CN106022047A - Fingerprint unlocking method and terminal - Google Patents
Fingerprint unlocking method and terminal Download PDFInfo
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- CN106022047A CN106022047A CN201610352045.4A CN201610352045A CN106022047A CN 106022047 A CN106022047 A CN 106022047A CN 201610352045 A CN201610352045 A CN 201610352045A CN 106022047 A CN106022047 A CN 106022047A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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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
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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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
- G06V40/1347—Preprocessing; Feature extraction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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Abstract
The embodiment of the invention discloses a fingerprint unlocking method. The method comprises following steps: utilizing a fingerprint recognition module to collect multiple capacitance value when a user touches the fingerprint recognition module; generating a binary fingerprint image based on the multiple capacitance value; matching the binary fingerprint image with a pre-set fingerprint template; and unlocking a terminal when the binary fingerprint image is successfully matched with the pre-set fingerprint template.The embodiment of the invention provides the terminal. Prior to fingerprint matching, binary processing of the fingerprint image is performed so that complexity of the fingerprint image is reduced and fingerprint comparison time is shortened. Therefore, efficiency of fingerprint unlocking is increased.
Description
Technical field
The present invention relates to technical field of electronic equipment, particularly relate to a kind of unlocked by fingerprint method and terminal.
Background technology
Along with the fast development of information technology, the use of terminal (such as mobile phone, panel computer etc.) is increasingly
Universal.Fingerprint identification technology is as the standard configuration technology in terminal, and fingerprint identification technology can be not only used for terminal
Unblock, wake up up, mobile payment etc. be used widely.While fingerprint identification technology is popular,
In order to realize quick release, the unlocked time of terminal is also the direct concern of terminal manufacturer.
But, in prior art, the unlocked by fingerprint process of terminal can be divided into three main flow, obtains fingerprint
Image, fingerprint matching (being mated with preset fingerprint template by fingerprint image) and unblock terminal, owing to referring to
Print image is 2-D data, thus, complex, during carrying out fingerprint matching, refer specifically to extract
During the feature of fingerprint image and preset fingerprint template, elapsed time is more, thus, cause fingerprint
Unlock inefficient.
Summary of the invention
Embodiments provide a kind of unlocked by fingerprint method and terminal, it is possible to increase the unblock efficiency of terminal.
The embodiment of the invention discloses a kind of unlocked by fingerprint method, including:
When the fingerprint recognition module of user's touch terminal, described fingerprint recognition module is utilized to gather multiple electric capacity
Value；
Binaryzation fingerprint image is generated according to the plurality of capacitance；
Described binaryzation fingerprint image is mated with preset fingerprint template；
When described binaryzation fingerprint image is with described preset fingerprint template matching success, described terminal is carried out
Unlock.
It is as a kind of possible embodiment, described according to the plurality of capacitance generation binaryzation fingerprint image,
Including:
The plurality of capacitance is generated original fingerprint image；
Described original fingerprint image is carried out binary conversion treatment, obtains binaryzation fingerprint image.
As a kind of possible embodiment, described described original fingerprint image is carried out binary conversion treatment, bag
Include:
Described original fingerprint image is divided into multiple region；
Determine that first object region and feature point number that in the plurality of region, feature point number is most are minimum
Second target area；
By corresponding with described second target area for the described first object region ash in described original fingerprint image
Degree average is as binary-state threshold；
According to described binary-state threshold, described original fingerprint image is carried out binary conversion treatment.
It is as a kind of possible embodiment, described according to the plurality of capacitance generation binaryzation fingerprint image,
Including:
The plurality of capacitance is carried out binary conversion treatment；
Multiple capacitances after described binary conversion treatment are generated binaryzation fingerprint image.
As a kind of possible embodiment, described described binaryzation fingerprint image is entered with preset fingerprint template
Row matches, including:
The fisrt feature of described binaryzation fingerprint image is extracted according to predetermined manner；
Preset fingerprint template is carried out binary conversion treatment, obtains binaryzation preset fingerprint template；
The second feature of described binaryzation preset fingerprint template is extracted according to described predetermined manner；
Described fisrt feature is mated with described second feature, and in described fisrt feature and described second
During characteristic matching success, described terminal is unlocked.
As a kind of possible embodiment, described utilize described fingerprint recognition module gather multiple capacitances it
Before, described method also includes:
Determine the touch scope of described fingerprint recognition module, and in the range of described touch, gather multiple capacitance.
Embodiment of the present invention second aspect provides a kind of terminal, including:
Collecting unit, for when the fingerprint recognition module of user's touch terminal, utilizes described fingerprint recognition mould
Group gathers multiple capacitances；
Signal generating unit, generates binaryzation fingerprint for the plurality of capacitance gathered according to described collecting unit
Image；
Matching unit, for the described binaryzation fingerprint image and the preset fingerprint mould that described signal generating unit are generated
Plate mates；
Solve lock unit, be that described binaryzation fingerprint image is with described for the matching result at described matching unit
During preset fingerprint template matching success, described terminal is unlocked.
As a kind of possible embodiment, described signal generating unit includes:
First generation module, generates original fingerprint for the plurality of capacitance gathered by described collecting unit
Image；
First processing module, carries out two for the described original fingerprint image generating described first generation module
Value processes, and obtains binaryzation fingerprint image.
As a kind of possible embodiment, described first processing module includes:
Divide module, for described original fingerprint image is divided into multiple region；
First determines module, feature point number in the plurality of region determining described division Module Division
Most first object regions and minimum the second target area of feature point number；
Second determines module, for determining described first object region that module determines and described by described first
The corresponding gray average in described original fingerprint image in second target area is as binary-state threshold；
According to second, second processing module, for determining that described binary-state threshold that module determines is to described original
Fingerprint image carries out binary conversion treatment.
