CN107341437A - The method of fingerprint acquisition apparatus and sensing fingerprint - Google Patents

The method of fingerprint acquisition apparatus and sensing fingerprint Download PDF

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Publication number
CN107341437A
CN107341437A CN201611101598.9A CN201611101598A CN107341437A CN 107341437 A CN107341437 A CN 107341437A CN 201611101598 A CN201611101598 A CN 201611101598A CN 107341437 A CN107341437 A CN 107341437A
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China
Prior art keywords
fingerprint image
fingerprint
partial
partial fingerprint
described
Prior art date
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CN201611101598.9A
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Chinese (zh)
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CN107341437B (en
Inventor
钟兴龙
施定腾
许昱超
徐旺生
陈信国
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联咏科技股份有限公司
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Priority to US201662330867P priority Critical
Priority to US62/330,867 priority
Priority to US15/255,158 priority patent/US9977946B2/en
Priority to US15/255,158 priority
Application filed by 联咏科技股份有限公司 filed Critical 联咏科技股份有限公司
Publication of CN107341437A publication Critical patent/CN107341437A/en
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Publication of CN107341437B publication Critical patent/CN107341437B/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00006Acquiring or recognising fingerprints or palmprints
    • G06K9/00013Image acquisition

Abstract

The method of fingerprint acquisition apparatus and sensing fingerprint.The present invention provides a kind of fingerprint acquisition apparatus including fingerprint sensor and processor circuit.Fingerprint sensor is used to the multiple partial fingerprint images to take the fingerprint.The multiple part includes an at least First partial fingerprint image and at least one second partial fingerprint image.Processor circuit is electrically connected to fingerprint sensor.Processor circuit recognizes fingerprint to an at least First partial fingerprint image according in multiple partial fingerprint images.Partial fingerprint image forms an overall fingerprint image of above-mentioned fingerprint.The fingerprint acquisition apparatus of the present invention and the number for for sensing the method for fingerprint good user's experience and lowering being provided operation being touched during fingerprint register.

Description

The method of fingerprint acquisition apparatus and sensing fingerprint

Technical field

The present invention relates to it is a kind of pass sensing device further and sense object method, and more particularly to a kind of fingerprint acquisition apparatus and The method for sensing fingerprint.

Background technology

In general technology, when user wants the finger using fingerprint acquisition apparatus identification user, user can be with Registration process is performed to register the fingerprint of finger using fingerprint acquisition apparatus so that the fingerprint image of finger is stored in fingerprint In sensing device further.After registration process is terminated, fingerprint acquisition apparatus can recognize user using stored fingerprint image Fingerprint.

Because the size of the fingerprint sensor of fingerprint acquisition apparatus may be less than complete fingerprint, user need to may make Repeatedly touching operation is performed with finger so that fingerprint acquisition apparatus obtains enough fingerprint images to recognize the fingerprint of user. However, in the related art, fingerprint acquisition apparatus simultaneously can not clearly illustrate the fingerprint image being extracted or register During the information of fingerprint image do not extracted successfully or position.In such a case, user can not clearly learn How to go to move finger, fingerprint acquisition apparatus could be caused to be extracted in the fingerprint image being not extracted by touching operation.Therefore, make User may perform touching operation many times before registration process is terminated.

Therefore, how good user's experience and satisfied sensing quality are provided and user is without carrying out too A kind of fingerprint acquisition apparatus of multiple touching operation is one of most important subject under discussion in the related art.

The content of the invention

As it was previously stated, method of the present invention for fingerprint acquisition apparatus and sensing fingerprint, and good make can be provided The number of operation is touched in user's experience and reduction during fingerprint register.

One embodiment of the invention provides the fingerprint acquisition apparatus including fingerprint sensor and processor circuit.Fingerprint Sensor is to multiple partial fingerprint images for taking the fingerprint.The multiple partial fingerprint image refers to including an at least First partial Print image and at least one second partial fingerprint image.Processor circuit to according to the multiple partial fingerprint image extremely A few First partial fingerprint image recognizes the fingerprint.The multiple partial fingerprint image forms the overall fingerprint image of the fingerprint Picture.

In one embodiment of this invention, above-mentioned fingerprint acquisition apparatus includes prompting equipment.Equipment is prompted to be electrically connected with To processor circuit.Equipment is prompted to export the first cue to user.First cue is pointed out positioned at described whole At least first position of a First partial fingerprint image and at least one second partial fingerprint image described in body fingerprint image The second place.

In one embodiment of the invention, the prompting equipment output includes the second cue of directional information.Believe in direction Breath reminds the user of the fingerprint according to the finger of second cue movement fingerprint fingerprint sensor to be carried Take at least one second partial fingerprint image.

In one embodiment of this invention, first cue and second cue are from screen prompt, sound At least one of sound prompting, vibration prompt are chosen.

In one embodiment of this invention, at least one second local fingerprint according to second cue extraction After the operation of image, at least one the 3rd local fingerprint figure of at least one second partial fingerprint image described in processor circuit judgement Seem no clear.If at least one the 3rd partial fingerprint image is clearly, at least 1 the 3rd innings described in processor circuit addition Portion's fingerprint image at least First partial fingerprint image described in.

