CN106127152A - A kind of fingerprint template update method and terminal unit - Google Patents
A kind of fingerprint template update method and terminal unit Download PDFInfo
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- CN106127152A CN106127152A CN201610465468.7A CN201610465468A CN106127152A CN 106127152 A CN106127152 A CN 106127152A CN 201610465468 A CN201610465468 A CN 201610465468A CN 106127152 A CN106127152 A CN 106127152A
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/19—Recognition using electronic means
- G06V30/192—Recognition using electronic means using simultaneous comparisons or correlations of the image signals with a plurality of references
- G06V30/194—References adjustable by an adaptive method, e.g. learning
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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
- G06V40/1347—Preprocessing; Feature extraction
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Abstract
The invention discloses a kind of fingerprint template update method, including: obtaining target fingerprint image, described target fingerprint image is to contrast successful fingerprint image with first object fingerprint template fingerprint, and described target fingerprint image meets fingerprint template update condition；Determine the characteristic point of described target fingerprint image and the ratio that overlaps of the characteristic point of described first object fingerprint template；If the ratio that overlaps of the characteristic point of described target fingerprint image and the characteristic point of described first object fingerprint template is more than or equal to first threshold, then using described target fingerprint image as the fingerprint template of terminal unit.The embodiment of the invention also discloses a kind of terminal unit.The embodiment of the present invention is used can constantly to improve registered fingerprint template.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of fingerprint template update method and terminal unit.
Background technology
Fingerprint identification technology has become as main flow terminal equipment (such as smart mobile phone, panel computer etc.) manufacturer's flagship now
The standard configuration of type.Fingerprint recognition can be not only used for the unblock of terminal unit and the function such as wakes up up, is also that mobile payment is important
One ring.Fingerprint pays while meeting user's property easy to use, to safety it is also proposed that higher requirement.
Terminal unit on market today is due to appearance requirement, and fingerprint module does less and less, can cause the fingerprint face identified
Long-pending too small problem.If the registered fingerprint template area of typing is too small, can be because there is no the whole whole typing of finger print information
And on the low side in operational phase fingerprint recognition rate after causing, i.e. refuse sincere meeting higher.If requiring to use fingerprint register when
Typing number of times in family is too much, can affect Consumer's Experience, even and if typing number of times is the most, it is also difficult to must be whole finger print information
All typings, therefore, the most constantly improving registered fingerprint template is this area technical problem urgently to be resolved hurrily.
Summary of the invention
The embodiment of the present invention provides a kind of fingerprint template update method and terminal unit, to constantly improving registered fingerprint mould
Plate.
First aspect, the embodiment of the present invention provides a kind of fingerprint template update method, including:
Obtaining target fingerprint image, described target fingerprint image is successfully to refer to the contrast of first object fingerprint template fingerprint
Print image, and described target fingerprint image meets fingerprint template update condition；
Determine the characteristic point of described target fingerprint image and the ratio that overlaps of the characteristic point of described first object fingerprint template；
If the characteristic point of described target fingerprint image is big with the ratio that overlaps of the characteristic point of described first object fingerprint template
In or equal to first threshold, then using described target fingerprint image as the fingerprint template of terminal unit.
In the implementation that some are possible, if with the fingerprint that described first object fingerprint template is same user's finger
The quantity of template is N, and described N is the integer more than 1, described using described target fingerprint image as the fingerprint mould of terminal unit
Plate, including:
Determine the second target fingerprint template, and be described target fingerprint figure by described second target fingerprint template replacement
Picture, in the fingerprint template that described second target fingerprint template is with described first object fingerprint template is same user's finger
The fingerprint template of least number of times it is matched successfully in first period.
In the implementation that some are possible, if with the fingerprint that described first object fingerprint template is same user's finger
The quantity of template is N, and described N is the integer more than 1, described using described target fingerprint image as the fingerprint mould of terminal unit
Plate, including:
Determine the 3rd target fingerprint template, and be described target fingerprint figure by described 3rd target fingerprint template replacement
Picture；The fingerprint template that described 3rd target fingerprint template is with described first object fingerprint template is same user's finger wraps
Containing the fingerprint template that described target fingerprint image characteristic point number is most, and the feature point number of described target fingerprint image is more than
Or the feature point number equal to described 3rd target fingerprint template.
In the implementation that some are possible, described method also includes:
If the characteristic point of described target fingerprint image is little with the ratio that overlaps of the characteristic point of described first object fingerprint template
In described first threshold more than or equal to the 3rd threshold value, determine described target fingerprint image and described first object fingerprint template
Misaligned region, and utilize first object fingerprint template described in described misaligned area update.
In the implementation that some are possible, described target fingerprint image meets fingerprint template update condition, including: described
The general characteristic of target fingerprint image is more than or equal to the 4th threshold value with the similarity of the general characteristic of described target fingerprint template,
And the definition of described target fingerprint image is more than or equal to the 5th threshold value, then confirm that described target fingerprint image meets fingerprint mould
Plate update condition.
In the implementation that some are possible, described acquisition target fingerprint image, including:
Obtain within the second period with described first object fingerprint template fingerprint than successful W fingerprint image, described W is
Integer more than 1；
Determine the feature point number of described W fingerprint image, and by most for feature point number in described W fingerprint image
Fingerprint image as described target fingerprint image.
