CN111460925B - Biological feature detection device and electronic device - Google Patents

Biological feature detection device and electronic device Download PDF

Info

Publication number
CN111460925B
CN111460925B CN202010183861.3A CN202010183861A CN111460925B CN 111460925 B CN111460925 B CN 111460925B CN 202010183861 A CN202010183861 A CN 202010183861A CN 111460925 B CN111460925 B CN 111460925B
Authority
CN
China
Prior art keywords
detection
external object
biometric
signal
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010183861.3A
Other languages
Chinese (zh)
Other versions
CN111460925A (en
Inventor
区国雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Fushi Technology Co Ltd
Original Assignee
Shenzhen Fushi Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Fushi Technology Co Ltd filed Critical Shenzhen Fushi Technology Co Ltd
Priority to CN202010183861.3A priority Critical patent/CN111460925B/en
Publication of CN111460925A publication Critical patent/CN111460925A/en
Application granted granted Critical
Publication of CN111460925B publication Critical patent/CN111460925B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161—Detection; Localisation; Normalisation
    • 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
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • 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
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/168—Feature extraction; Face representation
    • 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
    • G06V40/18—Eye characteristics, e.g. of the iris
    • G06V40/193—Preprocessing; Feature extraction
    • 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
    • G06V40/70—Multimodal biometrics, e.g. combining information from different biometric modalities
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
    • 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
    • G06V40/14—Vascular patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Ophthalmology & Optometry (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)

Abstract

The application discloses a biological characteristic detection device, which comprises a first detection module, a second detection module and a third detection module, wherein the first detection module is used for acquiring a first detection image of an external object, and the first detection image can be used for confirming whether the external object has preset biological characteristics or not; the second detection module is used for acquiring a second detection image of the external object when the external object has preset biological characteristics, and the second detection image is used for detecting whether the external object is a legal user or not; and the control unit is used for detecting whether the first detection image has the first biological characteristic information. The control unit detects that the first detection image has the first biological characteristic information to indicate that the external object has the preset biological characteristic, and controls the second detection module to be started to acquire a second detection diagram of the external object. The application also discloses electronic equipment.

