CN104615991A - Fingerprint sensing device, electronic product and fingerprint sensing method thereof - Google Patents
Fingerprint sensing device, electronic product and fingerprint sensing method thereof Download PDFInfo
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- CN104615991A CN104615991A CN201510068210.9A CN201510068210A CN104615991A CN 104615991 A CN104615991 A CN 104615991A CN 201510068210 A CN201510068210 A CN 201510068210A CN 104615991 A CN104615991 A CN 104615991A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000010219 correlation analysis Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 230000005057 finger movement Effects 0.000 claims description 5
- 230000000449 premovement Effects 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/60—Static or dynamic means for assisting the user to position a body part for biometric acquisition
- G06V40/67—Static or dynamic means for assisting the user to position a body part for biometric acquisition by interactive indications to the user
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Abstract
The invention discloses a fingerprint sensing device, a product with a fingerprint sensing function and a fingerprint sensing method of the product. The fingerprint sensing device comprises a fingerprint acquisition unit and an image reconstruction unit. The fingerprint acquisition unit is used for acquiring a fingerprint image of a finger, pressing the fingerprint acquisition unit, of a user. The image reconstruction unit is used for instructing the finger to conduct corresponding movement operation on the fingerprint acquisition unit according to the fingerprint image acquired by the fingerprint acquisition unit so as to acquire different secondary fingerprint images; the image reconstruction unit conducts correlation analysis on the secondary fingerprint images acquired by the fingerprint acquisition unit, conducts splicing on the secondary fingerprint images according to the analysis result, and judges whether a fingerprint image formed through splicing meets predetermined requirements or not, and if not, the image reconstruction unit continues instructing the finger to conduct corresponding movement operation on the fingerprint acquisition unit according to the fingerprint image formed through splicing until the situation that the fingerprint image formed through splicing meets the predetermined requirements is determined.
Description
Technical field
The present invention relates to fingerprint sensing technical field, particularly relate to a kind of fingerprint acquisition apparatus, there is the electronic product of fingerprint sensing function and the finger sensing method of electronic product.
Background technology
In order to improve the safety in utilization of electronic product, at present, increasing electronic product is provided with fingerprint acquisition apparatus, by gathering the fingerprint image of user and carry out unlocking and the function such as payment.
The fingerprint image acquisition method of existing fingerprint acquisition apparatus comprises push type and slidingtype two kinds of acquisition modes, so, slidingtype acquisition method can cause anamorphose, affect recognition effect, and the image that push type acquisition method gathers is limited to the area of the fingerprint sensing element array of fingerprint acquisition apparatus at every turn, and lack relevance between the image that successively pressing gathers, cause sampled images to be difficult to reach the requirement of identification.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the good fingerprint acquisition apparatus of a kind of fingerprint recognition effect, there is the electronic product of described fingerprint acquisition apparatus and the finger sensing method of electronic product.
For achieving the above object, the invention provides following technical scheme:
A kind of fingerprint acquisition apparatus, comprising:
Fingerprint collecting unit, for gathering the fingerprint image of the user's finger pressed on it; With
Image reconstruction unit, fingerprint image instruction finger for collecting according to described fingerprint collecting unit carries out corresponding mobile operation on described fingerprint collecting unit, to obtain different each secondary fingerprint images, described image reconstruction unit carries out correlation analysis by each secondary fingerprint image collected described fingerprint collecting unit, according to analysis result, each secondary fingerprint image is spliced, and confirm whether spliced fingerprint image meets pre-provisioning request, if do not met, then continue instruction finger according to spliced fingerprint image on described fingerprint collecting unit, carry out corresponding mobile operation, until confirm that spliced fingerprint image meets pre-provisioning request.
Preferably, the mobile operation information of the finger indicated by described image reconstruction unit is prompted to user by a Tip element.
Preferably, the mobile operation information of finger indicated by described image reconstruction unit by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or be prompted to user by the mode that display, voice, this three of vibrational feedback combine.
Preferably, when described fingerprint image does not meet predetermined requirement, the mobile operation information of the finger indicated by described image reconstruction unit comprises the Distance geometry direction of the pre-movement of finger.
Preferably, when described fingerprint image meets pre-provisioning request, described image reconstruction unit further indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
Preferably, the described predetermined area requiring to include spliced fingerprint image is not less than a predetermined threshold, or falls into a preset range.
