CN106446775A - Fingerprint identification method and device, and electronic equipment - Google Patents
Fingerprint identification method and device, and electronic equipment Download PDFInfo
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- CN106446775A CN106446775A CN201610739705.4A CN201610739705A CN106446775A CN 106446775 A CN106446775 A CN 106446775A CN 201610739705 A CN201610739705 A CN 201610739705A CN 106446775 A CN106446775 A CN 106446775A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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Abstract
The invention puts forward a fingerprint identification method and device, and electronic equipment. The method comprises the following steps of: before the finger of user touches a fingerprint identification component, collecting a first image; when the finger of the user slightly touches the fingerprint identification component, collecting the second image of the finger; after the finger of the user heavily touches the fingerprint identification component and the finger of the user leaves, collecting a third image; and according to the first image, the second image and the third image, generating a fourth image used for fingerprint identification. Through the fingerprint identification method and device, and the electronic equipment provided by the invention, an impurity image in a fingerprint image to be identified can be effectively removed during fingerprint identification, only the clear fingerprint image is identified, so that fingerprint identification accuracy is improved, and user experience is improved.
Description
Technical field
The present invention relates to field of biological recognition, particularly relate to a kind of fingerprint identification method, device and electronic equipment.
Background technology
Everyone fingerprint is unique, and almost constant throughout one's life, and based on uniqueness and the stability of fingerprint, fingerprint is known
Other technology is widely used in identity validation, and obtains in fields such as work attendance, gate inhibition, information security, mobile terminal, computer applications
To developing rapidly.
The fingerprint image of same user is mainly mapped and is identified, to confirm identity, will gather by correlation technique
To fingerprint image and the fingerprint image prestoring contrast, verify its identity.
But, the fingerprint of same user also there will be difference in different situations, such as, when finger gets wet or perspires, refer to
Print image is smudgy, not easy to identify so that even the fingerprint image of same user, be still difficult to identity validation, uses
It is poor that family is experienced.
Content of the invention
It is contemplated that at least solve one of above-mentioned technical problem.
To this end, the first of the present invention purpose is to propose a kind of fingerprint identification method, it is achieved that when fingerprint recognition, can
With effective impurity image removed in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves finger
The degree of accuracy of line identification, improves Consumer's Experience.
Second object of the present invention is to propose a kind of fingerprint identification device.
Third object of the present invention is to propose a kind of electronic equipment.
Fourth object of the present invention is to propose another kind of electronic equipment.
To achieve these goals, first aspect present invention embodiment proposes a kind of fingerprint identification method, including following step
Suddenly：Before user's finger touches fingerprint recognition assembly, gather the first image；Touch described fingerprint recognition assembly at user's finger
When, gather the second image of described finger；Heavily touch described fingerprint recognition assembly at user's finger and described user's finger leaves
After, gather the 3rd image；According to described first image, the second image and the 3rd image, generate the 4th figure for fingerprint recognition
Picture.
The fingerprint identification method that the present embodiment proposes, first touches before fingerprint recognition assembly at user's finger, gathers the
One image；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Then user
After finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gather the 3rd image；Finally according to described first figure
Picture, the second image and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, permissible
Effectively remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint
The degree of accuracy identifying, improves Consumer's Experience.
To achieve these goals, second aspect present invention embodiment proposes a kind of fingerprint identification device, including：First adopts
Collection module, before touching fingerprint recognition assembly at user's finger, gathers the first image；Second acquisition module, for
When family finger touches described fingerprint recognition assembly, gather the second image of described finger；3rd acquisition module, at user's hand
After referring to that heavily tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Processing module, for according to institute
State the first image, the second image and the 3rd image, generate the 4th image for fingerprint recognition.
The fingerprint identification device that the present embodiment provides, first touches before fingerprint recognition assembly at user's finger, gathers the
One image；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's hand
After referring to that heavily tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first figure
Picture, the second image and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, permissible
Effectively remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint
The degree of accuracy identifying, improves Consumer's Experience.
To achieve these goals, third aspect present invention embodiment proposes a kind of electronic equipment, it is characterised in that bag
Include：Fingerprint identification device as described in second aspect.
The electronic equipment of the embodiment of the present application, first before user's finger touches fingerprint recognition assembly, gathers the first figure
Picture；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's finger weight
After tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first image,
Two images and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, can be effective
Remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint recognition
The degree of accuracy, improve Consumer's Experience.
To achieve these goals, fourth aspect present invention embodiment proposes a kind of electronic equipment, including with the next one
Or multiple assembly：Circuit board, housing, processor, memory, power circuit；Wherein, described circuit board is placed in described housing and encloses
The interior volume becoming, described processor and described memory are arranged on described circuit board；Described power circuit, for for described
Each circuit of electronic equipment or device are powered；Described memory is used for storing executable program code；Described processor passes through
The executable program code reading in described memory storage runs the corresponding program with described executable program code, with
In execution following steps：Before user's finger touches fingerprint recognition assembly, gather the first image；Touch described at user's finger
During fingerprint recognition assembly, gather the second image of described finger；Heavily touch described fingerprint recognition assembly and described use at user's finger
After family finger leaves, gather the 3rd image；According to described first image, the second image and the 3rd image, generate and know for fingerprint
Other 4th image.
The electronic equipment of the embodiment of the present application, first before user's finger touches fingerprint recognition assembly, gathers the first figure
Picture；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's finger weight
After tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first image,
Two images and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, can be effective
Remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint recognition
The degree of accuracy, improve Consumer's Experience.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The present invention above-mentioned and/or that add aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obvious and easy to understand, wherein,
Fig. 1 is the flow chart of fingerprint identification method according to an embodiment of the invention；
Fig. 2 is the flow chart of fingerprint identification method in accordance with another embodiment of the present invention；
Fig. 3 is the structure chart of fingerprint identification device according to an embodiment of the invention；
Fig. 4 is the structure chart of fingerprint identification device in accordance with another embodiment of the present invention；
Fig. 5 is the structure chart of electronic equipment according to an embodiment of the invention；
Fig. 6 is the structure chart of electronic equipment in accordance with another embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.On the contrary, originally
All changes in the range of spirit that inventive embodiment includes falling into attached claims and intension, modification and equivalent
Thing.
Below with reference to the accompanying drawings fingerprint identification method according to embodiments of the present invention, device and electronic equipment are described.
Fig. 1 is the flow chart of fingerprint identification method according to an embodiment of the invention.
As it is shown in figure 1, fingerprint identification method comprises the following steps.
Step 101, before user's finger touches fingerprint recognition assembly, gathers the first image.
Concrete, the fingerprint identification method of the present embodiment offer, the fingerprint recognition that can be provided by the embodiment of the present invention fills
Put execution.Wherein, fingerprint identification device can be configured in any terminal that can carry out fingerprint recognition, such as intelligence hand
Machine, panel computer, personal digital assistant, e-book etc..
In an embodiment of the present invention, before user's finger touches fingerprint recognition assembly, fingerprint recognition assembly is not deposited
Need to gather the finger of fingerprint image, now gather the first image.And whether exist on fingerprint recognition assembly and need collection to refer to
The finger of print image, it is possible to use fingerprint recognition assemblies monitor ambient pressure value, then presets with first according to ambient pressure value
The comparative result of value judge, wherein, ambient pressure value is the pressure size being pressed against on fingerprint recognition assembly, and first is pre-
If value can be preset by the plug-in of fingerprint identification device, or, it is also possible to be configured by user, this do not made
Limit.
For example, when fingerprint recognition assemblies monitor to ambient pressure value is not more than the value that first presets, fingerprint recognition is represented
There is not the finger needing to gather fingerprint image on assembly, i.e. user does not also touch fingerprint recognition assembly, now gathers first
Image, the first image is the impurity image of fingerprint recognition assembly itself.Otherwise, when the value that ambient pressure value is preset more than first
When, representing on fingerprint recognition assembly, there is the finger needing to gather fingerprint image, i.e. user's finger is touching fingerprint recognition group
Part, now carries out step 102.
It should be noted that in embodiments of the present invention, owing to needs are by fingerprint recognition assemblies monitor ambient pressure value,
And compare with the first value preset, and then judge on fingerprint recognition assembly, whether there is the hand needing to gather fingerprint image
Refer to, and gather image, therefore, in fingerprint recognition assembly, such as fingerprint sensor, pressure elements, equipment component can be included
Deng the assembly for monitoring ambient pressure value and finger print data.Wherein, fingerprint sensor can be for from appearance condenser type, mutual tolerance electric capacity
Formula, ultrasonic type, and optical profile type principle fingerprint sensor etc., it is used for monitoring finger print data；Pressure elements can be piezoelectricity
Material membrane or pressure sensor etc., be used for monitoring pressure；Equipment component can be pottery, glass, sprayed on material, pet material
Material, sapphire material etc..
When implementing, it is possible to use the fingerprint sensor monitoring finger print data in fingerprint recognition assembly, fingerprint is utilized to know
Pressure elements monitoring ambient pressure value in other assembly, is not more than the first value preset when pressure elements monitors ambient pressure value
When, i.e. before user's finger touches fingerprint recognition assembly, fingerprint sensor gathers the first image.
In addition, within a period of time that user's finger touches before fingerprint recognition assembly, if fingerprint recognition assembly is uninterrupted
Repeated acquisition fingerprint image, the waste of resource can be caused.Therefore, a kind of possible way of realization in the embodiment of the present invention
In, described touch before fingerprint recognition module at user's finger, gather the first image and exist, including：
Judge whether current time user's finger touches fingerprint recognition assembly；
If nothing, then gather the image of current time fingerprint recognition assembly；
After default time interval, return execution is described judges whether current time user's finger touches fingerprint recognition group
The operation of part, and it by the image of the fingerprint recognition assembly of up-to-date acquisition, is defined as the first image.
Wherein, the length of the time interval preset, can be arranged as required to, be such as 1 minute (min), 3min, 5min
Deng, can be preset by the plug-in of fingerprint identification device, or, it is also possible to it is configured by user, this is not limited
System.By at predetermined intervals, repeat to obtain the first image, it is to avoid the waste of resource.
It is understood that within a period of time, if user never has touches fingerprint recognition assembly, then can be to preset
Time interval, repeat to obtain multiple image, and the first image of only up-to-date acquisition, can reflect that fingerprint recognition assembly is up-to-date
Impurity image, therefore, in a kind of possible way of realization of the embodiment of the present invention, fingerprint identification device, often obtain once
After the image of fingerprint recognition assembly, all image-erasings by last time acquisition, preserve the up-to-date image of fingerprint recognition assembly all the time
It is the first image.By the renewal of the first image, save memory space, it is ensured that the accuracy of view data.
Step 102, when user's finger touches described fingerprint recognition assembly, gathers the second image of described finger.
In embodiments of the present invention, whether user's finger touches fingerprint recognition assembly, can be by judging fingerprint recognition group
The force value that part bears determines, such as when the value that fingerprint recognition assemblies monitor ambient pressure value is preset less than second, represents
User's finger is touching fingerprint recognition assembly, now gathers the second image of finger.Wherein, the second value preset can be by referring to
The plug-in of line identification device presets, or, it is also possible to it is configured by user, this is not restricted, and second is pre-
If value more than first preset value.
When implementing, when needs fingerprint recognition, finger is pressed against on fingerprint recognition assembly by user, refers to gather
Line.After user is pressed against finger on fingerprint recognition assembly, fingerprint recognition assemblies monitor to ambient pressure value is pre-more than first
If value and less than second preset value when, gather the second image.Wherein, the second image comprises the miscellaneous of fingerprint recognition assembly itself
Matter, finger print data and sweat are dirty.
Further, since the ambient pressure on fingerprint recognition assembly be probably user other positions in addition to finger unconscious by
Pressure produces, or fingerprint recognition assembly contacts generation with other equipment, now, fingerprint recognition assembly does not need
Identify the finger of fingerprint, although i.e. fingerprint recognition assemblies monitor to ambient pressure value be possible to the value and little preset more than first
In the second value preset, but fingerprint recognition assembly can not monitor finger print data.Therefore, fingerprint recognition assemblies monitor is to the external world
The force value value default more than first and the value preset less than second, and when monitoring finger print data, just gather the second image.
It is understood that when the value that fingerprint recognition assemblies monitor ambient pressure value is preset more than or equal to second, gather
To fingerprint image may be not easy to identify owing to finger sweat increases the weight of, or owing to pressure is excessive and deform, and not easy to identify, because of
This, in the present embodiment, before the value that extraneous force value is preset more than second, i.e. user's finger touches described fingerprint recognition assembly
When, just gather the second image, to avoid in the second image finger print data excessive and deform due to pressure as far as possible.
Step 103, after user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gathers the 3rd
Image.
Concrete, fingerprint recognition assemblies monitor to the ambient pressure value value default more than second, represent that user's finger is heavily tactile
Fingerprint recognition assembly, now, can gather the 3rd image after user's finger leaves, and image now is that user's finger leaves finger
Line recognizer component, the dirty image of sweat of fingerprint recognition assembly surface residual.
Step 104, according to described first image, the second image and the 3rd image, generates the 4th figure for fingerprint recognition
Picture.
When implementing, due to the second image, to comprise the impurity of fingerprint recognition assembly own, finger print data and sweat dirty etc.,
First image is the impurity image of fingerprint recognition assembly itself, and the 3rd image is that finger leaves fingerprint recognition assembly, fingerprint recognition
The dirty image of sweat of assembly surface residual, there is certain coincidence relation in three images, therefore, in embodiments of the present invention,
The 4th can be generated by carrying out duplicate removal process to each same pixel in described second image and the first image and the 3rd image
Image.
Concrete, can calculate in described second image and the first image and the 3rd image, the pixel of each same pixel
The difference of value, according to the difference of all pixels, generates the 4th image, by this method, gained the 4th picture quality preferably,
Contrast is higher.
When specifically carrying out fingerprint recognition, the 4th image and the fingerprint image storing are compared, if both are by mistake
In the range of difference unanimously, then fingerprint recognition result is successful, can confirm that user identity, and user can be carried out in authority afterwards
Operation, such as unblock, payment etc., otherwise, fingerprint recognition result is failed, refuses associative operation.
The fingerprint identification method that the present embodiment proposes, first touches before fingerprint recognition assembly at user's finger, gathers the
One image；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's hand
After referring to that heavily tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first figure
Picture, the second image and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, permissible
Effectively remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint
The degree of accuracy identifying, improves Consumer's Experience.
By above-mentioned analysis, the first image can be gathered before user's finger touches fingerprint recognition assembly；With
When family finger touches described fingerprint recognition assembly, gather the second image of described finger；Heavily touch described fingerprint at user's finger to know
After other assembly and described user's finger leave, gather the 3rd image.Wherein the second image is that user's finger touches fingerprint recognition group
Fingerprint image during part, if the second image is difficult to, can generate according to described first image, the second image and the 3rd image
For the 4th image of fingerprint recognition, according to the identity of the 4th image confirming user.But, the fingerprint image of not all user
As being all impalpable, sometimes can directly confirm user identity according to the fingerprint image obtaining, below in conjunction with Fig. 2, to upper
The situation of stating is specifically described.
Fig. 2 is the flow chart of fingerprint identification method in accordance with another embodiment of the present invention.
As in figure 2 it is shown, fingerprint identification method comprises the following steps.
Step 201, before user's finger touches fingerprint recognition assembly, gathers the first image.
Step 202, when user's finger touches described fingerprint recognition assembly, gathers the second image of described finger.
Wherein, above-mentioned steps 201-step 202 implement process and principle, be referred to step in above-described embodiment
The detailed description of 101-step 102, here is omitted.
Step 203, it is judged that whether comprise blurred picture in described second image, if so, step 205, otherwise, perform
Step 204.
Step 204, generates the 5th image to be identified according to described first image and the second image.
It is understood that after gathering the second image, it is thus necessary to determine that the second image comprises blurred picture, if the second image
In do not comprise blurred picture, then show the second picture quality preferably, contrast higher, now the second image comprise finger print data and
The impurity of fingerprint recognition assembly own, other comprising are dirty seldom, directly can generate according to the first image and the second image and treat
The 5th image identifying, and then carries out identity validation, without gathering the 3rd figure described in above-described embodiment step 103 again
Picture, directly generates the 5th image to be identified according to described first image and the second image, can improve the accurate of fingerprint recognition
Degree, accelerates the speed of fingerprint recognition.And when comprising blurred picture in the second image, the fingerprint image producing such as the people of hidrosis compares
Fuzzy, in addition to finger print data and the impurity of fingerprint recognition assembly own, comprise is dirty more, not easy to identify, now step
205.
When implementing, have multiple method may determine that in the second image whether comprise blurred picture.For example, according to second
Sharpness of lines information in image, black white contrast information, characteristic point information etc. calculate the quality score of the second image, if matter
Measure point and to be less than certain predetermined threshold value, it is determined that the second image comprises blurred picture.
Step 205, after user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gathers the 3rd
Image.
Step 206, calculates in described second image and the first image and the 3rd image, the pixel value of each same pixel
Difference.
Step 207, according to the difference of all pixels, generates the 4th image.
Step 208, carries out fingerprint recognition to described 4th image.
Wherein, above-mentioned steps 205-step 208 implement process and principle, be referred to step in above-described embodiment
The detailed description of 103-step 104, here is omitted.
The fingerprint identification method that the present embodiment proposes, first touches before fingerprint recognition assembly at user's finger, gathers the
One image；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Judge described
Whether two images comprising blurred picture, if not comprising, then generating to be identified the according to described first image and the second image
Five images；If the second image comprises blurred picture, then heavily touch described fingerprint recognition assembly and described user's finger at user's finger
After leaving, gather the 3rd image；Calculate in described second image and the first image and the 3rd image, the pixel of each same pixel
The difference of value；According to the difference of all pixels, generate the 4th image；Finally fingerprint recognition is carried out to described 4th image.By
This, it is achieved that when fingerprint recognition, can effectively remove the impurity image in fingerprint image to be identified, only to fingerprint image clearly
Picture is identified, thus improves the degree of accuracy of fingerprint recognition, improves Consumer's Experience.
Fig. 3 is the structure chart of fingerprint identification device according to an embodiment of the invention.
As it is shown on figure 3, this fingerprint identification device 30, including：
First acquisition module 31, before touching fingerprint recognition assembly at user's finger, gathers the first image；
Second acquisition module 32, for when user's finger touches described fingerprint recognition assembly, gathers the of described finger
Two images；
3rd acquisition module 33, for heavily touching described fingerprint recognition assembly and described user's finger leaves at user's finger
After, gather the 3rd image；
Processing module 34, for according to described first image, the second image and the 3rd image, generating for fingerprint recognition
4th image.
Wherein, the fingerprint identification device 30 that the present embodiment provides, can be configured in and any can carry out fingerprint recognition
In terminal, such as smart mobile phone, panel computer, personal digital assistant, e-book etc..
In a kind of possible way of realization of the present embodiment, described first acquisition module 31, specifically for：
Judge whether current time user's finger touches fingerprint recognition assembly；
If nothing, then gather the image of current time fingerprint recognition assembly；
After default time interval, return execution is described judges whether current time user's finger touches fingerprint recognition group
The operation of part, and it by the image of the fingerprint recognition assembly of up-to-date acquisition, is defined as the first image.
In the alternatively possible way of realization of the present embodiment, described processing module 34, specifically for：
Calculate in described second image and the first image and the 3rd image, the difference of the pixel value of each same pixel；
According to the difference of all pixels, generate the 4th image.
It it should be noted that the explanation of above-mentioned fingerprint identification method embodiment shown in Fig. 1, is also applied for the present embodiment
The fingerprint identification device providing, here is omitted.
The fingerprint identification device that the present embodiment provides, first touches before fingerprint recognition assembly at user's finger, gathers the
One image；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's hand
After referring to that heavily tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first figure
Picture, the second image and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, permissible
Effectively remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint
The degree of accuracy identifying, improves Consumer's Experience.
Fig. 4 is the structure chart of fingerprint identification device in accordance with another embodiment of the present invention.
As shown in Figure 4, this fingerprint identification device 30, on the basis of shown in Fig. 3, also includes：
Determining module 35, is used for determining in described second image and comprises blurred picture.
It it should be noted that the explanation of above-mentioned fingerprint identification method embodiment shown in Fig. 2, is also applied for the present embodiment
The fingerprint identification device providing, here is omitted.
The fingerprint identification device that the present embodiment proposes, first touches before fingerprint recognition assembly at user's finger, gathers the
One image；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Determine described
Two images comprise blurred picture；Again after user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, adopt
Collect the 3rd image；Finally according to described first image, the second image and the 3rd image, generate the 4th figure for fingerprint recognition
Picture.Hereby it is achieved that when fingerprint recognition, can effectively remove the impurity image in fingerprint image to be identified, only to clearly
Fingerprint image is identified, thus improves the degree of accuracy of fingerprint recognition, improves Consumer's Experience.
Fig. 5 is the structure chart of the electronic equipment of one embodiment of the invention.
As it is shown in figure 5, this electronic equipment 50 includes：
Fingerprint identification device 51.
It it should be noted that the above-mentioned explanation to fingerprint identification method embodiment, is also applied for the electricity that the present embodiment provides
Subset, here is omitted.
The electronic equipment that the present embodiment proposes, first before user's finger touches fingerprint recognition assembly, gathers the first figure
Picture；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's finger weight
After tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first image,
Two images and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, can be effective
Remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint recognition
The degree of accuracy, improve Consumer's Experience.
Fig. 6 is the structure chart of electronic equipment in accordance with another embodiment of the present invention.
Wherein, the type of electronic equipment is a lot, such as can be mobile phone, applause computer, notebook computer and wearable device
Deng this is not construed as limiting by the present embodiment.
As shown in Figure 6, this electronic equipment 60, including：Including following one or more assembly：Housing 61, processor 62, deposit
Reservoir 63, circuit board 64, power circuit 65 and sensor 66；Wherein, circuit board 64 is placed in the interior volume that housing 61 surrounds,
Processor 62 and memory 63 are arranged on circuit board 64；Power circuit 65, is used for each circuit for electronic equipment 60 or device
Part is powered；Memory 63 is used for storing executable program code；Processor 62 is by performing of storing in reading memory 63
Program code runs the corresponding program with executable program code, for performing following steps：
Before user's finger touches fingerprint recognition assembly, gather the first image；
When user's finger touches described fingerprint recognition assembly, gather the second image of described finger；
After user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gather the 3rd image；
According to described first image, the second image and the 3rd image, generate the 4th image for fingerprint recognition.Need
Bright, the aforementioned explanation to fingerprint identification method embodiment is also applied for the electronic equipment of this embodiment, and it realizes former
Reason is similar, and here is omitted.
The electronic equipment of the embodiment of the present application, first before user's finger touches fingerprint recognition assembly, gathers the first figure
Picture；Then, when user's finger touches described fingerprint recognition assembly, the second image of described finger is gathered；Again at user's finger weight
After tactile described fingerprint recognition assembly and described user's finger leave, gather the 3rd image；Finally according to described first image,
Two images and the 3rd image, generate the 4th image for fingerprint recognition.Hereby it is achieved that when fingerprint recognition, can be effective
Remove the impurity image in fingerprint image to be identified, only fingerprint image clearly is identified, thus improves fingerprint recognition
The degree of accuracy, improve Consumer's Experience.
In describing the invention, it is to be understood that term " first ", " second " etc. are not only used for describing purpose, and not
It is understood that as instruction or hint relative importance.In describing the invention, it should be noted that specify unless otherwise clear and definite
And restriction, term " is connected ", " connection " should be interpreted broadly, for example, it may be fixing connect, it is also possible to be to removably connect,
Or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to.For the ordinary skill in the art, above-mentioned term tool in the present invention can be understood with concrete condition
Body implication.Additionally, in describing the invention, unless otherwise stated, " multiple " are meant that two or more.
Any process described otherwise above or method describe and are construed as in flow chart or at this, and expression includes
The module of the code of the executable instruction of one or more steps for realizing specific logical function or process, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function while basic in the way of or in the opposite order, perform function, this should be by the present invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each several part of the present invention can be realized by hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system by storage
Or firmware realizes.For example, if realized with hardware, and the same in another embodiment, available well known in the art under
Any one in row technology or their combination realize：There is the logic gates for realizing logic function to data-signal
Discrete logic, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), on-the-spot
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Specific features, structure, material or the spy that the description of example " or " some examples " etc. means to combine this embodiment or example describes
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiment or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Multiple change, modification, replacement and modification can be carried out to these embodiments in the case of the principle and the objective that depart from the present invention, this
The scope of invention is limited by claim and equivalent thereof.
Claims (10)
1. a fingerprint identification method, it is characterised in that comprise the following steps：
Before user's finger touches fingerprint recognition assembly, gather the first image；
When user's finger touches described fingerprint recognition assembly, gather the second image of described finger；
After user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gather the 3rd image；
According to described first image, the second image and the 3rd image, generate the 4th image for fingerprint recognition.
2. the method for claim 1, it is characterised in that described before user's finger touches fingerprint recognition module, adopts
Collect the first image, including：
Judge whether current time user's finger touches fingerprint recognition assembly；
If nothing, then gather the image of current time fingerprint recognition assembly；
After default time interval, return execution is described judges whether current time user's finger touches fingerprint recognition assembly
Operation, and it by the image of the fingerprint recognition assembly of up-to-date acquisition, is defined as the first image.
3. the method for claim 1, it is characterised in that described according to described first image, the second image and the 3rd figure
Picture, before generating the 4th image for fingerprint recognition, also includes：
Determine in described second image and comprise blurred picture.
4. the method for claim 1, it is characterised in that described according to described first image, the second image and the 3rd figure
Picture, generates the 4th image for fingerprint recognition, including：
Calculate in described second image and the first image and the 3rd image, the difference of the pixel value of each same pixel；
According to the difference of all pixels, generate the 4th image.
5. a fingerprint identification device, it is characterised in that include：
First acquisition module, before touching fingerprint recognition assembly at user's finger, gathers the first image；
Second acquisition module, for when user's finger touches described fingerprint recognition assembly, gathers the second image of described finger；
3rd acquisition module, for after user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gathers
3rd image；
Processing module, for according to described first image, the second image and the 3rd image, generating the 4th figure for fingerprint recognition
Picture.
6. device as claimed in claim 5, it is characterised in that described first acquisition module, specifically for：
Judge whether current time user's finger touches fingerprint recognition assembly；
If nothing, then gather the image of current time fingerprint recognition assembly；
After default time interval, return execution is described judges whether current time user's finger touches fingerprint recognition assembly
Operation, and it by the image of the fingerprint recognition assembly of up-to-date acquisition, is defined as the first image.
7. device as claimed in claim 5, it is characterised in that also include：
Determining module, is used for determining in described second image and comprises blurred picture.
8. device as claimed in claim 5, it is characterised in that described processing module, specifically for：
Calculate in described second image and the first image and the 3rd image, the difference of the pixel value of each same pixel；
According to the difference of all pixels, generate the 4th image.
9. an electronic equipment, it is characterised in that include the fingerprint identification device as described in claim 5-8 is arbitrary.
10. an electronic equipment, it is characterised in that include following one or more assembly：Circuit board, housing, processor, storage
Device, power circuit；Wherein, described circuit board is placed in the interior volume that described housing surrounds, described processor and described storage
Device is arranged on described circuit board；Described power circuit, powers for each circuit or the device for described electronic equipment；Described
Memory is used for storing executable program code；Described processor is by reading the executable program generation of storage in described memory
Code runs the corresponding program with described executable program code, for performing following steps：
Before user's finger touches fingerprint recognition assembly, gather the first image；
When user's finger touches described fingerprint recognition assembly, gather the second image of described finger；
After user's finger heavily touches described fingerprint recognition assembly and described user's finger leaves, gather the 3rd image；
According to described first image, the second image and the 3rd image, generate the 4th image for fingerprint recognition.
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| CN201610739705.4A CN106446775B (en) | 2016-08-26 | 2016-08-26 | A kind of fingerprint identification method, device and electronic equipment |
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| CN201610739705.4A CN106446775B (en) | 2016-08-26 | 2016-08-26 | A kind of fingerprint identification method, device and electronic equipment |
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| CN110414440A (en) * | 2019-07-30 | 2019-11-05 | 中国工商银行股份有限公司 | A kind of fingerprint collecting recognition methods and device |
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