CN109241954A - Fingerprint identification method and relevant device - Google Patents
Fingerprint identification method and relevant device Download PDFInfo
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- CN109241954A CN109241954A CN201811326078.7A CN201811326078A CN109241954A CN 109241954 A CN109241954 A CN 109241954A CN 201811326078 A CN201811326078 A CN 201811326078A CN 109241954 A CN109241954 A CN 109241954A
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- fingerprint
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- collecting region
- brightness
- processor
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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
Abstract
This application discloses a kind of fingerprint identification method and relevant devices, applied to the mobile terminal for including touch screen, processor and fingerprint sensor, touch screen includes fingerprint collecting region, fingerprint sensor is set to below fingerprint collecting region, method includes: when detecting touch control operation of the finger prick to fingerprint collecting region, and processor determines the center touch point in finger touch fingerprint collecting region；The signal of fingerprint sensor acquisition first area is controlled, to obtain the first fingerprint image of finger, the center of first area is center touch point；In the case where the brightness of mobile terminal current environment is greater than or equal to predetermined luminance, cut the first fingerprint image, the second fingerprint image is obtained, the central point of the second fingerprint image is identical as the central point of the first fingerprint image, the area of the area of the second fingerprint image less than the first fingerprint image；Fingerprint recognition operation is carried out based on the second fingerprint image.Fingerprint recognition rate can be promoted using the embodiment of the present application.
Description
Technical field
This application involves electronic technology field more particularly to a kind of fingerprint identification methods and relevant device.
Background technique
Shielding lower fingerprint collecting principle is that the finger being placed on touch screen is irradiated using the light of touch screen sending, touch screen hair
Light out reflects when reaching finger, and the optical signal that the fingerprint sensor below touch screen receives reflection is arranged in, due to
The rough lines of fingerprint, light absorption amplitude is different, to obtain the different fingerprint image of light and shade.Under strong laser field scape,
Since extraneous infrared light and feux rouges are too strong, finger can be penetrated and influence collected fingerprint image, and then influence subsequent fingerprint
Identification.
Summary of the invention
The embodiment of the present application provides a kind of fingerprint identification method and relevant device, for promoting fingerprint recognition rate.
In a first aspect, the embodiment of the present application provides a kind of fingerprint identification method, applied to including touch screen, processor and refer to
The mobile terminal of line sensor, the touch screen include fingerprint collecting region, and the fingerprint sensor is set to the fingerprint collecting
Below region, comprising:
When detecting touch control operation of the finger prick to the fingerprint collecting region, the processor determines the finger touching
Control the center touch point in the fingerprint collecting region；
The processor controls the signal of fingerprint sensor acquisition first area, refers to obtain the finger first
Print image, the center of the first area are the center touch point, and the area of the first area is the first preset area；
In the case where the brightness of the mobile terminal current environment is greater than or equal to predetermined luminance, the processing
Device cuts first fingerprint image, obtains the second fingerprint image, and the central point of second fingerprint image and described first refer to
The central point of print image is identical, and the area of second fingerprint image is the second preset area, and second preset area is less than
First preset area；
The processor is based on second fingerprint image and carries out fingerprint recognition operation.
Second aspect, the embodiment of the present application provide a kind of fingerprint identification device, are applied to include touch screen and fingerprint sensing
The mobile terminal of device, the touch screen include fingerprint collecting region, and the fingerprint sensor is set under the fingerprint collecting region
Side, described device include:
Determination unit, for determining the hand when detecting touch control operation of the finger prick to the fingerprint collecting region
Refer to the center touch point in fingerprint collecting region described in touch-control；
Acquisition unit, for controlling the signal of fingerprint sensor acquisition first area, to obtain the of the finger
One fingerprint image, the center of the first area are the center touch point, and the area of the first area is the first default face
Product；
Cutter unit is greater than or equal to the feelings of predetermined luminance for the brightness in the mobile terminal current environment
Under condition, first fingerprint image is cut, the second fingerprint image, the central point of second fingerprint image and described first are obtained
The central point of fingerprint image is identical, and the area of second fingerprint image is the second preset area, and second preset area is small
In first preset area；
Recognition unit, for carrying out fingerprint recognition operation based on second fingerprint image.
The third aspect, the embodiment of the present application provide a kind of mobile terminal, including processor, memory, communication interface and
One or more programs, wherein said one or multiple programs are stored in above-mentioned memory, and are configured by above-mentioned
It manages device to execute, above procedure is included the steps that for executing the instruction in method described in the embodiment of the present application first aspect.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, wherein above-mentioned computer-readable
Storage medium storage is used for the computer program of electronic data interchange, wherein above-mentioned computer program executes computer such as
Step some or all of described in method described in the embodiment of the present application first aspect.