Preferably, the step that described image reconstruction unit reconstructs the fingerprint image of satisfied pre-provisioning request by splicing each secondary fingerprint image comprises:
Step one: receive the first secondary fingerprint image, according to the mobile operation of the first secondary fingerprint image indicating user finger, to gather the second secondary fingerprint image;
Step 2: receive the second secondary fingerprint image, analyze the correlativity of the second secondary fingerprint image and the first secondary fingerprint image, and according to analysis result, the second secondary fingerprint image and the first secondary fingerprint image are spliced, confirm whether spliced fingerprint image meets pre-provisioning request, if do not meet predetermined requirement, then continue instruction finger mobile, until confirm that spliced fingerprint image meets pre-provisioning request, otherwise perform step 3;
Step 3: indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
Preferably, if the fingerprint image that described image reconstruction unit analyzes current acquisition is uncorrelated with the fingerprint image obtained before, then give up the fingerprint image of current acquisition, if relevant, then the fingerprint image of current acquisition is spliced with the fingerprint image obtained before.
Preferably, partly overlap between the adjacent fingerprint image that described fingerprint collecting unit collects.
Preferably, described fingerprint collecting unit gathers fingerprint image when user points and stops mobile, or the fingerprint image of described fingerprint collecting unit collection is stationary fingerprint image.
Preferably, described fingerprint collecting unit comprises:
Multiple sensing element, points input for receiving user;
Scanning sample circuit, for being connected with described multiple sensing element, obtains the information in fingerprint of user's finger by described multiple sensing element; With
DLC (digital logic circuit), for being connected with described scanning sample circuit, is combined into the fingerprint image of a reservation shape by the information in fingerprint that described scanning sample circuit obtains.
Preferably, described multiple sensing element is arranged in rectangular array, and the information in fingerprint that described scanning sample circuit obtains is combined into rectangle fingerprint image by described DLC (digital logic circuit).
Preferably, described image reconstruction unit comprises:
Analytic unit, for analyzing the correlativity of each secondary fingerprint image that described fingerprint collecting unit collects;
Concatenation unit, splices each secondary fingerprint image for the correlation analysis result according to analytic unit;
Judging unit, for judging whether spliced fingerprint image meets pre-provisioning request;
Indicating member, for the mobile operation pointed according to the judged result indicating user of judging unit.
Preferably, described image reconstruction unit comprises further:
Storage unit, for storing the fingerprint image that described fingerprint collecting unit collects;
Described judging unit is further used for judging whether the fingerprint image of described cell stores is the first secondary fingerprint image.
The present invention also provides a kind of fingerprint acquisition apparatus, comprising:
Fingerprint collecting unit, for gathering the fingerprint image of the user's finger pressed on it; With
Image reconstruction unit, fingerprint image instruction finger for collecting according to described fingerprint collecting unit carries out corresponding mobile operation on described fingerprint collecting unit, to obtain each several part image of same fingerprint respectively, described image reconstruction unit carries out correlation analysis by each several part image collected described fingerprint collecting unit, and splice according to analysis result, to reconstruct described same fingerprint.
Preferably, the mobile operation information of finger indicated by described image reconstruction unit by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or be prompted to user by the mode that display, voice, this three of vibrational feedback combine.
Preferably, described image reconstruction unit is to successively collecting fingerprint image carries out correlation analysis, splice successively collecting fingerprint image according to analysis result, and confirm whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then the continuation of indicating user finger is mobile gathers fingerprint image, until confirm that spliced fingerprint image meets pre-provisioning request.
Preferably, when described fingerprint image does not meet predetermined requirement, the mobile operation information of the finger indicated by described image reconstruction unit comprises the Distance geometry direction of the pre-movement of finger.
Preferably, the described predetermined area requiring to include spliced fingerprint image is not less than a predetermined threshold, or falls into a preset range.
Preferably, described fingerprint acquisition apparatus comprises control module further, and described control module points for controlling described fingerprint collecting unit collection user the stationary fingerprint image stopped when moving.
Preferably, described fingerprint collecting unit comprises multiple sensing element, points input for receiving user, and described multiple sensing element is arranged in rectangle induction arrays, for obtaining rectangle fingerprint image.
The present invention further provides a kind of electronic product with fingerprint sensing function, described electronic product comprises the fingerprint acquisition apparatus as above described in any one.
