WO2024166381A1 - Dispositif de traitement d'informations, procédé de traitement d'informations et support d'enregistrement - Google Patents

Dispositif de traitement d'informations, procédé de traitement d'informations et support d'enregistrement Download PDF

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Publication number
WO2024166381A1
WO2024166381A1 PCT/JP2023/004610 JP2023004610W WO2024166381A1 WO 2024166381 A1 WO2024166381 A1 WO 2024166381A1 JP 2023004610 W JP2023004610 W JP 2023004610W WO 2024166381 A1 WO2024166381 A1 WO 2024166381A1
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WIPO (PCT)
Prior art keywords
authentication
information
biometric information
information processing
registration
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PCT/JP2023/004610
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English (en)
Japanese (ja)
Inventor
亮磨 大網
貴裕 戸泉
航介 吉見
恵 橋本
宏和 秋葉
渉 藤井
真二 大湊
大樹 高橋
一峰 周
善裕 梶木
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日本電気株式会社
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Priority to PCT/JP2023/004610 priority Critical patent/WO2024166381A1/fr
Publication of WO2024166381A1 publication Critical patent/WO2024166381A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/45—Structures or tools for the administration of authentication

Definitions

  • This disclosure relates to the technical fields of information processing devices, information processing methods, and recording media.
  • Patent Document 1 Another prior art document related to this disclosure is Patent Document 2.
  • the objective of this disclosure is to provide an information processing device, an information processing method, and a recording medium that aim to improve upon the technology described in prior art documents.
  • One aspect of the information processing device includes an authentication means for authenticating a target using first biometric information in a first modal acquired from the target and second biometric information in a second modal acquired from the target, and an output means for outputting information for prompting a change of registration information for at least one of the first biometric information and the second biometric information based on a past authentication result.
  • One aspect of the information processing method is to authenticate a target using first biometric information in a first modal acquired from the target and second biometric information in a second modal acquired from the target, and output information prompting the target to change registration information for at least one of the first biometric information and the second biometric information based on past authentication results.
  • a computer program is recorded to cause a computer to execute an information processing method that authenticates a target using first biometric information in a first modality acquired from the target and second biometric information in a second modality acquired from the target, and outputs information prompting a change of registration information for at least one of the first biometric information and the second biometric information based on past authentication results.
  • FIG. 1 is a block diagram showing an example of a configuration of an information processing device.
  • FIG. 13 is a block diagram showing another example of the configuration of the information processing device.
  • 2 is a block diagram showing a configuration of a multimodal authentication unit.
  • FIG. 10 is a flowchart illustrating an example of an operation of the information processing device.
  • FIG. 13 is a block diagram showing another example of the configuration of the information processing device. 13 is a flowchart showing another example of the operation of the information processing device.
  • This section describes embodiments of an information processing device, an information processing method, and a recording medium.
  • the information processing device 1 includes an authentication unit 11 and an output unit 12.
  • the authentication unit 11 authenticates the target using first biometric information in a first modal acquired from the target and second biometric information in a second modal acquired from the target. In other words, the authentication unit 11 performs multimodal biometric authentication.
  • the authentication result of the target by the authentication unit 11 is stored in a memory or the like (not shown).
  • the output unit 12 outputs information that prompts the user to change the registered information for at least one of the first biometric information and the second biometric information based on past authentication results (i.e., authentication results of authentication performed on the target prior to the current authentication by the authentication unit 11).
  • an information processing method is performed in which the first biometric information in a first modal acquired from the target and the second biometric information in a second modal acquired from the target are used to authenticate the target, and information prompting a change of registration information for at least one of the first biometric information and the second biometric information is output based on past authentication results.
  • the information processing device 1 may be realized by a computer reading a computer program recorded on a recording medium.
  • the recording medium can be said to have recorded thereon a computer program for causing a computer to execute an information processing method that authenticates a target using first biometric information in a first modal acquired from the target and second biometric information in a second modal acquired from the target, and outputs information for at least one of the first biometric information and the second biometric information, encouraging a change of registered information, based on past authentication results.