5th aspect, the embodiment of the present application provide a kind of computer program product, wherein above-mentioned computer program product
Non-transient computer readable storage medium including storing computer program, above-mentioned computer program are operable to make to calculate
Step some or all of described in method of the machine execution as described in the embodiment of the present application first aspect.The computer program produces
Product can be a software installation packet.
As can be seen that in the embodiment of the present application, first control fingerprint sensor and acquire signal, obtain the first fingerprint image,
If mobile terminal is currently under strong light environment, the first fingerprint image is cut, the second fingerprint image is obtained, is based on the second fingerprint
Image carries out fingerprint recognition, and the center of the second fingerprint image is identical as the center of the first fingerprint image, the face of the second fingerprint image
Area of the product less than the first fingerprint image.As it can be seen that be easier to penetrate since the meat at finger edge is relatively thin under strong light environment, with
And the oblique fire of other angular lights comes, and is affected to fingerprint image, in that case, by the edge of collected fingerprint image
Remove, then carry out fingerprint recognition, and then improves the quality of the fingerprint image for fingerprint recognition, and then improve fingerprint recognition
Rate.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of mobile terminal provided by the embodiments of the present application；
Fig. 2 a is a kind of flow diagram of fingerprint collecting method provided by the embodiments of the present application；
Fig. 2 b is the relation schematic diagram of a kind of first fingerprint image and the second fingerprint image provided by the embodiments of the present application；
Fig. 3 is the flow diagram of another fingerprint collecting method provided by the embodiments of the present application；
Fig. 4 is a kind of structural schematic diagram of mobile terminal provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of fingerprint acquisition device provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It is described in detail separately below.
The description and claims of this application and term " first ", " second ", " third " and " in the attached drawing
Four " etc. are not use to describe a particular order for distinguishing different objects.In addition, term " includes " and " having " and it
Any deformation, it is intended that cover and non-exclusive include.Such as it contains the process, method of a series of steps or units, be
System, product or equipment are not limited to listed step or unit, but optionally further comprising the step of not listing or list
Member, or optionally further comprising other step or units intrinsic for these process, methods, product or equipment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Mobile terminal may include the various handheld devices with wireless communication function, mobile unit, wearable device, meter
Calculate equipment or be connected to radio modem other processing equipments and various forms of user equipment (User
Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal device) etc..
Referring to Figure 1, Fig. 1 is a kind of structural schematic diagram of mobile terminal provided by the embodiments of the present application, the mobile terminal
Including processor, memory, signal processor, communication interface, touch screen, loudspeaker, microphone, random access memory
(Random Access Memory, RAM), camera and sensor etc..
Wherein, processor is also possible to AP processor, is also possible to other processors.
Wherein, memory, signal processor, touch screen, loudspeaker, microphone, RAM, camera and sensor and processing
Device connection, communication interface are connect with signal processor.
Wherein, touch screen includes display screen and touch panel (Touch Panel, TP), and touch screen includes fingerprint collecting area
Domain.The fingerprint collecting region is the panel region in touch screen, i.e., size can for multiple fingers simultaneously press big region, and
The non-zonule that can be only pressed for single finger.Position where the fingerprint collecting region can be the middle area of touch screen
Domain, the upper partial region of touch screen, lower partial region of touch screen etc., are not limited thereto.
Wherein, sensor includes fingerprint sensor, infrared sensor, gyroscope etc..The fingerprint sensor is adopted set on fingerprint
Collect the lower section in region, which is optical fingerprint sensor.
In the embodiment of the present application, processor, for detecting finger prick to the touch-control behaviour in the fingerprint collecting region
When making, the center touch point in fingerprint collecting region described in the finger touch is determined；Control the fingerprint sensor acquisition first
The signal in region, to obtain the first fingerprint image of the finger, the center of the first area is the center touch point, institute
The area for stating first area is the first preset area；It is greater than or equal in the brightness of the mobile terminal current environment pre-
If in the case where brightness, cutting first fingerprint image, obtaining the second fingerprint image, the central point of second fingerprint image
Identical as the central point of first fingerprint image, the area of second fingerprint image is the second preset area, described second
Preset area is less than first preset area；Fingerprint recognition operation is carried out based on second fingerprint image.
As can be seen that being easier to penetrate since the meat at finger edge is relatively thin and other angles light being oblique under strong light environment
It penetrates, is affected to fingerprint image, in that case, the edge of collected fingerprint image is removed, then is referred to
Line identification, and then the quality of the fingerprint image for fingerprint recognition is improved, and then improve fingerprint recognition rate.
In the implementation of the application, processor is also used to the light in the mobile terminal current environment
In the case that degree is less than the predetermined luminance, fingerprint recognition operation is carried out based on first fingerprint image.
In the implementation of the application, processor is also used to detecting finger prick to the fingerprint collecting region
Touch control operation before, the processor lights in the fingerprint collecting region to the first brightness；Controlling the fingerprint sensing
Before device acquires the signal of first area, the brightness of second area is adjusted to the second brightness, second brightness is greater than described the
One brightness, the second area include the first area, and the area of the second area is less than the fingerprint collecting region
Area.
