WO2018191940A1 - 生物特征数据的检测方法、生物特征识别装置和电子终端 - Google Patents

生物特征数据的检测方法、生物特征识别装置和电子终端 Download PDF

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Publication number
WO2018191940A1
WO2018191940A1 PCT/CN2017/081384 CN2017081384W WO2018191940A1 WO 2018191940 A1 WO2018191940 A1 WO 2018191940A1 CN 2017081384 W CN2017081384 W CN 2017081384W WO 2018191940 A1 WO2018191940 A1 WO 2018191940A1
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WIPO (PCT)
Prior art keywords
biometric
phase
stage
registration
matching
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PCT/CN2017/081384
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English (en)
French (fr)
Inventor
林金辉
Original Assignee
深圳市汇顶科技股份有限公司
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Publication date
Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to EP17764500.9A priority Critical patent/EP3584740B1/en
Priority to CN201780000249.4A priority patent/CN107223256B/zh
Priority to KR1020177026727A priority patent/KR102017407B1/ko
Priority to CN201910124248.1A priority patent/CN109886187B/zh
Priority to PCT/CN2017/081384 priority patent/WO2018191940A1/zh
Priority to US15/708,086 priority patent/US10726114B2/en
Publication of WO2018191940A1 publication Critical patent/WO2018191940A1/zh
Priority to US16/854,139 priority patent/US11120114B2/en

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    • 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
    • G06V40/1365—Matching; Classification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/141—Control of illumination
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/98—Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns
    • G06V10/993—Evaluation of the quality of the acquired pattern
    • 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
    • G06V40/13—Sensors therefor
    • G06V40/1312—Sensors therefor direct reading, e.g. contactless acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0462—Apparatus with built-in sensors
    • 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
    • G06F21/60—Protecting data

Definitions

  • Embodiments of the present invention relate to the field of information security, and in particular, to a method for detecting biometric data, a biometric identification device, and an electronic terminal.
  • fingerprint authentication replaces traditional password authentication, gesture action authentication, etc., so that authentication does not require other operations, only the finger and the sensor are required to contact, while ensuring the security of the mobile terminal,
  • the convenience of the use of the mobile terminal is greatly increased, so that the fingerprint feature recognition function becomes a standard for mobile terminals and even traditional electronic products.
  • the above fingerprint feature recognition technology is usually integrated in the front Home button of the product in the mobile terminal product or even the traditional electronic product, or a separate fingerprint feature recognition button is added on the back of the product, and in the process of using, Press the front Home button or the fingerprint feature recognition button on the back to implement the fingerprint feature detection function.
  • the implementation of the fingerprint feature recognition function generally includes two stages: a fingerprint feature registration phase and a fingerprint feature matching phase, and fingerprint feature data is collected in advance during the fingerprint feature recognition registration phase, and fingerprint feature data is collected in advance in the fingerprint feature matching phase. The collected fingerprint feature data is compared to complete the legality authentication.
  • the environment for forming fingerprint feature data in the fingerprint feature registration registration phase and the fingerprint feature registration phase is often different, for the fingerprint feature recognition realized by the light reflection principle, the external illumination environment of the fingerprint feature registration phase and the fingerprint feature matching phase are different. As a result, the photosensitive environment of the fingerprint feature matching stage is different, which leads to poor fingerprint feature recognition in the fingerprint feature matching stage.
  • An object of the present invention is to provide a method for detecting biometric data, a biometric device, and an electronic terminal, which are used to solve at least the above problems in the prior art.
  • an embodiment of the present invention provides a biometric data. Detection method, which includes:
  • the embodiment of the present invention further provides a biometric identification device, comprising: a biometric detection device and a biometric detection driving unit, wherein the biometric detection driving unit is configured to: according to a first illumination environment parameter of an external environment during a biometric registration phase; a second illumination environment parameter of the external environment of the biometric matching stage, determining an ambient light environment change factor of the biometric detection device relative to the biometric registration phase during the biometric matching phase, and matching according to the biometric feature Adjusting the quality influence factor of the biometric data of the biometric matching stage relative to the external illumination environment change factor of the biometric registration stage, and driving the biometric detecting device to perform biometric data detection in the biometric matching stage .
  • a biometric identification device comprising: a biometric detection device and a biometric detection driving unit, wherein the biometric detection driving unit is configured to: according to a first illumination environment parameter of an external environment during a biometric registration phase; a second illumination environment parameter of the external environment of the biometric matching stage, determining an ambient light environment change
  • An embodiment of the present invention further provides an electronic terminal, comprising: a light sensor and a biometric identification device as described above, wherein the light sensor is configured to respectively determine an external environment of the biometric identification device during the biometric registration phase The first illumination environment parameter and the second illumination environment parameter of the external environment of the biometric matching phase.
  • determining the biometric matching phase relative to the biometric registration phase by using a first lighting environment parameter of an external environment of the biometric registration phase and a second lighting environment parameter of an external environment of the biometric matching phase
  • the ambient light environment change factor adjusting the quality influence factor of the biometric data of the biometric matching stage according to the external light environment change factor of the biometric matching stage relative to the biometric registration stage, and driving the biometric detecting device
  • the biometric data is detected during the biometric matching phase, thereby avoiding the biometric recognition effect caused by the difference between the biometric identification registration phase and the biometric registration phase forming biometric data, and improving the biometric recognition performance.
  • Embodiment 1 is a schematic flowchart of a method for detecting biometric data in Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for detecting biometric data in Embodiment 2 of the present invention
  • Embodiment 3 is a schematic flowchart of a method for detecting biometric data in Embodiment 3 of the present invention
  • FIG. 4 is a schematic structural diagram of a biometric identification device according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic diagram of application of the biometric identification device in the fifth embodiment of the present invention.
  • FIG. 6 is a schematic diagram of application of a biometric identification device according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of an electronic terminal according to Embodiment 7 of the present invention.
  • FIG. 8 is a schematic diagram of application of a biometric identification device according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic diagram of a specific application of a biometric identification device on an electronic terminal according to an embodiment of the present invention.
  • the biometric matching phase is determined relative to the biometric feature according to a first lighting environment parameter of an external environment of the biometric registration phase and a second lighting environment parameter of an external environment of the biometric matching phase.
  • the feature detecting device detects the biometric data in the biometric matching stage, thereby avoiding the biometric feature difference caused by the difference in the biometrics registration phase and the biometric registration phase forming biometric data, and improving the biometric feature. Identifyed performance.
