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40 results about "Elastic matching" patented technology

Elastic matching is one of the pattern recognition techniques in computer science. Elastic matching (EM) is also known as deformable template, flexible matching, or nonlinear template matching. Elastic matching can be defined as an optimization problem of two-dimensional warping specifying corresponding pixels between subjected images.

Scribble matching

The present invention relates to scribble matching methods, ie. methods for searching samples of electronic ink without having first to translate the ink into ASCII text. The methods of the present invention find application in pen-based computer devices. The invention entails the identification and encoding of velocity minima in the input scribble. Three scribble matching algorithms are described-a syntactic matcher, a word matcher and an elastic matcher. The syntactic matcher encodes the input scribble according to the shape of the scribble in the region of the velocity minima. The word matcher encodes the input scribble according to the heights of the velocity minima from a reference line, using a continuous height encoding scheme. The elastic matcher encodes the input scribble according to a classification of the velocity minima and intermediate points. The use of velocity minima in the encoding of scribble input provides a stable set of points and leads to improved performance in comparison with known scribble matching methods.
Owner:HEWLETT PACKARD DEV CO LP

Typing accuracy relaxation system and method in stylus and other keyboards

A system and method relaxing typing accuracy in stylus or other keyboards comprises recording a coordinate of a keystroke landing point, wherein the keystroke emanates from tapping a key on a keyboard, counting the number of tapped landing points, creating a set of words from a lexicon having the same amount of the tapped landing points, for each letter in each word in the set, computing the distance from the pattern formed by the landing coordinate to the pattern formed by the letters in words in a database, and selecting a word from the set having the shortest total distance, wherein the distance is a mean distance of all the tapped landing points for each word, or wherein the distance is an elastic matching distance between the tapped landing points and the coordinate.
Owner:IBM CORP

Signature matching

The invention is of an "elastic matching" method for comparing one signature against another, comprising the operations of creating a mapping between corresponding points in two signatures to be compared measured at different times after the commencement of writing the signatures which maximizes the correlation between the local spatial neighborhood of the measured points and simultaneously minimizes the curvature of the elastic spatial distortion from the mapping, providing quantitative measures of both the degree of the spatial correlations and the degree of the non-uniform spatial distortions in the mapping, thereby providing measures of the similarity between the signatures.
Owner:PENOP

Three-dimensional facial recognition method based on elasticity matching of facial curves

ActiveCN103246875AReduce time costOvercome surface deformationCharacter and pattern recognitionNoseElastic matching
A three-dimensional facial recognition method based on elasticity matching of facial curves comprises the following steps: firstly, performing pretreatment on a three-dimensional face, extracting a plurality of facial radial curves emitted from a nose top point, and performing resampling on the radial curves to extract useful points; then, performing layering elasticity matching on all radial curves of the detected face and corresponding curves of faces gathered in a library, and performing point distance matching on the curves according to point corresponding relations established between the detected face and the faces gathered in the library and by using distances between corresponding points and the nose top point; and lastly, performing weighting fusion on layering elasticity matching similarity and point distance matching similarity of the facial radial curves to be used as general similarity for recognition. The three-dimensional facial recognition method provided by the invention has a very good recognition capacity, and has better robustness to expressions, blocking and noises.
Owner:SOUTHEAST UNIV

Micro breaker having rapid closing device

The invention relates to a micro breaker having a rapid closing device and mainly solves a problem that difficulty in determining whether a breaker in the prior art breaks or not during use may mislead an operator to cause a safety accident. A handle comprises a toggle member and a lock member which are in common-pin sleeve connection, the lock member is provided with a clamp, the toggle member is provided with a notch for rotation motion of the clamp, a pin is sleeved by a limit torsion spring which drives the clamp to rotate anticlockwise, a casing is internally hinged with a clamping board, one end of the clamping board is in elastic matching with the casing through an elastic member, the other end of the clamping board is clamped with the clamp, one end of the clamping board corresponding to the handle is provided with an inclined plane, the inclined plane is in pressing matching with an outer contour of the handle, and disengaging or engagement of the clamping board and the clamp are realized in a rotation process of the handle. The micro breaker having the rapid closing device has advantages of fast closing speed, good safety and long service life.
Owner:ZHEJIANG TENGEN ELECTRIC