Preferably, described electronic product comprises Tip element further, and the mobile operation information of the finger indicated by described image reconstruction unit is prompted to user by described Tip element.
Preferably, described Tip element by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or point out the mobile operation information of finger to user by the mode that display, voice, this three of vibrational feedback combine.
Preferably, described electronic product comprises control module further, whether described control module is the input of effective fingerprint for the fingerprint image meeting pre-provisioning request confirming described fingerprint acquisition apparatus and reconstruct, and when being judged as that effective fingerprint inputs, controlling described electronic product and performing corresponding function.
The present invention further provides a kind of finger sensing method of electronic product, described finger sensing method comprises:
Gather the fingerprint image of user's finger;
Mobile according to the fingerprint image indicating user finger collected, to gather different fingerprint images;
To successively collecting fingerprint image carries out correlation analysis;
Splice successively collecting fingerprint image according to analysis result;
Confirm whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then the continuation of indicating user finger is mobile gathers fingerprint image, until confirm that spliced fingerprint image meets pre-provisioning request.
Preferably, described finger sensing method comprises further: as confirmed, spliced fingerprint image meets pre-provisioning request, then indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
Preferably, described finger sensing method comprises further: point out the information of indicating user finger movement to user by adopting display, voice, this three of vibrational feedback one of them or mode that wherein arbitrarily the two combines or three combines.
Preferably, according to the mobile Distance geometry direction comprising the movement of indicating user finger of the fingerprint image indicating user finger collected.
Preferably, the fingerprint image successively gathered partly overlaps.
Preferably, described finger sensing method comprises further: the fingerprint image of storage of collected.
Preferably, the described predetermined area requiring to include spliced fingerprint image is not less than a threshold value, or falls into a preset range.
Preferably, described finger sensing method comprises further: whether detecting user finger moves, and gathers fingerprint image when detecting finger and stopping mobile.
Preferably, the fingerprint image gathered for each time is the different piece image of the same fingerprint that user points.
Fingerprint acquisition apparatus, electronic product and the finger sensing method provided of the present invention is the fingerprint image according to collecting, instruction finger is mobile, thus progressively obtain each several part image of same fingerprint, and by correlation analysis, each several part image is spliced, thus reconstruct described same fingerprint.Relatively, the fingerprint image so after reconstruct closer to the true picture of user fingerprints, and then is more conducive to fingerprint recognition, improves user's service property (quality).
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a better embodiment of fingerprint acquisition apparatus of the present invention.
Fig. 2 is the structural representation of a better embodiment of the unit of fingerprint collecting shown in Fig. 1.
The structural representation of the better embodiment that Fig. 3 is image reconstruction unit shown in Fig. 1.
Fig. 4 is a kind of process flow diagram of finger sensing method of product.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, Fig. 1 is the structural representation of a better embodiment of fingerprint acquisition apparatus of the present invention.Described fingerprint acquisition apparatus 10 is applicable in a product 100.Described product 100 is as being electronic product, or the product of other suitable type.Described electronic product comprises the product that mobile phone, panel computer, bank card, punched-card machine etc. can arrange fingerprint acquisition apparatus 10.Described fingerprint acquisition apparatus 10 presses the fingerprint of the finger on it for sensing user, correspondingly, described product 100 judges whether the fingerprint that described fingerprint acquisition apparatus 10 senses is effective fingerprint, as being effective fingerprint, the then corresponding function of corresponding execution, as unblock, payment etc.Preferably, described product 100, by more described fingerprint acquisition apparatus 10 fingerprint sensed and the similarity being pre-stored within the fingerprint in product 100, confirms whether the fingerprint that described fingerprint acquisition apparatus 10 senses is effective fingerprint.
Described fingerprint acquisition apparatus 10 is a step-by-step movement fingerprint acquisition apparatus, comprises fingerprint collecting unit 11 and image reconstruction unit 13.Described fingerprint collecting unit 11 is connected with described image reconstruction unit 13.Wherein, described fingerprint collecting 11 unit is for gathering the fingerprint image of the user's finger pressed on it.Described image reconstruction unit 13 carries out corresponding mobile operation for the fingerprint image instruction finger collected according to described fingerprint collecting unit 11 on described fingerprint collecting unit 11, to obtain each several part image of same fingerprint respectively, described image reconstruction unit 13 is by carrying out correlation analysis to each several part image that described fingerprint collecting unit 11 collects, and splice according to analysis result, to reconstruct described same fingerprint.Wherein, every parts of images is a secondary fingerprint image.