Description

Biological feature detection device and electronic device
Technical Field
The present application relates to the field of optoelectronics, and in particular, to a biological feature detection device and an electronic device.
Background
With technical progress and improvement of living standard of people, more and more products use biological feature detection devices as identity verification and security detection. For example, intelligent door locks using fingerprint or face recognition are appeared on the market, and identity verification is completed by detecting the fingerprint or face features of a user and then performing recognition and comparison. The intelligent door lock is a biological characteristic detection device. Compared with the traditional mechanical door lock, the intelligent door lock with the biological feature detection function has better safety and user experience. Typically, biometric detection devices, including smart door locks, typically turn on biometric detection when an external object is detected in proximity. However, sometimes the external object in proximity merely passes near the biometric detection device, rather than being authenticated, which results in wasted power consumption.
Disclosure of Invention
In view of this, the present application provides a biometric detection device and an electronic apparatus capable of saving power consumption.
The present application provides a biometric detection device capable of performing biometric detection of an external object located within a preset detection range, the biometric detection device storing biometric data in advance, comprising:
the first detection module is used for acquiring a first detection image of an external object;
the second detection module is used for acquiring a second detection image of the external object when the external object has preset biological characteristics;
a control unit for detecting whether the first detection image has first biometric information to confirm whether an external object has a preset biometric;
the control unit detects that the first detection image has first biological characteristic information and indicates that an external object has preset biological characteristics, controls the second detection module to be started to acquire a second detection image of the external object, can acquire second biological characteristic information from the second detection image, and matches the second biological characteristic information or combination of the second biological characteristic information and the first biological characteristic information with biological characteristic data stored in advance to execute biological characteristic detection; when the control unit detects that the first detection image does not have the first biological characteristic information, the external object does not have the preset biological characteristic, and the control unit does not control the second detection module to be started.
In some embodiments, the power consumption of the first detection module is less than the power consumption of the second detection module.
In some embodiments, the biometric detection device further includes a proximity sensing unit capable of generating a proximity sensing signal indicating whether the external object is located in the detection range, and a control unit for controlling whether the first detection module is operated according to the proximity sensing signal, and controlling the first detection module to be turned on when the proximity sensing signal indicates that the external object is located in the detection range; when the proximity sensing signal indicates that an external object is located outside the detection range or when the proximity sensing unit does not generate the proximity sensing signal, the control unit does not control the first detection module to be turned on.
In some embodiments, the proximity sensing unit is a capacitive proximity sensing sensor or an inductive proximity sensing sensor or a passive infrared detector, and the proximity sensing unit generates a proximity sensing signal when detecting the proximity of an external object; or the receiving induction unit comprises a transmitter and a receiver, wherein the transmitter transmits a proximity detection signal, and the receiver generates a proximity induction signal according to the proximity detection signal returned by an external object.
In some embodiments, the first biometric information is 2D face information and the second biometric information is 2D face information and/or 3D face information.
In some embodiments, the first detection module includes a first receiving unit, where the first receiving unit is capable of receiving a first detection signal returned by the external object and converting the first detection signal into a corresponding first electrical signal, where the first electrical signal is used to generate the first detection image, and the control unit is capable of identifying whether the first detection image has first biometric information.
In some embodiments, the first detection signal is visible light and/or non-visible light.
In some embodiments, the first detection module further includes a first transmitting unit, where the first transmitting unit is configured to transmit the first detection signal, where the first detection signal returns after reaching an external object and is received by the first receiving unit, and the first detection signal is a visible light or infrared floodlight signal, or an infrared structured light signal, or an infrared TOF light signal.
In some embodiments, the second detection module includes a second receiving unit capable of receiving a second detection signal returned by the external object and converting the second detection signal into a corresponding second electrical signal, where the second electrical signal is used to generate a second detection image of the external object, and the first receiving unit includes a first image sensor, and the second receiving unit includes a second image sensor, where a resolution of the first image sensor is smaller than that of the second image sensor.
In some embodiments, the second detection module includes a second receiving unit, where the second receiving unit is capable of receiving a second detection signal returned by the external object and converting the second detection signal into a corresponding second electrical signal, where the second detection signal is a visible light or infrared floodlight signal or an infrared structural light signal or an infrared TOF light signal.
In some embodiments, the second detection module further includes a second transmitting unit, where the second transmitting unit is configured to transmit the second detection signal, and the second detection signal returns after reaching an external object and is received by the second receiving unit.
In some embodiments, the second receiving unit includes two or more sub-receiving units, and the two or more sub-receiving units receive the second detection signal returned by the external object by using binocular stereo or multi-stereo.
In some embodiments, the first detection module includes a first receiving unit capable of receiving a first detection signal returned by the external object and converting the first detection signal into a corresponding first electrical signal, where the first electrical signal is used to generate the first detection image, and the second detection module includes a second receiving unit capable of receiving a second detection signal returned by the external object and converting the second detection signal into a corresponding second electrical signal, where the second electrical signal is used to generate the second detection image, and power consumption of the first receiving unit is smaller than that of the second receiving unit.
In certain embodiments, the biometric detection device further comprises a transmitting unit for transmitting the first detection signal and the second detection signal.
In some embodiments, the first receiving unit comprises a first image sensor and the second receiving unit comprises a second image sensor, the first image sensor having a resolution that is less than a resolution of the second image sensor.
In some embodiments, the operating current of the first receiving unit is 10uA to 100mA, and the operating current of the second receiving unit is 100mA to 1A.
In certain embodiments, the detection range is a spatial range of 0 to 1 meter, 0 to 2 meters, 0 to 3 meters, 0 to 4 meters, 0 to 5 meters from the biometric detection device.
In some embodiments, the biometric detection device is a smart door lock.
An aspect of the present application provides an electronic device including the above-described biometric detection apparatus.
The biological characteristic detection device and the electronic equipment have the beneficial effects that the biological characteristic detection device and the electronic equipment comprise the first detection module and the second detection module, when an external object exists in a detection range, the first detection module can acquire a first detection image of the external object, and whether the second detection module is started is determined according to whether the first detection image has first biological characteristic information or not. Only when the first detection image has the first biological characteristic information, the second detection module is started, and is not started as long as the external object is detected to be located in the detection range, so that the power consumption is effectively saved.
Drawings
FIG. 1 is a schematic view of one embodiment of a biometric detection device of the present application;
FIG. 2 is a block diagram of the biological feature detection device of FIG. 1;
FIG. 3 is a schematic view of one embodiment of a biometric detection device of the present application;
FIG. 4 is a schematic view of one embodiment of a biometric detection device of the present application;
FIG. 5 is a flow chart of one embodiment of a biometric detection method of the present application.
Detailed Description
