CN105550630B - A kind of fingerprint authentication method and device - Google Patents
A kind of fingerprint authentication method and device Download PDFInfo
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- CN105550630B CN105550630B CN201510490583.5A CN201510490583A CN105550630B CN 105550630 B CN105550630 B CN 105550630B CN 201510490583 A CN201510490583 A CN 201510490583A CN 105550630 B CN105550630 B CN 105550630B
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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
- 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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Abstract
The invention discloses a kind of fingerprint authentication methods, comprising: at least two fingers of acquisition specify the fingerprint in region to obtain the original fingerprint image of each finger；The collected original fingerprint image is combined to obtain verifying fingerprint image；Extract the fingerprint feature information of the verifying fingerprint image；Judge whether the fingerprint feature information extracted matches with pre-stored fingerprint feature information, and exports judging result.Correspondingly, the invention also discloses a kind of fingerprint verifying apparatus.Using the present invention, the leakage of complete finger print information can be prevented from the source of fingerprint collecting, improves the safety of fingerprint.
Description
Technical field
The present invention relates to information technology field more particularly to a kind of fingerprint authentication methods and device.
Background technique
Fingerprint refers to the convex recessed uneven streakline generated of the positive surface skin in the end of people, and the regular arrangement of streakline forms different
Line type.It is exactly between ten fingers of same people, fingerprint also has significant difference, therefore fingerprint can since everyone fingerprint is different
For identity authentication.Fingerprint feature point provides the confirmation message of fingerprint uniqueness, wherein most typical fingerprint feature point is eventually
Node and bifurcation, other further include ramification point, isolated point, circling point, short grain etc..Fingerprint feature point parameter includes direction (node
Can be towards certain direction), curvature (description ridge orientation change speed), position (position of node by x/y coordinate come
Description, can be absolute, be also possible to relative to triangulation point or characteristic point).Current fingerprint authentication method all passes through
The finger print information of complete single or multiple fingers is verified, and there are the risks of fingerprint complete information leakage.
Summary of the invention
The present invention provides a kind of fingerprint authentication method and device, can prevent complete finger print from believing from the source of fingerprint collecting
The leakage of breath improves the safety of fingerprint.
First aspect present invention provides a kind of fingerprint authentication method, comprising:
It acquires at least two fingers and specifies the fingerprint in region to obtain the original fingerprint image of each finger；
The collected original fingerprint image is combined to obtain verifying fingerprint image；
Extract the fingerprint feature information of the verifying fingerprint image；
Judge whether the fingerprint feature information extracted matches with pre-stored fingerprint feature information, and exports judgement
As a result.
Wherein, at least two fingers of the acquisition specify the fingerprint in region to obtain the original fingerprint figure of each finger
As including:
Simultaneously or sequentially acquiring at least two finger specifies the fingerprint in region to obtain the original of each finger
Fingerprint image.
Preferably, at least two fingers of the acquisition specify the fingerprint in region to obtain the original fingerprint of each finger
Image includes:
The fingerprint for acquiring the first finger left area, right area, upper-side area or underside area is original to obtain first
Fingerprint image；And
The fingerprint for acquiring second finger left area, right area, upper-side area or underside area is original to obtain second
Fingerprint image；
It is described the collected original fingerprint image to be combined to obtain verifying fingerprint image and include:
The first original fingerprint image and the second original fingerprint image are combined according to default combination
To obtain the verifying fingerprint image.
Further, the fingerprint feature information for extracting the verifying fingerprint image includes:
It detects described in the verifying fingerprint image between the first original fingerprint image and the second original fingerprint image
White space area and/or edge radian, using the testing result as the fingerprint feature information.
Wherein, the fingerprint feature information includes at least one in fingerprint pattern, fingerprint form and fingerprint feature point parameter
Kind.
Correspondingly, second aspect of the present invention additionally provides a kind of fingerprint verifying apparatus, comprising:
Finger print acquisition module specifies the fingerprint in region for acquiring at least two fingers to obtain the original of each finger
Beginning fingerprint image；
Fingerprint image processing module, for being combined the collected original fingerprint image to obtain verifying fingerprint
Image；
Characteristic information extracting module, for extracting the fingerprint feature information of the verifying fingerprint image；
Judgment module, for judge extract the fingerprint feature information and pre-stored fingerprint feature information whether
Match；
Output module, for exporting judging result.
