WO2006054645A1 - 照合方法、照合システム、コンピュータ、およびプログラム - Google Patents
照合方法、照合システム、コンピュータ、およびプログラム Download PDFInfo
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- WO2006054645A1 WO2006054645A1 PCT/JP2005/021126 JP2005021126W WO2006054645A1 WO 2006054645 A1 WO2006054645 A1 WO 2006054645A1 JP 2005021126 W JP2005021126 W JP 2005021126W WO 2006054645 A1 WO2006054645 A1 WO 2006054645A1
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- registration information
- collation
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- registration
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- 238000000034 method Methods 0.000 title claims description 63
- 238000012795 verification Methods 0.000 claims description 84
- 238000004891 communication Methods 0.000 claims description 54
- 230000009466 transformation Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 102100036848 C-C motif chemokine 20 Human genes 0.000 description 1
- 101000713099 Homo sapiens C-C motif chemokine 20 Proteins 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
- G06T7/37—Determination of transform parameters for the alignment of images, i.e. image registration using transform domain methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/48—Extraction of image or video features by mapping characteristic values of the pattern into a parameter space, e.g. Hough transformation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/753—Transform-based matching, e.g. Hough transform
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
Definitions
- Verification method verification method, verification system, computer, and program
- the present invention relates to a collation method, a collation system, a computer, and a program for collating images, for example.
- a collation device that performs biometrics authentication using biometric features unique to a user is known.
- biometric features such as fingerprints or blood vessel patterns that exhibit characteristics that do not change almost throughout life as biometric features.
- the present invention has been made in view of strong circumstances, and an object thereof is to provide a collation method, a collation system, a computer, and a program with high security. Means for solving the problem
- a collation method is a collation method for collating images using registration information, and a registered image based on a set first parameter.
- the second registration information obtained by processing the registration image based on a second parameter different from the first parameter is used for the verification.
- the collation method provides the parameter obtained by applying a generalized Hough transform process to a registered image based on a set parameter.
- a collation method is a collation method of a collation system including a terminal device and a collation device that collates the input image of the terminal device.
- the first registration information specific to the first parameter obtained by processing the registered image based on the set first parameter is designated as the registration information used for the collation, and Storing the designated registration information in the first storage means of the verification device and storing the registration information in the second storage means of the terminal device; and the designation in the first step
- the registration information change instruction is received after the registration, the second registration information obtained by processing the registration image based on the second parameter different from the first parameter is compared with the verification.
- registration information used for A second step of storing the registration information in the first storage means and the second storage means; and the registration information stored in the first storage means by the verification device; The registration information stored in the storage means is compared, and if they match as a result of the comparison, the image input from the terminal device and the first storage means are stored in the first storage means! And a third step of performing a matching process based on the information.
- a collation system is a collation system including a terminal device and a collation device that collates the terminal device force input image
- the collation device is a first communication unit that performs data communication with the terminal device, a first storage unit, and the registration image obtained by processing a registered image based on the set first parameter at the time of registration. If the first registration information unique to the first parameter is designated as the registration information used for the collation, and the designation information is changed after the designation is made, the first parameter is different from the first parameter.
- Second registration information obtained by performing the processing on the registered image based on a second parameter is designated as registration information used for the collation, the registration information is stored in the first storage means, and The registration information is Means of communication The registration information stored in the first storage unit and the registration information received from the terminal device via the first communication unit at the time of verification.
- a first control unit that performs a matching process on the basis of the image received from the terminal device and the registration information stored in the first storage means when the comparison results in a match.
- the terminal device includes: a second communication unit that performs data communication with the verification device; an input unit that inputs at least the image; a second storage unit; and the second unit from the verification device during registration.
- the registration information received via the communication means is stored in the second storage means, and the image inputted from the input means and the registration information read from the second storage means at the time of collation are stored in the second storage means.
- a computer is a computer that collates images using registration information, and registers images based on a set first parameter.
- first registration information specific to the first parameter obtained by processing is designated as the registration information used for the collation, and after the designation is made, an instruction to change the registration information is received.
- control means for designating second registration information obtained by processing the registration image based on a second parameter different from the first parameter as registration information used for the collation.