  • the method for detecting biometric data may be applied to an electronic terminal having a biometric detection function, such as a mobile terminal such as a smart phone or a tablet computer, wherein the biometric features may include, but are not limited to, a fingerprint, a heart rate, and a blood. Oxygen concentration, etc.
  • the electronic terminal may detect the biometric feature by using a biometric identification device; taking the fingerprint as an example, the electronic terminal may include a fingerprint feature recognition device.
  • FIG. 9 is a schematic diagram of a specific application of a biometric identification device on an electronic terminal according to an embodiment of the present invention.
  • the biometric identification device takes a fingerprint feature recognition device as an example.
  • the effective fingerprint detection range A, B of the fingerprint feature recognition device may cover at least part of the display area of the display screen 901 of the electronic terminal 900, and the user presses the display by the finger 700.
  • the fingerprint feature recognition device can perform fingerprint feature detection on the user, thereby implementing the on-screen fingerprint detection function.
  • the display screen may be an OLED display screen
  • the fingerprint feature recognition device may be an optical fingerprint recognition device, which may be configured by an under display or integrated into an in display.
  • the structure is implemented.
  • the fingerprint feature recognition device can adopt an independent function component and is directly disposed under the display area of the display screen.
  • the fingerprint feature detection device can also integrate some functions of the display screen, such as using an OLED display.
  • the OLED pixel unit of the screen serves as a light source (ie, an OLED light source) or the like.
  • the electronic terminal 900 includes a light sensor 701, and the light sensor 701 may be disposed at a periphery of a display area of the display screen 901, such as at a top edge of the electronic terminal 900. Test the intensity of the external environment.
  • the light sensor 701 may also be integrally disposed inside the display area of the display screen 901.
  • the light is
  • the sensor 701 may be integrated inside the fingerprint feature recognition device, for example, using a part of the fingerprint sensing unit of the fingerprint feature recognition device to implement light intensity detection, or independently setting a light sensing unit on the periphery of the fingerprint sensing unit array to implement light. Strong detection.
  • the biometric identification device can also adopt a similar structure to implement the corresponding in-screen biometric detection.
  • the number of effective fingerprint detection ranges and specifically means that the location can be customized according to user preferences.
  • the quality of the biometric data can be understood as the quality of the biometric data, for example, if it is based on an image, it may be an image. Sharpness, noise, etc., the quality impact factor of biometric data can be understood as any factor that may affect the quality of biometric data. For example, based on the image, the lighting environment that can be formed by the image, the working parameters of the acquired image, etc. As shown in Figure 1, the method in this embodiment includes:
  • the fingerprint feature data is pre-collected in the biometric registration stage for comparison with the fingerprint feature data collected in real time during the biometric matching phase, thereby performing legality authentication.
  • the biometric feature can be a fingerprint feature.
  • the fingerprint feature recognition is realized by an optical reflection principle.
  • the fingerprint sensor for implementing fingerprint feature recognition may include a light source and a sensing unit. The light emitted by the light source is blocked by a finger or other object and then reflected to the sensing unit and received by the sensing unit. The unit receives the light generating fingerprint feature data, and the fingerprint feature data is specifically a fingerprint feature image.
  • the light source of the fingerprint sensor is independent of the light source of the display screen, and may be a light source in a common display, such as an organic light emitting diode (OLED) display. OLED, detailed description of the drawings.
  • OLED organic light emitting diode
  • the light intensity of the first ambient light environment (indicated by n1) of the external environment of the biometric registration stage and the second ambient light intensity of the external environment of the biometric matching stage may be specifically determined by the light sensor (using n2) Express).
  • the light sensor may be a light sensor existing on the electronic terminal, or may be an additional light sensor for the purpose of implementing the embodiment.
  • the adjustment of the light intensity may be such that the biometric matching phase is at least similar to the quality of the biometric data of the biometric registration phase.
  • the ambient light change factor and the light source may be determined according to the biometric matching stage relative to the biometric registration stage.
  • the second intensity of the source at the biometric matching stage is adjusted.
  • the quality of the biometric data may specifically be the sharpness of the fingerprint feature image.
  • the quality of the biometric data is not limited to the sharpness of the fingerprint feature image, and may be, for example, noise of the image.
  • the first light intensity s1 by applying a driving signal applied to the light source to the light source registration stage.
  • the second light intensity when the second light intensity is known, it can be controlled
  • the drive signal of the light source is such that the light source reaches a second intensity during the biometric registration phase.
  • n1 represents the intensity of the first ambient light environment
  • n2 represents the intensity of the second ambient light environment
  • s1 represents the first light intensity
  • s2 represents the second light intensity
  • ⁇ denotes the filter coefficient
  • the filter coefficient reflects the degree of filtering treatment of the disturbance light other than the light source.
  • the change of the light intensity is specifically used as the ambient light environment change factor.
  • the indicator of the degree of change of the biometric registration stage and the biometric matching stage can be reflected, it is not limited to the light intensity. .
  • the second light intensity is inversely proportional to the light intensity of the second ambient light environment, and the light intensity of the second ambient light environment is larger, the second light intensity is smaller, and the second light intensity is smaller;
  • the two light intensity is proportional to the first light intensity. The larger the first light intensity is, the larger the second light intensity is, and the second light intensity is smaller.
  • the corresponding driving signal of the light source is adjusted so that the light emitted by the light source reaches the second light intensity s2, thereby sensitizing the fingerprint feature registration stage and the fingerprint feature matching stage.
  • the environment is as similar or even the same as possible, so that the biometric matching stage and the fingerprint feature image of the biometric registration stage are at least similar in definition, or the same, for example, the mean values of the fingerprint feature images are similar or identical, thereby The performance of fingerprint feature recognition is guaranteed.
  • the ambient light environment change factor of the biometric matching stage relative to the biometric registration stage and the operating parameter of the sensing unit in the biometric registration stage may also be used.
  • the difference from the above embodiment is that, in the second and third embodiments, instead of the light intensity of the light source but the operating parameters of the sensing unit, the biological characteristics are In the matching phase and the biometric registration phase, the brightness of the light source is set to the maximum brightness.
  • the biometric matching phase and the biometric registration phase it is not necessary to set the brightness of the light source to the maximum brightness, and the light source may also be bright.
  • the degree is set to set the brightness as long as the brightness of the light source is the same in the biometric matching phase and the biometric registration phase.