The finger print acquisition module is specifically used for:
Simultaneously or sequentially acquiring at least two finger specifies the fingerprint in region to obtain the original of each finger
Fingerprint image.
Preferably, the finger print acquisition module is specifically used for:
The fingerprint for acquiring the first finger left area, right area, upper-side area or underside area is original to obtain first
Fingerprint image；And
The fingerprint for acquiring second finger left area, right area, upper-side area or underside area is original to obtain second
Fingerprint image；
The fingerprint image processing module is specifically used for:
The first original fingerprint image and the second original fingerprint image are combined according to default combination
To obtain the verifying fingerprint image.
Further, the characteristic information extracting module is specifically used for:
It detects described in the verifying fingerprint image between the first original fingerprint image and the second original fingerprint image
White space area and/or edge radian, using the testing result as the fingerprint feature information.
Wherein, the fingerprint feature information includes at least one in fingerprint pattern, fingerprint form and fingerprint feature point parameter
Kind.
Implement the present invention, has the advantages that
The present invention specifies the fingerprint in region by least two fingers of acquisition to obtain the original fingerprint of each finger
Image, and the collected original fingerprint image is combined to obtain verifying fingerprint image, then to verifying fingerprint image
It carries out matching judgment and the partial fingerprints of each finger is only acquired, from fingerprint collecting when acquiring the original fingerprint image
Source on prevent the leakage of complete finger print information, improve the safety of fingerprint.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of fingerprint authentication method provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of combined authentication fingerprint image provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another combined authentication fingerprint image provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another combined authentication fingerprint image provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another combined authentication fingerprint image provided in an embodiment of the present invention；
Fig. 6 is the flow diagram of another fingerprint authentication method provided in an embodiment of the present invention；
Fig. 7 is a kind of fingerprint verifying apparatus provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is a kind of flow diagram of fingerprint authentication method provided in an embodiment of the present invention；The present invention
Embodiment can be applied to any authentication system comprising fingerprint authentication, such as access control system, terminal screen unlock, file solution
Lock etc.；As shown in Figure 1, the fingerprint authentication method may include:
Step S101, at least two fingers of acquisition specify the fingerprint in region to obtain the original fingerprint figure of each finger
Picture.
Specifically, the original fingerprint image of finger can be acquired by fingerprint acquisition instrument.The original fingerprint image is
By the collected untreated fingerprint image of fingerprint acquisition instrument, the original fingerprint image of each finger contains only this
The partial fingerprints of finger, the partial fingerprints are the fingerprint that its finger specifies region.Fingerprint acquisition instrument can be equipped with fingerprint sensor,
The fingerprint sensor is broadly divided into scratching formula and two kinds of push type by acquisition mode, has optics at present by signal acquisition principle
Formula, pressure sensitive, condenser type, inductance type, heat-sensitive type and ultrasonic type etc..In addition, fingerprint acquisition instrument can also pass through scanner, number
Word camera etc. obtains fingerprint image.
In the specific implementation, the fingerprint of the finger left area, right area, upper-side area or underside area can be acquired
Original fingerprint image as each finger；It should be noted that how divide up and down to fingerprint is ability
Field technique personnel are intelligible, and details are not described herein.
When acquiring the fingerprint of at least two fingers, for acquiring the fingerprint of two fingers, following two can be passed through
Any one acquisition in mode:
Mode one: fingerprint acquisition instrument is set there are two fingerprint sensor, obtains two respectively by described two fingerprint sensors
A finger specifies the fingerprint in region to obtain the original fingerprint image of described two fingers；In the specific implementation, using fingerprint collecting
First fingerprint sensor of instrument acquires the specified region of the first finger, such as left area, right area, upper-side area or lower lateral areas
The fingerprint in domain is as the first original fingerprint image；And second finger is acquired using the second fingerprint sensor of fingerprint acquisition instrument
Specified region, if the fingerprint of left area, right area, upper-side area or underside area is as the second original fingerprint image；
Wherein, the specified region of the first finger and second finger can be identical or different, and the present invention is without limitation.