As a kind of possible embodiment, described signal generating unit includes:
3rd processing module, is carried out at binaryzation for the plurality of capacitance gathering described collecting unit
Reason；
Second generation module, for generating the multiple capacitances after described 3rd processing module binary conversion treatment
Binaryzation fingerprint image.
As a kind of possible embodiment, described matching unit includes:
Extraction module, for extracting, according to predetermined manner, the described binaryzation fingerprint image that described signal generating unit generates
The fisrt feature of picture；
Fourth processing module, for preset fingerprint template is carried out binary conversion treatment, obtains binaryzation and presets finger
Stricture of vagina template；
Described extraction module also particularly useful for,
The second feature of described binaryzation preset fingerprint template is extracted according to described predetermined manner；
Matching module, for mating described fisrt feature with described second feature, and in described coupling
The matching result of module be described fisrt feature with described second feature the match is successful time, by described solution lock unit
Described terminal is unlocked.
As a kind of possible embodiment, described terminal also includes:
Determine unit, for determining the touch scope of described fingerprint recognition module, and by described collecting unit profit
In the range of described touch, multiple capacitance is gathered with described fingerprint recognition module.
The embodiment of the present invention third aspect provides a kind of terminal, including:
Processor, memorizer, communication interface, fingerprint recognition module and communication bus, described processor, institute
State memorizer, described fingerprint recognition module and described communication interface connected by described communication bus and complete phase
Communication between Hu；
Described memorizer storage has executable program code, described fingerprint recognition module to be used for obtaining fingerprint image,
Described communication interface is used for radio communication；
Described processor, for calling the described executable program code in described memorizer, performs such as first party
The some or all of step of the method described by face.
Implement the embodiment of the present invention, have the advantages that
It can be seen that unlocked by fingerprint method described in the embodiment of the present invention is at the fingerprint of user's touch terminal
When identifying module, utilize fingerprint recognition module to gather multiple capacitances, generate two-value according to the plurality of capacitance
Change fingerprint image, this binaryzation fingerprint image is mated with preset fingerprint template, at this binaryzation fingerprint
When image and preset fingerprint template matching success, terminal is unlocked.Before contrasting at fingerprint, will
Fingerprint image carries out binary conversion treatment, thus, reduce the complexity of fingerprint image, reduce fingerprint matching
Time, thus, improve the efficiency of terminal unlocking.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to required in embodiment
The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is some realities of the present invention
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the first embodiment of a kind of unlocked by fingerprint method disclosed in the embodiment of the present invention；
Fig. 2 is the schematic flow sheet of the second embodiment of a kind of unlocked by fingerprint method disclosed in the embodiment of the present invention；
Fig. 3 a is the structural representation of the first embodiment of a kind of terminal disclosed in the embodiment of the present invention；
Fig. 3 b is the structural representation of the signal generating unit of the terminal described in Fig. 3 a disclosed in the embodiment of the present invention
Figure；
Fig. 3 c is the structural representation of the signal generating unit of the terminal described in Fig. 3 a disclosed in the embodiment of the present invention
Figure；
Fig. 3 d is the structural representation of the matching unit of the terminal described in Fig. 3 a disclosed in the embodiment of the present invention
Figure；
Fig. 3 e is the another structural representation of the first embodiment of a kind of terminal disclosed in the embodiment of the present invention；
Fig. 4 is the structural representation of the second embodiment of a kind of terminal disclosed in the embodiment of the present invention；
Fig. 5 is the structural representation of a kind of mobile phone disclosed in the embodiment of the present invention.
Detailed description of the invention
Embodiments provide a kind of unlocked by fingerprint method and terminal, it is possible to increase the unblock efficiency of terminal.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.
Term " first " in description and claims of this specification and described accompanying drawing, " second ", "
Three " and " the 4th " etc. is for distinguishing different object rather than for describing particular order.Additionally, art
Language " includes " and " having " and their any deformation, it is intended that cover non-exclusive comprising.Such as
Contain series of steps or the process of unit, method, system, product or equipment are not limited to list
Step or unit, but the most also include step or the unit do not listed, or the most also include right
In intrinsic other step of these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can in conjunction with the embodiments
To be included at least one embodiment of the present invention.There is this phrase not in each position in the description
Necessarily each mean identical embodiment, be not and the independent of other embodiments mutual exclusion or alternative embodiment.
Those skilled in the art explicitly and are implicitly understood by, and embodiment described herein can be real with other
Execute example to combine.
Terminal described by the embodiment of the present invention can include smart mobile phone (as Android phone, iOS mobile phone,
Windows Phone mobile phone etc.), panel computer, palm PC, notebook computer, mobile internet device
(MID, Mobile Internet Devices) or Wearable etc., above-mentioned terminal is only citing, rather than thoroughly
Lift, including but not limited to above-mentioned terminal.
Referring to Fig. 1, the first embodiment flow process for a kind of unlocked by fingerprint method of embodiment of the present invention offer is shown
It is intended to.Unlocked by fingerprint method described in the present embodiment, comprises the following steps:
101, during the fingerprint recognition module of user's touch terminal, described fingerprint recognition module is utilized to adopt
Collect multiple capacitance.
