CN110929550B - Fingerprint identification method and device, electronic equipment and storage medium - Google Patents
Fingerprint identification method and device, electronic equipment and storage medium Download PDFInfo
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- CN110929550B CN110929550B CN201811102836.7A CN201811102836A CN110929550B CN 110929550 B CN110929550 B CN 110929550B CN 201811102836 A CN201811102836 A CN 201811102836A CN 110929550 B CN110929550 B CN 110929550B
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- 238000001514 detection method Methods 0.000 claims abstract description 125
- 238000012795 verification Methods 0.000 claims abstract description 15
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/667—Preventing unauthorised calls from a telephone set
- H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
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Abstract
The disclosure relates to a fingerprint identification method and device, an electronic device and a storage medium, wherein the method can comprise the following steps: acquiring fingerprint information acquired in a fingerprint detection area; when the fingerprint information comprises a plurality of fingerprints with preset quantity, determining fingerprint database data matched with the sub-areas according to the sub-areas corresponding to the fingerprints in the fingerprint detection area respectively so as to identify the corresponding fingerprints; and according to fingerprint identification results aiming at the fingerprints, carrying out identity verification on the source side of the fingerprints.
Description
Technical Field
The disclosure relates to the technical field of fingerprint identification, and in particular relates to a fingerprint identification method and device, electronic equipment and a storage medium.
Background
The fingerprint is a rugged line formed on the skin of the finger of the user, has the characteristics and uniqueness of being unchanged throughout the life, and can rapidly distinguish the identity information of the user. In the related art, more and more electronic devices are provided with fingerprint identification modules, so that fingerprint characteristics of a user can be collected and identified, and the identity identification function of the user is rapidly realized.
Disclosure of Invention
The disclosure provides a fingerprint identification method and device, electronic equipment and storage medium, so as to solve the defects in the related art.
According to a first aspect of an embodiment of the present disclosure, there is provided a fingerprint identification method, including:
acquiring fingerprint information acquired in a fingerprint detection area;
when the fingerprint information comprises a plurality of fingerprints with preset quantity, determining fingerprint database data matched with the sub-areas according to the sub-areas corresponding to the fingerprints in the fingerprint detection area respectively so as to identify the corresponding fingerprints;
and according to fingerprint identification results aiming at the fingerprints, carrying out identity verification on the source side of the fingerprints.
Optionally, the acquiring fingerprint information acquired in the fingerprint detection area includes:
and acquiring all fingerprints acquired in the fingerprint detection area within a preset time length to serve as fingerprint information.
Optionally, the plurality of fingerprints are detected at different locations within the fingerprint detection region.
Optionally, the positions of the fingerprints are respectively in different sub-areas.
Optionally, the method further comprises:
and when the number of fingerprints contained in the fingerprint information is smaller than the preset number or is inconsistent with the preset number, ignoring the fingerprint information.
Optionally, the sub-region corresponds to a fixed range within the fingerprint detection region; the method further comprises the steps of:
and respectively determining the subareas where the fingerprints are positioned according to the fixed range to which the position coordinates of the fingerprints belong.
Optionally, the method further comprises:
determining specific relative positional relationships between each fingerprint of the plurality of fingerprints and other fingerprints, respectively;
selecting the sub-regions corresponding to the fingerprints in the fingerprint detection region, wherein the relative position relationship between the selected sub-regions and other sub-regions accords with the specific relative position relationship.
Optionally, the method further comprises:
determining preset fingerprint combinations matched with the fingerprints according to the fingerprint identification result;
triggering a preset operation corresponding to the preset fingerprint combination.
Optionally, the preset operation includes at least one of:
unlocking a screen, starting one or more application programs, switching to a specified contextual model, and sending an emergency message to a target object.
According to a second aspect of embodiments of the present disclosure, there is provided a fingerprint identification device, comprising:
an acquisition unit configured to acquire fingerprint information acquired in the fingerprint detection area;
The data determining unit is configured to determine fingerprint database data matched with the sub-regions according to the sub-regions corresponding to the fingerprints in the fingerprint detection region respectively when the fingerprint information comprises a plurality of fingerprints with preset numbers, so as to identify the corresponding fingerprints;
and the verification unit is configured to perform identity verification on the sources of the fingerprints according to fingerprint identification results of the fingerprints.
Optionally, the acquiring unit is specifically configured to:
and acquiring all fingerprints acquired in the fingerprint detection area within a preset time length to serve as fingerprint information.
Optionally, the plurality of fingerprints are detected at different locations within the fingerprint detection region.
Optionally, the positions of the fingerprints are respectively in different sub-areas.
Optionally, the method further comprises:
and the processing unit is configured to ignore the fingerprint information when the number of fingerprints contained in the fingerprint information is smaller than the preset number or is inconsistent with the preset number.