In one embodiment of this invention, the fingerprint acquisition apparatus includes storage device.The storage device electrically connects It is connected to processor circuit.Whether the number of an at least First partial fingerprint image is more than threshold value described in processor circuit judgement.If If the number of an at least First partial fingerprint image is more than the threshold value, processor circuit terminates described in extraction at least An one second partial fingerprint image and at least First partial fingerprint image described in storing is to the storage device.

In one embodiment of this invention, at least one second local fingerprint according to second cue extraction After the operation of image, at least one the 3rd local fingerprint figure of at least one second partial fingerprint image described in processor circuit judgement Seem no clear.If at least one the 3rd partial fingerprint image is unsharp, the processor circuit control prompting is set The 3rd cue of standby output is caused at least one described in the fingerprint sensor extraction with reminding user to press finger again Second partial fingerprint image.

In one embodiment of this invention, the processor circuit calculate each at least First partial fingerprint image and The definition of at least one second partial fingerprint image.

In one embodiment of this invention, the fingerprint acquisition apparatus includes prompting equipment.Prompting equipment is electrically connected to Processor circuit.Prompting equipment locally refers to export each at least First partial fingerprint image and described at least one second The definition of print image.

In one embodiment of this invention, wherein the number of pixels of the overall fingerprint image is more than the fingerprint sensor Number of pixels.

One embodiment of the invention provides a kind of method for sensing fingerprint.The method is applied to fingerprint acquisition apparatus.This side Method includes:The multiple partial fingerprint images to take the fingerprint, wherein the multiple partial fingerprint image includes an at least First partial Fingerprint image and at least one second partial fingerprint image;And at least one first according to the multiple partial fingerprint image Partial fingerprint image recognizes the fingerprint, wherein the partial fingerprint image forms the overall fingerprint image of the fingerprint.

In one embodiment of this invention, the method for the sensing fingerprint also includes:The first cue is exported to use Person.First cue points out first positioned at an at least First partial fingerprint image described in the overall fingerprint image Position and the second place of at least one second partial fingerprint image.

In one embodiment of this invention, the method for the sensing fingerprint also includes:Output includes the second of directional information Cue.The directional information reminds the user of the fingerprint to move the hand of the fingerprint according to second cue Instigate to obtain at least one second partial fingerprint image described in fingerprint acquisition apparatus extraction.

In one embodiment of this invention, first cue and second cue are from screen prompt, sound At least one of sound prompting and vibration prompt are chosen.

In one embodiment of this invention, at least one second local fingerprint according to second cue extraction After the step of image, methods described also includes:At least the one the 3rd of at least one second partial fingerprint image is local described in judging Whether fingerprint image is clear;And if at least one the 3rd partial fingerprint image be clearly, add described at least 1 the Three partial fingerprint images at least First partial fingerprint image described in.

In one embodiment of this invention, methods described also includes:An at least First partial fingerprint image described in judging Whether number is more than threshold value;And if the number of an at least First partial fingerprint image is more than the threshold value, terminates to carry An at least First partial fingerprint image described at least one second partial fingerprint image and storage is taken to storage device.

In one embodiment of this invention, wherein at least one second part according to second cue extraction After the step of fingerprint image, methods described also includes:At least the one the 3rd of at least one second partial fingerprint image described in judging Whether partial fingerprint image is clear;And if at least one the 3rd partial fingerprint image is unsharp, output the 3rd carries Show signal to remind the user to press the finger again so that described in the fingerprint sensor extraction of fingerprint acquisition apparatus At least one second partial fingerprint image.

In one embodiment of this invention, the method for above-mentioned sensing fingerprint also includes:Calculate each described at least one first The definition of partial fingerprint image and at least one second partial fingerprint image.

In one embodiment of this invention, it is described also to include:Export each at least a First partial fingerprint image and the institute State the definition of at least one second partial fingerprint image.

In one embodiment of this invention, the number of pixels of the overall fingerprint image is more than the fingerprint acquisition apparatus The number of pixels of fingerprint sensor.

Based on above-mentioned, in the exemplary embodiment of the present invention, fingerprint acquisition apparatus and sense the method for fingerprint and provide one The number of operation is touched in individual good user's experience and reduction during fingerprint register.

For features described above of the invention and advantage can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make Carefully it is described as follows.

Brief description of the drawings

Including accompanying drawing to further understand the present invention, and accompanying drawing is incorporated in this specification and forms one of this specification Point.Embodiments of the invention are illustrated, and are used for the principle for explaining the present invention together with the description.

Fig. 1 shows the schematic diagram of the fingerprint acquisition apparatus according to embodiments of the present invention touched by user.

Fig. 2 shows the schematic block diagram of fingerprint acquisition apparatus illustrated in fig. 1 according to embodiments of the present invention.

Fig. 3 shows the schematic diagram of multiple partial fingerprint images of finger according to embodiments of the present invention.

Fig. 4 A show the first original fingerprint image that identification according to embodiments of the present invention intercepts by fingerprint acquisition apparatus Schematic diagram.