Wherein, the fingerprint that specified fingerprint sensor acquires specified finger can be set in fingerprint acquisition instrument, for example, setting is specified
The left side collected fingerprint image of fingerprint sensor is the original fingerprint image of the first finger in fingerprint acquisition instrument, and right side fingerprint passes
The collected fingerprint image of sensor is the original fingerprint image of second finger.
Mode two: fingerprint acquisition instrument is equipped with a fingerprint sensor, passes sequentially through the fingerprint sensor and obtains two fingers
The fingerprint in region is specified to obtain the original fingerprint image of described two fingers；
The original fingerprint image of acquisition can be determined according to the sequencing of fingerprint collecting, for example, setting acquires for the first time
The fingerprint image arrived is the first original fingerprint image, and collected fingerprint image is the second original fingerprint image again, can be with
The fingerprint that the first finger specifies region is first acquired, such as the fingerprint conduct of left area, right area, upper-side area or underside area
First original fingerprint image, then acquire the fingerprint conduct of second finger left area, right area, upper-side area or underside area
Second original fingerprint image, wherein the specified region of the first finger and second finger can be identical or different, and the present invention does not limit
It is fixed.
If the specified region of the first finger is identical with the specified region of second finger, by taking left area as an example, then first obtain
The left area fingerprint of first finger is as the first original fingerprint image, then obtains the left area fingerprint of second finger as
Two original fingerprint images；
If the specified region of the first finger and the specified region of second finger be not identical, the first finger is with left area
Example, second finger then first obtain the left area fingerprint of the first finger as the first original fingerprint image by taking right area as an example,
The right area fingerprint of second finger is obtained again as the second original fingerprint image.
When need to acquire is the fingerprint of more than two fingers, and so on, details are not described herein.
Step S102 is combined to obtain verifying fingerprint image the collected original fingerprint image.
The original fingerprint image of collected each finger can be combined according to default combination to be tested
Fingerprint image is demonstrate,proved, which includes but are not limited to left and right combination or combination up and down；
If the combination is left and right combination, and has collected the right area fingerprint of the first finger in step s101
As the first original fingerprint image, and, the left area fingerprint of second finger can then be incited somebody to action as the second original fingerprint image
Second original fingerprint image is placed in the left side of the first original fingerprint image, to be combined into the verifying fingerprint image, such as Fig. 2 institute
Show；
If the combination is left and right combination, and has collected the left area fingerprint of the first finger in step s101
As the first original fingerprint image, and, the right area fingerprint of second finger can then be incited somebody to action as the second original fingerprint image
Second original fingerprint image is placed in the right side of the first original fingerprint image, to be combined into the verifying fingerprint image, such as Fig. 3 institute
Show；
If the combination is combination up and down, and has collected the upper-side area fingerprint of the first finger in step s101
As the first original fingerprint image, and, the underside area fingerprint of second finger can then be incited somebody to action as the second original fingerprint image
Second original fingerprint image is placed in the upside of the first original fingerprint image, to be combined into the verifying fingerprint image, such as Fig. 4 institute
Show；
If the combination is combination up and down, and has collected the underside area fingerprint of the first finger in step s101
As the first original fingerprint image, and, the upper-side area fingerprint of second finger can then be incited somebody to action as the second original fingerprint image
Second original fingerprint image is placed in the downside of the first original fingerprint image, to be combined into the verifying fingerprint image, such as Fig. 5 institute
Show；
It should be noted that the above several embodiments only represent several achievable modes of the invention, description
More specific and detailed, but it cannot be understood as limitations on the scope of the patent of the present invention.It should be pointed out that for this
For the those of ordinary skill in field, without departing from the inventive concept of the premise, various modifications and improvements can be made, this
Belong to protection scope of the present invention.
Further, the verifying fingerprint image of acquisition can also be handled.Specifically, finger-print region can be passed through
Detection, picture quality judgement, directional diagram and Frequency Estimation, image enhancement, Fingerprint Image Binarization and refinement etc. are to verifying fingerprint
Image is handled.It is pocessed by the verifying fingerprint image to Noise and pseudo-characteristic using certain algorithm, makes its line
Cable architecture is clear, and characteristic information is prominent, can improve the quality of fingerprint image, improve the accuracy of feature extraction.
Step S103 extracts the fingerprint feature information of the verifying fingerprint image.