Optionally, the sub-region corresponds to a fixed range within the fingerprint detection region; the apparatus further comprises:
and the sub-region determining unit is configured to determine the sub-region where each fingerprint is located according to the fixed range to which the position coordinates of each fingerprint belong.
Optionally, the method further comprises:
a relationship determination unit configured to determine specific relative positional relationships between respective ones of the plurality of fingerprints and other fingerprints, respectively;
and a selection unit configured to select a sub-region corresponding to each fingerprint in the fingerprint detection region, wherein a relative positional relationship between the selected sub-region and other sub-regions conforms to the specific relative positional relationship.
Optionally, the method further comprises:
a combination determining unit configured to determine a preset fingerprint combination matched with the plurality of fingerprints according to the fingerprint identification result;
and the triggering unit is configured to trigger a preset operation corresponding to the preset fingerprint combination.
Optionally, the preset operation includes at least one of:
unlocking a screen, starting one or more application programs, switching to a specified contextual model, and sending an emergency message to a target object.
According to a third aspect of embodiments of the present disclosure, there is provided an electronic device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement the method according to any of the above embodiments by executing the executable instructions.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer instructions, characterized in that the instructions when executed by a processor implement the steps of the method as in any of the embodiments described above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
according to the embodiment, when the authentication scheme based on the fingerprints is implemented, the sub-regions corresponding to the fingerprints in the fingerprint detection region are determined, so that each fingerprint only needs to be compared with part of fingerprint database data matched with the sub-regions, and does not need to be compared with all fingerprint database data, the fingerprint identification efficiency can be improved, and the response speed to user operation can be increased.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flow chart illustrating a fingerprint recognition method according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating another fingerprint identification method according to an exemplary embodiment.
Fig. 3 is a schematic diagram illustrating a determination of a sub-region of a fixed range within which a fingerprint falls, according to an example embodiment.
Fig. 4 is a schematic diagram illustrating another determination of a fixed range sub-region within which a fingerprint falls, according to an example embodiment.
Fig. 5-6 are schematic diagrams illustrating a determination of a dynamic sub-region into which a fingerprint falls, according to an example embodiment.
Fig. 7-11 are block diagrams illustrating a fingerprint recognition device according to an exemplary embodiment.
Fig. 12 is a schematic structural view showing an apparatus for fingerprint recognition according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Fig. 1 is a flowchart illustrating a fingerprint identification method according to an exemplary embodiment, and as shown in fig. 1, the method is applied to an electronic device, and may include the following steps:
In step 102, fingerprint information acquired within a fingerprint detection area is acquired.
In an embodiment, a fingerprint recognition module is mounted on the electronic device, and the fingerprint recognition module forms a fingerprint detection area on the electronic device for collecting fingerprint information and implementing fingerprint recognition, so as to realize authentication of a user.
In an embodiment, the fingerprint detection area may be a continuous area formed by the same fingerprint recognition module, and the area of the fingerprint detection area may accommodate multiple fingers of the user to simultaneously perform touching, so as to collect multiple fingerprints simultaneously.
In an embodiment, although the area of the fingerprint detection area is large enough to accommodate multiple fingers of the user to perform the touch at the same time, the user does not have to perform the touch operation at the same time, for example, the fingerprint recognition module may acquire all the fingerprints acquired in the fingerprint detection area within a preset time period as the fingerprint information. Then, as long as the touch is ensured to be implemented by a plurality of fingers respectively within the preset time, the fingerprint identification module can apply a plurality of corresponding fingerprints to one fingerprint identification operation; if the preset time period is exceeded, the fingerprints may be divided into a plurality of fingerprint recognition operations, thereby causing fingerprint recognition failure.
In an embodiment, the fingerprint recognition module may be an under-screen fingerprint recognition module, so that the fingerprint detection Area is formed in a Visual Area (VA) of a display screen of the electronic device. Alternatively, the fingerprint detection area may be located anywhere else on the electronic device, which is not limiting of the present disclosure.
In step 104, when the fingerprint information includes a preset number of multiple fingerprints, fingerprint library data matched with the sub-regions are determined according to the sub-regions corresponding to the respective fingerprints in the fingerprint detection region, so as to perform fingerprint identification on the corresponding fingerprints.
In an embodiment, when the area of the fingerprint detection area is larger, especially when the fingerprint detection area is located in a middle area of a front panel side or a back panel side of the electronic device, a finger easily touches the fingerprint detection area during the process of holding the electronic device, so that the fingerprint detection area collects fingerprint information of the user, and thus, the electronic device is unlocked by mistake or some application programs are opened by mistake. Therefore, by fingerprinting a plurality of fingerprints, rather than fingerprinting a single fingerprint, the occurrence probability of false unlocking or false opening can be greatly reduced.