Improved sealed packaging container

The invention discloses an improved sealed packaging container. The improved sealed packaging container comprises a container cover and an open container body. The edge of the container cover outwardsextends to be provided with a first annular inner matching groove with a downward groove opening, the opening edge of the container body outwards extends to be provided with a second annular inner matching groove with a downward groove opening, the lower end portion of the outer groove wall of the first inner matching groove and the lower end portion of the outer groove wall of the second matching groove are sequentially outwards and upwards bent and extend to form a first annular outer matching groove with an upward groove opening and a second outer matching groove with an upward groove opening correspondingly. The first inner matching groove, the first outer matching groove, the second inner matching groove and the second outer matching groove are all elastic matching grooves. The second inner matching groove is embedded into the first inner matching groove, and the first outer matching groove is embedded into the second outer matching groove. The improved sealed packaging containeris further provided with an anti-trip structure. The outer groove wall of the first outer matching groove is in line contact with the outer groove wall of the second outer matching groove in an elastic abutting manner. The packaging container has relatively high anti-deformation capability, the anti-trip structure is relatively stable, and the sealing performance is relatively good.
Owner:MEIYANG PLASTIC METALS PRODS QUANZHOU

Axial-flow-type switch valve

The invention discloses an axial-flow-type switch valve, and belongs to the technical field of valves. The axial-flow-type switch valve comprises a first flange connecting sleeve, an executing mechanism piston cylinder and a second flange connecting sleeve which are mutually connected. A piston-type driving mechanism is arranged in the executing mechanism piston cylinder, the piston-type driving mechanism comprises a valve element of a cylindrical structure and a piston connected with the outer side of the valve element in a sleeved mode, a piston is in elastic matching with a spring pad arranged in the executing mechanism piston cylinder, one end of the valve element is in sealing matching with the first flange connecting sleeve, and the other end of the valve element is matched with a valve seat arranged in the second flange connecting sleeve. According to the axial-flow-type switch valve, the mode that an executing mechanism, the piston, the valve element, the valve seat and the flange connecting sleeves are coaxially combined is adopted, the valve structure design concept that in the prior art, an executing mechanism can only be arranged outside a valve body is broken through, and the defects that an existing piston-type executing mechanism is large in friction force, low in response speed, low in adjusting precision and large in leakage rate are overcome.
Owner:HANGZHOU LIANGGONG VALVES

DLC (Data Link Control) optical fiber connector assembly and plug thereof

The invention relates to a DLC (Data Link Control) optical fiber connector assembly and a plug thereof. The outer circumferential surface of an inner shell of the plug is provided with an elastic jaw which faces to the front end and is provided with a locking block at the front end head, a DLC plug module can be slidably arranged in an inner hole of the inner shell through a fixed plate fixed on the DLC plug module, the front end face of the fixed plate is in blocking matching with an inner convex baffle plate of the inner shell, the rear end face of the fixed plate is in elastic matching with a blocking step surface at the rear end of the inner shell through a thrust spring, an outer shell is sleeved on the periphery of the inner shell, the locking block of the elastic jaw is arranged in a locking hole of the outer shell and protrudes out of the outer circumferential surface of the outer shell, the front end of the inner hole of the inner shell is provided with a strip-shaped tongue piece arranged along the axle line of the inner shell, the outer surface of the strip-shaped tongue piece is attached on the wall of the inner hole of the inner shell, the inner surface of the strip-shaped tongue piece is used for pushing a duplexing clamp of the DLC plug, the strip-shaped tongue piece is fixedly arranged on the outer shell through the front end thereof, and the circumferential surface of the inner hole of the inner shell is provided with a pushing step for pushing the strip-shaped tongue piece to face to the front end when the outer shell drives the strip-shaped tongue piece to move backwards at the rear end head of the strip-shaped tongue piece.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD

Radiator assembly

The invention discloses an assembling structure of a radiator component (1) for a working machine. A radiating core body (10) and liquid storage chambers (12,14) connected with two ends of the radiating core body (10) are flexibly arranged on a radiator frame through elastic matching devices (22,23,24,240,204,20,202). The elastic matching device comprises elastic elements (22,23) arranged between the liquid storage chambers (12,14) and the radiator frame, elastic element limiting pieces (24,240,204) combined on the liquid storage chambers (12,14), and elastic element limiting pieces (20,202) combined on the radiator frame. The assembling structure can achieve the functions of reducing vibration and improving the reliability and the service life of a radiator, and is convenient to mount. The invention also discloses a method for assembling the radiator component and the working machine for mounting the radiator.
Owner:CATERPILLAR INC

Three-dimensional face recognition method for door lock

InactiveCN104392216AImprove matchOvercoming the influence of facial expressionsThree-dimensional object recognitionGraphicsElastic matching
The invention discloses a three-dimensional face recognition method for a door lock. The method comprises the following steps: (1) preprocessing a three-dimensional face; (2) extracting a plurality of radial curves radiated from the apex nasi point of the three-dimensional face, sampling the radial curves again, extracting usable points, and then building a point correspondence relation of the curves for reducing the influence of the data loss and shielding of hair on the face recognition effect; (3) performing layered elastic matching for each radial curve of the three-dimensional face and the corresponding curve of the face stored in a library; (4) matching the curves based on the distance from the corresponding point to the apex nasi point according to the built point correspondence relation of the tested face and the face stored in the library; (5) performing weight fusion for the two matching similarity of each curve to obtain the total similarity for recognizing. The method shows a good effect on matching the deformation graphics; the influence caused by the change on expression can be effectively overcome; therefore, the influence of the data loss and shielding of the air on the face recognition effect can be effectively reduced.
Owner:SUZHOU FUFENG TECH

Image processing method and apparatus using elastic mapping of vascular plexus structures

The invention relates to an image processing method and a medical observation device (1) such as a microscope (2) or endoscope. The device and method are used for displaying output image data (54) of soft biological tissue (12). In image-guided surgery, pre-operative three-dimensional image data (6) of the soft biological tissue (12) are elastically matched to interoperative image data (14) which are acquired during surgery. By displaying the elastically matched pre-operative three-dimensional image data (6) together with the interoperative image data (14), the surgeon may be made aware of the consistence of the soft biological tissue (12) below the visible surface layer. Existing systems for image-guided surgery need to be manually readjusted if surgery is done on soft biological tissue (12), which may deform and shift. To avoid this, the device and method according to the invention perform an elastic matching of the pre-operative three-dimensional image data (6) based on the interoperative image data (14) of the soft biological tissue (12). At least one vascular plexus structure (48) is first identified in the interoperative image data (14) and then the same vascular plexus structure (48) is identified in the pre-operative three-dimensional image data (6). The vascular plexus structure (48) in the pre-operative three-dimensional image data (6) is then elastically matched to the vascular plexus structure (48) in the interoperative image data (14). Output image data (54) are generated combining the elastically matched pre-operative three-dimensional image data (6) to the interoperative image data (14). Preferably, the at least one vascular plexus structure (48) is identified using fluorescent light from a fluorophore (22) which has been injected into the soft biological tissue (12).
Owner:LEICA INSTR SINGAPORE PTE

