CN107004131A

CN107004131A - The method and device of fingerprint recognition

Info

Publication number: CN107004131A
Application number: CN201780000196.6A
Authority: CN
Inventors: 汤辉
Original assignee: Shenzhen Huiding Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2017-03-09
Filing date: 2017-03-09
Publication date: 2017-08-01
Also published as: WO2018161312A1

Abstract

A kind of method and apparatus of fingerprint recognition, it is possible to increase the security of fingerprint recognition.Methods described includes:N number of fisrt feature point of fingerprint to be measured is obtained, wherein, N is the integer more than or equal to 2；According to N number of fisrt feature point of the fingerprint to be measured, the corresponding finger orientation of the fingerprint to be measured is determined；According to the corresponding finger orientation of the fingerprint to be measured, the recognition result of the fingerprint to be measured is determined.

Description

The method and device of fingerprint recognition

Technical field

The present invention relates to the method and device of technical field of biometric identification, more particularly to fingerprint recognition.

Background technology

Fingerprint is as the unique feature of human body, with unchangeable property, uniqueness and convenience.Now, fingerprint is known Other technology is widely used in the equipment such as acquisition system, gate control system, intelligent telephone set.In existing fingerprint identification technology, Fingerprint recognition is carried out by the Feature Points Matching of fingerprint image, by obtaining fingerprint image and printing false fingerprint with special material The fingerprint identification function on multiple mobile phone type can be successfully cracked, the security of fingerprint recognition is relatively low.

The content of the invention

The application provides a kind of method and apparatus of fingerprint recognition, it is possible to increase the security of fingerprint recognition.

First aspect there is provided a kind of method of fingerprint recognition, including:N number of fisrt feature point of fingerprint to be measured is obtained, its In, N is the integer more than or equal to 2；According to N number of fisrt feature point of the fingerprint to be measured, the corresponding hand of the fingerprint to be measured is determined Finger direction；According to the corresponding finger orientation of the fingerprint to be measured, the recognition result of the fingerprint to be measured is determined.

In the first possible implementation of first aspect, this is according to the corresponding finger orientation of the fingerprint to be measured, really The recognition result of the fixed fingerprint to be measured, including：If the corresponding finger orientation of the fingerprint to be measured is matched with preset direction, it is determined that this is treated Survey fingerprint recognition success；If and/or the corresponding finger orientation of the fingerprint to be measured is mismatched with preset direction, determines the fingerprint to be measured Recognition failures.

Alternatively, if the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is less than or equal to first Threshold value, and/or the corresponding finger orientation of the fingerprint to be measured are consistent with preset direction, then can determine the corresponding hand of the fingerprint to be measured Finger direction is matched with the preset direction, and/or determines the fingerprint recognition success to be measured.

Alternatively, if the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is more than first threshold, And/or the corresponding finger orientation of the fingerprint to be measured and preset direction it is inconsistent, then can determine the corresponding finger of the fingerprint to be measured Direction is mismatched with the preset direction, and/or determines the fingerprint recognition failure to be measured.

Alternatively, it is upward, downward, leftward or rightward that direction here, which can unanimously refer to, but the embodiment of the present invention is not It is limited to this.

Alternatively, the corresponding finger orientation of the fingerprint to be measured includes：The corresponding finger pressing direction of the fingerprint to be measured and/or The corresponding finger glide direction of the fingerprint to be measured.

Alternatively, this determines the recognition result of the fingerprint to be measured according to the corresponding finger orientation of the fingerprint to be measured, including： If the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is less than or equal to first threshold, determine that this to be measured refers to Line is recognized successfully；If and/or the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is more than first threshold, really The fixed fingerprint recognition failure to be measured.

In the first possible implementation of first aspect, N number of fisrt feature point of acquisition fingerprint to be measured, bag Include：Characteristic point in multiple characteristic points of the fingerprint to be measured with the default Feature Points Matching in default set of characteristic points is defined as The fisrt feature point, wherein, the default set of characteristic points includes at least two default characteristic points；This is according to the N of the fingerprint to be measured Individual fisrt feature point, determines the corresponding finger orientation of the fingerprint to be measured, including：It is corresponding default according to the default set of characteristic points Each in direction presets the annexation between characteristic point, connects N number of fisrt feature point, obtains the corresponding hand of the fingerprint to be measured Refer to pressing direction.

, should in the basis in second of possible implementation of first aspect with reference to above-mentioned possible implementation Before the corresponding finger orientation of fingerprint to be measured, the recognition result for determining the fingerprint to be measured, this method also includes：Obtain at least two Reference fingerprint pattern；Determine the maximum angle between the corresponding finger pressing direction of at least two reference fingerprints pattern；The root According to the corresponding finger orientation of the fingerprint to be measured, the recognition result of the fingerprint to be measured is determined, including：If the maximum angle is less than second Threshold value, presses direction according to the corresponding finger of the fingerprint to be measured, determines the recognition result of the fingerprint to be measured.

In the third possible implementation of first aspect, N number of fisrt feature point of the acquisition fingerprint to be measured, bag Include：The corresponding at least two fingerprint pattern to be measured of the fingerprint to be measured is obtained, wherein, at least two fingerprint pattern to be measured is in hand The fingerprint pattern collected in the sliding process of finger；At least one pair of characteristic point that will be matched at least two fingerprint pattern to be measured It is defined as the fisrt feature point.

Alternatively, the characteristic point at least one pair of characteristic point of the matching can be randomly choosed from fingerprint pattern to be measured , or, the characteristic point at least one pair of characteristic point of the matching can be the characteristic point matched with default characteristic point.

With reference to above-mentioned possible implementation, in the 4th kind of possible implementation of first aspect, this is treated according to this N number of fisrt feature point of fingerprint is surveyed, the corresponding finger orientation of the fingerprint to be measured is determined, including：According at least two finger to be measured At least one pair of fisrt feature point matched in the acquisition time of line pattern and at least two fingerprint pattern to be measured, it is determined that this is treated Survey the corresponding finger glide direction of fingerprint.

With reference to above-mentioned possible implementation, in the 5th kind of possible implementation of first aspect, the fingerprint to be measured Corresponding finger glide direction is one of the following：Slip to the left, to the right slip, upward sliding and slide downward；The basis The corresponding finger orientation of the fingerprint to be measured, determines the recognition result of the fingerprint to be measured, including：If the corresponding finger of the fingerprint to be measured Glide direction and default glide direction are inconsistent, determine the fingerprint recognition failure to be measured.

, should in the basis in the 6th kind of possible implementation of first aspect with reference to above-mentioned possible implementation Before the corresponding finger orientation of fingerprint to be measured, the recognition result for determining the fingerprint to be measured, this method also includes：Determine the finger to be measured Whether the fingerprint pattern of line matches with preset fingerprint pattern；This determines that this is to be measured according to the corresponding finger orientation of the fingerprint to be measured The recognition result of fingerprint, including：If the fingerprint pattern of the fingerprint to be measured is matched with the preset fingerprint pattern, according to the fingerprint to be measured Corresponding finger orientation, determines the recognition result of the fingerprint to be measured.

