CN106250876B - A kind of fingerprint identification method and terminal - Google Patents

A kind of fingerprint identification method and terminal Download PDF

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Publication number
CN106250876B
CN106250876B CN201610693219.3A CN201610693219A CN106250876B CN 106250876 B CN106250876 B CN 106250876B CN 201610693219 A CN201610693219 A CN 201610693219A CN 106250876 B CN106250876 B CN 106250876B
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feature information
fingerprint feature
predeterminable area
matching degree
threshold value
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CN106250876A (en
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江克俊
刘海强
曹晓杰
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Shenzhen Microphone Holdings Co Ltd
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Shenzhen Jinli Communication Equipment Co Ltd
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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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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Collating Specific Patterns (AREA)

Abstract

The embodiment of the invention discloses a kind of fingerprint identification method and terminals, wherein the described method includes: obtaining the first fingerprint feature information of user's input if detecting the triggering command for carrying out authentication by fingerprint；The corresponding matching degree threshold value of predeterminable area for determining the corresponding predeterminable area of first fingerprint feature information, and obtaining the determination；If the matching degree of first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching degree threshold value of the acquisition, it is identified as finger print identifying success.The embodiment of the present invention can improve the success rate of fingerprint recognition while guaranteeing the safety of fingerprint recognition.

Description

A kind of fingerprint identification method and terminal
Technical field
The present invention relates to electronic technology field more particularly to a kind of fingerprint identification method and terminals.
Background technique
Fingerprint identification technology has been more and more widely used as a kind of identity identifying technology based on biological characteristic, refers to Line identification has become a kind of very important identification mode.Such as: by fingerprint recognition carry out removing screen locking, into Row payment or the default application program of starting etc..
Current fingerprinting scheme is that the fingerprint characteristic for the single finger that terminal acquires user by fingerprint sensor is believed It ceases (characteristic informations such as starting point, terminal, binding site and bifurcation of fingerprint), and the fingerprint feature information that will acquire is come with prestoring Fingerprint feature information compare.When the fingerprint feature information that gets and when the matching of fingerprint feature information that prestores, It is identified as authentication success, removing screen locking or is paid；Conversely, being then identified as authentication failure.
However, user is when carrying out authentication by fingerprint, the position of contact of the finger with fingerprint sensor may not Identical, so that collected fingerprint feature information may be different every time for fingerprint sensor, this, which fingerprint will likely occur, to identify Or the unsuccessful problem of matching.
Summary of the invention
The embodiment of the present invention provides a kind of fingerprint identification method and terminal, can guarantee the same of the safety of fingerprint recognition When, improve the success rate of fingerprint recognition.
In a first aspect, the embodiment of the invention provides a kind of fingerprint identification methods, this method comprises:
If detecting the triggering command for carrying out authentication by fingerprint, the first fingerprint characteristic letter of user's input is obtained Breath；
Determine the corresponding predeterminable area of first fingerprint feature information, and the predeterminable area for obtaining the determination is corresponding Matching degree threshold value；Wherein, the fingerprint image of each finger is divided at least two predeterminable areas, and the fingerprint of each predeterminable area is special Reference breath is corresponded with matching degree threshold value, and the corresponding matching degree threshold value of each predeterminable area is according to detecting the predeterminable area The number of fingerprint feature information be determined；
If the matching degree of first fingerprint feature information and preset fingerprint feature information is greater than or equal to the acquisition The matching degree threshold value, be identified as finger print identifying success.
On the other hand, the embodiment of the invention provides a kind of terminal, which includes:
First acquisition unit, if obtaining user's input for detecting the triggering command for carrying out authentication by fingerprint The first fingerprint feature information；
Second acquisition unit for determining the corresponding predeterminable area of first fingerprint feature information, and obtains described true The corresponding matching degree threshold value of fixed predeterminable area；Wherein, the fingerprint image of each finger is divided at least two predeterminable areas, often The fingerprint feature information of a predeterminable area and matching degree threshold value correspond, the corresponding matching degree threshold value of each predeterminable area according to Detect that the number of the fingerprint feature information of the predeterminable area is determined；
Control unit, if the matching degree for first fingerprint feature information and preset fingerprint feature information be greater than or Equal to the matching degree threshold value of the acquisition, it is identified as finger print identifying success.
If the embodiment of the present invention passes through the triggering command for detecting and carrying out authentication by fingerprint, user's input is obtained First fingerprint feature information；Determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding to obtain determining predeterminable area Matching degree threshold value；If the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to obtained With degree threshold value, be identified as finger print identifying success, can guarantee fingerprint recognition safety while, improve fingerprint matching at Power.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is a kind of schematic flow diagram of fingerprint identification method provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of fingerprint identification method schematic flow diagram；
Fig. 3 is a kind of schematic block diagram of terminal provided in an embodiment of the present invention；
Fig. 4 be another embodiment of the present invention provides a kind of terminal schematic block diagram；
Fig. 5 is a kind of terminal schematic block diagram that yet another embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this description of the invention merely for the sake of description specific embodiment And be not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless on Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or " if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In the specific implementation, terminal described in the embodiment of the present invention is including but not limited to such as with touch sensitive surface The mobile phone, laptop computer or tablet computer of (for example, touch-screen display and/or touch tablet) etc it is other just Portable device.It is to be further understood that in certain embodiments, the equipment is not portable communication device, but there is touching Touch the desktop computer of sensing surface (for example, touch-screen display and/or touch tablet).
In following discussion, the terminal including display and touch sensitive surface is described.It is, however, to be understood that It is that terminal may include one or more of the other physical user-interface device of such as physical keyboard, mouse and/or control-rod.
Terminal supports various application programs, such as one of the following or multiple: drawing application program, demonstration application journey Sequence, word-processing application, website create application program, disk imprinting application program, spreadsheet applications, game application Program, telephony application, videoconference application, email application, instant messaging applications, exercise Support application program, photo management application program, digital camera application program, digital camera application program, web-browsing application Program, digital music player application and/or video frequency player application program.
