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1543results about How to "Improve matching efficiency" patented technology

Multi-method integrated license plate image positioning method

The invention relates to a license plate positioning method integrating multiple methods and adopting the steps as follows: pretreatment is carried out to collected license plate images; a self-adapting matching template is obtained by a self-adapting template matching method which is based on data stream correcting and coarse positioning of the license plate images is realized by a template matching algorithm; edge detection is conducted to the license plate images after the coarse positioning by utilizing morphology gradient method so as to highlight the character areas of the license plates; aiming at distorted license plate images, a method for detecting the main direction of the characters in the license plate images is adopted for correcting; a projection method is adopted for precise positioning so as to achieve precise positioning of the character areas of the license plates, thus realizing the precise positioning of the license plate images. The license plate image positioning method designed by the invention has low requirements on the adaptability of environment and high arithmetic speed, can fulfill the requirements of precision and real-time performance for license plate identification and provides high-quality license plate images for subsequent partitioning and identification of license plate characters.
Owner:CHONGQING UNIV

Method and device for matching users in game application

ActiveCN104436656AExact matchImprove matching accuracy and matching efficiencyVideo gamesWeb resourceMultimedia
The invention relates to a method and device for matching users in a game application. The method comprises the following steps that the historical primary attribute values of the users are acquired according to the historical game data of the users; the evaluating coefficients of current game running environment parameters of the users are acquired; processing is carried out according to the historical primary attribute values of the users and the evaluating coefficients of the current game running environment parameters, and the current primary attribute values of the users are obtained; the users with the current priamry attribute values meeting set conditions are matched as a group. According to the method and device for matching the users, the current game running environment parameters of the users are estimated, processing is carried out according to the evaluating coefficients of the environment parameters and the historical primary attribute values of the users, the current primary attribute values of the users are obtained, the users meeting the set conditions are matched, obtained matching is more accurate and reasonable, matching accuracy and matching efficiency are improved, the situation that a large number of users not meeting the set conditions are matched is avoided, and network resources are saved.
Owner:SHENZHEN TENCENT COMP SYST CO LTD

Method and device for matching regular expressions

The embodiment of the invention provides a method and device for matching regular expressions. The method comprises the following steps of: firstly, inputting a message to be matched and a DFA (Deterministic Finite Automaton) state table, wherein the DFA state table comprises a state transition table including transition relationships between all state addresses and each state in the matching process of the regular expressions; secondly, judging a data type corresponding to the present state, wherein the data type includes a single-character Char type and a multi-character Str type, and the data corresponding to the Str type are a plurality of continuous characters; if the data type is the Str type, matching a plurality of character values in the current state of the message to be matchedand the matching condition, and when matched, shifting to the next state satisfying the matching condition; if the data type is the Char type, matching a single character value at the current state in the message to be matched and the matching condition, and when matched, shifting to the next state satisfying the matching condition; and when the next state is an accept state, finishing the matching process and outputting a success result of matching. The method for matching regular expressions has high matching speed and high efficiency and the space occupied by the DFA items is small.
Owner:杨志杰

Method for evaluating real-time operation levels of wide-range urban public transport line networks on basis of GPS (global positioning system) data of buses

The invention discloses a method for evaluation real-time operation levels of wide-range urban public transport line networks on the basis of GPS (global positioning system) data of buses. The method includes preprocessing data; matching maps with one another; computing travel time indexes; computing station stopping time indexes; computing congestion indexes. Erroneous, repeated, missing and redundant data of the real-time GPS data are processed at the step for preprocessing the data; spatial-time locations of each single GPS point on the corresponding map are estimated at the step for matching the maps with one another; the travel time indexes are travel time indexes of each single bus on a single secondary road section on the basis of map matching data of the single bus, so that travel time indexes of whole road networks can be obtained; single stopping time of each single bus at each single station is computed according to the duration from the moment when the bus is positioned at the station to the moment when the bus leaves the station, and accordingly the station stopping time indexes of the stations can be solved; the travel time indexes and the station stopping time indexes are combined with one another and are analyzed and processed at the step for computing the congestion indexes, and an index which can represent the degree of crowdedness of the road sections by the aid of bus travel time and bus station stopping time can be ultimately solved.
Owner:济南全通信息科技有限公司

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

Storage, distribution and dispatching method and system

InactiveCN104376449AResolve asymmetryAchieve nearest matchLogisticsButt jointRanking
The invention discloses a storage, distribution and dispatching method and system. After goods information and/or vehicle information are/is obtained, vehicle information in a corresponding goods capacity area is extracted, and primary vehicle source information of goods is obtained; and/or goods information in a corresponding vehicle capacity area is extracted, and primary goods source information of vehicles is obtained. The primary vehicle source information is ranked according to the sequence from small to large of the distance between the vehicles and the corresponding goods, and the ranked front vehicle information of a first preset number is obtained and pushed; or the primary goods source information is ranked according to the sequence from small to large of the distance between the goods and the corresponding vehicles, and the ranked front goods information of second preset number is obtained and pushed. After the vehicles and the goods are subjected to primary matching and ranking according to the goods capacity area and the vehicle capacity area, the front vehicle information of the preset number and the front goods information of the preset number are extracted and pushed, the vehicles and the goods are matched nearby, optimal butt joint and configuration of resources between the distribution capacity and the goods to be distributed are achieved, and the matching efficiency is improved.
Owner:CHANGSHA LULIAN INFORMATION TECH CO LTD