Second aspect, the embodiment of the present invention provides a kind of terminal unit, including:
Acquisition module, is used for obtaining target fingerprint image, and described target fingerprint image is for refer to first object fingerprint template
Stricture of vagina contrasts successful fingerprint image, and described target fingerprint image meets fingerprint template update condition；
Determine module, for determining the characteristic point of described target fingerprint image and the feature of described first object fingerprint template
The coincidence ratio of point；
Fingerprint template more new module, if being used for the characteristic point of described target fingerprint image and described first object fingerprint template
The coincidence ratio of characteristic point more than or equal to first threshold, then using described target fingerprint image as the fingerprint mould of terminal unit
Plate.
In the implementation that some are possible, if with the fingerprint that described first object fingerprint template is same user's finger
The quantity of template is N, and described N is the integer more than 1, described fingerprint template more new module specifically for:
Determine the second target fingerprint template, and be described target fingerprint figure by described second target fingerprint template replacement
Picture, in the fingerprint template that described second target fingerprint template is with described first object fingerprint template is same user's finger
The fingerprint template of least number of times it is matched successfully in first period.
In the implementation that some are possible, if with the fingerprint that described first object fingerprint template is same user's finger
The quantity of template is N, and described N is the integer more than 1, described fingerprint template more new module specifically for:
Determine the 3rd target fingerprint template, and be described target fingerprint figure by described 3rd target fingerprint template replacement
Picture；The fingerprint template that described 3rd target fingerprint template is with described first object fingerprint template is same user's finger wraps
Containing the fingerprint template that described target fingerprint image characteristic point number is most, and the feature point number of described target fingerprint image is more than
Or the feature point number equal to described 3rd target fingerprint template.
In the implementation that some are possible, described determine module, if being additionally operable to the characteristic point of described target fingerprint image
It is more than or equal to the 3rd threshold value less than described first threshold, really with the ratio that overlaps of the characteristic point of described first object fingerprint template
Fixed described target fingerprint image and the misaligned region of described first object fingerprint template；
Described fingerprint template more new module, is additionally operable to utilize first object fingerprint mould described in described misaligned area update
Plate.
In the implementation that some are possible, described target fingerprint image meets fingerprint template update condition, including: described
The general characteristic of target fingerprint image is more than or equal to the 4th threshold value with the similarity of the general characteristic of described target fingerprint template,
And the definition of described target fingerprint image is more than or equal to the 5th threshold value, then confirm that described target fingerprint image meets fingerprint mould
Plate update condition.
In the implementation that some are possible, described acquisition module specifically for:
Obtain within the second period with described first object fingerprint template fingerprint than successful W fingerprint image, described W is
Integer more than 1；
Determine the feature point number of described W fingerprint image, and by most for feature point number in described W fingerprint image
Fingerprint image as described target fingerprint image.
The third aspect, embodiments provides a kind of terminal unit, including:
Storage has the memorizer of executable program code；
The processor coupled with described memorizer；
For gathering the fingerprint recognition module of fingerprint image；
Described processor calls the described executable program code of storage in described memorizer, performs such as the embodiment of the present invention
Part or all of step described in first aspect either method.
Fourth aspect, the present invention provides a kind of computer-readable storage medium, is used for saving as embodiment of the present invention second aspect
The computer software instructions used by terminal unit provided, it comprises for performing the program designed by above-mentioned aspect.
The scheme that the present invention provides can contrast successful fingerprint image to fingerprint and be analyzed, full at this fingerprint image
During toe stricture of vagina template renewal condition, determine this fingerprint image characteristic point and therewith fingerprint contrast successful fingerprint template feature
The coincidence ratio of point, in coincidence ratio more than or equal to first threshold, then using target fingerprint image as the fingerprint of terminal unit
Template, it is seen then that in follow-up unlocked by fingerprint, is carried out according to the fingerprint image the inputted fingerprint template to prestoring in terminal unit
Constantly update, and then constantly improve registered fingerprint template.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
A kind of schematic flow sheet solving fingerprint template update method that Fig. 1 provides for first embodiment of the invention；
A kind of schematic flow sheet solving fingerprint template update method that Fig. 2 provides for second embodiment of the invention；
The structural representation of a kind of terminal unit that Fig. 3 provides for first embodiment of the invention；
The structural representation of a kind of terminal unit that Fig. 4 provides for second embodiment of the invention；
The structural representation of a kind of terminal unit that Fig. 5 provides for third embodiment of the invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protection
Enclose.
It is described in detail individually below.
Term " first ", " second ", " the 3rd " and " in description and claims of this specification and described accompanying drawing
Four " it is etc. for distinguishing different object rather than for describing particular order.Additionally, term " includes " and " having " and it
Any deformation, it is intended that cover non-exclusive comprising.Such as contain series of steps or the process of unit, method, be
System, product or equipment are not limited to step or the unit listed, but the most also include step or the list do not listed
Unit, or the most also include other step intrinsic for these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can be wrapped in conjunction with the embodiments
It is contained at least one embodiment of the present invention.It is identical that each position in the description occurs that this phrase might not each mean
Embodiment, be not and the independent of other embodiments mutual exclusion or alternative embodiment.Those skilled in the art explicitly and
Implicitly being understood by, embodiment described herein can combine with other embodiments.
Hereinafter, the part term in the application is explained, in order to skilled artisan understands that.
1), terminal unit, also referred to as subscriber equipment (User Equipment, UE), is that one provides a user with voice
And/or the equipment of data connectivity, such as, there are the portable equipment of wireless connecting function, mobile unit etc..Common terminal
Such as include: mobile phone, panel computer, notebook computer, palm PC, mobile internet device (mobile internet
Device, MID), wearable device, such as intelligent watch, Intelligent bracelet, pedometer etc..