  • biometric authentication which is authentication using biometric information
  • the authentication accuracy may decrease due to at least one of aging, the image quality of the registered image, and the matching conditions.
  • a technology has been proposed that prompts a user to change the registered information based on the authentication result of a single biometric authentication method (i.e., single-modal biometric authentication).
  • this technology is based only on the authentication result of a single biometric authentication method, there is a possibility that the user will be prompted to change the registered information based on the result of erroneous authentication.
  • the authentication unit 11 of the information processing device 1 performs multimodal biometric authentication. For this reason, the possibility that the authentication unit 11 will erroneously recognize a person who is not a registered user as a registered user is lower than in single-modal biometric authentication. Therefore, in the information processing device 1, the possibility that a user will be prompted to change the registered information based on the result of an erroneous authentication is lower than in single-modal biometric authentication. If the registered information is changed in accordance with the information urging the user to change the registered information output by the output unit 12 of the information processing device 1, a decrease in authentication accuracy can be suppressed. As a result, the information processing device 1 can maintain a high level of authentication accuracy.
  • Second Embodiment The second embodiment of the information processing device, the information processing method, and the recording medium will be described with reference to Fig. 2 to Fig. 4. In the following, the second embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing device 2.
  • the information processing device 2 includes a calculation device 21, a storage device 22, a communication device 23, and an image acquisition unit 26.
  • the information processing device 2 may include an input device 24 and an output device 25.
  • the information processing device 2 does not have to include at least one of the input device 24 and the output device 25.
  • the calculation device 21, the storage device 22, the communication device 23, the input device 24, the output device 25, and the image acquisition unit 26 may be connected via a data bus 27.
  • the computing device 21 may include, for example, at least one of a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an FPGA (Field Programmable Gate Array), a TPU (Tensor Processing Unit), and a quantum processor.
  • a CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • FPGA Field Programmable Gate Array
  • TPU Torsor Processing Unit
  • quantum processor a quantum processor
  • the storage device 22 may include, for example, at least one of a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk device, an optical magnetic disk device, an SSD (Solid State Drive), and an optical disk array.
  • the storage device 22 may include a non-transient recording medium.
  • the storage device 22 is capable of storing desired data.
  • the storage device 22 may temporarily store a computer program executed by the arithmetic device 21.
  • the storage device 22 may temporarily store data that is temporarily used by the arithmetic device 21 when the arithmetic device 21 is executing a computer program.
  • the communication device 23 may be capable of communicating with devices external to the information processing device 2.
  • the communication device 23 may perform wired communication or wireless communication.
  • Wired communication is not limited to communication via a network, but also includes communication via a cable such as a USB (Universal Serial Bus) cable.
  • Wireless communication is not limited to communication via a network, but also includes short-range wireless communication such as Bluetooth (registered trademark).
  • the input device 24 is a device capable of accepting information input to the information processing device 2 from the outside.
  • the input device 24 may include an operating device (e.g., a keyboard, a mouse, a touch panel, etc.) that can be operated by an operator of the information processing device 2.
  • the input device 24 may include a recording medium reading device that can read information recorded on a recording medium that is detachable from the information processing device 2, such as a USB memory. Note that when information is input to the information processing device 2 via the communication device 23 (in other words, when the information processing device 2 obtains information via the communication device 23), the communication device 23 may function as an input device.
  • the output device 25 is a device capable of outputting information to the outside of the information processing device 2.
  • the output device 25 may output visual information such as characters and images, auditory information such as sound, or tactile information such as vibration, as the above information.
  • the output device 25 may include at least one of a display, a speaker, a printer, and a vibration motor, for example.
  • the output device 25 may be capable of outputting information to a recording medium that is detachable from the information processing device 2, such as a USB memory. Note that when the information processing device 2 outputs information via the communication device 23, the communication device 23 may function as an output device.
  • the image acquisition unit 26 has one or more cameras. The cameras are arranged in positions where they can capture an image of the subject of multimodal biometric authentication.
  • the image acquisition unit 26 acquires a face image generated by the camera capturing an image of the subject's face.