The various application programs that can be executed at the terminal can be used such as touch sensitive surface at least one is public Physical user-interface device.It can adjust and/or change among applications and/or in corresponding application programs and touch sensitive table The corresponding information shown in the one or more functions and terminal in face.In this way, the public physical structure of terminal is (for example, touch Sensing surface) it can support the various application programs with user interface intuitive and transparent for a user.
Referring to Figure 1, Fig. 1 is a kind of schematic flow diagram of fingerprint identification method provided in an embodiment of the present invention.This implementation The executing subject of fingerprint identification method is terminal in example, and terminal has fingerprint identification function.Terminal can be mobile phone, tablet computer Equal mobile terminals.Fingerprint identification method as shown in Figure 1 can comprise the following steps that
S101: if detecting the triggering command for carrying out authentication by fingerprint, the first fingerprint for obtaining user's input is special Reference breath.
User first passes through fingerprint in advance and carries out the set interface unlatching finger print identifying function of authentication, and inputs the finger of reference When line characteristic information, terminal obtains the corresponding fingerprint image of each finger of user by fingerprint sensor, and from fingerprint image The fingerprint feature information of the reference of user's input is obtained, and is identified as preset fingerprint feature information.Terminal can will be used The corresponding fingerprint feature information of same finger that family repeatedly inputs is combined into one, and is respectively corresponded to storing each finger by finger Complete fingerprint feature information.
Wherein, fingerprint sensor can be capacitance sensor or optical sensor, and but it is not limited to this, can also be others Fingerprint sensor, herein with no restrictions.
The corresponding fingerprint image comprising complete finger print characteristic information of each finger is divided at least two and preset by terminal Region.At least two predeterminable areas may include intermediate region and fringe region, and fringe region may include first edge area Domain and second edge region.Fingerprint feature information includes the characteristic informations such as starting point, terminal, binding site and the bifurcation of fingerprint.
Terminal is detecting that terminal is obtained by fingerprint sensor and used when carrying out the triggering command of authentication by fingerprint The fingerprint image at family, and the first fingerprint feature information that acquisition user inputs from fingerprint image.
Wherein, it may is that terminal has preset unlocked by fingerprint function by the triggering command that fingerprint carries out authentication, detect Fingerprint is inputted in unlock interface to user, it is intended to the screen locking of terminal is released by finger print identifying；It is also possible to terminal detection Fingerprint is inputted in payment interface, it is intended to payment function be realized by finger print identifying, but it is not limited to this, can also be other Triggering command is (for example, terminal detects the application icon that user clicks on main interface/desktop, it is intended to be opened by finger print identifying Move the corresponding application of the application icon), herein with no restrictions.
S102: it determines the corresponding predeterminable area of first fingerprint feature information, and obtains the predeterminable area of the determination Corresponding matching degree threshold value.
Since the contact area of user's finger and fingerprint sensor is limited, the fingerprint image of each finger is divided at least two A predeterminable area, the fingerprint feature information that user inputs every time only account for the corresponding pre-stored preset fingerprint feature of the finger A portion of information；Therefore, terminal is after the first fingerprint feature information for getting user's input, in conjunction with local data base The data of preservation determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding default to obtain the first fingerprint feature information Matching degree threshold value corresponding to region.
Wherein, the fingerprint feature information of each predeterminable area and matching degree threshold value correspond, and each predeterminable area is corresponding Matching degree threshold value be determined according to the number for the fingerprint feature information for detecting predeterminable area.
It is understood that the corresponding initial matching degree threshold value of the fingerprint feature information of each predeterminable area can be identical, Such as be 90%, but it is not limited to this.
In use, terminal can be according to the corresponding preset areas of fingerprint feature information for detecting user's input by user The corresponding matching degree threshold value of each predeterminable area is arranged in the number in domain.
For example, terminal detects the number of the fingerprint feature information of preset intermediate region in confirmation within a preset period of time Greater than other predeterminable areas (preset fringe region) number when, terminal recognition be user be accustomed to use preset intermediate region Fingerprint feature information carry out authentication, terminal reduces the corresponding matching degree threshold value in preset intermediate region, for example, preset The corresponding matching degree threshold value in intermediate region is that 80% (but it is not limited to this, can specifically be configured according to the actual situation, herein not It is limited).
Alternatively, terminal check detects that the number of the fingerprint feature information of preset intermediate region is big within a preset period of time In the number of the fingerprint feature information in preset first edge region, time of the fingerprint feature information in preset first edge region When number is greater than the number of the fingerprint feature information in preset second edge region, terminal recognition is that user is accustomed to using in preset Between region, preset first edge region fingerprint feature information carry out authentication, terminal reduce preset intermediate region with And the preset corresponding matching degree threshold value in first edge region, and the corresponding matching degree threshold value in preset intermediate region is less than The corresponding matching degree threshold value in preset first edge region.For example, the corresponding matching degree threshold value in preset intermediate region is 80%, The corresponding matching degree threshold value in preset first edge region is 85%.
It is understood that when fingerprint image is divided into 4 or more predeterminable areas, specific implementation and finger Print image is divided into 2 predeterminable areas (preset intermediate region, preset first edge region and preset second edge Region) it is similar, referring specifically to above-mentioned associated description, do not repeat herein.
Wherein, preset time period can be one week, and but it is not limited to this, may be arranged as other values, specifically can basis Actual needs is configured.
Preset matching angle value can be configured according to the actual situation, herein with no restrictions.Terminal is reducing matching degree threshold When value, it is necessary to be to guarantee the safety of finger print identifying based on the basis of the uniqueness that can guarantee finger print identifying.
S103: if the matching degree of first fingerprint feature information and preset fingerprint feature information is more than or equal to described The matching degree threshold value obtained is identified as finger print identifying success.
The first fingerprint feature information that terminal will acquire is compared with the fingerprint feature information prestored, and calculates first Matching degree between fingerprint feature information and the fingerprint feature information prestored, and judge whether the matching degree is greater than or equal to Matching degree threshold value corresponding to the corresponding predeterminable area of one fingerprint feature information.