In the detailed description of embodiments of the application, it will be understood that when a substrate, sheet, layer, or pattern is referred to as being "on" or "under" another substrate, sheet, layer, or pattern, it can be "directly" or "indirectly" on the other substrate, sheet, layer, or pattern, or one or more intervening layers may also be present. The thickness and size of each layer in the drawings of the specification may be exaggerated, omitted, or schematically represented for clarity. Moreover, the sizes of elements in the drawings do not entirely reflect actual sizes.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Further, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the application. It will be appreciated, however, by one skilled in the art that the inventive aspects may be practiced without one or more of the specific details, or with other structures, components, etc. In other instances, well-known structures or operations are not shown or described in detail to avoid obscuring aspects of the application.
Referring to fig. 1, a biological feature detection device 10 according to the present application is shown. The biometric detection device 10 can be used to detect a preset biometric feature of the external object 1000, for example: face, iris, fingerprint, vein, etc. The biometric detection device 10 is, for example but not limited to, a smart door lock, which may be mounted on the door body 1.
Referring to fig. 2, the biometric sensing device 10 includes a first sensing module 11, a second sensing module 12, a proximity sensing unit 13, and a control unit 14. Optionally, in some embodiments, the control unit 14 is connected to the first detection module 11, the second detection module 12 and the proximity sensing unit 13, respectively. The proximity sensing unit 13 is used for detecting whether the external object 1000 approaches the door body 1. When the proximity sensing unit 13 detects that the external object 1000 approaches the door body 1, the first detection module 11 is configured to detect whether the external object 1000 has a preset biometric feature. The second detection module 12 is configured to detect a preset biometric characteristic of the external object 1000 when the external object 1000 has the preset biometric characteristic. The biometric detection device 10 can verify the identity of the external object 1000 according to the biometric detection result, and can control the door body 1 to be unlocked when the identity verification is passed.
Optionally, in some embodiments, the proximity sensing unit 13 is capable of detecting a position of the external object 1000, and the control unit 14 controls the first detection module 11 to be turned on when the proximity sensing unit 13 detects that the external object 1000 approaches the door body 1. When the proximity sensing unit 13 does not detect that the external object 1000 approaches the door body 1, the first sensing module 11 is not turned on.
Alternatively, in some embodiments, the first detection module 11 can acquire a first detection image of the external object 1000, and the control unit 14 detects whether the first detection image has the first biometric information. The control unit 14 controls whether the second detection module 12 is turned on or not according to the detection result for the first detection image. Specifically, when the detection result is that the control unit 14 detects that the first detection image has the first biometric information, it indicates that the external object 1000 has the preset biometric information, and the control unit 14 controls the second detection module 12 to be turned on. The control unit 14 does not control the second detection module 12 to be turned on when recognizing that the first detection image does not have the first biometric information.
The first biometric information may be information corresponding to a preset biometric in the first detected image. For example, but not limited to, the preset biometric feature is a face, the first detected image is a visible light image, and the first biometric feature information is feature information of the face in the visible light image. The feature information of the face may include the facial feature ratio, size, color, brightness, contour, etc., which are not limited in the present application.
Optionally, after the control unit 14 controls the second detection module 12 to be turned on, the second detection module 12 can acquire a second detection image of the external object 1000, and the control unit 14 can acquire second biometric information from the second detection image and match the second biometric information or biometric information of a combination of the second biometric information and the first biometric information with the pre-stored biometric data to perform biometric detection. The second biometric information may be information corresponding to a preset biometric in the second detection image. For example, but not limited to, the preset biometric feature is a human face, the second detection image is a structured light image, and the second biometric information may be depth information about a human face portion in the structured light image. Of course, in other embodiments, the second detection image may be a visible light image, and the second biometric information may also be feature information of a face in the visible light image.
The control unit 14 may determine whether the external object 1000 is a registered legitimate user by matching the second biometric information, or a combination of the second biometric information and the first biometric information (e.g., 2D face information combined with 3D face information), with pre-stored biometric data, such as, but not limited to, similarity calculation. When the matching result passes, the biometric detection device 10 passes the biometric detection of the external object 1000, and the biometric detection device 1 controls the door body 1 to unlock. When the matching result is not passed, the biological feature detection device 1 controls the door body 1 not to be unlocked. The pre-stored biometric data may be obtained by a legal user through a pre-registration, for example, but not limited to, pre-collecting biometric information of a preset biometric of the legal user and storing as the pre-stored biometric data. Those skilled in the art will appreciate that the present application is not limited thereto.
Optionally, in some embodiments, the proximity sensing unit 13 is configured to detect whether the external object 1000 is present within the detection range. The control unit 14 may control whether the first detection module 11 operates according to the detection result of the proximity sensing unit 13. Alternatively, in some embodiments, the control unit 14 may include one or more control circuits, microprocessors, microcontrollers, central processing units, application processors, image signal processors, etc., or the control unit 14 may include executable logic programs. In some embodiments, the control unit 14 may be a processor of the biometric detection device 10, or may be a processor of an electronic device including the biometric detection device 10, as those skilled in the art will appreciate, and the application is not limited in this regard.
Alternatively, in some embodiments, the detection range may be at least a partial spatial range of a predetermined distance from the door body 1 or the biometric detection device 10, such as, but not limited to, a range of 0 to 1 meter, 0 to 2 meters, 0 to 3 meters, 0 to 4 meters, 0 to 5 meters, or any other suitable distance from the door body 1 or the biometric detection device 10. In general, when the proximity sensing unit 13 detects that the external object 1000 is within the detection range, the control unit 14 controls the first detection module 11 to start operation.
When the control unit 14 detects that the external object 1000 has a preset biological characteristic, the control unit 14 controls the second detection module 12 to start operating. The biometric detection device 10 collects biometric information of the external object 1000 through the second detection module 12 and performs biometric detection of the external object 1000. When the biometric detection result passes, the external object 1000 may manually open the door body 1. When the biometric detection result does not pass, the external object 1000 cannot open the door body 1. Alternatively, in some embodiments, the biometric detection device 10 may control the mechanical door lock of the door body 1 to be opened when the biometric detection result passes.
In some embodiments, for example, but not limited to, the preset biometric is a human face. When the proximity sensing unit 13 detects that the external object 1000 exists within the detection range, the control unit 14 controls the first detection module 11 to start operation. It will be appreciated that if the external object 1000 is a passer-by or a small animal, the first detection module 11 may not be able to obtain a first detection image including first biometric information (e.g., face information). Only when the external object 1000 is a user who needs to open the door, the external object 1000 may consciously face the door body 1, or the biometric detection apparatus 10 may guide the external object 1000 to perform a predetermined motion or posture, so that the first detection module 11 can accurately acquire a first detection image having first biometric information.
Alternatively, in some embodiments, the proximity sensing unit 13 may be a passive infrared detector, and when the external object 1000 is located within the detection range, the proximity sensing unit 13 can detect an infrared radiation signal released by the external object 1000 and generate a corresponding proximity sensing signal. The control unit 14 receives the proximity sensing signal and controls the first detection module 11 to be turned on.
Alternatively, in some embodiments, the proximity sensing unit 13 may be a capacitive proximity sensing sensor or an inductive proximity sensing sensor.
Alternatively, in some embodiments, the proximity sensing unit 13 may detect the position of the external object 1000 using a Time of Flight (TOF) method.
The biometric detection device 10 comprises a first detection module 11 and a second detection module 12, the first detection module 11 being capable of acquiring a first detection image of the external object 1000. If the external object 1000 is only a passerby or a small animal, the first biological characteristic information cannot be generally identified through the first detection image, and the second detection module 12 cannot be started at this time, so that the second detection module 12 is prevented from being started every time the external object 1000 is detected to be located in the detection range, and energy consumption is effectively saved.
