WO2017054285A1 - 一种指纹识别方法及移动终端 - Google Patents

一种指纹识别方法及移动终端 Download PDF

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Publication number
WO2017054285A1
WO2017054285A1 PCT/CN2015/093515 CN2015093515W WO2017054285A1 WO 2017054285 A1 WO2017054285 A1 WO 2017054285A1 CN 2015093515 W CN2015093515 W CN 2015093515W WO 2017054285 A1 WO2017054285 A1 WO 2017054285A1
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WO
WIPO (PCT)
Prior art keywords
fingerprint information
fingerprint
sub
splicing
unit
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Ceased
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PCT/CN2015/093515
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English (en)
French (fr)
Inventor
郭辰
徐宇杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Publication of WO2017054285A1 publication Critical patent/WO2017054285A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a fingerprint identification method and a mobile terminal.
  • the fingerprint identification process mainly includes the following steps: firstly collecting user fingerprint information in the fingerprint collection area on the mobile terminal, and then comparing the user fingerprint information with the pre-stored fingerprint information, when the user fingerprint information matches the pre-stored fingerprint information, User rights are available.
  • the criminals can quickly acquire the user fingerprint information by means of powder display method, smoke dyeing method, silver nitrate solution method, etc., thereby being easily Obtaining user rights and causing significant losses to users. It can be seen that the current fingerprint identification security is low.
  • the embodiment of the invention provides a fingerprint identification method and a mobile terminal, which can improve the security of fingerprint recognition.
  • a first aspect of the embodiments of the present invention provides a fingerprint identification method, including:
  • M is a positive integer greater than or equal to 2;
  • N is a positive integer greater than or equal to the M
  • the Fingerprint information selecting a target sub-fingerprint information from the N sub-fingerprint information segmented by the fingerprint information, including:
  • N sub-fingerprint information into which the fingerprint information is divided is numbered by 1, 2, . . . , N; and selected from the N sub-fingerprint information segmented by the fingerprint information.
  • the sub-fingerprint information whose number matches the acquisition order of the fingerprint information is used as the target sub-fingerprint information.
  • the target sub-fingerprint information is spliced into target fingerprint information, including:
  • the splicing fingerprint information includes a plurality of splicing fingerprint information, Determining whether the target fingerprint information matches the spliced fingerprint information stored in the fingerprint database, including:
  • the spliced fingerprint information includes M spliced sub-fingerprint information that matches the M target sub-fingerprint information
  • the method further includes:
  • the method further includes:
  • the step of collecting the M pieces of fingerprint information is performed when the access instruction is identified as a non-first access instruction for the fingerprint database;
  • a second aspect of the embodiments of the present invention provides a mobile terminal, including:
  • the acquiring unit is configured to collect M fingerprint information, where the M is a positive integer greater than or equal to 2;
  • a dividing unit configured to divide the fingerprint information into N sub-fingerprint information for each fingerprint information collected by the collecting unit, where N is a positive integer greater than or equal to the M;
  • a selecting unit configured to select, for each fingerprint information collected by the collecting unit, one target sub-fingerprint information from the N sub-fingerprint information segmented by the fingerprint information;
  • a splicing unit configured to splicing the M target sub-fingerprint information selected by the selecting unit into target fingerprint information
  • a first determining unit configured to determine whether the target fingerprint information spliced by the splicing unit matches the spliced fingerprint information stored in the fingerprint database
  • a determining unit configured to determine that the fingerprint recognition is successful when the first determining unit determines that the result is yes.
  • the selecting unit selects one target from the N sub-fingerprint information segmented by the fingerprint information for each fingerprint information collected by the collecting unit.
  • the way of sub-fingerprint information is as follows:
  • the selecting unit for each fingerprint information collected by the collecting unit, numbering the N sub-fingerprint information into which the fingerprint information is divided into 1, 2, . . . , N; and dividing the fingerprint information into Among the N sub-fingerprint information, the sub-fingerprint information whose number matches the collection order of the fingerprint information is selected as the target sub-fingerprint information.
  • the splicing unit includes:
  • a determining subunit configured to determine, according to an acquisition sequence of the fingerprint information corresponding to each target sub-fingerprint information of the M target sub-fingerprint information selected by the selecting unit, the M target sub-fingerprint information The splicing order of each target sub-fingerprint information;
  • a splicing subunit configured to splicing the M target sub-fingerprint information into target fingerprint information according to the splicing order.
  • the splicing fingerprint information includes a plurality of splicing fingerprint information
  • the first determining unit includes:
  • a first determining subunit configured to determine whether the spliced fingerprint information includes M splicing sub-fingerprint information that matches the M target sub-fingerprint information
  • a second determining sub-unit configured to determine, when the first determining sub-unit determines that the result is YES, whether the splicing order of the M splicing sub-fingerprint information is the same as the splicing order of the M target sub-fingerprint information;
  • the first determining unit determines that the result is YES.
  • the mobile terminal further includes:
  • a receiving unit configured to receive an access instruction for the fingerprint database
  • An identifying unit configured to identify whether the access instruction is a first access instruction for the fingerprint database
  • An obtaining unit configured to acquire an input security password when the recognition unit identifies that the result is YES;
  • a second determining unit configured to determine whether the security password matches a preset security password
  • the collecting unit is further configured to: when the second determining unit determines that the result is yes, collect the input at least two pieces of fingerprint information, and store the at least two pieces of fingerprint information in the fingerprint database;
  • a generating unit configured to receive a splicing instruction for at least two pieces of the at least two pieces of fingerprint information, generate the spliced fingerprint information, and store the spliced fingerprint information in the fingerprint database.
  • the mobile terminal further includes:
  • the collecting unit is triggered to collect M fingerprint information
  • an updating unit configured to receive, when the determining unit determines that fingerprint identification is successful, And updating the fingerprint information in the fingerprint database by updating the fingerprint information.
  • the mobile terminal collects M fingerprint information, where M is a positive integer greater than or equal to 2; for each fingerprint information collected, the fingerprint information is divided into N sub-fingerprint information, and N is greater than or equal to M. An integer; for each fingerprint information collected, one target sub-fingerprint information is selected from the N sub-fingerprint information segmented by the fingerprint information; the selected M target sub-fingerprint information is spliced into the target fingerprint information; and the target fingerprint information and the fingerprint database are determined. Whether the stitched fingerprint information stored in the match matches, and if it matches, it is determined that the fingerprint recognition is successful.
  • at least two fingerprint information needs to be collected for fingerprint identification, which can reduce the security threat faced by the mobile terminal after the single fingerprint information is stolen, and improve the security of the fingerprint identification.
  • FIG. 1 is a flowchart of a fingerprint identification method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of another fingerprint identification method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another mobile terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another mobile terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another mobile terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of fingerprint information selection according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another fingerprint information selection according to an embodiment of the present invention.
  • the embodiment of the invention provides a fingerprint identification method and a mobile terminal, which can improve the security of fingerprint recognition. The details are described below separately.
  • the mobile terminal described in the embodiment of the present invention may include: a mobile phone, a tablet computer, etc., and the foregoing mobile terminal is merely an example, and is not exhaustive, including but not limited to the above mobile terminal.
  • FIG. 1 is a flowchart of a fingerprint identification method according to an embodiment of the present invention. As shown in FIG. 1, the fingerprint identification method described in this embodiment includes the following steps:
  • the M fingerprint information may be collected by using a fingerprint information collector in the mobile terminal.
  • M is a positive integer greater than or equal to 2
  • the fingerprint information may be a detailed feature point of the fingerprint (for example, a line generated by unevenness on the front surface of the user's finger end, a start point, an end point, a joint point, and a bifurcation of the line) Points, and the lines are regularly arranged to form different patterns).
  • the M fingerprint information may be the fingerprint information of the ten fingers of the user.
  • the fingerprint information of the left thumb is "No. 1 fingerprint information”
  • the fingerprint information of the left index finger is used. For "No.
  • the fingerprint information of the left middle finger is “No. 3 fingerprint information”
  • the fingerprint information of the left hand ring finger is “No. 4 fingerprint information”
  • the fingerprint information of the left hand little finger is “No. 5 fingerprint information”
  • the fingerprint information of the right thumb is “Fingerprint No. 6”
  • the fingerprint information of the right index finger is “No. 7 fingerprint information”
  • the right hand finger fingerprint information is “No. 8 fingerprint information”
  • the right hand ring finger fingerprint information is “No. 9 fingerprint information”
  • the right hand little finger fingerprint information is “10”
  • Fingerprint information in which fingerprint information from 1 to 10 is different from each other.
  • the M fingerprint information may include the same fingerprint information. For example, when M is 8, the user may collect two fingerprint information 1 (left thumb fingerprint information) and two fingerprint information 2 (left index finger fingerprint information).
  • FIG. 8 is a schematic diagram of fingerprint information selection according to an embodiment of the present invention.
  • M is 4, and fingerprint information No. 1 and fingerprint No. 2 are respectively input in the fingerprint input box.
  • the information, the fingerprint information of the 3rd and the fingerprint information of the 4th, the mobile terminal collects 4 fingerprint information (left thumb thumbprint information, left index finger fingerprint information, left middle finger fingerprint information and left hand ring finger fingerprint information).
  • each of the M fingerprint information may be divided into N sub-fingerprint information, where N is a positive integer greater than or equal to M, and N sub-fingerprint information are different from each other, preferably, N is equal to M.
  • M is 4, wherein each fingerprint information is divided into 4 sub-fingerprint information.
  • fingerprint information 1 can be divided into first sub-fingerprint information, 2 sub-fingerprint information, third sub-fingerprint information, and fourth sub-fingerprint information.
  • the first sub-fingerprint information of the fingerprint information No. 1 is named 1-1
  • the second sub-fingerprint information of the fingerprint information No. 1 is named 1-2
  • the third sub-fingerprint information of the No. 1 fingerprint information is named 1-3
  • the fourth sub-fingerprint information of the No. 1 fingerprint information is named 1-4... ...,And so on.
  • a target sub-fingerprint information may be selected from the N sub-fingerprint information segmented by the fingerprint information according to a certain preset rule.
  • M is 4.
  • the fourth sub-fingerprint information (1-4) is selected as the target sub-fingerprint information from the fingerprint information No. 1, and the first sub-selection is selected from the second fingerprint information.
  • the fingerprint information (2-1) is used as the target sub-fingerprint information
  • the second sub-fingerprint information (3-2) is selected as the target sub-fingerprint information from the No. 3 fingerprint information
  • the third sub-fingerprint information is selected from the No. 4 fingerprint information. (4-3)
  • the target sub-fingerprint information is used as the target sub-fingerprint information.
  • step S103 may include:
  • the N sub-fingerprint information into which the fingerprint information is divided is numbered by 1, 2, . . . , N; and the number and fingerprint information are selected from the N sub-fingerprint information segmented by the fingerprint information.
  • the sub-fingerprint information matching the acquisition order is used as the target sub-fingerprint information.
  • the correspondence between the number and the collection order of the fingerprint information may be stored in the fingerprint database by the user in advance, and the correspondence between the number and the collection order of the fingerprint information may be various, even if the fingerprint information of the user is all It is stolen by criminals. The criminals do not know the order of collection, and cannot solve the fingerprint identification system.
  • the implementation of the embodiments of the present invention can greatly improve the security of fingerprint recognition.
  • the N sub-fingerprint information into which the fingerprint information is divided is numbered by 1, 2, ..., N.