Multi-sensor remote sensing image matching method

The invention discloses a multi-sensor remote sensing image matching method, belongs to the satellite image processing technology field and solves problems of geometric deformation and radiation difference of multi-sensor images. The method comprises steps that, a Gauss difference scale space for images is firstly established, and characteristic point detection is further carried out in the space; a phase consistency model having invariant illumination and contrast is introduced, phase consistency direction information is established and expanded for the phase consistency model, through a SIFT descriptor concept, a local characteristic descriptor-local phase consistency direction histogram is established by utilizing a phase consistency characteristic value and the characteristic direction; an European style distance between descriptors is taken as similarity measurement to carry out homonymy point identification, error matching points are eliminated, precise matching for the remote sensing images is realized. Compared with a traditional matching method, problems of geometric deformation and radiation difference of the remote sensing images can be effectively solved, image matching accuracy is improved, and the multi-sensor remote sensing image matching method is mainly applied to satellite image processing.
Owner:SOUTHWEST JIAOTONG UNIV

Drive identification method and system

The invention discloses a drive identification method and a drive identification system. The method comprises the following steps that: 1, a personal computer (PC) scans a visual local area network identifier (VID), a process identifier (PID) and a sequence number of peripheral universal serial bus (USB) equipment, and transmits the scanned VID, PID and sequence number to a drive server; and 2, the drive server identifies the model number of the peripheral USB equipment according to the VID, the PID and the sequence number, and transmits the address of a drive packet matched with the model number of the peripheral USB equipment and the type of an operating system of the PC to the PC. In the method and the system, the model number of the peripheral USB equipment is identified by utilizing the VID, PID and sequence number of the peripheral USB equipment, and the drive server matches a corresponding drive packet by utilizing the identified model number of the equipment and the type of the operating system of the PC, and transmits the address of the drive packet to the PC. The whole drive identification process is operated completely by the PC and the drive server, and compared with manual matching, the matching realized by the PC and the drive server achieves high matching efficiency, greatly saves time for a user and greatly improves user experiences.
Owner:迈奔灵动科技(北京)有限公司

Automatic impedance matching method for plasma reaction chamber

ActiveCN104377106AAutomates the impedance matching processImprove craftsmanshipElectric discharge tubesPower flowCoaxial cable
The invention relates to an automatic impedance matching method for a plasma reaction chamber. The method comprises the following steps that (a) an initial impedance value of an adjustable-impedance element is set; (b) whether reflection power measured on a coaxial cable is larger than a first threshold value or not is judged; if yes, the step (c) is performed, and if not, the step (b) is performed circularly; (c) whether the frequency of an RF power source is stable or not is judged; if yes, the step (d) is performed, and if not, the step (c) is performed circularly; (d) whether the reflection power measured on the coaxial cable is larger than a second threshold valve or not is judged; if yes, the step (e) is performed, and if not, the step (b) continues to be performed; (e) the impedance value of the adjustable-impedance element is adjusted through an adjusting step length, wherein the phase difference alpha between the adjusting step length and to-earth voltage and current and/or the value of V/Icosinealpha-50 are both positive or negative, and the second threshold value is larger than the first threshold value. The accurate impedance adjusting step length is provided for the adjustable-impedance element in the impedance matching circuit, and matching efficiency is improved.
Owner:ADVANCED MICRO FAB EQUIP INC CHINA

Method and device for matching security policy

The embodiment of the invention provides a method and device for matching a security policy, and relates to the technical field of the network security. The method comprises the following steps: receiving a communication message; performing accelerated matching processing on the communication message according to a dictionary tree corresponding to various pre-stored matching items, thereby obtaining a first matching result of various matching items of various matching rules; in various matching rules, determining that the first matching result of other matching items except the IP address matching item is the matched first matching rule; if the condition that the first matching result is an unmatched target IP address matching item is existent in the IP address matching item of the first matching rule, performing matching processing on the communication message according to discontinuous wildcard character mask objects in an address object group of the target IP address matching item,thereby obtaining a second matching result of the target IP address matching item, and determining the first matching result of the first matching rule according to the second matching result of the target IP address matching item. The matching efficiency of the safety policy can be improved by adopting the method disclosed by the application.
Owner:NEW H3C SECURITY TECH CO LTD

Method and device for dynamically matching cloud computing resources

The embodiment of the invention discloses a method and a device for dynamically matching cloud computing resources. The method comprises the following steps: acquiring and clustering the cloud computing resources and confirming a plurality of first species with the cloud computing resources and a clustering center of each of the first species; judging an offset of the clustering center of one of the first species, and while exceeding a preset offset, confirming the change in the cloud computing resources of the first species; when the cloud computing resources of the first species are changed, acquiring and clustering the cloud computing resources again, thereby acquiring a plurality of second species with the cloud computing resources; acquiring a request of a user for distributing the cloud computing resources; matching the corresponding cloud computing resources in the request with the cloud computing resources in the second species, acquiring a matching result and showing the matching result to the user, thereby enabling the user to use the cloud computing resources in the matching result. According to the embodiment of the invention, the change in the resources can be monitored in real time after the resources are clustered, the resources can be acquired and clustered again when the resources are changed and the dynamical resource matching can be realized.
Owner:BEIJING UNIV OF POSTS & TELECOMM
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