Due to the fingerprint image that fingerprint acquisition apparatus 10 of the present invention is according to collecting, instruction finger is mobile, thus progressively obtains each several part image of same fingerprint, and is spliced each several part image by correlation analysis, thus reconstructs described same fingerprint.Relatively, the fingerprint image so after reconstruct is closer to the true picture of user fingerprints, and accordingly, the product 100 being more convenient for being provided with fingerprint acquisition apparatus 10 carries out fingerprint recognition, improves user's service property (quality).
The mobile operation information of finger indicated by it is prompted to user by a Tip element 20 by described image reconstruction unit 13.Indication information the mode of visual perception can be prompted to user by user by described Tip element 20.Preferably, described Tip element or by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or be prompted to user by the mode that display, voice, this three of vibrational feedback combine.
In the present embodiment, described product 100 comprises described Tip element 20.So, described Tip element 20 also can non-ly be the element of described product 100, is another device independent of product 100.
Described image reconstruction unit 13 carries out correlation analysis to the fingerprint image successively collected, splice successively collecting fingerprint image according to analysis result, and confirm whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then continue indicating user finger and on described fingerprint collecting unit 11, move operation accordingly to gather fingerprint image, until confirm that spliced fingerprint image meets pre-provisioning request.Preferably, each secondary fingerprint image successively collected is different, and overlaps between adjacent fingerprint image.
When described fingerprint image does not meet predetermined requirement, the mobile operation information of finger indicated by described image reconstruction unit 13 comprises the Distance geometry direction of the pre-movement of finger.Thus, obtain next required secondary fingerprint image more accurately.
Further, when described fingerprint image meets pre-provisioning request, indicating user fingerprint image acquisition is complete further for described image reconstruction unit 13, and indicating user exits fingerprint image acquisition operation.Similarly, described indication information is prompted to user by described Tip element 20.
The described predetermined area requiring to include spliced fingerprint image is not less than a predetermined threshold, such as 3.2mm × 3.2mm.In addition, described pre-provisioning request can comprise the quality requirements scope of spliced fingerprint image further.
Preferably, the step that described image reconstruction unit reconstructs the fingerprint image of satisfied pre-provisioning request by splicing each secondary fingerprint image comprises:
Step one: receive the first secondary fingerprint image, according to the mobile operation of the first secondary fingerprint image indicating user finger, to gather the second secondary fingerprint image;
Step 2: receive the second secondary fingerprint image, analyze the correlativity of the second secondary fingerprint image and the first secondary fingerprint image, and according to analysis result, the second secondary fingerprint image and the first secondary fingerprint image are spliced, confirm whether spliced fingerprint image meets pre-provisioning request, if do not meet predetermined requirement, then continue instruction finger mobile, until confirm that spliced fingerprint image meets pre-provisioning request, otherwise perform step 3;
Step 3: indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
Wherein, in step 2, after the second secondary fingerprint image and the first secondary fingerprint image splice, when described image reconstruction unit 13 confirms that spliced fingerprint image does not meet predetermined requirement, then the direction of instruction finger movement and distance, to gather the 3rd secondary fingerprint image.Then, correlation analysis is carried out to the 3rd secondary fingerprint image and spliced fingerprint image before, and according to analysis result, the 3rd secondary fingerprint image and spliced fingerprint image are before spliced, and then confirm this time whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then continue instruction finger mobile, obtain fourth officer fingerprint image, analyze again, splice and confirm, so repeat, until confirm that spliced fingerprint image meets pre-provisioning request.
It should be noted that, user is in the process of moveable finger, may be moved situations such as exceeding indicated distance, thus cause the fingerprint image of current collection uncorrelated with the fingerprint image gathered before, correspondingly, in the case, image reconstruction unit 13 preferably gives up the fingerprint image of current acquisition, and when relevant, then the fingerprint image of current acquisition is spliced with the fingerprint image obtained before.So, the present invention is not limited to this, when the fingerprint image that described image reconstruction unit 13 analyzes current acquisition is uncorrelated with the fingerprint image obtained before, also the fingerprint image of current acquisition can be retained, indicate the mobile operation of finger according to the fingerprint image of current acquisition and the fingerprint image that obtains before, gather the fingerprint image relevant to the fingerprint image of current acquisition and the fingerprint image that obtains before to make fingerprint collecting unit 11.Equally, described same fingerprint can also be reconstructed.