With reference to above-mentioned possible implementation, in the 7th kind of possible implementation of first aspect, this method is also wrapped Include：If the fingerprint pattern of the fingerprint to be measured is mismatched with the preset fingerprint pattern, the fingerprint recognition failure to be measured is determined.

, should in the basis in the 8th kind of possible implementation of first aspect with reference to above-mentioned possible implementation Before the corresponding finger orientation of fingerprint to be measured, the recognition result for determining the fingerprint to be measured, this method also includes：Pass through user mutual Interface receives instruction, and the instruction is used to indicate whether opening direction identification function；This is according to the corresponding finger side of the fingerprint to be measured To, the recognition result of the fingerprint to be measured is determined, including：If the instruction indicates opening direction identification function, according to the fingerprint to be measured Corresponding finger orientation, determines the recognition result of the fingerprint to be measured.

The method of fingerprint recognition provided in an embodiment of the present invention, by least two fisrt feature for obtaining fingerprint to be measured Point, according to 1 fisrt feature points of the fingerprint to be measured, determines the corresponding finger orientation of the fingerprint to be measured, to be measured according to this The corresponding finger orientation of fingerprint, determines the recognition result of the fingerprint to be measured, it is possible to increase the security of fingerprint recognition..

Second aspect is there is provided a kind of device of fingerprint recognition, times for performing above-mentioned first aspect or first aspect Method in possible implementation of anticipating.

Specifically, the device is included in any possible implementation for performing above-mentioned first aspect or first aspect Method unit.

The third aspect there is provided the device of another fingerprint recognition, including：Memory and processor, the memory are used for Store instruction, the processor is used to performing the instruction of the memory storage, and when the computing device memory storage During instruction, the execution causes the method in any possible implementation of the computing device first aspect or first aspect.

Fourth aspect is there is provided a kind of computer-readable medium, for storing computer program, and the computer program includes The instruction of the method in any possible implementation for performing first aspect or first aspect.

Brief description of the drawings

Fig. 1 is the indicative flowchart of the method for fingerprint recognition provided in an embodiment of the present invention.

Fig. 2 is the schematic diagram that finger in the method for fingerprint recognition provided in an embodiment of the present invention presses direction.

Fig. 3 is the schematic diagram of the corresponding fingerprint pattern in finger pressing direction shown in Fig. 2.

Fig. 4 be fingerprint recognition provided in an embodiment of the present invention method in reference fingerprint pattern finger pressing direction between Angle schematic diagram.

Fig. 5 is the indicative flowchart of the method for another fingerprint recognition provided in an embodiment of the present invention.

Fig. 6 is the indicative flowchart of the method for another fingerprint recognition provided in an embodiment of the present invention.

Fig. 7 is the schematic block diagram of the device of fingerprint recognition provided in an embodiment of the present invention.

Fig. 8 is the schematic block diagram of the device of another fingerprint recognition provided in an embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described.

Fig. 1 shows the method 100 of fingerprint recognition provided in an embodiment of the present invention.This method 100 can be by fingerprint recognition Device perform.

S110, obtains 1 fisrt feature points of fingerprint to be measured.

Multiple characteristic points of the fingerprint to be measured can include at least two fisrt feature point, at least two fisrt feature The diverse location that point can correspond in a fingerprint pattern of fingerprint to be measured, may correspond to the different fingerprints of fingerprint to be measured Same position in pattern, wherein, the different fingerprint patterns can be in difference during finger is slided on fingerprint module What the moment collected, but not limited to this of the embodiment of the present invention.

S120, according to 1 fisrt feature points of the fingerprint to be measured, determines the corresponding finger orientation of the fingerprint to be measured.

Alternatively, the corresponding finger orientation of the fingerprint to be measured can include at least one of following：Finger presses direction With finger glide direction, but not limited to this of the embodiment of the present invention.

S130, according to the corresponding finger orientation of the fingerprint to be measured, determines the recognition result of the fingerprint to be measured.

Therefore, the method for fingerprint recognition provided in an embodiment of the present invention, by obtain fingerprint to be measured at least two first Characteristic point, according to 1 fisrt feature points of the fingerprint to be measured, determines the corresponding finger orientation of the fingerprint to be measured, according to this The corresponding finger orientation of fingerprint to be measured, determines the recognition result of the fingerprint to be measured, it is possible to increase the security of fingerprint recognition.

As an alternative embodiment, in the method 100, direction can be pressed according to the corresponding finger of the fingerprint to be measured, Determine the recognition result of the fingerprint to be measured.Now, it is alternatively possible to gather the fingerprint pattern of the fingerprint to be measured, and obtain this and refer to 1 fisrt feature points in line pattern.As an optional example, at least two fisrt feature point can be to be measured The characteristic point of special characteristic is met in multiple characteristic points of fingerprint., can be by the fingerprint to be measured as another optional example It is defined as in multiple characteristic points that fingerprint pattern includes with the characteristic point of the default Feature Points Matching in default set of characteristic points One characteristic point, wherein, the default set of characteristic points can include at least two default characteristic points.For example, the default feature point set The first default characteristic point and the second default characteristic point can be included by closing, now, it is alternatively possible to by the fingerprint image of the fingerprint to be measured Multiple characteristic points that sample includes are matched with the first default characteristic point and the second default characteristic point respectively, to determine to be somebody's turn to do Characteristic point in multiple characteristic points with the characteristic point of the first default Feature Points Matching and with the second default Feature Points Matching, and It is special by being defined as first with the characteristic point of the first default Feature Points Matching and with the characteristic point of the second default Feature Points Matching Levy a little, but not limited to this of the embodiment of the present invention.

In embodiments of the present invention, the direction that at least two fisrt feature point is sequentially connected and composed can be defined as this The corresponding finger pressing direction of fingerprint to be measured, wherein, alternatively, the direction that at least two fisrt feature point is sequentially connected and composed Can be specially by some fisrt feature point at least two fisrt feature point to the direction of another fisrt feature point, example Such as, also may be used by first fisrt feature point at least two fisrt feature point to the direction of last fisrt feature point To be the adjacent characteristic point of each two is sequentially connected and composed at least two fisrt feature point direction, or can also be The direction sequentially connected and composed by the characteristic point adjacent to each two at least two fisrt feature point carries out smooth etc. What reason was obtained, the embodiment of the present invention is not limited this.