- a program according to a sixth aspect of the present invention is a program executed by a computer that collates images using registered information, and is a set first parameter A first step of designating first registration information specific to the first parameter obtained by processing a registered image based on the first registration information as the registration information used for the collation; and When the registration information change instruction is received after the designation, the second registration information obtained by processing the registered image based on the second parameter different from the first parameter is And a second step specified as registration information used for verification.
- FIG. 1 is a functional block diagram of a collation system according to an embodiment of the present invention.
- FIG.2 Explains the generalized Hough transform process at the time of image registration of the collation system 10 shown in Fig.1 FIG.
- FIG. 3 is a diagram for explaining an R-table as registration information of the collation system 10 shown in FIG. 1.
- FIG. 4 is a flowchart for explaining the operation of the collation system 10 shown in FIG.
- FIG. 5 is a flowchart for explaining the operation at the time of registration of the terminal device 1 of the verification system 10 shown in FIG. 1.
- FIG. 6 is a flowchart for explaining an operation at the time of registration of the collation device 2 of the collation system 10 shown in FIG. 1.
- FIG. 6 is a flowchart for explaining an operation at the time of registration of the collation device 2 of the collation system 10 shown in FIG. 1.
- FIG. 7A to FIG. 7C are diagrams for explaining the operation at the time of verification of the terminal device 1 shown in FIG.
- FIG. 7A is a diagram showing an R-table as registration information.
- FIG. 7B is a diagram for explaining processing for determining a pixel position for collation judgment.
- FIG. 7C is a diagram for explaining processing for determining a pixel position for collation judgment using the R table and collation image shown in FIG. 7A.
- FIG. 8 is a flowchart for explaining the operation at the time of verification of the terminal device 1 of the verification system 10 shown in FIG. 1.
- FIG. 9 is a flowchart for explaining the operation at the time of collation of collation device 2 of collation system 10 shown in FIG. 1. Explanation of symbols
- FIG. 1 is a functional block diagram of a collation system according to an embodiment of the present invention.
- a collation system 10 is a system that performs collation based on ecological features, and is a collation method that collates images using registration information in which ecological features are registered.
- First registration information specific to the first parameter obtained by generalized Hough transform processing of the registered image based on the set first parameter is specified as registration information used for verification, and is specified.
- the second registration information obtained by performing the generalized Hough transform processing on the registered image based on the second parameter different from the first parameter is used for registration. Specify as information.
- the collation system 10 performs collation processing based on the input image and designated registration information at the time of collation.
- a collation system 10 includes a terminal device and a collation device (server device) 2 as shown in FIG. 1, for example.
- the verification system 10 corresponds to an example of a verification system according to the present invention
- the terminal device 1 corresponds to an example of a terminal device according to the present invention
- the verification device 2 corresponds to an example of a verification device according to the present invention. To do.
- terminal device 1 and the verification device 2 correspond to an example of a computer according to the present invention.
- the verification device (server device) 2 is operated and managed by the verification service provider, and the terminal device 1 is operated by the user.
- the terminal device 1 and the verification device 2 are connected by a data communication path 3, for example.
- the data communication path 3 is a so-called communication network such as the Internet.
- the terminal device 1 includes a communication interface (IZF) 11, a user information input unit 12, a biometric feature input unit 13, a storage unit 14, a memory 15, and a control circuit (CPU: Central processing unit) 16 do.
- IZF communication interface
- CPU Central processing unit
- Each component is connected by a bus BS100 as shown in FIG.
- the communication IZF 11 corresponds to an example of a second communication unit according to the present invention.
- the biometric feature input unit 13 corresponds to an example of an input unit according to the present invention.
- the storage unit 14 corresponds to an example of a storage unit according to the present invention.
- the control circuit 16 corresponds to an example of the second control means of the present invention.
- Communication IZFI I performs data communication with collation device 2 via data communication path 3 under the control of control circuit 16 and outputs a communication result to control circuit 16.
- the user information input unit 12 outputs, for example, user information input at the time of registration to the control circuit 16.
- the user information is user attribute data such as the user's name and gender.
- the user information input unit 12 includes, for example, a keyboard, a mouse, a touch panel, and the like.
- the biological feature input unit 13 images a subject and outputs an image corresponding to the imaging result to the control circuit 16 as a signal S13.
- the biometric feature input unit 13 outputs user-specific biometric feature information such as a user's fingerprint and vein pattern to the control circuit 16 as an image signal.
