CN110765813A - Fingerprint identification method and device - Google Patents
Fingerprint identification method and device Download PDFInfo
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- CN110765813A CN110765813A CN201810833079.4A CN201810833079A CN110765813A CN 110765813 A CN110765813 A CN 110765813A CN 201810833079 A CN201810833079 A CN 201810833079A CN 110765813 A CN110765813 A CN 110765813A
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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
- G06V40/13—Sensors therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The disclosure relates to a fingerprint identification method and a fingerprint identification device. The method comprises the following steps: when the screen is detected to be touched by a finger, acquiring position information of a touch point; if the touch point is determined to be located in the fingerprint acquisition area of the screen, acquiring a touch pressure value; if the touch pressure value is larger than the pressure threshold value and the screen brightness does not meet the brightness condition, adjusting the screen brightness to meet the brightness condition, stopping acquiring the touch pressure value after the screen brightness is adjusted, and acquiring a fingerprint image through a fingerprint sensor; and matching the fingerprint image with the fingerprint database to obtain a matching result, and returning the matching result to the application calling the fingerprint function. This disclose after the fingerprint collection area that the user pressed down in the screen hard triggers fingerprint collection, at fingerprint collection's in-process, need not the user and continuously press down fingerprint collection area hard, only need the user to keep pointing at fingerprint collection area, can carry out fingerprint collection and discernment to fingerprint identification process has been optimized.
Description
Technical Field
The present disclosure relates to the field of fingerprint technologies, and in particular, to a fingerprint identification method and apparatus.
Background
The total reflection is a phenomenon that when light is emitted from an optically dense medium to an interface of an optically sparse medium, the light is totally reflected back into the original medium. Among them, a medium having a smaller light velocity in the medium is called an optically denser medium, and a medium having a larger light velocity in the medium is called an optically thinner medium. Two conditions must be satisfied for the total reflection phenomenon to occur, namely, the incident angle is larger than the critical angle, and light is emitted from the optically dense medium into the optically sparse medium.
Diffuse reflection refers to the phenomenon in which light incident on a rough surface is reflected in various directions. When a parallel incident ray strikes a rough surface, the surface reflects the ray in all directions. Although the incident light beams are parallel to each other, the reflected light beams are randomly reflected in different directions due to the non-uniform normal directions of the respective points.
Optical fingerprints exploit the principles of total emission and diffuse reflection. Under the condition that no finger is pressed, light rays are emitted from the light source, the surface of the fingerprint sensor is totally reflected, the totally reflected light rays are emitted into the convex lens, the convex lens is imaged on a Complementary Metal Oxide Semiconductor (CMOS), and the collected image is a blank. When a finger presses the surface of the fingerprint sensor, the fingerprint protrusion part can be contacted with the surface of the fingerprint sensor, so that the diffuse reflection phenomenon is generated. The light entering the convex lens is diffused and reflected with a much lower intensity than the total reflection, so that a fingerprint image with a high contrast ratio and a clear black and white fingerprint image is finally formed. FIG. 1 is a schematic representation of a fingerprint image.
The screen can be self-luminous by means of an OLED (Organic Light-Emitting Diode) and the fingerprint sensor can be placed under the screen. The light source of the OLED is used for irradiating the surface of the screen, and the principles of total reflection and diffuse reflection are utilized to perform fingerprint identification.
In the related art, when a user uses the under-screen fingerprint function, the user needs to continuously press the screen hard, and if the user has loose hands, the user may not trigger fingerprint collection.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a fingerprint identification method and apparatus.
According to a first aspect of the embodiments of the present disclosure, there is provided a fingerprint identification method, including:
when the screen is detected to be touched by a finger, acquiring position information of a touch point;
if the touch point is determined to be located in the fingerprint acquisition area of the screen according to the position information of the touch point, acquiring a touch pressure value through a pressure sensor;
if the touch pressure value is larger than the pressure threshold value and the screen brightness does not meet the brightness condition, adjusting the screen brightness to meet the brightness condition, and stopping obtaining the touch pressure value after the screen brightness is adjusted;
after the screen brightness adjustment is finished, acquiring a fingerprint image through a fingerprint sensor;
and matching the fingerprint image with a fingerprint database to obtain a matching result, and returning the matching result to the application for calling the fingerprint function.