Alternatively, the connection order of at least two fisrt feature point can be pre-set, can also according to this at least two The feature of individual fisrt feature point or corresponding position are determined.If at least two fisrt feature point is according to default feature point set Close what is determined, alternatively, the connection order of at least two fisrt feature point can also according to at least two fisrt feature The default characteristic point of Point matching determines that the embodiment of the present invention is not limited this.It is used as an optional example, the default characteristic point At least two default characteristic points in set can sequentially connect and compose default pressing direction, at this point it is possible to according to default with this The connection order of at least two default characteristic points on direction is pressed, connection and at least two default Feature Points Matching are at least Two fisrt feature points, obtain the corresponding finger pressing direction of the fingerprint to be measured.For example, pointing to second by the first default characteristic point The straight line of default characteristic point is default pressing direction, now, the corresponding finger pressing direction of the fingerprint to be measured can be by with this First presets the fisrt feature point of Feature Points Matching to the direction with the fisrt feature point of the second default Feature Points Matching, but this Inventive embodiments not limited to this.

Alternatively, can be by determining the corresponding finger pressing direction of fingerprint to be measured and default pressing side in S130 To whether matching, to determine the recognition result of the fingerprint to be measured, wherein, the default pressing direction can be that user pre-sets , instructed for example, the fingerprint identification device can receive second by User Interface, this second is instructed for indicating that this is pre- If direction is pressed, or, the fingerprint identification device can detect the gesture of user when presenting and setting interface, and according to detecting Gesture, determine the default pressing direction, etc..The preset direction can be that user selects from multiple optional directions in advance , or, finger pressing direction when the default pressing direction can also be user's typing fingerprint, now, alternatively, this is preset Pressing direction can be made up of, etc. at least two default characteristic points, and the embodiment of the present invention is not limited this.

Specifically, in S130, it may be determined that the corresponding finger pressing direction of the fingerprint to be measured and default pressing direction it Between angle, and according to the angle, determine the recognition result of the fingerprint to be measured.Wherein, alternatively, the finger presses direction and pre- If 0 can be more than or equal to and less than or equal to 180 degree by pressing the angle between direction, it is specifically as follows by the fingerprint to be measured Finger presses direction to the angle in the default pressing direction, or the finger by the default pressing direction to the fingerprint to be measured The angle in direction is pressed, the embodiment of the present invention is not limited this.

As an example, if the angle between the corresponding finger pressing direction of fingerprint to be measured and default pressing direction Less than or equal to first threshold, then the fingerprint recognition success to be measured can be determined.As another example, if the fingerprint to be measured Finger pressing direction and default pressing direction between angle be more than first threshold, then can determine that the fingerprint recognition to be measured is lost Lose, but not limited to this of the embodiment of the present invention.Alternatively, the first threshold can be default value, or can also be user's setting 's.Instructed for example, the fingerprint identification device can receive first by User Interface, this first instruct for indicate this One threshold value, correspondingly, the fingerprint identification device can determine the first threshold, but the embodiment of the present invention according to first instruction Not limited to this.

As another alternative embodiment, the fingerprint identification device can be according to the corresponding finger slip side of the fingerprint to be measured To determining the recognition result of the fingerprint to be measured.Now, alternatively, the fingerprint identification device can obtain many of the fingerprint to be measured Individual fingerprint pattern (fingerprint pattern hereinafter referred to as to be measured), wherein, the plurality of fingerprint pattern to be measured can correspond to different fingers Pressing position, is collected for example, the plurality of fingerprint pattern to be measured is finger on pressing module during slip, but this hair Bright embodiment not limited to this.The fingerprint identification device can obtain at least one pair of matching characteristic in the plurality of fingerprint pattern to be measured Point, and the characteristic point at least one pair of matching characteristic point is defined as fisrt feature point, wherein, each pair matching characteristic point can be with Include at least two characteristic points of the matching of different fingerprint patterns to be measured in the plurality of fingerprint pattern to be measured, for example, a pair of matchings Characteristic point can include the plurality of fingerprint pattern to be measured in the first fingerprint pattern to be measured some characteristic point and at least one second Characteristic point in each second fingerprint pattern to be measured of fingerprint pattern to be measured with this feature Point matching, but the embodiment of the present invention do not limit In this.Alternatively, the characteristic point at least one pair of matching characteristic point can be randomly selected from fingerprint pattern to be measured, or Characteristic point in person, at least one pair of matching characteristic point can be the characteristic point matched with default characteristic point, and the present invention is implemented Example not limited to this.

Alternatively, the fingerprint identification device can determine the fingerprint correspondence to be measured according at least two fisrt feature point Finger glide direction.As an example, the fingerprint identification device can be treated according to belonging at least two fisrt feature point The acquisition time of fingerprint pattern is surveyed, the corresponding finger glide direction of the fingerprint to be measured is determined.For example, at least two fisrt feature Point can include the first fingerprint pattern to be measured in the fingerprint patterns to be measured of characteristic point A and second in characteristic point a, and this first The acquisition time of fingerprint pattern to be measured is earlier than the acquisition time of the second fingerprint pattern to be measured, then the fingerprint identification device can be by The corresponding finger glide direction of the fingerprint to be measured is defined as by characteristic point A to characteristic point a direction, but the embodiment of the present invention is not limited In this.

Alternatively, in S130, the fingerprint identification device can determine the corresponding finger glide direction of the fingerprint to be measured with Whether default glide direction matches, if it does, then the fingerprint identification device can determine the fingerprint recognition success to be measured.It is optional Ground, if it does not match, the fingerprint identification device can determine the fingerprint recognition failure to be measured.Wherein, alternatively, the finger to be measured The finger glide direction and default glide direction of line can be respectively one of the following：Upward sliding, slide downward, slide to the left It is dynamic and slide to the right, alternatively, if the finger glide direction of the fingerprint to be measured is consistent with default glide direction, be for example to Right to slide, then the fingerprint identification device can determine the corresponding finger glide direction of fingerprint to be measured and the default glide direction Match somebody with somebody, the fingerprint recognition success to be measured.Alternatively, if the finger glide direction and default glide direction of the fingerprint to be measured differ Cause, it is to slide to the right for example to preset glide direction, and the corresponding finger glide direction of fingerprint to be measured is slide downward, then the fingerprint Identifying device can determine that the corresponding finger glide direction of fingerprint to be measured and the default glide direction are mismatched, the fingerprint to be measured Recognition failures.

As another optional example, if the fingerprint identification device determines the corresponding finger glide direction of the fingerprint to be measured Consistent with default glide direction, then the fingerprint identification device may further determine that the corresponding finger glide direction of the fingerprint to be measured With the angle between default glide direction, if the angle is less than or equal to the 3rd threshold value, the fingerprint identification device can be true The corresponding finger glide direction of the fixed fingerprint to be measured is matched with default glide direction, and the fingerprint recognition to be measured is successfully；If the angle Degree is more than the 3rd threshold value, then the fingerprint identification device can determine the corresponding finger glide direction of fingerprint to be measured and default cunning Dynamic direction is mismatched, the fingerprint recognition failure to be measured, but not limited to this of the embodiment of the present invention.Alternatively, the 3rd threshold value can be with It is more than or equal to or less than the first threshold, the embodiment of the present invention is not limited this.