Fig. 4 B show the second original fingerprint image that identification according to embodiments of the present invention intercepts by fingerprint acquisition apparatus Schematic diagram.

Fig. 5 shows the signal according to embodiments of the present invention that the fingerprint image that operation is spliced afterwards is repeatedly touched in execution Figure.

Fig. 6 A show the schematic diagram of the cue of output first according to embodiments of the present invention.

Fig. 6 B show the schematic diagram of the cue of output first according to embodiments of the present invention.

Fig. 6 C show the schematic diagram of the cue of output first according to embodiments of the present invention.

Fig. 7 is the flow chart of depicted the step of being used to sense the method for fingerprint according to embodiments of the present invention.

Fig. 8 is flow chart the step of being used to sense the method for fingerprint according to depicted in another embodiment of the present invention.

Drawing reference numeral explanation

100:User

200:Fingerprint acquisition apparatus

210:Fingerprint sensor

220:Storage device

230:Prompt equipment

240:Processor circuit

300:Overall fingerprint image

400:First original fingerprint image

400:Second original fingerprint image

40、42:Direction

406、408:The field of direction

500:The image being spliced

60:First color

62:Second color

S701、S703:Step

S801、S803、S805、S807、S809、S811、S813、S815、S817、S819、S821:Step

Embodiment

With detailed reference to the one exemplary embodiment of the present invention, the example of one exemplary embodiment is illustrated in accompanying drawing.Separately Outside, all possible parts, component/same or like portion of component/symbology of identical label is used in schema and embodiment Point.

Fig. 1 shows the schematic diagram of the fingerprint acquisition apparatus according to embodiments of the present invention touched by user.Fig. 2 shows root According to the schematic block diagram of the fingerprint acquisition apparatus illustrated in fig. 1 of the embodiment of the present invention.With reference to figure 1 and Fig. 2, the embodiment of the present invention Electronic equipment include as Figure 2 illustrates sensing the fingerprint acquisition apparatus 200 of the fingerprint of user 100.Electronic equipment can Be intelligent mobile phone, flat board mobile phone (phablet), tablet PC (tablet), smart watch (smartwatch) or It is wisdom bracelet (smart band).However, the present invention is not intended to limit the type of electronic equipment.

In the present embodiment, fingerprint acquisition apparatus 200 includes fingerprint sensor 210, storage device 220, prompting equipment 230 And processor circuit 240.Fingerprint sensor 210 to the image that senses or take the fingerprint, and may include image sampling circuit and Sensing circuit.In embodiments of the present invention, sensing circuit includes, for example, ccd image sensor (CCD Image sensor) or CMOS (CMOS) imaging sensor or other analogs, it is not by this Invention concrete restriction.In the present embodiment, image sampling circuit can be realized using the image sampling circuit in correlation technique, It is not by concrete restriction of the present invention.Therefore, with reference to the general knowledge in correlation technique, image sampling circuit and sensing circuit can be obtained Internal circuit configuration and enough teachings of implementation, suggestion and implementation explanation, hereinafter no longer to it Repeated.

In the present embodiment, storage device 220 is couple to processor circuit 240.Storage device 220 can be static random Access memory (SRAM), dynamic random access memory (DRAM), hard disk, flash memory or it is any can to store electric signal or The internal memory or storage device of data.

In the present embodiment, prompting equipment 230 is couple to processor circuit 240.Prompting equipment 230 can be screen, raise Sound device or vibratory equipment.Screen can be the display list that display function is provided within the viewing area of fingerprint acquisition apparatus 200 Member.Display unit can be (but being not limited to) liquid crystal display (LCD), light emitting diode (LED), field-emitter display (FED) etc..Loudspeaker can be the equipment for exporting sound.Vibratory equipment can be can be to fingerprint acquisition apparatus 200 The equipment for producing vibration.

In one embodiment of the invention, processor circuit 240 includes, for example, CPU (CPU), micro- place Manage device, digital signal processor (DSP), programmable controller, programmable logic device (PLD) or other similar equipment or on The combination of equipment is stated, it is not by concrete restriction of the present invention.Furthermore in one embodiment, the storage device 220 in Fig. 2 may be used also To store multiple program codes.These program codes can be performed by processor circuit 240 to be used to sense with the execution present invention The method of fingerprint.Or in one embodiment, the method for being used to sense fingerprint of the invention can be come by one or more circuits Realize.Whether the method that the present invention does not limit for sensing fingerprint is realized by the mode of software or hardware.

In the present embodiment, when user 100 wants to go to recognize the finger of user 100 using fingerprint acquisition apparatus 200 (it is, for example,:Thumb), user 100 can perform registration process to register finger using fingerprint acquisition apparatus 200 first Fingerprint so that the fingerprint image of finger is stored to fingerprint acquisition apparatus 200.Hereafter, fingerprint acquisition apparatus 200 can use Stored fingerprint image recognizes the finger of user 100.