  • the image acquisition unit 26 acquires an eye image generated by the camera capturing an image of the subject's eyes.
  • the image acquisition unit 26 may acquire a right eye image including the subject's right eye and a left eye image including the subject's left eye.
  • the image acquisition unit 26 may have a visible light camera for capturing an image of the subject's face and a near-infrared camera for capturing an image of the subject's eyes (particularly, the iris).
  • the computing device 21 may have the multimodal authentication unit 211, the re-registration determination unit 212, and the re-registration unit 213 as logically realized functional blocks or as physically realized processing circuits. At least one of the multimodal authentication unit 211, the re-registration determination unit 212, and the re-registration unit 213 may be realized in a format in which a logical functional block and a physical processing circuit (i.e., hardware) are mixed.
  • the re-registration determination unit 212 When at least a part of the multimodal authentication unit 211, the re-registration determination unit 212, and the re-registration unit 213 are functional blocks, at least a part of the multimodal authentication unit 211, the re-registration determination unit 212, and the re-registration unit 213 may be realized by the computing device 21 executing a predetermined computer program.
  • the arithmetic device 21 may obtain (in other words, read) the above-mentioned specific computer program from the storage device 22.
  • the arithmetic device 21 may read the above-mentioned specific computer program stored in a computer-readable and non-transient recording medium using a recording medium reading device (not shown) provided in the information processing device 2.
  • the arithmetic device 21 may obtain (in other words, download or read) the above-mentioned specific computer program from a device (not shown) external to the information processing device 2 via the communication device 23.
  • the recording medium for recording the above-mentioned specific computer program executed by the arithmetic device 21 may be at least one of an optical disk, a magnetic medium, a magneto-optical disk, a semiconductor memory, and any other medium capable of storing a program.
  • the multimodal authentication unit 211 has a face authentication unit 2111, an iris authentication unit 2112, and an integrated authentication unit 2113. In other words, the multimodal authentication unit 211 performs face authentication as a first modal and iris authentication as a second modal.
  • the face authentication unit 2111 performs face authentication using the face image of the subject acquired by the image acquisition unit 26.
  • the face authentication unit 2111 extracts face-related features from the face image.
  • the face authentication unit 2111 calculates a face matching score by matching the extracted features with face-related features registered in the registration data 221. Note that various existing aspects can be applied to face authentication, so detailed explanations are omitted.
  • the iris authentication unit 2112 performs iris authentication using the eye image of the subject acquired by the image acquisition unit 26.
  • the iris authentication unit 2112 extracts features related to the iris from the eye image.
  • the iris authentication unit 2112 calculates an iris matching score by matching the extracted features with the features related to the iris registered in the registration data 221.
  • the iris authentication unit 2112 may calculate a right iris matching score related to the iris of the right eye and a left iris matching score related to the iris of the left eye. Note that various existing aspects can be applied to iris authentication, so detailed explanations thereof will be omitted.
  • the integrated authentication unit 2113 calculates an integrated score based on the face matching score calculated by the face authentication unit 2111 and the iris matching score (specifically, at least one of the right iris matching score and the left iris matching score) calculated by the iris authentication unit 2112. For example, the integrated authentication unit 2113 may calculate the average value of the face matching score and the iris matching score as the integrated score. The integrated authentication unit 2113 may calculate the integrated score using a learning model that outputs an integrated score when the face matching score and the iris matching score are input.
  • the multimodal authentication unit 211 determines that the authentication is successful if the combined score is equal to or greater than the threshold. On the other hand, the multimodal authentication unit 211 determines that the authentication is unsuccessful if the combined score is less than the threshold.
  • the multimodal authentication unit 211 may control the output device 25 so that the result of the authentication (specifically, either the authentication success or the authentication failure) is presented to the subject.
  • the multimodal authentication unit 211 associates the matching ID (i.e., information equivalent to identification information indicating the person specified by authentication) with the current authentication result (i.e., face matching score, iris authentication score, and integrated score) and registers them in the matching history data 222.
  • the multimodal authentication unit 211 associates the matching ID with the current authentication result and outputs them to the re-registration determination unit 212.