2), fingerprint recognition module, be intended to realize the identification for individual fingerprint characteristic by specific inductive module.Mesh
Before, fingerprint identification module is broadly divided into optical fingerprint module, capacitance type fingerprint module and RF-type fingerprint module.Fingerprint is known
Other module can be arranged in conjunction with the film key dome key of terminal unit, may be provided at the front of terminal unit, the back side or side etc.,
The present invention is not construed as limiting.Equally, fingerprint recognition module can be arranged in conjunction with the touch screen of terminal unit, may be provided at touching of touch screen
The lower section of control panel.
3), the fingerprint feature point of Based on Feature Points fingerprint image, fingerprint feature point includes general characteristic point and local feature
Point, wherein, general characteristic point includes basic grain pattern ring-like (loop), arcuate (arch), screw type (whorl).Local is special
Levy the node a little referring on fingerprint.Two pieces of fingerprints often have an identical general characteristic, but their local feature--node,
But can identical node (Minutia Points) fingerprint lines be continuous print, smooth straight, but often
Interruption, bifurcated or discounting occur.These breakpoints, bifurcation and turning point are known as " node ".It is exactly that these nodes provide finger
The confirmation of stricture of vagina uniqueness.Node on fingerprint has four kinds of different qualities: 1, destination node (Ending)--a lines is at this
Termination；2, bifurcation (Bifurcation): lines is broken up into the lines of two or more at this；3, bifurcation point
(Ridge Divergence): two parallel lines separate at this；4, isolated point (Dot or Island): the shortest
Lines, to such an extent as to become a bit；5, after circling point (Enclosure): lines is broken up into two, it is merged into immediately
Being one, the little ring so formed is referred to as circling point.Fingerprint characteristic data can also include: short grain (Short Ridge):
Hold shorter but be unlikely to become the lines of a bit；Direction (Orientation): node can be towards certain direction；Curvature
(Curvature)--the speed that ridge orientation changes is described；Position (Position): the position of node is by (x, y) coordinate comes
Describe, can be absolute, it is also possible to be relative to triangulation point or characteristic point inductance type identification.
4), " multiple " refer to two or more."and/or", describes the incidence relation of affiliated partner, and expression can be deposited
In three kinds of relations, such as, A and/or B, can represent: individualism A, there is A and B, individualism B these three situation simultaneously.
Character "/" typicallys represent the forward-backward correlation relation to liking a kind of "or".
Refer to the schematic flow sheet of a kind of fingerprint template update method that Fig. 1, Fig. 1 provide for the embodiment of the present invention, bag
Include following steps:
S101, terminal unit obtain target fingerprint image, and described target fingerprint image is for refer to first object fingerprint template
Stricture of vagina contrasts successful fingerprint image, and described target fingerprint image meets fingerprint template update condition.
S102, described terminal unit determine the characteristic point of described target fingerprint image and described first object fingerprint template
The coincidence ratio of characteristic point.
If the ratio that overlaps of the characteristic point of S103 described target fingerprint image and the characteristic point of described first object fingerprint template
Example is more than or equal to first threshold, the most described terminal unit using described target fingerprint image as the fingerprint template of terminal unit.
Fingerprint template is after having registered first at present, generally will not change again, the fingerprint template matter of user's registration
Amount height, subsequent fingerprint discrimination is high, better user experience, and the fingerprint template quality of user's registration is low, and subsequent fingerprint discrimination is low,
Consumer's Experience is poor, but user does not has any fingerprint register training, is it is difficult to ensure that the quality of fingerprint template of registration.
The present invention, by fingerprint template Opening, still can constantly improve during subsequent use and supplement, the most just can make
Obtaining user uses terminal unit the most long, and fingerprint recognition performance is the best.The present invention updates the way of fingerprint template: first obtain
Fingerprint contrasts successful target fingerprint image, and this target fingerprint image meets fingerprint template update condition, it is then determined that
The characteristic point of this fingerprint image and therewith fingerprint contrast the coincidence ratio of the characteristic point of successful fingerprint template, big in coincidence ratio
In or equal to first threshold, then using target fingerprint image as the fingerprint template of terminal unit, it is seen then that at follow-up unlocked by fingerprint
In, according to the fingerprint image of input, the fingerprint template prestored in terminal unit is constantly updated, and then constantly improve registration
Fingerprint template.
Optionally, if being N with the quantity of the fingerprint template that described first object fingerprint template is same user's finger, institute
Stating N is the integer more than 1, terminal unit described in above step S103 using described target fingerprint image as the fingerprint of terminal unit
The detailed description of the invention of template is: described terminal unit determines the second target fingerprint template, and by described second target fingerprint
Template replacement is described target fingerprint image, and described second target fingerprint template is for being same with described first object fingerprint template
The fingerprint template of individual user's finger was matched successfully within the first period the fingerprint template of least number of times.
For example, big in the characteristic point of target fingerprint image and the ratio that overlaps of the characteristic point of first object fingerprint template
In or during equal to the situation of first threshold (such as more than or equal to 70%), represent that this target fingerprint image is relatively good, the most not
The fingerprint template comprised in the fingerprint template set that tube terminal equipment prestores exceeded the quata all using this target fingerprint image as one
Fingerprint template, its concrete mode has: it is same that terminal unit first determines in fingerprint template set with first object fingerprint template
All fingerprint templates of user's finger, it is then determined that above-mentioned all fingerprint templates the first period (such as 1 day, 3 days, 1 week or its
His value) in be matched number of success, subsequently above-mentioned all fingerprint templates will be matched within the first period number of success
The second few target fingerprint template replacement is this target fingerprint image.Such as, it is same user with first object fingerprint template
All fingerprint templates of finger include fingerprint template 1, fingerprint template 2, fingerprint template 3, be matched successful number of times and divide in 1 day
It is not 20 times, 10 times, 2 times, fingerprint template 3 is replaced by target fingerprint image.