In implementing, fingerprint recognition module comprises at least fingerprint acquisition chip, and fingerprint collecting chip comprises many
Individual capacitance collection point, during user touches fingerprint recognition module, every on fingerprint collecting chip
The capacitance that one capacitance collection point is gathered is different, such as, user touch fingerprint recognition module time,
Capacitance corresponding to the capacitance collection point on fingerprint recognition module that is not touched is 0, the electricity being touched
Capacitance corresponding to capacitance collection point can be more than 0, further, in order to prevent some collection point from gathering by mistake, and can
The capacitance of the capacitance collection point that definition is touched can be more than 0.1.Thus, if user is touching fingerprint
During identifying module, then fingerprint recognition module just can collect multiple capacitance, and alternatively, fingerprint is known
Capacitance all may be collected on the position touched by user on other module.Alternatively, the fingerprint recognition of terminal
Module can be the fingerprint recognition module that terminal carries, or, external fingerprint recognition module.
Alternatively, the fingerprint recognition module of above-mentioned touch terminal can comprise contact, or pressing, such as, uses
Family touches fingerprint recognition module lightly, or, user's firmly pressing fingerprint recognition module.
Still optionally further, fingerprint recognition module can be wearable device (such as intelligent watch, Intelligent bracelet etc.)
Fingerprint recognition module, between wearable device with terminal set up communicate after, wearable device can be regarded
One parts of terminal.Such as, when the fingerprint recognition module on wearable device is touched, fingerprint recognition mould
Group can gather multiple capacitance.
Further, above-mentioned fingerprint recognition module is utilized to gather multiple capacitances, available fingerprint recognition module
Part or all capacitance collection point gather multiple capacitances.Such as, it is many by fingerprint recognition module
Individual region, at least one region in available the plurality of region gathers capacitance.Alternatively, in order to reduce
The power consumption of terminal, when user touches fingerprint recognition module, can only utilize the fingerprint recognition that user touches
The capacitance collection point of module gathers the capacitance of the relevant position of the fingerprint recognition module touched to this.
102, binaryzation fingerprint image is generated according to the plurality of capacitance.
In implementing, above-mentioned multiple capacitances can be converted into binaryzation fingerprint image, this step can comprise
Two kinds of different embodiments:
Wherein, the first embodiment can be: above-mentioned multiple capacitances is generated original fingerprint image, to this
Original fingerprint image carries out binary conversion treatment, obtains binaryzation fingerprint image.Under normal circumstances, due to fingerprint
Identify and there are differences between multiple capacitances that module collects, thus, can be mapped to according to multiple capacitances
Different gray values, thus, generate original fingerprint image.Further, this original fingerprint image can be entered
Row binary conversion treatment, thus, available binaryzation fingerprint image, in prior art, binaryzation fingerprint image
Only comprising two tonal gradations, i.e. 0 and 255, wherein, 0 is black, and 255 is white, binaryzation fingerprint image
For relatively primitive fingerprint image, binaryzation fingerprint image comprises information less, and the more original finger of contrast
Print image is poor, but to comprise information less for binaryzation fingerprint image, in characteristic extraction procedure, and can be quickly
Carry out feature extraction.During binary conversion treatment, it is critical only that and determine a binary-state threshold, original
Pixel value corresponding more than the pixel of this binary-state threshold in fingerprint image is 1, less than or equal to this binaryzation
The pixel value that the pixel of threshold value is corresponding is 0.
Alternatively, above-mentioned binary-state threshold can be to remove max pixel value and minimum pixel in original fingerprint image
Any pixel value in value, or, can be the average pixel value of whole original fingerprint image, or, can be
The average pixel value of part fingerprint image in original fingerprint image.
Further, above-mentioned original fingerprint image can be divided into multiple region；Determine feature in the plurality of region
The most first object region of some number and minimum the second target area of feature point number；By first object district
The gray average of territory and the second target area is as binary-state threshold, according to this binary-state threshold to original fingerprint
Image carries out binary conversion treatment.The size in above-mentioned multiple region can be identical or different.Can be according to area
Fingerprint image is divided into multiple region by size.Then, and can being about to multiple regions of original fingerprint image is carried out
Feature point extraction, the method for feature point extraction can be Harris Corner Detection or scale invariant feature extraction
(Scale Invariant Feature Transform, SIFT) method.Each district in above-mentioned multiple region can be unified
The feature point number in territory, can be using regions most for feature point number as first object region and feature point number
Minimum region, as the second target area, calculates the gray scale in the original fingerprint image that this two region is corresponding equal
Value, as binary-state threshold.Based on this binary-state threshold, original fingerprint image is carried out binary conversion treatment.
Or, this binary-state threshold can be also other at least one regions in multiple regions of original fingerprint image
Gray average.Alternatively, this binary-state threshold can be arranged according to practical experience voluntarily by user.
Wherein, the second embodiment can be: above-mentioned multiple capacitances can be carried out binary conversion treatment；By two
Multiple capacitances after value processes generate binaryzation fingerprint image.Such as, the plurality of capacitance can be calculated
Multiple capacitances, using this average as binary-state threshold, are carried out binary conversion treatment, such as, electric capacity by average
Value is 1 more than the capacitance of this binary-state threshold, is 0 less than or equal to the capacitance of this binary-state threshold.Its
In, this binary-state threshold also can empirically be worth to determine.The multiple capacitances after binary conversion treatment are obtained
Afterwards, then the multiple capacitances after this binary conversion treatment are generated binaryzation fingerprint image.
103, described binaryzation fingerprint image is mated with preset fingerprint template.
In implementing, binaryzation fingerprint image can be mated with preset fingerprint template.Such as, respectively
Binary image and preset fingerprint template are carried out feature extraction, then the feature extracted are mated,
If fitting through, then terminal being unlocked, if it fails to match, then cannot unlock.