Specifically, after user 100 performs registration process, the prompting equipment 230 of fingerprint acquisition apparatus 200 can be with User is notified to use the finger to be registered touching fingerprint acquisition apparatus 200.In user 100 with finger touching fingerprint sensing dress After putting 200, multiple partial fingerprint images that fingerprint sensor 210 takes the fingerprint.Multiple partial fingerprint images include at least one First partial fingerprint image and at least one second partial fingerprint image.

For example, Fig. 3 shows the schematic diagram of multiple partial fingerprint images of finger according to embodiments of the present invention.With reference to Fig. 3, it is assumed that the overall fingerprint image 300 of finger can be divided into multiple partial fingerprint images 0~14.Overall fingerprint image 300 represent the complete fingerprint image of finger.Because the size of fingerprint sensor 210 is less than overall fingerprint image 300, fingerprint passes Sensor 210 can not obtain all partial fingerprint images 0~14 after touching operation only once.In other words, because It is more than the number of pixels of fingerprint sensor for the number of pixels of overall fingerprint image 300, fingerprint sensor 210 is in touching once A part for partial fingerprint image 0~14 may only be extracted after operation.Therefore, user 100 can perform multiple touching Operate the different piece for the partial fingerprint image for alloing fingerprint acquisition apparatus 200 to extract finger.

In the present embodiment, operated when user 100 performs the first touching with finger to touch fingerprint acquisition apparatus 200, Fingerprint sensor 210 extracts the first original fingerprint image of finger.Processor circuit 240 more recognizes the first original fingerprint image position In which of partial fingerprint image 0~14 partial fingerprint image.For example, Fig. 4 A are shown according to embodiments of the present invention The schematic diagram for the first original fingerprint image that identification intercepts by fingerprint acquisition apparatus.It is as described above performing with reference to figure 4A After first touching operation, fingerprint acquisition apparatus 200 can obtain the first original fingerprint image 400 of finger.In the present embodiment In, the first original fingerprint image 400 represents the fingerprint of finger upper left.After the first original fingerprint image 400 is extracted, place Reason device circuit 240 can produce the field of direction 406 of the first original fingerprint image 400.

Specifically, processor circuit 240 can analyze the feature of the first original fingerprint image 400 to obtain the field of direction 406.The feature of fingerprint image 400 includes line, profile or the texture of fingerprint image 400, and it is not by concrete restriction of the present invention.Place Reason device circuit 240 can analyze the feature of the first original fingerprint image 400 to obtain including corresponding to the first original fingerprint image The field of direction 406 of the multiple directions 40 of 400 feature.It is, however, to be noted that produce the method in the direction 40 of the field of direction 406 It can obtain by reference to the usual knowledge of image procossing association area, just repeat no more here.In addition, side in Figure 4 A Multiple directions 40 into field 406 are only with represented by 3 directions.However, the present invention is not intended to be limited in the side in the field of direction To quantity.

Then, processor circuit 240 can recognize the first original fingerprint image 400 according to the slope or angle in direction 40 and refer to The upper left of line.In an embodiment of the present invention, it is positioned at whole that processor circuit 240, which recognizes the first original fingerprint image 400, Partial fingerprint image 0 and partial fingerprint image 3 in body fingerprint image 300.Processor circuit 240 can also calculate overall fingerprint The definition of each partial fingerprint image among partial fingerprint image 0~14 in image 300.

It is specifically intended that the first original fingerprint image 400 is located at information and the first original finger in partial fingerprint image 0 The information that print image 400 is located in partial fingerprint image 3 may be different.In one embodiment, definition can be by three Threshold value calculates.If correspond to the number of the multiple directions 40 of the first original fingerprint image 400 positioned at a partial fingerprint image Amount is higher than first threshold, and the definition of this partial fingerprint image is set to " 100 ".If correspond to positioned at a local fingerprint figure The quantity of the multiple directions 40 of first original fingerprint image 400 of picture is higher than Second Threshold and is less than first threshold, this part The definition of fingerprint image is set to " 66 ".If correspond to the first original fingerprint image positioned at a partial fingerprint image The quantity of 400 multiple directions 40 is higher than the 3rd threshold value and is less than Second Threshold, and the definition of this partial fingerprint image is set It is set to " 33 ".If correspond to the quantity of the multiple directions 40 of the first original fingerprint image 400 positioned at a partial fingerprint image Less than the 3rd threshold value, the definition of this partial fingerprint image is set to " 0 ".For especially, definition is set as the office of " 100 " Portion's fingerprint image further can be defined as " clear " by processor circuit 240.Definition is set as " 66 ", " 33 " or " 0 " Partial fingerprint image further can be defined as " unintelligible " by processor circuit 240.

In this example, it is assumed that correspond to multiple sides of the first original fingerprint image 400 positioned at partial fingerprint image 3 It is higher than first threshold to 40 quantity.Therefore, the definition of partial fingerprint image 3 is set to " 100 ".In addition, correspond in place In the first original fingerprint image 400 of partial fingerprint image 0 multiple directions 40 quantity higher than the 3rd threshold value and less than the Two threshold values.Therefore, the definition of local fingerprint 0 is set to " 33 ".In addition, do not covered by the first original fingerprint image 400 each The definition of the partial fingerprint image of lid is set as " 0 ".In other words, in the present embodiment, partial fingerprint image 3 is recognized as " clear ", and other partial fingerprint images are all recognized as " unintelligible ".For especially, it is noted that be recognized as " clear It is clear " partial fingerprint image be also referred to as " First partial fingerprint image " simultaneously, and be recognized as the local fingerprint of " unintelligible " Image is also referred to as " the second partial fingerprint image " simultaneously.