As another alternative embodiment, in embodiments of the present invention, the fingerprint identification device can be according to the finger to be measured The fingerprint pattern of line and the corresponding finger orientation of the fingerprint to be measured, determine the fingerprint recognition result of the fingerprint to be measured.For example, such as Really the fingerprint pattern of the fingerprint to be measured is matched and the corresponding finger orientation of fingerprint to be measured and default side with typing fingerprint pattern To matching, then the fingerprint identification device can determine fingerprint recognition success to be measured.If the fingerprint pattern of the fingerprint to be measured with Typing fingerprint pattern is mismatched or the corresponding finger orientation of the fingerprint to be measured is mismatched with preset direction, then the fingerprint recognition is filled The fingerprint recognition failure to be measured, not limited to this of the embodiment of the present invention can be determined by putting.

Alternatively, the fingerprint identification device performs the fingerprint pattern of the determination fingerprint to be measured simultaneously or with any sequencing With typing fingerprint pattern whether match and determine the corresponding finger orientation of the fingerprint to be measured whether the stream matched with preset direction Journey.As an example, the fingerprint identification device can first determine the fingerprint to be measured fingerprint pattern whether with typing fingerprint image Sample is matched.Alternatively, if whether the fingerprint pattern of the fingerprint to be measured matches with typing fingerprint pattern, the fingerprint identification device It may further determine that whether the corresponding finger orientation of the fingerprint to be measured matches with preset direction, for example, determine the fingerprint pair to be measured Whether the finger pressing direction answered matches with default pressing direction, and/or determines the corresponding finger glide direction of the fingerprint to be measured Whether matched with default glide direction.Alternatively, if the fingerprint pattern of the fingerprint to be measured whether with typing fingerprint pattern not Match somebody with somebody, then the fingerprint identification device can determine fingerprint recognition to be measured failure, and without the judgement of follow-up finger orientation, from And recognition efficiency is improved, but not limited to this of the embodiment of the present invention.

In embodiments of the present invention, it is alternatively possible to whether be set by user according to the corresponding finger orientation of fingerprint to be measured Determine the recognition result of the fingerprint to be measured.As an alternative embodiment, the fingerprint identification device can be by user mutual circle Face receive the 3rd instruct, the 3rd instruction can serve to indicate that whether opening direction identification function, correspondingly, the fingerprint recognition dress Above-mentioned flow, but not limited to this of the embodiment of the present invention can be performed when the 3rd instruction indicates opening direction identification function by putting.

As another alternative embodiment, the fingerprint identification device (can be referred to as ginseng according to typing fingerprint pattern Examine fingerprint pattern), it is determined whether fingerprint recognition is carried out according to the corresponding finger orientation of fingerprint to be measured, that is, determines whether opening direction Identification function.Wherein, the typing fingerprint pattern can be used for fingerprint recognition.For example, the fingerprint identification device can be according to typing Fingerprint pattern, it is determined whether open pressing direction recognition function.Specifically, can be according to specific angle during user's typing fingerprint Degree pressing fingerprint module, such as shown in Fig. 2 correspondingly, the fingerprint identification device can determine that typing fingerprint pattern is corresponding Finger presses direction, and preserves the typing fingerprint pattern and its corresponding finger pressing direction.For example, as shown in figure 3, can be by The typing fingerprint pattern is preserved according to corresponding finger pressing direction.So, when user uses finger print identifying, fingerprint recognition dress Putting can press whether direction matches by determining that the corresponding finger of fingerprint pattern to be measured presses finger of the direction with pre-saving, To determine that the corresponding user fingerprints of the fingerprint pattern to be measured identify whether success, the authentication result of the fingerprint pattern to be measured is determined. For example, the user fingerprints pattern detected not only needs the typing fingerprint pattern with pre-saving to match, and the user refers to The corresponding finger pressing direction of line pattern needs finger pressing direction matching corresponding with the typing fingerprint pattern, the user fingerprints The corresponding user fingerprints of pattern could recognize successfully simultaneously success identity, but not limited to this of the embodiment of the present invention.

As another alternative embodiment, during typing fingerprint, the fingerprint identification device can gather same finger Multiple fingerprint patterns of line, hereinafter referred to as reference fingerprint pattern.The fingerprint identification device can determine the plurality of reference fingerprint figure Maximum angle between the corresponding finger pressing direction of sample, and according to the maximum angle, it is determined whether open pressing direction and know Other function.If for example, the maximum angle is more than Second Threshold, the fingerprint identification device can determine the plurality of reference fingerprint Pattern presses direction without specific finger, and the not specified specific finger of user presses direction, correspondingly, fingerprint recognition dress Pressing direction recognition function can be closed when carrying out fingerprint recognition by putting.If be somebody's turn to do for another example the maximum angle is less than or equal to Second Threshold, then the fingerprint identification device can determine that the plurality of reference fingerprint pattern has specific finger pressing direction, and And pressing direction recognition function, but not limited to this of the embodiment of the present invention are opened when carrying out fingerprint recognition.Alternatively, second threshold Value can be more than the first threshold, as an example, and the Second Threshold can be twice of the first threshold, but the present invention is real Apply a not limited to this.

In embodiments of the present invention, the fingerprint identification device can determine the plurality of reference fingerprint pattern in several ways Maximum angle between corresponding finger pressing direction.Alternatively, the fingerprint identification device can determine the plurality of reference fingerprint The set of characteristic points of each reference fingerprint pattern in pattern, wherein, the characteristic point in set of characteristic points can meet special characteristic Or correspondence ad-hoc location, for example, the characteristic point in set of characteristic points can be the feature of the approximate centerline of reference fingerprint pattern Point.Or, the fingerprint identification device can determine at least one of the first reference fingerprint pattern in the plurality of reference fingerprint pattern Individual characteristic point, at least one feature point group into the first reference fingerprint pattern reference point set, wherein, this is first with reference to referring to Line pattern can be the reference fingerprint pattern collected earliest, or be any reference fingerprint in the plurality of reference fingerprint pattern Pattern, at least one characteristic point can be the characteristic point in the first reference fingerprint pattern just to fingerprint identification device, for example Three or the characteristic point in nine o'clock direction, but not limited to this of the embodiment of the present invention.The fingerprint identification device can according to this The set of characteristic points of one reference fingerprint pattern, determines other corresponding set of characteristic points of reference fingerprint pattern, wherein, it is each other Characteristic point in the corresponding set of characteristic points of reference fingerprint pattern and the spy in the set of characteristic points of the first reference fingerprint pattern Levy Point matching, but not limited to this of the embodiment of the present invention.