Alternatively, the fisrt feature of binaryzation fingerprint image is extracted according to predetermined manner；To preset fingerprint template
Carry out binary conversion treatment, obtain binaryzation preset fingerprint template；Described two-value is extracted according to described predetermined manner
Change the second feature of preset fingerprint template；Described fisrt feature is mated with described second feature, and
Described terminal time the match is successful, is unlocked by described fisrt feature and described second feature.Wherein, preset
Mode can be used for image is carried out feature point extraction, or, can be used for image is carried out feature lines extraction.
Wherein, fisrt feature or second feature can be characterized a little or feature lines.
104, when described binaryzation fingerprint image is with described preset fingerprint template matching success, to described terminal
It is unlocked.
In implementing, when binaryzation fingerprint image is with preset fingerprint template matching success, terminal can be entered
Row unlocks or is unlocked certain application in terminal.Such as, it is in terminal and puts out under screen state, right
Terminal is unlocked, and the display screen of terminal is lighted, and shows the desktop after unblock；Or, in end
Under bright screen state, terminal is unlocked, the desktop after display unblock；Or, it is in terminal and solves
Under lock status, at least one application of terminal can be unlocked, i.e. start this at least one application or exhibition
Show the default page of a certain application in this at least one application；Or, it is in terminal and puts out under screen state,
At least one application of terminal can be unlocked, i.e. start this at least one application or show this at least one
The default page of a certain application in individual application.Wherein, this default page can be the terminal unlocking page, a certain
The homepage of individual application, uses the page that frequency is the highest, or, the last page closed.
It can be seen that unlocked by fingerprint method described in the embodiment of the present invention is at the fingerprint of user's touch terminal
When identifying module, utilize fingerprint recognition module to gather multiple capacitances, generate two-value according to the plurality of capacitance
Change fingerprint image, this binaryzation fingerprint image is mated with preset fingerprint template, at this binaryzation fingerprint
When image and preset fingerprint template matching success, terminal is unlocked.Before contrasting at fingerprint, will
Fingerprint image carries out binary conversion treatment, thus, reduce the complexity of fingerprint image, reduce fingerprint matching
Time, thus, improve the efficiency of terminal unlocking.
Referring to Fig. 2, the second embodiment flow process for a kind of unlocked by fingerprint method of embodiment of the present invention offer is shown
It is intended to.Unlocked by fingerprint method described in the present embodiment, comprises the following steps:
201, when the fingerprint recognition module of user's touch terminal, the touch model of described fingerprint recognition module is determined
Enclose, and in the range of described touch, gather multiple capacitance.
In implementing, fingerprint recognition module comprises at least fingerprint acquisition chip, and fingerprint collecting chip comprises many
Individual capacitance collection point, during user touches fingerprint recognition module, every on fingerprint collecting chip
The capacitance that one capacitance collection point is gathered is different, such as, user touch fingerprint recognition module time,
Capacitance corresponding to the capacitance collection point on fingerprint recognition module that is not touched is 0, the electricity being touched
Capacitance corresponding to capacitance collection point can be more than 0, further, in order to prevent some collection point from gathering by mistake, and can
The capacitance of the capacitance collection point that definition is touched can be more than 0.1.
Under normal circumstances, on fingerprint recognition module, the position of only user's pressing just can collect capacitance, because of
And, the touch scope of fingerprint recognition module when the fingerprint recognition module of user's touch terminal, can be determined, example
As, fingerprint recognition module can integrated pressure sensor, if certain capacitance collection point is pressed, then can gather
Capacitance.Or, determine that user presses fingerprint recognition
202, binaryzation fingerprint image is generated according to the plurality of capacitance.
203, described binaryzation fingerprint image is mated with preset fingerprint template.
204, when described binaryzation fingerprint image is with described preset fingerprint template matching success, to described terminal
It is unlocked.
Wherein, step 202-step 204 refers to the step 102-step of the unlocked by fingerprint method described in Fig. 1
Rapid 104.
It can be seen that unlocked by fingerprint method described in the embodiment of the present invention is at the fingerprint of user's touch terminal
When identifying module, it may be determined that user touches the touch scope of fingerprint recognition module, and adopts based on this touch scope
Collect multiple capacitance, generate binaryzation fingerprint image according to the plurality of capacitance, by this binaryzation fingerprint image
Mate with preset fingerprint template, when this binaryzation fingerprint image is with preset fingerprint template matching success,
Terminal is unlocked.Before contrasting at fingerprint, fingerprint image is carried out binary conversion treatment, thus,
Reduce the complexity of fingerprint image, reduce the time of fingerprint matching, thus, improve terminal unlocking
Efficiency.
Refer to Fig. 3 a, for the first embodiment structural representation of a kind of terminal that the embodiment of the present invention provides.
Terminal described in the present embodiment, including: collecting unit 301, signal generating unit 302, matching unit 303
Conciliate lock unit 304, specific as follows:
Collecting unit 301, for when the fingerprint recognition module of user's touch terminal, utilizes described fingerprint recognition
Module gathers multiple capacitances.
Signal generating unit 302, generates two-value for the plurality of capacitance gathered according to described collecting unit 301
Change fingerprint image.
Matching unit 303, for generating the described binaryzation fingerprint image of 302 and presetting by described signal generating unit
Fingerprint template mates.
Solve lock unit 304, be described binaryzation fingerprint image for the matching result at described matching unit 303
During with described preset fingerprint template matching success, described terminal is unlocked.
Alternatively, the described signal generating unit 302 of the terminal as described in Fig. 3 b, Fig. 3 b includes:
First generation module 3021, generates for the plurality of capacitance gathered by described collecting unit 301
Original fingerprint image；
First processing module 3022, for the described original fingerprint figure generating described first generation module 3021
As carrying out binary conversion treatment, obtain binaryzation fingerprint image.