Terminal is greater than or equal in the matching degree for confirming the first fingerprint feature information and preset fingerprint feature information to be obtained Matching degree threshold value when, be identified as finger print identifying success.Wherein, the matching degree threshold value of acquisition is corresponding for the first fingerprint feature information Predeterminable area corresponding to matching degree threshold value.
It is understood that when confirming finger print identifying success, it is corresponding default can to execute finger print identifying success for terminal Operation.Predetermined registration operation can be unlock, payment, starting application program etc..
For example, terminal, when confirming that user attempts through finger print identifying removing screen locking, terminal is in confirmation finger print identifying After success, it is unlocked operation.
Terminal when confirming that user attempts to pay by finger print identifying, hold after confirmation finger print identifying success by terminal Row delivery operation.
Above scheme obtains the of user's input if terminal detects the triggering command for carrying out authentication by fingerprint One fingerprint feature information；Determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding to obtain determining predeterminable area Matching degree threshold value；If the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as, the success of fingerprint matching can be improved while guaranteeing the safety of fingerprint recognition Rate.
Refer to Fig. 2, Fig. 2 be another embodiment of the present invention provides a kind of fingerprint identification method schematic flow diagram.This The executing subject of fingerprint identification method is terminal in embodiment, and terminal has fingerprint identification function.Terminal can be mobile phone, plate The mobile terminals such as computer.Fingerprint identification method as shown in Figure 2 can comprise the following steps that
S201: the first history fingerprint feature information of user's input is obtained, and determines that the first history fingerprint is special Reference ceases corresponding predeterminable area.
User first passes through fingerprint in advance and carries out the set interface unlatching finger print identifying function of authentication, and inputs the finger of reference When line characteristic information, terminal obtains the corresponding fingerprint image of each finger of user by fingerprint sensor, and from fingerprint image The fingerprint feature information of the reference of user's input is obtained, and is identified as preset fingerprint feature information.Terminal can will be used The corresponding fingerprint feature information of same finger that family repeatedly inputs is combined into one, and is respectively corresponded to storing each finger by finger Complete fingerprint feature information.
Wherein, fingerprint sensor can be capacitance sensor or optical sensor, and but it is not limited to this, can also be others Fingerprint sensor, herein with no restrictions.
The corresponding fingerprint image comprising complete finger print characteristic information of each finger is divided at least two and preset by terminal Region.At least two predeterminable areas may include intermediate region and fringe region, and fringe region may include first edge area Domain and second edge region.Fingerprint feature information includes the characteristic informations such as starting point, terminal, binding site and the bifurcation of fingerprint.
Terminal obtains the first history fingerprint feature information that user inputs in the first preset time period, and determines that first goes through The corresponding predeterminable area of fingerprint feature information institute and statistic mixed-state for each finger that history fingerprint feature information is included To the corresponding number of fingerprint feature information of each predeterminable area of each finger.
Wherein, the first preset time period can be one week, and but it is not limited to this, may be arranged as other values, specifically may be used It is configured according to actual needs.
S202: it is determined according to the number of the corresponding each predeterminable area of the first history fingerprint feature information each described pre- If the corresponding matching degree threshold value in region.
Terminal determines that each predeterminable area is corresponding according to the number of the corresponding each predeterminable area of the first history fingerprint feature information Matching degree threshold value.Wherein, under the premise of can guarantee the uniqueness of finger print identifying, the corresponding number of predeterminable area is higher, should The corresponding matching degree threshold value of predeterminable area is lower.
For example, predeterminable area includes preset intermediate region, preset first edge region and preset second edge Region, matching degree is greater than 60% uniqueness and safety that can guarantee finger print identifying, and each predeterminable area is corresponding initial When matching degree threshold value is 90%, terminal check detects the fingerprint characteristic letter of preset intermediate region in the first preset time period The number of breath is greater than the number of the fingerprint feature information in preset first edge region, and the fingerprint in preset first edge region is special When the number for the fingerprint feature information that the number of reference breath is greater than preset second edge region, terminal recognition is that user's habit is adopted Carry out authentication with the fingerprint feature information of preset intermediate region, preset first edge region, terminal will be preset in Between the corresponding matching degree threshold value in region be 70%, the corresponding matching degree threshold value in preset first edge region is 80%, preset The corresponding matching degree threshold value in second edge region is 90% (continuing to have).
Wherein, the value range of the corresponding matching degree threshold value of the predeterminable area is more than or equal to 60%, and less than 90%.
Optionally, security level, each security level can also be arranged according to the corresponding number of each predeterminable area in terminal A corresponding matching degree threshold value.Wherein, the corresponding numbers range of each security level, the more high corresponding matching degree of security level Threshold value is also higher.
For example, the predeterminable area is corresponding when the number for detecting the corresponding fingerprint feature information of predeterminable area is 1~5 time Security level be level-one, the corresponding matching degree threshold value of level-one security level be 90%；Detect the corresponding fingerprint of predeterminable area The number of characteristic information be 6~15 times when, the corresponding security level of the predeterminable area be second level, secondary safety grade corresponding It is 80% with degree threshold value；When the number for detecting the corresponding fingerprint feature information of predeterminable area is 16~30 times, the predeterminable area Corresponding security level is three-level, and the corresponding matching degree threshold value of three-level security level is 70%.It is understood that each safety The corresponding numbers range of grade, the corresponding matching degree threshold value of each security level can be configured according to actual needs, herein With no restrictions.
S203: if detecting the triggering command for carrying out authentication by fingerprint, the first fingerprint for obtaining user's input is special Reference breath.
Terminal is detecting that terminal is obtained by fingerprint sensor and used when carrying out the triggering command of authentication by fingerprint The fingerprint image at family, and the first fingerprint feature information that acquisition user inputs from fingerprint image.
Wherein, it may is that terminal has preset unlocked by fingerprint function by the triggering command that fingerprint carries out authentication, detect Fingerprint is inputted in unlock interface to user, it is intended to the screen locking of terminal is released by finger print identifying；It is also possible to terminal detection Fingerprint is inputted in payment interface, it is intended to payment function be realized by finger print identifying, but it is not limited to this, can also be other Triggering command is (for example, terminal detects the application icon that user clicks on main interface/desktop, it is intended to be opened by finger print identifying Move the corresponding application of the application icon), herein with no restrictions.