The fingerprint feature information may include at least one in fingerprint pattern, fingerprint form and fingerprint feature point parameter
Kind.Preferably, fingerprint feature information may include fingerprint pattern and fingerprint form, alternatively, fingerprint pattern and fingerprint feature point ginseng
Number.
Fingerprint pattern is determined according to the trend and distribution situation of fingerprint ridge line, can be divided into ring-like (also known as bucket row), bow
Shape and spiral shape three categories；
Fingerprint form includes core point and triangulation point.Core point is the progressive center that reference point is located at fingerprint；Triangulation point mentions
Supplied fingerprint lines counting tracking beginning in place of, positioned at first bifurcation since core point perhaps breakpoint or
At two lines convergences, isolated point, turn back place, or is directed toward these singular points.
Fingerprint feature point parameter includes the direction of fingerprint feature point, curvature (speed that description ridge orientation changes), position
(position of node is described by x/y coordinate, can be absolute, is also possible to relative to triangulation point or characteristic point)；Its
In, fingerprint feature point is the minutia in fingerprint, generally includes streakline endpoint, bifurcation, isolated point, short bifurcated and ring etc.
Deng.Specifically, the fingerprint feature information of the fingerprint image of every part in the verifying fingerprint image can be extracted, for example, described
Fingerprint image is verified as shown in Fig. 2, extracting left part respectively when extracting the fingerprint feature information of the verifying fingerprint image
Fingerprint image fingerprint feature information and right part fingerprint image fingerprint feature information.
It should be noted that the fingerprint pattern, fingerprint form and fingerprint feature point parameter in the image that how to take the fingerprint are
The skilled addressee will appreciate that details are not described herein.
Further, described to extract the verifying fingerprint image if the verifying fingerprint image extracted is as shown in Fig. 2~Fig. 5
Fingerprint feature information be specifically as follows:
Detect the blank area in the verifying fingerprint image between the first original fingerprint image and the first original fingerprint image
The area and/or edge radian in domain, using the testing result as the fingerprint feature information.The verifying fingerprint image is to scheme
For 2, the area for detecting white space is specifically as follows: detect the total area of the verifying fingerprint image respectively, described first
Original fingerprint image area and the second original fingerprint image area, then total area is subtracted into the first original fingerprint image surface
Area of long-pending and the second original fingerprint image area the result as the white space；Detect the edge radian tool of white space
Body can be with are as follows: detects the bending journey of the patterned edge of the first original fingerprint image and the second original fingerprint image respectively
Degree, edge radian of the bending degree for two patterned edges that will test as the white space.
Step S104, judges whether the fingerprint feature information extracted matches with pre-stored fingerprint feature information,
And export judging result.
It can store the fingerprint feature information of at least one verifying fingerprint image in fingerprint base in advance, wherein described in acquisition
The fingerprint feature information of at least one verifying fingerprint image can refer to step S101~S103, and details are not described herein, then will obtain
Fingerprint feature information of at least one the verifying fingerprint image taken is stored in fingerprint base, when extracting the verifying fingerprint
When the fingerprint feature information of image, it can be determined that the fingerprint identifier of extraction is with pre-stored fingerprint feature information
No matching, and export the result of judgement.
It, can if the fingerprint feature information extracted includes fingerprint pattern and fingerprint form in a kind of optional embodiment
Fingerprint pattern in fingerprint pattern and fingerprint base to first pass through extraction carries out thick matching judgment, if existing and extraction in fingerprint base
The similarity of fingerprint pattern reach the target fingerprint image of the first preset threshold, then further judge the target fingerprint image
Fingerprint form and the fingerprint form similarity of extraction whether reach the second preset threshold, if the determination result is YES, then output
With the result passed through；Otherwise, the result that it fails to match is exported.
In another optional embodiment, if the fingerprint feature information extracted includes fingerprint pattern and fingerprint feature point
Parameter, can first pass through the fingerprint pattern of extraction and the fingerprint pattern in fingerprint base carries out thick matching judgment, if judgement knot
Fruit is the presence of the target fingerprint image for reaching the first preset threshold with the similarity of the fingerprint pattern of extraction in fingerprint base, then into one
Step judges whether the fingerprint feature point parameter of the target fingerprint image and the fingerprint feature point parameter similarity of extraction reach
To third predetermined threshold value, if the determination result is YES, then the result fitted through is exported；Otherwise, the result that it fails to match is exported.