  • FIG. 2 is a schematic flowchart of a method for detecting biometric data in Embodiment 2 of the present invention; in this embodiment, the ADC gain coefficient of the biometric registration phase and the biometric matching phase is maintained, but the exposure of the biometric matching phase is adjusted. time.
  • the method in this embodiment includes:
  • step S201 in this embodiment reference may be made to the foregoing embodiment of FIG. 1 , and details are not described herein again.
  • both are maximum values, and therefore, Obtain the light intensity of the light source during the biometric registration phase and the biometric matching phase.
  • expo1 represents the first exposure time
  • expo2 represents the second exposure time
  • ⁇ represents the filter coefficient. Indicates the external light environment change factor.
  • the second exposure time expo2 is inversely proportional to the second light intensity n 2 , and the second light intensity corresponds to the biometric matching phase, and the light intensity of the external environment is greater during the biometric matching phase.
  • the second exposure time expo2 is smaller; at the same time, the first exposure time expo1 is proportional, and the first exposure time expo1 is larger, and the second exposure time expo2 is also larger.
  • S203 Control the sensing unit to be sensitive according to the second exposure time of the sensing unit in the biometric matching stage, and detect the biometric data in the biometric matching stage.
  • the adjusting of the second exposure time and correspondingly controlling the sensing unit sensing may make the biometric matching phase and the biometric data of the biometric registration phase at least similar in quality.
  • the duration of the sensing of the sensing unit is controlled by the second exposure time, so that the photosensitive environment of the registration phase and the identification phase are as identical as possible, thereby realizing the biometric matching phase and the biometric registration phase biometrics.
  • the quality of the data is at least similar.
  • the exposure time of the biometric registration stage can also be adjusted by referring to the scheme of the embodiment of FIG. 2 described above.
  • FIG. 3 is a schematic flowchart of a method for detecting biometric data in Embodiment 3 of the present invention; in this embodiment, the exposure time of the biometric registration phase and the biometric matching phase is maintained, that is, the exposure time of the biometric registration phase is equal to the biological
  • the exposure time of the feature matching phase is adjusted by adjusting the ADC gain factor of the biometric matching phase.
  • the method in this embodiment includes:
  • the brightness of the light source is set to a fixed value in the biometric registration phase and the biometric matching phase, and both are maximum values.
  • gain1 represents the first ADC gain coefficient
  • gain2 represents the second ADC gain coefficient
  • ⁇ represents the filter coefficient. Indicates the external light environment change factor.
  • the second ADC gain coefficient gain2 is inversely proportional to the second light intensity n 2 , and the second light intensity corresponds to the biometric matching phase, and the light intensity of the external environment in the biometric matching phase is higher.
  • the second ADC gain coefficient gain2 is smaller; at the same time, the second ADC gain coefficient gain2 is proportional to the first ADC gain coefficient gain1, the larger the first ADC gain coefficient gain1, the larger the second ADC gain coefficient gain2 .
  • the adjusting of the second ADC gain coefficient and correspondingly controlling the sensing unit sensitization may cause the biometric matching phase to be at least similar to the quality of the biometric data of the biometric registration phase.
  • the exposure time of the biometric registration stage can also be adjusted by referring to the scheme of the embodiment of FIG. 3 described above.
  • FIG. 4 is a schematic structural diagram of a biometric device according to a fourth embodiment of the present invention.
  • FIG. 4 includes: a biometric detecting device 401 and a biometric detecting driving unit 402, wherein the biometric detecting driving unit 402 is configured to perform biometrics according to Determining the first lighting environment parameter of the external environment in the registration phase and the second lighting environment parameter of the external environment in the biometric matching phase, determining the outside of the biometrics detecting device 401 in the biometric matching phase relative to the biometric registration phase a light environment change factor, and adjusting a quality influence factor of the biometric data of the biometric matching stage according to an ambient light environment change factor of the biometric matching stage relative to the biometric registration stage, and driving the biometric detecting device
  • the biometric matching phase performs biometric data detection.
  • the adjustment of the quality impact factor of the biometric data may cause the biometric detecting device 401 to be at least similar in quality to the biometric data detected during the biometric matching phase and the biometric registration phase.
  • the biometric detection driving unit 402 is further configured to: according to the first external illumination environment light intensity of the external environment and the external environment of the biometric matching stage according to the biometric registration period Determining an ambient light environment change factor of the biometric feature matching phase relative to the biometric feature registration phase, the first ambient light ambient light intensity as the first illumination environment parameter, the first The ambient light intensity of the external illumination is used as the second illumination environment parameter.
  • the biometric detection driving unit 402 is further configured to adjust biometrics according to an ambient light environment change factor of the biometric matching phase relative to the biometric registration phase.
  • the light source of the detection device is in the biometric matching stage The light is strong.
  • the biometric detection driving unit 402 is further configured to: according to the external illumination environment change factor of the biometric matching stage relative to the biometric registration stage, and the light source At a first intensity of the biometric registration phase, a second intensity of the source at the biometric registration phase is determined. Specifically, the biometric detection driving unit 402 is further configured to determine a second light intensity of the light source at a biometric registration stage by controlling a driving signal of the light source.
  • the biometric detection driving unit 402 is further configured to: according to the external illumination environment change factor of the biometric matching stage relative to the biometric registration stage, and the sensing The working parameters of the unit in the biometric registration phase are adjusted for the operating parameters of the sensing unit in the biometric matching phase.
  • the biometric detection driving unit 402 is further configured to: according to the external illumination environment change factor of the biometric matching stage relative to the biometric registration stage, and the sensing The unit adjusts a second exposure time of the sensing unit during the biometric matching phase at a first exposure time of the biometric registration phase.
  • the biometric detection driving unit 402 is further configured to: according to the external illumination environment change factor of the biometric matching stage relative to the biometric registration stage Determining, by the sensing unit, a first ADC gain coefficient in the biometric registration phase, and adjusting a second ADC gain coefficient of the sensing unit in the biometric matching phase.
  • FIG. 5 is a schematic diagram of an application of the biometric device in the fifth embodiment of the present invention.
  • the light source in the biometric device sharing the organic light emitting diode in the display screen of the organic light emitting diode is taken as an example for description.
  • the biometric detection driving unit 501 drives the biometric detecting device 502 to acquire the first light intensity s1 of the organic light emitting diode display 503 and the light sensor while acquiring the fingerprint feature image in advance.