S204: it determines the corresponding predeterminable area of first fingerprint feature information, and obtains the predeterminable area of the determination Corresponding matching degree threshold value.
Since the contact area of user's finger and fingerprint sensor is limited, the fingerprint image of each finger is divided at least two A predeterminable area, the fingerprint feature information that user inputs every time only account for the corresponding pre-stored preset fingerprint feature of the finger A portion of information；Therefore, terminal is after the first fingerprint feature information for getting user's input, in conjunction with local data base The data of preservation determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding default to obtain the first fingerprint feature information Matching degree threshold value corresponding to region.
Optionally, the corresponding security level of terminal setting predeterminable area, and matching degree threshold value is set for each security level When, step S204 may include: the security level of the corresponding predeterminable area of determining first fingerprint feature information；Described in acquisition The corresponding matching degree threshold value of determining security level.
Since the corresponding fingerprint image comprising complete finger print characteristic information of each finger is divided at least two by terminal It is special to traverse the preset fingerprint saved in local data base when getting the first fingerprint feature information for predeterminable area, therefore, terminal Reference, which ceases, determines the corresponding predeterminable area of the first fingerprint feature information, and determines the corresponding security level of the predeterminable area, and Obtain the corresponding matching degree threshold value of the security level.
Optionally, when corresponding at least two predeterminable area of the first fingerprint feature information, step S204 can also include: true Determine corresponding at least two predeterminable area of first fingerprint feature information, and it is respectively right to obtain at least two predeterminable area The matching degree threshold value answered.
When corresponding at least two predeterminable area of the first fingerprint feature information, terminal determines that the first fingerprint feature information is corresponding At least two predeterminable areas, and obtain the corresponding matching degree threshold value of at least two predeterminable areas.
For example, the first fingerprint feature information corresponds to preset intermediate region and preset first edge region, obtain pre- If the corresponding matching degree threshold value in intermediate region, and obtain the corresponding matching degree threshold value in preset first edge region.
For example, getting the corresponding matching degree threshold value in preset intermediate region is 70%, and get preset first The corresponding matching degree threshold value of fringe region is 80%.
S205: if the matching degree of first fingerprint feature information and preset fingerprint feature information is more than or equal to described The matching degree threshold value obtained is identified as finger print identifying success.
The first fingerprint feature information that terminal will acquire is compared with the fingerprint feature information prestored, and calculates first Matching degree/similarity between fingerprint feature information and the fingerprint feature information prestored, and judge that the matching degree/similarity is It is no to be greater than or equal to matching degree threshold value corresponding to the corresponding predeterminable area of the first fingerprint feature information.
Terminal is greater than or equal in the matching degree for confirming the first fingerprint feature information and preset fingerprint feature information to be obtained Matching degree threshold value when, be identified as finger print identifying success.Wherein, the matching degree threshold value of acquisition is corresponding for the first fingerprint feature information Predeterminable area corresponding to matching degree threshold value.
Optionally, when corresponding at least two predeterminable area of the first fingerprint feature information, if step S205 can also include: First fingerprint feature information of each predeterminable area and the matching degree of preset fingerprint feature information are all larger than or are equal to each The self-corresponding matching degree threshold value is identified as finger print identifying success.
For example, the first fingerprint feature information corresponds to preset intermediate region and preset first edge region, and obtain It is 70% to the corresponding matching degree threshold value in preset intermediate region, and gets the corresponding matching in preset first edge region When degree threshold value is 80%, terminal judges that corresponding first fingerprint feature information in preset intermediate region and preset fingerprint characteristic are believed Whether matching degree/similarity of breath is greater than or equal to 70%, and judges corresponding first fingerprint in preset first edge region Whether matching degree/similarity of characteristic information and preset fingerprint feature information is greater than or equal to 80%.
Terminal is confirming corresponding first fingerprint feature information in preset intermediate region and preset fingerprint feature information Matching degree/similarity is greater than or equal to 70%, and judges corresponding first fingerprint feature information in preset first edge region When being greater than or equal to 80% with matching degree/similarity of preset fingerprint feature information, it is identified as finger print identifying success.
It is understood that when confirming finger print identifying success, it is corresponding default can to execute finger print identifying success for terminal Operation.Predetermined registration operation can be unlock, payment, starting application program etc..
For example, terminal, when confirming that user attempts through finger print identifying removing screen locking, terminal is in confirmation finger print identifying After success, it is unlocked operation.
Terminal when confirming that user attempts to pay by finger print identifying, hold after confirmation finger print identifying success by terminal Row delivery operation.
S206: the second history fingerprint feature information of user's input is obtained, and determines that the second history fingerprint is special Reference ceases corresponding predeterminable area.
Terminal obtains the second history fingerprint feature information that user inputs in the second preset time period, and determines that second goes through The corresponding predeterminable area of fingerprint feature information institute and statistic mixed-state for each finger that history fingerprint feature information is included To the corresponding number of fingerprint feature information of each predeterminable area of each finger.
Wherein, the second preset time period can be one week, and but it is not limited to this, may be arranged as other values, specifically may be used It is configured according to actual needs.
S207: it is adjusted according to the number of the corresponding each predeterminable area of the first history fingerprint feature information each described pre- If the corresponding matching degree threshold value in region.
Terminal is according to the corresponding each predeterminable area of the second history fingerprint feature information obtained in the second preset time period Number, adjust the corresponding matching degree threshold value of each predeterminable area.Wherein, under the premise of can guarantee the uniqueness of finger print identifying, The corresponding number of predeterminable area is higher, and the corresponding matching degree threshold value of the predeterminable area is lower.Second preset time period can be one In week, but it is not limited to this, may be arranged as other values, can specifically be configured according to actual needs.