In another optional embodiment, if the fingerprint feature information extracted includes verifying fingerprint image blank
The area features information and edge radian characteristic information in region can first judge the area that whether there is white space in fingerprint base
Target of the difference of the area features information of characteristic information and the fingerprint white space of extraction in the 4th preset threshold refers to
Print image, if it is determined that result be it is yes, then further judge the radian characteristic information of the white space of the target fingerprint image with
Whether the radian characteristic information similarity of the white space of the verifying fingerprint image extracted reaches the 5th preset threshold, if sentencing
Disconnected result be it is yes, then export the result fitted through；Otherwise, the result that it fails to match is exported.
Wherein, the first preset threshold, the second preset threshold, third predetermined threshold value, the 4th preset threshold and the 5th default threshold
Value can adjust according to the actual situation, and the present invention is without limitation.
It should be pointed out that several embodiments of the present invention are expressed for embodiment described above, describe more specific
With it is detailed, but it cannot be understood as limitations on the scope of the patent of the present invention.It should be pointed out that for the general of this field
For logical technical staff, without departing from the inventive concept of the premise, various modifications and improvements can be made, these are belonged to
Protection scope of the present invention.
In the embodiment shown in fig. 1, each described to obtain by the fingerprint in the specified region of at least two fingers of acquisition
The original fingerprint image of finger, and the collected original fingerprint image is combined to obtain verifying fingerprint image, then
Matching judgment is carried out to verifying fingerprint image and only acquires the part of each finger when acquiring the original fingerprint image
Fingerprint prevents the leakage of complete finger print information from the source of fingerprint collecting.
Referring to Fig. 6, Fig. 6 is the flow diagram of another fingerprint authentication method provided in an embodiment of the present invention.Such as Fig. 6
Shown, the method for the fingerprint authentication may include:
Step S601 acquires the fingerprint of the first finger left area using fingerprint recognition inductor to obtain the first original finger
Print image, and the fingerprint of second finger right area is acquired to obtain the second original fingerprint image.
Step S602, by the first original fingerprint image and the second original fingerprint image according to default combination
It is combined to obtain the verifying fingerprint image.
Step S603 detects the first original fingerprint image and second original fingerprint described in the verifying fingerprint image
The area and edge radian of white space between image, using the testing result as fingerprint feature information.
Further, fingerprint pattern, fingerprint form and the fingerprint feature point ginseng of the verifying fingerprint image can also be extracted
At least one of number ties the fingerprint pattern of extraction, fingerprint form and detection by taking take the fingerprint line shape and fingerprint form as an example
Fruit is as the fingerprint feature information.
Step S604, judges whether the fingerprint feature information extracted matches with pre-stored fingerprint feature information,
And export judging result.
Specifically, being deposited between the fingerprint image in left side and the fingerprint image on right side when detecting in the verifying fingerprint image
In white space, the area and edge radian of the white space are further detected, and judges the fingerprint feature information extracted
Whether matched with pre-stored fingerprint feature information, and exports the result of judgement.
Further specifically, can first judge that the area features information in fingerprint base with the presence or absence of white space is tested with described
Target fingerprint image of the difference of the area features information of fingerprint image white space in the 4th preset threshold is demonstrate,proved, if judgement knot
Fruit be it is yes, then further judge the white space of the target fingerprint image radian characteristic information whether with the verifying fingerprint
The similarity of the radian characteristic information of the white space of image reaches the 5th preset threshold, if the determination result is YES, then output
With the result passed through；Otherwise, the result that it fails to match is exported.
Further, if the fingerprint feature information further includes in fingerprint pattern, fingerprint form and fingerprint feature point parameter
At least one, by taking take the fingerprint line shape and fingerprint form as an example, can also further to verifying fingerprint image fingerprint pattern
Verifying matching is carried out with fingerprint form, if the fingerprint pattern of verifying fingerprint image and fingerprint form are verified, just output matching
By result.