In one possible implementation, after acquiring the touch pressure value through the pressure sensor, before adjusting the screen brightness to satisfy the brightness condition, the method further includes:
reporting a first event through the pressure sensor, wherein the type of the first event is a pressure type, and the numerical value of the first event is the touch pressure value.
In a possible implementation manner, if the touch pressure value is greater than the pressure threshold and the screen brightness does not satisfy the brightness condition, adjusting the screen brightness to satisfy the brightness condition includes:
when the screen locking module detects the first event, generating a brightness adjusting instruction, wherein the brightness adjusting instruction carries the brightness condition;
and if the screen brightness does not meet the brightness condition, adjusting the screen brightness to meet the brightness condition according to the brightness adjusting instruction.
In one possible implementation, after adjusting the screen brightness to satisfy the brightness condition, before acquiring a fingerprint image by a fingerprint sensor, the method further includes:
and sending the brightness adjustment completion information to the fingerprint module through the screen locking module.
In one possible implementation, acquiring a fingerprint image by a fingerprint sensor includes:
and when the fingerprint module detects the first event and receives the brightness adjustment completion information, acquiring a fingerprint image through a fingerprint sensor.
According to a second aspect of the present disclosure, there is provided a fingerprint identification device comprising:
the first acquisition module is used for acquiring the position information of a touch point when the screen is detected to be touched by a finger;
the second acquisition module is used for determining that the touch point is located in the fingerprint acquisition area of the screen according to the position information of the touch point and acquiring a touch pressure value through a pressure sensor;
the adjusting module is used for adjusting the screen brightness to meet the brightness condition if the touch pressure value is larger than the pressure threshold value and the screen brightness does not meet the brightness condition, and stopping obtaining the touch pressure value after the screen brightness is adjusted;
the third acquisition module is used for acquiring a fingerprint image through a fingerprint sensor after the screen brightness adjustment is finished;
and the return module is used for matching the fingerprint image with a fingerprint database to obtain a matching result and returning the matching result to the application calling the fingerprint function.
In one possible implementation, the apparatus further includes:
and a reporting module, configured to report a first event through the pressure sensor, where the type of the first event is a pressure type, and a value of the first event is the touch pressure value.
In one possible implementation, the adjusting module includes:
the generating submodule is used for generating a brightness adjusting instruction when the screen locking module detects the first event, wherein the brightness adjusting instruction carries the brightness condition;
and the adjusting submodule is used for adjusting the screen brightness to meet the brightness condition according to the brightness adjusting instruction if the screen brightness does not meet the brightness condition.
In one possible implementation, the apparatus further includes:
and the sending module is used for sending the brightness adjustment completion information to the fingerprint module through the screen locking module.
In a possible implementation manner, the third obtaining module is configured to:
and when the fingerprint module detects the first event and receives the brightness adjustment completion information, acquiring a fingerprint image through a fingerprint sensor.
According to a third aspect of the embodiments of the present disclosure, there is provided a fingerprint identification device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions which, when executed by a processor, enable the processor to perform the above-described method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when the screen is detected to be touched by a finger, the position information of a touch point is acquired, if the touch point is determined to be positioned in a fingerprint acquisition area of the screen according to the position information of the touch point, a touch pressure value is acquired through a pressure sensor, if the touch pressure value is greater than a pressure threshold value and the screen brightness does not meet a brightness condition, the screen brightness is adjusted to meet the brightness condition, the acquisition of the touch pressure value is stopped after the screen brightness adjustment is finished, a fingerprint image is acquired through the fingerprint sensor after the screen brightness adjustment is finished, the fingerprint image is matched with a fingerprint database to obtain a matching result, and the matching result is returned to an application calling a fingerprint function, so that after a user forcibly presses the fingerprint acquisition area in the screen to trigger fingerprint acquisition, the user does not need to continuously press the fingerprint acquisition area in the fingerprint acquisition process, the fingerprint can be collected and identified only by keeping the finger in the fingerprint collecting area by the user, so that the fingerprint identification process is optimized, and the flexibility of fingerprint identification is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic representation of a fingerprint image.
FIG. 2 is a flow chart illustrating a method of fingerprinting in accordance with an exemplary embodiment.