Each an at least First partial fingerprint image and at least one second partial fingerprint image are calculated in processor circuit 240 Definition after, two positions can be used to represent each definition and further with two positions in processor circuit 240 Form stores each definition to storage device 220.Two positions include first and second.Table 1 is refer to, if locally referring to The definition of print image is set as " 33 ", and first meeting of definition is set as " 0 " and the second of definition can be set as “0”.If the definition of partial fingerprint image is set as " 100 ", first meeting of definition is set as " 0 " and definition Second can be set as " 1 ".If the definition of partial fingerprint image is set as " 0 ", first meeting of definition is set as " 1 " And the second of definition can be set as " 0 ".If the definition of partial fingerprint image is set as " 66 ", the first of definition Position can be set as " 1 " and the second of definition can be set as " 1 ".However, the present invention, which is not intended to limitation, represents definition Position form and digit.

Second is set to " 0 " Second is set to " 1 " First is set to " 0 " 33 100 First is set to " 1 " 0 66

Table 1

In one embodiment, each First partial fingerprint image in processor 240 calculates overall fingerprint image and After the definition of second partial fingerprint image, equipment 230 is prompted to export each First partial fingerprint image and second game The definition of portion's fingerprint image.Definition can be in the form of percentage (be, for example, " 0% ", " 33% ", " 66% " or " 100% ") by shown by the display unit of fingerprint acquisition apparatus 200.However, the present invention is not intended to limit display resolution Mode.

Continue above-mentioned Fig. 4 A embodiment, each partial fingerprint image 3 in overall fingerprint image 300 is calculated ( Be exactly First partial fingerprint image) and the definition of other partial fingerprint images (namely the second partial fingerprint image) after, Processor circuit 240 can control prompting equipment 230 to export the first cue to user 100.First cue is pointed out The first position of partial fingerprint image 3 and the second place of other partial fingerprint images in overall fingerprint image 300.Processor electricity Road 240 can further control prompting equipment 230 to export the second cue for including directional information, and the second cue is reminded User 100 performs another touching operation.Directional information reminds the user of the fingerprint to move institute according to the second cue The finger of fingerprint is stated so that fingerprint sensor 210 can extract is judged as " unintelligible " second in the first touching operation and locally refers to Print image.

In one embodiment, the first cue and the second cue as described above are from screen prompt, auditory tone cues It is chosen with least one of vibration prompt.For example, the first cue in the present embodiment is screen prompt, This cause user 100 can be understood which of overall fingerprint image 300 partial fingerprint image be clearly and which Individual partial fingerprint image is unsharp.The second cue in embodiments of the present invention is sound audio number, and tut is frequently Number remind fingerprint user 100 movement have the fingerprint finger allow fingerprint sensor 210 according to second prompting The partial fingerprint image of signal extraction second.The present invention is not intended to limit the species of the first cue and the second cue.

After the second cue is exported, user 100 can perform the second touching according to the instruction of the second cue Operate to touch fingerprint acquisition apparatus 200 again, this causes the extraction of fingerprint acquisition apparatus 200 to be judged as unsharp second Partial fingerprint image.

Specifically, Fig. 4 B show that identification according to embodiments of the present invention intercepts by fingerprint acquisition apparatus second is original The schematic diagram of fingerprint image.After user performs the second touching operation, fingerprint acquisition apparatus 200 can be by as Fig. 4 A be above-mentioned Operation, the second original fingerprint image of extraction 402 and the field of direction 408 for producing the second original fingerprint image 402.Processor circuit 240 can recognize the part for the lower middle that the second original fingerprint image 402 is fingerprint according to the direction 42 of the field of direction 408.

Integrally refer in this example, it is assumed that processor circuit 240 recognizes the second original fingerprint image 402 and is only located in Partial fingerprint image 10 in print image 300.Processor circuit 240 can be held according still further to the field of direction 402 and the field of direction 406 The splicing of the image of row the first original fingerprint image and the second original fingerprint image.Processor circuit 240 can be further Recalculate the definition of each partial fingerprint image 0~14 in overall fingerprint image 300 and judge in the first touching behaviour (the namely the 3rd locally refers at least partial fingerprint image for being judged as in second partial fingerprint image of " unintelligible " in work Print image) whether it is judged as clearly after the second touching operation is performed.

After the second touching operation described in Fig. 4 B, it is assumed that partial fingerprint image 3 and partial fingerprint image 10 it is clear Degree is all judged as " clear ", and the definition of other partial fingerprint images is still judged as " unintelligible ".In the present embodiment In, processor circuit 240 can be by (namely the 3rd local fingerprint figure of partial fingerprint image 10 after the second touching operation is performed Picture) it is added to the First partial fingerprint image for being judged as " clear ".Because partial fingerprint image 3 and partial fingerprint image 10 with Outer partial fingerprint image is still judged as " unintelligible ", and these partial fingerprint images are still sorted in the second local fingerprint image Picture.

