, especially to aerial image treatment in the unmanned aerial vehicles. In the software, a feature extraction algorithm of large data is employed for treating the aerial images and a block adjustment of the large data is treated in a manner of internal and external memories, and meanwhile camera parameters are calculated.
Owner:王涛

Digital television and searching method for external input channels thereof

The invention discloses a digital television and a searching method for external input channels thereof. The searching method comprises the steps that the digital television controls external input equipment to switch channels, and displays a channel list or related channel information; the digital television captures a television picture and identifies channel names and channel numbers in the captured picture; the digital television interacts with a server so as to confirm the channel name and the channel number matched with the identified channel name and the channel number in a channel list database stored in the server; and the digital television outputs the matched channel name and the channel number so as to generate a channel list. According to the searching method, the digital television can confirm the corresponding relation of the external input channel name and channel number, and provides the corresponding relation for a user; when automatic identification is not correct, the user is allowed to input a correct channel number manually to correct the channel list, so as to realize right channel switching; and the invention provides users with a convenient solution for television channel direct switching in television applications, so that the users avoid unnecessary operations and prevent mistakes.
Owner:LG ELECTRONICS (CHINA) R&D CENT CO LTD

Emergency calling method and electronic equipment

The invention discloses an emergency calling method and electronic equipment. The method is applied to the electronic equipment and comprises steps as follows: initiating a call request carrying a call number in the absence of a card; acquiring the call request, analyzing the call number, performing inquiry according to the mapping relation between the call number and a current national emergency number, and feeding back an inquiry result; judging whether the received and fed inquiry result is that the call number is matched with the current national emergency number, if yes, allowing the call number to be called as the current national emergency number; otherwise, forbidding calling. With the adoption of the emergency calling method, problems of wrong matching and the heavy maintenance workload caused by adoption of existing emergency calls in the absence of cards are solved at least, numbers can be matched quickly, emergency calls are realized, and the calling success rate is increased.
Owner:LENOVO (BEIJING) CO LTD

Fault positioning, debugging method and system thereof

The key idea of the invention includes: getting the information about failure location and failure recovery transmitted from client side, and receiving and saving the failure information transmitted from client side; based on said information of failure location and failure recovery, determining the information of failure location and failure recovery corresponding to the failure information, and transmitting it to the relevant client side. The invention combines all methods for locating and clearing failure in time to gather many experiences from a lots of maintenance staff and to add them into the failure location and failure clearing system.
Owner:GLOBAL INNOVATION AGGREGATORS LLC

Straight line-based different-source image coupling method

The invention relates to the technical field of image processing and provides a straight line-based different-source image coupling method. The method includes the steps of extracting line characteristics of a reference image and line characteristics of a sensing image, and taking the line characteristics as elements of different-source image coupling; constructing a neighborhood relation betweenline end points and end points and a neighborhood relation between end points and lines, connecting the end points with the lines with the neighborhood relations, obtaining straight lines with betterstability, and constructing line sets accurately representing scene structures; constructing line pairs between the line sets of the reference image and the line sets of the sensing image, and calculating possible transformation parameters; and selecting transformation parameters that enable the sensing image and the reference image to have the highest similarity, and thus realizing coupling of the sensing image and the reference image. A phenomenon of double sides can be effectively prevented when road lines are extracted from an aviation image, the number of lines for coupling is greatly reduced, and the geometrical structure of a scene can be represented by as few lines as possible. The method is easy to realize, is fast in calculating speed and can realize quantitative analysis.
Owner:中国航天电子技术研究院

Space-borne synthetic aperture interferometer radar image registration method with use of feature point Voronoi diagram optimization

ActiveCN103886582AImprove the matching success rateIncrease the value of the interferometric coherence coefficientImage analysisPattern recognitionRadar
The invention relates to a space-borne synthetic aperture interferometer radar image registration method with feature point Voronoi diagram optimization. The method is mainly characterized in that the deployment strategy of a matching reference point is novel, the attribute information of statistical information, thematic information, topological information, metric information and the like of a feature point is fully considered. The method comprises the steps of (1) obtaining the space-borne InSAR complex image pair of a measured area, (2) calculating the energy image of one complex image in the image pair and carrying out filtering processing, (3) using a Forstner operator to extract a feature point in the filtered energy image, (4) constructing a Voronoi diagram for the extracted feature point and optimizing the feature point by using the Voronoi diagram, (5) using the optimized feature point and adopting a method related to maximum spectrum to search a same name point, (6) calculating a model parameter between two images according to the searched same name point pair, and (7) unifying the two images in the same image coordinate system by using the calculated model parameter. According to the method, the same name point search success rate and related coefficient value are raised, thus the optimized feature point is more reasonable in the distribution, the calculation precision of the model coefficient is raised, and thus the registration precision of the image pair is raised.
Owner:CHINESE ACAD OF SURVEYING & MAPPING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products