Still optionally further, described first processing module 3021 includes:
Divide module (not marking in figure), for described original fingerprint image is divided into multiple region；
First determines module (not marking in figure), for determining the plurality of region of described division Module Division
First object region that middle feature point number is most and minimum the second target area of feature point number；
Second determines module (not marking in figure), for determining described first mesh that module determines by described first
Mark region gray average in described original fingerprint image corresponding with described second target area is as binaryzation
Threshold value；
Second processing module (does not marks in figure), for determining, according to second, the described binaryzation threshold that module determines
Value carries out binary conversion treatment to described original fingerprint image.
Alternatively, the described signal generating unit 302 of the terminal as described in Fig. 3 c, Fig. 3 a includes:
3rd processing module 305, carries out two for the plurality of capacitance gathering described collecting unit 301
Value processes；
Second generation module 306, for by the multiple electric capacity after described 3rd processing module 305 binary conversion treatment
Value generates binaryzation fingerprint image.
Alternatively, the described matching unit 303 of the terminal as described in Fig. 3 d, Fig. 3 a includes:
Extraction module 3031, for extracting, according to predetermined manner, the described two-value that described signal generating unit 302 generates
Change the fisrt feature of fingerprint image；
Fourth processing module 3032, for preset fingerprint template is carried out binary conversion treatment, obtains binaryzation pre-
If fingerprint template；
Described extraction module 3031 also particularly useful for,
The second feature of described binaryzation preset fingerprint template is extracted according to described predetermined manner；
Matching module 3033, for mating described fisrt feature with described second feature, and described
The matching result of matching module 3033 be described fisrt feature with described second feature the match is successful time, by described
Solve lock unit 304 described terminal is unlocked.
Alternatively, as shown in Figure 3 e, the terminal described in Fig. 3 a may also include that
Determine unit 307, for determining the touch scope of described fingerprint recognition module, and by described collecting unit
301 utilize described fingerprint recognition module to gather multiple capacitance in the range of described touch.
It can be seen that the terminal described in the embodiment of the present invention can be at the fingerprint recognition mould of user's touch terminal
During group, utilize fingerprint recognition module to gather multiple capacitances, generate binaryzation fingerprint according to the plurality of capacitance
Image, mates this binaryzation fingerprint image with preset fingerprint template, this binaryzation fingerprint image with
During preset fingerprint template matching success, terminal is unlocked.Before contrasting at fingerprint, by fingerprint image
As carrying out binary conversion treatment, thus, reduce the complexity of fingerprint image, reduce the time of fingerprint matching,
Thus, improve the efficiency of terminal unlocking.
Refer to Fig. 4, for the second example structure schematic diagram of a kind of terminal that the embodiment of the present invention provides.This
Terminal described in embodiment, including: at least one input equipment 1000；At least one outut device 2000；
At least one processor 3000, such as CPU；With memorizer 4000, above-mentioned input equipment 1000, output
Equipment 2000, processor 3000 and memorizer 4000 are connected by bus 5000.
Wherein, above-mentioned input equipment 1000 concretely contact panel, physical button or mouse, fingerprint are known
Other module etc..
Above-mentioned outut device 2000 specifically can display screen.
Above-mentioned memorizer 4000 can be high-speed RAM memorizer, it is possible to for non-labile memorizer
(non-volatile memory), such as disk memory.Above-mentioned memorizer 4000 is used for storing batch processing
Code, above-mentioned input equipment 1000, outut device 2000 and processor 3000 are used for calling memorizer 4000
The program code of middle storage, performs to operate as follows:
Above-mentioned processor 3000, is used for:
When the fingerprint recognition module of user's touch terminal, described fingerprint recognition module is utilized to gather multiple electric capacity
Value；
Binaryzation fingerprint image is generated according to the plurality of capacitance；
Described binaryzation fingerprint image is mated with preset fingerprint template；
When described binaryzation fingerprint image is with described preset fingerprint template matching success, described terminal is carried out
Unlock.
Alternatively, above-mentioned processor 3000 generates binaryzation fingerprint image according to the plurality of capacitance, including:
The plurality of capacitance is generated original fingerprint image；
Described original fingerprint image is carried out binary conversion treatment, obtains binaryzation fingerprint image.
Alternatively, above-mentioned processor 3000 carries out binary conversion treatment to described original fingerprint image, including:
Described original fingerprint image is divided into multiple region；
Determine that first object region and feature point number that in the plurality of region, feature point number is most are minimum
Second target area；
By corresponding with described second target area for the described first object region ash in described original fingerprint image
Degree average is as binary-state threshold；
According to described binary-state threshold, described original fingerprint image is carried out binary conversion treatment.
Alternatively, above-mentioned processor 3000 generates binaryzation fingerprint image according to the plurality of capacitance, including:
The plurality of capacitance is carried out binary conversion treatment；
Multiple capacitances after described binary conversion treatment are generated binaryzation fingerprint image.
Alternatively, described binaryzation fingerprint image is mated by above-mentioned processor 3000 with preset fingerprint template
Coupling, including:
The fisrt feature of described binaryzation fingerprint image is extracted according to predetermined manner；
Preset fingerprint template is carried out binary conversion treatment, obtains binaryzation preset fingerprint template；
The second feature of described binaryzation preset fingerprint template is extracted according to described predetermined manner；
Described fisrt feature is mated with described second feature, and in described fisrt feature and described second
During characteristic matching success, described terminal is unlocked.