It is alternatively possible to be sequentially connected the characteristic point in each set of characteristic points in that same order, it is consequently formed every The corresponding finger pressing direction of individual reference fingerprint pattern.For example as shown in figure 4, feature point set in the first reference fingerprint pattern P1 Close specially { characteristic point A, characteristic point B }, the set of characteristic points in the second reference fingerprint pattern P2 is specially { characteristic point a, feature Point b }, wherein, characteristic point A is matched with characteristic point a, and characteristic point B is matched with characteristic point b.Can be by by characteristic point A to characteristic point B Direction be defined as P1 corresponding fingers pressing direction d1, it is and corresponding by P2 is defined as by characteristic point a to characteristic point b direction The angle that finger presses between direction d2, P1 finger pressing directions corresponding with P2 is d1 and d2 angle, θ, but the present invention is real Apply a not limited to this.

So, the fingerprint identification device can be held to any two reference fingerprint pattern in the plurality of reference fingerprint pattern The above-mentioned flow of row, to determine that the corresponding finger of any two reference fingerprint pattern presses the angle in direction.Or, the fingerprint is known Other device can also determine above-mentioned first reference fingerprint pattern finger pressing direction corresponding with other each reference fingerprint patterns Between angle, but not limited to this of the embodiment of the present invention.Alternatively, the fingerprint identification device can be by multiple angles of determination Maximum angle be defined as maximum angle between the plurality of reference fingerprint pattern corresponding finger pressing direction, but the present invention is real Apply a not limited to this.

As another alternative embodiment, in user's typing fingerprint, can using slide finger by the way of typing, or Typing twice can be carried out, typing fingerprint pattern and glide direction, correspondingly, the fingerprint identification device can preserve user respectively The glide direction of typing, and fingerprint recognition, but not limited to this of the embodiment of the present invention are carried out according to the glide direction of preservation.It is optional Ground, when carrying out fingerprint recognition, the fingerprint identification device can gather a few frame fingerprint patterns, for determining that user's finger leaves finger Glide direction during line module, if the glide direction is matched with the glide direction of user's typing, it is determined that fingerprint recognition success, So as to improve the safety and reliability of fingerprint recognition.

Below in conjunction with specific example, the method that fingerprint recognition provided in an embodiment of the present invention is described in detail.

Fig. 5 shows the method 200 of fingerprint recognition provided in an embodiment of the present invention.In method 200, according to fingerprint to be measured Corresponding finger presses direction, determines the recognition result of the fingerprint to be measured.

S210, fingerprint identification device gathers the first fingerprint pattern of fingerprint to be measured.

S220, fingerprint identification device is pre-processed to the first fingerprint pattern, obtains the second fingerprint pattern.

Specifically, the fingerprint identification device can be pre-processed to the first fingerprint pattern, to remove first fingerprint Various noise jammings in pattern, recover the crestal line structure of fingerprint, obtain clearly fingerprint image, but the embodiment of the present invention is not limited In this.

S230, fingerprint identification device carries out feature point extraction to the second fingerprint pattern, obtains many of the second fingerprint pattern Individual second feature point.

Whether S240, fingerprint identification device carries out Feature Points Matching, to determine the plurality of second feature point with multiple second Default Feature Points Matching.

The plurality of second feature point be determined for the fingerprint to be measured whether with user's typing fingerprint matching, to recognize use Family identity.Alternatively, if it is determined that the plurality of second feature point presets Feature Points Matching with the plurality of second, then method 200 is jumped Go to S250.Mismatched alternatively, if it is determined that the plurality of second feature point presets characteristic point with the plurality of second, then the fingerprint Identifying device can determine the recognition failures to the fingerprint to be measured.

S250, fingerprint identification device carries out feature point extraction processing to the second fingerprint pattern, to obtain second fingerprint Multiple fisrt feature points in pattern, and according to the plurality of fisrt feature point, determine the corresponding finger pressing side of the fingerprint to be measured To.

Alternatively, the fingerprint identification device can will preset Feature Points Matching with first in the first default set of characteristic points Characteristic point be defined as fisrt feature point.The corresponding finger pressing direction of the fingerprint to be measured can be according to it is the plurality of first special The default closure of the multiple first default characteristic points of Point matching is levied, the direction obtained by the plurality of fisrt feature point is connected, But not limited to this of the embodiment of the present invention.

S260, fingerprint identification device determine the corresponding finger pressing direction of the fingerprint to be measured whether with default pressing direction Match somebody with somebody.

Alternatively, the default pressing direction can be by the multiple first default feature point groups into but the embodiment of the present invention do not limit In this.Alternatively, if angle between the corresponding finger pressing direction of the fingerprint to be measured and the default pressing direction be less than or Equal to first threshold, then it can determine that the corresponding finger pressing direction of the fingerprint to be measured is matched with the default pressing direction, but Inventive embodiments not limited to this.

, then can be with alternatively, if it is determined that the corresponding finger pressing direction of the fingerprint to be measured is matched with the default direction that presses Determine the fingerprint recognition success to be measured.If it does not match, the fingerprint recognition failure to be measured can be determined.

Alternatively, in embodiments of the present invention, finger can be carried out after typical second feature Point matching is carried out to press Direction matching is pressed, so as to improve the safety and reliability of fingerprint recognition, the fingerprint recognition time may accordingly increase by 2 to 6 millis Second.

Fig. 6 shows the method 300 of fingerprint recognition provided in an embodiment of the present invention.In method 300, according to fingerprint to be measured Corresponding finger glide direction, determines the recognition result of the fingerprint to be measured.

S310~S340 is similar with S210~S240, for sake of simplicity, repeating no more here.

Alternatively, if second feature Point matching success, method 300 jumps to S360.Alternatively, if it is determined that matching Unsuccessful, then the fingerprint identification device can determine the fingerprint recognition failure to be measured.

S350, fingerprint identification device gathers an at least frame the 3rd fingerprint pattern of the fingerprint to be measured.

Alternatively, S350 and S340 can simultaneously be performed or performed with any sequencing.Specifically, the fingerprint recognition Device can gather the first fingerprint pattern after the continuous acquisition at least fingerprint pattern of a frame the 3rd, then again to this second refer to Multiple second feature points of line pattern carry out Feature Points Matching, or, can also it is determined that the second fingerprint pattern multiple the After the success of two Feature Points Matchings, continue to gather at least fingerprint pattern of a frame the 3rd, the embodiment of the present invention does not limit this.

S360, fingerprint identification device determines that the corresponding finger of fingerprint to be measured is slided according at least fingerprint pattern of a frame the 3rd Direction.

Alternatively, the fingerprint identification device can be determined between the matching characteristic point at least in the fingerprint pattern of a frame the 3rd Relative movement direction, or characteristic point at least one the 3rd fingerprint pattern relative in the first fingerprint pattern therewith The moving direction of the characteristic point of matching, and the moving direction is defined as the corresponding finger glide direction of the fingerprint to be measured, but this Inventive embodiments not limited to this.