  • FIG. 9 is a disclosure of an embodiment of the present invention. Another schematic diagram of fingerprint information selection, in FIG.
  • M is 4, wherein for each fingerprint information collected, the four sub-fingerprint information into which each fingerprint information is divided is numbered by 1, 2, 3, 4, 1
  • the order of collecting fingerprint information is 1, and the order of collecting fingerprint information is 2, the order of collecting fingerprint information is 3, the order of collecting fingerprint information is 4, and the first fingerprint information of fingerprint information is selected.
  • the second fingerprint information (2-2) as the target sub-fingerprint information and the second fingerprint information is used as the target sub-fingerprint information and the third fingerprint information
  • the fingerprint information (3-3) is used as the target sub-fingerprint information and the fourth fingerprint information (4-4) of the fingerprint information No. 4 as the target sub-fingerprint information.
  • the selected M target sub-fingerprint information is spliced into target fingerprint information.
  • M is 4.
  • the fourth sub-fingerprint information selected in the fingerprint information of No. 1 (1-4) the first sub-fingerprint information (2-1) selected from the 2nd fingerprint information, the second sub-fingerprint information (3-2) selected from the 3rd fingerprint information, and the third sub-fingerprint information selected from the 4th fingerprint information (4-3) splicing into target fingerprint information.
  • step S104 may include:
  • the M target sub-fingerprint information is spliced into the target fingerprint information according to the splicing order.
  • the correspondence between the collection order and the splicing order may be set in advance by the system, and different correspondences may correspond to multiple splicing possibilities. Even if the fingerprint information of the user is completely stolen by the illegal elements, the criminals do not know the collection order.
  • the splicing sequence and the fingerprint identification system cannot be solved.
  • the implementation of the embodiment of the present invention can greatly improve the security of fingerprint recognition.
  • the collection order may be set to be the first, the splicing order is first, the collection order is second, the splicing order is second, the collection order is third, and the splicing order is third... analogy. Please refer to FIG. 9 together. In FIG. 9 together.
  • M is 4, and the order of collecting fingerprint information is 1, and the order of collecting fingerprint information is 2, and the order of collecting fingerprint information is 3, 4 fingerprint information.
  • the acquisition order is 4, according to the acquisition order of the fingerprint information No. 1 (the acquisition order is 1), the splicing order of the target sub-fingerprint information (the first sub-fingerprint information, 1-1) selected in the fingerprint information of No.
  • the order of the fingerprint information collection 2 (the acquisition order is 2), the splicing order of the target sub-fingerprint information (the second sub-fingerprint information, 2-2) selected in the fingerprint information of the 2nd is 2; the collection of the fingerprint information according to the 3rd
  • the sequence acquisition order is 3
  • the splicing order of the target sub-fingerprint information (the third sub-fingerprint information, 3-3) selected in the fingerprint information No. 3 is 3
  • the acquisition order of the fingerprint information 4 (the acquisition order is 4)
  • determining that the target sub-fingerprint information (the fourth sub-fingerprint information, 4-4) selected in the fingerprint information No. 4 has a splicing order of four.
  • the first sub-fingerprint information (1-1) of the fingerprint information No. 1 is spliced to the first position
  • the second sub-fingerprint information (2-2) of the second fingerprint information is spliced to the second position
  • the third sub-fingerprint information (3-3) of the fingerprint information is spliced at the third position
  • the fourth sub-fingerprint information (4-4) of the fourth fingerprint information is spliced at the fourth position, that is, the target fingerprint information is obtained.
  • step S105 Determine whether the target fingerprint information matches the stitching fingerprint information stored in the fingerprint database. If yes, step S106 is performed. If not, the target fingerprint information and the stitching fingerprint information are not matched, and the flow is ended.
  • the fingerprint database in the mobile terminal may pre-store the spliced fingerprint information, and the spliced fingerprint information may be input by the user in advance and stored in the fingerprint database.
  • the user may input at least two fingerprint information in advance (for example, the user may Entering the fingerprint information of the ten fingers of the user in advance), the mobile terminal collects the input at least two fingerprint information, and stores at least two fingerprint information in the fingerprint database; according to the security level of the fingerprint identification, the user may select the intermediate security mode or The advanced security mode, in the intermediate security mode, receives a splicing instruction for at least two fingerprint information of at least two fingerprint information, and generates splicing fingerprint information according to a preset rule.
  • the intermediate security mode does not require the splicing order of the target sub-fingerprint information.
  • the intermediate security mode does not require the splicing order of the target sub-fingerprint information.
  • Information and fingerprint database pre-stored Whether the four fingerprint information matches, if the matching, the fingerprint identification is successful; in the advanced security mode, specifically, as shown in FIG. 9, for the four fingerprint information input by the user, one target sub-selection is selected from the four fingerprint information.
  • the fingerprint information is spliced into spliced fingerprint information according to the preset splicing order.
  • the advanced security mode When verifying the fingerprint, the advanced security mode not only needs to verify whether the four fingerprint information input by the user matches the four fingerprint information pre-stored in the fingerprint database, and also needs to verify the user.
  • the order of the input four fingerprint information is the same as the order of the pre-stored spliced fingerprint information in the fingerprint database. If the four fingerprint information input by the user matches the four fingerprint information pre-stored in the fingerprint database, and the four input by the user
  • the order of the fingerprint information is the same as the order of the stitched fingerprint information pre-stored in the fingerprint database, and the fingerprint recognition is successful.
  • the splicing fingerprint information includes a plurality of splicing sub-fingerprint information
  • step S105 may include:
  • the spliced fingerprint information includes M spliced sub-fingerprint information that matches the M target sub-fingerprint information
  • the splicing order of the M splicing fingerprint information is the same as the splicing order of the M target sub-fingerprint information, and if yes, determining that the target fingerprint information matches the splicing fingerprint information stored in the fingerprint database.
  • the spliced fingerprint information includes a plurality of spliced sub-fingerprint information, and the spliced sub-fingerprint information can be entered into the fingerprint database by the user in advance, and the user can input a plurality of spliced fingerprint information according to a certain input order, and several splicing fingerprints.
  • Information entry order and several stitching fingerprints There is a correspondence between the stitching order of the information.
  • the target fingerprint information is determined to match the stitched fingerprint information stored in the fingerprint database.
  • each target sub-fingerprint information needs to match the content and order of each splice sub-fingerprint information, and then the target fingerprint information is matched with the spliced fingerprint information stored in the fingerprint database, which greatly improves the fingerprint verification.
  • the complexity increases the security of fingerprint recognition.
  • M fingerprint information is collected, where M is a positive integer greater than or equal to 2; for each fingerprint information collected, the fingerprint information is segmented into N sub-fingerprint information, where N is a positive integer greater than or equal to M; For each fingerprint information collected, one target sub-fingerprint information is selected from the N sub-fingerprint information segmented by the fingerprint information; the selected M target sub-fingerprint information is spliced into the target fingerprint information; and the target fingerprint information is determined and stored in the fingerprint database. Whether the stitching fingerprint information matches, if it matches, it is determined that the fingerprint identification is successful. In the embodiment of the present invention, at least two fingerprint information needs to be collected for fingerprint identification, which can reduce the security threat faced by the mobile terminal after the single fingerprint information is stolen, and improve the security of the fingerprint identification.
  • FIG. 2 is a flowchart of another fingerprint identification method according to an embodiment of the present invention. As shown in FIG. 2, the fingerprint identification method described in this embodiment includes the following steps:
  • step S202 It is determined whether the access instruction is the first access instruction for the fingerprint database. If yes, step S203 is performed, and if no, step S206 is performed.
  • step S204 Determine whether the security password matches the preset security password; if yes, execute step S205; if not, the prompt security password does not match the preset security password.
  • S205 Receive a splicing instruction for at least two pieces of fingerprint information of at least two pieces of fingerprint information, generate spliced fingerprint information, and store the spliced fingerprint information in a fingerprint database.
  • the security password may be preset when the mobile terminal is shipped from the factory. If the user needs to pre-store the spliced fingerprint information or need to update the spliced fingerprint information, you need to access the fingerprint database. If you need to access the fingerprint database, you need to enter the security password or input the spliced fingerprint information for verification.
  • the user accesses the fingerprint database for the first time the user Need to enter a security password and enter the initial fingerprint information
  • the terminal stores the initial fingerprint information in the fingerprint database, selects at least two fingerprint information from the initial fingerprint information, and generates the spliced fingerprint information according to the at least two fingerprint information according to a certain rule.
  • the spliced fingerprint information needs to be input for verification.
  • the verification is passed, the new fingerprint information is re-entered, and the terminal generates new spliced fingerprint information according to the newly entered fingerprint information according to a certain rule, that is, the fingerprint database is updated.
  • the fingerprint information is divided into N sub-fingerprint information for each fingerprint information collected, where N is a positive integer greater than or equal to M.
  • the selected M target sub-fingerprint information is spliced into target fingerprint information.
  • step S210 Determine whether the target fingerprint information matches the spliced fingerprint information stored in the fingerprint database. If yes, execute step S211. If not, the target fingerprint information and the spliced fingerprint information do not match.
  • the splicing fingerprint information in the fingerprint database may be updated by: first verifying the existing fingerprint splicing information in the fingerprint database; after the verification is passed, inputting multiple fingerprint information in a certain order, and multiple fingerprints
  • the information is spliced into new spliced fingerprint information, or at least two fingerprint information are reselected from the initial fingerprint information input by the user, and at least two fingerprint information are spliced into new fingerprint information in a certain order; finally, the new spliced fingerprint information is spliced.
  • the existing fingerprint splicing information is replaced, and the new spliced fingerprint information is stored in the fingerprint database, that is, the splicing fingerprint information in the fingerprint database is updated. Regularly updating the stitched fingerprint information can effectively improve the security of fingerprint recognition.
  • receiving an access instruction for the fingerprint database identifying whether the access instruction is a first access instruction for the fingerprint database; if yes, obtaining the input security password; determining whether the security password matches the preset security password; if matching, collecting Entering at least two fingerprint information, storing at least two fingerprint information in the fingerprint database; receiving a splicing instruction for at least two of the at least two fingerprint information, generating splicing fingerprint information; collecting M fingerprint information, M is Greater than or equal to 2 A positive integer; for each fingerprint information collected, the fingerprint information is divided into N sub-fingerprint information, N is a positive integer greater than or equal to M; for each fingerprint information collected, from the N sub-fingerprint information segmented into the fingerprint information Selecting a target sub-fingerprint information; splicing the selected M target sub-fingerprint information into target fingerprint information; determining whether the target fingerprint information matches the spliced fingerprint information stored in the fingerprint database, and if the matching, determining that the fingerprint identification is successful, when the fingerprint
  • the embodiment of the present invention needs to collect at least two fingerprint information for fingerprint identification, which can reduce the security threat faced by the mobile terminal after the single fingerprint information is stolen, and improve the security of the fingerprint identification.
  • the splicing can be periodically updated.
  • Fingerprint information can also effectively improve the security of fingerprint recognition.
  • FIG. 3 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the mobile terminal described in this embodiment includes an acquisition unit 301, a division unit 302, a selection unit 303, a splicing unit 304, a first determination unit 305, and a determination unit 306, where:
  • the collecting unit 301 is configured to collect M fingerprint information, where M is a positive integer greater than or equal to 2.
  • the collecting unit 301 can collect M fingerprint information by using a fingerprint information collector in the mobile terminal.