In one embodiment, the fingerprint database data is derived from standard fingerprints entered by the authorized user through the fingerprint identification module in advance, and whether the collected fingerprint belongs to the authorized user can be determined by comparing the collected fingerprint in the fingerprint detection area with the fingerprint database data. In the process of inputting standard fingerprints, the fingerprint identification module can record the corresponding sub-areas of each standard fingerprint in the fingerprint detection area; in other words, the fingerprint identification process in the present disclosure not only needs to consider the matching between fingerprints, but also increases the consideration of this dimension of the sub-region, so that: on the one hand, the collected fingerprints can be identified only through the fingerprint database data matched with the subareas, for example, when the collected fingerprints correspond to the subareas 1, the fingerprint database data corresponding to the standard fingerprints matched with the subareas 1 are only required to be applied to the fingerprint identification process, the fingerprint database data corresponding to the standard fingerprints matched with the subareas 2 or other subareas are not required to be applied to the fingerprint identification process, so that the fingerprint identification efficiency can be improved, and on the other hand, the subareas can be used as a new dimension of identity verification, so that even if an illegal user obtains the fingerprints of authorized users, if the fingerprints are formed in the wrong subareas, the fingerprints still cannot pass verification, and the security of fingerprint verification is improved.
In an embodiment, the sub-region corresponds to a fixed range within the fingerprint detection region; for example, the fingerprint detection area may be divided into two sub-areas on the left and right, or the fingerprint detection area may be divided into three sub-areas on the top, middle and bottom, or the fingerprint detection area may be divided into four areas on the bottom left, top right, top left, bottom right, etc., and the present disclosure is not limited to the number, position, size, etc. of sub-areas. For the subareas of the fixed range, no matter what state the electronic equipment is in, what relative position relation exists between the fingerprints, and the like, the division of the subareas is not influenced, so that the subareas where the fingerprints are positioned can be respectively determined directly according to the fixed range to which the position coordinates of the fingerprints belong.
In an embodiment, a specific relative positional relationship between each fingerprint of the plurality of fingerprints and other fingerprints may be determined separately; and then selecting the sub-regions corresponding to the fingerprints in the fingerprint detection region, wherein the relative position relationship between the selected sub-regions and other sub-regions accords with the specific relative position relationship. For example, assuming that the fingerprint detection area may be divided into left and right sub-areas, when two fingerprints located in the fingerprint detection area are acquired, if the extending directions of the two fingerprints (extending directions may be directed from one end corresponding to the abdomen to the other end corresponding to the fingertip) coincide, the counterclockwise direction of the extending direction may be referred to as left side, the clockwise direction may be referred to as right side, regardless of the extending directions, so that the fingerprint on the opposite left side is determined as the sub-area corresponding to the left side, and the fingerprint on the opposite right side is determined as the sub-area corresponding to the right side. Therefore, based on a dynamic subarea division mode, a user can input fingerprints in the fingerprint detection area more freely, and each fingerprint can be accurately distinguished to realize fingerprint identification.
In an embodiment, the number of sub-regions may be equal to or greater than the number of the plurality of fingerprints, such that a user is able to form the plurality of fingerprints in the fingerprint detection region at the same time or nearly the same time.
In one embodiment, when a certain fingerprint is in a certain sub-region, it may be determined that the fingerprint corresponds to the sub-region; for example, the sub-region of the fixed range is divided in advance, and then, when the position coordinates of a certain fingerprint are located in the fixed range corresponding to the certain sub-region, it is determined that the fingerprint corresponds to the sub-region. When a certain fingerprint is simultaneously located in a plurality of subareas, the subarea with the largest occupation ratio can be determined as the subarea corresponding to the fingerprint according to the area occupation ratio of the fingerprint in each subarea; when the value of the duty ratio is not smaller than the preset duty ratio, for example, when all the duty ratios are smaller than 20%, even if the sub-region with the largest duty ratio exists, it may be determined that the fingerprint does not have the corresponding sub-region.
In another embodiment, the fingerprints do not necessarily lie in a certain sub-region, but there is a correspondence between the two. For example, for the dynamic subareas, according to the relative position relationship between the fingerprints and the relative position relationship between the subareas, the fingerprints with consistent relative position relationship are determined to correspond to the subareas, but the subareas do not necessarily truly correspond to a certain range in the fingerprint detection area, but only are used for representing the relative position relationship between the plurality of subareas.
In step 106, the originators of the fingerprints are authenticated according to the fingerprint identification results for the fingerprints.
In an embodiment, when the fingerprint identification result indicates that the plurality of fingerprints belong to the authorized user, the source party of the plurality of fingerprints may be determined to be the authorized user, that is, the identity of the source party is verified. When the fingerprint identification result indicates that at least one fingerprint of the plurality of fingerprints does not belong to the authorized user, it may be determined that the source of the plurality of fingerprints is not the authorized user. Therefore, by adopting a plurality of fingerprints for identity verification, the illegal user needs to acquire a plurality of fingerprints of the authorized user, so that the implementation difficulty and cost of the illegal user are improved, and the security guarantee for the authorized user is facilitated.