S370, fingerprint identification device determine the corresponding finger glide direction of the fingerprint to be measured whether with default glide direction Match somebody with somebody.

Alternatively, the default glide direction can user specify, such as user selects from multiple optional glide directions Select, or typing when user's typing fingerprint, but not limited to this of the embodiment of the present invention.

Alternatively, if the corresponding finger glide direction of the fingerprint to be measured is consistent with the default glide direction, for example, being Upwards, downwards, to the left or to the right, then the corresponding finger glide direction of fingerprint to be measured and the default glide direction can be determined Match somebody with somebody.

Alternatively, if the corresponding finger glide direction of the fingerprint to be measured is consistent with the default glide direction, and this is to be measured Angle between the corresponding finger glide direction of fingerprint and the default glide direction is less than or equal to first threshold, then can determine The corresponding finger glide direction of the fingerprint to be measured match with the default glide direction, wherein, it can be water that this, which presets glide direction, Square to or vertical direction, but not limited to this of the embodiment of the present invention.

Alternatively, can be true if the corresponding finger glide direction of the fingerprint to be measured is matched with the default glide direction Determine fingerprint recognition success.If it does not match, can determine that fingerprint recognition fails.

Alternatively, in embodiments of the present invention, finger slip side can be carried out after typical Feature Points Matching is carried out To matching, so as to improve the safety and reliability of fingerprint recognition.The fingerprint recognition time may accordingly increase by 2 × N milliseconds, its In, N at least fingerprint pattern of a frame the 3rd number.

It should be understood that the example shown in Fig. 2 to Fig. 6, which is to aid in those skilled in the art, more fully understands implementation of the present invention Example, and the scope of the embodiment of the present invention have to be limited.Those skilled in the art are according to given above-mentioned example, it is clear that Ke Yijin Row various modifications or change of equal value, such modification or change are also fallen into the range of the embodiment of the present invention.

It should also be understood that the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, the execution of each process Order should be determined with its function and internal logic, and any limit is constituted without tackling the implementation process of the embodiment of the present invention.

Above in association with Fig. 1 to Fig. 6, the method that fingerprint recognition provided in an embodiment of the present invention is described in detail, with reference to Fig. 7 and Fig. 8, introduces the device of fingerprint recognition provided in an embodiment of the present invention.

It should be understood that in embodiments of the present invention, the device of the fingerprint recognition can be portable or mobile computing device, example Such as smart mobile phone, tablet PC, wrist-worn device and other wearable or portable sets, or larger electronics is set It is standby, such as portable form or the personal computer of desktop form, ATM, can also be for business or government use it is various The various terminals of electronic system, database or information system, including automobile, ship, train, aircraft and other motorized traffic systems System, etc., the embodiment of the present invention is not limited this.

Fig. 7 shows the device 400 of fingerprint recognition provided in an embodiment of the present invention, including：

Acquiring unit 410, N number of fisrt feature point for obtaining fingerprint to be measured, wherein, N is whole more than or equal to 2 Number；

Recognition unit 420, for N number of fisrt feature point of the fingerprint to be measured obtained according to the acquiring unit 410, it is determined that The corresponding finger orientation of the fingerprint to be measured, and according to the corresponding finger orientation of the fingerprint to be measured, determine the knowledge of the fingerprint to be measured Other result.

Alternatively, the recognition unit 420 specifically for：

If the corresponding finger orientation of the fingerprint to be measured is matched with preset direction, fingerprint recognition success to be measured is determined；And/or

If the corresponding finger orientation of the fingerprint to be measured is mismatched with preset direction, fingerprint recognition failure to be measured is determined.

Alternatively, if the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is less than or equal to first Threshold value, and/or the corresponding finger orientation of the fingerprint to be measured are consistent with preset direction, then can determine the corresponding hand of the fingerprint to be measured Finger direction is matched with the preset direction, the fingerprint recognition success to be measured.

Alternatively, if the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is more than first threshold, And/or the corresponding finger orientation of the fingerprint to be measured and preset direction it is inconsistent, then can determine the corresponding finger of the fingerprint to be measured Direction is mismatched with the preset direction, the fingerprint recognition failure to be measured.

Alternatively, the recognition unit 420 specifically for：

If the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is less than or equal to first threshold, it is determined that The fingerprint recognition success to be measured；And/or

If the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is more than first threshold, determine that this is to be measured Fingerprint recognition fails.

As an alternative embodiment, the acquiring unit 410 specifically for：By in multiple characteristic points of the fingerprint to be measured with The characteristic point of default Feature Points Matching in default set of characteristic points is defined as the fisrt feature point, wherein, the default characteristic point Set includes at least two default characteristic points；

Correspondingly, the recognition unit 420 specifically for：According to each in the corresponding preset direction of default set of characteristic points Annexation between default characteristic point, connects N number of fisrt feature point, obtains the corresponding finger pressing side of the fingerprint to be measured To.

Alternatively, the acquiring unit 410 is additionally operable in the recognition unit 420 according to the corresponding finger side of the fingerprint to be measured To, before the recognition result for determining the fingerprint to be measured, at least two reference fingerprint patterns of acquisition；

The recognition unit 420 is additionally operable to determine at least two reference fingerprints pattern correspondence that the acquiring unit 410 is obtained Finger pressing direction between maximum angle；

Correspondingly, the recognition unit 420 determines the identification of the fingerprint to be measured according to the corresponding finger orientation of the fingerprint to be measured As a result, including：

If the recognition unit 420 determines that the maximum angle is less than Second Threshold, pressed according to the corresponding finger of the fingerprint to be measured Direction is pressed, the recognition result of the fingerprint to be measured is determined.

As another alternative embodiment, the acquiring unit 410 specifically for：

The corresponding at least two fingerprint pattern to be measured of the fingerprint to be measured is obtained, wherein, at least two fingerprint pattern to be measured It is the fingerprint pattern collected in the sliding process of finger；

At least one pair of characteristic point matched at least two fingerprint pattern to be measured is defined as the fisrt feature point.

Alternatively, the recognition unit 420 specifically for：According to the acquisition time of at least two fingerprint pattern to be measured and At least one pair of the fisrt feature point matched at least two fingerprint pattern to be measured, determines that the corresponding finger of the fingerprint to be measured is slided Direction.

Alternatively, the corresponding finger glide direction of the fingerprint to be measured is one of the following：Slide, slide to the right to the left, Upward sliding and slide downward.

Alternatively, the recognition unit 420 specifically for：If the corresponding finger glide direction of fingerprint to be measured and default slip Direction is inconsistent, determines the fingerprint recognition failure to be measured.