Optionally, in some embodiments, the power consumption of the first detection module 11 is smaller than the power consumption of the second detection module 12. When the proximity sensing unit 13 detects that the external object 1000 is located in the detection range, the first detection module 11 is turned on. If the external object 1000 does not need to perform identity authentication, the first detection image of the external object 1000 acquired by the first detection module 11 does not include the first biometric information, so the second detection module 12 will not be turned on. In this way, the second detection module 12 is prevented from being turned on when the proximity sensing unit 13 detects that the external object 1000 is located in the detection range, so that power consumption can be effectively saved.
The first detection module 11 may include a first transmitting unit 111 and a first receiving unit 112. The first transmitting unit 111 is configured to transmit a first detection signal 101, where the first detection signal 101 reaches the external object 1000 and returns. The first receiving unit 112 is configured to receive the first detection signal 101 returned by the external object 1000 and convert the first detection signal into a corresponding first electrical signal, where the first electrical signal is used to generate a first detection image of the external object 1000, and determine whether the external object 1000 has a preset biological feature by identifying whether the first detection image includes first biological feature information.
Optionally, in some embodiments, the first detection signal 101 reaches the external object 1000 and returns a signal including, but not limited to: the first detection signal 101 emitted by the first emitting unit 111 reaches the external object 1000 and is reflected and/or transmitted by the external object 1000.
Alternatively, in some embodiments, the first detection signal 101 may be visible light or non-visible light. For example, but not limited to, the first detection signal 101 may be infrared light or near infrared light.
Alternatively, in some embodiments, the first detection signal 101 may be infrared light, and emitted into the external space using flood light (flood light), and reaches the external object 1000. The first detection module 11 is capable of acquiring first biometric information of the external object 1000 by transmitting the first detection signal 101 to the external object 1000 and receiving the first detection signal 101 returned from the external object 1000. The control unit 14 may be configured to recognize whether the first detection image has the first biometric information, thereby determining whether the external object 1000 has the preset biometric information.
Optionally, in some embodiments, the first detection module 11 may acquire a first detection image of the external object 1000 using structured light (structured light), the first detection signal 101 may have regular or irregular spots, stripes, etc., and the first detection module 11 may be configured to acquire two-dimensional and/or three-dimensional first biometric information, for example, but not limited to, the first detection image may include 2D face information and/or 3D face information. Of course, when the external object 1000 does not have a biometric feature, the first detection image may not include first biometric information, for example: when the external object 1000 is a vehicle, toy, ball, or the like.
Alternatively, in some embodiments, the first transmitting unit 111 may be omitted. The first receiving unit 112 receives visible light or invisible light of the ambient light reflected by the external object 1000 and converts the received visible light or invisible light into a first electrical signal for generating a first detection image of the external object 1000.
Alternatively, in some embodiments, the first detection module 11 may acquire the first detection image of the external object 1000 using a time-of-flight method. Further alternatively, the first detection signal 101 includes a continuous wave adjustment signal and/or a pulse adjustment signal, the first transmitting unit 111 transmits the first detection signal 101, and the receiving unit 112 receives the first detection signal 101 returned by the external object 1000.
In the embodiment or the modified embodiment of the present application, the first detection signal 101 may be an optical signal used for detecting biological characteristics such as floodlight, structured light, time of flight, etc., and the optical signal may be visible light and/or non-visible light. The non-visible light may be infrared light or near infrared light. Of course, in some embodiments, the first detection module 11 may acquire the first detection image of the external object 1000 in different manners, which is understood by those skilled in the art, and the present application is not limited thereto.
Optionally, in some embodiments, the biometric detection device 10 further includes a display (not shown), and when the first detection module 11 is operated, the first receiving unit 112 receives the first detection signal 101 and converts the first detection signal into a first electrical signal, and the first electrical signal is used to generate a first detection image and displays the first detection image on the display. Further, in some embodiments, the biometric detection device 10 may display text or image prompts on the display screen, such as: "please face the display screen", etc., the text or image prompt may be used to guide the external object 1000 to complete a specific action or gesture, so that the first detection module 11 may detect and identify whether the external object 1000 has a preset biological feature more conveniently and more accurately. In other embodiments, the biometric detection device 10 may be configured to guide the external object 1000 through voice prompts to perform a particular action or gesture. The application is not limited in this regard.
The second detection module 12 may include a second transmitting unit 121 and a second receiving unit 122. The second transmitting unit 111 is configured to transmit a second detection signal 102, where the second detection signal 102 reaches the external object 1000 and returns. The second receiving unit 122 is configured to receive the second detection signal 102 returned by the external object 1000 and convert the second detection signal into a corresponding second electrical signal, where the second electrical signal may be used to generate a second detection image of the external object 1000, where the second detection image has second biometric information corresponding to a preset biometric of the external object 1000. That is, the second electrical signal can be used to generate a second detection image of the external object 1000, which may include second biometric information of the external object 1000.
Optionally, the second detection signal 102 reaches the external object 1000 and returns including, but not limited to: the second detection signal 102 emitted by the second emitting unit 121 reaches the external object 1000 and is reflected and/or transmitted by the external object 1000.
Alternatively, in some embodiments, the second detection signal 102 may be visible light or non-visible light. For example, but not limited to, the first detection signal 101 may be infrared light or near infrared light.
Alternatively, in some embodiments, the second detection signal 102 may be an optical signal for floodlight or structured light or time of flight. By transmitting the second detection signal 102 to the external object 1000 and receiving the second detection signal 102 returned from the external object 1000 to acquire a second detection image of the external object 1000, the second biometric information may include three-dimensional biometric information of the external object 1000, such as, but not limited to: depth information. The second detection module 12 may be used to obtain three-dimensional biometric information of the external object 1000. The second biometric information may include 3D face information. Optionally, in some embodiments, the second receiving unit 122 includes two or more sub-receiving units (not shown), and the two or more sub-receiving units receive the second detection signal 102 returned by the external object 1000 by using binocular stereo or multi-stereo to acquire the second biometric information of the external object 1000. Of course, in some embodiments, the second detection signal 102 may be visible light, the second detection image may be a visible light image, and the second biometric information may be two-dimensional biometric information. In summary, in some embodiments, the second detection image may include second biometric information in two dimensions and/or three dimensions.
In an embodiment or a modified embodiment of the present application, the second detection signal 102 may be a floodlight signal, a structured light signal, a TOF light signal, or the like, which can be used to obtain a second detection image or second biometric information of the external object 1000. The second detection module 12 thus enables the acquisition of two-dimensional and/or three-dimensional biometric information of the external object 1000, the biometric detection device 10 being able to have two-dimensional and/or three-dimensional biometric detection and recognition. Those skilled in the art will appreciate that the present application is not limited in this regard.