Optionally, optionally, if with the number of the fingerprint template that described first object fingerprint template is same user's finger
Amount is the integer more than 1 for N, described N, and described target fingerprint image is set by terminal unit described in above step S103 as terminal
The detailed description of the invention of standby fingerprint template is: described terminal unit determines the 3rd target fingerprint template, and by the described 3rd
Target fingerprint template replacement is described target fingerprint image；Described 3rd target fingerprint template is and described first object fingerprint mould
Plate be same user's finger fingerprint template in comprise the fingerprint template that described target fingerprint image characteristic point number is most, and
The feature point number of described target fingerprint image is more than or equal to the feature point number of described 3rd target fingerprint template.
For example, big in the characteristic point of target fingerprint image and the ratio that overlaps of the characteristic point of first object fingerprint template
In or during equal to the situation of first threshold (such as more than or equal to 70%), represent that this target fingerprint image is relatively good, the most not
The fingerprint template comprised in the fingerprint template set that tube terminal equipment prestores exceeded the quata all using this target fingerprint image as one
Fingerprint template, its concrete mode has: it is same that terminal unit first determines in fingerprint template set with first object fingerprint template
All fingerprint templates of user's finger, it is then determined that the number of characteristic point that above-mentioned all fingerprint templates comprise, then determine above-mentioned
All fingerprint templates comprise the 3rd target fingerprint image that feature point number is most, then judges that the 3rd target fingerprint image comprises
The feature point number that whether comprises less than target fingerprint image of feature point number, if so, by the 3rd target fingerprint template replacement
For described target fingerprint image, if it is not, can be according to target fingerprint image update the 3rd target fingerprint template.Wherein, the tool of renewal
Body embodiment can be found in the following stated.
Optionally, the method shown in Fig. 1 also includes:
If the characteristic point of described target fingerprint image is little with the ratio that overlaps of the characteristic point of described first object fingerprint template
In described first threshold more than or equal to the 3rd threshold value, described terminal unit determines described target fingerprint image and described first mesh
The misaligned region of mark fingerprint template, and utilize first object fingerprint template described in described misaligned area update.
Optionally, described misaligned region includes that described target fingerprint image is relative to described first object fingerprint template
First misaligned region and first object fingerprint template are relative to the second misaligned region of described target fingerprint image, described end
Described in misaligned area update described in end equipment utilization, the detailed description of the invention of first object fingerprint template has: described terminal unit
Determine the coincidence ratio of the characteristic point in described first misaligned region and described second misaligned region；If it is described first misaligned
The coincidence ratio of the characteristic point in region and described second misaligned region is less than or equal to the 6th threshold value, and described terminal unit is by institute
State the first misaligned region to add to described first object fingerprint template；If described first misaligned region and described second is not
The coincidence ratio of the characteristic point of overlapping region is more than described 6th threshold value and is less than or equal to the 7th threshold value, and described terminal unit will
Described first misaligned region is added to described second misaligned district relative to the misaligned region in described second misaligned region
In territory；If the coincidence ratio of the characteristic point in described first misaligned region and described second misaligned region is more than described 7th threshold
It is worth and less than or equal to the 8th threshold value, described second misaligned region is replaced by described first misaligned district by described terminal unit
Territory.
As an example it is assumed that the first misaligned region is A, the second misaligned region is B, if the characteristic point of A and the feature of B
The registration of point represents first object fingerprint template non-inclusion region A less than or equal to the 6th threshold value (such as close to 5%), should
The situation of kind, directly adds A to first object fingerprint template, if the registration of the characteristic point of the characteristic point of A and B is more than the 6th
Less than or equal to the 7th threshold value (such as 20%～50%), threshold value represents that first object fingerprint template has the fraction of inclusion region A
Region, this kind of situation, directly that A is relative and B misaligned region is added to B, if the weight of the characteristic point of the characteristic point of A and B
Less than or equal to the 8th threshold value (such as 50%～70%), right the 7th threshold value that is more than represents that first object fingerprint template has and comprises
Most of region of region A, this kind of situation, directly B is replaced by A.
It should be noted that overlapping region represents certain region of first object fingerprint image and first object fingerprint template
Characteristic point registration the highest (such as more than 80%), in like manner, misaligned region representation first object fingerprint image and the first mesh
The characteristic point registration relatively low (such as 0～80%) in certain region of mark fingerprint template.
Optionally, described target fingerprint image meets fingerprint template update condition, total including: described target fingerprint image
Body characteristics is more than or equal to the 4th threshold value, and described target fingerprint figure with the similarity of the general characteristic of described target fingerprint template
The definition of picture is more than or equal to the 5th threshold value, then confirm that described target fingerprint image meets fingerprint template update condition.
Optionally, described in above step S101, the detailed description of the invention of terminal unit acquisition target fingerprint image is: described
Terminal unit obtain within the second period with described first object fingerprint template fingerprint than successful W fingerprint image, described W is
Integer more than 1；Described terminal unit determines the feature point number of described W fingerprint image, and by described W fingerprint image
The most fingerprint image of middle feature point number is as described target fingerprint image.