In an embodiment, according to the fingerprint identification result, a preset fingerprint combination matched with the plurality of fingerprints can be determined, and a preset operation corresponding to the preset fingerprint combination is triggered. The authorized user can input a plurality of fingerprints in advance, and the input number is larger than the fingerprint number of the plurality of fingerprints, so that the authorized user can have a plurality of fingerprint combinations when inputting the plurality of fingerprints: such as, but not limited to, fingerprint 1+fingerprint 2 for screen unlocking, fingerprint 1+fingerprint 3 for launching one or more applications (other applications may also be launched in other combinations), fingerprint 2+fingerprint 4 for switching to a specified profile (e.g., meeting profile, outdoor profile, etc.), fingerprint 1+fingerprint 2+fingerprint 3 for sending an urgent message to a target object, etc.
Fig. 2 is a flow chart illustrating another fingerprint identification method according to an exemplary embodiment. As shown in fig. 2, the method may include the steps of:
in step 202, a touch operation is detected.
Taking the mobile phone 30 shown in fig. 3 as an example, it is assumed that the mobile phone 30 is provided with a touch screen module and a fingerprint recognition module, the fingerprint recognition module forms a fingerprint detection area 31 in a visible area of the touch screen module, and the area of the fingerprint detection area 31 is larger and almost covers half of the area of the touch screen module. Of course, in other embodiments, the area of the fingerprint detection area 31 may be relatively smaller or relatively larger, so long as it is ensured that it is capable of detecting multiple fingerprints of a user, which the present disclosure is not limited to.
Through setting up fingerprint detection area 31 in the visible area of touch-sensitive screen module for fingerprint detection module need not to occupy the panel side space of cell-phone 30, is convenient for realize bigger screen ratio, forms or is close to forming comprehensive screen effect. Meanwhile, by arranging the fingerprint detection area 31 with a larger area, the user can implement fingerprint input in the larger area, and the operation experience of the user can be optimized.
In step 204, it is determined whether the occurrence position of the touch operation is in the fingerprint detection area; if yes, go to step 206, otherwise return to step 202.
In step 206, a fingerprint is acquired.
In an embodiment, since the fingerprint detection area 31 is located in the touch detection area of the touch screen module, the touch operation occurring in the touch detection area can be detected by the touch screen module, so as to trigger the fingerprint recognition module to implement fingerprint detection. In other embodiments, it may be determined by other ways that the user places a finger in the fingerprint detection area 31 to trigger the fingerprint recognition module to perform fingerprint detection, and the fingerprint detection function of the fingerprint recognition module is turned off at other times to reduce power consumption.
In step 208, when the number of fingerprints is 2, the process proceeds to step 210, otherwise, the process returns to step 202.
In an embodiment, assuming that the fingerprint input by the owner (i.e. the authorized user) of the mobile phone 30 is "standard fingerprint a+standard fingerprint B", the fingerprint recognition module may determine that the user needs to perform the fingerprint recognition based authentication only when 2 fingerprints are acquired, and determine that the user has a false touch due to the number discrepancy when 1 fingerprint or more than 2 fingerprints are detected, and the fingerprint recognition module does not need to perform the fingerprint recognition operation.
In one embodiment, the location information of the fingerprint may be limited in addition to the requirement for the number of fingerprints. For example, as shown in fig. 3, the fingerprint detection area 31 may be divided into a first detection area 311 and a second detection area 312, if the number of detected fingerprints is 2 and the 2 fingerprints are respectively located in the first detection area 311 and the second detection area 312, for example, the fingerprint 321 located in the first detection area 311 and the fingerprint 322 located in the second detection area 312 are detected, the fingerprint identification module may be triggered to perform the fingerprint identification operation, otherwise (for example, the 2 fingerprints are all located in the first detection area 311) may be determined that the user has made a false touch, and the fingerprint identification module does not need to perform the fingerprint identification operation.
In an embodiment, when the fingerprint detection function of the fingerprint identification module is turned on, fingerprint detection can be periodically performed on the fingerprint detection area 31, and the number statistics and the position identification can be performed on the fingerprints detected in the same period; in other words, since a user is often able to place a plurality of fingers in the fingerprint detection area 31 at the same time or almost at the same time when actively performing fingerprint recognition, all the fingerprints detected in the same period can be determined as a single operation from the user, while the fingerprints detected in different periods are determined as different operations (often belonging to a false touch) from the user.
In step 210, a sub-region to which the fingerprint corresponds is determined.
In step 212, fingerprint library data is selected.