For example, it is assumed that: predeterminable area includes preset intermediate region, preset first edge region and preset second Fringe region, the corresponding matching degree threshold value in preset intermediate region are 70%, the corresponding matching degree in preset first edge region Threshold value is 80%, and the corresponding matching degree threshold value in preset second edge region is 90%；
So, terminal check detects the fingerprint feature information in preset second edge region in the second preset time period Number be greater than preset first edge region fingerprint feature information number, and the fingerprint in preset first edge region is special When the number for the fingerprint feature information that the number of reference breath is greater than preset intermediate region, terminal recognition is that user is accustomed to using pre- If second edge region, preset first edge region fingerprint feature information carry out authentication, terminal is by preset the The corresponding matching degree threshold value of two fringe regions is 70%, and the corresponding matching degree threshold value in preset second edge region is 80%, in advance If the corresponding matching degree threshold value in intermediate region be 90%.
Certainly, preset intermediate region, preset first edge region and preset second edge region respectively correspond to Matching degree threshold value adjusted can also be other values, as long as guarantee finger print identifying uniqueness (for example, matching degree is big Can guarantee the uniqueness and safety of finger print identifying in 60%) under the premise of, the corresponding number of predeterminable area is higher, the preset areas The corresponding matching degree threshold value in domain is lower.
Optionally, terminal can also adjust security level, each security level according to the corresponding number of each predeterminable area A corresponding matching degree threshold value.Wherein, the corresponding numbers range of each security level, the more high corresponding matching degree of security level Threshold value is also higher.
For example, the predeterminable area is corresponding when the number for detecting the corresponding fingerprint feature information of predeterminable area is 1~5 time Security level be level-one, the corresponding matching degree threshold value of level-one security level be 90%；Detect the corresponding fingerprint of predeterminable area The number of characteristic information be 6~15 times when, the corresponding security level of the predeterminable area be second level, secondary safety grade corresponding It is 80% with degree threshold value；When the number for detecting the corresponding fingerprint feature information of predeterminable area is 16~30 times, the predeterminable area Corresponding security level is three-level, and the corresponding matching degree threshold value of three-level security level is 70%.It is understood that each safety The corresponding numbers range of grade, the corresponding matching degree threshold value of each security level can be configured according to actual needs, herein With no restrictions.
It is understood that in the present embodiment, being divided into preset intermediate region, preset first with fingerprint image It is illustrated for fringe region and preset second edge region, in other embodiments, fingerprint image is divided into 4 Or more predeterminable area, it is (preset intermediate region, pre- that specific implementation and fingerprint image are divided into 2 predeterminable areas If first edge region and preset second edge region) it is similar, referring specifically to above-mentioned associated description, do not go to live in the household of one's in-laws on getting married herein It states.
The the first history fingerprint feature information and the second history fingerprint feature information being previously mentioned in the present embodiment are certification By fingerprint feature information, the corresponding matching degree threshold value association of the fingerprint feature information of each predeterminable area is stored in local data Library.
Above scheme obtains the of user's input if terminal detects the triggering command for carrying out authentication by fingerprint One fingerprint feature information；Determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding to obtain determining predeterminable area Matching degree threshold value；If the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as, the success of fingerprint matching can be improved while guaranteeing the safety of fingerprint recognition Rate improves fingerprint matching rate and fingerprint recognition sensitivity.
Terminal can adjust each predeterminable area corresponding according to successful history fingerprint feature information dynamic is authenticated With degree threshold value, under the premise of guaranteeing finger print identifying safety, it is accustomed to reducing matching degree as far as possible according to the finger print identifying of user Threshold value makes user more easily carry out finger print identifying to improve fingerprint matching rate and fingerprint recognition sensitivity.
It is a kind of schematic block diagram of terminal provided in an embodiment of the present invention referring to Fig. 3, Fig. 3.Terminal can be mobile phone, put down The mobile terminals such as plate computer, but it is not limited to this, can also be other terminals, herein with no restrictions.The terminal packet of the present embodiment The each unit included is used to execute each step in the corresponding embodiment of Fig. 1, referring specifically to the corresponding embodiment of Fig. 1 and Fig. 1 In associated description, do not repeat herein.The terminal 300 of the present embodiment includes: first acquisition unit 310, second acquisition unit 320 And control unit 330.
If first acquisition unit 310 is used to detect the triggering command for carrying out authentication by fingerprint, it is defeated to obtain user The first fingerprint feature information entered.
For example, it is defeated that first acquisition unit 310 obtains user if detecting the triggering command for carrying out authentication by fingerprint The first fingerprint feature information entered.
First acquisition unit 310 sends the first fingerprint feature information to second acquisition unit 320.
Second acquisition unit 320 is used to receive the first fingerprint feature information of the transmission of first acquisition unit 310, determines first The corresponding predeterminable area of fingerprint feature information, and obtain the corresponding matching degree threshold value of determining predeterminable area；Wherein, each finger Fingerprint image be divided at least two predeterminable areas, the fingerprint feature information and matching degree threshold value one of each predeterminable area are a pair of It answers, the corresponding matching degree threshold value of each predeterminable area carries out true according to the number for the fingerprint feature information for detecting predeterminable area It is fixed.
For example, second acquisition unit 320 receives the first fingerprint feature information that first acquisition unit 310 is sent, the is determined The corresponding predeterminable area of one fingerprint feature information, and obtain the corresponding matching degree threshold value of determining predeterminable area；Wherein, each hand The fingerprint image of finger is divided at least two predeterminable areas, and the fingerprint feature information and matching degree threshold value of each predeterminable area are one by one Corresponding, the corresponding matching degree threshold value of each predeterminable area carries out really according to the number for the fingerprint feature information for detecting predeterminable area It is fixed.
Second acquisition unit 320 sends out the first fingerprint feature information, the matching degree threshold value got to control unit 330 It send.
Control unit 330 is used to receive first fingerprint feature information of the transmission of second acquisition unit 320 and gets Matching degree threshold value, if the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as.
For example, control unit 330 receives first fingerprint feature information and get that second acquisition unit 320 is sent Matching degree threshold value, if the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as.
Above scheme obtains the of user's input if terminal detects the triggering command for carrying out authentication by fingerprint One fingerprint feature information；Determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding to obtain determining predeterminable area Matching degree threshold value；If the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as, the success of fingerprint matching can be improved while guaranteeing the safety of fingerprint recognition Rate improves fingerprint matching rate and fingerprint recognition sensitivity.