Ultra-low temperature and ultra-high pressure liquid hydrogen pump

The invention relates to the field of pump bodies, and discloses an ultra-low temperature and ultra-high pressure liquid hydrogen pump, which comprises a pump body (1), which is provided with a liquid inlet valve (2) and a liquid outlet valve (3), and the pump body (1) A piston rod (4) for controlling liquid discharge is also arranged inside, a sealing structure (5) is arranged on the piston rod (4), and a temperature regulating plate (101) is also arranged on the pump body (1). The sealing structure (5) in the present invention is connected in a certain order by a plurality of small parts and sleeved on the piston rod (4), and nitrogen gas is filled into the inside through the air filling hole (5b1) of the sealing bushing (5a1), It is sealed by nitrogen gas at high pressure and normal temperature, which has good sealing effect and is resistant to low temperature and high pressure; the liquid inlet valve (2) automatically controls the entry of liquid hydrogen through pressure, and the liquid outlet valve (3) is automatically controlled through the pressure of the liquid body, and The elastic force of the pressure spring (5c) cooperates with the conical head (1c1) for sealing, which ensures the high pressure and prevents the valve from being opened by the low pressure liquid.
Owner:韦达

Off-gear preventing self-lock pin for synchronizer of manual transmission

The invention discloses a self-lock pin for a synchronizer of a manual transmission. The self-lock pin comprises a buckling-type pedestal, a two-way volute spiral spring and a steel ball. The buckling-type pedestal is provided with a top part, a middle part and a lower half part. The middle part is provided with a shoulder part. The two-way volute spiral spring is installed on the shoulder part of the pedestal. Radial limiting of the steel ball can be achieved through the top part, and the steel ball can be pre-tightened in the pedestal under the elastic matching action of the spring. The invention further discloses the synchronizer with the self-lock pin and the manual transmission. The manual transmission can generate self-lock force to achieve off-gear preventing in the on-gear process. According to the self-lock pin for the synchronizer of the manual transmission, the high-precision small-sized injection molding buckling-type pedestal is adopted to be matched with the innovative two-way volute spiral spring so that spring force can be provided; the structure is compact, mounting and positioning are easy and convenient, and the effect that apt self-lock force can be achieved after a gear sleeve of the synchronizer is geared, and thus trip-over stop of the transmission can be prevented is guaranteed; and meanwhile, reliability of a gear-selection and shifting mechanism using the limiting decoupling design is improved, and hence the gear jittering problem caused by axial vibration of the gear sleeve and a shifting fork transmission shaft system is effectively solved.
Owner:SAIC GENERAL MOTORS +1

Sealed packing container

The invention discloses a sealed packing container. The sealed packing container comprises a container cover and an opened container body; an annular first inner matching groove and an annular secondinner matching groove, with downward groove openings, are arranged on the edge of the container cover and the opening edge of the container body in an outward extending manner; the lower ends of outergroove walls of the first inner matching groove and the second inner matching groove are outwards and upwards bent to extend to form an annular first outer matching groove and an annular second outermatching groove with upward groove openings; the first inner matching groove, the first outer matching groove, the second inner matching groove and the second outer matching groove are all elastic matching grooves; the second inner matching groove is nested in the first inner matching groove; the first outer matching groove is nested in the second outer matching groove; and unfastening preventionstructures are provided. The inner groove wall of the first inner matching groove and the inner groove wall of the second inner matching groove, and / or the outer groove wall of the first inner matching groove and the outer groove wall of the second inner matching groove are in line contact in an elastic abutting mode. The packing container is higher in deformation resistance, more stable in unfastening prevention structure and better in sealing performance.
Owner:MEIYANG PLASTIC METALS PRODS QUANZHOU

Elastic lock buckle and bracelet thereof

The invention discloses an elastic lock buckle, which comprises a lock buckle element and a lock hook element, wherein the lock buckle element comprises a lock buckle body; a groove is formed in the lock buckle body; a lock hole in which the lock hook element can be inserted is formed in the groove wall of the groove; a locking element is also arranged in the groove; an elastic element is arrangedbetween the bottom end of the locking element and the bottom wall of the groove; a position limiting hole, a clamp hook matched with the lock hook element, and a position limiting rod passing throughthe position limiting hole and the side wall of the groove are also arranged on the locking element; when the locking element is pressed, the elastic element is compressed, so that the lock hook element and the lamp hook are released; otherwise, under the elastic effect of the elastic element, the clamp hook is locked with the lock hook element. The elastic lock buckle and a bracelet thereof hasthe advantages that the lock buckle element and the lock hook element are connected in an elastic matching mode; the opening and closing of the bracelet can be conveniently and quickly realized; during the wearing, great convenience is realized; meanwhile, the lock hook is reliable and cannot easily be lost.
Owner:中科国金股份有限公司