In an embodiment, it is assumed that the fingerprint detection area 31 is divided into a first detection area 311 and a second detection area 312 as shown in fig. 3, the first detection area 311 and the second detection area 312 having a fixed range, such as a left half belonging to the first detection area 311 and a right half belonging to the second detection area 312, the first detection area 311 and the second detection area 312 corresponding to dividing the fingerprint detection area 31 into two sub-areas.
In the process of inputting standard fingerprints and establishing a fingerprint library by the owner of the mobile phone 30, the owner touches the first detection area 311 and the second detection area 312 respectively each time to input corresponding fingerprint combinations. For example, by entering the standard fingerprint a in the first detection area 311 and the standard fingerprint B in the second detection area 312, a fingerprint combination "standard fingerprint a+standard fingerprint B" is formed. In addition, the fingerprint recognition module may record a sub-region corresponding to each standard fingerprint in the fingerprint combination, for example, in the fingerprint combination "standard fingerprint a+standard fingerprint B" described above, the standard fingerprint a corresponds to the first detection region 311, and the standard fingerprint B corresponds to the second detection region 312.
Therefore, in the authentication process of the current user, assuming that the fingerprint detection area 31 collects the fingerprint 321 located in the first detection area 311 and the fingerprint 322 located in the second detection area 312, it may be determined that the fingerprint 321 corresponds to the first detection area 311 and the fingerprint 322 corresponds to the second detection area 312, so that only the fingerprint library data corresponding to the standard fingerprint matching the first detection area 311, such as the fingerprint library data corresponding to the standard fingerprint a, and the fingerprint library data not corresponding to the standard fingerprint B, may be selected for the fingerprint 321, and only the fingerprint library data corresponding to the standard fingerprint matching the second detection area 312, such as the fingerprint library data corresponding to the standard fingerprint B and the fingerprint library data not corresponding to the standard fingerprint a, may be selected for the fingerprint 322.
For a fixed range of sub-regions, the user sometimes cannot fit each fingerprint into exactly one sub-region, such as shown in fig. 4: the fingerprint 321 is located in the first detection area 311, and it may be determined that the fingerprint 321 corresponds to the first detection area 311; while the fingerprint 322 is located in both the first detection area 311 and the second detection area 312, the sub-area corresponding to the fingerprint 322 may be determined based on the area ratio of the fingerprint 322 in the first detection area 311 and the second detection area 312, respectively, e.g., since the area ratio of the fingerprint 322 in the second detection area 312 is relatively larger, it may be determined that the fingerprint 322 corresponds to the second detection area 312.
In an embodiment, it is assumed that the fingerprint detection area 31 is not divided into sub-areas having a fixed range, but the sub-areas to which the fingerprint corresponds are determined based on the relative positional relationship.
In the process of inputting standard fingerprints and establishing a fingerprint library by the owner of the mobile phone 30, the owner can randomly place two fingers in the fingerprint detection area 31 to input corresponding fingerprint combinations. For example, as shown in fig. 5, assuming that a standard fingerprint a and a standard fingerprint B are formed in the fingerprint detection area 31, with the direction from the web end to the fingertip end as the extending direction, it can be determined that the standard fingerprint a corresponds to the extending direction LA and the standard fingerprint B corresponds to the extending direction LB. Although the extending direction LA and the extending direction LB do not completely coincide, they are directed substantially in the same direction, and thus the extending direction LA and the extending direction LB can be considered to coincide, and can be virtually a uniform extending direction LC, then: by setting the counterclockwise direction and the clockwise direction of the uniform extending direction LC to the left and the right, it can be determined that the standard fingerprint a is on the left and the standard fingerprint B is on the right, which corresponds to the sub-region of the fingerprint detection region 31 on the opposite left and the standard fingerprint B on the opposite right, respectively, although the fingerprint detection region 31 does not actually divide the corresponding sub-regions.
As shown in fig. 6, in the authentication process of the current user, assuming that the fingerprint detection area 31 collects the fingerprint 321 with the extending direction L1 and the fingerprint 322 with the extending direction L2, since the extending direction L1 is substantially identical to the extending direction L2, the unified extending direction L3 can be virtually set, and the counterclockwise direction of the unified extending direction L3 is set to be the left side and the clockwise direction is set to be the right side, it can be determined that: the fingerprint 321 corresponds to the sub-region on the opposite left side, and the fingerprint 322 corresponds to the sub-region on the opposite right side, so that only the fingerprint library data corresponding to the standard fingerprint matching the sub-region on the opposite left side, such as the above-mentioned fingerprint library data corresponding to the standard fingerprint a, and the fingerprint library data corresponding to the standard fingerprint B, may be selected for the fingerprint 321, whereas only the fingerprint library data corresponding to the standard fingerprint matching the sub-region on the opposite right side, such as the above-mentioned fingerprint library data corresponding to the standard fingerprint B, and the fingerprint library data corresponding to the standard fingerprint a, may be selected for the fingerprint 322.
In step 214, a fingerprint is identified.