- the biometric feature input unit 13 is generally configured by an imaging element such as a CCD (Charge coupled device) or a CMOS (Complementary Metal-Oxide Semiconductor).
- an imaging element such as a CCD (Charge coupled device) or a CMOS (Complementary Metal-Oxide Semiconductor).
- the storage unit 14 stores, for example, registration information corresponding to a registered image, registration information (R-table) RT1 generated by the collation device 2 described later in the present embodiment.
- the storage unit 14 is configured by a storage device such as a node disk drive (HDD) or a semiconductor memory.
- the memory 15 is used as a work area for the control circuit 16, for example.
- the memory 15 is configured by a storage device such as RAM (Random access memory) and ROM (Read only memory).
- the memory 15 stores a program (PRG1) including functions according to the present invention, initial values, and the like.
- PRG1 a program including functions according to the present invention, initial values, and the like.
- the control circuit 16 comprehensively controls the entire terminal device.
- the control circuit 16 implements the function according to the present invention by executing the program (PRG1).
- the control circuit 16 stores, for example, registration information (R-table) RT1 received from the verification device 2 via the communication IZF11 during registration in the storage unit 14, and is input from the biometric feature input unit 13 during verification.
- the collation image and the registration information RT1 read from the storage unit 14 are transmitted to the collation device 2 via the communication IZF11.
- the verification device 2 includes a communication interface (IZF) 21, a database 22, An image processing unit 23, a random number generation unit 24, a table generation unit 25, a comparison unit 26, a collation calculation processing unit 27, a memory 28, and a control circuit (CPU: Central processing unit) 29 are included.
- IZF communication interface
- CPU Central processing unit
- Each component is connected by a nose BS 200 as shown in FIG.
- the communication IZF 21 corresponds to an example of a first communication unit according to the present invention.
- the database 22 corresponds to an example of storage means and first storage means according to the present invention.
- the image processing unit 23, the random number generation unit 24, the table generation unit 25, the table comparison unit 26, the collation calculation processing unit 27, and the control circuit 29 correspond to an example of the control unit and the first control unit according to the present invention.
- the communication IZF 21 performs data communication with the terminal device 1 via the data communication path 3 under the control of the control circuit 29, for example, and outputs the communication result to the control circuit 29.
- the database 22 stores user registration information (R-table) RT1 under the control of the control circuit 29, for example.
- the database 22 is composed of a storage device such as a node disk (HDD) device, a magneto-optical disk, or a semiconductor memory.
- the image processing unit 23 for example, performs communication iZ as necessary, for example, under the control of the control circuit 29.
- the image input by F21 is subjected to image processing as pre-processing for generating registration information RT1 according to the present invention, and the processing result is output.
- the image resulting from the processing by the image processing unit 23 is used at the time of registration and verification.
- the image processing unit 23 performs, for example, a fine line key process on an image pattern in the image.
- This fine line key process corresponds to, for example, a process of extracting information indicating the characteristics of biological information.
- the random number generator 24 generates a random number for determining a parameter according to the present invention, for example.
- the table generation unit 25 performs a process of generating different registration information on the registered image according to, for example, parameters, and stores the registration information generated by the process in the database 22.
- the table generation unit 25 performs generalized Hough conversion processing on the registered image based on the set parameters to generate table information as registration information, and stores the generated registration information in the database 22.
- FIG. 2 is a diagram for explaining a generalized Hough conversion process at the time of image registration of the matching system 10 shown in FIG.
- FIG. 3 is a diagram for explaining the R-table as registration information of the verification system 10 shown in FIG.
- the table generation unit 25 performs, as general i-hough transform, an image at a pixel position P (x, y) on the image pattern IP in the registered image AIM as shown in FIG.
- the first angle information ⁇ (x, y) indicating the angle between the straight line L2 perpendicular to the tangent line TL1 of the pattern IP and the straight line BLX passing through the pixel position P (X, y) and parallel to the reference axis (x axis),
- the pixel position P (x, y) and the set position also referred to as the reference point
- the set parameter BP (X, y) Distance indicating the distance
- Registration information (table) RT1 for associating second angle information ⁇ (X, y) indicating an angle with LX is generated.
- a straight line r including the pixel position P (X, y) and the set position BP (x, y) is represented in the present embodiment.
- Equation 1 the setting position (reference point) BP (x, y) as a parameter is expressed by Equation 1 and Equation 2.