In the implementation of the application, processor is also used to that the brightness of the second area is adjusted to second is bright
When spending, by the brightness adjustment third brightness in region of the fingerprint collecting region in addition to the second area, the third is bright
Degree is less than first brightness.
In the implementation of the application, the fingerprint collecting region is lighted to the first brightness in processor,
Processor is also used to control the fingerprint collecting region displaying target information, and the target information comprises at least one of the following: when
Between information, notification information, target application application icon.
In the implementation of the application, after processor controls the fingerprint collecting region displaying target information,
Processor is also used to when detecting touch control operation of the finger prick to the fingerprint collecting region, and the processor is by the mesh
Mark information is removed from the fingerprint collecting region.
In the implementation of the application, after processor controls the fingerprint collecting region displaying target information,
Processor, when being also used to be not detected touch control operation of the finger prick to the fingerprint collecting region within the set duration, the place
It manages device and extinguishes the fingerprint collecting region.
It should be noted that the specific implementation process of step performed by each module can be found in it is specific described in following methods
Realization process, no longer describes herein.
Fig. 2 a is referred to, Fig. 2 a is a kind of flow diagram of fingerprint collecting method provided by the embodiments of the present application, application
In above-mentioned mobile terminal, method includes:
Step 201: when detecting touch control operation of the finger prick to the fingerprint collecting region, processor determines the hand
Refer to the center touch point in fingerprint collecting region described in touch-control.
In the implementation of the application, the center in fingerprint collecting region described in the finger touch is determined in processor
Before touch point, the method also includes: the TP of the touch screen sends touching signals to the processor；Processor determines institute
State the center touch point in fingerprint collecting region described in finger touch, comprising: processor determines the hand based on the touching signals
Refer to the center touch point in fingerprint collecting region described in touch-control.
Further, touch screen includes multiple pixels, and touching signals include the corresponding capacitance variation of each pixel
Amount.Processor determines the center touch point in fingerprint collecting region described in the finger touch based on the touching signals, comprising: place
Device is managed using target pixel points as the center touch point in fingerprint collecting region described in the finger touch, the target pixel points are corresponding
Capacitance variation amount be maximum in the multiple pixel.
Wherein, which for example can be pressing operation, clicking operation etc..
Step 202: processor controls the signal of fingerprint sensor acquisition first area, to obtain the of the finger
One fingerprint image, the center of the first area are the center touch point, and the area of the first area is the first default face
Product.
Wherein, the collected signal of fingerprint sensor is optical signal.
In the implementation of the application, processor controls the signal of fingerprint sensor acquisition first area, packet
Include: processor sends acquisition instruction to the fingerprint sensor, and the acquisition instruction is used to indicate the signal of acquisition first area；
Fingerprint sensor acquires the signal of the first area, to obtain the first fingerprint image of the finger.
Wherein, the shape of first area can be square, be also possible to it is circular, be also possible to it is rectangular,
It can be ellipse, be not limited thereto.
Wherein, the first preset area for example has 8mm*8nm, 10mm*10mm, 8mm*10mm or other values.
It should be noted that signal of the fingerprint sensor due to acquiring first area, to realize the acquisition of fingerprint image, because
The area of this collected first fingerprint image is equal to the area of first area, as the first preset area, and the first fingerprint image
The shape of picture and the shape of first area are identical.
Step 203: in the case where the brightness of the mobile terminal current environment is greater than or equal to predetermined luminance,
Processor cuts first fingerprint image, obtains the second fingerprint image, the central point of second fingerprint image and described the
The central point of one fingerprint image is identical, and the area of second fingerprint image is the second preset area, second preset area
Less than first preset area.
Wherein, it in the case where the brightness of mobile terminal current environment is greater than or equal to predetermined luminance, indicates to move
Dynamic terminal is under strong light environment, otherwise indicates that mobile terminal is under non-strong light environment.Second preset area for example has 5mm*
5nm, 6mm*6mm, 5mm*6mm or other values.
Wherein, the shape of the first fingerprint image and the shape of the second fingerprint image can be the same, be also possible to different
Sample, it is not limited thereto.
As an example it is assumed that the first preset area is 8mm*8nm, then the area of collected first fingerprint image is also
8mm*8nm.If the second preset area is 5mm*5nm, then the relationship of the first fingerprint image and the second fingerprint image such as Fig. 2 b
It is shown.By Fig. 2 b it is found that the second fingerprint image is that the first fingerprint image removes the fingerprint image behind edge.
Step 204: processor is based on second fingerprint image and carries out fingerprint recognition operation.
Specifically, processor is based on second fingerprint image and carries out fingerprint recognition operation, comprising: processor refers to second
Print image is matched with the first fingerprint template, and first fingerprint template is the used fingerprint template under strong light environment；
If the second fingerprint image matches with the first fingerprint template, processor determines fingerprint recognition success；Otherwise processor determination refers to
Line recognition failures.