Fig. 3 is a flowchart illustrating an exemplary method for adjusting the screen brightness to satisfy the brightness condition if the touch pressure value is greater than the pressure threshold value and the screen brightness does not satisfy the brightness condition in step S23 according to an exemplary embodiment.
FIG. 4 illustrates an exemplary flow chart of a method of fingerprinting in accordance with an exemplary embodiment.
FIG. 5 illustrates an exemplary flow chart of a method of fingerprinting in accordance with an exemplary embodiment.
FIG. 6 is a block diagram illustrating a fingerprint recognition device according to an example embodiment.
FIG. 7 is an exemplary block diagram illustrating a fingerprint recognition device according to one exemplary embodiment.
Fig. 8 is a block diagram illustrating an apparatus 800 for fingerprint recognition according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
FIG. 2 is a flow chart illustrating a method of fingerprinting in accordance with an exemplary embodiment. The method can be applied to terminal equipment such as a mobile phone, a tablet personal computer or a smart watch, and is not limited herein. The fingerprint identification of the method can be under-screen fingerprint identification. As shown in fig. 2, the method includes steps S21 through S25.
In step S21, when it is detected that the screen is touched by the finger, position information of the touched point is acquired.
In one possible implementation, the screen may be an OLED screen.
In the present embodiment, the position information of the touch point may represent position information of a finger touching the screen. Wherein the position information of the touch point may include coordinates of the touch point in the screen. The number of touch points may be plural or one, and is not limited herein.
In step S22, if it is determined that the touch point is located in the fingerprint collection area of the screen according to the position information of the touch point, a touch pressure value is obtained by the pressure sensor.
In this embodiment, after detecting that the screen is touched by a finger, the position information of the touched point may be transferred to the pressure sensor. After the pressure sensor receives the position information of the touch point, whether the touch point is located in the fingerprint acquisition area of the screen or not can be judged according to the position information of the touch point.
In step S23, if the touch pressure value is greater than the pressure threshold and the screen brightness does not satisfy the brightness condition, the screen brightness is adjusted to satisfy the brightness condition, and after the screen brightness adjustment is completed, the touch pressure value is stopped being acquired.
In the present embodiment, after the screen brightness is adjusted to satisfy the brightness condition, it is not necessary to continue to acquire the touch pressure value.
In one possible implementation, the brightness condition is system default.
In another possible implementation, the brightness condition may be set by a user.
In step S24, after the screen brightness adjustment is completed, a fingerprint image is acquired by the fingerprint sensor.
In this embodiment, it is not necessary to consider whether the touch pressure value is greater than the pressure threshold value during the fingerprint acquisition process.
In step S25, the fingerprint image is matched with the fingerprint database to obtain a matching result, and the matching result is returned to the application calling the fingerprint function.
In this embodiment, the fingerprint features of the fingerprint image may be extracted, and the fingerprint features of the fingerprint image may be matched with the fingerprint database, to determine whether the fingerprint features of the fingerprint image are consistent with the fingerprint features of the fingerprint database, so as to obtain a matching result.
The application for invoking the fingerprint function may be a system authentication application or a payment application, and is not limited herein.
The fingerprint database may be a fingerprint database in the terminal device.
In the embodiment, when the touch of a finger on a screen is detected, the position information of a touch point is acquired, if the touch point is determined to be located in a fingerprint acquisition area of the screen according to the position information of the touch point, a touch pressure value is acquired through a pressure sensor, if the touch pressure value is greater than a pressure threshold value and the screen brightness does not meet a brightness condition, the screen brightness is adjusted to meet the brightness condition, the acquisition of the touch pressure value is stopped after the screen brightness adjustment is completed, a fingerprint image is acquired through the fingerprint sensor after the screen brightness adjustment is completed, the fingerprint image is matched with a fingerprint database to obtain a matching result, and the matching result is returned to an application calling a fingerprint function, so that after a user forcibly presses the fingerprint acquisition area in the screen to trigger fingerprint acquisition, the user does not need to continuously press the fingerprint acquisition area in the fingerprint acquisition process, the fingerprint can be collected and identified only by keeping the finger in the fingerprint collecting area by the user, so that the fingerprint identification process is optimized, and the flexibility of fingerprint identification is improved.