- the distance can be expressed using the first angle ⁇ (X, y) and the second angle (X, y).
- the table generation unit 25 calculates the value of (r, ⁇ ) for all points on the image pattern in the image by calculation, classifies the first angle ⁇ as an index, For example, registration information (R-table) RT1 as shown in FIG. 3 is generated.
- the registration information RT1 has a feature that it is different every time the shape of the image pattern in the image is different and every time the reference point is different for the same shape.
- the control circuit 29 stores the registration information RT1 in the database 22 in association with the user information, and transmits it to the terminal device 1 via the communication IZF21. Terminal device 1 is sent from collation device 2. The received registration information RT1 is stored in the storage unit 14.
- the table comparison unit 26 compares the registration information RT1 stored in the database 22 with the registration information RT1 stored in the storage unit 14 of the terminal device 1, and the result of the comparison is compared.
- the indicated signal is output to the control circuit 29.
- the control circuit 29 causes the collation processing unit 27 to perform collation processing to be described later when it is determined as a result of the comparison by the table comparison unit 26. Suppress processing.
- the collation calculation processing unit 27 performs collation processing, which will be described later, based on the input collation image and the registration information RT1 stored in the database 22.
- the memory 28 is used as a work space for the control circuit 29, for example.
- the memory 28 is constituted by a storage device such as RAM or ROM, for example.
- the memory 28 stores a program (PRG2) including functions according to the present invention, initial values, and the like.
- PRG2 program including functions according to the present invention, initial values, and the like.
- the control circuit 29 comprehensively controls the entire verification device.
- the control circuit 29 implements the function according to the present invention by executing the program (PRG2).
- the control circuit 29 uses the first registration information RT1 specific to the first parameter obtained by processing the registered image AIM based on the set first parameter for verification.
- the registration information RT1 is obtained by processing the registration image AIM based on the second parameter different from the first parameter.
- the second registration information RT1 is designated as registration information RT1 used for verification.
- control circuit 29 stores the specified registration information RT1 in the database 22, and outputs the registration information RT1 to the terminal device 1 via the communication IZF21.
- the stored registration information RT1 is compared with the registration information RT1 received from the terminal device 1 via the communication IZF21.
- the verification process is performed based on the registration information RT1 stored in the database 22.
- FIG. 4 is a flowchart for explaining the operation of the matching system 10 shown in FIG.
- step ST1 the collation device 2 registers the registration screen based on the set first parameter.
- the first registration information RT1 specific to the first parameter obtained by applying generalized Hough transform processing to the image AIM is specified as registration information used for verification.
- step ST2 the collation device 2 determines whether or not an instruction to change the registration information RT1 has been received after the designation in step ST1, and if it is determined that the input has been received, step ST3 If it is determined that no input has been received, the process proceeds to step ST4.
- step ST3 the collation device 2 collates the second registration information RT1 obtained by subjecting the registered image AIM to the generalized Hough transform process based on the second parameter different from the first parameter. Is designated as registration information RT1 to be used in step ST4, and the process proceeds to step ST4.
- step ST4 the collation apparatus 2 performs collation processing based on the input collation image RIM and the specified registration information RT1.
- FIG. 5 is a flowchart for explaining the operation at the time of registration of the terminal device 1 of the verification system 10 shown in FIG. With reference to FIG. 5, the operation at the time of registration of the terminal device 1 will be described focusing on the operation of the control circuit 16 and the like.
- step ST 11 user information such as a user name, sex, age information, and the like is input from the user information input unit 12 to the control circuit 16.
- step ST12 an image signal S13 indicating a user-specific biometric feature is input from the biometric feature input unit 13 to the control circuit 16.
- step ST13 the control circuit 16 transmits the user information and the registered image (biometric feature information) AIM to the verification device 2 via the communication IZF11.
- step ST14 the control circuit 16 waits until the registration information RT1 corresponding to the previously transmitted registration image AIM is received from the collation device 2, and if received, proceeds to the processing of step ST15.
- step ST15 the control circuit 16 stores (stores) the registration information (template) RT1 received from the verification device 2 via the communication IZF 11 in the storage unit 14.
- FIG. 6 is a flowchart for explaining an operation at the time of registration of collation device 2 of collation system 10 shown in FIG. Referring to Fig. 6, the operation of registration device 2 during registration The explanation will focus on the operation of Route 29, etc.