For example, user presses the dynamics of fingerprint recognition module and varies in size, and fingerprint recognition module may be caused to obtain
To the feature point number of fingerprint image be different, the fingerprint image using feature point number more goes to update fingerprint template phase
Updating fingerprint template effect for using the less fingerprint image of feature point number to go can more preferably, and therefore terminal unit obtains the
Two periods (such as 1 day, 3 days, 1 week, 2 weeks or other values) interior fingerprint contrasts successful W fingerprint image, then from this W
The fingerprint image that in fingerprint image, selected characteristic point number is most is as target fingerprint image.It addition, by fingerprint in a period of time
Contrast successful multiple fingerprint image and carry out fingerprint template renewal criticism together, the most just carry out fingerprint relative to often the match is successful
Template renewal is criticized, and this programme can reduce the power consumption of terminal unit.
The embodiment of the present invention additionally provides another more detailed method flow, as in figure 2 it is shown, include:
S201, terminal unit obtain target fingerprint image, and described target fingerprint image is for refer to first object fingerprint template
Stricture of vagina contrasts successful fingerprint image.
S202, described terminal unit judge whether described target fingerprint image meets fingerprint template update condition.
The most then perform step S203.
If it is not, the most do not make any operation.
S203, described terminal unit determine the characteristic point of described target fingerprint image and described first object fingerprint template
The coincidence ratio of characteristic point.
S204, described terminal unit judge that whether described coincidence ratio is more than or equal to first threshold.
The most then perform step S205.
If it is not, then perform step S207.
S205, described terminal unit determine that the second target fingerprint template, described second target fingerprint template are and described
One target fingerprint template be same user's finger fingerprint template within the first period, be matched successfully the finger of least number of times
Stricture of vagina template.
Described second target fingerprint template replacement is described target fingerprint image by S206, described terminal unit.
S207, described terminal unit determine the misaligned district of described target fingerprint image and described first object fingerprint template
Territory, and utilize first object fingerprint template described in described misaligned area update.
It should be noted that the process that implements of each step of the method shown in Fig. 2 can be found in described in said method
Implement process, no longer describe at this.
The embodiment of the present invention additionally provides a kind of terminal unit 300, as it is shown on figure 3, include:
Acquisition module 301, is used for obtaining target fingerprint image, and described target fingerprint image is and first object fingerprint template
Fingerprint contrasts successful fingerprint image, and described target fingerprint image meets fingerprint template update condition；
Determine module 302, for determining the characteristic point of described target fingerprint image and described first object fingerprint template
The coincidence ratio of characteristic point；
Fingerprint template more new module 303, if being used for the characteristic point of described target fingerprint image and described first object fingerprint
The coincidence ratio of the characteristic point of template is more than or equal to first threshold, then using described target fingerprint image as the finger of terminal unit
Stricture of vagina template.
Optionally, if being N with the quantity of the fingerprint template that described first object fingerprint template is same user's finger, institute
Stating N is the integer more than 1, fingerprint template more new module 303 specifically for:
Determine the second target fingerprint template, and be described target fingerprint figure by described second target fingerprint template replacement
Picture, in the fingerprint template that described second target fingerprint template is with described first object fingerprint template is same user's finger
The fingerprint template of least number of times it is matched successfully in first period.
Optionally, if being N with the quantity of the fingerprint template that described first object fingerprint template is same user's finger, institute
Stating N is the integer more than 1, fingerprint template more new module 303 specifically for:
Determine the 3rd target fingerprint template, and be described target fingerprint figure by described 3rd target fingerprint template replacement
Picture；The fingerprint template that described 3rd target fingerprint template is with described first object fingerprint template is same user's finger wraps
Containing the fingerprint template that described target fingerprint image characteristic point number is most, and the feature point number of described target fingerprint image is more than
Or the feature point number equal to described 3rd target fingerprint template.
Optionally, determine module 302, if being additionally operable to the characteristic point of described target fingerprint image and described first object fingerprint
The coincidence ratio of the characteristic point of template more than or equal to the 3rd threshold value, determines described target fingerprint image less than described first threshold
Misaligned region with described first object fingerprint template；
Fingerprint template more new module 303, is additionally operable to utilize first object fingerprint template described in described misaligned area update.
Optionally, described target fingerprint image meets fingerprint template update condition, total including: described target fingerprint image
Body characteristics is more than or equal to the 4th threshold value, and described target fingerprint figure with the similarity of the general characteristic of described target fingerprint template
The definition of picture is more than or equal to the 5th threshold value, then confirm that described target fingerprint image meets fingerprint template update condition.
Optionally, acquisition module 301 specifically for:
Obtain within the second period with described first object fingerprint template fingerprint than successful W fingerprint image, described W is
Integer more than 1；Determine the feature point number of described W fingerprint image, and by feature point number in described W fingerprint image
Most fingerprint images is as described target fingerprint image.
(acquisition module 301, determine module 302 and fingerprint template more new module it should be noted that above-mentioned each module
303) for performing the correlation step of said method.
In the present embodiment, terminal unit 300 is to present in modular form.Here " module " can refer to specific answering
With integrated circuit (application-specific integrated circuit, ASIC), perform one or more software or
The processor of firmware program and memorizer, integrated logic circuit, and/or other can provide the device of above-mentioned functions.Additionally, with
Upper acquisition module 301, determine that module 302 and fingerprint template more new module 303 can be by the place of the terminal unit shown in Fig. 4
Reason device 401 realizes.