Refer to Fig. 4, Fig. 4 be another embodiment of the present invention provides a kind of terminal schematic block diagram.Terminal can be The mobile terminals such as mobile phone, tablet computer, but it is not limited to this, can also be other terminals, herein with no restrictions.The present embodiment The each unit that terminal includes is used to execute each step in the corresponding embodiment of Fig. 2, corresponding referring specifically to Fig. 2 and Fig. 2 Associated description in embodiment, does not repeat herein.The terminal 400 of the present embodiment include: history finger print information acquiring unit 410, Matching degree threshold value acquiring unit 420, first acquisition unit 430, second acquisition unit 440, control unit 450, determination unit 460 And adjustment unit 470.Wherein, second acquisition unit 440 may include security level determination unit 441 and matching degree threshold value Acquiring unit 442.
History finger print information acquiring unit 410 is used to obtain the first history fingerprint feature information of user's input, and determines The corresponding predeterminable area of first history fingerprint feature information.
For example, history finger print information acquiring unit 410 obtains the first history fingerprint feature information of user's input, and determine The corresponding predeterminable area of first history fingerprint feature information.History finger print information acquiring unit 410 is by the first history fingerprint characteristic The information of the corresponding predeterminable area of information is sent to matching degree threshold value acquiring unit 420.
The first history that matching degree threshold value acquiring unit 420 is used to receive the transmission of history finger print information acquiring unit 410 refers to The information of the corresponding predeterminable area of line characteristic information, according to the number of the corresponding each predeterminable area of the first history fingerprint feature information Determine the corresponding matching degree threshold value of each predeterminable area.
For example, matching degree threshold value acquiring unit 420 is used for according to the corresponding each preset areas of the first history fingerprint feature information The number in domain determines the corresponding matching degree threshold value of each predeterminable area.Matching degree threshold value acquiring unit 420 will each be preset The corresponding matching degree threshold value in region is sent to second acquisition unit 440, adjustment unit 470.
If first acquisition unit 430 is used to detect the triggering command for carrying out authentication by fingerprint, it is defeated to obtain user The first fingerprint feature information entered.
For example, it is defeated that first acquisition unit 430 obtains user if detecting the triggering command for carrying out authentication by fingerprint The first fingerprint feature information entered.
First acquisition unit 430 sends the first fingerprint feature information to second acquisition unit 440.
Second acquisition unit 440 is used to receive the first fingerprint feature information of the transmission of first acquisition unit 430, and receives The corresponding matching degree threshold value of each predeterminable area that matching degree threshold value acquiring unit 420 is sent, determines the first fingerprint characteristic The corresponding predeterminable area of information, and obtain the corresponding matching degree threshold value of determining predeterminable area；Wherein, the fingerprint image of each finger As being divided at least two predeterminable areas, the fingerprint feature information and matching degree threshold value of each predeterminable area are corresponded, each The corresponding matching degree threshold value of predeterminable area is determined according to the number for the fingerprint feature information for detecting predeterminable area.
For example, second acquisition unit 440 receives the first fingerprint feature information that first acquisition unit 430 is sent, the is determined The corresponding predeterminable area of one fingerprint feature information, and obtain the corresponding matching degree threshold value of determining predeterminable area；Wherein, each hand The fingerprint image of finger is divided at least two predeterminable areas, and the fingerprint feature information and matching degree threshold value of each predeterminable area are one by one Corresponding, the corresponding matching degree threshold value of each predeterminable area carries out really according to the number for the fingerprint feature information for detecting predeterminable area It is fixed.
Optionally, second acquisition unit 440 is specifically used for determining that the first fingerprint feature information corresponding at least two is preset Region, and obtain the corresponding matching degree threshold value of at least two predeterminable areas.
For example, second acquisition unit 440 determines corresponding at least two predeterminable area of the first fingerprint feature information, and obtain The corresponding matching degree threshold value of at least two predeterminable areas.
Optionally, second acquisition unit 440 includes security level determination unit 441 and matching degree threshold value acquiring unit When 442, the security level determination unit 441 of second acquisition unit 440 is specifically used for determining that the first fingerprint feature information is corresponding The security level of predeterminable area；Matching degree threshold value acquiring unit 442 is for obtaining the corresponding matching degree threshold of determining security level Value.
For example, the security level determination unit 441 of second acquisition unit 440 determines that the first fingerprint feature information is corresponding pre- If the security level in region；Matching degree threshold value acquiring unit 442 obtains the determining corresponding matching degree threshold value of security level.
Second acquisition unit 440 sends out the first fingerprint feature information, the matching degree threshold value got to control unit 450 It send.
Control unit 450 is used to receive first fingerprint feature information of the transmission of second acquisition unit 440 and gets Matching degree threshold value, if the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as.
For example, control unit 450 receives first fingerprint feature information and get that second acquisition unit 440 is sent Matching degree threshold value, if the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as.
Optionally, if second acquisition unit 440 obtains the corresponding matching degree threshold value of at least two predeterminable areas, control If the matching degree that unit 450 is specifically used for the first fingerprint feature information and preset fingerprint feature information of each predeterminable area is equal More than or equal to corresponding matching degree threshold value, it is identified as finger print identifying success.
For example, control is single if second acquisition unit 440 obtains at least two predeterminable areas corresponding matching degree threshold value Member 450 if it is determined that the first fingerprint feature information of each predeterminable area and the matching degree of preset fingerprint feature information be all larger than or Equal to corresponding matching degree threshold value, it is identified as finger print identifying success.
Control unit 450 sends notification information when identifying finger print identifying success, to determination unit 460.
Optionally it is determined that unit 460 is used for the notification information that reception control unit 450 is sent, the of user's input is obtained Two history fingerprint feature informations, and determine the corresponding predeterminable area of the second history fingerprint feature information.For example, determination unit 460 The notification information that reception control unit 450 is sent obtains the second history fingerprint feature information of user's input, and determines that second goes through The corresponding predeterminable area of history fingerprint feature information.