  • the first ambient light ambient light intensity n1 sensed and transmitted to the light sensor driving unit 505.
  • the light of the external environment may have changed, and the light sensor can obtain the light intensity n2 of the second external illumination environment of the current external environment, and the light sensor is driven.
  • the unit 505 can obtain the second ambient light ambient light intensity n2 of the current external environment and report it to the middleware layer.
  • the biometric detection driving unit 501 acquires the second external illumination environment light intensity through the middleware layer 506. N2, after acquiring the second ambient light ambient light intensity n2, the biometric detection driving unit 501 determines the second light intensity according to the first light intensity s1, the first ambient light ambient light intensity n1, and the second ambient light ambient light intensity n2.
  • the organic light emitting diode display driving unit 507 drives the organic light emitting diode according to the second light intensity, and drives the biometric detecting device to perform biometrics data detection in the biometric matching stage.
  • the organic light emitting diode display driving unit 507 drives the organic light emitting diode according to the second light intensity, and drives the biometric detecting device to perform biometrics data detection in the biometric matching stage.
  • FIG. 6 is a schematic diagram of an application of the biometric device in the sixth embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an application of the biometric device in the sixth embodiment of the present invention; as shown in FIG. 6, in the embodiment,
  • the light source in the biometric identification device shares the organic light emitting diode in the OLED display 503 as an example.
  • the biometrics detection driving unit 501 drives the biometrics detecting device 502 to notify the organic light emitting diode display driving unit 507 to set the light intensity when the fingerprint feature image is acquired in advance. For maximum brightness; and the first ambient light ambient light intensity n1 is read by the light unit sensor drive 505.
  • the light sensor 504 acquires the second ambient light ambient light intensity n2 of the current external environment, and the corresponding light sensor driving unit 505 reads the second external light ambient light intensity n2; similarly, the biological feature detection
  • the driving unit 501 acquires the second ambient light ambient light intensity n2 by the light sensor driving unit 505, and the biological feature detecting driving unit 501 is configured according to the first ambient light ambient light intensity n1, the second external light ambient light intensity n2, and the biometric registration stage.
  • the operational parameters determine operational parameters of the biometric matching phase and drive the biometric detection device to perform biometric data detection during the biometric matching phase. For details, please refer to the description of the second embodiment and the third embodiment.
  • FIG. 7 is a schematic structural diagram of an electronic terminal according to Embodiment 7 of the present invention.
  • the light sensor 701 includes the biometric identification device 702 in any one of the above embodiments, and the light sensor 701 is used to determine respectively.
  • the biometric identification device 702 is in the first illumination environment parameter of the external environment during the biometric registration phase and the second illumination environment parameter of the external environment in the biometric matching phase.
  • the light sensor 701 may specifically include a light sensor. The related description of FIG. 5 or FIG. 6 above.
  • the electronic device in this embodiment may exist in various forms, including but not limited to:
  • Mobile communication devices These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication.
  • Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.
  • Ultra-mobile personal computer equipment This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access.
  • Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.
  • Portable entertainment devices These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.
  • the server consists of a processor 710, a hard disk, a memory, a system bus, etc.
  • the server is similar to a general-purpose computer architecture, but is capable of processing and is stable due to the need to provide highly reliable services. Sex, reliability, security, scalability, manageability, etc. are highly demanding.
  • the sensing unit 722 in the biometric device 702 is disposed under the optical filter 703, and an organic light emitting diode as a light source 712 is disposed above the optical filter 703, and the light emitted by the organic light emitting diode is received by the finger 700. After being reflected, it is processed by the optical filter 703 and then sensed by the sensing unit 722 to generate a fingerprint feature image.
  • the device embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, ie may be located A place, or it can be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.
  • a machine-readable medium includes read only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash storage media, electrical, optical, acoustic, or other forms of propagation signals (eg, carrier waves) , an infrared signal, a digital signal, etc., etc., the computer software product comprising instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the various embodiments or portions of the embodiments described Methods.
  • ROM read only memory
  • RAM random access memory
  • magnetic disk storage media e.g., magnetic disks, magnetic disk storage media, optical storage media, flash storage media, electrical, optical, acoustic, or other forms of propagation signals (eg, carrier waves) , an infrared signal, a digital signal, etc., etc.
  • the computer software product comprising instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the various embodiments or portions of the embodiment
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明实施例提供一种生物特征数据的检测方法、生物特征识别装置和电子终端，所述方法包括：根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并在所述生物特征匹配阶段检测所述生物特征数据，从而避免了生物特征识别注册阶段和生物特征注册阶段形成生物特征数据的环境不同导致的指纹特征识别效果较差，提高了生物特征识别的性能。

Description

生物特征数据的检测方法、生物特征识别装置和电子终端 技术领域
本发明实施例涉及信息安全领域，尤其涉及一种生物特征数据的检测方法、生物特征识别装置和电子终端。
背景技术
随着移动终端引入指纹特征识别技术，指纹认证代替了传统的密码认证、手势动作认证等，使得认证不再需要其他操作，只需要手指与传感器接触即可，在保证移动终端安全的同时，极大的增加了移动终端使用的便利性，从而使得指纹特征识别功能成了移动终端甚至是传统的电子产品的标配。
现有技术中，上述指纹特征识别技术在移动终端产品甚至是传统的电子产品通常集成在产品的正面Home按键处，或者在产品的背面增加单独的指纹特征识别按键，在使用的过程中，通过按压正面的Home按键或者背面的指纹特征识别按键实现指纹特征检测功能。
而在上述指纹特征识别功能的实现通常包括两个阶段：指纹特征注册阶段以及指纹特征匹配阶段，在指纹特征识别注册阶段预先采集指纹特征数据，在指纹特征匹配阶段实时采集指纹特征数据并与预先采集的指纹特征数据进行比对，从而完成合法性认证。
但是，由于在指纹特征识别注册阶段和指纹特征注册阶段形成指纹特征数据的环境往往不同，对于以光线反射原理实现的指纹特征识别为例，指纹特征注册阶段和指纹特征匹配阶段的外界光照环境不同从而导致指纹特征匹配阶段的感光环境存在差异，进而导致指纹特征匹配阶段的指纹特征识别效果较差。
发明内容
本发明实施例的目的在于提供一种生物特征数据的检测方法、生物特征识别装置及电子终端，用以至少解决现有技术中的上述问题。
为实现本发明实施例的目的，本发明实施例提供了一种生物特征数据 的检测方法，其包括：
根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；
根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并在所述生物特征匹配阶段检测所述生物特征数据。
本发明实施例还提供一种生物特征识别装置，其包括：生物特征检测装置以及生物特征检测驱动单元，所述生物特征检测驱动单元用于根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征检测装置在所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，以及根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测。
本发明实施例还提供一种电子终端，其包括：光线传感器和如上所述的生物特征识别装置，所述光线传感器用于分别确定所述生物特征识别装置在所述生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数。
本发明实施例中，通过根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测，从而避免了生物特征识别注册阶段和生物特征注册阶段形成生物特征数据的环境不同导致的生物特征识别效果较差，提高了生物特征识别的性能。
附图说明
图1为本发明实施例一中生物特征数据的检测方法的流程示意图；
图2为本发明实施例二中生物特征数据的检测方法的流程示意图；
图3为本发明实施例三中生物特征数据的检测方法的流程示意图；
图4为本发明实施例四中生物特征识别装置的结构示意图；
图5为本发明实施例五中生物特征识别装置工作的应用示意图；
图6为本发明实施例六中生物特征识别装置工作的应用示意图；
图7为本发明实施例七中电子终端的结构示意图；
图8为本发明实施例八中生物特征识别装置的应用示意图；
图9为本发明实施例中生物特征识别装置在电子终端上的具体应用示意图。
具体实施方式
以下将配合图式及实施例来详细说明本申请的实施方式，藉此对本申请如何应用技术手段来解决技术问题并达成技术功效的实现过程能充分理解并据以实施。