Described include utilizing described fingerprint recognition module to gather multiple capacitances before, also particularly useful for:
Determine the touch scope of described fingerprint recognition module, and in the range of described touch, gather multiple capacitance.
Fig. 5 is illustrated that the block diagram of the part-structure of the mobile phone relevant to the terminal of embodiment of the present invention offer.
With reference to Fig. 5, mobile phone includes: radio frequency (Radio Frequency, RF) circuit 510, memorizer 520, defeated
Enter unit 530, display unit 540, sensor 550, voicefrequency circuit 560, Wireless Fidelity (Wireless
Fidelity, WiFi) module 570, the parts such as processor 580 and power supply 590.Those skilled in the art
It is appreciated that the handset structure shown in Fig. 5 is not intended that the restriction to mobile phone, can include than diagram more
Many or less parts, or combine some parts, or different parts are arranged.
Below in conjunction with Fig. 5 each component parts of mobile phone carried out concrete introduction:
RF circuit 510 can be used for receiving and sending messages or in communication process, the reception of signal and transmission, especially,
After the downlink information of base station is received, process to processor 580；It addition, data up for design are sent
To base station.Generally, RF circuit 510 include but not limited to antenna, at least one amplifier, transceiver,
Bonder, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..Additionally, RF
Circuit 510 can also be communicated with network and other equipment by radio communication.Above-mentioned radio communication can use
Arbitrary communication standard or agreement, include but not limited to global system for mobile communications (Global System of
Mobile communication, GSM), general packet radio service (General Packet Radio
Service, GPRS), CDMA (Code Division Multiple Access, CDMA), broadband
CDMA (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long
Term Evolution, LTE), Email, Short Message Service (Short Messaging Service,
SMS) etc..
Memorizer 520 can be used for storing software program and module, and processor 580 is stored in by operation
The software program of reservoir 520 and module, thus perform the application of various functions and the data process of mobile phone.
Memorizer 520 can mainly include storing program area and storage data field, and wherein, storage program area can store behaviour
Make the application program (such as sound-playing function, image player function etc.) needed for system, at least one function
Deng；Storage data field can store data (the such as voice data, phone directory that the use according to mobile phone is created
Deng) etc..Additionally, memorizer 520 can include high-speed random access memory, it is also possible to include non-volatile
Property memorizer, for example, at least one disk memory, flush memory device or other volatile solid-state
Part.
Input block 530 can be used for receiving numeral or the character information of input, and produces the user with mobile phone
Arrange and function controls relevant key signals input.Specifically, input block 530 can include contact panel
531 and other input equipments 532.Contact panel 531, also referred to as touch screen, can collect user thereon
Or neighbouring touch operation (such as user uses any applicable object such as finger, stylus or adnexa at touch-control
Operation on panel 531 or near contact panel 531), and drive corresponding according to formula set in advance
Attachment means.Optionally, contact panel 531 can include touch detecting apparatus and two portions of touch controller
Point.Wherein, the touch orientation of touch detecting apparatus detection user, and detect the signal that touch operation brings,
Transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and will
It is converted into contact coordinate, then gives processor 580, and can receive order that processor 580 sends in addition
Perform.Furthermore, it is possible to use the polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave to realize
Contact panel 531.Except contact panel 531, input block 530 can also include other input equipments
532.Specifically, other input equipments 532 can include but not limited to physical keyboard, function key (such as sound
Amount controls button, switch key etc.), trace ball, mouse, one or more in action bars etc..
Display unit 540 can be used for showing the information inputted by user or the information being supplied to user and mobile phone
Various menus.Display unit 540 can include display floater 541, optionally, can use liquid crystal display
(Liquid Crystal Display, LCD), Organic Light Emitting Diode (Organic Light-Emitting Diode,
Etc. OLED) form configures display floater 541.Further, contact panel 531 can cover display floater
541, when contact panel 531 detects thereon or after neighbouring touch operation, send to processor 580 with
Determine the type of touch event, with preprocessor 580 according to the type of touch event on display floater 541
Corresponding visual output is provided.Although in Figure 5, contact panel 531 and display floater 541 are as two
Individual independent parts realize input and the input function of mobile phone, but in some embodiments it is possible to will touch
Control panel 531 is integrated with display floater 541 and realizes input and the output function of mobile phone.
Mobile phone may also include at least one sensor 550, such as optical sensor, motion sensor and other
Sensor.Specifically, optical sensor can include ambient light sensor and proximity transducer, wherein, ambient light
Sensor can regulate the brightness of display floater 541 according to the light and shade of ambient light, and proximity transducer can be at hands
When machine moves in one's ear, close display floater 541 and/or backlight.As the one of motion sensor, accelerate
Flowmeter sensor can detect the size of (generally three axles) acceleration in all directions, can detect that weight time static
The size of power and direction, can be used for identify mobile phone attitude application (such as horizontal/vertical screen switching, dependent game,
Magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；Also may be used as mobile phone
Other sensors such as the gyroscope of configuration, barometer, drimeter, thermometer, infrared ray sensor, at this
Repeat no more.
Voicefrequency circuit 560, speaker 561, microphone 562 can provide the audio frequency between user and mobile phone to connect
Mouthful.The signal of telecommunication after the voice data conversion that voicefrequency circuit 560 can will receive, is transferred to speaker 561,
Acoustical signal output is converted to by speaker 561；On the other hand, the acoustical signal that microphone 562 will be collected
Be converted to the signal of telecommunication, voicefrequency circuit 560 after receiving, be converted to voice data, then by voice data output
After reason device 580 processes, through RF circuit 510 to be sent to such as another mobile phone, or voice data is exported
To memorizer 520 to process further.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user to receive and dispatch by WiFi module 570
Email, browsing webpage and access streaming video etc., it has provided the user wireless broadband internet and has visited
Ask.Although Fig. 5 shows WiFi module 570, but it is understood that, itself and be not belonging to mobile phone must
Must constitute, can omit in not changing the scope of essence of invention as required completely.