As shown in Figure 4, terminal unit 400 can realize with the structure in Fig. 4, and this terminal unit 400 includes at least one
Individual processor 401, at least one memorizer 402, at least one communication interface 403 and fingerprint recognition module 404.Described process
Device 401, described memorizer 402, described communication interface 403 and fingerprint recognition module 404 are connected and complete by described communication bus
Become mutual communication.
Processor 401 can be general central processor (CPU), microprocessor, ASIC
(application-specific integrated circuit, ASIC), or one or more for controlling above scheme journey
The integrated circuit that sequence performs.
Communication interface 403, is used for and other equipment or communication, such as Ethernet, wireless access network (RAN), nothing
Line LAN (Wireless Local Area Networks, WLAN) etc..
Fingerprint recognition module 404, is used for gathering fingerprint image.
Memorizer 402 can be that read only memory (read-only memory, ROM) maybe can store static information and instruction
Other kinds of static storage device, random access memory (random access memory, RAM) or letter can be stored
Breath and the other kinds of dynamic memory of instruction, it is also possible to be EEPROM (Electrically
Erasable Programmable Read-Only Memory, EEPROM), read-only optical disc (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storage, laser disc storage (include compress laser disc, laser dish, laser disc, digital universal
Laser disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or storing that there is finger
Order or the desired program code of data structure form by any other medium of computer access, but can be not limited to this.
Memorizer can be to be individually present, and is connected with processor by bus.Memorizer can also integrate with processor.
Wherein, described memorizer 402 is used for storing the application code performing above scheme, and by processor 401
Control to perform.Described processor 401 is for performing the application code of storage in described memorizer 402.
The code of memorizer 402 storage can perform the Process flowchart side of Fig. 1-Fig. 3 that terminal unit provided above performs
Method, such as obtains target fingerprint image, and described target fingerprint image is successfully to refer to the contrast of first object fingerprint template fingerprint
Print image, and described target fingerprint image meets fingerprint template update condition；Determine the characteristic point of described target fingerprint image with
The coincidence ratio of the characteristic point of described first object fingerprint template；If the characteristic point of described target fingerprint image and described first mesh
Described target fingerprint image more than or equal to first threshold, is then set by the coincidence ratio of the characteristic point of mark fingerprint template as terminal
Standby fingerprint template.
The embodiment of the present invention additionally provides a more specifically application scenarios, as follows: above-mentioned terminal unit is mobile phone, under
Face combines Fig. 5 and each component parts of mobile phone carries out concrete introduction:
RF circuit 510 can be used for receiving and sending messages or in communication process, the reception of signal and transmission, especially, by base station
After downlink information receives, process to processor 580；It addition, be sent to base station by designing up data.Generally, RF circuit 510
Include but not limited to antenna, at least one amplifier, transceiver, bonder, low-noise amplifier (Low Noise
Amplifier, LNA), duplexer etc..Additionally, RF circuit 510 can also be communicated with network and other equipment by radio communication.
Above-mentioned radio communication can use arbitrary communication standard or agreement, includes but not limited to global system for mobile communications (Global
System of Mobile communication, GSM), general packet radio service (General Packet Radio
Service, GPRS), CDMA (Code Division Multiple Access, CDMA), WCDMA
(Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution,
LTE), Email, Short Message Service (Short Messaging Service, SMS) etc..
Memorizer 520 can be used for storing software program and module, and processor 580 is stored in memorizer 520 by operation
Software program and module, thus perform mobile phone various functions application and data process.Memorizer 520 can mainly include
Storage program area and storage data field, wherein, storage program area can store the application journey needed for operating system, at least one function
Sequence (such as fingerprint image obtains function, fingerprint contrast processes function, fingerprint image piecemeal function) etc.；Storage data field can store
The data that use according to mobile phone is created (are such as known the fingerprint image of module collection by fingerprint, are added up the N number of fingerprint prestored
The priority of template) etc..Additionally, memorizer 520 can include high-speed random access memory, it is also possible to include non-volatile depositing
Reservoir, for example, at least one disk memory, flush memory device or other volatile solid-state parts.
Input block 530 can be used for receiving numeral or the character information of input, and produce with the user setup of mobile phone with
And function controls relevant key signals input.Specifically, input block 530 can include contact panel 531, other input equipments
532 and fingerprint recognition module 533.Contact panel 531, also referred to as touch screen, can collect user thereon or neighbouring touch
(such as user uses any applicable object such as finger, stylus or adnexa on contact panel 531 or at contact panel in operation
Operation near 531), and drive corresponding attachment means according to formula set in advance.Optionally, contact panel 531 can wrap
Include touch detecting apparatus and two parts of touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect
The signal that touch operation brings, transmits a signal to touch controller；Touch controller receives touch from touch detecting apparatus
Information, and be converted into contact coordinate, then give processor 580, and order that processor 580 sends can be received and held
OK.Furthermore, it is possible to use the polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave to realize contact panel 531.Remove
With contact panel 531, input block 530 can also include other input equipments 532.Specifically, other input equipments 532 can
To include but not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars
At least one in Deng.Fingerprint recognition module 533 can be arranged in conjunction with the dome key of terminal unit, it is possible to combination of touch control panel 531
Arrange.Such as fingerprint recognition module 533 is arranged at below contact panel 531, when the touch of the finger touch terminal equipment of user
During screen, it is placed in the fingerprint image that the fingerprint recognition module 533 below contact panel 531 can collect the finger of user.