In an embodiment, in the process of identifying each fingerprint, only partial fingerprint database data matched with the finger direction is needed, and each fingerprint is not needed to be compared with the complete fingerprint database data, so that the time spent on identifying each fingerprint is greatly shortened, the response speed of a user can be accelerated, and the identity verification efficiency is improved.
In step 216A, when the fingerprint identification result matches the first fingerprint combination, the screen unlock is triggered.
In step 216B, when the fingerprint identification result matches the second fingerprint combination, the payment barcode interface is triggered to be started.
In an embodiment, the owner of the handset 30 may only pre-enter a fingerprint combination, such as standard fingerprint a+standard fingerprint B, for triggering a single operation, such as screen unlocking; alternatively, the owner may pre-enter various fingerprint combinations, such as standard fingerprint a+standard fingerprint B, standard fingerprint b+standard fingerprint C, etc., for triggering a single operation, such as screen unlocking; or, the owner can input various fingerprint combinations in advance for triggering various operations respectively, such as the fingerprint combination of the standard fingerprint A+the standard fingerprint B for triggering screen unlocking, the fingerprint combination of the standard fingerprint B+the standard fingerprint C for triggering and starting a payment bar code interface, and the like.
Thus, by determining the match between the fingerprint recognition result and the predetermined fingerprint combination, the operation to be performed by the mobile phone 30 can be determined. For example, as shown in fig. 4, when the fingerprint 321 matches the fingerprint a and the fingerprint 322 matches the fingerprint B, the fingerprint 321 and the fingerprint 322 match the fingerprint combination of the fingerprint a+the fingerprint B, and thus, for example, a screen unlocking or other operation may be triggered; for another example, a payment barcode interface or other operation may be triggered, such as initiation, when a fingerprint combination that matches fingerprint b+fingerprint C.
In step 216C, a hint fingerprint error is triggered when the fingerprint identification result does not match any fingerprint combination.
In one embodiment, the user is informed of the fingerprint recognition result by displaying a prompt message such as "fingerprint is incorrect" on the screen of the mobile phone 30. Other authentication methods, such as "enter password" may also be displayed on the screen of the mobile phone 30 to guide the user to use other types of authentication methods.
Corresponding to the foregoing embodiments of the fingerprint identification method, the present disclosure further provides embodiments of the fingerprint identification apparatus.
Fig. 7 is a block diagram of a fingerprint recognition device, according to an exemplary embodiment. Referring to fig. 7, the apparatus includes:
an acquisition unit 71 configured to acquire fingerprint information acquired in the fingerprint detection area;
a data determining unit 72 configured to determine fingerprint library data matched with sub-regions corresponding to the respective fingerprints in the fingerprint detection region, respectively, when the fingerprint information includes a preset number of the plurality of fingerprints, so as to fingerprint-identify the respective fingerprints;
the verification unit 73 is configured to perform authentication of a source of the plurality of fingerprints according to fingerprint identification results for the plurality of fingerprints.
Optionally, the acquiring unit 71 is specifically configured to:
and acquiring all fingerprints acquired in the fingerprint detection area within a preset time length to serve as fingerprint information.
Optionally, the plurality of fingerprints are detected at different locations within the fingerprint detection region.
Optionally, the positions of the fingerprints are respectively in different sub-areas.
As shown in fig. 8, fig. 8 is a block diagram of another fingerprint recognition device according to an exemplary embodiment, which further includes, on the basis of the foregoing embodiment shown in fig. 7:
the processing unit 74 is configured to ignore the fingerprint information when the number of fingerprints comprised by the fingerprint information is smaller than the preset number or not consistent with the preset number.
As shown in fig. 9, fig. 9 is a block diagram of another fingerprint recognition device according to an exemplary embodiment, which corresponds to a fixed range within the fingerprint detection area on the basis of the previous embodiment shown in fig. 7; the apparatus further comprises:
the sub-area determining unit 75 is configured to determine the sub-areas where the respective fingerprints are located, respectively, according to a fixed range to which the position coordinates of the respective fingerprints belong.
It should be noted that the structure of the sub-region determining unit 75 in the device embodiment shown in fig. 9 may be also included in the device embodiment shown in fig. 8, which is not a limitation of the present disclosure.
As shown in fig. 10, fig. 10 is a block diagram of another fingerprint recognition device according to an exemplary embodiment, which further includes, on the basis of the foregoing embodiment shown in fig. 7:
a relationship determination unit 76 configured to determine specific relative positional relationships between each of the plurality of fingerprints and other fingerprints, respectively;
a selection unit 77 configured to select a sub-region of the fingerprint detection area corresponding to each fingerprint, wherein a relative positional relationship between the selected sub-region and other sub-regions corresponds to the specific relative positional relationship.