Processor 580 is the control centre of mobile phone, utilizes various interface and the whole mobile phone of connection each
Part, is stored in the software program in memorizer 520 and/or module by running or performing, and calls and deposit
Storage data in memorizer 520, perform the various functions of mobile phone and process data, thus carrying out mobile phone
Integral monitoring.Optionally, processor 580 can include one or more processing unit；Preferably, processor
580 can integrated application processor and modem processor, wherein, application processor mainly process operation system
System, user interface and application program etc., modem processor mainly processes radio communication.May be appreciated
It is that above-mentioned modem processor can not also be integrated in processor 580.
Mobile phone also includes the power supply 590 (such as battery) powered to all parts, it is preferred that power supply can lead to
Cross power-supply management system logically contiguous with processor 580, thus realize management by power-supply management system and fill
The functions such as electricity, electric discharge and power managed.
Although not shown, mobile phone can also include photographic head, bluetooth module etc., does not repeats them here.
In previous embodiment, each step method flow process can structure based on this terminal realize.Wherein sensor
550 or contact panel 531 can use as fingerprint collecting equipment.
It should be noted that in above-mentioned terminal embodiment, included unit is according to function logic
Carry out dividing, but be not limited to above-mentioned division, as long as being capable of corresponding function；Separately
Outward, the specific name of each functional unit also only to facilitate mutually distinguish, is not limited to the present invention's
Protection domain.
It addition, one of ordinary skill in the art will appreciate that the whole or portion realized in above-mentioned each method embodiment
The program that can be by step by step completes to instruct relevant hardware, and corresponding program can be stored in a kind of meter
In calculation machine readable storage medium storing program for executing, storage medium mentioned above can be read only memory, disk or CD
Deng.
These are only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, can be light in the technical scope that the embodiment of the present invention discloses
The change being readily conceivable that or replacement, all should contain within protection scope of the present invention.Therefore, the guarantor of the present invention
The scope of protecting should be as the criterion with scope of the claims.
Concrete, the terminal introduced in the embodiment of the present invention can be implemented the present invention and combine what Fig. 1, Fig. 2 introduced
Part or all of flow process in unlocked by fingerprint embodiment of the method.
Module in all embodiments of the invention or submodule, can pass through universal integrated circuit, such as CPU
(Central Processing Unit, central processing unit), or by ASIC (Application Specific
Integrated Circuit, special IC) realize.
Step in embodiment of the present invention method can carry out order according to actual needs and adjust, merges and delete.
Unit in embodiment of the present invention terminal can merge according to actual needs, divides and delete.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method,
Can be by computer program and complete to instruct relevant hardware, described program can be stored in a calculating
In machine read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.
Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory,
Or random access memory (Random Access Memory, be called for short RAM) etc. ROM).
Above disclosed be only present pre-ferred embodiments, certainly can not with this limit the present invention it
Interest field, the equivalent variations therefore made according to the claims in the present invention, still belong to the scope that the present invention is contained.
The embodiment of the present invention also provides for a kind of computer-readable storage medium, and wherein, this computer-readable storage medium can be deposited
Containing program, this program includes any one unlocked by fingerprint method described in said method embodiment when performing
Part or all of step.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment the most in detail
The part stated, may refer to the associated description of other embodiments.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore it is all stated
For a series of combination of actions, but those skilled in the art should know, the present invention is not by described
The restriction of sequence of movement, because according to the present invention, some step can use other orders or carry out simultaneously.
Secondly, those skilled in the art also should know, embodiment described in this description belongs to be preferable to carry out
Example, scope necessary to involved action and the module not necessarily present invention.
Claims (13)
1. a unlocked by fingerprint method, it is characterised in that including:
When the fingerprint recognition module of user's touch terminal, described fingerprint recognition module is utilized to gather multiple electric capacity
Value；
Binaryzation fingerprint image is generated according to the plurality of capacitance；
Described binaryzation fingerprint image is mated with preset fingerprint template；
When described binaryzation fingerprint image is with described preset fingerprint template matching success, described terminal is carried out
Unlock.
Method the most according to claim 1, it is characterised in that described raw according to the plurality of capacitance
Become binaryzation fingerprint image, including:
The plurality of capacitance is generated original fingerprint image；
Described original fingerprint image is carried out binary conversion treatment, obtains binaryzation fingerprint image.
Method the most according to claim 2, it is characterised in that described described original fingerprint image is entered
Row binary conversion treatment, including:
Described original fingerprint image is divided into multiple region；
Determine that first object region and feature point number that in the plurality of region, feature point number is most are minimum
Second target area；
By corresponding with described second target area for the described first object region ash in described original fingerprint image
Degree average is as binary-state threshold；
According to described binary-state threshold, described original fingerprint image is carried out binary conversion treatment.
Method the most according to claim 1, it is characterised in that described raw according to the plurality of capacitance
Become binaryzation fingerprint image, including:
The plurality of capacitance is carried out binary conversion treatment；
Multiple capacitances after described binary conversion treatment are generated binaryzation fingerprint image.