本发明下述实施例中，通过根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，再根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测，从而避免了生物特征识别注册阶段和生物特征注册阶段形成生物特征数据的环境不同导致的生物特征识别效果较差，提高了生物特征识别的性能。
本发明实施例提供的生物特征数据的检测方法，可以应用在具有生物特征检测功能的电子终端，比如智能手机、平板电脑等移动终端，其中所述生物特征可以包括但不限于指纹、心率、血氧浓度等。所述电子终端可以通过生物特征识别装置来检测上述生物特征；以指纹为例，所述电子终端可以包括指纹特征识别装置。
请参阅图9，其为本发明实施例中生物特征识别装置在电子终端上的具体应用示意图。本实施例中，生物特征识别装置以指纹特征识别装置为例。
作为一种实现方式，请参阅图9，所述指纹特征识别装置的有效指纹检测范围A、B可以覆盖所述电子终端900的显示屏901的至少部分显示区域，用户通过手指700按压所述显示屏901的相应区域A或B时所述指纹特征识别装置便可以对用户进行指纹特征检测，从而实现屏内指纹检测功能。例如，所述显示屏可以为OLED显示屏，所述指纹特征识别装置可以为光学指纹识别装置，其可以通过设置在显示屏下(Under display)的结构或者集成到显示屏内(In display)的结构来实现，比如，所述指纹特征识别装置可以采用一个独立功能部件并直接设置在显示屏的显示区域下方，所述指纹特征检测装置也可以集成复用显示屏的部分功能，比如采用OLED显示屏的OLED像素单元作为光源(即OLED光源)等。
另外，如图9所示，所述电子终端900包括光线传感器701，所述光线传感器701可以设置在所述显示屏901的显示区域的外围，比如设置在所述电子终端900的顶部边缘，用于对外部环境光强进行检测。可替代地，所述光线传感器701也可以集成设置在所述显示屏901的显示区域内部，比如，当所述电子终端900采用光学指纹识别装置来实现上述屏内指纹检测功能时，所述光线传感器701可以集成在所述指纹特征识别装置的内部，例如利用所述指纹特征识别装置的其中部分指纹感应单元来实现光强检测，或者在指纹感应单元阵列外围独立设置一个光线感应单元来实现光强检测。
应当理解，上述例子仅是以指纹特征识别装置作为例子来说明，当应用在其他生物特征检测时，生物特征识别装置也可以采用类似的结构来实现相应的屏内生物特征检测。另外，有效指纹检测范围的数量和具体是指位置可以根据用户偏好进行自定义。
图1为本发明实施例一中生物特征数据的检测方法的流程示意图；本实施例中，生物特征数据的质量可以理解为生物特征数据的好坏，比如如果是基于图像的话，可以是图像的清晰度、噪声等，生物特征数据的质量影响因子可以理解为任何可能影响生物特征数据的好坏的因素，比如，基于图像的话，可以图像形成的光照环境、采集图像的工作参数等，如图1所示，本实施例中的方法包括：
S101、根据生物特征注册阶段外界环境的第一外界光照环境光强以及 生物特征匹配阶段的外界环境的第二外界光照环境光强，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；
本实施例中，在生物特征注册阶段预先采集指纹特征数据，用于与生物特征匹配阶段实时采集的指纹特征数据进行比对，从而进行合法性认证。
本实施例中，生物特征可以为指纹特征。以指纹特征识别通过光学反射原理实现为例进行说明，实现指纹特征识别的指纹传感器可以包括光源以及感应单元，光源发出的光线被手指或者其他对象遮挡后反射至感应单元被感应单元接收，根据感应单元接收到光线生成指纹特征数据，该指纹特征数据具体为指纹特征图像。需要说明的是，本实施例中指纹传感器的光源独立于显示屏的光源，还可以是共用显示屏中的光源比如有机发光二极管(Organic Light-Emitting Diode，简称OLED)显示屏中的有机发光二极管OLED，详细不再附图说明。
本实施例中，具体可以通过光线传感器来确定生物特征注册阶段外界环境的第一外界光照环境光强(用n1表示)以及生物特征匹配阶段的外界环境的第二外界光照环境光强(用n2表示)。所述光线传感器可以是电子终端上已有的光线传感器，还可以是为了实现本实施例的目的，额外增加的光线传感器。
S102、根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整在所述生物特征匹配阶段影响指纹特征数据质量的光强，并在所述生物特征匹配阶段检测所述生物特征数据。
其中，所述光强的调整可以使得所述生物特征匹配阶段与所述生物特征注册阶段的生物特征数据的质量至少相近。
本实施例中，步骤S102中在调整生物特征检测装置的光源在生物特征匹配阶段的光强时，可以根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及光源在所述生物特征注册阶段的第一光强(用s1表示)，调整所述光源在生物特征匹配阶段的第二光强(用s2表示)。本实施例中，生物特征数据的质量具体可以为指纹特征图像的清晰度。但是，需要说明的是，生物特征数据的质量并不局限于指纹特征图像的清晰度，比如还可以是图像的噪声等。
具体地，如前所述，可以通过对生物特征注册阶段施加给光源的驱动信号进行分析第一光强s1得到。类似地，当得知第二光强，可以通过控制 所述光源的驱动信号以使得所述光源在生物特征注册阶段的达到第二光强。
在此结合具体示例进行说明：
Figure PCTCN2017081384-appb-000001
公式(1)中，n1表示第一外界光照环境光强，n2表示第二外界光照环境光强，s1表示第一光强，s2表示第二光强，
Figure PCTCN2017081384-appb-000002
表示外界光照环境变化因子，α表示过滤系数，过滤系数反映对除了光源之外的干扰光进行滤光处理的程度。
本实施例中，具体以光强变化作为外界光照环境变化因子，但是，需要说明的是，只要可反映出生物特征注册阶段和生物特征匹配阶段变化程度的指标均可，并不局限于光强。
由上述公式(1)可见，第二光强与第二外界光照环境光强成反比关系，第二外界光照环境光强越大，第二光强越小，反之第二光强越小；第二光强与第一光强成正比关系，第一光强越大，第二光强越大，反之第二光强越小。
在根据上述公式(1)确定出第二光强s2后，对应的调整光源的驱动信号，使得光源发出的光达到第二光强s2，从而使得在指纹特征注册阶段和指纹特征匹配阶段的感光环境尽可能的相似甚至是相同，从而使得所述生物特征匹配阶段与所述生物特征注册阶段的指纹特征图像在清晰度上至少相近，甚至是相同，比如指纹特征图像的均值相似或者相同，从而保证了指纹特征识别的性能。
除了上述可以通过调整光源光强的方式外，还可以根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的工作参数，调整所述感应单元在所述生物特征匹配阶段的工作参数，从而使得在指纹特征注册阶段和指纹特征匹配阶段的感光环境尽可能的相似甚至是相同，所述工作参数可以是曝光时间和/或ADC增益系数，下述实施例二和实施例三分别以调整曝光时间和ADC增益系数进行示例性说明。
在下述实施例二和实施例三中，与上述实施例不同的是，由于在实施例二和三中调整的并非是光源的光强而是感应单元的工作参数，因此，在所述生物特征匹配阶段和所述生物特征注册阶段，所述光源的亮度设置为最大亮度。但是，需要说明的是，在所述生物特征匹配阶段和所述生物特征注册阶段不一定必须将光源的亮度设置为最大亮度，还可以将光源的亮 度设置为设定亮度，只要可实现在所述生物特征匹配阶段和所述生物特征注册阶段，光源的亮度相同即可。
图2为本发明实施例二中生物特征数据的检测方法的流程示意图；本实施例中，保持生物特征注册阶段和生物特征匹配阶段的ADC增益系数不变，而是调整生物特征匹配阶段的曝光时间。具体如图2所示，本实施例中的方法包括：
S201、根据生物特征注册阶段外界环境的第一外界光照环境光强以及生物特征匹配阶段的外界环境的第二外界光照环境光强，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；
本实施例中，有关步骤S201的具体说明可以参照上述图1实施例，在此不再赘述。但是，需要说明的是，与上述实施例一不同的是，由于本实施例中，在生物特征注册阶段和生物特征匹配阶段光源的亮度设定为固定值，均为最大值，因此，可以不获取生物特征注册阶段和生物特征匹配阶段光源的光强。
S202、根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一曝光时间，调整所述感应单元在所述生物特征匹配阶段的第二曝光时间。
本实施例中，具体如公式(2)所示：
Figure PCTCN2017081384-appb-000003
其中，expo1表示第一曝光时间，expo2表示第二曝光时间，γ表示过滤系数，
Figure PCTCN2017081384-appb-000004
表示外界光照环境变化因子。
本实施例中，由上述公式(2)可见，第二曝光时间expo2与第二光强n2成反比关系，第二光强对应生物特征匹配阶段，生物特征匹配阶段外界环境的光强越大，第二曝光时间expo2越小；与此同时，第一曝光时间expo1成正比关系，第一曝光时间expo1越大，第二曝光时间expo2也越大。