Determination unit 460 sends the corresponding predeterminable area information of the second history fingerprint feature information to adjustment unit 470.
Adjustment unit 470 is for the corresponding predeterminable area letter of the second history fingerprint feature information that determination unit 460 is sent Breath, according to each predeterminable area corresponding of the number of the corresponding each predeterminable area of the first history fingerprint feature information adjustment With degree threshold value.
For example, adjustment unit 470 is used for the corresponding preset areas of the second history fingerprint feature information that determination unit 460 is sent Domain information adjusts each predeterminable area according to the number of the corresponding each predeterminable area of the first history fingerprint feature information and respectively corresponds to Matching degree threshold value.
It is understood that each unit that the terminal in the present embodiment includes can be divided according to actual needs, be closed And it or deletes.
Above scheme obtains the of user's input if terminal detects the triggering command for carrying out authentication by fingerprint One fingerprint feature information；Determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding to obtain determining predeterminable area Matching degree threshold value；If the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as, the success of fingerprint matching can be improved while guaranteeing the safety of fingerprint recognition Rate improves fingerprint matching rate and fingerprint recognition sensitivity.
Terminal can adjust each predeterminable area corresponding according to successful history fingerprint feature information dynamic is authenticated With degree threshold value, under the premise of guaranteeing finger print identifying safety, it is accustomed to reducing matching degree as far as possible according to the finger print identifying of user Threshold value makes user more easily carry out finger print identifying to improve fingerprint matching rate and fingerprint recognition sensitivity.
It is a kind of terminal schematic block diagram that yet another embodiment of the invention provides referring to Fig. 5, Fig. 5.This reality as shown in the figure Applying the terminal 500 in example may include: one or more processors 510；One or more input equipments 520, it is one or more Output equipment 530 and memory 540.Above-mentioned processor 510, input equipment 520, output equipment 530 and memory 540 pass through total Line 550 connects.
Memory 540 is for storing program instruction.
The program instruction that processor 510 is used to be stored according to memory 540 executes following operation:
If processor 510 is used to detect the triggering command for carrying out authentication by fingerprint, the of user's input is obtained One fingerprint feature information.
Processor 510 is also used to determine the corresponding predeterminable area of first fingerprint feature information, and obtains the determination The corresponding matching degree threshold value of predeterminable area；Wherein, the fingerprint image of each finger is divided at least two predeterminable areas, each The fingerprint feature information of predeterminable area and matching degree threshold value correspond, and the corresponding matching degree threshold value of each predeterminable area is according to inspection The number for measuring the fingerprint feature information of the predeterminable area is determined.
If the matching degree that processor 510 is also used to first fingerprint feature information and preset fingerprint feature information is greater than Or the matching degree threshold value equal to the acquisition, it is identified as finger print identifying success.
Optionally, processor 510 is also used to obtain the first history fingerprint feature information of user's input, and determines institute State the corresponding predeterminable area of the first history fingerprint feature information；And for corresponding according to the first history fingerprint feature information The number of each predeterminable area determine the corresponding matching degree threshold value of each predeterminable area.
Optionally, processor 510 is also used to obtain the second history fingerprint feature information of user's input, and determines institute State the corresponding predeterminable area of the second history fingerprint feature information；And for corresponding according to the first history fingerprint feature information The number of each predeterminable area adjust each corresponding matching degree threshold value of predeterminable area.
Optionally, processor 510 is also used to determine safety of the corresponding predeterminable area of first fingerprint feature information etc. Grade；And the corresponding matching degree threshold value of security level for obtaining the determination.
Optionally, processor 510 is specifically used for determining corresponding at least two preset areas of first fingerprint feature information Domain, and obtain the corresponding matching degree threshold value of at least two predeterminable area；And if the institute for each predeterminable area The matching degree for stating the first fingerprint feature information and preset fingerprint feature information is all larger than or is equal to corresponding matching Threshold value is spent, finger print identifying success is identified as.
Above scheme obtains the of user's input if terminal detects the triggering command for carrying out authentication by fingerprint One fingerprint feature information；Determine the corresponding predeterminable area of the first fingerprint feature information, and it is corresponding to obtain determining predeterminable area Matching degree threshold value；If the matching degree of the first fingerprint feature information and preset fingerprint feature information is greater than or equal to the matching obtained Threshold value is spent, finger print identifying success is identified as, the success of fingerprint matching can be improved while guaranteeing the safety of fingerprint recognition Rate improves fingerprint matching rate and fingerprint recognition sensitivity.
Terminal can adjust each predeterminable area corresponding according to successful history fingerprint feature information dynamic is authenticated With degree threshold value, under the premise of guaranteeing finger print identifying safety, it is accustomed to reducing matching degree as far as possible according to the finger print identifying of user Threshold value makes user more easily carry out finger print identifying to improve fingerprint matching rate and fingerprint recognition sensitivity.
It should be appreciated that in embodiments of the present invention, alleged processor 510 can be central processing unit (Central Processing Unit, CPU), which can also be other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at Reason device is also possible to any conventional processor etc..
Input equipment 520 may include that Trackpad, fingerprint adopt sensor (for acquiring the finger print information and fingerprint of user Directional information), microphone etc., output equipment 530 may include display (LCD etc.), loudspeaker etc..
The memory 540 may include read-only memory and random access memory, and to processor 510 provide instruction and Data.The a part of of memory 540 can also include nonvolatile RAM.For example, memory 540 can also be deposited Store up the information of device type.
In the specific implementation, processor 510 described in the embodiment of the present invention, input equipment 520, output equipment 530 can Implementation described in the first embodiment and second embodiment of fingerprint identification method provided in an embodiment of the present invention is executed, Also the implementation of terminal described in the embodiment of the present invention can be performed, details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, the end of foregoing description The specific work process at end and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed terminal and method can pass through it Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied Another system is closed or is desirably integrated into, or some features can be ignored or not executed.In addition, shown or discussed phase Mutually between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication of device or unit Connection is also possible to electricity, mechanical or other form connections.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Unit in the terminal of that embodiment of the invention can be combined, divided and deleted according to actual needs.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs Purpose.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated Unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey The medium of sequence code.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection scope subject to.