Alternatively, in some embodiments, the first receiving unit 112 may include a first image sensor, and the second receiving unit 122 may include a second image sensor, and the power consumption of the first receiving unit 112 is smaller than the power consumption of the second image sensor. For example, but not limited to, taking a preset biometric feature as a human face as an example, the first receiving unit 112 may include a low-power-consumption image sensor, and the second receiving unit 122 may include a normal-power-consumption or high-power-consumption image sensor. The first receiving unit 112 can acquire a first detection image of the external object 1000, which can be used to recognize whether there is face information. If the biometric detection device 10 does not detect and recognize the face information from the first detection image acquired by the first detection module 11, the second detection module 12 is not turned on. The second detection module 12 is turned on only when the biometric detection device 10 recognizes the face information by acquiring the first detection image through the first detection module 11. Therefore, with the first detection module 11 with low power consumption, the second detection module 12 with larger power consumption can be prevented from being turned on every time the external object 1000 is detected within the detection range, thereby effectively saving power consumption. If face information is detected in the first detection image, the external object 1000 is considered to have a face. Further alternatively, the first image sensor may be a visible light image sensor, the first detection signal 101 may be visible light, and the first detection image may be a visible light image. The second image sensor may be an infrared image sensor, the second detection signal 102 may be a structured light beam, and the second detection image may be a structured light image (e.g., a speckle image).
Alternatively, in some embodiments, the proximity sensing unit outputs a proximity sensing signal indicating the presence of the external object 1000 within the detection range to the control unit 14 when the external object 1000 is detected within the detection range. The control unit 14 controls the first detection module 11 to be turned on according to the proximity sensing signal, and acquires a first detection image of the external object 1000. The control unit 14 detects the first detection image, for example, determines whether the first detection image has first biometric information based on a face recognition algorithm, for example: face information. When the control unit 14 detects the first biometric information in the first detection image, the second detection module 12 is controlled to be turned on. The second detection module 12 acquires a second detection image of the external object 1000, the second detection image including second biometric information, and the control unit 14 performs biometric detection based on the second detection image and pre-stored biometric data, including but not limited to: and extracting second biological characteristic information from the second detection image, and matching the second biological characteristic information with the biological characteristic data stored in advance. When the matching is successful, it is judged that the external object 1000 is a legitimate user, authentication is passed, and the biometric detection apparatus 10 or the electronic device including the biometric detection apparatus 10 can perform the next operation based on the authentication passed, for example: unlock, open door, pay, etc. Otherwise, it is determined that the external object 1000 is not a legitimate user, and authentication is not passed.
Optionally, in some embodiments, the preset biometric features may include a face, a fingerprint, an iris, a vein, and the like.
Alternatively, in some embodiments, the operating current of the first receiving unit 112 may be 10uA (microamps) to 100mA (milliamps), the operating current of the second receiving unit 122 may be 100mA to 1A (amps), and the power consumption of the first receiving unit 112 is less than the power consumption of the first receiving unit 122.
Optionally, in some embodiments, the power consumption of the first transmitting unit 111 is less than the power consumption of the second transmitting unit 121. For example, but not limited to, the first and second emission units 111 and 121 include light emitting elements of the same specification, and the number of light emitting elements of the second emission unit 121 is greater than the number of light emitting elements of the first emission unit 111. Such as, but not limited to: a Light Emitting Diode (LED), a Vertical Cavity Surface Emitting Laser (VCSEL), or any other suitable light emitting component.
Alternatively, in some embodiments, the first transmitting unit 111 and the second transmitting unit 121 may be the same transmitting unit, and the transmitting units are multiplexed to provide the first detection signal 101 and the second detection signal 102.
Alternatively, in some embodiments, the first electrical signal may be used to generate a first detected image of the external object 1000 and the second electrical signal may be used to generate a second detected image of the external object 1000. The resolution of the first detection image is smaller than the resolution of the second detection image. For example, but not limited to, the resolution of the first detection image may be 640 x 480; the resolution of the second detection image may be 1024×768 or more, which is not particularly limited by the present application.
It should be noted that the face information may be a contour of the face and/or at least a part of a facial feature of the face, or any feature capable of identifying the face from the first detected image. The first detected image may be typically analyzed by a face recognition algorithm. The first detection module 11 may include a low power consumption camera, and the first detection image may be a low resolution image, which is used only for judging whether face information is included, so that power consumption can be saved when the biometric detection device 10 is in a standby state (a state in which biometric detection is not turned on). When the control unit 14 recognizes the face information in the first detection image, it indicates that the external object 1000 has a face, and the control unit 14 controls the second detection module 12 to be turned on, and then captures a second detection image with high resolution of the external object 1000 and performs face detection. The face detection may be performed based on the second detection image or based on a combination of the first detection image and the second detection image. Thus, the biometric sensing device 10 of the present application has superior safety and efficiency.
Alternatively, in some embodiments, the biometric detection device 10 may be used to detect and identify a preset biometric of the external object 1000 and verify that the identity of the external object 1000 is legitimate. After the external object 1000 is detected and identified by the biometric feature detection device 10, the mechanical door lock of the door body 1 can be opened manually. In other embodiments, the biometric sensing device 10 may be configured to control the mechanical door lock of the door body 1 to be opened via an electrical mechanism. In other embodiments, the door body 1 includes an electronic lock, and the external object 1000 can unlock the electronic lock of the door body 1 after the biometric detection and identification by the biometric detection device 10. It will be appreciated that the biometric detection device 10 may be used for biometric detection and identification of an external object 1000 and may be used to verify the identity of the external object 1000. Therefore, the biometric detection device 10 can be used in factories, communities, families, theatres, movie theaters, museums, hospitals, banks, private lockers, safes and other various scenes and products to realize user identification verification through biometric detection. Although in the embodiment, the biometric detection device 10 is described as being mounted on the door body 1 as an example, the present application is not limited thereto.
Alternatively, in some embodiments, the biometric detection device 10 may pre-store biometric data of the external object 1000. The biometric detection device 10 compares the second biometric information of the external object 1000 acquired by the second detection module 12 with the pre-stored biometric data, and indicates that the biometric detection is passed when the feature comparison reaches a preset matching degree. Otherwise, it indicates that the biometric detection is not passed. In addition, it can be understood that the second detection module 12 of the biometric detection device 10 does not operate when the mechanical door lock of the door body 1 is in an open state.
Referring to fig. 3, which is a block diagram illustrating an alternative embodiment of the present application, fig. 3 illustrates a biological feature detection device 10a and the biological feature detection device 10 having substantially the same structure. The main difference is that the biometric detection device 10a comprises a proximity sensing unit 13a, the proximity sensing unit 13a comprising a transmitter 131 and a receiver 132. The transmitter 131 is configured to transmit the proximity detection signal 103. When the external object 1000 approaches the biometric detection device 10a, the proximity detection signal 103 can reach the external object 1000 and return. The receiver 132 is configured to receive the proximity detection signal 103 returned by the external object 1000 and generate a corresponding proximity sensing signal. When the proximity sensing signal indicates that the external object 1000 is within the detection range, the control unit 14 may control the first detection module 11 to be turned on, the first detection module 11 may be used to generate a first detection image of the external object 1000, and the biometric detection device 10a may recognize whether the external object 1000 has a preset biometric feature according to the first detection image of the external object 1000. When the external object has a preset biometric feature, the second detection module 12 is turned on and detects and recognizes the preset biometric feature of the external object 1000.
Optionally, in some embodiments. The proximity detection signal 103 may include visible light or invisible light. For example, but not limited to, the proximity detection signal 103 may be infrared light or near infrared light. The proximity detection signal 103 may be near infrared light having a wavelength ranging between 800 nm and 2000 nm, for example. Alternatively, the transmitter 131 may be an infrared emitting element and the receiver 132 may be an infrared receiving element. The transmitter 111 and the receiver 112 may be integrated in one chip or provided in different chips, respectively. Of course, alternatively, in some embodiments, the proximity detection signal 103 may be an ultrasonic wave, the transmitter 131 may be an ultrasonic wave transmitter, and the receiver 132 may be an ultrasonic wave receiver. The application is not limited in this regard.