- control circuit 29 of matching device 2 determines whether or not user information or registered image (biometric feature information) AIM is received from terminal device 1 through communication IZF21, and waits until it is received. . If the control circuit 29 determines that it has been received, it proceeds to the process of step ST22.
- step ST22 the control circuit 29 causes the image processing unit 23 to perform image processing such as thinning processing on the registered image AIM to obtain an output result image.
- step ST23 the control circuit 29 sets parameters. Specifically, the control circuit 29 sets the setting position (reference point) BP (X, y) as a parameter for generating the registration information RT1 (template) based on the random number generated by the random number generation unit 24, for example.
- the set
- step ST24 the control circuit 29 causes the table generating unit 25 to generate the registration information RT1 by performing generalized Hough transform on the registered image AIM based on the set parameters, as shown in FIGS. .
- the table generation unit 25 performs image patterning at the pixel position P (x, y) on the image pattern in the registered image AIM, as shown in FIG.
- the first angle information ⁇ (x, y) that indicates the angle of the straight line L2 perpendicular to the tangent line TL1 and the straight line BLX passing through the pixel position P (X, y) and parallel to the reference axis (x axis), and Pixel position P (x, y) and set position indicating the set parameter (also referred to as reference point) BP (X, y) Distance indicating distance
- step ST25 the control circuit 29 stores (stores) the registration information RT1 in the database 22 in association with the user information.
- step ST26 the control circuit 29 generates the generated registration information (template information) R
- T1 is transmitted to the terminal device 1 via the communication IZF21 and stored in the storage unit 14 of the terminal device 1.
- step ST27 the control circuit 29 also detects, for example, an input force not shown in the registration information R It is determined whether or not the Tl change instruction has been input. If the change instruction is input, the above parameters are changed and changed by performing the process from step ST23 to ST26 again.
- the registration image AIM is subjected to the generation processing shown in step ST24 based on the parameters to generate new registration information Rtl and store it in the database 22.
- the registration information RT1 may be changed for each verification, or may be performed at a preset timing.
- the registration information RT1 change instruction may be input for each verification, or may be input at a preset timing.
- step ST27 if it is determined in step ST27 that an instruction to change registration information RT1 has not been input, it is stored in the input collation image RIM and database 22 as will be described later. The verification process is performed based on the registered information RT1.
- FIG. 7A to FIG. 7C are diagrams for explaining the operation at the time of collation of the terminal device 1 shown in FIG.
- FIG. 7A is a diagram showing an R-table as registration information.
- FIG. 7B is a diagram for explaining processing for determining a pixel position for collation determination.
- FIG. 7C is a diagram for explaining processing for determining a pixel position for collation determination using the R-table and the collation image shown in FIG. 7A.
- the collation calculation processing unit 27 performs collation processing using the generalized Hough transform based on the input collation image and the registration information RT1 stored in the database 22 at the time of collation.
- the matching calculation processing unit 27 at the pixel position Pl (x, y) on the image pattern IP in the matching image RIM, the straight line L2 perpendicular to the tangent TL1 of the image pattern IP and the pixel position PI (X, y ) To generate the third angle information ⁇ (x, y) indicating the angle with the straight line BLX parallel to the reference axis (X axis), and the third angle ⁇ ( Based on the distance information r (x, y) associated with the first angle information ⁇ (X, y) corresponding to X, y) and the second angle information ⁇ (X, y), FIG.
- pixel position RP (xc, yc) for collation judgment is determined, and the same calculation is performed on pixel positions P2, P3, ... on the image pattern in collation image RIM.
- the matching process is performed based on the result of comparison between the degree of overlap of the pixel position RP (xc, yc) for matching and the set value.
- the matching calculation processing unit 27 when the degree of overlap of the pixel position RP (xc, yc) for matching determination is larger than the set value, the registered image AIM and the matching image RIM Judge that it is correct.
- the degree of overlap is the largest at RP (xc, yc). If the degree of overlap is greater than the set threshold, it is determined that the two match.
- FIG. 8 is a flowchart for explaining the operation at the time of collation of terminal device 1 of collation system 10 shown in FIG.
- FIG. 9 is a flowchart for explaining the operation at the time of collation of collation device 2 of collation system 10 shown in FIG.