  • M is a positive integer greater than or equal to 2
  • the fingerprint information may be a detailed feature point of the fingerprint (for example, a line generated by unevenness on the front surface of the user's finger end, a start point, an end point, a joint point, and a bifurcation of the line) Points, and the lines are regularly arranged to form different patterns).
  • the M fingerprint information may be the fingerprint information of the ten fingers of the user.
  • the fingerprint information of the left thumb is "No. 1 fingerprint information”
  • the fingerprint information of the left index finger is used.
  • the fingerprint information of the left middle finger is “No. 3 fingerprint information”
  • the fingerprint information of the left hand ring finger is “No. 4 fingerprint information”
  • the fingerprint information of the left hand little finger is “No. 5 fingerprint information”
  • the fingerprint information of the right thumb is “Fingerprint No. 6”
  • the fingerprint information of the right index finger is “No. 7 fingerprint information”
  • the right hand finger fingerprint information is “No. 8 fingerprint information”
  • the right hand ring finger fingerprint information is “No. 9 fingerprint information”
  • the right hand little finger fingerprint information is “10”
  • Fingerprint information in which fingerprint information from 1 to 10 is different from each other.
  • the M fingerprint information may include the same fingerprint information.
  • the collecting unit 301 may collect two fingerprint information of the user (left thumb fingerprint information) and two fingerprint information 2 (left index finger fingerprint). Information), 2 fingerprint information No. 3 (fingerprint information on the left middle finger), and two fingerprint information on the 4th (left hand ring finger fingerprint information).
  • FIG. 8 is a schematic diagram of fingerprint information selection according to an embodiment of the present invention.
  • M is 4, and fingerprint information No. 1 and fingerprint No. 2 are respectively input in the fingerprint input box.
  • the information, the fingerprint information No. 3 and the fingerprint information No. 4 the collecting unit 301 collects four fingerprint information (left hand respectively) Thumbprint information, left index finger index information, left middle finger fingerprint information and left hand ring finger fingerprint information).
  • the dividing unit 302 is configured to divide the fingerprint information into N sub-fingerprint information for each fingerprint information collected by the collecting unit 301, where N is a positive integer greater than or equal to M.
  • the dividing unit 302 divides the fingerprint information into N sub-fingerprint information, and each of the M fingerprint information may be divided into N sub-fingerprint information, wherein , N is a positive integer greater than or equal to M, and the N sub-fingerprint information are different from each other.
  • N is equal to M.
  • M is 4, wherein each fingerprint information is divided into 4 sub-fingerprint information.
  • fingerprint information 1 can be divided into first sub-fingerprint information, 2 sub-fingerprint information, third sub-fingerprint information, and fourth sub-fingerprint information.
  • the first sub-fingerprint information of the fingerprint information No. 1 is named 1-1
  • the second sub-fingerprint information of the fingerprint information No. 1 is named 1-2
  • the third sub-fingerprint information of the No. 1 fingerprint information is named 1-3
  • the fourth sub-fingerprint information of the No. 1 fingerprint information is named 1-4... ...,And so on.
  • the selecting unit 303 is configured to select, for each fingerprint information collected by the collecting unit 301, one target sub-fingerprint information from the N sub-fingerprint information segmented by the fingerprint information.
  • a target sub-fingerprint information may be selected from the N sub-fingerprint information segmented by the fingerprint information according to a certain preset rule.
  • M is 4.
  • the selecting unit 303 selects the fourth sub-fingerprint information (1-4) from the fingerprint information No. 1 as the target sub-fingerprint information, and from the fingerprint information No. 2
  • the first sub-fingerprint information (2-1) is selected as the target sub-fingerprint information
  • the second sub-fingerprint information (3-2) is selected as the target sub-fingerprint information from the No. 3 fingerprint information
  • the fingerprint information is selected from the No. 4 fingerprint information.
  • the third sub-fingerprint information (4-3) is used as the target sub-fingerprint information.
  • the manner in which the selecting unit 303 selects one target sub-fingerprint information from the N sub-fingerprint information segmented by the fingerprint information for each fingerprint information collected by the collecting unit 301 is specifically:
  • the selecting unit 303 for each fingerprint information collected by the collecting unit 301, numbers the N sub-fingerprint information into which the fingerprint information is divided into 1, 2, . . . , N; and, among the N sub-fingerprint information segmented into the fingerprint information, The sub-fingerprint information whose number is matched with the acquisition order of the fingerprint information is selected as the target sub-fingerprint information.
  • the correspondence between the number and the collection order of the fingerprint information may be stored in the fingerprint database by the user in advance, and the correspondence between the number and the collection order of the fingerprint information may be There are many kinds of ways, even if the fingerprint information of the user is completely stolen by the criminals, the criminals do not know the collection order, and the fingerprint identification system cannot be cracked.
  • the implementation of the embodiment of the invention can greatly improve the security of the fingerprint recognition.
  • the selection unit 303 numbers the N sub-fingerprint information into which the fingerprint information is divided into 1, 2, ..., N. For example, please refer to FIG. 9 and FIG. 9 together.
  • M is 4, wherein, for each fingerprint information collected by the collecting unit 301, the selecting unit 303 numbers the four sub-fingerprint information into which each fingerprint information is divided into 1, 2, 3, and 4, and collects the fingerprint information of the first.
  • the order of collecting fingerprint information in sequence 1 and 2 is 2, the order of collecting fingerprint information is 3, the order of collecting fingerprint information is 4, and the first fingerprint information of fingerprint information 1 is selected (1-1)
  • the second fingerprint information (2-2) as the target sub-fingerprint information and the second fingerprint information is used as the target sub-fingerprint information and the third fingerprint information (3-3) of the third fingerprint information as the target sub-fingerprint information, No. 4
  • the fourth fingerprint information (4-4) of the fingerprint information is used as the target sub-fingerprint information.
  • the splicing unit 304 is configured to splicing the M target sub-fingerprint information selected by the selecting unit 303 into the target fingerprint information.
  • the splicing unit 304 splices the M target sub-fingerprint information selected by the selecting unit 303 into the target fingerprint information.
  • M is 4.
  • the fourth sub-fingerprint information (1-4) and the second fingerprint information selected in the fingerprint information of No. 1 are obtained.
  • the first sub-fingerprint information (2-1) selected in the first sub-fingerprint information (3-2) selected from the third sub-fingerprint information, and the third sub-fingerprint information (4-3) selected from the fourth-numbered fingerprint information are stitched together.
  • Target fingerprint information is stitched together.
  • FIG. 4 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention, where the splicing unit 304 includes:
  • the determining subunit 3401 is configured to determine, according to the acquiring sequence of the fingerprint information corresponding to each target sub-fingerprint information of the M target sub-fingerprint information selected by the selecting unit 303, each target sub-fingerprint information of the M target sub-fingerprint information. Splicing order;
  • the splicing subunit 3402 is configured to splicing the M target sub-fingerprint information into the target fingerprint information according to the splicing order.
  • the correspondence between the collection order and the splicing order may be set in advance by the system, and different correspondences may correspond to multiple splicing possibilities. Even if the fingerprint information of the user is completely stolen by the illegal elements, the criminals do not know the collection order.
  • the splicing sequence and the fingerprint identification system cannot be solved.
  • the implementation of the embodiment of the present invention can greatly improve the security of fingerprint recognition.
  • the acquisition sequence can be set to be the first
  • the splicing order is the first
  • the collection order is the second
  • the splicing order is the second.
  • the order is third
  • the stitching order is the third..., and so on. Please refer to FIG. 9 together. In FIG. 9 together.
  • M is 4, and the order of collecting fingerprint information is 1, and the order of collecting fingerprint information is 2, and the order of collecting fingerprint information is 3, 4 fingerprint information.
  • the acquisition sequence is 4.
  • the determination sub-unit 3401 determines the target sub-fingerprint information selected in the fingerprint information 1 (the first sub-fingerprint information, 1- 1) the splicing order is 1;
  • the determining subunit 3401 determines the target sub-fingerprint information selected in the 2nd fingerprint information (the second sub-fingerprint information) 2-2) the splicing order is 2;
  • the determining subunit 3401 determines the target sub-fingerprint information selected in the 3rd fingerprint information (3rd)
  • the sub-fingerprint information, 3-3) is spliced in order of 3;
  • the fourth sub-fingerprint information, 4- 4 The stitching order is 4. Then, the splicing subunit 3402 splicing the first sub-fingerprint information (1-1) of the No. 1 fingerprint information to the first position, and splicing the second sub-fingerprint information (2-2) of the No. 2 fingerprint information to the second one. Position, splicing the third sub-fingerprint information (3-3) of the fingerprint information No. 3 to the third position, and splicing the fourth sub-fingerprint information (4-4) of the fourth fingerprint information to the fourth position, that is, Target fingerprint information.
  • the first determining unit 305 is configured to determine whether the target fingerprint information spliced by the splicing unit 304 matches the spliced fingerprint information stored in the fingerprint database.
  • the first determining unit 305 determines whether the target fingerprint information spliced by the splicing unit 304 matches the spliced fingerprint information stored in the fingerprint database.
  • the fingerprint database in the mobile terminal may pre-store the spliced fingerprint information, and the spliced fingerprint information may be input by the user in advance and stored in the fingerprint database. For example, the user may input at least two fingerprint information in advance (for example, the user may input the user's ten in advance).
  • the mobile terminal collects at least two fingerprint information input, and stores at least two fingerprint information in the fingerprint database; according to the security level of the fingerprint recognition, the user may select an intermediate security mode or an advanced security mode, at the intermediate level In the security mode, the splicing instruction for at least two fingerprint information of at least two pieces of fingerprint information is received, and the splicing fingerprint information is generated according to a preset rule. Specifically, refer to FIG. 8 , and input four fingerprint information for the user, from the four In the fingerprint information, a target sub-fingerprint information is selected and spliced into spliced fingerprint information.
  • the intermediate security mode does not require the splicing order of the target sub-fingerprint information.
  • the advanced security mode specifically, please refer to Figure 9, for the four fingerprint information input by the user, from the four fingerprint letters A target sub-fingerprint information is selected in the interest, and the spliced fingerprint information is spliced according to the preset splicing order.
  • the advanced security mode not only needs to verify the four fingerprint information input by the user and the four fingerprint information pre-stored in the fingerprint database.
  • the order of the four fingerprint information input by the user is the same as the order of the pre-stored spliced fingerprint information in the fingerprint database, and if the four fingerprint information input by the user matches the four fingerprint information pre-stored in the fingerprint database.
  • the order of the four fingerprint information input by the user is the same as the order of the spliced fingerprint information pre-stored in the fingerprint database, and the fingerprint recognition is successful.
  • FIG. 5 is a schematic structural diagram of another mobile terminal according to an embodiment of the present disclosure.
  • the splicing fingerprint information includes a plurality of splicing sub-fingerprint information, where the first determining unit 305 includes:
  • the first determining sub-unit 3501 is configured to determine whether the spliced fingerprint information includes M splicing sub-fingerprint information that matches the M target sub-fingerprint information;
  • the second determining sub-unit 3502 is configured to determine, when the first determining sub-unit 3501 determines that the result is YES, whether the splicing order of the M splicing sub-fingerprint information and the splicing order of the M target sub-fingerprint information are the same;
  • the first judgment unit 305 is triggered to determine that the result is YES.