In one possible implementation, after acquiring the touch pressure value through the pressure sensor, before adjusting the screen brightness to satisfy the brightness condition, the method further includes: reporting a first event through a pressure sensor, wherein the type of the first event is a pressure type, and the numerical value of the first event is a touch pressure value. In this implementation manner, if the pressure sensor determines that the touch point is located in the fingerprint acquisition area of the screen according to the position information of the touch point, the first event may be reported according to the acquired touch pressure value.
It should be noted that the "first" of the first events is only used for convenience of expression and reference, and does not mean that there is necessarily a corresponding first event in the specific implementation manner of the disclosure.
Fig. 3 is a flowchart illustrating an exemplary method for adjusting the screen brightness to satisfy the brightness condition if the touch pressure value is greater than the pressure threshold value and the screen brightness does not satisfy the brightness condition in step S23 according to an exemplary embodiment. As shown in fig. 3, if the touch pressure value is greater than the pressure threshold value and the screen brightness does not satisfy the brightness condition, adjusting the screen brightness to satisfy the brightness condition may include steps S231 and S232.
In step S231, when the screen locking module detects a first event, a brightness adjustment instruction is generated, where the brightness adjustment instruction carries a brightness condition.
In this embodiment, the screen lock module may poll the event node of the pressure sensor. When the screen locking module polls a first event reported by the pressure sensor, the first event can be received. If the screen locking module determines that the type of the first event is the pressure type and the numerical value of the first event is greater than the pressure threshold, a brightness adjusting instruction can be generated and sent to the display module.
In one possible implementation, the brightness condition may be that the screen brightness is greater than a brightness threshold.
In another possible implementation, the brightness condition may be that the screen brightness is a maximum brightness value.
In step S232, if the screen brightness does not satisfy the brightness condition, the screen brightness is adjusted to satisfy the brightness condition according to the brightness adjustment instruction.
In this embodiment, after receiving the brightness adjustment instruction, the display module may determine whether the screen brightness meets a brightness condition corresponding to the brightness adjustment instruction. If the screen brightness does not satisfy the brightness condition, the screen brightness can be adjusted to satisfy the brightness condition.
FIG. 4 illustrates an exemplary flow chart of a method of fingerprinting in accordance with an exemplary embodiment. As shown in fig. 4, the method may include steps S41 through S47.
In step S41, when it is detected that the screen is touched by the finger, position information of the touched point is acquired.
Wherein, for step S41, refer to the description above for step S21.
In step S42, if it is determined that the touch point is located in the fingerprint collection area of the screen according to the position information of the touch point, a touch pressure value is obtained by the pressure sensor.
Wherein, for step S42, refer to the description above for step S22.
In step S43, a first event is reported through the pressure sensor, where the type of the first event is a pressure type, and the value of the first event is a touch pressure value.
In step S44, when the screen locking module detects a first event, a brightness adjustment instruction is generated, where the brightness adjustment instruction carries a brightness condition.
Wherein, for step S44, refer to the description of step S231 above.
In step S45, if the screen brightness does not satisfy the brightness condition, the screen brightness is adjusted to satisfy the brightness condition according to the brightness adjustment instruction, and the touch pressure value is stopped being acquired after the screen brightness adjustment is completed.
Wherein, for step S45, refer to the description above for step S232 and step S23.
In step S46, after the screen brightness adjustment is completed, a fingerprint image is acquired by the fingerprint sensor.
In step S47, the fingerprint image is matched with the fingerprint database to obtain a matching result, and the matching result is returned to the application calling the fingerprint function.
Wherein, for step S47, refer to the description above for step S25.
In one possible implementation, after adjusting the screen brightness to satisfy the brightness condition, before acquiring the fingerprint image by the fingerprint sensor, the method further includes: and sending the brightness adjusting completion information to the fingerprint module through the screen locking module. In the implementation mode, after the screen brightness is adjusted to meet the brightness condition, the brightness adjustment completion information is sent to the fingerprint module through the screen locking module, so that the fingerprint module is informed that the brightness adjustment is completed.
FIG. 5 illustrates an exemplary flow chart of a method of fingerprinting in accordance with an exemplary embodiment. As shown in fig. 5, the method may include steps S51 through S59.
In step S51, when it is detected that the screen is touched by the finger, position information of the touched point is acquired.
Wherein, for step S51, refer to the description above for step S21.