Alternatively, the recognition unit 420 specifically for：If the corresponding finger glide direction of fingerprint to be measured and default slip Direction is consistent, determines the fingerprint recognition success to be measured.

Alternatively, the recognition unit 420 is additionally operable to according to the corresponding finger orientation of the fingerprint to be measured, determining that this to be measured refers to Before the recognition result of line, determine whether the fingerprint pattern of the fingerprint to be measured matches with preset fingerprint pattern；

If the recognition unit 420 determines that the fingerprint pattern of the fingerprint to be measured is matched with the preset fingerprint pattern, treated according to this The corresponding finger orientation of fingerprint is surveyed, the recognition result of the fingerprint to be measured is determined.

Alternatively, the recognition unit 420 can be also used for：If the fingerprint pattern of the fingerprint to be measured and the preset fingerprint pattern Mismatch, determine the fingerprint recognition failure to be measured.

As another alternative embodiment, the device 400 can also include：Interactive unit, in the recognition unit 420 According to the corresponding finger orientation of the fingerprint to be measured, before the recognition result for determining the fingerprint to be measured, connect by User Interface Instruction is received, the instruction is used to indicate whether opening direction identification function；

Correspondingly, the recognition unit 420 specifically for：If the instruction that the interactive unit is received indicates opening direction identification Function, according to the corresponding finger orientation of the fingerprint to be measured, determines the recognition result of the fingerprint to be measured.

It should be understood that device 400 here is embodied in the form of functional unit.In an optional example, art technology Personnel are appreciated that device 400 can be specially the fingerprint identification device in above-described embodiment, and device 400 can be used for performing Each flow and/or step in above method embodiment, to avoid repeating, will not be repeated here.

It should also be understood that in embodiments of the present invention, term " unit " can refer to using peculiar integrated circuit It is (Application Specific Integrated Circuit, ASIC), electronic circuit, one or more soft for performing The processor (such as shared processor, proprietary processor or group processor) and memory, merging logic of part or firmware program The suitable assembly of function described by circuit and/or other supports.

Fig. 8 shows the device 500 of another fingerprint recognition provided in an embodiment of the present invention, including：Processor 510 and storage Device 520, wherein, the memory 520 is used for store instruction, and the processor 510 is used for the instruction for performing the memory 520 storage, Wherein, the execution to the instruction causes the processor 510 to perform following operation：N number of fisrt feature point of fingerprint to be measured is obtained, its In, N is the integer more than or equal to 2；According to N number of fisrt feature point of the fingerprint to be measured, the corresponding hand of the fingerprint to be measured is determined Finger direction, and according to the corresponding finger orientation of the fingerprint to be measured, determine the recognition result of the fingerprint to be measured.

In an optional example, implement it will be understood by those skilled in the art that device 500 can be specially the above method The device of fingerprint recognition in example, device 500 can be used for performing each flow and/or step in above method embodiment, To avoid repeating, it will not be repeated here.

It should be understood that in embodiments of the present invention, the processor can be CPU (Central Processing Unit, CPU), the processor can also be other general processors, digital up-link signal processor (DSP), application specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor Deng.

Memory can include read-only storage and random access memory, and provide instruction and data to processor.Deposit The a part of of reservoir can also include nonvolatile RAM.For example, memory can be with storage device type Information.The processor can be used for performing the instruction stored in memory, and during the computing device instruction, the processor Each step corresponding with terminal device in above method embodiment can be performed.

In implementation process, each step of the above method can by the integrated logic circuit of the hardware in processor or The instruction of software form is completed.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware processor Completion is performed, or completion is performed with the hardware in processor and software module combination.Software module can be located at random storage Device, flash memory, read-only storage, this area such as programmable read only memory or electrically erasable programmable memory, register into In ripe storage medium.The storage medium is located at the instruction in memory, computing device memory, is completed with reference to its hardware The step of stating method.To avoid repeating, it is not detailed herein.

It should be understood that the description to the embodiment of the present invention focuses on the difference emphasized between each embodiment above, not The same or similar part mentioned can be referred to mutually, for sake of simplicity, repeating no more here.

In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/ Or ", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example, A and/or B, can be with table Show：Individualism A, while there is A and B, these three situations of individualism B.In addition, character "/" herein, before and after typicallying represent Affiliated partner is a kind of relation of "or".

Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

, can be with several embodiments provided herein, it should be understood that disclosed systems, devices and methods Realize by another way.For example, device embodiment described above is only schematical, for example, the unit Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, such as multiple units or component Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or The coupling each other discussed or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces Close or communicate to connect, can be electrical, machinery or other forms.

The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs 's.

In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also That unit is individually physically present, can also two or more units it is integrated in a unit.

, can be wholly or partly by software, hardware, firmware or its is any it should also be understood that in the above-described embodiments Combine to realize.When implemented in software, it can realize in the form of a computer program product whole or in part.The meter Calculation machine program product includes one or more computer instructions.Load and perform on computers the computer program instructions When, produce whole or in part according to the flow or function described in the embodiment of the present invention.The computer can be general-purpose computations Machine, special-purpose computer, computer network or other programmable devices.The computer instruction can be stored in computer can Read in storage medium, or transmitted from a computer-readable recording medium to another computer-readable recording medium, for example, The computer instruction can pass through wired (such as coaxial electrical from web-site, computer, server or data center Cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave) mode to another web-site, calculate Machine, server or data center are transmitted.The computer-readable recording medium can be computer can access it is any Usable medium is either comprising data storage devices such as one or more usable mediums integrated server, data centers.It is described Usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disc Solid State Disk (SSD)).

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims

1. a kind of method of fingerprint recognition, it is characterised in that including:

N number of fisrt feature point of fingerprint to be measured is obtained, wherein, N is the integer more than or equal to 2；

According to N number of fisrt feature point of the fingerprint to be measured, the corresponding finger orientation of the fingerprint to be measured is determined；

According to the corresponding finger orientation of the fingerprint to be measured, the recognition result of the fingerprint to be measured is determined.

2. according to the method described in claim 1, it is characterised in that described according to the corresponding finger orientation of the fingerprint to be measured, The recognition result of the fingerprint to be measured is determined, including：

If the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is less than or equal to first threshold, institute is determined State fingerprint recognition success to be measured；And/or

If the angle between the corresponding finger orientation of the fingerprint to be measured and preset direction is more than first threshold, determine described to be measured Fingerprint recognition fails.

3. method according to claim 1 or 2, it is characterised in that the corresponding finger orientation of the fingerprint to be measured includes：Institute State the corresponding finger pressing direction of fingerprint to be measured.