  • the spliced fingerprint information includes a plurality of spliced sub-fingerprint information
  • the spliced sub-fingerprint information can be entered into the fingerprint database by the user in advance, and the user can input a plurality of spliced fingerprint information according to a certain input order, and several splicing fingerprints.
  • the order in which the information is entered has a corresponding relationship with the splicing order of the plurality of spliced fingerprint information.
  • the first determining sub-unit 3501 determines whether the spliced fingerprint information includes M splicing sub-fingerprint information that matches the M target sub-fingerprint information, and if so, the second determining sub-unit 3502 determines the splicing order of the M spliced sub-fingerprint information. Whether the splicing order of the M target sub-fingerprint information is the same, if the same, the target fingerprint information is determined to match the spliced fingerprint information stored in the fingerprint database, and the first judgment unit 305 is triggered to determine that the result is YES.
  • each target sub-fingerprint information needs to match the content and order of each splice sub-fingerprint information, and then the target fingerprint information is matched with the spliced fingerprint information stored in the fingerprint database, which greatly improves the fingerprint verification.
  • the complexity increases the security of fingerprint recognition.
  • the determining unit 306 is configured to determine that the fingerprint recognition is successful when the first determining unit 305 determines that the result is YES.
  • the collecting unit 301 collects M fingerprint information, where M is a positive integer greater than or equal to 2.
  • the segmentation unit 302 divides the fingerprint information into N sub-fingerprint information, N is a positive integer greater than or equal to M; for each fingerprint information collected, the selecting unit 303 is segmented from the fingerprint information.
  • One target sub-fingerprint information is selected from the N sub-fingerprint information; the splicing unit 304 splices the selected M target sub-fingerprint information into the target fingerprint information; the first determining unit 305 determines whether the target fingerprint information matches the spliced fingerprint information stored in the fingerprint database. If it matches, the determining unit 306 determines that the fingerprint recognition is successful.
  • the implementation of the embodiment of the present invention requires the collection unit 301 to collect at least two fingerprint information for fingerprint identification, which can reduce the security threat faced by the mobile terminal after the single fingerprint information is stolen, and improve the security of the fingerprint identification.
  • FIG. 6 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention.
  • the mobile terminal described in this embodiment includes, in addition to the collection unit 301, the division unit 302, the selection unit 303, the splicing unit 304, the first determination unit 305, and the determination unit 306 shown in FIG.
  • a receiving unit 307, an identifying unit 308, an obtaining unit 309, a second determining unit 310, a generating unit 311, and an updating unit 312 are further included, wherein:
  • the receiving unit 307 is configured to receive an access instruction for the fingerprint database.
  • the identifying unit 308 is configured to identify whether the access instruction is a first access instruction for the fingerprint database.
  • the obtaining unit 309 is configured to obtain the input security password when the recognition unit 308 identifies that the result is YES.
  • the second determining unit 310 is configured to determine whether the security password acquired by the obtaining unit 309 matches the preset security password.
  • the collecting unit 301 is further configured to: when the second determining unit 310 determines that the result is yes, collect the input at least two pieces of fingerprint information, and store at least two pieces of fingerprint information in the fingerprint database;
  • the generating unit 311 is configured to receive a splicing instruction for at least two pieces of the at least two pieces of fingerprint information, generate spliced fingerprint information, and store the spliced fingerprint information in the fingerprint database.
  • the receiving unit 307 receives an access instruction for the fingerprint database; the identifying unit 308 identifies, according to the access instruction received by the receiving unit 307, whether the access instruction is the first access instruction for the fingerprint database; when the recognition unit 308 identifies the result as yes.
  • the obtaining unit 309 obtains the input security password; the second determining unit 31 determines whether the security password acquired by the obtaining unit 309 matches the preset security password; when the second determining unit 310 determines that the result is yes, the collecting unit 301 collects at least the input.
  • the two fingerprint information stores at least two pieces of fingerprint information in the fingerprint database; the generating unit 311 receives the splicing instruction for at least two of the at least two pieces of fingerprint information collected by the collecting unit 301, generates stitching fingerprint information, and splicing
  • the fingerprint information is stored in the fingerprint database.
  • the security password can be mobile
  • the terminal is preset at the factory. In the specific scenario, if the user needs to pre-store the spliced fingerprint information or need to update the spliced fingerprint information, you need to access the fingerprint database. If you need to access the fingerprint database, you need to enter the security password or input the spliced fingerprint information for verification. When the user accesses the fingerprint for the first time.
  • the user In the database, the user needs to input a security password and input initial fingerprint information.
  • the terminal stores the initial fingerprint information in the fingerprint database, selects at least two fingerprint information from the initial fingerprint information, and generates according to the at least two fingerprint information according to a certain rule.
  • the user When the user does not access the fingerprint database for the first time, the user needs to input the spliced fingerprint information for verification.
  • the verification When the verification is passed, the user inputs multiple fingerprint information in a certain order, and splicing multiple fingerprint information into a new splicing fingerprint.
  • the updating unit 312 is configured to, when the determining unit 306 determines that the fingerprint identification is successful, receive an update instruction for the spliced fingerprint information, and update the spliced fingerprint information in the fingerprint database.
  • the update unit 312 may update the spliced fingerprint information in the fingerprint database.
  • the update unit 312 may first verify the existing fingerprint splicing information in the fingerprint database; after the verification is passed, input multiple fingerprints in a certain order.
  • the new spliced fingerprint information replaces the existing fingerprint splicing information, that is, the update of the spliced fingerprint information in the fingerprint database is completed. Regularly updating the stitched fingerprint information can effectively improve the security of fingerprint recognition.
  • the receiving unit 307 receives an access instruction for the fingerprint database; the identifying unit 308 identifies whether the access instruction is the first access instruction for the fingerprint database; when the recognition unit 308 identifies the result as YES, the obtaining unit 309 acquires the input security.
  • the second judging unit 310 determines whether the security password acquired by the obtaining unit 309 matches the preset security password. When the second judging unit 310 determines that the result is yes, the collecting unit 301 collects at least two input fingerprint information, at least two.
  • the fingerprinting information is stored in the fingerprint database; the generating unit 311 receives the splicing instruction for at least two of the at least two fingerprint information, and generates the splicing fingerprint information; the collecting unit 301 collects the M fingerprint information, where M is greater than or equal to 2.
  • the segmentation unit 302 divides the fingerprint information into N sub-fingerprint information, N is a positive integer greater than or equal to M; for each fingerprint information collected, a unit is selected 303: selecting one target sub-fingerprint information from the N sub-fingerprint information segmented by the fingerprint information; the splicing unit 304 splicing the selected M target sub-fingerprint information into the target fingerprint information; the first determining unit 305 determining the target fingerprint information and the fingerprint database Whether the stored spliced fingerprint information matches, if the matching, the determining unit 306 determines that the fingerprint identification is successful; when the determining unit 306 determines that the fingerprint identification is successful, the updating unit 312 receives the update instruction for the spliced fingerprint information, and performs the splicing fingerprint information in the fingerprint database.
  • the collecting unit 301 needs to collect at least two pieces of fingerprint information for fingerprint identification, which can reduce the security threat faced by the mobile terminal after the single fingerprint information is stolen, thereby improving the security of the fingerprint identification, and at the same time, updating the unit. 312 can periodically update the stitching fingerprint information, and can also effectively improve the security of fingerprint recognition.
  • FIG. 7 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention.
  • the mobile terminal may include a processor 1001, a memory 1002, and a fingerprint information collector 1003, wherein the processor 1001 is connected to the memory 1002 and the fingerprint information collector 1003 via a bus, wherein the memory 1002
  • the processor 1001 is configured to read the fingerprint recognition program stored in the memory 1002 to perform the following operations:
  • M is a positive integer greater than or equal to 2;
  • the fingerprint information is divided into N sub-fingerprint information, where N is a positive integer greater than or equal to M;
  • one target sub-fingerprint information is selected from the N sub-fingerprint information segmented by the fingerprint information;
  • the target fingerprint information matches the spliced fingerprint information stored in the fingerprint database, and if it matches, the fingerprint identification is determined to be successful.
  • the processor 1001 selects, for each fingerprint information collected by the fingerprint information collector 1003, a target sub-fingerprint information from the N sub-fingerprint information segmented by the fingerprint information, including:
  • the N sub-fingerprint information into which the fingerprint information is segmented is numbered by 1, 2, . . . , N; and, among the N sub-fingerprint information segmented into the fingerprint information, the N fingerprint information is selected.
  • the sub-fingerprint information whose number matches the acquisition order of the fingerprint information is used as the target sub-fingerprint information.
  • the processor 1001 splicing the selected M target sub-fingerprint information into the target fingerprint information, including:
  • the M target sub-fingerprint information is spliced into target fingerprint information according to the splicing order.
  • the spliced fingerprint information includes a plurality of spliced sub-fingerprint information
  • the processor 1001 determines whether the target fingerprint information matches the spliced fingerprint information stored in the fingerprint database, including:
  • the spliced fingerprint information includes M spliced sub-fingerprint information that matches the M target sub-fingerprint information
  • the splicing order of the M splicing fingerprint information is the same as the splicing order of the M target sub-fingerprint information, and if yes, determining that the target fingerprint information matches the splicing fingerprint information stored in the fingerprint database.
  • the processor 1001 performs the following operations before acquiring the M fingerprint information:
  • the processor 1001 performs the following operations when identifying that the access instruction is a non-first access instruction for the fingerprint database:
  • M is a positive integer greater than or equal to 2;
  • the fingerprint information is divided into N sub-fingerprint information, where N is a positive integer greater than or equal to M;
  • the update instruction for the spliced fingerprint information is received, and the spliced fingerprint information in the fingerprint database is updated.