In step S52, if it is determined that the touch point is located in the fingerprint collection area of the screen according to the position information of the touch point, a touch pressure value is obtained by the pressure sensor.
Wherein, for step S52, refer to the description above for step S22.
In step S53, a first event is reported through the pressure sensor, where the type of the first event is a pressure type, and the value of the first event is a touch pressure value.
In step S54, when the screen locking module detects a first event, a brightness adjustment instruction is generated, where the brightness adjustment instruction carries a brightness condition.
Wherein, for step S54, refer to the description of step S231 above.
In step S55, if the screen brightness does not satisfy the brightness condition, the screen brightness is adjusted to satisfy the brightness condition according to the brightness adjustment instruction, and the touch pressure value is stopped being acquired after the screen brightness adjustment is completed.
Wherein, for step S55, refer to the description above for step S232 and step S23.
In step S56, the brightness adjustment completion message is sent to the fingerprint module through the screen locking module.
In step S57, when the fingerprint module detects the first event and receives the brightness adjustment completion information, a fingerprint image is acquired by the fingerprint sensor.
In this embodiment, when the fingerprint module detects a first event, if it is determined that the type of the first event is a pressure type, the value of the first event is greater than a pressure threshold, and the brightness adjustment completion information is received, the fingerprint acquisition process may be triggered.
In step S58, the fingerprint image is matched with the fingerprint database to obtain a matching result, and the matching result is returned to the application calling the fingerprint function.
Wherein, for step S58, refer to the description above for step S25.
FIG. 6 is a block diagram illustrating a fingerprint recognition device according to an example embodiment. Referring to fig. 6, the apparatus includes a first obtaining module 61, a second obtaining module 62, an adjusting module 63, a third obtaining module 64, and a returning module 65.
The first acquiring module 61 is configured to acquire position information of a touch point when detecting that the screen is touched by a finger.
The second obtaining module 62 is configured to determine that the touch point is located in the fingerprint collection area of the screen according to the position information of the touch point, and obtain the touch pressure value through the pressure sensor.
The adjusting module 63 is configured to adjust the screen brightness to meet the brightness condition if the touch pressure value is greater than the pressure threshold and the screen brightness does not meet the brightness condition, and stop acquiring the touch pressure value after the screen brightness adjustment is completed.
The third acquiring module 64 is configured to acquire a fingerprint image through the fingerprint sensor after the screen brightness adjustment is completed.
The return module 65 is configured to match the fingerprint image with a fingerprint database, obtain a matching result, and return the matching result to the application invoking the fingerprint function.
FIG. 7 is an exemplary block diagram illustrating a fingerprint recognition device according to one exemplary embodiment. As shown in fig. 7:
in a possible implementation manner, the apparatus further includes a reporting module 66.
The reporting module 66 is configured to report a first event through the pressure sensor, where the type of the first event is a pressure type, and the value of the first event is a touch pressure value.
In one possible implementation, the adjustment module 63 includes a generation submodule 631 and an adjustment submodule 632.
The generating sub-module 631 is configured to generate a brightness adjusting instruction when the screen locking module detects a first event, wherein the brightness adjusting instruction carries a brightness condition.
The adjusting sub-module 632 is configured to adjust the screen brightness to satisfy the brightness condition according to the brightness adjusting instruction if the screen brightness does not satisfy the brightness condition.
In one possible implementation, the apparatus further includes a sending module 67.
The sending module 67 is configured to send the brightness adjustment completion message to the fingerprint module through the screen locking module.
In one possible implementation, the third obtaining module 64 is configured to obtain the fingerprint image through the fingerprint sensor when the fingerprint module detects the first event and receives the brightness adjustment completion information.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In the embodiment, when the touch of a finger on a screen is detected, the position information of a touch point is acquired, if the touch point is determined to be located in a fingerprint acquisition area of the screen according to the position information of the touch point, a touch pressure value is acquired through a pressure sensor, if the touch pressure value is greater than a pressure threshold value and the screen brightness does not meet a brightness condition, the screen brightness is adjusted to meet the brightness condition, the acquisition of the touch pressure value is stopped after the screen brightness adjustment is completed, a fingerprint image is acquired through the fingerprint sensor after the screen brightness adjustment is completed, the fingerprint image is matched with a fingerprint database to obtain a matching result, and the matching result is returned to an application calling a fingerprint function, so that after a user forcibly presses the fingerprint acquisition area in the screen to trigger fingerprint acquisition, the user does not need to continuously press the fingerprint acquisition area in the fingerprint acquisition process, the fingerprint can be collected and identified only by keeping the finger in the fingerprint collecting area by the user, so that the fingerprint identification process is optimized, and the flexibility of fingerprint identification is improved.