4. method according to claim 3, it is characterised in that N number of fisrt feature point of the acquisition fingerprint to be measured, bag Include：

Characteristic point in multiple characteristic points of the fingerprint to be measured with the default Feature Points Matching in default set of characteristic points is true It is set to the fisrt feature point, wherein, the default set of characteristic points includes at least two default characteristic points；

N number of fisrt feature point according to the fingerprint to be measured, determines the corresponding finger orientation of the fingerprint to be measured, including：

According to the annexation between the default characteristic point of each in the corresponding preset direction of the default set of characteristic points, institute is connected N number of fisrt feature point is stated, the corresponding finger pressing direction of the fingerprint to be measured is obtained.

5. the method according to claim 3 or 4, it is characterised in that described according to the corresponding finger of the fingerprint to be measured Before direction, the recognition result for determining the fingerprint to be measured, methods described also includes：

Obtain at least two reference fingerprint patterns；

Determine the maximum angle between the corresponding finger pressing direction of at least two reference fingerprints pattern；

It is described that the recognition result of the fingerprint to be measured is determined according to the corresponding finger orientation of the fingerprint to be measured, including：

If the maximum angle is less than Second Threshold, direction is pressed according to the corresponding finger of the fingerprint to be measured, it is determined that described treat Survey the recognition result of fingerprint.

6. method according to any one of claim 1 to 5, it is characterised in that the corresponding finger side of the fingerprint to be measured To including：The corresponding finger glide direction of the fingerprint to be measured.

7. method according to claim 6, it is characterised in that N number of fisrt feature point of the acquisition fingerprint to be measured, Including：

At least one pair of characteristic point matched in described at least two fingerprint patterns to be measured is defined as the fisrt feature point.

8. method according to claim 7, it is characterised in that N number of fisrt feature point according to the fingerprint to be measured, The corresponding finger orientation of the fingerprint to be measured is determined, including：

Matched according in the acquisition time of described at least two fingerprint patterns to be measured and at least two fingerprint pattern to be measured At least one pair of fisrt feature point, determine the corresponding finger glide direction of the fingerprint to be measured.

9. the method according to any one of claim 6 to 8, it is characterised in that the corresponding finger of the fingerprint to be measured is slided Dynamic direction is one of the following：Slip to the left, to the right slip, upward sliding and slide downward；

If the corresponding finger glide direction of fingerprint to be measured and default glide direction are inconsistent, the fingerprint recognition to be measured is determined Failure.

10. method according to any one of claim 1 to 9, it is characterised in that described according to the fingerprint pair to be measured Before the finger orientation answered, the recognition result for determining the fingerprint to be measured, methods described also includes：

Determine whether the fingerprint pattern of the fingerprint to be measured matches with preset fingerprint pattern；

If the fingerprint pattern of the fingerprint to be measured is matched with the preset fingerprint pattern, according to the corresponding finger of the fingerprint to be measured Direction, determines the recognition result of the fingerprint to be measured.

11. method according to claim 10, it is characterised in that methods described also includes：

If the fingerprint pattern of the fingerprint to be measured is mismatched with the preset fingerprint pattern, determine that the fingerprint recognition to be measured is lost Lose.

12. the method according to any one of claim 1 to 11, it is characterised in that described according to the fingerprint to be measured Before corresponding finger orientation, the recognition result for determining the fingerprint to be measured, methods described also includes：

Received and instructed by User Interface, the instruction is used to indicate whether opening direction identification function；

If the instruction indicates opening direction identification function, according to the corresponding finger orientation of the fingerprint to be measured, it is determined that described treat Survey the recognition result of fingerprint.

13. a kind of device of fingerprint recognition, it is characterised in that including:

Acquiring unit, N number of fisrt feature point for obtaining fingerprint to be measured, wherein, N is the integer more than or equal to 2；

Recognition unit, for N number of fisrt feature point of the fingerprint to be measured obtained according to the acquiring unit, it is determined that described treat Survey the corresponding finger orientation of fingerprint, and according to the corresponding finger orientation of the fingerprint to be measured, determine the knowledge of the fingerprint to be measured Other result.

14. device according to claim 13, it is characterised in that the recognition unit specifically for：

15. the device according to claim 13 or 14, it is characterised in that the corresponding finger orientation bag of the fingerprint to be measured Include：The corresponding finger pressing direction of the fingerprint to be measured.

16. device according to claim 15, it is characterised in that the acquiring unit specifically for：

The recognition unit specifically for：

17. the device according to claim 15 or 16, it is characterised in that the acquiring unit is additionally operable to single in the identification Member before the recognition result for determining the fingerprint to be measured, obtains at least two according to the corresponding finger orientation of the fingerprint to be measured Reference fingerprint pattern；

The recognition unit is additionally operable to determine the corresponding hand of at least two reference fingerprints pattern that the acquiring unit is obtained Refer to the maximum angle between pressing direction；

The recognition unit determines the recognition result of the fingerprint to be measured according to the corresponding finger orientation of the fingerprint to be measured, wraps Include：

If the recognition unit determines that the maximum angle is less than Second Threshold, pressed according to the corresponding finger of the fingerprint to be measured Direction, determines the recognition result of the fingerprint to be measured.

18. the device according to any one of claim 13 to 17, it is characterised in that the corresponding finger of the fingerprint to be measured Direction includes：The corresponding finger glide direction of the fingerprint to be measured.

19. device according to claim 18, it is characterised in that the acquiring unit specifically for：

20. device according to claim 19, it is characterised in that the recognition unit specifically for：

21. the device according to any one of claim 18 to 20, it is characterised in that the corresponding finger of the fingerprint to be measured Glide direction is one of the following：Slip to the left, to the right slip, upward sliding and slide downward；

The recognition unit specifically for：If the corresponding finger glide direction of the fingerprint to be measured differs with default glide direction Cause, determine the fingerprint recognition failure to be measured.

22. the device according to any one of claim 13 to 21, it is characterised in that the recognition unit is additionally operable in root According to the corresponding finger orientation of the fingerprint to be measured, before the recognition result for determining the fingerprint to be measured, the fingerprint to be measured is determined Fingerprint pattern whether matched with preset fingerprint pattern；

If the recognition unit determines that the fingerprint pattern of the fingerprint to be measured is matched with the preset fingerprint pattern, treated according to described The corresponding finger orientation of fingerprint is surveyed, the recognition result of the fingerprint to be measured is determined.

23. device according to claim 22, it is characterised in that the recognition unit is additionally operable to：If the fingerprint to be measured Fingerprint pattern and the preset fingerprint pattern mismatch, determine the fingerprint recognition failure to be measured.

24. the device according to any one of claim 13 to 23, it is characterised in that described device also includes：

Interactive unit, for, according to the corresponding finger orientation of the fingerprint to be measured, determining described to be measured refer in the recognition unit Before the recognition result of line, received and instructed by User Interface, the instruction is used to indicate whether that opening direction recognizes work( Energy；

The recognition unit specifically for：

If instruction that the interactive unit is received indicates opening direction identification function, according to the corresponding finger of the fingerprint to be measured Direction, determines the recognition result of the fingerprint to be measured.