  • the mobile terminal described in FIG. 7 needs to collect at least two fingerprint information for fingerprint recognition, and after a single fingerprint information is stolen, the security threat faced by the mobile terminal can be reduced, thereby improving the security of fingerprint recognition.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

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Abstract

本发明实施例公开了一种指纹识别方法及移动终端，该方法包括：采集M个指纹信息，M为大于或等于2的正整数；针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；将选择的M个目标子指纹信息拼接成目标指纹信息；判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，则确定指纹识别成功。实施本发明实施例，可以提高指纹识别的安全性。

Description

一种指纹识别方法及移动终端 技术领域
本发明涉及通信技术领域，具体涉及一种指纹识别方法及移动终端。
背景技术
随着信息技术的快速发展，指纹识别技术以其唯一性好、稳定性强等特点，被大量应用在手机、平板电脑等移动终端上。指纹识别过程主要包括如下步骤：首先在移动终端上的指纹采集区采集用户指纹信息，然后将用户指纹信息和预先存储的指纹信息进行比较，当用户指纹信息和预先存储的指纹信息匹配时，即可获得用户权限。然而，目前的指纹识别过程中，若用户在移动终端的指纹采集区上留下指纹信息，不法分子可以通过粉末显现法、熏染法、硝酸银溶液法等方法快速获取用户指纹信息，从而可以轻易的获得用户权限，对用户造成重大损失。可见，目前的指纹识别安全性较低。
发明内容
本发明实施例提供一种指纹识别方法及移动终端，可以提高指纹识别的安全性。
本发明实施例第一方面，提供了一种指纹识别方法，包括：
采集M个指纹信息，所述M为大于或等于2的正整数；
针对采集的每个指纹信息，将所述指纹信息分割为N个子指纹信息，所述N为大于或等于所述M的正整数；
针对采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；
将选择的M个目标子指纹信息拼接成目标指纹信息；
判断所述目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，则确定指纹识别成功。
在本发明实施例第一方面的第一种可能的实现方式中，所述针对采集的每 个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息，包括：
针对采集的每个指纹信息，将所述指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从所述指纹信息分割成的N个子指纹信息中，选取出编号与所述指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
结合本发明实施例第一方面或本发明实施例第一方面的第一种可能的实现方，在本发明实施例第一方面的第二种可能的实现方式中，所述将选择的M个目标子指纹信息拼接成目标指纹信息，包括：
根据所述M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定所述M个目标子指纹信息中的每个目标子指纹信息的拼接顺序；
将所述M个目标子指纹信息按照所述拼接顺序拼接成目标指纹信息。
结合本发明实施例第一方面的第二种可能的实现方式，在本发明实施例第一方面的第三种可能的实现方式中，所述拼接指纹信息包括若干个拼接子指纹信息，所述判断所述目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，包括：
判断所述拼接指纹信息中是否包含与所述M个目标子指纹信息匹配的M个拼接子指纹信息；
若是，判断所述M个拼接子指纹信息的拼接顺序与所述M个目标子指纹信息的拼接顺序是否相同，若是，则确定所述目标指纹信息与所述指纹数据库中存储的拼接指纹信息匹配。
结合本发明实施例第一方面或本发明实施例第一方面的第一种至第三种中任一种可能的实现方式，在本发明实施例第一方面的第四种可能的实现方式中，所述采集M个指纹信息之前，所述方法还包括：
接收针对所述指纹数据库的访问指令；
识别所述访问指令是否为针对所述指纹数据库的首次访问指令；
若是，获取输入的安全密码；
判断所述安全密码与预置安全密码是否匹配；
若匹配，采集输入的至少两个指纹信息，将所述至少两个指纹信息存储在所述指纹数据库中；
接收针对所述至少两个指纹信息中至少两个指纹信息的拼接指令，生成所 述拼接指纹信息，并将所述拼接指纹信息存储在所述指纹数据库中。
结合本发明实施例第一方面的第四种可能的实现方式，在本发明实施例第一方面的第五种可能的实现方式中，所述方法还包括：
当识别所述访问指令为针对所述指纹数据库的非首次访问指令时，执行所述采集M个指纹信息的步骤；
当所述指纹识别成功时，接收针对所述拼接指纹信息的更新指令，对所述指纹数据库中的所述拼接指纹信息进行更新。
本发明实施例第二方面，提供了一种移动终端，包括：
采集单元，用于采集M个指纹信息，所述M为大于或等于2的正整数；
分割单元，用于针对所述采集单元采集的每个指纹信息，将所述指纹信息分割为N个子指纹信息，所述N为大于或等于所述M的正整数；
选取单元，用于针对所述采集单元采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；
拼接单元，用于将所述选取单元选择的M个目标子指纹信息拼接成目标指纹信息；
第一判断单元，用于判断所述拼接单元拼接成的所述目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配；
确定单元，用于当所述第一判断单元判断结果为是时，确定指纹识别成功。
在本发明实施例第二方面的第一种可能的实现方式中，所述选取单元针对所述采集单元采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息的方式具体为：
所述选取单元针对所述采集单元采集的每个指纹信息，将所述指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从所述指纹信息分割成的N个子指纹信息中，选取出编号与所述指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
结合本发明实施例第二方面或本发明实施例第二方面的第一种可能的实现方式，在本发明实施例第二方面的第二种可能的实现方式中，所述拼接单元包括：
确定子单元，用于根据所述选取单元选择的所述M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定所述M个目标子指纹信息中 的每个目标子指纹信息的拼接顺序；
拼接子单元，用于将所述M个目标子指纹信息按照所述拼接顺序拼接成目标指纹信息。
结合本发明实施例第二方面的第二种可能的实现方式，在本发明实施例第二方面的第三种可能的实现方式中，所述拼接指纹信息包括若干个拼接子指纹信息，所述第一判断单元包括：
第一判断子单元，用于判断所述拼接指纹信息中是否包含与所述M个目标子指纹信息匹配的M个拼接子指纹信息；
第二判断子单元，用于当所述第一判断子单元判断结果为是时，判断所述M个拼接子指纹信息的拼接顺序与所述M个目标子指纹信息的拼接顺序是否相同；
其中，当所述第二判断子单元判断结果为是时，所述第一判断单元判断结果为是。
结合本发明实施例第二方面或本发明实施例第二方面的第一种至第三种中任一种可能的实现方式，在本发明实施例第二方面的第四种可能的实现方式中，所述移动终端还包括：
接收单元，用于接收针对所述指纹数据库的访问指令；
识别单元，用于识别所述访问指令是否为针对所述指纹数据库的首次访问指令；
获取单元，用于当所述识别单元识别结果为是时，获取输入的安全密码；
第二判断单元，用于判断所述安全密码与预置安全密码是否匹配；
采集单元，还用于当所述第二判断单元判断结果为是时，采集输入的至少两个指纹信息，将所述至少两个指纹信息存储在所述指纹数据库中；
生成单元，用于接收针对所述至少两个指纹信息中至少两个指纹信息的拼接指令，生成所述拼接指纹信息，并将所述拼接指纹信息存储在所述指纹数据库中。
结合本发明实施例第二方面的第四种可能的实现方式，在本发明实施例第二方面的第五种可能的实现方式中，所述移动终端还包括：
当所述第二判断单元判断结果为是时，触发所述采集单元采集M个指纹信息；
更新单元，用于当所述确定单元确定指纹识别成功时，接收针对所述拼接 指纹信息的更新指令，对所述指纹数据库中的所述拼接指纹信息进行更新。
本发明实施例中，移动终端采集M个指纹信息，M为大于或等于2的正整数；针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；将选择的M个目标子指纹信息拼接成目标指纹信息；判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，则确定指纹识别成功。实施本发明实施例，需要采集至少两个指纹信息进行指纹识别，可以在单个指纹信息被盗取后，降低移动终端面临的安全威胁，提高了指纹识别的安全性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例公开的一种指纹识别方法的流程图；
图2是本发明实施例公开的另一种指纹识别方法的流程图；
图3是本发明实施例公开的一种移动终端的结构示意图；
图4是本发明实施例公开的另一种移动终端的结构示意图；
图5是本发明实施例公开的另一种移动终端的结构示意图；
图6是本发明实施例公开的另一种移动终端的结构示意图；
图7是本发明实施例公开的另一种移动终端的结构示意图；
图8是本发明实施例公开的一种指纹信息选取示意图；
图9是本发明实施例公开的另一种指纹信息选取示意图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。显然，所描述的实施方式是本发明的一部分实施方式，而不是全部实施方式。基于本发明中的实施方式，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施方式，都应属于本发明保护的 范围。
本发明实施例提供一种指纹识别方法及移动终端，可以提高指纹识别的安全性。以下分别进行详细说明。
本发明实施例中描述的移动终端可包括：手机、平板电脑等，上述移动终端仅是举例，而非穷举，包含但不限于上述移动终端。
请参阅图1，图1是本发明实施例公开的一种指纹识别方法的流程图。如图1所示，本实施例中所描述的指纹识别方法，包括步骤：
S101，采集M个指纹信息，M为大于或等于2的正整数。
本发明实施例中，可以通过移动终端中的指纹信息采集器采集M个指纹信息。其中，M为大于或等于2的正整数，指纹信息可以是指纹的细节特征点(例如，用户的手指末端正面皮肤上凸凹不平产生的纹线，纹线的起点、终点、结合点和分叉点，以及纹线有规律的排列形成不同的纹型)。M个指纹信息可以是用户的十个手指头的指纹信息，为了方便阐述本发明实施例和后续的实施例，做以下规定：左手大拇指指纹信息为“1号指纹信息”，左手食指指纹信息为“2号指纹信息”，左手中指指纹信息为“3号指纹信息”，左手无名指指纹信息为“4号指纹信息”，左手小拇指指纹信息为“5号指纹信息”，右手大拇指指纹信息为“6号指纹信息”，右手食指指纹信息为“7号指纹信息”，右手中指指纹信息为“8号指纹信息”，右手无名指指纹信息为“9号指纹信息”，右手小拇指指纹信息为“10号指纹信息”，其中，1～10号指纹信息互不相同。M个指纹信息中可以包括相同的指纹信息，例如，M为8时，可以采集用户的2个1号指纹信息(左手大拇指指纹信息)、2个2号指纹信息(左手食指指纹信息)、2个3号指纹信息(左手中指指纹信息)、2个4号指纹信息(左手无名指指纹信息)。举例来说，请一并参见图8，图8是本发明实施例公开的一种指纹信息选取示意图，图8中，M为4，在指纹输入框中分别输入1号指纹信息、2号指纹信息、3号指纹信息和4号指纹信息，移动终端采集4个指纹信息(分别为左手大拇指指纹信息、左手食指指纹信息、左手中指指纹信息和左手无名指指纹信息)。
S102，针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数。
本发明实施例中，M个指纹信息中的每个指纹信息均可以分割为N个子指纹信息，其中，N为大于或等于M的正整数，N个子指纹信息互不相同，优选的， N等于M。举例来说，请一并参见图8，图8中，M为4，其中，每个指纹信息均被分割为4个子指纹信息，例如，1号指纹信息可以分割为第1子指纹信息、第2子指纹信息、第3子指纹信息和第4子指纹信息，为了方便阐述，在本发明实施例及后续实施例中，将1号指纹信息的第1子指纹信息命名为1-1，将1号指纹信息的第2子指纹信息命名为1-2，将1号指纹信息的第3子指纹信息命名为1-3，将1号指纹信息的第4子指纹信息命名为1-4……，依次类推。