It should be noted that, the structures of the relationship determining unit 76 and the selecting unit 77 in the apparatus embodiment shown in fig. 10 may be also included in the apparatus embodiment shown in fig. 8 or fig. 9, which is not a limitation of the present disclosure.
As shown in fig. 11, fig. 11 is a block diagram of another fingerprint recognition device according to an exemplary embodiment, which further includes, on the basis of the foregoing embodiment shown in fig. 7:
A combination determining unit 78 configured to determine a preset fingerprint combination matched with the plurality of fingerprints according to the fingerprint identification result;
and a triggering unit 79 configured to trigger a preset operation corresponding to the preset fingerprint combination.
Optionally, the preset operation includes at least one of:
unlocking a screen, starting one or more application programs, switching to a specified contextual model, and sending an emergency message to a target object.
It should be noted that the structure of the combination determining unit 78 and the triggering unit 79 in the apparatus embodiment shown in fig. 11 may also be included in the apparatus embodiments shown in any of fig. 8 to 10, which is not a limitation of the present disclosure.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Correspondingly, the present disclosure also provides a fingerprint identification device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement a fingerprint identification method as described in any of the above embodiments, for example the method may comprise: acquiring fingerprint information acquired in a fingerprint detection area; when the fingerprint information comprises a plurality of fingerprints with preset quantity, determining fingerprint database data matched with the sub-areas according to the sub-areas corresponding to the fingerprints in the fingerprint detection area respectively so as to identify the corresponding fingerprints; and according to fingerprint identification results aiming at the fingerprints, carrying out identity verification on the source side of the fingerprints.
Accordingly, the present disclosure also provides a terminal including a memory, and one or more programs, where the one or more programs are stored in the memory, and configured to be executed by the one or more processors, where the one or more programs include instructions for implementing the fingerprint identification method according to any of the foregoing embodiments, for example, the method may include: acquiring fingerprint information acquired in a fingerprint detection area; when the fingerprint information comprises a plurality of fingerprints with preset quantity, determining fingerprint database data matched with the sub-areas according to the sub-areas corresponding to the fingerprints in the fingerprint detection area respectively so as to identify the corresponding fingerprints; and according to fingerprint identification results aiming at the fingerprints, carrying out identity verification on the source side of the fingerprints.
Fig. 12 is a block diagram illustrating an apparatus 1200 for fingerprint recognition according to an example embodiment. For example, apparatus 1200 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.
Referring to fig. 12, apparatus 1200 may include one or more of the following components: a processing component 1202, a memory 1204, a power component 1206, a multimedia component 1208, an audio component 1210, an input/output (I/O) interface 1212, a sensor component 1214, and a communications component 1216.
The processing component 1202 generally controls overall operation of the apparatus 1200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1202 may include one or more processors 1220 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1202 may include one or more modules that facilitate interactions between the processing component 1202 and other components. For example, the processing component 1202 may include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.
The memory 1204 is configured to store various types of data to support operations at the apparatus 1200. Examples of such data include instructions for any application or method operating on the apparatus 1200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1204 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
Power supply assembly 1206 provides power to the various components of device 1200. The power supply components 1206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 1200.
The multimedia component 1208 includes a screen between the device 1200 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 1200 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 1210 is configured to output and/or input audio signals. For example, the audio component 1210 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 1204 or transmitted via the communications component 1216. In some embodiments, audio assembly 1210 further includes a speaker for outputting audio signals.
The I/O interface 1212 provides an interface between the processing component 1202 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 1214 includes one or more sensors for providing status assessment of various aspects of the apparatus 1200. For example, the sensor assembly 1214 may detect the on/off state of the device 1200, the relative positioning of the components, such as the display and keypad of the device 1200, the sensor assembly 1214 may also detect a change in position of the device 1200 or a component of the device 1200, the presence or absence of user contact with the device 1200, the orientation or acceleration/deceleration of the device 1200, and a change in temperature of the device 1200. The sensor assembly 1214 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 1214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1214 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communications component 1216 is configured to facilitate communication between the apparatus 1200 and other devices, either wired or wireless. The apparatus 1200 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1216 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communications component 1216 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 1200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for performing the fingerprint identification method described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 1204, comprising instructions executable by processor 1220 of apparatus 1200 to perform the fingerprint identification method described above. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (16)
1. A method of fingerprint identification, comprising:
acquiring fingerprint information acquired in a fingerprint detection area;
when the fingerprint information comprises a plurality of fingerprints with preset quantity, respectively determining specific relative position relations between each fingerprint in the plurality of fingerprints and other fingerprints; wherein, when the number of the plurality of fingerprints is two, the extending directions of the plurality of fingerprints are determined, the extending directions are that one end corresponding to the finger web points to the other end corresponding to the finger tip, and when the extending directions of the plurality of fingerprints are the same extending directions, the extending directions of the plurality of fingerprints are virtual as uniform extending directions, and the anticlockwise direction of the uniform extending directions is called left side and the clockwise direction is called right side; one fingerprint is positioned at the left side of the uniform extending direction, and one fingerprint is positioned at the right side of the uniform extending direction;
Selecting a sub-region corresponding to each fingerprint in the fingerprint detection region, wherein the relative position relationship between the selected sub-region and other sub-regions accords with the specific relative position relationship; wherein the fingerprint on the opposite left side is determined to correspond to the sub-region on the left side, and the fingerprint on the opposite right side is determined to correspond to the sub-region on the right side;
determining fingerprint database data matched with the sub-regions according to the sub-regions corresponding to the fingerprints in the fingerprint detection region respectively so as to identify the corresponding fingerprints;
and according to fingerprint identification results aiming at the fingerprints, carrying out identity verification on the source side of the fingerprints.