Alternatively, in some embodiments, the transmitter 131 may transmit the proximity detection signal 103 at a preset period, for example, but not limited to, the transmitter 131 may transmit the proximity detection signal 103 at a frequency of 1 to 30 times per second, and the receiver 132 may receive the proximity detection signal 103 returned from the external object 1000 at the same frequency or at a different frequency, so as to determine whether the external object 1000 is located within the detection range.
When the external object 1000 enters the detection range from the outside, the receiver 132 receives the proximity detection signal 103 returned from the external object 1000 located within the detection range, and generates a corresponding proximity sensing signal, and the control unit 14 controls whether the first detection module 11 is turned on according to the proximity sensing signal. It will be appreciated that since the proximity detection signal 103 arrives at the external object 1000 after being emitted from the emitter 131 and then is received back by the receiver 112 and generates a proximity sensing signal, the magnitude (or strength) of the proximity sensing signal is correlated with the distance between the external object 1000 and the biometric detection device 10. According to the proximity sensing signal, the control unit 14 can control the first detection module 11 to start or stop working.
Referring to fig. 4, which is a block diagram illustrating an alternative embodiment of the present application, fig. 4 illustrates a biological feature detection device 10b and the biological feature detection device 10 having substantially the same structure. The main difference is that the biometric sensing device 10b omits the proximity sensing unit 13 with respect to the biometric sensing device 10. The first detection module 11 of the biometric detection device 10b remains in continuous operation. For example, but not limited to, the first detection module 11 photographs at a preset frequency to obtain a first detection image, the biometric detection device 10b recognizes the first detection image, and when the external object 1000 enters a detection range to recognize a preset biometric feature from the first detection image, the control unit 14 of the biometric detection device 10b controls the second detection module 12 to be turned on to further detect and recognize the preset biometric feature of the external object 1000. Such as, but not limited to, a number of times of any number of 1 to 60 per second. The application is not limited in this regard. When the external object 1000 does not have the preset biometric feature or the external object 1000 is merely a road, the biometric detection device 10b cannot recognize the preset biometric feature from the first detection image, so that the second detection module 12 is not turned on.
In the prior art, a common biometric detection device starts a biometric detection module to perform biometric detection (including capturing an image of an external object, acquiring biometric information on the image, and matching with pre-stored biometric data) on the external object when the external object 1000 is located in a detection range, so that whether the external object 1000 has a preset biometric feature cannot be identified, and when the external object 1000 is a passerby or a small animal, the starting of the biometric detection module causes waste of power consumption.
In some embodiments of the present application, the power consumption of the first detection module 11 is smaller than the power consumption of the second detection module 12. Whether the external object 1000 has a preset biological characteristic is detected using the first detection module 11. If the external object 1000 is only a passerby or a small animal, the first detection module 11 cannot detect the preset biological characteristics of the external object 1000, so that the second detection module 12 cannot be turned on, and the second detection module 12 is prevented from being turned on when the external object 1000 is detected to be located in the detection range, thereby effectively saving power consumption. Under the same electric quantity, compared with the prior art, the biological detection device 10, 10a and 10b can work for a longer time and has better user experience.
Referring to fig. 5, a flowchart of an embodiment of a method for detecting a biological feature according to the present application is shown. The biological feature detection method may be used for the biological feature detection devices 10 and 10a in the embodiment of the present application.
The biological feature detection method comprises the following steps:
step S1: providing a biological feature detection device which can carry out biological feature detection on an external object positioned in a preset detection range, wherein the biological feature detection device comprises a first detection module, a second detection module and a proximity sensing unit, and the power consumption of the first detection module is smaller than that of the second detection module;
step S2: the proximity sensing unit detects whether an external object exists in the detection range; when no external object exists in the detection range, the first detection module is not started, and the proximity sensing unit continues to detect whether the external object exists in the detection range;
step S3: when an external object exists in the detection range, the first detection module starts and acquires a first detection image of the external object, and detects whether the first detection image has first biological characteristic information corresponding to a preset biological characteristic; when the first detection image is detected to have no first biological characteristic information, the second detection module is not started, the first detection module stops working, and the proximity sensing unit continuously detects whether an external object exists in the detection range;
Step S4: when the first detection image is detected to have the first biological characteristic information, the second detection module starts and acquires a second detection image of the external object, the second detection image has second biological characteristic information corresponding to the preset biological characteristic, and the second biological characteristic information is compared with the pre-stored biological characteristic data to execute biological characteristic detection of the preset biological characteristic of the external object.
Optionally, in some embodiments, the detecting whether the first detected image has the first biometric information corresponding to the preset biometric information in step S3 includes: the first detection module photographs an external object for N times, so that N first detection images of the external object are obtained, and the biological characteristic detection device identifies one or more of the N first detection images to judge whether the external object has first biological characteristic information. Alternatively, N may be any number between 1 and 60.
Optionally, in some embodiments, the step S2 of detecting whether the external object exists in the detection range by the biometric detection device includes: detecting whether an external object exists in the detection range or not every preset period. The preset period may be 1 second, that is, detecting whether an external object exists in the detection range every 1 second. Alternatively, the preset period may be 0.5 seconds, 1 second, 1.5 seconds, 2 seconds, 3 seconds, or any time length between 0 and 300 seconds, which is not limited by the present application.
Optionally, in some embodiments, the detection range is a partial spatial range having a preset distance from the biometric detection device. Further, the detection range is 0 to 1 meter, 0 to 2 meters, 0 to 3 meters, 0 to 4 meters, 0 to 5 meters, or any other suitable spatial range from the biometric detection device.
According to the biological feature detection method, a first detection module with low power consumption is used for acquiring a first detection image of an external object and judging whether the external object is detected to have the preset biological feature or not, if the acquired first detection image of the external object does not have the first biological feature information, the external object is considered to have no preset biological feature, further biological feature detection is not needed, and a second detection module is not started, so that the power consumption is effectively saved.
It should be understood by those skilled in the art that, without any inventive effort, some or all of the embodiments of the present invention and some or all of the modifications, substitutions, alterations, permutations, combinations, extensions and the like of the embodiments are considered to be covered by the inventive concept of the present invention, and are within the scope of the present invention.
Any reference in this disclosure to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Such phrases in various places throughout this specification are not necessarily all referring to the same embodiment. In addition, when a particular feature or structure is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature or structure in connection with other ones of the embodiments.
The references to "length", "width", "upper", "lower", "left", "right", "front", "rear", "back", "front", "vertical", "horizontal", "top", "bottom", "interior", "exterior", etc., as may be made in this specification are merely for convenience in describing embodiments of the application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the application. Like reference numerals and letters designate like items in the drawings, and thus once an item is defined in one drawing, no further definition or explanation thereof is necessary in the subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance. In the description of the present application, the meaning of "plurality" or "plurality" means at least two or two, unless specifically defined otherwise. In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, or may be internal communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. The terms used in the following claims should not be construed to limit the invention to the specific embodiments disclosed in the specification. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (18)