S103，针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息。
本发明实施例中，针对采集的每个指纹信息，可以按照一定预设的规则，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息，例如，请一并参见图8，图8中，M为4，从图8中可以看出，从1号指纹信息中选取了第4个子指纹信息(1-4)作为目标子指纹信息，从2号指纹信息中选取了第1个子指纹信息(2-1)作为目标子指纹信息，从3号指纹信息中选取了第2个子指纹信息(3-2)作为目标子指纹信息，从4号指纹信息中选取了第3个子指纹信息(4-3)作为目标子指纹信息。
在一些可行的实施方式中，步骤S103可以包括：
针对采集的每个指纹信息，将指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从指纹信息分割成的N个子指纹信息中，选取出编号与指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
本发明实施例中，编号与指纹信息的采集顺序的对应关系可以由用户事先设定存储在指纹数据库中，由于编号与指纹信息的采集顺序的对应关系可以有很多种，即使用户的指纹信息全部被不法分子盗取，不法分子不知道采集顺序，也无法破解指纹识别系统，实施本发明实施例可以极大的提高指纹识别的安全性。针对采集的每个指纹信息，将指纹信息分割成的N个子指纹信息按1，2，……，N进行编号，举例来说，请一并参见图9，图9是本发明实施例公开的另一种指纹信息选取示意图，图9中，M为4，其中，针对采集的每个指纹信息，将每个指纹信息分割成的4个子指纹信息按1，2，3，4进行编号，1号指纹信息的采集顺序为1，2号指纹信息的采集顺序为2，3号指纹信息的采集顺序为3，4号指纹信息的采集顺序为4，选取1号指纹信息的第1个指纹信息(1-1)作为目标子指纹信息、2号指纹信息的第2个指纹信息(2-2)作为目标子指纹信息、3号指纹信息的第3 个指纹信息(3-3)作为目标子指纹信息、4号指纹信息的第4个指纹信息(4-4)作为目标子指纹信息。
S104，将选择的M个目标子指纹信息拼接成目标指纹信息。
本发明实施例中，举例来说，请一并参见图8，图8中，M为4，从图8中可以看出，将1号指纹信息中选取的第4个子指纹信息(1-4)、2号指纹信息中选取的第1个子指纹信息(2-1)、3号指纹信息中选取的第2个子指纹信息(3-2)、4号指纹信息中选取的第3个子指纹信息(4-3)拼接成目标指纹信息。
在一些可行的实施方式中，步骤S104可以包括：
根据M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定M个目标子指纹信息中的每个目标子指纹信息的拼接顺序；
将M个目标子指纹信息按照该拼接顺序拼接成目标指纹信息。
本发明实施例中，采集顺序与拼接顺序的对应关系可以由系统预先进行设定，不同的对应关系对应多种拼接可能，即使用户的指纹信息全部被不法分子盗取，不法分子不知道采集顺序和拼接顺序，也无法破解指纹识别系统，实施本发明实施例可以极大的提高指纹识别的安全性。举例来说，可以设定采集顺序为第一的，拼接顺序为第一，采集顺序为第二的，拼接顺序为第二，采集顺序为第三的，拼接顺序为第三……，以此类推。请一并参见图9，图9中，M为4，1号指纹信息的采集顺序为1，2号指纹信息的采集顺序为2，3号指纹信息的采集顺序为3，4号指纹信息的采集顺序为4，根据1号指纹信息的采集顺序(采集顺序为1)，确定1号指纹信息中选取的目标子指纹信息(第1个子指纹信息，1-1)的拼接顺序为1；根据2号指纹信息的采集顺序(采集顺序为2)，确定2号指纹信息中选取的目标子指纹信息(第2个子指纹信息，2-2)的拼接顺序为2；根据3号指纹信息的采集顺序(采集顺序为3)，确定3号指纹信息中选取的目标子指纹信息(第3个子指纹信息，3-3)的拼接顺序为3；根据4号指纹信息的采集顺序(采集顺序为4)，确定4号指纹信息中选取的目标子指纹信息(第4个子指纹信息，4-4)的拼接顺序为4。然后，将1号指纹信息的第1个子指纹信息(1-1)拼接在第1个位置，将2号指纹信息的第2个子指纹信息(2-2)拼接在第2个位置，将3号指纹信息的第3个子指纹信息(3-3)拼接在第3个位置，将4号指纹信息的第4个子指纹信息(4-4)拼接在第4个位置，即得到目标指纹信息。
S105，判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配， 若是，则执行步骤S106，若否，则提示目标指纹信息与拼接指纹信息不匹配，结束本流程。
本发明实施例中，移动终端中的指纹数据库可以预先存储拼接指纹信息，拼接指纹信息可以由用户预先输入并存储在指纹数据库中，例如，用户可以预先输入至少两个指纹信息(例如，用户可以预先输入用户的十个手指头的指纹信息)，移动终端采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；根据指纹识别的安全级别，用户可以选择中级安全模式或者高级安全模式，在中级安全模式中，接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，按照预设规则生成拼接指纹信息，具体的，请参见图8，针对用户输入4个指纹信息，从这4个指纹信息中分别选取一个目标子指纹信息，拼接成拼接指纹信息，中级安全模式对目标子指纹信息的拼接顺序没有要求，在验证指纹时，只需要验证用户输入4个指纹信息与指纹数据库中预先存储的4个指纹信息是否匹配，若匹配，指纹识别成功；在高级安全模式中，具体的，请参见图9，针对用户输入的4个指纹信息，从这4个指纹信息中分别选取一个目标子指纹信息，按照预设拼接顺序拼接成拼接指纹信息，在验证指纹时，高级安全模式不仅需要验证用户输入的4个指纹信息与指纹数据库中预先存储的4个指纹信息是否匹配，还需要验证用户输入的4个指纹信息的顺序与指纹数据库中预先存储的拼接指纹信息的顺序是否相同，若用户输入的4个指纹信息与指纹数据库中预先存储的4个指纹信息匹配，且用户输入的4个指纹信息的顺序与指纹数据库中预先存储的拼接指纹信息的顺序相同，指纹识别成功。
在一些可行的实施方式中，拼接指纹信息包括若干个拼接子指纹信息，步骤S105可以包括：
判断拼接指纹信息中是否包含与M个目标子指纹信息匹配的M个拼接子指纹信息；
若是，判断M个拼接子指纹信息的拼接顺序与M个目标子指纹信息的拼接顺序是否相同，若是，则确定目标指纹信息与指纹数据库中存储的拼接指纹信息匹配。
本发明实施例中，拼接指纹信息包括若干个拼接子指纹信息，若干个拼接子指纹信息可以由用户事先录入指纹数据库中，用户可以按照一定的录入顺序录入若干个拼接指纹信息，若干个拼接指纹信息的录入顺序与若干个拼接指纹 信息的拼接顺序存在对应关系。首先，判断拼接指纹信息中是否包含与M个目标子指纹信息匹配的M个拼接子指纹信息，若包含，判断M个拼接子指纹信息的拼接顺序与M个目标子指纹信息的拼接顺序是否相同，若相同，则确定目标指纹信息与指纹数据库中存储的拼接指纹信息匹配。本发明实施例中，需要每个目标子指纹信息与每个拼接子指纹信息的内容和顺序均匹配，才确定目标指纹信息与指纹数据库中存储的拼接指纹信息匹配，极大的提高了指纹验证的复杂度，提高了指纹识别的安全性。
S106，确定指纹识别成功。
本发明实施例中，采集M个指纹信息，M为大于或等于2的正整数；针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；将选择的M个目标子指纹信息拼接成目标指纹信息；判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，确定指纹识别成功。实施本发明实施例，需要采集至少两个指纹信息进行指纹识别，可以在单个指纹信息被盗取后，降低移动终端面临的安全威胁，提高了指纹识别的安全性。
请参阅图2，图2是本发明实施例公开的另一种指纹识别方法的流程图。如图2所示，本实施例中所描述的指纹识别方法，包括步骤：
S201，接收针对指纹数据库的访问指令。
S202，识别访问指令是否为针对指纹数据库的首次访问指令，若是，执行步骤S203，若否，执行步骤S206。
S203，获取输入的安全密码。
S204，判断安全密码与预置安全密码是否匹配；若是，执行步骤S205，若否，提示安全密码与预置安全密码不匹配。
S205，接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，生成拼接指纹信息，并将拼接指纹信息存储在指纹数据库中。
本发明实施例中，安全密码可以是移动终端出厂时预置的。若用户需要预存拼接指纹信息或者需要对拼接指纹信息进行更新，需要访问指纹数据库，若需要访问指纹数据库，需要输入安全密码或者输入拼接指纹信息进行验证，当用户第一次访问指纹数据库时，用户需要输入安全密码，并输入初始指纹信息， 终端将初始指纹信息存储在指纹数据库，从初始指纹信息中选择至少两个指纹信息，并根据该至少两个指纹信息按照一定的规则生成拼接指纹信息，当用户不是第一次访问指纹数据库时，需要输入拼接指纹信息进行验证，当验证通过时，重新输入新的指纹信息，终端根据新输入的指纹信息按照一定的规则生成新的拼接指纹信息，即完成指纹数据库的更新。
S206，采集M个指纹信息，M为大于或等于2的正整数。
S207，针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数。
S208，针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息。
S209，将选择的M个目标子指纹信息拼接成目标指纹信息。
S210，判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若是，则执行步骤S211，若否，则提示目标指纹信息与拼接指纹信息不匹配。
S211，确定指纹识别成功。
S212，当指纹识别成功时，接收针对拼接指纹信息的更新指令，对指纹数据库中的拼接指纹信息进行更新。
本发明实施例中，对指纹数据库中的拼接指纹信息进行更新具体可以为：先验证指纹数据库中已有的指纹拼接信息；验证通过后，按照一定的顺序输入多个指纹信息，将多个指纹信息拼接成新的拼接指纹信息，或者从用户输入的初始指纹信息中重新选择至少两个指纹信息，将至少两个指纹信息按照一定的顺序拼接成新的指纹信息；最后将新的拼接指纹信息替换掉已有的指纹拼接信息，将新的拼接指纹信息存储在指纹数据库中，即完成对指纹数据库中的拼接指纹信息的更新。定期的更新拼接指纹信息可以有效的提高指纹识别的安全性。
本发明实施例中的步骤S206～步骤S211可以参见图1所示的步骤S101～步骤S106，本发明实施例不再赘述。
本发明实施例中，接收针对指纹数据库的访问指令；识别访问指令是否为针对指纹数据库的首次访问指令；若是，获取输入的安全密码；判断安全密码与预置安全密码是否匹配；若匹配，采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，生成拼接指纹信息；采集M个指纹信息，M为大于或等于2的 正整数；针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；将选择的M个目标子指纹信息拼接成目标指纹信息；判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，确定指纹识别成功，当指纹识别成功时，接收针对拼接指纹信息的更新指令，对指纹数据库中的拼接指纹信息进行更新。实施本发明实施例，需要采集至少两个指纹信息进行指纹识别，可以在单个指纹信息被盗取后，降低移动终端面临的安全威胁，提高了指纹识别的安全性，同时，可以定期的更新拼接指纹信息，也可以有效的提高指纹识别的安全性。
请参阅图3，图3是本发明实施例公开的一种移动终端的结构示意图。如图3所示，本实施例中所描述的移动终端，包括采集单元301、分割单元302、选取单元303、拼接单元304、第一判断单元305和确定单元306，其中：
采集单元301，用于采集M个指纹信息，M为大于或等于2的正整数。
本发明实施例中，采集单元301可以通过移动终端中的指纹信息采集器采集M个指纹信息。其中，M为大于或等于2的正整数，指纹信息可以是指纹的细节特征点(例如，用户的手指末端正面皮肤上凸凹不平产生的纹线，纹线的起点、终点、结合点和分叉点，以及纹线有规律的排列形成不同的纹型)。M个指纹信息可以是用户的十个手指头的指纹信息，为了方便阐述本发明实施例和后续的实施例，做以下规定：左手大拇指指纹信息为“1号指纹信息”，左手食指指纹信息为“2号指纹信息”，左手中指指纹信息为“3号指纹信息”，左手无名指指纹信息为“4号指纹信息”，左手小拇指指纹信息为“5号指纹信息”，右手大拇指指纹信息为“6号指纹信息”，右手食指指纹信息为“7号指纹信息”，右手中指指纹信息为“8号指纹信息”，右手无名指指纹信息为“9号指纹信息”，右手小拇指指纹信息为“10号指纹信息”，其中，1～10号指纹信息互不相同。M个指纹信息中可以包括相同的指纹信息，例如，M为8时，采集单元301可以采集用户的2个1号指纹信息(左手大拇指指纹信息)、2个2号指纹信息(左手食指指纹信息)、2个3号指纹信息(左手中指指纹信息)、2个4号指纹信息(左手无名指指纹信息)。举例来说，请一并参见图8，图8是本发明实施例公开的一种指纹信息选取示意图，图8中，M为4，在指纹输入框中分别输入1号指纹信息、2号指纹信息、3号指纹信息和4号指纹信息，采集单元301采集4个指纹信息(分别为左手 大拇指指纹信息、左手食指指纹信息、左手中指指纹信息和左手无名指指纹信息)。