- step ST 31 in terminal apparatus 1, user information is input to control circuit 16 through input unit 12.
- step ST 32 based on the result of imaging the subject from the biometric feature input unit 13, a matching image RIM indicating a user-specific biometric feature is input to the control circuit 16.
- step ST33 the control circuit 16 registers the registration information R stored in the storage unit 14.
- step ST34 the control circuit 16 transmits user information and registration information RT1 to the verification device 2 via the communication IZF11.
- step ST35 the control circuit 16 generates a signal indicating a verification result corresponding to the previously transmitted user information and registration information RT1 (collectively referred to as authentication information).
- authentication information a verification result corresponding to the previously transmitted user information and registration information RT1 (collectively referred to as authentication information).
- the process waits until the power is also received, and if it is received, the process proceeds to step ST36.
- step ST36 the control circuit 16 determines whether or not the collation result indicated by the received signal is authentication OK or not, and if the authentication is OK, permits the user to log in (ST37). Specifically, the control circuit 16 notifies the user that the authentication is OK through a screen display or the like, and performs login processing.
- control circuit 16 does not permit the user to log in (ST38).
- control circuit 16 notifies the user that the authentication is NG through a screen display or the like, and suppresses the login process.
- control circuit 29 of verification device 2 determines whether or not authentication information (user information, verification image RIM, registration information RT1) has been received from terminal device 1 via communication IZF21, and waits until it is received. . If the control circuit 29 determines that it has been received as a result of the determination, it proceeds to the processing of step ST42.
- step ST42 the control circuit 29 reads registration information RT1 associated with the received user information from the database 22.
- step ST43 the control circuit 29 compares the read registration information RT1 with the registration information RT1 received from the terminal device 1 through the communication IZF21 1 by using the table comparison unit 26, and determines whether or not they match. .
- control circuit 29 determines that they match, the control circuit 29 proceeds to the process of step ST44, and if it determines that they match, it proceeds to the process of step ST48. Since this comparison process compares the tables, it can be performed in a shorter time than the comparison process by the image processing described below.
- step ST44 for example, the control circuit 29 causes the image processing unit 23 to perform image processing such as thinning processing on the collation image RIM as necessary at the time of registration.
- step ST45 the control circuit 29 causes the verification calculation processing unit 27 to perform the above-described verification processing.
- the collation calculation processing unit 27 calculates the pixels on the image pattern IP in the collation image RIM.
- a third line indicating the angle between straight line L2 perpendicular to tangent TL1 of image pattern IP and straight line BLX passing through pixel position P 1 (X, y) and parallel to the reference axis (X axis). Is generated, and the distance information associated with the first angle information ⁇ corresponding to the third angle ⁇ included in the registration information RT1 shown in Fig. 7 !!: and the second angle information oc Then, as shown in Fig.
- the pixel position RP (xc, yc) for collation judgment is determined, and the pixel positions P2, P3, ... on the image pattern in the collation image RIM are determined.
- the same calculation is performed to generate an image pattern that indicates the degree of overlap of the pixel position RP (xc, yc) for verification judgment.
- step ST46 the control circuit 29 determines whether or not the degree of overlap is larger than a set value (threshold value), for example, for the pixel position where the degree of overlap is the maximum as a result of the calculation in step ST45. to decide. If the comparison result shows that the comparison result is greater than the threshold value, the control circuit 29 proceeds to the processing of step ST47, and if it is equal to or less than the threshold value, the input collation image RIM force The registered image corresponding to the registered registration information RT1. It is determined that it does not match AIM, and the process proceeds to step ST49.
- a set value for example, for the pixel position where the degree of overlap is the maximum as a result of the calculation in step ST45.
- step ST47 when it is determined that the control circuit 29 is greater than the threshold value, the control circuit 29 determines that the input verification image RIM matches the registration image AIM corresponding to the registration information RT1 registered. Then, a signal indicating that the authentication is OK is transmitted to the terminal device 1 via the communication IZF21. When the terminal device 1 receives the signal via the communication IZF 11, the terminal device 1 performs the login process as described above.
- step ST43 when the control circuit 29 determines that the read registration information RT1 and the registration information RT1 received from the terminal device 1 match, for example, steps ST44 to ST47.
- the collation processing is suppressed (ST48), and the process proceeds to step ST49.