Claims (10)

1. a kind of fingerprint identification method, which is characterized in that the described method includes:
When user opens finger print identifying function and the fingerprint feature information of input reference, same proficiency that terminal repeatedly inputs user Refer to that corresponding fingerprint feature information is combined into one, form the corresponding complete fingerprint feature information of the finger, and by the finger The corresponding fingerprint image comprising complete finger print characteristic information is divided at least two predeterminable areas, and sets to each predeterminable area Set a corresponding initial matching degree threshold value；Wherein, the corresponding matching degree threshold value of each predeterminable area can be in finger print identifying function It is dynamically adjusted in use process, specifically: the corresponding matching degree threshold value of each predeterminable area is according to detecting the predeterminable area The number of fingerprint feature information be determined, and the corresponding number of predeterminable area is higher, the corresponding matching degree of the predeterminable area Threshold value is lower；
If detecting the triggering command for carrying out authentication by fingerprint, the first fingerprint feature information of user's input is obtained；
The corresponding matching of predeterminable area for determining the corresponding predeterminable area of first fingerprint feature information, and obtaining the determination Spend threshold value；
If the matching degree of first fingerprint feature information and preset fingerprint feature information is greater than or equal to the institute of the acquisition Matching degree threshold value is stated, finger print identifying success is identified as.
2. the method according to claim 1, wherein if described detect the touching for carrying out authentication by fingerprint Send instructions, before the first fingerprint feature information for obtaining user's input, the method also includes:
The first history fingerprint feature information of user's input is obtained, and determines that the first history fingerprint feature information is corresponding Predeterminable area；
Determine that each predeterminable area is each according to the number of the corresponding each predeterminable area of the first history fingerprint feature information Self-corresponding matching degree threshold value.
3. if the method according to claim 1, wherein first fingerprint feature information and preset finger The matching degree of line characteristic information is greater than or equal to the matching degree threshold value of the acquisition, is identified as after finger print identifying success, The method also includes:
The second history fingerprint feature information of user's input is obtained, and determines that the second history fingerprint feature information is corresponding Predeterminable area；
It is each that each predeterminable area is adjusted according to the number of the corresponding each predeterminable area of the second history fingerprint feature information Self-corresponding matching degree threshold value.
4. method according to any one of claims 1 to 3, which is characterized in that determination the first fingerprint characteristic letter Corresponding predeterminable area is ceased, and the corresponding matching degree threshold value of the predeterminable area for obtaining the determination includes:
Determine the security level of the corresponding predeterminable area of first fingerprint feature information；
Obtain the corresponding matching degree threshold value of security level of the determination.
5. the method according to claim 1, wherein the determination first fingerprint feature information is corresponding pre- If region, and the corresponding matching degree threshold value of predeterminable area for obtaining the determination includes:
It determines corresponding at least two predeterminable area of first fingerprint feature information, and obtains at least two predeterminable area Corresponding matching degree threshold value；
If the matching degree of first fingerprint feature information and preset fingerprint feature information is greater than or equal to the acquisition The matching degree threshold value, being identified as finger print identifying successfully includes:
If the matching degree of first fingerprint feature information of each predeterminable area and preset fingerprint feature information be all larger than or Equal to corresponding matching degree threshold value, it is identified as finger print identifying success.
6. a kind of terminal, which is characterized in that the terminal includes:
First acquisition unit, if obtaining the of user's input for detecting the triggering command for carrying out authentication by fingerprint One fingerprint feature information；
Second acquisition unit for determining the corresponding predeterminable area of first fingerprint feature information, and obtains the determination The corresponding matching degree threshold value of predeterminable area；Wherein, predeterminable area is the finger that finger print identifying function and input reference are opened by user When line characteristic information, the corresponding fingerprint feature information of same finger that user repeatedly inputs is combined into one by terminal, formation The corresponding complete fingerprint feature information of the finger divides, and the corresponding finger comprising complete finger print characteristic information of the finger Print image is divided at least two predeterminable areas, and each predeterminable area is provided with a corresponding initial matching degree threshold value；Its In, the corresponding matching degree threshold value of each predeterminable area can dynamically adjust in finger print identifying function use process, specifically: every The corresponding matching degree threshold value of a predeterminable area is determined according to the number for the fingerprint feature information for detecting the predeterminable area, And the corresponding number of predeterminable area is higher, the corresponding matching degree threshold value of the predeterminable area is lower；
Control unit, if the matching degree for first fingerprint feature information and preset fingerprint feature information is greater than or equal to The matching degree threshold value of the acquisition is identified as finger print identifying success.
7. terminal according to claim 6, which is characterized in that the terminal further include:
History finger print information acquiring unit for obtaining the first history fingerprint feature information of user's input, and determines institute State the corresponding predeterminable area of the first history fingerprint feature information；
Matching degree threshold value acquiring unit, for the number according to the corresponding each predeterminable area of the first history fingerprint feature information Determine the corresponding matching degree threshold value of each predeterminable area.
8. terminal according to claim 6, which is characterized in that the terminal further include:
Determination unit for obtaining the second history fingerprint feature information of user's input, and determines that second history refers to The corresponding predeterminable area of line characteristic information；
Adjustment unit, for adjusting each institute according to the number of the corresponding each predeterminable area of the second history fingerprint feature information State the corresponding matching degree threshold value of predeterminable area.
9. according to the described in any item terminals of claim 6 to 8, which is characterized in that the second acquisition unit includes:
Security level determination unit, for determining the security level of the corresponding predeterminable area of first fingerprint feature information；
Matching degree threshold value acquiring unit, the corresponding matching degree threshold value of security level for obtaining the determination.
10. terminal according to claim 6, which is characterized in that the second acquisition unit is specifically used for determining described the Corresponding at least two predeterminable area of one fingerprint feature information, and obtain the corresponding matching of at least two predeterminable areas Spend threshold value；
If described control unit is specifically used for first fingerprint feature information and preset fingerprint characteristic of each predeterminable area The matching degree of information is all larger than or is equal to corresponding matching degree threshold value, is identified as finger print identifying success.
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