1. A biometric detection device capable of biometric detection of an external object located within a preset detection range, the biometric detection device storing biometric data in advance, comprising:
the first detection module is used for acquiring a first detection image of an external object;
the second detection module is used for acquiring a second detection image of the external object when the external object has preset biological characteristics;
a control unit for detecting whether the first detection image has first biometric information to confirm whether an external object has a preset biometric;
the control unit detects that the first detection image has first biological characteristic information, and the first biological characteristic information indicates that an external object has preset biological characteristics, wherein the first biological characteristic information comprises at least one of the proportion, the size, the color, the brightness and the outline of the facial features, and the preset biological characteristics are the facial features; the control unit controls the second detection module to be started to acquire a second detection image of the external object, and can acquire second biological characteristic information from the second detection image and match the second biological characteristic information or the combination of the second biological characteristic information and the first biological characteristic information with biological characteristic data stored in advance so as to execute biological characteristic detection; when the control unit detects that the first detection image does not have the first biological characteristic information, the external object does not have the preset biological characteristic, and the control unit does not control the second detection module to be started; the power consumption of the first detection module is smaller than that of the second detection module.
2. The biometric detection device according to claim 1, further comprising a proximity sensing unit capable of generating a proximity sensing signal indicating whether an external object is within a detection range, the biometric detection device further comprising a control unit controlling whether the first detection module operates according to the proximity sensing signal, the control unit controlling the first detection module to be turned on when the proximity sensing signal indicates that the external object is within the detection range; when the proximity sensing signal indicates that an external object is located outside the detection range or when the proximity sensing unit does not generate the proximity sensing signal, the control unit does not control the first detection module to be turned on.
3. The biometric sensing device of claim 2, wherein the proximity sensing unit is a capacitive proximity sensing sensor or an inductive proximity sensing sensor or a passive infrared detector, the proximity sensing unit generating a proximity sensing signal when an external object is detected to be in proximity; or the proximity sensing unit includes a transmitter that transmits a proximity detection signal and a receiver that can generate a proximity sensing signal according to the proximity detection signal returned from the external object.
4. The biometric detection device of claim 1, wherein the first biometric information is 2D face information and the second biometric information is 2D face information and/or 3D face information.
5. The biometric detection device of claim 1, wherein the first detection module includes a first receiving unit capable of receiving a first detection signal returned from an external object and converting the first detection signal into a corresponding first electrical signal, the first electrical signal being used to generate the first detection image, and the control unit is capable of recognizing whether the first detection image has first biometric information.
6. The biometric sensing device of claim 5, wherein the first sensing signal is visible light and/or non-visible light.
7. The biometric detection device of claim 5, wherein the first detection module further comprises a first transmitting unit configured to transmit the first detection signal, the first detection signal returning after reaching an external object and being received by the first receiving unit, the first detection signal being a visible light or infrared floodlight signal or an infrared structured light signal or an infrared TOF light signal.
8. The biometric detection device of claim 5, wherein the second detection module includes a second receiving unit capable of receiving a second detection signal returned by the external object and converting the second detection signal into a corresponding second electrical signal, the second electrical signal being used to generate a second detection image of the external object, the first receiving unit including a first image sensor, the second receiving unit including a second image sensor, the first image sensor having a resolution less than the second image sensor.
9. The apparatus according to claim 1, wherein the second detection module includes a second receiving unit, and the second receiving unit is capable of receiving a second detection signal returned by the external object and converting the second detection signal into a corresponding second electrical signal, where the second detection signal is a visible light or infrared floodlight signal, or an infrared structured light signal, or an infrared TOF light signal.
10. The biometric detection device of claim 9, wherein the second detection module further comprises a second transmission unit for transmitting the second detection signal, the second detection signal returning after reaching an external object and being received by the second receiving unit.
11. The biometric detection device according to claim 9, wherein the second receiving unit includes two or more sub-receiving units that receive the second detection signal returned from the external object using binocular stereoscopic or multi-stereoscopic.
12. The biometric detection device of claim 1, wherein the first detection module includes a first receiving unit capable of receiving a first detection signal returned from an external object and converting the first detection signal into a corresponding first electrical signal, the first electrical signal being used to generate the first detection image, and the second detection module includes a second receiving unit capable of receiving a second detection signal returned from the external object and converting the second detection signal into a corresponding second electrical signal, the second electrical signal being used to generate the second detection image, the power consumption of the first receiving unit being less than the power consumption of the second receiving unit.
13. The biometric detection device of claim 12, further comprising a transmitting unit for transmitting the first detection signal and the second detection signal.
14. The biometric detection device of claim 12, wherein the first receiving unit includes a first image sensor and the second receiving unit includes a second image sensor, the first image sensor having a resolution that is less than a resolution of the second image sensor.
15. The biometric sensing device of claim 12, wherein the first receiving unit has an operating current of 10uA to 100mA and the second receiving unit has an operating current of 100mA to 1A.
16. The biometric sensing device of claim 1, wherein the sensing range is a spatial range of 0 to 1 meter, 0 to 2 meters, 0 to 3 meters, 0 to 4 meters, 0 to 5 meters from the biometric sensing device.
17. The biometric sensing device of claim 1, wherein the biometric sensing device is a smart door lock.
18. An electronic device comprising the biometric detection apparatus as claimed in any one of claims 1 to 17.
CN202010183861.3A 2020-03-16 2020-03-16 Biological feature detection device and electronic device Active CN111460925B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010183861.3A CN111460925B (en) 2020-03-16 2020-03-16 Biological feature detection device and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010183861.3A CN111460925B (en) 2020-03-16 2020-03-16 Biological feature detection device and electronic device