- step ST49 the control circuit 29 transmits a signal indicating authentication NG to the terminal device 1 via the communication IZF21.
- the terminal device 1 receives the signal via the communication IZF11, the terminal device 1 notifies the fact by a screen display or the like.
- the collation apparatus 2 performs the first parameter specific to the first parameter obtained by applying the generalized Hough transform process to the registered image AIM based on the set first parameter. Designate registration information RT1 as registration information RT1 to be used for verification.
- the second registration information RT1 obtained by applying the generalized Hough transform processing to the registered image AIM based on the second parameter different from the first parameter is used for verification. Since it is specified as registration information RT1, security can be improved.
- the verification device 2 performs processing for generating different registration information (R-table) RT1 in the registration image AIM according to the set parameters, in detail, general-Hough conversion processing.
- the registration information RT1 generated by this process is stored in the database 22, and when an instruction to change the registration information RT1 is input, the meter is changed, and the registration image AIM is changed based on the changed parameters.
- the generalized Hough transform process is performed again to generate new registration information RT1 and store it in the database 22.
- the input verification image RIM and the registration information RT1 stored in the database 22 are stored. Since the verification process is performed based on this, security can be improved.
- the registration information RT1 is stored in the database 22 without storing the registration image AIM for collation. For example, when the registration information RT1 is leaked to a third party or stolen. In this case, even if the registration information RT1 is discarded, it is difficult to analogize the registration image AIM from the registration information RT1, so the security is high.
- the same registration information RT1 is stored in the database 22 of the verification device 2 and the storage unit 14 of the terminal device 1, and the registration information RT1 stored in the database 22 of the verification device 2 at the time of verification, the terminal It is determined whether or not the registration information RT1 stored in the storage unit 14 of the device 1 matches, and the matching process is performed on the condition that it is determined to match, so that the matching probability is further increased. Can do. Also, if the registration information RT1 is not correct, the verification process is suppressed and the processing time is reduced.
- the degree of overlap is determined by the above-described process and collation processing is performed, so that collation with high accuracy can be performed.
- the registration information RT1 can be generated at high speed.
- registration information RT1 and verification image R can be used even if there is no information about parameters.
- verification processing can be performed by simple processing as described above, so that verification processing can be performed at high speed.
- the processing according to the present invention is performed by the terminal device 1 and the verification device 2, but the present invention is not limited to this mode.
- the terminal device 1 and the verification device 2 may be realized by the same computer.
- the registration information RT1 is generated by setting a parameter using a random number during the registration process. However, each time the authentication process is successful, the parameter is changed and a new registration is performed. Information RT1 may be generated, or when a change instruction is input, new registration information RT1 may be generated, or new registration information RT1 may be generated at an arbitrary timing. In this way, for example, it is possible to further increase the safety against leakage of the registration information RT1.
- the functions according to the present invention may be realized only by the control circuit, or may be realized by providing a dedicated circuit for each component. Further, the functions according to the present invention may be realized by executing a program, or may be realized by hard wired.
- the apparatus and operation according to the present invention have been described with respect to ecological information, but the present invention is not limited to this form.
- the present invention can be applied to an apparatus that performs image collation using an arbitrary image.
- the present invention can be applied to a collation system that collates images.