In the embodiment shown in fig. 6, the fingerprint of the first finger left area is acquired to obtain by fingerprint recognition inductor
The first original fingerprint image, and acquire the fingerprint of second finger right area to obtain the second original fingerprint image, then by institute
The first original fingerprint image and the second original fingerprint image is stated to be combined according to default combination to obtain verifying fingerprint image
Picture only acquires the partial fingerprints of each finger, prevents from the source of fingerprint collecting when acquiring original fingerprint image
The leakage of complete finger print information.
Referring to Fig. 7, Fig. 7 is a kind of fingerprint verifying apparatus provided in an embodiment of the present invention；As shown in fig. 7, the fingerprint
Verifying device 7 at least may include finger print acquisition module 71, fingerprint image processing module 72, characteristic information extracting module 73, sentence
Disconnected module 74 and output module 75, in which:
Finger print acquisition module 71 specifies the fingerprint in region to obtain each finger for acquiring at least two fingers
Original fingerprint image；
Specifically, the finger print acquisition module 71 specifically can be used for:
Simultaneously or sequentially acquiring at least two finger specifies the fingerprint in region to obtain the original of each finger
Fingerprint image.
Fingerprint image processing module 72, for being combined to the collected original fingerprint image to obtain verifying and refer to
Print image；
In a kind of optional embodiment, the finger print acquisition module 71 is specifically used for:
The fingerprint for acquiring the first finger left area, right area, upper-side area or underside area is original to obtain first
Fingerprint image；And
The fingerprint for acquiring second finger left area, right area, upper-side area or underside area is original to obtain second
Fingerprint image；
The fingerprint image processing module 72 is specifically used for:
The first original fingerprint image and the second original fingerprint image are combined according to default combination
To obtain the verifying fingerprint image.
Characteristic information extracting module 73, for extracting the fingerprint feature information of the verifying fingerprint image；
Wherein, the fingerprint feature information may include in fingerprint pattern, fingerprint form and fingerprint feature point parameter extremely
Few one kind.
Further, if the verifying fingerprint image of the extraction of fingerprint image processing module 72 is as shown in Fig. 2~Fig. 5, the spy
Sign information extraction modules 73 specifically can be used for:
It detects described in the verifying fingerprint image between the first original fingerprint image and the second original fingerprint image
White space area and/or edge radian, using the testing result as the fingerprint feature information.
Judgment module 74, for judging the fingerprint feature information and pre-stored fingerprint characteristic of the verifying fingerprint image
Whether information matches；
Output module 75, for exporting judging result.
It will be appreciated that the function of each functional module of the fingerprint verifying apparatus 7 of the present embodiment can be according to above method reality
The method specific implementation in example is applied, the associated description with reference to Fig. 1 or Fig. 6 embodiment of the method can be specifically corresponded to, it is no longer superfluous herein
It states.
It should be noted that in the above-described embodiments, all emphasizing particularly on different fields to the description of each embodiment, in some embodiment
The part being not described in, reference can be made to the related descriptions of other embodiments.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules is not necessarily of the invention
Necessary to embodiment.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.
Module described in the embodiment of the present invention can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, specific integrated circuit) it realizes.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (8)
1. a kind of fingerprint authentication method characterized by comprising
It acquires at least two fingers and specifies the fingerprint in region to obtain the original fingerprint image of each finger；
The collected original fingerprint image is combined to obtain verifying fingerprint image；Collected original fingerprint image
Including the first original fingerprint image and the second original fingerprint image；
Detect the sky described in the verifying fingerprint image between the first original fingerprint image and the second original fingerprint image
The area and/or edge radian of white region, using the testing result as fingerprint feature information；
Judge whether the fingerprint feature information extracted matches with pre-stored fingerprint feature information, and exports judgement knot
Fruit.
2. the method as described in claim 1, which is characterized in that at least two fingers of the acquisition specify the fingerprint in region to obtain
The original fingerprint image of each finger includes:
It simultaneously or sequentially acquires at least two finger and specifies the fingerprint in region to obtain the original fingerprint of each finger
Image.
3. the method as described in claim 1, which is characterized in that at least two fingers of the acquisition specify the fingerprint in region to obtain
The original fingerprint image of each finger includes:
The fingerprint of the first finger left area, right area, upper-side area or underside area is acquired to obtain the first original fingerprint
Image；And
The fingerprint of second finger left area, right area, upper-side area or underside area is acquired to obtain the second original fingerprint
Image；
It is described the collected original fingerprint image to be combined to obtain verifying fingerprint image and include:
The first original fingerprint image and the second original fingerprint image are combined according to default combination to obtain
Obtain the verifying fingerprint image.