Hereafter, the controllable prompting equipment of processor circuit 240 exports the first cue to user 100, the first prompting Signal points out the 3rd position of partial fingerprint image 3 and partial fingerprint image 10 in overall fingerprint image 300.First prompting letter The partial fingerprint image outside partial fingerprint image 3 and partial fingerprint image 10 in overall fingerprint image 300 number is also indicated that The 4th position.The touching that user can perform another time again according still further to the first prompting and the second prompting operates.

In the present embodiment, after according to the second cue extraction at least operation of one second partial fingerprint image, Processor circuit 240 can determine the partial fingerprint image (namely the 3rd partial fingerprint image) in the second partial fingerprint image Whether it is afterwards clearly in current touching operation.If all the second partial fingerprint image is all still to be unsharp, processing The controllable prompting equipment 230 of device circuit 240 exports cue (namely the 3rd cue) and reminds user 100 to perform separately Once touching operation.User 100 further can press finger again so that fingerprint sensor 210 extract again to Few one second partial fingerprint image.

Fig. 5 shows the signal according to embodiments of the present invention that the fingerprint image that operation is spliced afterwards is repeatedly touched in execution Figure.

With reference to figure 5, after user performs repeatedly touching operation, processor circuit 240 can operate according to from all touchings Obtained in the fingerprint image 500 that is spliced of original fingerprint image.In addition, after each touching operation, processing Device circuit 240 can determine whether the quantity for being recognized as the First partial fingerprint image of " clear " is more than threshold value.If first game The number of portion's fingerprint image is more than or equal to threshold value, then processor circuit 240 terminates extraction at least one second partial fingerprint image And an at least First partial fingerprint image is stored to the storage device 220 in fingerprint acquisition apparatus 200.Hereafter, processor electricity Road 240 can recognize the fingerprint of user 100 according to the First partial fingerprint image in the fingerprint image 500 being spliced.At this In embodiment, threshold value is set as " 9 ", but the present invention is not meant to the numerical value of the threshold value of limitation.If in addition, performing a touching The number of First partial fingerprint image is still below threshold value after operation, then processor circuit 240 will export the first cue With the second cue to indicate that user 100 performs another touching operation, until the number of First partial fingerprint image Equal to or more than threshold value.

In one embodiment, after each touching operation, processor circuit 240 can determine whether the fingerprint image being spliced Whether 500 size is more than threshold value.If the size for the fingerprint image 500 being spliced is more than or equal to pixel value " 256*256 ", Then processor circuit 240 terminates extraction at least one second partial fingerprint image and stores First partial fingerprint image to fingerprint sense Survey the storage device 220 of device 200.Hereafter, processor circuit 240 can be according to first among the fingerprint image 500 being spliced Partial fingerprint image recognizes the fingerprint of user 100.However, the present invention is not intended to the size of threshold limit.If in addition, The size for the fingerprint image being spliced will export the first prompting after a touching operation still less than threshold value, processor circuit 240 Signal and the second cue with indicate user 100 perform another touching operation until the fingerprint image 500 of splicing is more than or Equal to threshold value.

Fig. 6 A show the schematic diagram of the cue of output first according to embodiments of the present invention.Fig. 6 B are shown according to the present invention The schematic diagram of the cue of output first of embodiment.Fig. 6 C show the cue of output first according to embodiments of the present invention Schematic diagram.

Fig. 6 A are refer to, in one embodiment, prompt equipment 230 to export the first cue by display unit.The The position that one partial fingerprint image is located in overall fingerprint image can be used shown by fine rule.Second partial fingerprint image is positioned at whole Position in body fingerprint image can be used shown by thick line.User 100 can clearly be known by the thick line on display unit The partial fingerprint image of road second is located at the position in overall fingerprint image.

Fig. 6 B are refer to, in an embodiment, prompt equipment 230 to export the first cue by display unit.Display Unit can show the definition of each partial fingerprint image in overall fingerprint image in display unit.User 100 can be by The definition that display unit is shown knows clearly the position that the second partial fingerprint image is located in overall fingerprint image.In Fig. 6 B Embodiment in, it is noted that, the partial fingerprint image for having definition " 0 ", " 33 " or " 66 " can be classified into second game One of partial fingerprint image in portion's fingerprint image.

Fig. 6 C are refer to, in the present embodiment, prompt equipment 230 to export the first cue by display unit. The first face that the position of First partial fingerprint image in overall fingerprint image can be drawn in overall fingerprint image by using Color 60 is shown.The position of the second partial fingerprint image in overall fingerprint image can be drawn in overall fingerprint image by use Second color 62 as in is shown.User 100 can be by the second color 62 being shown in display unit clearly The position of solution second partial fingerprint image in overall fingerprint image.

Fig. 7 is the flow chart of depicted the step of being used to sense the method for fingerprint according to embodiments of the present invention.