S203、根据所述感应单元在所述生物特征匹配阶段的第二曝光时间控制感应单元感光，并在所述生物特征匹配阶段检测所述生物特征数据。
其中，所述第二曝光时间的调整并相应控制感应单元感光可以使所述生物特征匹配阶段与所述生物特征注册阶段的生物特征数据的质量至少相近。
本实施例中，通过第二曝光时间控制感应单元感光的持续时间，使得注册阶段和识别阶段的感光环境尽可能的相同，从而实现所述生物特征匹配阶段与所述生物特征注册阶段的生物特征数据的质量至少相近。
需要说明的是，如需要调整生物特征注册阶段的曝光时间，还可以参照上述图2实施例的方案，对生物特征注册阶段的曝光时间进行调整。
图3为本发明实施例三中生物特征数据的检测方法的流程示意图；本实施例中，保持生物特征注册阶段和生物特征匹配阶段的曝光时间不变，即生物特征注册阶段的曝光时间等于生物特征匹配阶段的曝光时间，而是调整生物特征匹配阶段的ADC增益系数。具体如图3所示，本实施例中的方法包括：
S301、根据生物特征注册阶段外界环境的第一外界光照环境光强以及生物特征匹配阶段的外界环境的第二外界光照环境光强，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；
本实施例中，有关步骤S301的具体说明可以参照上述图1实施例，在此不再赘述。但是，需要说明的是，本实施例与上述实施例一相同，在生物特征注册阶段和生物特征匹配阶段光源的亮度设定为固定值，均为最大值。
S302、根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一ADC增益系数，调整所述感应单元在所述生物特征匹配阶段的第二ADC增益系数。
本实施例中，具体如公式(3)所示：
Figure PCTCN2017081384-appb-000005
其中，gain1表示第一ADC增益系数，gain2表示第二ADC增益系数，β表示过滤系数，
Figure PCTCN2017081384-appb-000006
表示外界光照环境变化因子。
本实施例中，有上述公式(2)可见，第二ADC增益系数gain2与第二光强n2成反比关系，第二光强对应生物特征匹配阶段，生物特征匹配阶段外界环境的光强越大，第二ADC增益系数gain2越小；与此同时，第二ADC增益系数gain2与第一ADC增益系数gain1成正比关系，第一ADC增益系数gain1越大，第二ADC增益系数gain2也越大。
S303、根据所述生物特征检测装置所包括感应单元在所述生物特征匹配阶段的第二ADC增益系数控制感应单元感光，并在所述生物特征匹配阶段检测所述生物特征数据。
其中，所述第二ADC增益系数的调整并相应控制感应单元感光可以使所述生物特征匹配阶段与所述生物特征注册阶段的生物特征数据的质量至少相近。
需要说明的是，如需要调整生物特征注册阶段的曝光时间，还可以参照上述图3实施例的方案，对生物特征注册阶段的曝光时间进行调整。
图4为本发明实施例四中生物特征识别装置的结构示意图；如图4包括：其包括生物特征检测装置401以及生物特征检测驱动单元402，所述生物特征检测驱动单元402用于根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征检测装置401在所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，以及根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测。
其中，所述生物特征数据的质量影响因子的调整可以使得所述生物特征检测装置401在所述生物特征匹配阶段与所述生物特征注册阶段的检测到的所述生物特征数据的质量至少相近。
可选地，在本发明的任一实施例中，所述生物特征检测驱动单元402进一步用于根据生物特征注册阶段外界环境的第一外界光照环境光强以及生物特征匹配阶段的外界环境的第二外界光照环境光强，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，所述第一外界光照环境光强作为所述第一光照环境参数，所述第二外界光照环境光强作为所述第二光照环境参数。
可选地，在本发明的任一实施例中，所述生物特征检测驱动单元402进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征检测装置的光源在生物特征匹配阶段 的光强。
示例性地，在本发明的任一实施例中，所述生物特征检测驱动单元402进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述光源在所述生物特征注册阶段的第一光强，确定所述光源在生物特征注册阶段的第二光强。具体地，所述生物特征检测驱动单元402进一步用于通过控制所述光源的驱动信号以确定所述光源在生物特征注册阶段的第二光强。
可替代地，在本发明的任一实施例中，所述生物特征检测驱动单元402进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的工作参数，对所述感应单元在所述生物特征匹配阶段的工作参数进行调整。
示例性地，在本发明的任一实施例中，所述生物特征检测驱动单元402进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一曝光时间，调整所述感应单元在所述生物特征匹配阶段的第二曝光时间。
或者，示例性地，在本发明的任一实施例中，所述生物特征检测驱动单元402进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一ADC增益系数，调整所述感应单元在所述生物特征匹配阶段的第二ADC增益系数。
本实施例中的详细说明可参见上述图1或者图2或者图3的记载，在此不再赘述。
图5为本发明实施例五中生物特征识别装置工作的应用示意图；本实施例中，以生物特征识别装置中的光源共用有机发光二极管显示屏幕中的有机发光二极管为例进行说明。
如图5所示，在生物特征注册阶段，生物特征检测驱动单元501驱动生物特征检测装置502在预先采集指纹特征图像的同时，获取有机发光二极管显示屏503的第一光强s1，以及光线传感器504感应到且传输至光线传感器驱动单元505的第一外界光照环境光强n1。
在生物特征匹配的阶段，外界环境的光线可能已经发生变化，光线传感器可以获取当前外界环境的第二外界光照环境光强n2，光线传感器驱动 单元505可以获取当前外界环境的第二外界光照环境光强n2，并将其上报给中间件层；同样的，生物特征检测驱动单元501获取通过中间件层506来获取第二外界光照环境光强n2，在获取到第二外界光照环境光强n2后，生物特征检测驱动单元501根据第一光强s1、第一外界光照环境光强n1、第二外界光照环境光强n2确定第二光强s2，有机发光二极管显示屏驱动单元507根据第二光强对有机发光二极管进行驱动，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测。详细说明请参见上述实施例一的记载。
图6为本发明实施例六中生物特征识别装置工作的应用示意图；图6为本发明实施例六中生物特征识别装置工作的应用示意图；如图6所示，本实施例中，与上述图5实施例相同，以生物特征识别装置中的光源共用有机发光二极管显示屏503中的有机发光二极管为例进行说明。
在生物特征注册的阶段，生物特征检测驱动单元501驱动生物特征检测装置502在预先采集指纹特征图像的同时，生物特征检测驱动单元501通知有机发光二极管显示屏驱动单元507，将屏幕将光强设置为最大亮度；并通过光线单元传感器驱动505读取第一外界光照环境光强n1。
在生物特征匹配的阶段，光线传感器504获取当前外界环境的第二外界光照环境光强n2，其对应的光线传感器驱动单元505读取到第二外界光照环境光强n2；同样的，生物特征检测驱动单元501通过光线传感器驱动单元505获取到第二外界光照环境光强n2，生物特征检测驱动单元501根据第一外界光照环境光强n1、第二外界光照环境光强n2、以及生物特征注册阶段的工作参数确定生物特征匹配阶段的工作参数，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测。详细说明请参见上述实施例二和实施例三的记载。
图7为本发明实施例七中电子终端的结构示意图；如图7所示，其包括光线传感器701、上述任一项实施例中的生物特征识别装置702，所述光线传感器701用于分别确定所述生物特征识别装置702在所述生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数。光线传感器701具体可以包括光线传感器具体请参见 上述图5或图6的相关描述。
本实施例中的电子装置可以多种形式存在，包括但不限于:
(1)移动通信设备:这类设备的特点是具备移动通信功能，并且以提供话音、数据通信为主要目标。这类终端包括:智能手机(例如iPhone)、多媒体手机、功能性手机，以及低端手机等。
(2)超移动个人计算机设备:这类设备属于个人计算机的范畴，有计算和处理功能，一般也具备移动上网特性。这类终端包括:PDA、MID和UMPC设备等，例如iPad。
(3)便携式娱乐设备:这类设备可以显示和播放多媒体内容。该类设备包括:音频、视频播放器(例如iPod)，掌上游戏机，电子书，以及智能玩具和便携式车载导航设备。