As can be seen that being easier to penetrate since the meat at finger edge is relatively thin and other angles light being oblique under strong light environment
It penetrates, is affected to fingerprint image, in that case, the edge of collected fingerprint image is removed, then is referred to
Line identification, and then the quality of the fingerprint image for fingerprint recognition is improved, and then improve fingerprint recognition rate.
In the implementation of the application, second fingerprint image progress fingerprint recognition is based in processor and operates it
Afterwards, the method also includes:
In the successful situation of fingerprint recognition, processor is unlocked operation；Processor controls touch screen display system
System desktop；Processor controls the application icon of fingerprint collecting area displaying target application.
Wherein, target application can be one or more, be not limited thereto.
Further, have corresponding in application, the target application is that the fingerprint image is corresponding in the fingerprint image
Using.
Further, not corresponding in the fingerprint image in application, the target application be mobile terminal screen locking before
Used application, or accumulation access times are greater than or equal to the application of setting threshold value.
Further, not corresponding in the fingerprint image in application, first condition include detect setting gesture, and
This set gesture as make a phone call gesture when, which is the application, such as QQ, wechat, phone application etc. that can be conversed.
Specifically, currently, with application kind increase and mobile terminal use the time growth, user installation
It is increasing using meeting.Generally for the clean and tidy of system desktop, most of applications can be placed in appendage by most users,
In this way user open in application, first will enter appendage, then look for again and think application to be started, influence starting application speed
Degree.
In this application, it is unlocked since user presses fingerprint collecting region, user's First view can be straight after unlocking
It connects and notices fingerprint collecting region, in this way show the application icon for the application that some users may use in the region,
The starting speed of these applications can be promoted.
In the implementation of the application, the method also includes:
In the case where the brightness of the mobile terminal current environment is less than the predetermined luminance, the processor
Fingerprint recognition operation is carried out based on first fingerprint image.
Specifically, processor is based on first fingerprint image and carries out fingerprint recognition operation, comprising: processor refers to first
Print image is matched with the second fingerprint template, and second fingerprint template is the used fingerprint template under strong light environment,
Second fingerprint template is different from first fingerprint template；If the first fingerprint image matches with the second fingerprint template,
Processor determines fingerprint recognition success；Otherwise processor determines that fingerprint recognition fails.
As can be seen that under non-strong light environment, since environment light influences less, in that case, directly fingerprint image
It connects and fingerprint recognition is carried out using collected fingerprint image, without carrying out additional processing, promote fingerprint recognition speed.
In the implementation of the application, the method also includes:
Before detecting finger prick to the touch control operation in the fingerprint collecting region, the processor adopts the fingerprint
It lights to the first brightness in collection region；
Before the signal for controlling fingerprint sensor acquisition first area, the processor is by the brightness of second area
It is adjusted to the second brightness, second brightness is greater than first brightness, and the second area includes the first area, and described the
The area in two regions is less than the area in the fingerprint collecting region.
Wherein, it lights by fingerprint collecting region to when the first brightness, processor is by the touch screen in addition to the fingerprint
Region except pickup area is lighted to the 4th brightness, and the 4th brightness can be equal to the first brightness, might be less that the first brightness,
The first brightness can also be greater than；Alternatively, processor keeps region of the touch screen other than the fingerprint collecting region
Put out screen state.
Wherein, the first brightness can be the display brightness for the touch screen that mobile terminal is currently set, and be also possible to one in advance
If brightness, be not limited thereto.
Wherein, the second brightness is a preset brightness；Or second brightness be mobile terminal according to mobile terminal
What the environmental light brightness of current environment determined, it is such as true according to environmental light brightness and the mapping relations of fingerprint collecting regional luminance
Determine corresponding second brightness of the environmental light brightness；Or second brightness be mobile terminal according to mobile terminal current geographic position
It is determining, the current geographic position as described in being determined according to geographical location with the mapping relations of fingerprint collecting regional luminance corresponding the
Two brightness；Etc..
Wherein, the shape of the second area and shape of first area is identical or shape and the first area of second area
Shape it is not identical.
As can be seen that in the embodiment of the present application, first fingerprint collecting region is lighted to a lower brightness, in fingerprint
When pickup area is by touch-control, then by the brightness raising of second area, improved relative to by the brightness in entire fingerprint collecting region, this
Application only improves the brightness of second area, reduces power consumption.In addition, just carrying out fingerprint after the brightness for improving second area and adopting
Collection, improves the quality of collected fingerprint image.
In the implementation of the application, the method also includes:
When the brightness of the second area is adjusted to the second brightness, institute is removed in the fingerprint collecting region by the processor
The brightness adjustment third brightness in the region except second area is stated, the third brightness is less than first brightness.
Wherein, third brightness can be the minimum brightness that touch screen can be shown, be also possible to 0 (i.e. blank screen), herein not
It limits.
As can be seen that in the embodiment of the present application, by the brightness tune in other regions while second area brightness is turned up
It is low, further reduce power consumption.
In the implementation of the application, the processor lights in the fingerprint collecting region to the first brightness, packet
It includes:
In the first condition, the processor lights in the fingerprint collecting region to the first brightness, the first condition
Comprise at least one of the following: the touch screen currently shows unlock interface, detects the setting touch-control behaviour for the touch screen
Make, detects the pressing operation for HOME key, detect setting gesture, detect setting knocking.
Wherein, unlock interface is different from locking screen interface.The screen locking wallpaper shown on locking screen interface.It is shown in unlock interface
What is shown is unlock prompt.For example verification information required for unlocking is numerical ciphers, then the number of 0-9 is shown in unlock interface
The prompt text of key and display reminding input password, for another example, verification information required for unlocking is numerical ciphers, then
The digital keys of 0-9 and the prompt text of display reminding input password are shown in unlock interface.For another example, needed for unlock
The verification information wanted is fingerprint, then shows fingerprint collecting region and display reminding in fingerprint collecting region in unlock interface
Input the prompt text of fingerprint.
Wherein, it is customized to can be user for setting touch control operation, and it is customized to be also possible to mobile terminal, does not make herein
It limits.Setting touch control operation for example have single-click operation, multi-hit operation, slide (such as slide to the left, sliding behaviour to the right
Make, upward sliding operation, slide downward operation etc.), first single-click operation again slide, first multi-hit operation in slide, elder generation
Slide single-click operation, first slide multi-hit operation etc. again again.
Wherein, it is customized to can be user for setting gesture, and it is customized to be also possible to mobile terminal, does not limit herein
It is fixed.Setting gesture for example make a phone call gesture, fire refer to gesture, slip gesture, OK gesture, elder generation OK gesture fire again finger gesture,
It first fires and refers to gesture OK gesture etc. again.
Wherein, it is customized to can be user for setting knocking, and it is customized to be also possible to mobile terminal, does not make herein
It limits.Knocking includes: number of taps, taps at least one of frequency and hammer action.Wherein, which can
To be a hammer action, it is also possible to multiple hammer actions.When the hammer action is multiple hammer actions, multiple percussion
There are at least two hammer actions are different in movement.Setting knocking be user in advance according to setting hammer action according to
Set number of taps input.Wherein, setting hammer action is simple hammer action, for example is gently tapped with a finger；
Or setting hammer action is more complex hammer action, such as first with the first finger gently tap it is several under, then with second hand
Under referring to that heavy percussion is several.
As can be seen that in the embodiment of the present application, just triggering fingerprint collecting region is lighted under certain conditions, avoid
Fingerprint collecting region is always lit and influences the display life in fingerprint collecting region, improves the performance of mobile terminal.
In the implementation of the application, the processor by the fingerprint collecting region light to the first brightness it
Afterwards, the method also includes:
The processor controls the fingerprint collecting region displaying target information, and the target information includes following at least one
Kind: temporal information, notification information, power state information, network state information.
Wherein, temporal information includes present system time and current system date etc..Notification information includes short message notification
Information, call-in reporting information, the prompting etc. that expires using the event recorded in the notification information of push, memorandum.Electricity shape
State information is for indicating that the remaining electricity percentage of current mobile terminal, the power state information include state of charge icon and remains
Remaining electricity percentages etc..Network state information is for indicating the network that current mobile terminal is connected, and connected net
The signal strength of network.Network state information includes the icon of connected network, signal strength icon of connected network etc..
As can be seen that in the embodiment of the present application, after lighting fingerprint collecting region, being shown in fingerprint collecting region
Information improves the utilization rate in fingerprint collecting region.
In the implementation of the application, the processor control the fingerprint collecting region displaying target information it
Afterwards, the method also includes:
When detecting touch control operation of the finger prick to the fingerprint collecting region, the processor is by the target information
It is removed from the fingerprint collecting region.
As can be seen that in the embodiment of the present application, since fingerprint sensor is optical finger print, detecting finger prick to finger
When the touch control operation of line pickup area, in order to not influence collected fingerprint image, the information that will be shown in fingerprint collecting region
Display is removed, and then in the case where rationally utilizing fingerprint collecting region, and do not influence collected fingerprint image, improves shifting
The performance of dynamic terminal.
In the implementation of the application, the processor control the fingerprint collecting region displaying target information it
Afterwards, the method also includes:
When touch control operation of the finger prick to the fingerprint collecting region being not detected within the set duration, the processor is put out
It goes out the fingerprint collecting region.
Wherein, which for example has 1min, 3min, 5min, 10min or other values.