Further, described image reconstruction unit 13 is also not limited to often receive carries out correlation analysis and concatenation once secondary fingerprint image and the fingerprint image received before, may also be and carry out correlation analysis and concatenation with the fingerprint image collected before again when receiving two secondary fingerprint images, can change according to actual needs.
Preferably, described fingerprint collecting unit 11 gathers fingerprint image when user points and stops mobile, or in other words, the fingerprint image that described fingerprint collecting unit 11 gathers is stationary fingerprint image.Thus, the accuracy of the fingerprint image gathered can be ensured.
Accordingly, described fingerprint sensing unit 10 comprises detecting unit 15 and control module 17 further, and whether described detecting unit 15 moves for detecting finger.Described control module 17 controls described fingerprint collecting unit 11 when described detecting unit 15 detects and points and stop mobile starting to gather stationary fingerprint image.
So, in other embodiments, described fingerprint sensing unit 10 also can not comprise described detecting unit 15 and described control module 17, according to indication information, user's finger moves to relevant position and naturally can suspend certain hour, and correspondingly, fingerprint sensing unit 10 correspondence gathers new fingerprint image.
Preferably, each several part fingerprint image that described fingerprint collecting unit 11 gathers is rectangle fingerprint image.
Further, refer to Fig. 2, Fig. 2 is the structural representation of a better embodiment of the unit of fingerprint collecting shown in Fig. 1 11.Described fingerprint collecting unit 11 comprises multiple sensing element 111, scanning sample circuit 113, DLC (digital logic circuit) 115.Described multiple sensing element 111 points input for receiving user.Described scanning sample circuit is used for being connected with described multiple sensing element 111, is obtained the information in fingerprint of user's finger by described multiple sensing element 111.The information in fingerprint that described scanning sample circuit 113 obtains, for being connected with described scanning sample circuit 113, is combined into the fingerprint image of a reservation shape by described DLC (digital logic circuit) 115.Preferably, state DLC (digital logic circuit) 115 output described in and represent the digital signal of fingerprint image to described image reconstruction unit 13.
More preferably, described multiple sensing element 111 is arranged in rectangular array, and the information in fingerprint that described scanning sample circuit 113 obtains is combined into rectangle fingerprint image by described DLC (digital logic circuit) 115.In the present embodiment, described multiple sensing element 111 is arranged in the rectangular array of three rows and four columns, and so, the present invention is not limited to this, and described rectangular array also can be the rectangular array of the rectangular array of single file multiple row, two row multiple rows or other multiple lines and multiple rows.Preferably, the present invention gathers fingerprint image by carrying out self-capacitance scanning to described multiple sensing element 111.In other embodiments, the present invention also gathers fingerprint by other suitable scan modes such as mutual capacitance scanning or optical profile type scanning, inductance type scannings.
Refer to Fig. 3, the structural representation of the better embodiment that Fig. 3 is image reconstruction unit 13 shown in Fig. 1.Described image reconstruction unit 13 comprises analytic unit 131, concatenation unit 133, judging unit 135 and indicating member 137.The correlativity of each secondary fingerprint image of described analytic unit 131 for analyzing described fingerprint collecting unit 11 and collecting.Described concatenation unit 133 splices each secondary fingerprint image for the correlation analysis result according to analytic unit 131.Described judging unit 135 is for judging whether spliced fingerprint image meets pre-provisioning request.The mobile operation of described indicating member 137 for pointing according to the judged result indicating user of judging unit 135.
Preferably, described image reconstruction unit 13 comprises storage unit 139 further, the fingerprint image that described storage unit 139 collects for storing described fingerprint collecting unit 11.Described judging unit 135 is further used for judging whether the fingerprint image that described storage unit 139 stores is the first secondary fingerprint image.When the fingerprint image judging described storage is the first secondary fingerprint image, described indicating member 137 correspondence of the judgement according to judging unit 135 instruction fingers carry out corresponding mobile operation, to gather the second secondary fingerprint image.Next, indicating member 137 constantly can indicate the mobile operation of finger according to the judged result correspondence of judging unit 135, until the fingerprint image of reconstruct meets pre-provisioning request.