With reference to figs. 2 and 7 the method for being used to sense fingerprint of the embodiment of the present invention is at least applied to Fig. 2 fingerprint sensing Device 200, but the present invention is not limited thereto.

Illustrated with Fig. 2 fingerprint acquisition apparatus 200, in step S701, multiple parts that fingerprint sensor 210 takes the fingerprint Fingerprint image, wherein the multiple partial fingerprint image locally refers to including an at least First partial fingerprint image and at least one second Print image.In step S703, processor circuit 240 refers to according to an at least First partial fingerprint image for partial fingerprint image identification Line, wherein partial fingerprint image form the overall fingerprint image of fingerprint.

Fig. 8 is flow chart the step of being used to sense the method for fingerprint according to depicted in another embodiment of the present invention.With reference to Fig. 2 and Fig. 8, the method that the present embodiment is used to sense fingerprint is at least suitable for Fig. 2 fingerprint acquisition apparatus 200, but the present invention is simultaneously Not limited to this.

Illustrated with Fig. 2 fingerprint acquisition apparatus 200, in step S801, multiple parts that fingerprint sensor 210 takes the fingerprint Fingerprint image, wherein the multiple partial fingerprint image locally refers to including an at least First partial fingerprint image and at least one second Print image.In step S803, processor circuit 240 calculates each at least First partial fingerprint image and described at least one The definition of second partial fingerprint image.In step S805, equipment 230 is prompted to export the first cue, wherein first carries Show that signal points out described in overall fingerprint image at least first position of a First partial fingerprint image and described at least 1 The second place of two partial fingerprint images.In step S807, equipment 230 is prompted to export the second prompting letter for including directional information Number, wherein directional information reminds user's movement of the fingerprint to have the finger of the fingerprint so that fingerprint sensor 210 According at least one second partial fingerprint image described in the second cue extraction.In step S809, fingerprint sensor 210 extracts described At least one second partial fingerprint image.In step S811, processor circuit 240 calculates each at least First partial fingerprint image The definition of picture and at least one second partial fingerprint image.In step S813, processor circuit 240 judges described at least one Whether at least one the 3rd partial fingerprint image in the second partial fingerprint image is clear.If at least one the 3rd local fingerprint Image is unsharp, and the method re-executes step S805.If at least one the 3rd partial fingerprint image is clearly, In step S815, processor circuit 240 adds at least one the 3rd partial fingerprint image and referred to an at least First partial Print image and the running for performing step 817.

In step S817, processor circuit 240 judges whether the number of an at least First partial fingerprint image is more than Threshold value.If the number of an at least First partial fingerprint image is non-to be more than threshold value, the method performs step S805 again. If the number of an at least First partial fingerprint image is more than threshold value, in step S819, processor circuit 240 terminates extraction An at least one second partial fingerprint image and at least First partial fingerprint image described in storing is to storage device 220.This Afterwards, in step S821, processor circuit 240 can at least a First partial fingerprint image be distinguished according in partial fingerprint image Know fingerprint.

In sum, in an embodiment of the present invention, fingerprint acquisition apparatus and the method for sensing fingerprint provide well The number of operation is touched in user's experience and attenuating during fingerprint register.

Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (20)

  1. A kind of 1. fingerprint acquisition apparatus, it is characterised in that including:
    Fingerprint sensor, to the multiple partial fingerprint images to take the fingerprint, wherein the multiple partial fingerprint image is included extremely Few a First partial fingerprint image and at least one second partial fingerprint image;And
    Processor circuit, be electrically connected to the fingerprint sensor and to according to the multiple partial fingerprint image extremely A few First partial fingerprint image recognizes the fingerprint,
    Wherein the multiple partial fingerprint image forms the overall fingerprint image of the fingerprint.
  2. 2. fingerprint acquisition apparatus according to claim 1, it is characterised in that also include:
    Equipment is prompted, is electrically connected to the processor circuit, and to export the first cue to user,
    Wherein described first cue is pointed out positioned at an at least First partial fingerprint image described in the overall fingerprint image First position and at least one second partial fingerprint image the second place.
  3. 3. fingerprint acquisition apparatus according to claim 2, it is characterised in that wherein,
    The prompting equipment output includes the second cue of directional information,
    Wherein described directional information reminds the user of the fingerprint to move the hand of the fingerprint according to second cue Instigate to obtain at least one second partial fingerprint image described in the fingerprint sensor extraction.
  4. 4. fingerprint acquisition apparatus according to claim 3, it is characterised in that wherein described first cue and described Two cues from screen prompt, auditory tone cues and vibration prompt at least one be chosen.
  5. 5. fingerprint acquisition apparatus according to claim 3, it is characterised in that wherein carried according to second cue After taking at least operation of one second partial fingerprint image,
    Whether at least one the 3rd partial fingerprint image of at least one second partial fingerprint image described in the processor circuit judgement Clearly;And
    If at least one the 3rd partial fingerprint image is clearly, at least 1 the 3rd innings described in the processor circuit addition Portion's fingerprint image at least First partial fingerprint image described in.
  6. 6. fingerprint acquisition apparatus according to claim 5, it is characterised in that also include:
    Storage device, the processor circuit is electrically connected to,
    Whether the number of an at least First partial fingerprint image is more than threshold value described in wherein described processor circuit judgement,
    If the number of an at least First partial fingerprint image is more than the threshold value, the processor circuit terminates to carry An at least First partial fingerprint image described at least one second partial fingerprint image and storage is taken to the storage device.
  7. 7. fingerprint acquisition apparatus according to claim 3, it is characterised in that wherein carried according to second cue After taking at least operation of one second partial fingerprint image,
    Whether at least one the 3rd partial fingerprint image of at least one second partial fingerprint image described in the processor circuit judgement Clearly;And
    If at least one the 3rd partial fingerprint image is unsharp, the processor circuit control prompting equipment is defeated Go out one the 3rd cue and caused with reminding the user to press the finger again described in the fingerprint sensor extraction At least one second partial fingerprint image.
  8. 8. fingerprint acquisition apparatus according to claim 1, it is characterised in that wherein described processor circuit calculates each described The definition of an at least First partial fingerprint image and at least one second partial fingerprint image.
  9. 9. fingerprint acquisition apparatus according to claim 8, it is characterised in that also include:
    Equipment is prompted, is electrically connected to the processor circuit, and to export each at least First partial fingerprint image The definition of picture and at least one second partial fingerprint image.
  10. 10. fingerprint acquisition apparatus according to claim 1, it is characterised in that the pixel of wherein described overall fingerprint image Number is more than the number of pixels of the fingerprint sensor.
  11. A kind of 11. method for sensing fingerprint, suitable for fingerprint acquisition apparatus, it is characterised in that including:
    Multiple partial fingerprint images of the fingerprint are extracted, wherein the multiple partial fingerprint image includes an at least First partial Fingerprint image and at least one second partial fingerprint image;And
    An at least First partial fingerprint image recognizes the fingerprint according to the multiple partial fingerprint image,
    Wherein the multiple partial fingerprint image forms the overall fingerprint image of the fingerprint.
  12. 12. the method for the sensing fingerprint according to claim 11, it is characterised in that also include:
    The first cue is exported to user,
    Wherein described first cue is pointed out positioned at an at least First partial fingerprint image described in the overall fingerprint image First position and at least one second partial fingerprint image the second place.
  13. 13. the method for the sensing fingerprint according to claim 12, it is characterised in that also include:
    Output includes the second cue of directional information,
    Wherein described directional information reminds the user of the fingerprint to move the hand of the fingerprint according to second cue Instigate to obtain at least one second partial fingerprint image described in the fingerprint acquisition apparatus extraction.
  14. 14. the method for the sensing fingerprint according to claim 13, it is characterised in that wherein described first cue It is chosen with least one of second cue from screen prompt, auditory tone cues and vibration prompt.
  15. 15. the method for the sensing fingerprint according to claim 13, it is characterised in that wherein carried according to described second After the step of showing at least second partial fingerprint image described in signal extraction, in addition to:
    Whether at least one the 3rd partial fingerprint image of at least one second partial fingerprint image is clear described in judging;And
    If at least one the 3rd partial fingerprint image is clearly, at least one the 3rd partial fingerprint image described in addition to institute State an at least First partial fingerprint image.
  16. 16. the method for the sensing fingerprint according to claim 15, it is characterised in that also include:
    Whether the number of an at least First partial fingerprint image is more than threshold value described in judging;And
    If the number of an at least First partial fingerprint image is more than the threshold value, terminate described in extraction at least 1 the A two partial fingerprint images and at least First partial fingerprint image described in storing is to storage device.
  17. 17. the method for the sensing fingerprint according to claim 13, it is characterised in that wherein carried according to described second After the step of showing at least second partial fingerprint image described in signal extraction, in addition to:
    Whether at least one the 3rd partial fingerprint image of at least one second partial fingerprint image is clear described in judging;And
    If at least one the 3rd partial fingerprint image is unsharp, one the 3rd cue is exported to remind the use Person presses the finger again so that at least one second is local described in the fingerprint sensor extraction of the fingerprint acquisition apparatus Fingerprint image.
  18. 18. the method for the sensing fingerprint according to claim 11, it is characterised in that also include:
    Calculate the definition of each at least First partial fingerprint image and at least one second partial fingerprint image.
  19. 19. the method for the sensing fingerprint according to claim 18, in addition to:
    Export the definition of each at least First partial fingerprint image and at least one second partial fingerprint image.
  20. 20. the method for the sensing fingerprint according to claim 11, it is characterised in that wherein described overall fingerprint image Number of pixels be more than the fingerprint acquisition apparatus fingerprint sensor number of pixels.
CN201611101598.9A 2016-05-03 2016-12-05 Fingerprint sensing device and method for sensing fingerprint CN107341437B (en)

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US201662330867P true 2016-05-03 2016-05-03
US62/330,867 2016-05-03
US15/255,158 US9977946B2 (en) 2016-05-03 2016-09-02 Fingerprint sensor apparatus and method for sensing fingerprint
US15/255,158 2016-09-02

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