As can be seen that in the embodiment of the present application, if not detecting finger prick to fingerprint collecting area in some duration
The touch control operation in domain indicates that mobile terminal may be simply wanted to check by mistaken touch or user and shows on fingerprint collecting region
Content directly extinguishes fingerprint collecting region, certain, which undertakes, reduces power consumption in that case.
It is consistent with embodiment shown in Fig. 2 a, referring to Fig. 3, Fig. 3 is a kind of finger provided by the embodiments of the present application
The flow diagram of line recognition methods, is applied to above-mentioned mobile terminal, this fingerprint identification method includes:
Step 301: processor lights in the fingerprint collecting region to the first brightness.
Step 302: when detecting touch control operation of the finger prick to the fingerprint collecting region, the processor determines institute
State the center touch point in fingerprint collecting region described in finger touch.
Step 303: the brightness of second area is adjusted to the second brightness by processor, and it is bright that second brightness is greater than described first
Degree, the second area include the first area, and the area of the second area is less than the area in the fingerprint collecting region.
Step 304: when the brightness of the second area is adjusted to the second brightness, processor is by the fingerprint collecting region
The brightness adjustment third brightness in the region in addition to the second area, the third brightness are less than first brightness.
Step 305: processor controls the signal of fingerprint sensor acquisition first area, to obtain the of the finger
One fingerprint image, the center of the first area are the center touch point, and the area of the first area is the first default face
Product.
Step 306: processor determines whether the brightness of mobile terminal current environment is greater than or equal to predetermined luminance.
If so, thening follow the steps 307；
If it is not, thening follow the steps 309.
Step 307: processor cuts first fingerprint image, obtains the second fingerprint image, second fingerprint image
Central point it is identical as the central point of first fingerprint image, the area of second fingerprint image is the second preset area,
Second preset area is less than first preset area.
Step 308: processor is based on second fingerprint image and carries out fingerprint recognition operation.
Step 309: processor is based on first fingerprint image and carries out fingerprint recognition operation.
It should be noted that the specific implementation process of the present embodiment can be found in specific implementation described in above method embodiment
Process no longer describes herein.
It is consistent with above-mentioned Fig. 2 a and embodiment shown in Fig. 3, referring to Fig. 4, Fig. 4 is provided by the embodiments of the present application one
The structural schematic diagram of kind of mobile terminal, as shown, the mobile terminal includes touch screen, processor and fingerprint sensor, it is described
Touch screen includes fingerprint collecting region, and the fingerprint sensor is set to below the fingerprint collecting region, and mobile terminal further includes
Memory, communication interface and one or more programs, wherein said one or multiple programs are stored in above-mentioned memory
In, and be configured to be executed by above-mentioned processor, above procedure includes the instruction for executing following steps:
When detecting touch control operation of the finger prick to the fingerprint collecting region, fingerprint described in the finger touch is determined
The center touch point of pickup area；
The signal of fingerprint sensor acquisition first area is controlled, to obtain the first fingerprint image of the finger, institute
The center for stating first area is the center touch point, and the area of the first area is the first preset area；
In the case where the brightness of the mobile terminal current environment is greater than or equal to predetermined luminance, described in cutting
First fingerprint image, obtains the second fingerprint image, in the central point of second fingerprint image and first fingerprint image
Heart point is identical, and the area of second fingerprint image is the second preset area, and it is pre- that second preset area is less than described first
If area；
Fingerprint recognition operation is carried out based on second fingerprint image.
In the implementation of the application, above procedure includes the instruction for being also used to execute following steps:
In the case where the brightness of the mobile terminal current environment is less than the predetermined luminance, based on described the
One fingerprint image carries out fingerprint recognition operation.
In the implementation of the application, above procedure includes the instruction for being also used to execute following steps:
Before detecting finger prick to the touch control operation in the fingerprint collecting region, the fingerprint collecting region is lighted
To the first brightness；
Before the signal for controlling fingerprint sensor acquisition first area, it is bright that the brightness of second area is adjusted to second
Degree, second brightness are greater than first brightness, and the second area includes the first area, the face of the second area
Product is less than the area in the fingerprint collecting region.
In the implementation of the application, above procedure includes the instruction for being also used to execute following steps:
When the brightness of the second area is adjusted to the second brightness, the second area is removed into the fingerprint collecting region
Except region brightness adjustment third brightness, the third brightness be less than first brightness.
In the implementation of the application, light by the fingerprint collecting region to the first brightness, above-mentioned journey
Sequence includes being also used to execute the instruction of following steps:
The fingerprint collecting region displaying target information is controlled, the target information comprises at least one of the following: time letter
Breath, notification information, power state information, network state information.
In the implementation of the application, after controlling the fingerprint collecting region displaying target information, above-mentioned journey
Sequence includes being also used to execute the instruction of following steps:
When detecting touch control operation of the finger prick to the fingerprint collecting region, by the target information from the fingerprint
Pickup area removes.