Display unit 540 can be used for the various of the information that inputted by user of display or the information being supplied to user and mobile phone
Menu.Display unit 540 can include display floater 541, optionally, can use liquid crystal display (Liquid Crystal
Display, LCD), the form such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) configure aobvious
Show panel 541.Further, contact panel 531 can cover display floater 541, when contact panel 531 detects thereon or attached
After near touch operation, send processor 580 to determine the type of touch event, with preprocessor 580 according to touch event
Type corresponding visual output is provided on display floater 541.Although in Figure 5, contact panel 531 and display floater 541
It is to realize input and the input function of mobile phone as two independent parts, but in some embodiments it is possible to by touch-control
Panel 531 is integrated with display floater 541 and realizes input and the output function of mobile phone.
Mobile phone may also include at least one sensor 550, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor can include ambient light sensor and proximity transducer, and wherein, ambient light sensor can be according to ambient light
Light and shade regulate the brightness of display floater 541, proximity transducer can cut out display floater 541 when mobile phone moves in one's ear
And/or backlight.As the one of motion sensor, accelerometer sensor can detect (generally three axles) acceleration in all directions
Size, can detect that size and the direction of gravity time static, can be used for identify mobile phone attitude application (such as horizontal/vertical screen is cut
Change, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；Also may be used as mobile phone
Other sensors such as the gyroscope of configuration, barometer, drimeter, thermometer, infrared ray sensor, do not repeat them here.
Voicefrequency circuit 560, speaker 561, microphone 562 can provide the audio interface between user and mobile phone.Audio-frequency electric
The signal of telecommunication after the voice data conversion that road 560 can will receive, is transferred to speaker 561, speaker 561 is converted to sound
Signal exports；On the other hand, the acoustical signal of collection is converted to the signal of telecommunication by microphone 562, voicefrequency circuit 560 turn after receiving
It is changed to voice data, then after voice data output processor 580 is processed, through RF circuit 510 to be sent to such as another mobile phone,
Or voice data is exported to memorizer 520 to process further.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronics postal by WiFi module 570
Part, browsing webpage and access streaming video etc., it has provided the user wireless broadband internet and has accessed.Although Fig. 5 shows
WiFi module 570, but it is understood that, it is also not belonging to must be configured into of mobile phone, can not change as required completely
Omit in the scope of the essence becoming invention.
Processor 580 is the control centre of mobile phone, utilizes various interface and the various piece of the whole mobile phone of connection, logical
Cross operation or perform to be stored in the software program in memorizer 520 and/or module, and calling and be stored in memorizer 520
Data, perform the various functions of mobile phone and process data, thus mobile phone is carried out integral monitoring.Optionally, processor 580 can wrap
Include one or more processing unit；Preferably, processor 580 can integrated application processor and modem processor, wherein, should
Mainly process operating system, user interface and application program etc. with processor, modem processor mainly processes radio communication.
It is understood that above-mentioned modem processor can not also be integrated in processor 580.
Mobile phone also includes the power supply 590 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply pipe
Reason system is logically contiguous with processor 580, thus realizes management charging, electric discharge and power managed by power-supply management system
Etc. function.
Although not shown, mobile phone can also include photographic head, bluetooth module etc., does not repeats them here.
In previous embodiment, each step method flow process can structure based on the terminal unit shown in Fig. 5 realize.
The embodiment of the present invention also provides for a kind of computer-readable storage medium, and wherein, this computer-readable storage medium can store journey
Sequence, this program includes the part or all of of any fingerprint template update method described in said method embodiment when performing
Step.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement because
According to the present invention, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should know
Knowing, embodiment described in this description belongs to preferred embodiment, involved action and the module not necessarily present invention
Necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has the portion described in detail in certain embodiment
Point, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, can be by another way
Realize.Such as, device embodiment described above is only schematically, and the division of the most described unit is only one
Logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or can
To be integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit or communication connection,
Can be being electrical or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated list
Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit
Time, can be stored in a computer-readable access to memory.Based on such understanding, technical scheme substantially or
What person said the part contributing prior art or this technical scheme completely or partially can be with the form body of software product
Revealing to come, this computer software product is stored in a memorizer, including some instructions with so that a computer equipment
(can be for personal computer, server or the network equipment etc.) perform all or part of of method described in each embodiment of the present invention
Step.And aforesaid memorizer includes: USB flash disk, read only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), portable hard drive, magnetic disc or CD.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completing instructing relevant hardware by program, this program can be stored in a computer-readable memory, memorizer
May include that flash disk, read only memory (English: Read-Only Memory, be called for short: ROM), random access device (English:
RAM), disk or CD etc. Random Access Memory, is called for short:.
Above the embodiment of the present invention is described in detail, specific case used herein to the principle of the present invention and
Embodiment is set forth, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；
Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, the most all can
Change part, and the most above-mentioned, this specification content should not be construed as limitation of the present invention.
Claims (13)
1. a fingerprint template update method, it is characterised in that including:
Obtaining target fingerprint image, described target fingerprint image is to contrast successful fingerprint image with first object fingerprint template fingerprint
Picture, and described target fingerprint image meets fingerprint template update condition；
Determine the characteristic point of described target fingerprint image and the ratio that overlaps of the characteristic point of described first object fingerprint template；
If the ratio that overlaps of the characteristic point of described target fingerprint image and the characteristic point of described first object fingerprint template more than or
Equal to first threshold, then using described target fingerprint image as the fingerprint template of terminal unit.