  • the re-registration determination unit 212 obtains the past matching results (i.e., face matching score, iris matching score, and integrated score) associated with the matching ID from the matching history data 222 based on the matching ID output from the multimodal authentication unit 211.
  • the re-registration determination unit 212 compares the current matching result with the past matching results. For example, the re-registration determination unit 212 determines whether one of the face matching score, right iris matching score, and left iris matching score is lower than the remaining matching scores of the face matching score, right iris matching score, and left iris matching score.
  • the re-registration determination unit 212 If it is determined that the one matching score is lower than the remaining matching scores, the re-registration determination unit 212 outputs re-registration information to the re-registration unit 213, the re-registration information including information indicating the physical feature related to the one matching score (e.g., one of the face, right iris, and left iris) and information indicating that re-registration is necessary. If it is determined that the one matching score is not lower than the remaining matching scores, the re-registration determination unit 212 does not need to perform further processing.
  • the re-registration determination unit 212 does not need to perform further processing.
  • the re-registration determination unit 212 may determine whether the quality of the image (i.e., the face image and eye image) used in the current authentication satisfies a predetermined quality.
  • the image quality may include at least one of the degree of blur, the degree of shaking, contrast, brightness, and resolution.
  • the re-registration unit 213 controls the output device 25 so that information encouraging the subject to re-registration is presented based on the re-registration information output from the re-registration determination unit 212. If the subject agrees to re-registration (for example, if the subject indicates his/her intention to agree to re-registration via the input device 24), the re-registration unit 213 re-registers the feature amount corresponding to the physical feature related to the one matching score included in the re-registration information in the registration data. Note that re-registration is a concept that includes both replacing a feature amount already registered in the registration data 221 and adding a feature amount to the registration data 221.
  • the re-registration unit 213 may extract features to be re-registered in the registration data 221 based on the image (i.e., at least one of a face image and an eye image) used in the current authentication by the multimodal authentication unit 211.
  • the image acquisition unit 26 may acquire a new image (i.e., at least one of a face image and an eye image) of the subject.
  • the re-registration unit 213 may extract features to be re-registered in the registration data 221 based on the new image.
  • the face authentication unit 2111 of the multimodal authentication unit 211 calculates a face matching score (step S101).
  • the iris authentication unit 2112 of the multimodal authentication unit 211 calculates an iris matching score (step S102).
  • the integrated authentication unit 2113 of the multimodal authentication unit 211 calculates an integrated score based on the face matching score and the iris matching score (step S103).
  • the multimodal authentication unit 211 determines whether the combined score is equal to or greater than the threshold (step S104). If it is determined in the process of step S104 that the combined score is less than the threshold (step S104: No), the operation shown in FIG. 4 is terminated. If it is determined in the process of step S104 that the combined score is equal to or greater than the threshold (step S104: Yes), the multimodal authentication unit 211 associates the matching ID (i.e., information equivalent to identification information indicating the person identified by authentication) with the current authentication result (i.e., face matching score, iris authentication score, and combined score) and registers them in the matching history data 222 (step S105).
  • the matching ID i.e., information equivalent to identification information indicating the person identified by authentication
  • the current authentication result i.e., face matching score, iris authentication score, and combined score
  • the re-registration determination unit 212 determines whether one of the face matching score, right iris matching score, and left iris matching score is lower than the remaining face matching score, right iris matching score, and left iris matching score (step S106). If it is determined in the processing of step S106 that the one matching score is not lower than the remaining matching score (step S106: No), the operation shown in FIG. 4 is terminated.
  • step S106 determines whether the one matching score is lower than the remaining matching scores. If it is determined in the processing of step S106 that the one matching score is lower than the remaining matching scores (step S106: Yes), the re-registration unit 213 controls the output device 25 so that information prompting the subject to re-register (e.g., a prompting screen prompting the subject to re-register) is presented (step S107). The re-registration unit 213 determines whether the subject has agreed to re-registration (step S108). If it is determined in the processing of step S108 that the subject does not agree to re-registration (step S108: No), the operation shown in FIG. 4 is terminated.