In the implementation of the application, after controlling the fingerprint collecting region displaying target information, above-mentioned journey
Sequence includes being also used to execute the instruction of following steps:
When touch control operation of the finger prick to the fingerprint collecting region being not detected within the set duration, extinguish the fingerprint
Pickup area.
It should be noted that the specific implementation process of the present embodiment can be found in specific implementation described in above method embodiment
Process no longer describes herein.
Above-described embodiment is mainly described the scheme of the embodiment of the present application from the angle of method side implementation procedure.It can
With understanding, in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or soft for electronic equipment
Part module.Those skilled in the art should be readily appreciated that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, the application can be realized with the combining form of hardware or hardware and computer software.Some function is studied carefully
Unexpectedly it is executed in a manner of hardware or computer software driving hardware, the specific application and design constraint depending on technical solution
Condition.Professional technician can specifically realize described function to each using distinct methods, but this
It realizes it is not considered that exceeding scope of the present application.
The embodiment of the present application can carry out the division of functional unit according to the method example to electronic equipment, for example, can
With each functional unit of each function division of correspondence, two or more functions can also be integrated in a processing unit
In.The integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.It needs
It is noted that be schematical, only a kind of logical function partition to the division of unit in the embodiment of the present application, it is practical real
It is current that there may be another division manner.
It is below the application Installation practice, the application Installation practice is realized for executing the application embodiment of the method
Method.Referring to Fig. 5, Fig. 5 is that a kind of fingerprint identification device provided by the embodiments of the present application is applied to including touch screen and refers to
The mobile terminal of line sensor, the touch screen include fingerprint collecting region, and the fingerprint sensor is set to the fingerprint collecting
Below region, which includes:
Determination unit 501, described in determining when detecting touch control operation of the finger prick to the fingerprint collecting region
The center touch point in fingerprint collecting region described in finger touch；
Acquisition unit 502, for controlling the signal of fingerprint sensor acquisition first area, to obtain the finger
First fingerprint image, the center of the first area are the center touch point, and the area of the first area is first default
Area；
Cutter unit 503 is greater than or equal to predetermined luminance for the brightness in the mobile terminal current environment
In the case where, cut first fingerprint image, obtain the second fingerprint image, the central point of second fingerprint image with it is described
The central point of first fingerprint image is identical, and the area of second fingerprint image is the second preset area, the second default face
Product is less than first preset area；
Recognition unit 504, for carrying out fingerprint recognition operation based on second fingerprint image.
In the implementation of the application, recognition unit 504 is also used in the mobile terminal current environment
In the case that brightness is less than the predetermined luminance, fingerprint recognition operation is carried out based on first fingerprint image.
In the implementation of the application, described device further include:
Screen control unit 505, for inciting somebody to action before detecting finger prick to the touch control operation in the fingerprint collecting region
It lights to the first brightness in the fingerprint collecting region；It, will before the signal for controlling fingerprint sensor acquisition first area
The brightness of second area is adjusted to the second brightness, and second brightness is greater than first brightness, and the second area includes described
First area, the area of the second area are less than the area in the fingerprint collecting region.
In the implementation of the application, screen control unit 505 is also used to by the brightness tune of the second area
To when the second brightness, by the brightness adjustment third brightness in region of the fingerprint collecting region in addition to the second area, institute
Third brightness is stated less than first brightness.
In the implementation of the application, the fingerprint collecting region is lighted to first in screen control unit 505
After brightness, screen control unit 505 is also used to control the fingerprint collecting region displaying target information, the target information
It comprises at least one of the following: temporal information, notification information, power state information, network state information.
In the implementation of the application, fingerprint collecting region displaying target is controlled in screen control unit 505
After information, screen control unit 505 is also used to when detecting touch control operation of the finger prick to the fingerprint collecting region,
The target information is removed from the fingerprint collecting region.
In the implementation of the application, fingerprint collecting region displaying target is controlled in screen control unit 505
After information, screen control unit 505 is also used to be not detected finger prick within the set duration to the fingerprint collecting region
When touch control operation, extinguish the fingerprint collecting region.
It should be noted that determination unit 501, acquisition unit 502, cutter unit 503, recognition unit 504 can pass through place
Device is managed to realize.
The embodiment of the present application also provides a kind of computer storage medium, wherein computer storage medium storage is for electricity
The computer program of subdata exchange, the computer program make computer execute any as recorded in above method embodiment
Some or all of method step, above-mentioned computer include mobile terminal.
The embodiment of the present application also provides a kind of computer program product, and above-mentioned computer program product includes storing calculating
The non-transient computer readable storage medium of machine program, above-mentioned computer program are operable to that computer is made to execute such as above-mentioned side
Some or all of either record method step in method embodiment.The computer program product can be a software installation
Packet, above-mentioned computer includes mobile terminal.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the application is not limited by the described action sequence because
According to the application, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, related actions and modules not necessarily the application
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of said units, it is only a kind of
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit,
It can be electrical or other forms.