2. The method of claim 1, wherein the acquiring fingerprint information acquired in the fingerprint detection area comprises:
and acquiring all fingerprints acquired in the fingerprint detection area within a preset time length to serve as fingerprint information.
3. The method of claim 1, wherein the plurality of fingerprints are detected at different locations within the fingerprint detection region.
4. A method according to claim 3, wherein the plurality of fingerprints are located in different sub-regions.
5. The method as recited in claim 1, further comprising:
and when the number of fingerprints contained in the fingerprint information is smaller than the preset number or is inconsistent with the preset number, ignoring the fingerprint information.
6. The method as recited in claim 1, further comprising:
determining preset fingerprint combinations matched with the fingerprints according to the fingerprint identification result;
triggering a preset operation corresponding to the preset fingerprint combination.
7. The method of claim 6, wherein the preset operation comprises at least one of:
unlocking a screen, starting one or more application programs, switching to a specified contextual model, and sending an emergency message to a target object.
8. A fingerprint recognition device, comprising:
an acquisition unit configured to acquire fingerprint information acquired in the fingerprint detection area;
a relationship determination unit configured to determine, when the fingerprint information includes a preset number of a plurality of fingerprints, specific relative positional relationships between each of the plurality of fingerprints and other fingerprints, respectively; wherein, when the number of the plurality of fingerprints is two, the extending directions of the plurality of fingerprints are determined, the extending directions are that one end corresponding to the finger web points to the other end corresponding to the finger tip, and when the extending directions of the plurality of fingerprints are the same extending directions, the extending directions of the plurality of fingerprints are virtual as uniform extending directions, and the anticlockwise direction of the uniform extending directions is called left side and the clockwise direction is called right side; one fingerprint is positioned at the left side of the uniform extending direction, and one fingerprint is positioned at the right side of the uniform extending direction;
A selection unit configured to select a sub-region corresponding to each fingerprint in the fingerprint detection region, wherein a relative positional relationship between the selected sub-region and other sub-regions conforms to the specific relative positional relationship; wherein the fingerprint on the opposite left side is determined to correspond to the sub-region on the left side, and the fingerprint on the opposite right side is determined to correspond to the sub-region on the right side;
the data determining unit is configured to determine fingerprint database data matched with the sub-areas according to the sub-areas corresponding to the fingerprints in the fingerprint detection area respectively so as to carry out fingerprint identification on the corresponding fingerprints;
and the verification unit is configured to perform identity verification on the sources of the fingerprints according to fingerprint identification results of the fingerprints.
9. The apparatus according to claim 8, wherein the acquisition unit is specifically configured to:
and acquiring all fingerprints acquired in the fingerprint detection area within a preset time length to serve as fingerprint information.
10. The apparatus of claim 8, wherein the plurality of fingerprints are detected at different locations within the fingerprint detection region.
11. The apparatus of claim 10, wherein the plurality of fingerprints are located in different sub-regions, respectively.
12. The apparatus as recited in claim 8, further comprising:
and the processing unit is configured to ignore the fingerprint information when the number of fingerprints contained in the fingerprint information is smaller than the preset number or is inconsistent with the preset number.
13. The apparatus as recited in claim 8, further comprising:
a combination determining unit configured to determine a preset fingerprint combination matched with the plurality of fingerprints according to the fingerprint identification result;
and the triggering unit is configured to trigger a preset operation corresponding to the preset fingerprint combination.
14. The apparatus of claim 13, wherein the preset operation comprises at least one of:
unlocking a screen, starting one or more application programs, switching to a specified contextual model, and sending an emergency message to a target object.
15. An electronic device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement the method of any of claims 1-7 by executing the executable instructions.
16. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method of any of claims 1-7.
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| CN112381545A (en) * | 2020-11-20 | 2021-02-19 | 惠州Tcl移动通信有限公司 | Identity authentication method, device, equipment and storage medium |
| CN115113797B (en) * | 2022-08-29 | 2022-12-13 | 深圳市优奕视界有限公司 | Intelligent partition display method of control panel and related product |
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