Method the most according to claim 1, it is characterised in that if being same user with described first object fingerprint template
The quantity of the fingerprint template of finger is N, and described N is the integer more than 1, described using described target fingerprint image as terminal unit
Fingerprint template, including:
Determine the second target fingerprint template, and be described target fingerprint image by described second target fingerprint template replacement, institute
State in the fingerprint template that the second target fingerprint template is with described first object fingerprint template is same user's finger first
The fingerprint template of least number of times it is matched successfully in period.
Method the most according to claim 1, it is characterised in that if being same user with described first object fingerprint template
The quantity of the fingerprint template of finger is N, and described N is the integer more than 1, described using described target fingerprint image as terminal unit
Fingerprint template, including:
Determine the 3rd target fingerprint template, and be described target fingerprint image by described 3rd target fingerprint template replacement；Institute
State in the fingerprint template that the 3rd target fingerprint template is with described first object fingerprint template is same user's finger and comprise institute
State the fingerprint template that target fingerprint image characteristic point number is most, and the feature point number of described target fingerprint image more than or etc.
Feature point number in described 3rd target fingerprint template.
4. according to the method described in any one of claim 1-3, it is characterised in that described method also includes:
If the characteristic point of described target fingerprint image is less than institute with the ratio that overlaps of the characteristic point of described first object fingerprint template
State first threshold more than or equal to the 3rd threshold value, determine not weighing of described target fingerprint image and described first object fingerprint template
Close region, and utilize first object fingerprint template described in described misaligned area update.
5. according to the method described in any one of claim 1-4, it is characterised in that described target fingerprint image meets fingerprint template
Update condition, including: the similarity of the general characteristic of the general characteristic of described target fingerprint image and described target fingerprint template
More than or equal to the 4th threshold value, and the definition of described target fingerprint image is more than or equal to the 5th threshold value, then confirm described mesh
Mark fingerprint image meets fingerprint template update condition.
6. according to the method described in any one of claim 1-5, it is characterised in that described acquisition target fingerprint image, including:
Obtain within the second period with described first object fingerprint template fingerprint than successful W fingerprint image, described W is for being more than
The integer of 1；
Determine the feature point number of described W fingerprint image, and by fingers most for feature point number in described W fingerprint image
Print image is as described target fingerprint image.
7. a terminal unit, it is characterised in that including:
Acquisition module, is used for obtaining target fingerprint image, and described target fingerprint image is and first object fingerprint template fingerprint pair
The successful fingerprint image of ratio, and described target fingerprint image meets fingerprint template update condition；
Determine module, be used for the characteristic point the determining described target fingerprint image characteristic point with described first object fingerprint template
Coincidence ratio；
Fingerprint template more new module, if being used for the characteristic point of described target fingerprint image and the spy of described first object fingerprint template
The coincidence ratio a little of levying is more than or equal to first threshold, then using described target fingerprint image as the fingerprint template of terminal unit.
Terminal unit the most according to claim 7, it is characterised in that if being same with described first object fingerprint template
The quantity of the fingerprint template of user's finger is N, and described N is the integer more than 1, described fingerprint template more new module specifically for:
Determine the second target fingerprint template, and be described target fingerprint image by described second target fingerprint template replacement, institute
State in the fingerprint template that the second target fingerprint template is with described first object fingerprint template is same user's finger first
The fingerprint template of least number of times it is matched successfully in period.
Terminal unit the most according to claim 7, it is characterised in that if being same with described first object fingerprint template
The quantity of the fingerprint template of user's finger is N, and described N is the integer more than 1, described fingerprint template more new module specifically for:
Determine the 3rd target fingerprint template, and be described target fingerprint image by described 3rd target fingerprint template replacement；Institute
State in the fingerprint template that the 3rd target fingerprint template is with described first object fingerprint template is same user's finger and comprise institute
State the fingerprint template that target fingerprint image characteristic point number is most, and the feature point number of described target fingerprint image more than or etc.
Feature point number in described 3rd target fingerprint template.
10. according to the terminal unit described in any one of claim 7-9, it is characterised in that
Described determine module, if being additionally operable to the characteristic point of described target fingerprint image and the feature of described first object fingerprint template
The coincidence ratio of point more than or equal to the 3rd threshold value, determines described target fingerprint image and described first less than described first threshold
The misaligned region of target fingerprint template；
Described fingerprint template more new module, is additionally operable to utilize first object fingerprint template described in described misaligned area update.
11. according to the terminal unit described in any one of claim 7-10, it is characterised in that described target fingerprint image meets finger
Stricture of vagina template renewal condition, including: the general characteristic of the general characteristic of described target fingerprint image and described target fingerprint template
Similarity is more than or equal to the 4th threshold value, and the definition of described target fingerprint image is more than or equal to the 5th threshold value, then confirm
Described target fingerprint image meets fingerprint template update condition.
12. according to the terminal unit described in any one of claim 7-11, it is characterised in that described acquisition module specifically for:
Obtain within the second period with described first object fingerprint template fingerprint than successful W fingerprint image, described W is for being more than
The integer of 1；
Determine the feature point number of described W fingerprint image, and by fingers most for feature point number in described W fingerprint image
Print image is as described target fingerprint image.
13. 1 kinds of terminal units, it is characterised in that including:
Storage has the memorizer of executable program code；
The processor coupled with described memorizer；
For gathering the fingerprint recognition module of fingerprint image；
Described processor calls the described executable program code of storage in described memorizer, performs as arbitrary in claim 1 to 6
Method described in Xiang.
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