Above-mentioned unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If above-mentioned integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer-readable access to memory.Based on this understanding, the technical solution of the application substantially or
Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products
Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment
(can be personal computer, server or network equipment etc.) executes all or part of each embodiment above method of the application
Step.And memory above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory
May include: flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English:
Random Access Memory, referred to as: RAM), disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and
Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the application
There is change place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (10)
1. a kind of fingerprint identification method, which is characterized in that applied to the mobile end for including touch screen, processor and fingerprint sensor
End, the touch screen include fingerprint collecting region, and the fingerprint sensor is set to below the fingerprint collecting region, the method
Include:
When detecting touch control operation of the finger prick to the fingerprint collecting region, the processor determines the finger touch institute
State the center touch point in fingerprint collecting region；
The processor controls the signal of fingerprint sensor acquisition first area, to obtain the first fingerprint image of the finger
Picture, the center of the first area are the center touch point, and the area of the first area is the first preset area；
In the case where the brightness of the mobile terminal current environment is greater than or equal to predetermined luminance, the processor is cut
First fingerprint image is cut, the second fingerprint image, the central point of second fingerprint image and first fingerprint image are obtained
The central point of picture is identical, and the area of second fingerprint image is the second preset area, and second preset area is less than described
First preset area；
The processor is based on second fingerprint image and carries out fingerprint recognition operation.
2. the method according to claim 1, wherein the method also includes:
In the case where the brightness of the mobile terminal current environment is less than the predetermined luminance, the processor is based on
First fingerprint image carries out fingerprint recognition operation.
3. method according to claim 1 or 2, which is characterized in that the method also includes:
Before detecting finger prick to the touch control operation in the fingerprint collecting region, the processor is by the fingerprint collecting area
It lights to the first brightness in domain；
Before the signal for controlling fingerprint sensor acquisition first area, the brightness of second area is adjusted to by the processor
Second brightness, second brightness are greater than first brightness, and the second area includes the first area, secondth area
The area in domain is less than the area in the fingerprint collecting region.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
When the brightness of the second area is adjusted to the second brightness, the processor is by the fingerprint collecting region except described the
The brightness adjustment third brightness in the region except two regions, the third brightness are less than first brightness.
5. the method according to claim 3 or 4, which is characterized in that the processor lights the fingerprint collecting region
To the first brightness, the method also includes:
The processor controls the fingerprint collecting region displaying target information, and the target information comprises at least one of the following:
Temporal information, notification information, power state information, network state information.
6. according to the method described in claim 5, it is characterized in that, the processor, which controls the fingerprint collecting region, shows mesh
After marking information, the method also includes:
When detecting touch control operation of the finger prick to the fingerprint collecting region, the processor is by the target information from institute
State the removal of fingerprint collecting region.
7. method according to claim 5 or 6, which is characterized in that it is aobvious that the processor controls the fingerprint collecting region
After showing target information, the method also includes:
When touch control operation of the finger prick to the fingerprint collecting region being not detected within the set duration, the processor extinguishes institute
State fingerprint collecting region.
8. a kind of fingerprint identification device, which is characterized in that described applied to the mobile terminal including touch screen and fingerprint sensor
Touch screen includes fingerprint collecting region, and the fingerprint sensor is set to below the fingerprint collecting region, and described device includes:
Determination unit, for when detecting touch control operation of the finger prick to the fingerprint collecting region, determining the finger touching
Control the center touch point in the fingerprint collecting region；
Acquisition unit refers to for controlling the signal of fingerprint sensor acquisition first area with obtain the finger first
Print image, the center of the first area are the center touch point, and the area of the first area is the first preset area；
Cutter unit, for the brightness in the mobile terminal current environment be greater than or equal to predetermined luminance the case where
Under, first fingerprint image is cut, the second fingerprint image is obtained, the central point of second fingerprint image and described first refer to
The central point of print image is identical, and the area of second fingerprint image is the second preset area, and second preset area is less than
First preset area；
Recognition unit, for carrying out fingerprint recognition operation based on second fingerprint image.
9. a kind of mobile terminal, which is characterized in that the mobile terminal includes touch screen, processor and fingerprint sensor, described
Touch screen includes fingerprint collecting region, and the fingerprint sensor is set to below the fingerprint collecting region, and the mobile terminal is also
The memory is stored in including memory, communication interface, and one or more programs, one or more of programs
In, and be configured to be executed by the processor, described program includes for executing such as the described in any item sides of claim 1-7
The instruction of step in method.
10. a kind of computer readable storage medium, which is characterized in that storage is used for the computer program of electronic data interchange,
In, the computer program makes computer execute the method according to claim 1 to 7.
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|---|---|---|---|
| CN201811326078.7A CN109241954B (en) | 2018-11-08 | 2018-11-08 | Fingerprint identification method and related equipment |
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