  • step S108 determines whether the subject has agreed to re-registration. If it is determined in the processing of step S108 that the subject does not agree to re-registration (step S108: No), the operation shown in FIG. 4 is terminated.
  • the re-registration unit 213 acquires an image for extracting the features to be re-registered (step S109).
  • the re-registration unit 213 extracts features based on the image acquired in the process of step S109, and re-registers the extracted features in the registration data 221 (step S110).
  • the image acquired in the process of step S109 may be the image used in the current authentication by the multimodal authentication unit 211, or may be an image newly acquired by the image acquisition unit 26.
  • the feature amount related to the physical feature corresponding to a deteriorated matching score among the multiple matching scores is re-registered in the enrollment data 221, so that a high level of authentication accuracy can be maintained.
  • the enrollment data 221 and the matching history data 222 are stored in the storage device 22 of the information processing device 2. At least one of the enrollment data 221 and the matching history data 222 may be stored in a device (e.g., a cloud server) different from the information processing device 2.
  • a device e.g., a cloud server
  • the re-registration determination unit 212 may determine whether re-registration is necessary using the current authentication result and multiple past authentication results. In this case, the re-registration determination unit 212 may determine that re-registration is necessary when a matching score (e.g., at least one of the face matching score, the right iris matching score, and the left iris matching score) in a certain round is lower than the matching score in the immediately previous round for multiple consecutive times (in other words, when a downward trend in the matching score is observed). Alternatively, the re-registration determination unit 212 may determine that re-registration is necessary when a ratio of the matching score falling below the average value of the previous matching scores in the immediately previous predetermined number of matching histories exceeds a predetermined ratio.
  • a matching score e.g., at least one of the face matching score, the right iris matching score, and the left iris matching score
  • the re-registration determination unit 212 may determine that re-registration of the face image used in face authentication (i.e., the face image that failed authentication) is necessary.
  • the re-registration determination unit 212 may determine that re-registration of the iris image used in iris authentication (i.e., the iris image that failed authentication) is necessary.
  • the matching history data 222 may also register the time series change trend of each matching score (e.g., face matching score, right iris matching score, and left iris matching score) for each of a plurality of authentication IDs. For example, when the time series change trend of one of the face matching score, right iris matching score, and left iris matching score shows a downward trend regardless of the authentication ID, the re-registration determination unit 212 may issue an alert indicating that there is a problem with the camera of the image acquisition unit 26, or information encouraging maintenance of the equipment.
  • each matching score e.g., face matching score, right iris matching score, and left iris matching score
  • multimodal biometric authentication is performed using face authentication and iris authentication.
  • the multimodal authentication unit 211 may perform retina authentication, eye vein authentication, ear authentication, fingerprint authentication, and speaker authentication instead of or in addition to face authentication and iris authentication.
  • the information processing device 3 includes a calculation device 21, a storage device 22, a communication device 23, an input device 24, an output device 25, and an image acquisition unit 26.
  • the calculation device 21 may have a multimodal authentication unit 211, a re-registration determination unit 212, and a spoofing determination unit 214 as a logically realized functional block or as a physically realized processing circuit.
  • At least one of the multimodal authentication unit 211, the re-registration determination unit 212, and the spoofing determination unit 214 may be realized in a form in which a logical functional block and a physical processing circuit (i.e., hardware) are mixed.
  • the re-registration determination unit 212 When at least a part of the multimodal authentication unit 211, the re-registration determination unit 212, and the spoofing determination unit 214 are functional blocks, at least a part of the multimodal authentication unit 211, the re-registration determination unit 212, and the spoofing determination unit 214 may be realized by the calculation device 21 executing a predetermined computer program.
  • step S106 if it is determined that one of the face matching score, right iris matching score, and left iris matching score is lower than the remaining face matching score, right iris matching score, and left iris matching score (step S106: Yes), the re-registration determination unit 212 performs a quality determination of the image related to the one matching score among the images used in the current authentication by the multimodal authentication unit 211 (step S201).
  • the image quality may include at least one of the degree of blur, degree of shaking, contrast, brightness, and resolution.
