# US 12,223,023 B2 · Authentication system, authentication apparatus, authentication method and computer program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,223,023 B2 - Document ID: US12223023B2 - Status: Granted - Kind: B2 - Application number: 17/637,185 - Filed: 2020-07-30 - Published: 2022-10-13 - Granted: 2025-02-11 - Earliest claimed: 2020-07-30 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Junichi Inoue - Web page: https://patentgrep.com/patent/US12223023B2 ## CPC - G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints - G06F 21/31: User authentication - G07C 9/37: using biometric data, e.g. fingerprints, iris scans or voice recognition - H04L 63/0861: {using biometrical features, e.g. fingerprint, retina-scan (cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231)} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract An authentication system (10) is provided with: an acquiring means (110) for acquiring a face image of a target (500) passing a gate (200); a face authentication means (120) for performing a face authentication, in which it is determined that whether or not the target is a registered target, by collating information obtained from the face image of the target with information about faces of a plurality of registered targets; and a determining means (130) for determining whether or not the target can pass through the gate on the basis of a number of times of successful authentication when the face authentication is performed a plurality of times. According to such the authentication system, it is possible to properly determine that whether or not a target can pass a gate. ## Claims ### Claim 1 An authentication system comprising: at least one memory storing instructions; and at least one processor configured to execute the instructions to: acquire a face image of a target passing a gate; acquire attribute information including at least one of personal information belonging to the target and information related to boarding; perform a face authentication, in which whether or not the target is a registered target is determined, by collating information obtained from the face image of the target with information about a plurality of faces of a respective plurality of registered targets; and determine whether or not the target is permitted to pass through the gate based on whether or not a number of times of that the face authentication was successful, when the face authentication has been performed a plurality of times, is equal to or greater than a threshold value that is set based on the attribute information of the target. ### Claim 2 (depends on 1) The authentication system according to claim 1, wherein the at least one processor is configured to execute the instructions to determine that the target is permitted to pass through the gate in at least one of a case in which the number of times of that the face authentication was successful is equal to or greater than a predetermined number of times, and a case in which the face authentication has succeeded continuously for the predetermined number of times or more. ### Claim 3 (depends on 2) The authentication system according to claim 2, wherein the at least one processor is configured to execute the instructions to: store a plurality of face images of the target; and perform the face authentication by selecting a face image suitable for the face authentication, from the plurality of face images of the target stored. ### Claim 4 (depends on 2) The authentication system according to claim 2, wherein the at least one processor is configured to execute the instructions to acquire a plurality of face images that are imaged from different angles by changing at least one or more of a position, a height, and an angle of a camera for imaging a face of the target. ### Claim 5 (depends on 2) The authentication system according to claim 2, wherein the at least one processor is configured to execute the instructions to perform face authentication by using a first face image of the target imaged from a first direction, and face authentication by using a second face image of the target imaged from a second direction different from the first direction. ### Claim 6 (depends on 2) The authentication system according to claim 2, wherein the at least one processor is configured to execute the instructions to display at least one or more of information about a number of the plurality of times the face authentication has been performed, information about the number of times that the face authentication was successful, and information about whether or not the target is permitted to pass through the gate. ### Claim 7 (depends on 1) The authentication system according to claim 1, wherein the at least one processor is configured to execute the instructions to: store a plurality of face images of the target; and perform the face authentication by selecting a face image suitable for the face authentication, from the plurality of face images of the target stored. ### Claim 8 (depends on 7) The authentication system according to claim 7, wherein the at least one processor is configured to execute the instructions to acquire a plurality of face images that are imaged from different angles by changing at least one or more of a position, a height, and an angle of a camera for imaging a face of the target. ### Claim 9 (depends on 7) The authentication system according to claim 7, wherein the at least one processor is configured to execute the instructions to perform face authentication by using a first face image of the target imaged from a first direction, and face authentication by using a second face image of the target imaged from a second direction different from the first direction. ### Claim 10 (depends on 7) The authentication system according to claim 7, wherein the at least one processor is configured to execute the instructions to display at least one or more of information about a number of the plurality of times the face authentication has been performed, information about the number of times that the face authentication was successful, and information about whether or not the target is permitted to pass through the gate. ### Claim 11 (depends on 1) The authentication system according to claim 1, wherein the at least one processor is configured to execute the instructions to acquire a plurality of face images that are imaged from different angles by changing at least one or more of a position, a height, and an angle of a camera for imaging a face of the target. ### Claim 12 (depends on 11) The authentication system according to claim 11, wherein the at least one processor is configured to execute the instructions to perform face authentication by using a first face image of the target imaged from a first direction, and face authentication by using a second face image of the target imaged from a second direction different from the first direction. ### Claim 13 (depends on 11) The authentication system according to claim 11, wherein the at least one processor is configured to execute the instructions to display at least one or more of information about a number of the plurality of times the face authentication has been performed, information about the number of times that the face authentication was successful, and information about whether or not the target is permitted to pass through the gate. ### Claim 14 (depends on 1) The authentication system according to claim 1, wherein the at least one processor is configured to execute the instructions to perform face authentication by using a first face image of the target imaged from a first direction, and face authentication by using a second face image of the target imaged from a second direction different from the first direction. ### Claim 15 (depends on 14) The authentication system according to claim 14, wherein the at least one processor is configured to execute the instructions to display at least one or more of information about a number of the plurality of times the face authentication has been performed, information about the number of times that the face authentication was successful, and information about whether or not the target is permitted to pass through the gate. ### Claim 16 (depends on 1) The authentication system according to claim 1, wherein the at least one processor is configured to execute the instructions to display at least one or more of information about a number of the plurality of times the face authentication has been performed, information about the number of times that the face authentication was successful, and information about whether or not the target is permitted to pass through the gate. ### Claim 17 (depends on 1) The authentication system according to claim 1, wherein the at least one processor is configured to execute the instructions to: acquire information about body temperature of the target, and determine whether or not the target is permitted to pass through the gate based on the number of times that the face authentication was successful authentication, when the face authentication has been performed the plurality of times, and the information about the body temperature. ### Claim 18 An authentication method performed by a computer and comprising: acquiring a face image of a target passing a gate; acquiring attribute information including at least one of personal information belonging to the target and information related to boarding; performing a face authentication, in which whether or not the target is a registered target is determined, by collating information obtained from the face image of the target with information about a plurality of faces of a respective plurality of registered targets; and determining whether or not the target is permitted to pass through the gate based on whether or not a number of times of that the face authentication was successful, when the face authentication has been performed a plurality of times, is equal to or greater than a threshold value that is set based on the attribute information of the target. ### Claim 19 A non-transitory recording medium storing a computer program executable by a computer to perform processing comprising: acquiring a face image of a target passing a gate; acquiring attribute information including at least one of personal information belonging to the target and information related to boarding; performing a face authentication, in which whether or not the target is a registered target is determined, by collating information obtained from the face image of the target with information about a plurality of faces of a respective plurality of registered targets; and determining whether or not the target is permitted to pass through the gate based on whether or not a number of times of that the face authentication was successful, when the face authentication has been performed a plurality of times, is equal to or greater than a threshold value that is set based on the attribute information of the target.