Fig. 8 is a block diagram illustrating an apparatus 800 for fingerprint recognition according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 8, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A fingerprint identification method, comprising:
when the screen is detected to be touched by a finger, acquiring position information of a touch point;
if the touch point is determined to be located in the fingerprint acquisition area of the screen according to the position information of the touch point, acquiring a touch pressure value through a pressure sensor;
if the touch pressure value is larger than the pressure threshold value and the screen brightness does not meet the brightness condition, adjusting the screen brightness to meet the brightness condition, and stopping obtaining the touch pressure value after the screen brightness is adjusted;
after the screen brightness adjustment is finished, acquiring a fingerprint image through a fingerprint sensor;
and matching the fingerprint image with a fingerprint database to obtain a matching result, and returning the matching result to the application for calling the fingerprint function.
2. The method of claim 1, wherein after acquiring a touch pressure value by a pressure sensor, before adjusting the screen brightness to satisfy the brightness condition, the method further comprises:
reporting a first event through the pressure sensor, wherein the type of the first event is a pressure type, and the numerical value of the first event is the touch pressure value.
3. The method of claim 2, wherein if the touch pressure value is greater than a pressure threshold value and the screen brightness does not satisfy a brightness condition, adjusting the screen brightness to satisfy the brightness condition comprises:
when the screen locking module detects the first event, generating a brightness adjusting instruction, wherein the brightness adjusting instruction carries the brightness condition;
and if the screen brightness does not meet the brightness condition, adjusting the screen brightness to meet the brightness condition according to the brightness adjusting instruction.
4. The method of claim 3, wherein after adjusting the screen brightness to satisfy the brightness condition, prior to acquiring a fingerprint image by a fingerprint sensor, the method further comprises:
and sending the brightness adjustment completion information to the fingerprint module through the screen locking module.
5. The method of claim 4, wherein acquiring the fingerprint image with the fingerprint sensor comprises:
and when the fingerprint module detects the first event and receives the brightness adjustment completion information, acquiring a fingerprint image through a fingerprint sensor.
6. A fingerprint recognition device, comprising:
the first acquisition module is used for acquiring the position information of a touch point when the screen is detected to be touched by a finger;
the second acquisition module is used for determining that the touch point is located in the fingerprint acquisition area of the screen according to the position information of the touch point and acquiring a touch pressure value through a pressure sensor;
the adjusting module is used for adjusting the screen brightness to meet the brightness condition if the touch pressure value is larger than the pressure threshold value and the screen brightness does not meet the brightness condition, and stopping obtaining the touch pressure value after the screen brightness is adjusted;
the third acquisition module is used for acquiring a fingerprint image through a fingerprint sensor after the screen brightness adjustment is finished;
and the return module is used for matching the fingerprint image with a fingerprint database to obtain a matching result and returning the matching result to the application calling the fingerprint function.
7. The apparatus of claim 6, further comprising:
and a reporting module, configured to report a first event through the pressure sensor, where the type of the first event is a pressure type, and a value of the first event is the touch pressure value.
8. The apparatus of claim 7, wherein the adjustment module comprises:
the generating submodule is used for generating a brightness adjusting instruction when the screen locking module detects the first event, wherein the brightness adjusting instruction carries the brightness condition;
and the adjusting submodule is used for adjusting the screen brightness to meet the brightness condition according to the brightness adjusting instruction if the screen brightness does not meet the brightness condition.
9. The apparatus of claim 8, further comprising:
and the sending module is used for sending the brightness adjustment completion information to the fingerprint module through the screen locking module.
10. The apparatus of claim 9, wherein the third obtaining module is configured to:
and when the fingerprint module detects the first event and receives the brightness adjustment completion information, acquiring a fingerprint image through a fingerprint sensor.
11. A fingerprint recognition device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1 to 5.
12. A non-transitory computer readable storage medium having instructions therein which, when executed by a processor, enable the processor to perform the method of any one of claims 1 to 5.
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