Publications (2)

Publication Number Publication Date
CN111460925A CN111460925A (en) 2020-07-28
CN111460925B true CN111460925B (en) 2023-10-27

Family

ID=71684305

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010183861.3A Active CN111460925B (en) 2020-03-16 2020-03-16 Biological feature detection device and electronic device

Country Status (1)

Country Link
CN (1) CN111460925B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107390853A (en) * 2017-06-26 2017-11-24 广东欧珀移动通信有限公司 Electronic installation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107390853A (en) * 2017-06-26 2017-11-24 广东欧珀移动通信有限公司 Electronic installation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
基于特定环境的面部活体检测;李素梅等;《华中科技大学学报(自然科学版)》;20181130(第11期);第87-91页 *

Also Published As

Publication number Publication date
CN111460925A (en) 2020-07-28

Similar Documents

Publication Publication Date Title
US10922395B2 (en) Facial authentication systems and methods utilizing time of flight sensing
KR101700595B1 (en) Face recognition apparatus and method thereof
JP4692174B2 (en) Personal authentication device and door opening / closing system
US8831295B2 (en) Electronic device configured to apply facial recognition based upon reflected infrared illumination and related methods
WO2015114872A1 (en) Biometric authentication device and biometric authentication method
CN111095297B (en) Face recognition device and method and electronic equipment
CN113518846B (en) Access control system with moving door and visual status information
CN109196520A (en) Biometric devices, method and electronic equipment
TWI669231B (en) Method and system for unlocking vehicle
CN212160784U (en) Identity recognition device and entrance guard equipment
JP5314294B2 (en) Face recognition device
CN109243024A (en) A kind of automobile unlocking system and method based on recognition of face
CN116189334A (en) Face recognition method and device, computer readable storage medium and vehicle
CN111460925B (en) Biological feature detection device and electronic device
CN111223219A (en) Identity recognition method and storage medium
KR20190008474A (en) Electronic safe box having secure function of biometric data
CN108513661A (en) Identification authentication method, identification authentication device and electronic equipment
TWI623456B (en) Powerless smart key, unlocking system, unlocking method for vehicle
CN212160113U (en) Biometric detection system and device
CN211427406U (en) Intelligent door lock and electronic equipment
CN115162854B (en) Finger locking and unlocking method
KR20220028530A (en) User authentication device and control method thereof
CN111123391A (en) Biological characteristic detection system, door lock and electronic equipment
CN113508211A (en) Access control system with a sliding door that opens from the inside without contact
KR101803396B1 (en) Method for relaying financial transaction with multiple safety function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant