CN109815935A - Electronic device, fingerprint authentication method and Related product - Google Patents
Electronic device, fingerprint authentication method and Related product Download PDFInfo
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Abstract
The embodiment of the present application discloses a kind of electronic device and fingerprint authentication method, and described method includes following steps: acquisition fingerprint image carries out fingerprint authentication to fingerprint image；If fingerprint image verifying n times have not been able to be proved to be successful, reversed fingerprint image is obtained after carrying out reverse process to the fingerprint image；The reversed fingerprint image is subjected to fingerprint authentication, is such as proved to be successful, executes fingerprint authentication Successful Operation.Technical solution provided by the present application has the advantages that fingerprint recognition is with high accuracy.
Description
Technical field
This application involves electronics art fields, and in particular to a kind of electronic device, fingerprint authentication method and Related product.
Background technique
With a large amount of popularization and applications of mobile terminal (such as smart phone), the application that mobile terminal can be supported is increasingly
More, function is stronger and stronger, and smart phone develops towards diversification, personalized direction, becomes indispensable in user's life
Appliance and electronic.
Currently, fingerprints theorem is under optical panel: using the principle of reflection of light, draw out the crestal line and valley line of fingerprint, then with
The image of initial typing is compared.For the finger of fingerprint recognition in different environment, crestal line and valley line are likely to occur variation, this
The precision that sample results in fingerprint recognition reduces, and affects the Experience Degree of user.
Summary of the invention
The embodiment of the present application provides a kind of electronic device, fingerprint authentication method and Related product, to promote fingerprint inspection
The precision of card improves user experience.
In a first aspect, the embodiment of the present application provides a kind of fingerprint authentication method, described method includes following steps:
Fingerprint image is acquired, fingerprint authentication is carried out to fingerprint image；
If fingerprint image verifying n times have not been able to be proved to be successful, obtained reversely after carrying out reverse process to the fingerprint image
Fingerprint image；
The reversed fingerprint image is subjected to fingerprint authentication, is such as proved to be successful, executes fingerprint authentication Successful Operation.
Optionally, reversed fingerprint image is obtained after described pair of fingerprint image progress reverse process to specifically include:
The fingerprint image is handled to obtain the crestal line and valley line of the fingerprint image, the crestal line of fingerprint image is transformed into
The valley line of the fingerprint image is transformed into crestal line and obtains the reversed fingerprint image of the fingerprint image by valley line.
Optionally, reversed fingerprint image is obtained after described pair of fingerprint image progress reverse process to specifically include:
Fingerprint image progress gray proces are obtained into gray-scale fingerprint image, extract all pixels point in gray-scale fingerprint image
Gray value, the gray scale for all pixels point that the gray value of all pixels point by formula 1 is carried out that reversed fingerprint image is calculated
Value；
Reversed gray value=255- gray value formula 1.
Optionally, described that fingerprint image progress fingerprint authentication is specifically included:
Lines screening is carried out to the fingerprint image, obtains a plurality of target fingerprint lines, the fingerprint image includes a plurality of
Fingerprint lines, the mean breadth of each fingerprint lines is in predetermined width range in the target fingerprint lines；
Feature point extraction is carried out to a plurality of target fingerprint lines, obtains fisrt feature point set, the fisrt feature point
Collection includes multiple characteristic points；
Feature extraction is carried out to the preset fingerprint template, obtains second feature point set；
The fisrt feature point set is matched with the second feature point set, matching value is obtained, as matching value is greater than
Success threshold, determination are proved to be successful.
Optionally, the method also includes:
If matching value is less than success threshold, determine whether matching value is in the first preset range, as matching value belongs to first
Preset range executes operation corresponding with the first preset range.
Second aspect, provides a kind of electronic device, and the electronic device includes: processor, display screen and fingerprint authentication dress
It sets, which is characterized in that the fingerprint verifying apparatus is located at the downside of the display screen；
The fingerprint verifying apparatus, for acquiring fingerprint image；
The processor, for carrying out fingerprint authentication to fingerprint image；As fingerprint image verifying n times have not been able to verifying at
Function obtains reversed fingerprint image after carrying out reverse process to the fingerprint image；The reversed fingerprint image is subjected to fingerprint authentication, such as
It is proved to be successful, executes fingerprint authentication Successful Operation.
Optionally, the processor, specifically for the fingerprint image is handled to obtain the fingerprint image crestal line and
The crestal line of fingerprint image is transformed into valley line, the valley line of the fingerprint image is transformed into crestal line and obtains the fingerprint image by valley line
Reversed fingerprint image.
Optionally, the processor is extracted specifically for fingerprint image progress gray proces are obtained gray-scale fingerprint image
The gray value of all pixels point be calculated reversely by formula 1 by the gray value of all pixels point in gray-scale fingerprint image
The gray value of all pixels point of fingerprint image；
Reversed gray value=255- gray value formula 1.
The third aspect provides a kind of electronic device, including processor, memory, communication interface, display screen, fingerprint authentication
Device, and one or more programs, one or more of programs are stored in the memory, and are configured by institute
Processor execution is stated, described program includes the steps that the instruction in the method for executing first aspect.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, wherein above-mentioned computer-readable
Storage medium storage is used for the computer program of electronic data interchange, wherein above-mentioned computer program executes computer such as
Step some or all of described in the embodiment of the present application first aspect method.
5th aspect, the embodiment of the present application provide a kind of computer program product, wherein above-mentioned computer program product
Non-transient computer readable storage medium including storing computer program, above-mentioned computer program are operable to make to calculate
Machine executes the step some or all of as described in the embodiment of the present application first aspect method.The computer program product can be with
For a software installation packet.
As can be seen that technical solution provided by the present application in fingerprint authentication, acquires fingerprint image, if verifying n times are not
After success, fingerprint image progress reverse process is obtained into reversed fingerprint image, reversed fingerprint image is subjected to fingerprint authentication,
In this way in crestal line and reversed valley line, it can also guarantee fingerprint authentication success, improve the success rate of fingerprint authentication.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of electronic device provided by the embodiments of the present application；
Fig. 2 is the flow diagram of fingerprint authentication method provided by the embodiments of the present application；
Fig. 3 is a kind of flow chart of fingerprint authentication method provided by the embodiments of the present application.
Fig. 4 is the structural schematic diagram of electronic device provided by the embodiments of the present application.
Fig. 5 is a kind of electronic device construction schematic diagram provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
The description and claims of this application and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing
Different objects, are not use to describe a particular order.In addition, term " includes " and " having " and their any deformations, it is intended that
It is to cover and non-exclusive includes.Such as contain series of steps or the process, method, system, product or equipment of module do not have
It is defined in listed step or module, but optionally further comprising the step of not listing or module, or optionally also wrap
Include other steps or module intrinsic for these process, methods, product or equipment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Electronic device involved by the embodiment of the present application may include the various handheld devices with wireless communication function,
Mobile unit, wearable device calculate equipment or are connected to other processing equipments and various forms of radio modem
User equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal
Device) etc..For convenience of description, apparatus mentioned above is referred to as electronic device.
It describes in detail below to the embodiment of the present application.
Referring to Fig. 1, Fig. 1 is that the embodiment of the invention provides a kind of structural schematic diagram of electronic device 100, electronics dresses
Setting 100 includes: shell 110, the display screen 120 being set on the shell 110, the mainboard being set in the shell 110
130, processor 140 and memory 150 are provided on mainboard 130, as shown in Figure 1, the electronic device is additionally provided with humidity biography
Sensor 160, camera 170 etc., humidity sensor 160 and camera 170 connect the processor 140, and the processor 140 connects
Display screen 120 is connect, the also included communication module of the electronic device 100, which includes but is not limited to: mobile communication mould
Group, radio frequency system or short-range communication module, wherein
The lower part of above-mentioned display screen 120 is provided with fingerprint verifying apparatus 200, the fingerprint verifying apparatus 200 can be set with
Any position of 120 lower part of display screen, such as shown in Figure 1, positioned at the key position home of display screen 120, it is some its
It, can also be in other positions in his scheme.Above-mentioned fingerprint verifying apparatus 200 can be optical finger print module, certainly in reality
In the application of border, it can also be that other some modules that can pass through the realization fingerprint authentication of display screen 120, the application are not limited to
The concrete form of above-mentioned fingerprint verifying apparatus.
Wherein, the shape size of the mainboard 130 can be the arbitrary size and shape that the electronic device 100 can accommodate
Shape does not do unique restriction herein.
Wherein, processor 140 includes application processor and baseband processor, and processor 140 is the control of electronic device 100
Center is stored in memory by running or executing using the various pieces of various interfaces and the entire electronic device of connection
Software program and/or module in 150, and the data being stored in memory 150 are called, execute each of electronic device 100
Kind function and processing data, to carry out integral monitoring to electronic device 100.Wherein, the main processing operation system of application processor
System, user interface and application program etc., baseband processor mainly handles wireless communication.It is understood that above-mentioned Base-Band Processing
Device can not also be integrated into the processor.
Wherein, memory 150 can be used for storing software program and module, and processor 140 is stored in storage by operation
The software program and module of device 150, thereby executing the various function application and data processing of electronic device 100.Memory
150 can mainly include storing program area and storage data area, wherein storing program area can storage program area, at least one function
Application program needed for energy etc.；Storage data area, which can be stored, uses created data etc. according to electronic device.In addition, storage
Device 150 may include high-speed random access memory, can also include nonvolatile memory, for example, at least a disk storage
Device, flush memory device or other volatile solid-state parts.
Optionally, above-mentioned electronic equipment can also include: input-output circuit, and input-output circuit can be wrapped further
Include sensor.Sensor may include ambient light sensor, the infrared proximity transducer based on light and capacitor, supersonic sensing
Device, touch sensor is (for example, be based on light touch sensor and/or capacitive touch sensors, wherein touch sensor can be with
It is a part of touching display screen, can also be used as a touch sensor arrangement and independently use), acceleration transducer, gravity
Sensor and other sensors etc..
Display screen 120 may include liquid crystal display, organic light-emitting diode (OLED) display screen, electric ink display screen, wait from
Sub- display screen, one or several kinds of combination in the display screen using other display technologies.Display screen may include touch sensing
Device array (that is, display screen can be touching display screen).Touch sensor can be by transparent touch sensor electrode (such as
Tin indium oxide (ITO) electrode) capacitive touch sensors that are formed of array, or can be and formed using other touching techniques
Touch sensor, such as sound wave touch-control, pressure sensible touch, resistive touch, optical touch etc., the embodiment of the present application is with no restriction.
Input-output circuit, which can further include telecommunication circuit, can be used for providing for electronic equipment and external equipment
The ability of communication.Telecommunication circuit may include analog- and digital- input-output interface circuit, and be based on radiofrequency signal and/or light
The radio communication circuit of signal.Radio communication circuit in telecommunication circuit may include radio-frequency transceiver circuitry, power amplifier
Circuit, low-noise amplifier, switch, filter and antenna.For example, the radio communication circuit in telecommunication circuit may include
For supported by emitting and receiving near-field coupling electromagnetic signal near-field communication (near field communication,
NFC circuit).For example, telecommunication circuit may include near-field communication aerial and near-field communication transceiver.Telecommunication circuit can also wrap
Include cellular telephone transceiver and antenna, wireless lan transceiver circuit and antenna etc..
Input-output circuit can further include other input-output units.Input-output unit may include
Button, control stick, click wheel, scroll wheel, touch tablet, keypad, keyboard, camera, light emitting diode and other state instructions
Device etc..
Referring to Fig.2, Fig. 2 provides a kind of method of fingerprint authentication, this method is held by electronic device as shown in Figure 1
Row, this method is as shown in Fig. 2, include the following steps:
Step S201, fingerprint image is acquired, fingerprint authentication is carried out to fingerprint image；
Above-mentioned acquisition fingerprint image can be acquired by the fingerprint authentication module of electronic device, which can be light
Learn fingerprint image.It is above-mentioned that fingerprint image progress fingerprint authentication can refer to this using conventional fingerprint authentication method, the application
The method of line verifying does not limit.
Step S202, such as fingerprint image verifying n times have not been able to be proved to be successful, after carrying out reverse process to the fingerprint image
Obtain reversed fingerprint image；
Above-mentioned n can be the integer more than or equal to 1, preferably n=2.The specific value of the n can be by the producer of electronic device
Sets itself can also be set by the user of electronic device according to the hobby of itself, the application certainly in practical applications
It is not intended to limit the specific value of above-mentioned n, only needs the value range of n for the integer more than or equal to 1.
Step S203, the reversed fingerprint image is subjected to fingerprint authentication, be such as proved to be successful, executed fingerprint authentication and successfully grasp
Make.
Technical solution provided by the present application acquires fingerprint image in fingerprint authentication, if after verifying n times are unsuccessful,
Fingerprint image progress reverse process is obtained into reversed fingerprint image, reversed fingerprint image is subjected to fingerprint authentication, in this way in ridge
When line and reversed valley line, it can also guarantee fingerprint authentication success, improve the success rate of fingerprint authentication.
Optionally, above-mentioned fingerprint authentication Successful Operation includes but is not limited to；It unlocks operation, delivery operation, open encryption app
Operation etc. operation, certain above-mentioned fingerprint authentication Successful Operation can also set fingerprint inspection by user's sets itself, such as user
After demonstrate,proving successfully, it is directly entered the specific webpage of specified app.The application not above-mentioned fingerprint authentication Successful Operation of official post with very little to do it is specific
The form of expression.
Optionally, specific to reversed fingerprint image is obtained after fingerprint image progress reverse process in above-mentioned steps S202
May include:
The fingerprint image is handled to obtain the crestal line and valley line of the fingerprint image, the crestal line of fingerprint image is transformed into
The valley line of the fingerprint image is transformed into crestal line and obtains the reversed fingerprint image of the fingerprint image by valley line.
This technical solution exchanges the crestal line of fingerprint image and valley line, this based on principle be, for fingerprint authentication,
Its fingerprint authentication is verified in template image, which is voluntarily to carry out verifying input to fingerprint by user,
In fingerprint authentication input, usually dry finger, therefore the crestal line of its template image and valley line be not will do it is reversed.
The finger of conventional fingerprint authentication be it is dry, crestal line and valley line be not will do it is reversed, therefore in dry fingerprint inspection
When card, the precision of fingerprint authentication can be relatively high, but under some special screnes, such as moist fingers, at this time fingerprint
Moisture is relatively high, the fingerprint image acquired at this time, it is more likely that crestal line and the reversed situation of valley line occurs, therefore here by crestal line
Exchange with valley line the percent of pass for the verifying that can improve its fingerprint.
It is above-mentioned that the crestal line of fingerprint image is transformed into valley line, the valley line of the fingerprint image is transformed into crestal line and obtains the fingerprint
The specific method that the reversed fingerprint image of image is realized may include:
Fingerprint image progress gray proces are obtained into gray-scale fingerprint image, extract all pixels point in gray-scale fingerprint image
Gray value, all pixels point that the gray value of all pixels point is carried out that reversed fingerprint image is calculated by following formula 1
Gray value.
Reversed gray value=255- gray value formula 1.
Optionally, above-mentioned that fingerprint image progress fingerprint authentication can specifically include:
The fingerprint image is matched with preset fingerprint template, obtains matching value, if matching value is greater than success threshold,
Determination is proved to be successful, otherwise, it determines authentication failed, above-mentioned to match the fingerprint image with preset fingerprint template, is obtained
Matching value may include steps of:
21, lines screening is carried out to the fingerprint image, obtains a plurality of target fingerprint lines, the fingerprint image includes more
Fingerprint lines, the mean breadth of each fingerprint lines is in predetermined width range in the target fingerprint lines；
22, feature point extraction is carried out to a plurality of target fingerprint lines, obtains fisrt feature point set, the fisrt feature
Point set includes multiple characteristic points；
23, feature extraction is carried out to the preset fingerprint template, obtains second feature point set；
24, the fisrt feature point set is matched with the second feature point set, obtains matching value.
Wherein, above-mentioned predetermined width range can be by system default (i.e. producer to set), alternatively, user's self-setting.
Since fingerprint lines width not only varies with each individual, but also under different touch-control dynamics, lines width is also different, therefore, one
Determine that user can be identified using lines width in degree, alternatively, making according to clarity of the fingerprint lines width to fingerprint image
Determine, in this way, improving safety and accuracy of identification.
Optionally, the above method can also execute different operations according to matching value in different ranges, specific as follows:
If the matching value is in the first preset range, the sensing data of the electronic equipment is obtained.
Wherein, above-mentioned first preset range can be by user's self-setting or system default, above-mentioned first preset range
Lower than success threshold, success threshold can be by user's self-setting or system default.Under normal temperature conditions, if fingerprint image with
When matching value between preset fingerprint template is greater than or equal to success threshold, then unlock operation is executed, due under low-temperature condition,
The quality of fingerprint image is deteriorated, and still, if it is the fingerprint of owner, can also have Partial Feature point can be matched success, because
This, the lower limit value of the first preset range can be higher than 0, and upper limit value can be lower than success threshold.In the specific implementation, electronic equipment can be with
The sensing data of the electronic equipment is obtained, sensing data can be following at least one: temperature data, geographical location number
According to, grip etc., it is not limited thereto.For example, in the case where electronic equipment is provided with temperature sensor, sensor number
According to can be temperature data, in another example, in the case where electronic equipment is provided with alignment sensor, sensing data can be ground
Location information is managed, in another example, in the case where the surface of electronic equipment setting is provided with pressure sensor, sensing data can be with
For grip.
Optionally, if method is in the first preset range in the execution matching value, the sensing of the electronic equipment is obtained
Further include following steps during device data:
Whether A1, the detection electronic equipment are in default low-temperature condition；
If A2, the electronic equipment are in default low-temperature condition, the sensor number for obtaining the electronic equipment is executed
According to the step of.
Wherein, above-mentioned default low-temperature condition can be by user's self-setting or system default, for example, default low-temperature condition
Corresponding temperature is (- 10 degrees Celsius, 0 degree Celsius).When electronic equipment is in default low-temperature condition, then acquisition electricity can be executed
Otherwise the step of sensing data of sub- equipment, prompts user to unlock failure.The settable temperature sensor of electronic equipment, is used for
Environment temperature is detected, when environment temperature is in preset temperature range, then can be confirmed that electronic equipment is in default low-temperature condition.
Optionally, above-mentioned steps A1, detects whether the electronic equipment is in default low-temperature condition, it may include following step
It is rapid:
B11, feature extraction is carried out to the fingerprint image, obtains feature point set；
B12, the fingerprint area for determining the fingerprint image；
B13, the characteristic point distribution density that the fingerprint image is determined according to the fingerprint area, the feature point set；
B14, when the characteristic point distribution density is in the second preset range, confirm the electronic equipment be in preset it is low
The step of temperature state.
Wherein, above-mentioned second preset range can be by user's self-setting, alternatively, system default.Having in fingerprint image can
It can not there is only fingerprint lines, it is possible to which there are background images, therefore, can carry out image segmentation to fingerprint image, obtain mesh
Region is marked, i.e., real fingerprint image confirms the area of the target area as fingerprint area, in the specific implementation, electronic equipment
Feature extraction can be carried out to fingerprint image, obtain feature point set, the characteristic point sum that statistical nature point is concentrated, characteristic point distribution
Density=characteristic point sum/fingerprint area, when characteristic point distribution density is in the second preset range, confirmation electronic equipment is in
Otherwise default low-temperature condition then confirms that electronic equipment is not at default low-temperature condition.
Optionally, above-mentioned steps A1, detects whether the electronic equipment is in default low-temperature condition, it may include following step
It is rapid:
C11, image quality evaluation is carried out to the fingerprint image, obtains image quality evaluation values；
C12, when described image quality evaluation value is in third preset range, confirm the electronic equipment be in preset it is low
The step of temperature state.
Wherein, third preset range can be by user's self-setting or system default.Under normal conditions, if not dry finger
Corresponding fingerprint image, then its fingerprint image can be relatively clear, if the corresponding fingerprint image of dry finger, then its fingerprint image meeting
Picture quality is reduced to a certain extent, and still, picture quality can also be kept in a certain range, according to this principle, electricity
Sub- equipment can carry out image quality evaluation to fingerprint image, obtain image quality evaluation values, be in the in image quality evaluation values
When three preset ranges, then confirm that electronic equipment is in default low-temperature condition and otherwise then confirms that electronic equipment is not at default low temperature
State.
Still optionally further, above-mentioned steps C11 carries out image quality evaluation to the fingerprint image, obtains picture quality
Evaluation of estimate can be implemented as follows:
Image quality evaluation is carried out to fingerprint image using at least one image quality evaluation index, picture quality is obtained and comments
Value.
Wherein, image quality evaluation index may include, but are not limited to: average gray, mean square deviation, entropy, edge conservation degree,
Signal-to-noise ratio etc..The image quality evaluation values that may be defined as are bigger, then picture quality is better.
A kind of method of fingerprint authentication is provided refering to Fig. 3, Fig. 3, this method is held by electronic device as shown in Figure 1
Row, this method is as shown in figure 3, include the following steps:
Step S301, fingerprint image is acquired, fingerprint authentication is carried out to fingerprint image；
Step S302, such as fingerprint image, which is verified 2 times, has not been able to be proved to be successful, and obtains the crestal line and valley line of fingerprint image,
The crestal line of fingerprint image and valley line are subjected to reverse process and obtain reversed fingerprint image；
Step S303, the reversed fingerprint image is subjected to fingerprint authentication, be such as proved to be successful, executed fingerprint authentication and successfully grasp
Make.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of another kind electronic equipment disclosed in the embodiment of the present application, as shown,
The electronic equipment includes processor, memory, communication interface, display screen, fingerprint verifying apparatus, and one or more programs,
Wherein, said one or multiple programs are stored in above-mentioned memory, and are configured to be executed by above-mentioned processor, above-mentioned journey
Sequence includes the instruction for executing following steps:
Fingerprint image is acquired, fingerprint authentication is carried out to fingerprint image；As fingerprint image verifying n times have not been able to verifying at
Function obtains reversed fingerprint image after carrying out reverse process to the fingerprint image；The reversed fingerprint image is subjected to fingerprint authentication, such as
It is proved to be successful, executes fingerprint authentication Successful Operation.
A kind of electronic device is provided refering to Fig. 5, Fig. 5, the electronic device includes: processor 501,502 and of display screen
Fingerprint verifying apparatus 503, the fingerprint verifying apparatus are located at the downside of the display screen；
The fingerprint verifying apparatus, for acquiring fingerprint image；
The processor, for carrying out fingerprint authentication to fingerprint image；As fingerprint image verifying n times have not been able to verifying at
Function obtains reversed fingerprint image after carrying out reverse process to the fingerprint image；The reversed fingerprint image is subjected to fingerprint authentication, such as
It is proved to be successful, executes fingerprint authentication Successful Operation.
Optionally, the processor, specifically for the fingerprint image is handled to obtain the fingerprint image crestal line and
The crestal line of fingerprint image is transformed into valley line, the valley line of the fingerprint image is transformed into crestal line and obtains the fingerprint image by valley line
Reversed fingerprint image.
Optionally, the processor is extracted specifically for fingerprint image progress gray proces are obtained gray-scale fingerprint image
The gray value of all pixels point be calculated reversely by formula 1 by the gray value of all pixels point in gray-scale fingerprint image
The gray value of all pixels point of fingerprint image；
Reversed gray value=255- gray value formula 1.
The refinement scheme in above method embodiment can also be performed in above-mentioned processor, for example, execute above-mentioned 21,22,23,
24、A1、A2、B11、B12、B13、B14、C11、C12。
The embodiment of the present application also provides a kind of computer storage medium, wherein computer storage medium storage is for electricity
The computer program of subdata exchange, the computer program make computer execute any as recorded in above method embodiment
Some or all of method step.
The embodiment of the present application also provides a kind of computer program product, and above-mentioned computer program product includes storing calculating
The non-transient computer readable storage medium of machine program, above-mentioned computer program are operable to that computer is made to execute such as above-mentioned side
Some or all of either record method step in method embodiment.The computer program product can be a software installation
Packet.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the application is not limited by the described action sequence because
According to the application, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, related actions and modules not necessarily the application
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of above-mentioned module, it is only a kind of
Logical function partition, there may be another division manner in actual implementation, such as multiple module or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or module,
It can be electrical or other forms.
Above-mentioned module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple
On network module.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
It, can also be in addition, can integrate in a processing module in each functional module in each embodiment of the application
It is that modules physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.
If above-mentioned integrated module is realized in the form of software function module and sells or use as independent product
When, it can store in a computer-readable access to memory.Based on this understanding, the technical solution of the application substantially or
Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products
Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment
(can be personal computer, server or network equipment etc.) executes all or part of each embodiment above method of the application
Step.And memory above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory
May include: flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English:
Random Access Memory, referred to as: RAM), disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and
Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the application
There is change place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (10)
1. a kind of fingerprint authentication method, which is characterized in that described method includes following steps:
Fingerprint image is acquired, fingerprint authentication is carried out to fingerprint image；
If fingerprint image verifying n times have not been able to be proved to be successful, reversed fingerprint is obtained after carrying out reverse process to the fingerprint image
Image；
The reversed fingerprint image is subjected to fingerprint authentication, is such as proved to be successful, executes fingerprint authentication Successful Operation.
2. the method according to claim 1, wherein the described pair of fingerprint image obtains instead after carrying out reverse process
It is specifically included to fingerprint image:
The fingerprint image is handled to obtain the crestal line and valley line of the fingerprint image, the crestal line of fingerprint image is transformed into paddy
The valley line of the fingerprint image is transformed into crestal line and obtains the reversed fingerprint image of the fingerprint image by line.
3. the method according to claim 1, wherein the described pair of fingerprint image obtains instead after carrying out reverse process
It is specifically included to fingerprint image:
Fingerprint image progress gray proces are obtained into gray-scale fingerprint image, extract the gray scale of all pixels point in gray-scale fingerprint image
Value, the gray value for all pixels point that the gray value of all pixels point by formula 1 is carried out that reversed fingerprint image is calculated；
Reversed gray value=255- gray value formula 1.
4. the method according to claim 1, wherein described specifically include fingerprint image progress fingerprint authentication:
Lines screening is carried out to the fingerprint image, obtains a plurality of target fingerprint lines, the fingerprint image includes a plurality of fingerprint
Lines, the mean breadth of each fingerprint lines is in predetermined width range in the target fingerprint lines；
Feature point extraction is carried out to a plurality of target fingerprint lines, obtains fisrt feature point set, the fisrt feature point set packet
Include multiple characteristic points；
Feature extraction is carried out to the preset fingerprint template, obtains second feature point set；
The fisrt feature point set is matched with the second feature point set, matching value is obtained, as matching value is greater than successfully
Threshold value, determination are proved to be successful.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
It if matching value is less than success threshold, determines whether matching value is in the first preset range, is preset as matching value belongs to first
Range executes operation corresponding with the first preset range.
6. a kind of electronic device, the electronic device includes: processor, display screen and fingerprint verifying apparatus, which is characterized in that institute
State the downside that fingerprint verifying apparatus is located at the display screen；
The fingerprint verifying apparatus, for acquiring fingerprint image；
The processor, for carrying out fingerprint authentication to fingerprint image；If fingerprint image verifying n times have not been able to be proved to be successful,
Reversed fingerprint image is obtained after carrying out reverse process to the fingerprint image；The reversed fingerprint image is subjected to fingerprint authentication, is such as tested
It demonstrate,proves successfully, executes fingerprint authentication Successful Operation.
7. electronic device according to claim 6, which is characterized in that
The processor, specifically for being handled the fingerprint image to obtain the crestal line and valley line of the fingerprint image, by fingerprint
The crestal line of image is transformed into valley line, and the valley line of the fingerprint image is transformed into crestal line and obtains the reversed fingerprint image of the fingerprint image
Picture.
8. electronic device according to claim 6, which is characterized in that
The processor extracts gray scale fingerprint image specifically for fingerprint image progress gray proces are obtained gray-scale fingerprint image
The gray value of all pixels point, is carried out the gray value of all pixels point that reversed fingerprint image is calculated by formula 1 as in
The gray value of all pixels point；
Reversed gray value=255- gray value formula 1.
9. a kind of electronic device, which is characterized in that including processor, memory, communication interface, display screen, fingerprint verifying apparatus,
And one or more programs, one or more of programs are stored in the memory, and are configured by described
It manages device to execute, described program is included the steps that for executing the instruction in the method as described in claim 1-5 any one.
10. a kind of computer readable storage medium, which is characterized in that storage is used for the computer program of electronic data interchange,
In, the computer program makes computer execute the method as described in claim 1-5 any one.
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