  • the re-registration determination unit 212 determines whether the image quality meets a predetermined quality (step S202). If it is determined in the processing of step S202 that the image quality does not meet the predetermined quality (step S202: No), the operation shown in FIG. 6 is terminated. If it is determined in the processing of step S202 that the image quality meets the predetermined quality (step S202: Yes), the impersonation determination unit 214 performs an impersonation determination on the image whose quality was determined in the processing of step S201 (step S203). In other words, the impersonation determination unit 214 determines whether the person included in the above image is impersonating a registrant.
  • the impersonation determination unit 214 may perform an impersonation determination on both the face image and the iris image, or may perform an impersonation determination on only one of the face image and the iris image. If the iris matching score exceeds the iris matching threshold and the face matching score is below the face matching threshold by a predetermined range or more, the spoofing determination unit 214 may perform an spoofing determination. Alternatively, conversely, if the face matching score exceeds the face matching threshold and the iris matching score is below the iris matching threshold by a predetermined range or more, the spoofing determination unit 214 may perform an spoofing determination. Note that various existing aspects can be applied to the spoofing determination, so detailed explanations thereof will be omitted.
  • the spoofing determination unit 214 determines whether or not there is no spoofing based on the result of the spoofing determination in the processing of step S203 (step S204). If it is determined in the processing of step S204 that there is spoofing (step S204: No), the operation shown in FIG. 6 is terminated. If it is determined in the processing of step S204 that there is no spoofing (step S204: Yes), the feature extracted from the image (e.g., a face image) whose quality was determined in the processing of step S201 is re-registered in the registration data 221 (step S110). Note that the feature re-registered in the registration data 221 may be the feature extracted by the multimodal authentication unit 211 in the current authentication.
  • the feature re-registered in the registration data 221 may be extracted by, for example, the re-registration determination unit 212.
  • the spoofing determination unit 214 does not need to perform spoofing determination.
  • the feature amount related to the face image used for face authentication by the multimodal authentication unit 211 may be re-registered in the registration data 221.
  • the information processing device 3 differs from the information processing device 2 in the above-described second embodiment in that it does not have the re-registration unit 213. Therefore, in the information processing device 3, information prompting the subject to re-registration is not presented. As a result, in the information processing device 3, the processing time required for re-registration can be shortened compared to the information processing device 2 in the above-described second embodiment. According to the information processing device 3, similar to the information processing device 2 in the above-described second embodiment, the feature amount related to the physical feature corresponding to the deteriorated matching score among the multiple matching scores is re-registered in the registration data 221, so that the authentication accuracy can be maintained at a high level.
  • the information processing device 4 includes a calculation device 21, a storage device 22, a communication device 23, an input device 24, an output device 25, and an image acquisition unit 26.
  • the calculation device 21 may have a multimodal authentication unit 211, a re-registration determination unit 212, a re-registration unit 213, and an acquisition condition determination unit 215 as logically realized functional blocks or as physically realized processing circuits.
  • At least one of the multimodal authentication unit 211, the re-registration determination unit 212, the re-registration unit 213, and the acquisition condition determination unit 215 may be realized in a form in which logical functional blocks and physical processing circuits (i.e., hardware) are mixed.
  • the acquisition condition determination unit 215 may be realized by the calculation device 21 executing a predetermined computer program.
  • the acquisition condition determination unit 215 has an environmental condition detection unit 2151, an attachment condition detection unit 2152, a photographing subject condition detection unit 2153, and a condition difference determination unit 2154.
  • the acquisition condition determination unit 215 determines the acquisition conditions under which at least a portion of the image acquired by the image acquisition unit 26 was acquired.
  • the image acquired by the image acquisition unit 26 is input to the multimodal authentication unit 211 and also to the acquisition condition determination unit 215.
  • authentication of the subject by the multimodal authentication unit 211 and determination of the acquisition conditions by the acquisition condition determination unit 215 are performed in parallel.
  • the environmental condition detection unit 2151 detects environmental conditions such as time, brightness, weather, etc.