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Abstract
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602005017070T DE602005017070D1 (de) | 2004-11-18 | 2005-11-17 | Vergleichsverfahren, -system, -computer und -programm |
CN2005800460979A CN101099173B (zh) | 2004-11-18 | 2005-11-17 | 核对方法和核对系统 |
EP05806603A EP1821172B1 (en) | 2004-11-18 | 2005-11-17 | Collation method, collation system, computer, and program |
US11/719,233 US8260060B2 (en) | 2004-11-18 | 2005-11-17 | Comparison method, comparison system, computer, and program |
KR1020077011248A KR101169491B1 (ko) | 2004-11-18 | 2005-11-17 | 대조 장치, 대조 방법, 대조 시스템, 컴퓨터, 및 기록 매체 |
HK08101601.1A HK1107863A1 (en) | 2004-11-18 | 2008-02-14 | Collation method and collation system |
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JP2004334266A JP4375212B2 (ja) | 2004-11-18 | 2004-11-18 | 照合装置、照合方法、照合システム、およびプログラム |
JP2004-334266 | 2007-05-11 |
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WO2006054645A1 true WO2006054645A1 (ja) | 2006-05-26 |
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PCT/JP2005/021126 WO2006054645A1 (ja) | 2004-11-18 | 2005-11-17 | 照合方法、照合システム、コンピュータ、およびプログラム |
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US (1) | US8260060B2 (ja) |
EP (1) | EP1821172B1 (ja) |
JP (1) | JP4375212B2 (ja) |
KR (1) | KR101169491B1 (ja) |
CN (1) | CN101099173B (ja) |
DE (1) | DE602005017070D1 (ja) |
HK (1) | HK1107863A1 (ja) |
WO (1) | WO2006054645A1 (ja) |
Cited By (2)
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JP2008177654A (ja) * | 2007-01-16 | 2008-07-31 | Sony Corp | データ処理装置、およびデータ処理方法、並びにコンピュータ・プログラム |
EP2075759A1 (en) * | 2006-10-17 | 2009-07-01 | Sony Corporation | Registration device, collating device, authenticating method and authenticating program |
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US9141863B2 (en) * | 2008-07-21 | 2015-09-22 | Facefirst, Llc | Managed biometric-based notification system and method |
US10909400B2 (en) | 2008-07-21 | 2021-02-02 | Facefirst, Inc. | Managed notification system |
US9721167B2 (en) | 2008-07-21 | 2017-08-01 | Facefirst, Inc. | Biometric notification system |
US10929651B2 (en) | 2008-07-21 | 2021-02-23 | Facefirst, Inc. | Biometric notification system |
US10043060B2 (en) | 2008-07-21 | 2018-08-07 | Facefirst, Inc. | Biometric notification system |
US9405968B2 (en) | 2008-07-21 | 2016-08-02 | Facefirst, Inc | Managed notification system |
JP5147673B2 (ja) * | 2008-12-18 | 2013-02-20 | 株式会社日立製作所 | 生体認証システムおよびその方法 |
CN104123711B (zh) * | 2013-04-24 | 2016-03-30 | 上海联影医疗科技有限公司 | 一种三维图像中多器官的定位方法 |
DE102018211381B4 (de) * | 2018-07-10 | 2021-01-28 | Siemens Healthcare Gmbh | Gültigkeit eines Bezugssystems |
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KR20030071270A (ko) * | 2002-02-28 | 2003-09-03 | 학교법인 한양학원 | 홍채 특징점을 이용한 홍채 인식 방법 및 장치 |
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- 2004-11-18 JP JP2004334266A patent/JP4375212B2/ja not_active Expired - Fee Related
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2005
- 2005-11-17 DE DE602005017070T patent/DE602005017070D1/de active Active
- 2005-11-17 KR KR1020077011248A patent/KR101169491B1/ko not_active IP Right Cessation
- 2005-11-17 EP EP05806603A patent/EP1821172B1/en not_active Not-in-force
- 2005-11-17 WO PCT/JP2005/021126 patent/WO2006054645A1/ja active Application Filing
- 2005-11-17 US US11/719,233 patent/US8260060B2/en not_active Expired - Fee Related
- 2005-11-17 CN CN2005800460979A patent/CN101099173B/zh not_active Expired - Fee Related
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EP2075759A1 (en) * | 2006-10-17 | 2009-07-01 | Sony Corporation | Registration device, collating device, authenticating method and authenticating program |
EP2075759A4 (en) * | 2006-10-17 | 2013-03-06 | Sony Corp | RECORDING DEVICE, COLLATION DEVICE, AUTHENTICATION METHOD, AND AUTHENTICATION PROGRAM |
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Also Published As
Publication number | Publication date |
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KR101169491B1 (ko) | 2012-07-27 |
KR20070084327A (ko) | 2007-08-24 |
US8260060B2 (en) | 2012-09-04 |
EP1821172A4 (en) | 2008-03-12 |
CN101099173A (zh) | 2008-01-02 |
JP2006146477A (ja) | 2006-06-08 |
JP4375212B2 (ja) | 2009-12-02 |
US20090169116A1 (en) | 2009-07-02 |
CN101099173B (zh) | 2010-05-26 |
HK1107863A1 (en) | 2008-04-18 |
EP1821172A1 (en) | 2007-08-22 |
EP1821172B1 (en) | 2009-10-07 |
DE602005017070D1 (de) | 2009-11-19 |
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