分割单元302，用于针对采集单元301采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数。
本发明实施例中，针对采集单元301采集的每个指纹信息，分割单元302将指纹信息分割为N个子指纹信息，M个指纹信息中的每个指纹信息均可以分割为N个子指纹信息，其中，N为大于或等于M的正整数，N个子指纹信息互不相同，优选的，N等于M。举例来说，请一并参见图8，图8中，M为4，其中，每个指纹信息均被分割为4个子指纹信息，例如，1号指纹信息可以分割为第1子指纹信息、第2子指纹信息、第3子指纹信息和第4子指纹信息，为了方便阐述，在本发明实施例及后续实施例中，将1号指纹信息的第1子指纹信息命名为1-1，将1号指纹信息的第2子指纹信息命名为1-2，将1号指纹信息的第3子指纹信息命名为1-3，将1号指纹信息的第4子指纹信息命名为1-4……，依次类推。
选取单元303，用于针对采集单元301采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息。
本发明实施例中，针对采集单元301采集的每个指纹信息，可以按照一定预设的规则，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息，例如，请一并参见图8，图8中，M为4，从图8中可以看出，选取单元303从1号指纹信息中选取了第4个子指纹信息(1-4)作为目标子指纹信息，从2号指纹信息中选取了第1个子指纹信息(2-1)作为目标子指纹信息，从3号指纹信息中选取了第2个子指纹信息(3-2)作为目标子指纹信息，从4号指纹信息中选取了第3个子指纹信息(4-3)作为目标子指纹信息。
可选的，选取单元303针对采集单元301采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息的方式具体为：
选取单元303针对采集单元301采集的每个指纹信息，将指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从指纹信息分割成的N个子指纹信息中，选取出编号与指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
本发明实施例中，编号与指纹信息的采集顺序的对应关系可以由用户事先设定存储在指纹数据库中，由于编号与指纹信息的采集顺序的对应关系可以有 很多种，即使用户的指纹信息全部被不法分子盗取，不法分子不知道采集顺序，也无法破解指纹识别系统，实施本发明实施例可以极大的提高指纹识别的安全性。针对采集单元301采集的每个指纹信息，选取单元303将指纹信息分割成的N个子指纹信息按1，2，……，N进行编号，举例来说，请一并参见图9，图9中，M为4，其中，针对采集单元301采集的每个指纹信息，选取单元303将每个指纹信息分割成的4个子指纹信息按1，2，3，4进行编号，1号指纹信息的采集顺序为1，2号指纹信息的采集顺序为2，3号指纹信息的采集顺序为3，4号指纹信息的采集顺序为4，选取1号指纹信息的第1个指纹信息(1-1)作为目标子指纹信息、2号指纹信息的第2个指纹信息(2-2)作为目标子指纹信息、3号指纹信息的第3个指纹信息(3-3)作为目标子指纹信息、4号指纹信息的第4个指纹信息(4-4)作为目标子指纹信息。
拼接单元304，用于将选取单元303选择的M个目标子指纹信息拼接成目标指纹信息。
本发明实施例中，拼接单元304将选取单元303选择的M个目标子指纹信息拼接成目标指纹信息。举例来说，请一并参见图8，图8中，M为4，从图8中可以看出，将1号指纹信息中选取的第4个子指纹信息(1-4)、2号指纹信息中选取的第1个子指纹信息(2-1)、3号指纹信息中选取的第2个子指纹信息(3-2)、4号指纹信息中选取的第3个子指纹信息(4-3)拼接成目标指纹信息。
可选的，如图4所示，图4是本发明实施例公开的另一种移动终端的结构示意图，其中，拼接单元304包括：
确定子单元3401，用于根据选取单元303选择的M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定M个目标子指纹信息中的每个目标子指纹信息的拼接顺序；
拼接子单元3402，用于将M个目标子指纹信息按照拼接顺序拼接成目标指纹信息。
本发明实施例中，采集顺序与拼接顺序的对应关系可以由系统预先进行设定，不同的对应关系对应多种拼接可能，即使用户的指纹信息全部被不法分子盗取，不法分子不知道采集顺序和拼接顺序，也无法破解指纹识别系统，实施本发明实施例可以极大的提高指纹识别的安全性。举例来说，可以设定采集顺序为第一的，拼接顺序为第一，采集顺序为第二的，拼接顺序为第二，采集顺 序为第三的，拼接顺序为第三……，以此类推。请一并参见图9，图9中，M为4，1号指纹信息的采集顺序为1，2号指纹信息的采集顺序为2，3号指纹信息的采集顺序为3，4号指纹信息的采集顺序为4，根据选取单元303选取的1号指纹信息的采集顺序(采集顺序为1)，确定子单元3401确定1号指纹信息中选取的目标子指纹信息(第1个子指纹信息，1-1)的拼接顺序为1；根据选取单元303选取的2号指纹信息的采集顺序(采集顺序为2)，确定子单元3401确定2号指纹信息中选取的目标子指纹信息(第2个子指纹信息，2-2)的拼接顺序为2；根据选取单元303选取的3号指纹信息的采集顺序(采集顺序为3)，确定子单元3401确定3号指纹信息中选取的目标子指纹信息(第3个子指纹信息，3-3)的拼接顺序为3；根据选取单元303选取的4号指纹信息的采集顺序(采集顺序为4)，确定子单元3401确定4号指纹信息中选取的目标子指纹信息(第4个子指纹信息，4-4)的拼接顺序为4。然后，拼接子单元3402将1号指纹信息的第1个子指纹信息(1-1)拼接在第1个位置，将2号指纹信息的第2个子指纹信息(2-2)拼接在第2个位置，将3号指纹信息的第3个子指纹信息(3-3)拼接在第3个位置，将4号指纹信息的第4个子指纹信息(4-4)拼接在第4个位置，即得到目标指纹信息。
第一判断单元305，用于判断拼接单元304拼接成的目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配。
本发明实施例中，第一判断单元305判断拼接单元304拼接成的目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配。移动终端中的指纹数据库可以预先存储拼接指纹信息，拼接指纹信息可以由用户预先输入并存储在指纹数据库中，例如，用户可以预先输入至少两个指纹信息(例如，用户可以预先输入用户的十个手指头的指纹信息)，移动终端采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；根据指纹识别的安全级别，用户可以选择中级安全模式或者高级安全模式，在中级安全模式中，接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，按照预设规则生成拼接指纹信息，具体的，请参见图8，针对用户输入4个指纹信息，从这4个指纹信息中分别选取一个目标子指纹信息，拼接成拼接指纹信息，中级安全模式对目标子指纹信息的拼接顺序没有要求，在验证指纹时，只需要验证用户输入4个指纹信息与指纹数据库中预先存储的4个指纹信息是否匹配，若匹配，指纹识别成功；在高级安全模式中，具体的，请参见图9，针对用户输入的4个指纹信息，从这4个指纹信 息中分别选取一个目标子指纹信息，按照预设拼接顺序拼接成拼接指纹信息，在验证指纹时，高级安全模式不仅需要验证用户输入的4个指纹信息与指纹数据库中预先存储的4个指纹信息是否匹配，还需要验证用户输入的4个指纹信息的顺序与指纹数据库中预先存储的拼接指纹信息的顺序是否相同，若用户输入的4个指纹信息与指纹数据库中预先存储的4个指纹信息匹配，且用户输入的4个指纹信息的顺序与指纹数据库中预先存储的拼接指纹信息的顺序相同，指纹识别成功。
可选的，如图5所示，图5是本发明实施例公开的另一种移动终端的结构示意图，拼接指纹信息包括若干个拼接子指纹信息，其中，第一判断单元305包括：
第一判断子单元3501，用于判断拼接指纹信息中是否包含与M个目标子指纹信息匹配的M个拼接子指纹信息；
第二判断子单元3502，用于当第一判断子单元3501判断结果为是时，判断M个拼接子指纹信息的拼接顺序与M个目标子指纹信息的拼接顺序是否相同；
其中，当第二判断子单元3502判断结果为是时，触发第一判断单元305判断结果为是。
本发明实施例中，拼接指纹信息包括若干个拼接子指纹信息，若干个拼接子指纹信息可以由用户事先录入指纹数据库中，用户可以按照一定的录入顺序录入若干个拼接指纹信息，若干个拼接指纹信息的录入顺序与若干个拼接指纹信息的拼接顺序存在对应关系。首先，第一判断子单元3501判断拼接指纹信息中是否包含与M个目标子指纹信息匹配的M个拼接子指纹信息，若包含，第二判断子单元3502判断M个拼接子指纹信息的拼接顺序与M个目标子指纹信息的拼接顺序是否相同，若相同，则确定目标指纹信息与指纹数据库中存储的拼接指纹信息匹配，触发第一判断单元305判断结果为是。本发明实施例中，需要每个目标子指纹信息与每个拼接子指纹信息的内容和顺序均匹配，才确定目标指纹信息与指纹数据库中存储的拼接指纹信息匹配，极大的提高了指纹验证的复杂度，提高了指纹识别的安全性。
确定单元306，用于当第一判断单元305判断结果为是时，确定指纹识别成功。
本发明实施例中，采集单元301采集M个指纹信息，M为大于或等于2的正整 数；针对采集的每个指纹信息，分割单元302将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；针对采集的每个指纹信息，选取单元303从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；拼接单元304将选择的M个目标子指纹信息拼接成目标指纹信息；第一判断单元305判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，确定单元306确定指纹识别成功。实施本发明实施例，需要采集单元301采集至少两个指纹信息进行指纹识别，可以在单个指纹信息被盗取后，降低移动终端面临的安全威胁，提高了指纹识别的安全性。
请参阅图6，图6是本发明实施例公开的另一种移动终端的结构示意图。如图6所示，本实施例中所描述的移动终端，除了包括图3所示的括采集单元301、分割单元302、选取单元303、拼接单元304、第一判断单元305和确定单元306之外，还包括接收单元307、识别单元308、获取单元309、第二判断单元310、生成单元311和更新单元312，其中：
接收单元307，用于接收针对指纹数据库的访问指令。
识别单元308，用于识别访问指令是否为针对指纹数据库的首次访问指令。
获取单元309，用于当识别单元308识别结果为是时，获取输入的安全密码。
第二判断单元310，用于判断获取单元309获取的安全密码与预置安全密码是否匹配。
采集单元301，还用于当第二判断单元310判断结果为是时，采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；
生成单元311，用于接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，生成拼接指纹信息，并将拼接指纹信息存储在指纹数据库中。
本发明实施例中，接收单元307接收针对指纹数据库的访问指令；识别单元308响应接收单元307接收的访问指令识别访问指令是否为针对指纹数据库的首次访问指令；当识别单元308识别结果为是时，获取单元309获取输入的安全密码；第二判断单元31判断获取单元309获取的安全密码与预置安全密码是否匹配；当第二判断单元310判断结果为是时，采集单元301采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；生成单元311接收针对采集单元301采集的至少两个指纹信息中至少两个指纹信息的拼接指令，生成拼接指纹信息，并将拼接指纹信息存储在指纹数据库中。其中，安全密码可以是移动 终端出厂时预置的。具体场景中，若用户需要预存拼接指纹信息或者需要对拼接指纹信息进行更新，需要访问指纹数据库，若需要访问指纹数据库，需要输入安全密码或者输入拼接指纹信息进行验证，当用户第一次访问指纹数据库时，用户需要输入安全密码，并输入初始指纹信息，终端将初始指纹信息存储在指纹数据库，从初始指纹信息中选择至少两个指纹信息，并根据该至少两个指纹信息按照一定的规则生成拼接指纹信息，当用户不是第一次访问指纹数据库时，需要输入拼接指纹信息进行验证，当验证通过时，用户按照一定的顺序输入多个指纹信息，将多个指纹信息拼接成新的拼接指纹信息，或者从用户输入的初始指纹信息中重新选择至少两个指纹信息，将至少两个指纹信息按照一定的顺序拼接成新的指纹信息；最后将新的拼接指纹信息替换掉已有的指纹拼接信息，将新的拼接指纹信息存储在指纹数据库中，即完成对指纹数据库中的拼接指纹信息的更新。