5. according to the method described in any one of Claims 1-4, it is characterised in that described by described two-value
Change fingerprint image and carry out matches with preset fingerprint template, including:
The fisrt feature of described binaryzation fingerprint image is extracted according to predetermined manner；
Preset fingerprint template is carried out binary conversion treatment, obtains binaryzation preset fingerprint template；
The second feature of described binaryzation preset fingerprint template is extracted according to described predetermined manner；
Described fisrt feature is mated with described second feature, and in described fisrt feature and described second
During characteristic matching success, described terminal is unlocked.
6. according to the method described in any one of Claims 1-4, it is characterised in that described utilize described finger
Before stricture of vagina identification module gathers multiple capacitances, described method also includes:
Determine the touch scope of described fingerprint recognition module, and in the range of described touch, gather multiple capacitance.
7. a terminal, it is characterised in that including:
Collecting unit, for when the fingerprint recognition module of user's touch terminal, utilizes described fingerprint recognition mould
Group gathers multiple capacitances；
Signal generating unit, generates binaryzation fingerprint for the plurality of capacitance gathered according to described collecting unit
Image；
Matching unit, for the described binaryzation fingerprint image and the preset fingerprint mould that described signal generating unit are generated
Plate mates；
Solve lock unit, be that described binaryzation fingerprint image is with described for the matching result at described matching unit
During preset fingerprint template matching success, described terminal is unlocked.
Terminal the most according to claim 7, it is characterised in that described signal generating unit includes:
First generation module, generates original fingerprint for the plurality of capacitance gathered by described collecting unit
Image；
First processing module, carries out two for the described original fingerprint image generating described first generation module
Value processes, and obtains binaryzation fingerprint image.
Terminal the most according to claim 8, it is characterised in that described first processing module includes:
Divide module, for described original fingerprint image is divided into multiple region；
First determines module, feature point number in the plurality of region determining described division Module Division
Most first object regions and minimum the second target area of feature point number；
Second determines module, for determining described first object region that module determines and described by described first
The corresponding gray average in described original fingerprint image in second target area is as binary-state threshold；
According to second, second processing module, for determining that described binary-state threshold that module determines is to described original
Fingerprint image carries out binary conversion treatment.
Terminal the most according to claim 7, it is characterised in that described signal generating unit includes:
3rd processing module, is carried out at binaryzation for the plurality of capacitance gathering described collecting unit
Reason；
Second generation module, for generating the multiple capacitances after described 3rd processing module binary conversion treatment
Binaryzation fingerprint image.
11. according to the terminal described in any one of claim 7 to 10, it is characterised in that described matching unit
Including:
Extraction module, for extracting, according to predetermined manner, the described binaryzation fingerprint image that described signal generating unit generates
The fisrt feature of picture；
Fourth processing module, for preset fingerprint template is carried out binary conversion treatment, obtains binaryzation and presets finger
Stricture of vagina template；
Described extraction module also particularly useful for:
The second feature of described binaryzation preset fingerprint template is extracted according to described predetermined manner；
Matching module, for mating described fisrt feature with described second feature, and in described coupling
The matching result of module be described fisrt feature with described second feature the match is successful time, by described solution lock unit
Described terminal is unlocked.
12. according to the terminal described in any one of claim 7 to 10, it is characterised in that described terminal is also wrapped
Include:
Determine unit, for determining the touch scope of described fingerprint recognition module, and by described collecting unit profit
In the range of described touch, multiple capacitance is gathered with described fingerprint recognition module.
13. 1 kinds of terminals, it is characterised in that including:
Processor, memorizer, communication interface, fingerprint recognition module and communication bus, described processor, institute
State memorizer, described fingerprint recognition module and described communication interface connected by described communication bus and complete phase
Communication between Hu；
Described memorizer storage has executable program code, described fingerprint recognition module to be used for obtaining fingerprint image,
Described communication interface is used for radio communication；
Described processor, for calling the described executable program code in described memorizer, performs right such as and wants
Seek the method described in 1-6 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817109.8A CN107622235B (en) | 2016-05-24 | 2016-05-24 | Fingerprint unlocking method and related product |
| CN201610352045.4A CN106022047B (en) | 2016-05-24 | 2016-05-24 | A kind of unlocked by fingerprint method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352045.4A CN106022047B (en) | 2016-05-24 | 2016-05-24 | A kind of unlocked by fingerprint method and terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710817109.8A Division CN107622235B (en) | 2016-05-24 | 2016-05-24 | Fingerprint unlocking method and related product |
Publications (2)
| Publication Number | Publication Date |
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| CN106022047A true CN106022047A (en) | 2016-10-12 |
| CN106022047B CN106022047B (en) | 2017-10-24 |
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| CN201710817109.8A Active CN107622235B (en) | 2016-05-24 | 2016-05-24 | Fingerprint unlocking method and related product |
| CN201610352045.4A Expired - Fee Related CN106022047B (en) | 2016-05-24 | 2016-05-24 | A kind of unlocked by fingerprint method and terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710817109.8A Active CN107622235B (en) | 2016-05-24 | 2016-05-24 | Fingerprint unlocking method and related product |
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| TWI663552B (en) * | 2017-11-30 | 2019-06-21 | 大陸商北京集創北方科技股份有限公司 | Low-power full-screen fingerprint detection method and fingerprint detection system using the same |
| CN110199295A (en) * | 2019-04-04 | 2019-09-03 | 深圳市汇顶科技股份有限公司 | The method, apparatus and electronic equipment of fingerprint recognition |
| CN112199049A (en) * | 2020-10-22 | 2021-01-08 | Tcl通讯（宁波）有限公司 | Fingerprint storage method and device and terminal |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107622235A (en) | 2018-01-23 |
| CN107622235B (en) | 2021-01-12 |
| CN106022047B (en) | 2017-10-24 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20171024 |