(4)服务器:提供计算服务的设备，服务器的构成包括处理器710、硬盘、内存、系统总线等，服务器和通用的计算机架构类似，但是由于需要提供高可靠的服务，因此在处理能力、稳定性、可靠性、安全性、可扩展性、可管理性等方面要求较高。
(5)其他具有数据交互功能的电子装置。
图8为本发明实施例八中生物特征识别装置的应用示意图；如图8所示，本实施例中，以生物特征识别装置702中的光源712共用有机发光二极管显示屏704中的有机发光二极管为例进行说明。如图8所示，生物特征识别装置702中的感应单元722设置在光学滤镜703之下，在光学滤镜703之上设置作为光源712的有机发光二极管，有机发光二极管发出的光线被手指700反射后，穿过光学滤镜703处理后被感应单元722感应，从而生成指纹特征图像。
有关本实施例中生物特征识别装置工作的技术说明可参照上述图4实施例记载，在此不再赘述。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，所述计算机可读记录介质包括用于以计算机(例如计算机)可读的形式存储或传送信息的任何机制。例如，机器可读介质包括只读存储器(ROM)、随机存取存储器(RAM)、磁盘存储介质、光存储介质、闪速存储介质、电、光、声或其他形式的传播信号(例如，载波、红外信号、数字信号等)等，该计算机软件产品包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
本申请是参照根据本申请实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和 修改。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (19)

  1. 一种生物特征数据的检测方法，其特征在于，包括：
    根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子；
    根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子，并在所述生物特征匹配阶段检测所述生物特征数据。
  2. 根据权利要求1所述的方法，其特征在于，根据生物特征注册阶段的第一光照环境参数以及生物特征匹配阶段的第二光照环境参数，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子包括：
    根据生物特征注册阶段外界环境的第一外界光照环境光强以及生物特征匹配阶段的外界环境的第二外界光照环境光强，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，所述第一外界光照环境光强作为所述第一光照环境参数，所述第二外界光照环境光强作为所述第二光照环境参数。
  3. 根据权利要求1所述的方法，其特征在于，所述生物特征检测装置包括光源，对应地，根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子包括：
    根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整所述光源在生物特征匹配阶段的光强。
  4. 根据权利要求3所述的方法，其特征在于，根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征检测装置的光源在生物特征匹配阶段的光强包括：
    根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述光源在所述生物特征注册阶段的第一光强，调整所述光源在生物特征匹配阶段的第二光强。
  5. 根据权利要求3所述的方法，其特征在于，所述生物特征检测装置的有效检测范围位于OLED显示屏的至少部分显示区域，且所述光源采用 所述OLED显示屏的OLED像素单元。
  6. 根据权利要求3-5任一项所述的方法，其特征在于，在所述生物特征匹配阶段和所述生物特征注册阶段，所述光源的亮度设置为最大亮度。
  7. 根据权利要求1所述的方法，其特征在于，所述生物特征检测装置包括感应单元，对应地，根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整生物特征匹配阶段生物特征数据的质量影响因子包括：
    根据所述生物特征匹配阶段相对于所述生物特征注册阶段的光照环境变化因子以及所述感应单元在所述生物特征注册阶段的工作参数，调整所述感应单元在所述生物特征匹配阶段的工作参数，所述工作参数包括ADC增益系数和曝光时间中的至少一个。
  8. 根据权利要求7所述的方法，其特征在于，所述ADC增益系数为恒定值，对应地，根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的工作参数，调整所述感应单元在所述生物特征匹配阶段的工作参数包括：
    根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一曝光时间，调整所述感应单元在所述生物特征匹配阶段的第二曝光时间。
  9. 根据权利要求7所述的方法，其特征在于，所述曝光时间为恒定值，对应地，根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的工作参数，调整所述感应单元在所述生物特征匹配阶段的工作参数包括：
    根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一ADC增益系数，调整所述感应单元在所述生物特征匹配阶段的第二ADC增益系数。
  10. 一种生物特征识别装置，其特征在于，包括：生物特征检测装置以及生物特征检测驱动单元，所述生物特征检测驱动单元用于根据生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数，确定所述生物特征检测装置在所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，以及根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子， 调整生物特征匹配阶段生物特征数据的质量影响因子，并且驱动所述生物特征检测装置在所述生物特征匹配阶段进行生物特征数据的检测。
  11. 根据权利要求10所述的生物特征识别装置，其特征在于，所述生物特征检测驱动单元进一步用于根据生物特征注册阶段外界环境的第一外界光照环境光强以及生物特征匹配阶段的外界环境的第二外界光照环境光强，确定所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，所述第一外界光照环境光强作为所述第一光照环境参数，所述第二外界光照环境光强作为所述第二光照环境参数。
  12. 根据权利要求10所述的生物特征识别装置，其特征在于，所述生物特征检测装置包括光源，对应地，所述生物特征检测驱动单元进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子，调整所述生物特征检测装置的光源在生物特征匹配阶段的光强。
  13. 根据权利要求12所述的生物特征识别装置，其特征在于，所述生物特征检测驱动单元进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述光源在所述生物特征注册阶段的第一光强，调整所述光源在生物特征匹配阶段的第二光强。
  14. 根据权利要求12所述的生物特征识别装置，其特征在于，所述生物特征检测装置的有效检测范围位于OLED显示屏的至少部分显示区域，且所述光源复用所述OLED显示屏的OLED像素单元。
  15. 根据权利要求12-14任一项所述的生物特征识别装置，其特征在于，在所述生物特征匹配阶段和所述生物特征注册阶段，所述光源的亮度设置为最大亮度。
  16. 根据权利要求10所述的生物特征识别装置，其特征在于，所述生物特征检测装置包括感应单元，对应地，所述生物特征检测驱动单元进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的工作参数，调整所述感应单元在所述生物特征匹配阶段的工作参数，所述工作参数包括ADC增益系数和曝光时间中的至少一个。
  17. 根据权利要求16所述的生物特征识别装置，其特征在于，所述ADC增益系数为恒定值，对应地，所述生物特征检测驱动单元进一步用于根据 所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一曝光时间，调整所述感应单元在所述生物特征匹配阶段的第二曝光时间。
  18. 根据权利要求16所述的生物特征识别装置，其特征在于，所述曝光时间为恒定值，对应地，所述生物特征检测驱动单元进一步用于根据所述生物特征匹配阶段相对于所述生物特征注册阶段的外界光照环境变化因子以及所述感应单元在所述生物特征注册阶段的第一ADC增益系数，调整所述感应单元在所述生物特征匹配阶段的第二ADC增益系数。
  19. 一种电子终端，其特征在于，包括：光线传感器和如权利要求10-18任一项所述的生物特征识别装置，所述光线传感器用于分别确定所述生物特征识别装置在所述生物特征注册阶段外界环境的第一光照环境参数以及生物特征匹配阶段的外界环境的第二光照环境参数。
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