更新单元312，用于当确定单元306确定指纹识别成功时，接收针对拼接指纹信息的更新指令，对指纹数据库中的拼接指纹信息进行更新。
本发明实施例中，更新单元312对指纹数据库中的拼接指纹信息进行更新具体可以为：更新单元312先验证指纹数据库中已有的指纹拼接信息；验证通过后，按照一定的顺序输入多个指纹信息，将多个指纹信息拼接成新的拼接指纹信息，或者从用户输入的初始指纹信息中选择至少两个指纹信息，将至少两个指纹信息按照一定的顺序拼接成新的指纹信息；最后将新的拼接指纹信息替换掉已有的指纹拼接信息，即完成对指纹数据库中的拼接指纹信息的更新。定期的更新拼接指纹信息可以有效的提高指纹识别的安全性。
本发明实施例中，接收单元307接收针对指纹数据库的访问指令；识别单元308识别访问指令是否为针对指纹数据库的首次访问指令；当识别单元308识别结果为是时，获取单元309获取输入的安全密码；第二判断单元310判断获取单元309获取的安全密码与预置安全密码是否匹配；当第二判断单元310判断结果为是时，采集单元301采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；生成单元311接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，生成拼接指纹信息；采集单元301采集M个指纹信息，M为大于或等于2的正整数；针对采集的每个指纹信息，分割单元302将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；针对采集的每个指纹信息，选取单元 303从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；拼接单元304将选择的M个目标子指纹信息拼接成目标指纹信息；第一判断单元305判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，确定单元306确定指纹识别成功；当确定单元306确定指纹识别成功时，更新单元312接收针对拼接指纹信息的更新指令，对指纹数据库中的拼接指纹信息进行更新。实施本发明实施例，需要采集单元301采集至少两个指纹信息进行指纹识别，可以在单个指纹信息被盗取后，降低移动终端面临的安全威胁，提高了指纹识别的安全性，同时，更新单元312可以定期的更新拼接指纹信息，也可以有效的提高指纹识别的安全性。
请参阅图7，图7是本发明实施例公开的另一种移动终端的结构示意图。在图7所描述的移动终端中，该移动终端可以包括处理器1001、存储器1002以及指纹信息采集器1003，其中，处理器1001分别通过总线连接存储器1002以及指纹信息采集器1003，其中，存储器1002用于存储拼接指纹信息以及指纹识别程序，而处理器1001用于读取存储器1002存储的指纹识别程序以执行下述操作：
通过指纹信息采集器1003采集M个指纹信息，M为大于或等于2的正整数；
针对指纹信息采集器1003采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；
针对指纹信息采集器1003采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；
将选择的M个目标子指纹信息拼接成目标指纹信息；
判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，则确定指纹识别成功。
本发明实施例中，处理器1001针对指纹信息采集器1003采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息，包括：
针对指纹信息采集器1003采集的每个指纹信息，将指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从指纹信息分割成的N个子指纹信息中，选取出编号与指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
本发明实施例中，处理器1001将选择的M个目标子指纹信息拼接成目标指纹信息，包括：
根据M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定M个目标子指纹信息中的每个目标子指纹信息的拼接顺序；
将M个目标子指纹信息按照拼接顺序拼接成目标指纹信息。
本发明实施例中，拼接指纹信息包括若干个拼接子指纹信息，处理器1001判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，包括：
判断拼接指纹信息中是否包含与M个目标子指纹信息匹配的M个拼接子指纹信息；
若是，判断M个拼接子指纹信息的拼接顺序与M个目标子指纹信息的拼接顺序是否相同，若是，则确定目标指纹信息与指纹数据库中存储的拼接指纹信息匹配。
在一个实施例中，处理器1001在采集M个指纹信息之前，还执行以下操作：
接收针对指纹数据库的访问指令；
识别访问指令是否为针对指纹数据库的首次访问指令；
若是，获取输入的安全密码；
判断安全密码与预置安全密码是否匹配；
若匹配，采集输入的至少两个指纹信息，将至少两个指纹信息存储在指纹数据库中；
接收针对至少两个指纹信息中至少两个指纹信息的拼接指令，生成拼接指纹信息。
在一个实施例中，处理器1001在识别访问指令为针对指纹数据库的非首次访问指令时，执行以下操作：
采集M个指纹信息，M为大于或等于2的正整数；
针对采集的每个指纹信息，将指纹信息分割为N个子指纹信息，N为大于或等于M的正整数；
针对采集的每个指纹信息，从指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；
将选择的M个目标子指纹信息拼接成目标指纹信息；
判断目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配， 则确定指纹识别成功。
当指纹识别成功时，接收针对拼接指纹信息的更新指令，对指纹数据库中的拼接指纹信息进行更新。
可见，图7描述的移动终端，需要采集至少两个指纹信息进行指纹识别，在单个指纹信息被盗取后，可以降低移动终端面临的安全威胁，从而提高了指纹识别的安全性。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
以上对本发明实施例所提供的一种指纹识别方法及移动终端进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (12)

  1. 一种指纹识别方法，其特征在于，包括：
    采集M个指纹信息，所述M为大于或等于2的正整数；
    针对采集的每个指纹信息，将所述指纹信息分割为N个子指纹信息，所述N为大于或等于所述M的正整数；
    针对采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；
    将选择的M个目标子指纹信息拼接成目标指纹信息；
    判断所述目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，若匹配，则确定指纹识别成功。
  2. 根据权利要求1所述的方法，其特征在于，所述针对采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息，包括：
    针对采集的每个指纹信息，将所述指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从所述指纹信息分割成的N个子指纹信息中，选取出编号与所述指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述将选择的M个目标子指纹信息拼接成目标指纹信息，包括：
    根据所述M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定所述M个目标子指纹信息中的每个目标子指纹信息的拼接顺序；
    将所述M个目标子指纹信息按照所述拼接顺序拼接成目标指纹信息。
  4. 根据权利要求3所述的方法，其特征在于，所述拼接指纹信息包括若干个拼接子指纹信息，所述判断所述目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配，包括：
    判断所述拼接指纹信息中是否包含与所述M个目标子指纹信息匹配的M个拼接子指纹信息；
    若是，判断所述M个拼接子指纹信息的拼接顺序与所述M个目标子指纹信息 的拼接顺序是否相同，若是，则确定所述目标指纹信息与所述指纹数据库中存储的拼接指纹信息匹配。
  5. 根据权利要求1～4任一项所述的方法，其特征在于，所述采集M个指纹信息之前，所述方法还包括：
    接收针对所述指纹数据库的访问指令；
    识别所述访问指令是否为针对所述指纹数据库的首次访问指令；
    若是，获取输入的安全密码；
    判断所述安全密码与预置安全密码是否匹配；
    若匹配，采集输入的至少两个指纹信息，将所述至少两个指纹信息存储在所述指纹数据库中；
    接收针对所述至少两个指纹信息中至少两个指纹信息的拼接指令，生成所述拼接指纹信息，并将所述拼接指纹信息存储在所述指纹数据库中。
  6. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    当识别所述访问指令为针对所述指纹数据库的非首次访问指令时，执行所述采集M个指纹信息的步骤；
    当所述指纹识别成功时，接收针对所述拼接指纹信息的更新指令，对所述指纹数据库中的所述拼接指纹信息进行更新。
  7. 一种移动终端，其特征在于，包括：
    采集单元，用于采集M个指纹信息，所述M为大于或等于2的正整数；
    分割单元，用于针对所述采集单元采集的每个指纹信息，将所述指纹信息分割为N个子指纹信息，所述N为大于或等于所述M的正整数；
    选取单元，用于针对所述采集单元采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息；
    拼接单元，用于将所述选取单元选择的M个目标子指纹信息拼接成目标指纹信息；
    第一判断单元，用于判断所述拼接单元拼接成的所述目标指纹信息与指纹数据库中存储的拼接指纹信息是否匹配；
    确定单元，用于当所述第一判断单元判断结果为是时，确定指纹识别成功。
  8. 根据权利要求7所述的移动终端，其特征在于，所述选取单元针对所述采集单元采集的每个指纹信息，从所述指纹信息分割成的N个子指纹信息中选取一个目标子指纹信息的方式具体为：
    所述选取单元针对所述采集单元采集的每个指纹信息，将所述指纹信息分割成的N个子指纹信息按1，2，……，N进行编号；以及，从所述指纹信息分割成的N个子指纹信息中，选取出编号与所述指纹信息的采集顺序匹配的子指纹信息作为目标子指纹信息。
  9. 根据权利要求7或8所述的移动终端，其特征在于，所述拼接单元包括：
    确定子单元，用于根据所述选取单元选择的所述M个目标子指纹信息中的每个目标子指纹信息对应的指纹信息的采集顺序，确定所述M个目标子指纹信息中的每个目标子指纹信息的拼接顺序；
    拼接子单元，用于将所述M个目标子指纹信息按照所述拼接顺序拼接成目标指纹信息。
  10. 根据权利要求9所述的移动终端，其特征在于，所述拼接指纹信息包括若干个拼接子指纹信息，所述第一判断单元包括：
    第一判断子单元，用于判断所述拼接指纹信息中是否包含与所述M个目标子指纹信息匹配的M个拼接子指纹信息；
    第二判断子单元，用于当所述第一判断子单元判断结果为是时，判断所述M个拼接子指纹信息的拼接顺序与所述M个目标子指纹信息的拼接顺序是否相同；
    其中，当所述第二判断子单元判断结果为是时，所述第一判断单元判断结果为是。
  11. 根据权利要求7～10任一项所述的移动终端，其特征在于，所述移动终端还包括：
    接收单元，用于接收针对所述指纹数据库的访问指令；
    识别单元，用于识别所述访问指令是否为针对所述指纹数据库的首次访问 指令；
    获取单元，用于当所述识别单元识别结果为是时，获取输入的安全密码；
    第二判断单元，用于判断所述安全密码与预置安全密码是否匹配；
    采集单元，还用于当所述第二判断单元判断结果为是时，采集输入的至少两个指纹信息，将所述至少两个指纹信息存储在所述指纹数据库中；
    生成单元，用于接收针对所述至少两个指纹信息中至少两个指纹信息的拼接指令，生成所述拼接指纹信息，并将所述拼接指纹信息存储在所述指纹数据库中。
  12. 根据权利要求11所述的移动终端，其特征在于，所述移动终端还包括：
    当所述第二判断单元判断结果为是时，触发所述采集单元采集M个指纹信息；
    更新单元，用于当所述确定单元确定指纹识别成功时，接收针对所述拼接指纹信息的更新指令，对所述指纹数据库中的所述拼接指纹信息进行更新。
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