4. method as claimed in any one of claims 1-3, which is characterized in that the fingerprint feature information includes fingerprint line
At least one of shape, fingerprint form and fingerprint feature point parameter.
5. a kind of fingerprint verifying apparatus characterized by comprising
Finger print acquisition module specifies the fingerprint in region for acquiring at least two fingers to obtain the original finger of each finger
Print image；
Fingerprint image processing module, for being combined the collected original fingerprint image to obtain verifying fingerprint image
Picture；Collected original fingerprint image includes the first original fingerprint image and the second original fingerprint image；
Characteristic information extracting module, for detecting the first original fingerprint image and described second described in the verifying fingerprint image
The area and/or edge radian of white space between original fingerprint image, using the testing result as fingerprint feature information；
Judgment module, for judging whether the fingerprint feature information extracted matches with pre-stored fingerprint feature information；
Output module, for exporting judging result.
6. device as claimed in claim 5, which is characterized in that the finger print acquisition module is specifically used for:
It simultaneously or sequentially acquires at least two finger and specifies the fingerprint in region to obtain the original fingerprint of each finger
Image.
7. device as claimed in claim 5, which is characterized in that
The finger print acquisition module is specifically used for:
The fingerprint of the first finger left area, right area, upper-side area or underside area is acquired to obtain the first original fingerprint
Image；And
The fingerprint of second finger left area, right area, upper-side area or underside area is acquired to obtain the second original fingerprint
Image；
The fingerprint image processing module is specifically used for:
The first original fingerprint image and the second original fingerprint image are combined according to default combination to obtain
Obtain the verifying fingerprint image.
8. the device as described in any one of claim 5-7, which is characterized in that the fingerprint feature information includes fingerprint line
At least one of shape, fingerprint form and fingerprint feature point parameter.
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| CN201510490583.5A CN105550630B (en) | 2015-08-11 | 2015-08-11 | A kind of fingerprint authentication method and device |
| PCT/CN2015/091358 WO2017024667A1 (en) | 2015-08-11 | 2015-09-30 | Fingerprint verification method and apparatus |
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| CN201510490583.5A CN105550630B (en) | 2015-08-11 | 2015-08-11 | A kind of fingerprint authentication method and device |
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| CN107256380A (en) * | 2017-05-15 | 2017-10-17 | 广东欧珀移动通信有限公司 | Fingerprint register method and Related product |
| CN107133603A (en) * | 2017-05-24 | 2017-09-05 | 努比亚技术有限公司 | Method, mobile terminal and the computer-readable recording medium for preventing fingerprint from leaking |
| CN111222367B (en) * | 2018-11-26 | 2023-11-10 | 上海耕岩智能科技有限公司 | Fingerprint identification method and device, storage medium and terminal |
| CN115035640B (en) * | 2022-08-10 | 2022-12-06 | 湖南朗国视觉识别研究院有限公司 | Intelligent door lock unlocking method based on human body feature recognition and door lock system |
| CN116386091B (en) * | 2022-11-18 | 2024-04-02 | 荣耀终端有限公司 | Fingerprint identification method and device |
| CN116645366B (en) * | 2023-07-25 | 2023-10-03 | 山东千颐科技有限公司 | Visual identification and detection method for tail rope radian abnormality AI of vertical shaft hoist |
| CN117173818B (en) * | 2023-10-16 | 2024-06-18 | 康运达控股(山西)有限公司 | Intelligent lock using method based on fingerprint identification |
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| CN2578903Y (en) * | 2002-05-23 | 2003-10-08 | 钮旋 | Multiple-hand fingerprint and collector thereof |
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| CN102799982A (en) * | 2012-06-29 | 2012-11-28 | 深圳市亚略特生物识别科技有限公司 | Electronic transaction system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2578903Y (en) * | 2002-05-23 | 2003-10-08 | 钮旋 | Multiple-hand fingerprint and collector thereof |
| CN101165704A (en) * | 2006-10-20 | 2008-04-23 | 西安紫牛信息技术有限公司 | Composite fingerprint template matching method |
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