  • the environmental condition detection unit 2151 may detect time-related conditions, for example, based on a timestamp added to an image.
  • the environmental condition detection unit 2151 may detect brightness-related conditions, for example, based on an average brightness value of an image.
  • the environmental condition detection unit 2151 may detect weather-related conditions, for example, by acquiring weather information from a device different from the information processing device 4.
  • the accessory condition detection unit 2152 detects conditions related to the accessories of the subject included in the image. Examples of accessories include glasses, a mask, and goggles. The accessory condition detection unit 2152 may detect the accessory conditions by detecting the accessories using existing technology. If no accessories are detected, the accessory condition detection unit 2152 may output a condition indicating that no accessories are present as the accessory condition.
  • the photographing subject condition detection unit 2153 detects conditions related to the subject contained in the image. Examples of conditions related to the subject include physique (e.g., roundness of the face), the presence or absence of makeup, and posture (e.g., at least one of the face direction and the gaze direction).
  • the photographing subject condition detection unit 2153 may detect the conditions related to the subject by detecting the physique, etc. of the subject using existing technology.
  • the feature amount registered in the registration data 221 is associated with the acquisition condition when the image from which the feature amount was extracted was acquired.
  • Information indicating the acquisition condition associated with the registered feature amount is called registration condition information.
  • the condition difference determination unit 2154 determines the difference between the acquisition condition of the image input this time (i.e., the conditions detected by each of the environmental condition detection unit 2151, the attachment detection unit 2152, and the photographed subject condition detection unit 2153) and the registration condition information associated with the authentication ID of the subject included in the image input to the acquisition condition determination unit 215.
  • the condition difference determination unit 2154 If the acquisition conditions of the image input this time do not differ by a predetermined amount from the acquisition conditions indicated by the registered condition information, the condition difference determination unit 2154 outputs acquisition condition determination information indicating that the acquisition conditions are registered to the re-registration determination unit 212. If the acquisition conditions of the image input this time do differ by a predetermined amount from the acquisition conditions indicated by the registered condition information, the condition difference determination unit 2154 outputs acquisition condition determination information indicating that the acquisition conditions are unregistered to the re-registration determination unit 212.
  • the re-registration determination unit 212 may output information indicating that additional registration is required to the re-registration unit 213 as information indicating that re-registration is required.
  • the acquisition condition determination unit 215 outputs acquisition condition determination information indicating that the acquisition condition is registered
  • the re-registration determination unit 212 acquires the past matching results (i.e., face matching score, iris matching score, and integrated score) associated with the matching ID from the matching history data 222 based on the matching ID output from the multimodal authentication unit 211.
  • the re-registration determination unit 212 compares the current matching result with the past matching results. For example, the re-registration determination unit 212 determines whether one of the face matching score, right iris matching score, and left iris matching score is lower than the remaining matching scores of the face matching score, right iris matching score, and left iris matching score.
  • the re-registration determination unit 212 outputs re-registration information to the re-registration unit 213, the re-registration information including information indicating the physical feature related to the one matching score (e.g., one of the face, right iris, and left iris) and information indicating that replacement is required as information indicating that re-registration is required.
  • the feature amount registered in the registration data 221 may be registered for multiple acquisition conditions. In other words, the registration data 221 may have multiple feature amounts registered for a certain authentication ID, each corresponding to multiple acquisition conditions.
  • the re-registration determination unit 212 may output re-registration information including information indicating that replacement is required to the re-registration unit 213, so that the number of feature amounts for each of the multiple acquisition conditions (i.e., the amount of registration information) is maintained.
  • the information processing device 4 when a plurality of features corresponding to a plurality of acquisition conditions are registered for a certain authentication ID, it is possible to appropriately determine whether or not re-registration (i.e., additional registration or replacement) is necessary. According to the information processing device 4, similar to the information processing device 2 in the second embodiment described above, it is possible to maintain a high authentication accuracy.
  • An information processing device comprising:
  • (Appendix 2) The information processing device according to claim 1, further comprising: a change unit that changes the registration information based on at least one of the first biometric information and the second biometric information that have successfully authenticated the target.