Improved sealing packaging container

The invention discloses an improved sealing packaging container. The improved sealing packaging container comprises a container cover and an open container body; the edge of the container cover and the opening edge of the container body extend outwards to be provided with a first inner matching groove with a downward notch and a second inner matching groove with a downward notch, and the lower ends of the outer groove walls of the first inner matching groove and the second inner matching groove are bent and extend outwards and upwards in sequence to be provided with a first outer annular matching groove with an upward notch and a second outer annular matching groove with an upward notch; the first inner matching groove, the first outer matching groove, the second inner matching groove andthe second outer matching groove are all elastic matching grooves; the second inner matching groove is nested in the first inner matching groove, and the first outer matching groove is nested in the second outer matching groove; the improved sealing packaging container is further provided with anti-tripping structures; and at least one pair of corresponding groove walls of the first inner matchinggroove and the first outer matching groove are in a matched tapered shape and are attached together, and at least one pair of corresponding groove walls of the second inner matching groove and the second outer matching groove are in a matched tapered shape and are attached together. The packaging container has the high anti-deformation capability, the anti-tripping structures are stable, and thesealing performance is good.
Owner:MEIYANG PLASTIC METALS PRODS QUANZHOU

Elastic anti-overflow recovery device and recovery method of roller coating equipment

The invention relates to an elastic anti-overflow recovery device and a recovery method of roller coating equipment, which can collect surplus paint generated in roller coating and can effectively prevent paint from overflowing. A spring module is fixed on a stand, and a material collector is located between the spring module and a drum module, wherein the material collecting edge of the material collector is matched with the end faces of the drum module in an elastic mode. The invention realizes the automatic compensation of the material collector and the two end faces of the drum through the elastic matching of the material collector and the two end faces of the drum, thereby saving paint without polluting the roller coating equipment and the production environment and realizing anti-overflow and recovery functions.
Owner:木川(杭州)机械有限公司

Textile bobbin

The invention relates to a textile bobbin which comprises a frustum-shaped bobbin body. A through hole for mounting is formed in the bobbin body, and the bobbin body is sleeved with an outer pipe body. The textile bobbin is characterized in that the bobbin body and the outer pipe body are matched through an elastic matching device; the elastic matching device comprises locating blocks and springs, receding pits are formed in the outer wall of the bobbin body, and locating grooves are formed in the inner wall of the outer pipe body; the springs are arranged in the receding pits, and the locating blocks and the top ends of the springs are jacked into the locating grooves through elastic force of the springs. The textile bobbin has the advantages that the bobbin body and the outer pipe body are matched through the locating blocks and the springs, the outer pipe body can be dismounted conveniently, the outer pipe body can be replaced at any time after being abraded, and production and use cost is lowered.
Owner:XINCHANG HUAXIONG MACHINERY

All-dimensional adjustable material receiving device

The invention discloses an all-dimensional adjustable material receiving device. Two material block edges (1, 2), angle and up-down adjusting plates (3) and a material box bottom support (5) are fixedtogether with screws to form an upper assembly. Bottom support plates (7) are connected to an outer bottom plate by two front-rear adjusting screws (4) to form a lower assembly. The upper and lower assemblies perform up-down and angle adjustment on the upper assembly through elastic matching of two up-down adjusting screws (6) and a flat spring washer. The bottom support plates (7) can perform front-rear adjustment on the whole assembly by the elastic property of the two front-rear adjusting screws (4). The all-dimensional adjustable material receiving device effectively realizes the materialreceiving uniformity through the elastic matching adjustment of the screws, the structure is very simple, the device working stability is good, the operation is reliable, and economy is achieved.
Owner:THEWAY SHANGHAI INSTR TECH

Hairdressing device with elastic latches for controlling mounting and dismounting of knife head

The invention discloses a hairdressing device with elastic latches for controlling mounting and dismounting of a knife head. The hairdressing device comprises a host component, a knife head component and a latch component, wherein the host component comprises an upper housing and a lower housing that are clamped and fixed with each other; fixing columns are arranged at the front end in the lower housing; the knife head component comprises a knife head part and a knife holder; oblique guide surfaces are symmetrically arranged on the two sides of the upper end of the knife holder; the latch component comprises a latch support, the latches, latch springs, pressing sheets and fixing screws; the latch support is assembled at the front ends in the upper housing and the lower housing; latch guide grooves are formed on the two sides of the latch support; screw holes are formed at the rear end of the latch support; the latches are assembled in the latch guide grooves; the latch springs are connected with the latches in an elastic matching manner; the front ends of the pressing sheets are connected with the latch springs in a matching manner; through holes are formed at the rear ends of the pressing sheets; the fixing screws penetrate through the through holes, and are connected with the screw holes in a threaded manner and then connected and fixed with the fixing columns in a threaded manner; and the latches are connected with the oblique guide surfaces in a matching manner. The device is simple in structure; the knife head is assembled securely and cannot fall off easily; and the device is comfortable to use, convenient and quick to mount and dismount, low in production cost and long in service life.
Owner:宁波邦首电器有限公司

A kind of high elastic matching wind turbine blade anti-corrosion coating

The invention discloses a high-flexible matching property anticorrosive coating for a blade of a wind driven generator. The high-flexible matching property anticorrosive coating comprises a priming paint with epoxy resin as a base material and a finishing paint with high-flexibility acrylic resin as a base material, wherein the priming paint comprises the following components in percent by weight: 40-50 percent of epoxy resin, 5-15 percent of linear toughening modifier, 8-15 percent of pigment, 15-20 percent of functional filler, 5-20 percent of diluting agent and 5-15 percent of curing agent; and the finishing paint comprises the following components in percent by weight: 50-65 percent of acrylic resin, 15-25 percent of titanium white, 8-15 percent of diluting agent and 5-10 percent of weather-resistant curing agent. According to the high-flexible matching property anticorrosive coating, by using excellent flexibility of the priming paint and the finishing paint and the excellent flexible matching between the priming paint and the finishing paint, the coating for the blade of the wind driven generator has a better anti-fatigue property.
Owner:NANJING CHANGJIANG PAINT

A small circuit breaker with quick closing device

The invention relates to a micro breaker having a rapid closing device and mainly solves a problem that difficulty in determining whether a breaker in the prior art breaks or not during use may mislead an operator to cause a safety accident. A handle comprises a toggle member and a lock member which are in common-pin sleeve connection, the lock member is provided with a clamp, the toggle member is provided with a notch for rotation motion of the clamp, a pin is sleeved by a limit torsion spring which drives the clamp to rotate anticlockwise, a casing is internally hinged with a clamping board, one end of the clamping board is in elastic matching with the casing through an elastic member, the other end of the clamping board is clamped with the clamp, one end of the clamping board corresponding to the handle is provided with an inclined plane, the inclined plane is in pressing matching with an outer contour of the handle, and disengaging or engagement of the clamping board and the clamp are realized in a rotation process of the handle. The micro breaker having the rapid closing device has advantages of fast closing speed, good safety and long service life.
Owner:ZHEJIANG TENGEN ELECTRIC

Radiator assembly

The invention discloses an assembling structure of a radiator component (1) for a working machine. A radiating core body (10) and liquid storage chambers (12,14) connected with two ends of the radiating core body (10) are flexibly arranged on a radiator frame through elastic matching devices (22,23,24,240,204,20,202). The elastic matching device comprises elastic elements (22,23) arranged betweenthe liquid storage chambers (12,14) and the radiator frame, elastic element limiting pieces (24,240,204) combined on the liquid storage chambers (12,14), and elastic element limiting pieces (20,202) combined on the radiator frame. The assembling structure can achieve the functions of reducing vibration and improving the reliability and the service life of a radiator, and is convenient to mount. The invention also discloses a method for assembling the radiator component and the working machine for mounting the radiator.
Owner:CATERPILLAR INC

DLC (Data Link Control) optical fiber connector assembly and plug thereof

The invention relates to a DLC (Data Link Control) optical fiber connector assembly and a plug thereof. The outer circumferential surface of an inner shell of the plug is provided with an elastic jaw which faces to the front end and is provided with a locking block at the front end head, a DLC plug module can be slidably arranged in an inner hole of the inner shell through a fixed plate fixed onthe DLC plug module, the front end face of the fixed plate is in blocking matching with an inner convex baffle plate of the inner shell, the rear end face of the fixed plate is in elastic matching with a blocking step surface at the rear end of the inner shell through a thrust spring, an outer shell is sleeved on the periphery of the inner shell, the locking block of the elastic jaw is arranged in a locking hole of the outer shell and protrudes out of the outer circumferential surface of the outer shell, the front end of the inner hole of the inner shell is provided with a strip-shaped tonguepiece arranged along the axle line of the inner shell, the outer surface of the strip-shaped tongue piece is attached on the wall of the inner hole of the inner shell, the inner surface of the strip-shaped tongue piece is used for pushing a duplexing clamp of the DLC plug, the strip-shaped tongue piece is fixedly arranged on the outer shell through the front end thereof, and the circumferential surface of the inner hole of the inner shell is provided with a pushing step for pushing the strip-shaped tongue piece to face to the front end when the outer shell drives the strip-shaped tongue pieceto move backwards at the rear end head of the strip-shaped tongue piece.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD

A 3D Face Recognition Method Based on Facial Curve Elastic Matching

ActiveCN103246875BReduce time costOvercome surface deformationCharacter and pattern recognitionNoseElastic matching
A three-dimensional facial recognition method based on elasticity matching of facial curves comprises the following steps: firstly, performing pretreatment on a three-dimensional face, extracting a plurality of facial radial curves emitted from a nose top point, and performing resampling on the radial curves to extract useful points; then, performing layering elasticity matching on all radial curves of the detected face and corresponding curves of faces gathered in a library, and performing point distance matching on the curves according to point corresponding relations established between the detected face and the faces gathered in the library and by using distances between corresponding points and the nose top point; and lastly, performing weighting fusion on layering elasticity matching similarity and point distance matching similarity of the facial radial curves to be used as general similarity for recognition. The three-dimensional facial recognition method provided by the invention has a very good recognition capacity, and has better robustness to expressions, blocking and noises.
Owner:SOUTHEAST UNIV

Scribble matching tech

The present invention relates to scribble matching methods. The invention entails the identification and encoding of velocity minima in the input scribble. Three scribble matching algorithms are described: a syntactic matcher, a word matcher and an elastic matcher. The syntactic matcher encodes the input scribble according to the shape of the scribble in the region of the velocity minima. The word matcher encodes the input scribble according to the heights of the velocity minima from a reference line, using a continuous height encoding scheme. The elastic matcher encodes the input scribble according to a classification of the velocity minima and intermediate points.
Owner:HEWLETT PACKARD CO

Target recognition method based on elastic matching

The invention discloses a target identification method based on elastic matching. The method comprises the following steps: S1, adopting the contour extraction algorithm to extract the contour features of a target; S2, calculating the curvature value of each point on the contour of the target; S3, achieving hierarchical description of the contour points according to the size of the curvature value; S4, adopting PCA-SC distance to achieve similarity measurement of the contour features of different targets in a segmented manner; S5, achieving reliability measurement of the contour features of the targets in a segmented manner; S6, normalizing the target similarity and reliability indexes and adopting the elastic matching distance for target post-identification. The target identification method can realize effective similarity measurement of shapes of the targets, has a larger distinction degree for target characteristic description, has dimension invariance, rotation invariance and traversing invariance, improves the accuracy and the robustness in identification and reduces the calculation complexity.
Owner:SUZHOU NEW VISION SCI & TECH
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