  • the past authentication result includes a first authentication score related to authentication using the first biometric information and a second authentication score related to authentication using the second biometric information
  • the information processing device described in Appendix 1 or 2 wherein the output means outputs information prompting a change to the registered information for the first biometric information when a downward trend is observed in the first authentication score, and outputs information prompting a change to the registered information for the second biometric information when a downward trend is observed in the second authentication score.
  • a means for acquiring conditions related to certification is provided;
  • the condition acquired by the acquisition means is associated with an authentication result;
  • the information processing device according to any one of claims 1 to 3, wherein the output means outputs information prompting a user to change registered information for at least one of the first biometric information and the second biometric information when the conditions acquired by the acquisition means during this authentication differ by a predetermined amount or more from the conditions associated with the past authentication result.
  • the information processing device includes at least one of an environmental condition related to a light environment, an attachment condition related to an attachment of the subject, and an appearance condition related to an appearance of the subject.
  • Appendix 8 The information processing device described in any one of Appendix 1 to 7, further comprising a change means for re-registering a registered image for the first biometric information that failed to be authenticated using the first biometric information as a registered image of a target identified in authentication using the second biometric information when authentication using the first biometric information fails and authentication using the second biometric information is successful.
  • Appendix 9 The information processing device described in Appendix 8, wherein the change means registers an image for authentication using the first biometric information used in the authentication using the first biometric information when a matching score for authentication using the second biometric information exceeds a first threshold value and a matching score for authentication using the first biometric information falls below a second threshold value within a predetermined range.
  • An information processing method comprising: outputting information for prompting a user to change registered information for at least one of the first biometric information and the second biometric information based on a past authentication result.
  • Reference Signs List 1, 2, 3, 4 Information processing device 11 Authentication unit 12 Output unit 21 Arithmetic unit 211 Multimodal authentication unit 212 Re-registration determination unit 213 Re-registration unit 214 Spoofing determination unit 215 Acquisition condition determination unit

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Abstract

Ce dispositif de traitement d'informations comprend : un moyen d'authentification qui authentifie un sujet en utilisant respectivement des premières bioinformations d'un premier modal acquises à partir du sujet et des secondes bioinformations d'un second modal acquis à partir du sujet ; et un moyen de sortie qui délivre, sur la base de résultats d'authentification passés, des informations invitant un changement d'informations enregistrées pour au moins l'une des premières bioinformations et des secondes bioinformations.
PCT/JP2023/004610 2023-02-10 2023-02-10 Dispositif de traitement d'informations, procédé de traitement d'informations et support d'enregistrement WO2024166381A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014081796A (ja) * 2012-10-17 2014-05-08 Hitachi Ltd 生体認証サーバおよび生体認証の運用管理方法
JP2014146080A (ja) * 2013-01-28 2014-08-14 Hitachi Ltd 生体認証装置およびこれを用いた生体認証方法
WO2014132570A1 (fr) * 2013-02-26 2014-09-04 日本電気株式会社 Dispositif d'authentification, procédé d'authentification et support de stockage de programme
US20180004924A1 (en) * 2016-06-30 2018-01-04 Synaptics Incorporated Systems and methods for detecting biometric template aging
JP2020113155A (ja) * 2019-01-16 2020-07-27 キヤノン株式会社 画像処理装置、画像処理方法およびプログラム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014081796A (ja) * 2012-10-17 2014-05-08 Hitachi Ltd 生体認証サーバおよび生体認証の運用管理方法
JP2014146080A (ja) * 2013-01-28 2014-08-14 Hitachi Ltd 生体認証装置およびこれを用いた生体認証方法
WO2014132570A1 (fr) * 2013-02-26 2014-09-04 日本電気株式会社 Dispositif d'authentification, procédé d'authentification et support de stockage de programme
US20180004924A1 (en) * 2016-06-30 2018-01-04 Synaptics Incorporated Systems and methods for detecting biometric template aging
JP2020113155A (ja) * 2019-01-16 2020-07-27 キヤノン株式会社 画像処理装置、画像処理方法およびプログラム

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