It should be noted that, preferably, indicating member points according to the judged result of judging unit 135 and in conjunction with corresponding the making of the spliced fingerprint image of concatenation unit 133 the concrete indication information that this moves how many distance and whichaway movement.Thus, obtain each several part fingerprint image.Finally, carry out through concatenation unit 133 pairs of each several part fingerprint images the whole fingerprint splicing reconstructing user finger.
As shown in the above, the present invention is by providing a kind of step-by-step movement fingerprint acquisition apparatus 10, progressively obtain the various piece of the whole fingerprint of user's finger, and then reconstruct overall fingerprint by analyzing and splicing, because the fingerprint image of various piece is all close to actual fingerprint image, therefore the accuracy of spliced fingerprint image is higher, is out of shape less, is more convenient for identifying.
Further, fingerprint acquisition apparatus 10 of the present invention is owing to progressively obtaining image, and the arithmetic element required for it is less, thus can save cost.
Accordingly, the invention provides product 100, especially a kind of electronic product, comprise above-mentioned fingerprint acquisition apparatus 10, correspondingly, the service property (quality) of described product 100 is higher, and cost is lower.
Refer to Fig. 4, Fig. 4 is the process flow diagram of the finger sensing method of a kind of product of the present invention.Described product is applicable to the said goods 100, so, is also applicable to the product of other suitable type, is not limited to the said goods 100.Described finger sensing method comprises the steps:
S1: the fingerprint image gathering user's finger;
S2: mobile according to the fingerprint image indicating user finger collected, to gather different fingerprint images;
S3: to successively collecting fingerprint image carries out correlation analysis;
S4: splice successively collecting fingerprint image according to analysis result;
S5: confirm whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then the continuation of indicating user finger is mobile gathers fingerprint image, until confirm that spliced fingerprint image meets pre-provisioning request.
It should be noted that, description S1, S2, S3, S4, S5 of the above-mentioned step to finger sensing method do not limit the sequencing that step performs, sequence of steps can carry out according to actual needs adjusting and can exist between step overlapping, repeat.
Preferably, after step s 5, described finger sensing method comprises further: as confirmed, spliced fingerprint image meets pre-provisioning request, then indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
Described finger sensing method comprises further: point out the information of indicating user finger movement to user by adopting display, voice, this three of vibrational feedback one of them or mode that wherein arbitrarily the two combines or three combines.
After step S1, described finger sensing method comprises further: the fingerprint image of storage of collected.
Before step S1, described finger sensing method comprises further: whether detecting user finger moves, and gathers fingerprint image when detecting finger and stopping mobile.Described fingerprint image is stationary fingerprint image.
It should be noted that, according to the mobile Distance geometry direction comprising the movement of indicating user finger of the fingerprint image indicating user finger collected in step S2.The fingerprint image gathered for each time is the different piece image of the same fingerprint that user points.
Preferably, the fingerprint image successively gathered partly overlaps.The described predetermined area requiring to include spliced fingerprint image is not less than a threshold value.
Particularly, the step reconstructing a fingerprint in described finger sensing method by splicing each several part fingerprint image comprises:
Step one: receive the first secondary fingerprint image, according to the mobile operation of the first secondary fingerprint image indicating user finger, to gather the second secondary fingerprint image;
Step 2: receive the second secondary fingerprint image, analyze the correlativity of the second secondary fingerprint image and the first secondary fingerprint image, and according to analysis result, the second secondary fingerprint image and the first secondary fingerprint image are spliced, confirm whether spliced fingerprint image meets pre-provisioning request, if do not meet predetermined requirement, then continue instruction finger mobile, until confirm that spliced fingerprint image meets pre-provisioning request, otherwise perform step 3;
Step 3: indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
Wherein, in step 2, after the second secondary fingerprint image and the first secondary fingerprint image splice, during through confirming that spliced fingerprint image does not meet predetermined requirement, then the direction of instruction finger movement and distance, to gather the 3rd secondary fingerprint image.Then, correlation analysis is carried out to the 3rd secondary fingerprint image and spliced fingerprint image before, and according to analysis result, the 3rd secondary fingerprint image and spliced fingerprint image are before spliced, and then confirm this time whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then continue instruction finger mobile, obtain fourth officer fingerprint image, analyze again, splice and confirm, so repeat, until confirm that spliced fingerprint image meets pre-provisioning request.
Finger sensing method of the present invention indicates finger mobile according to the fingerprint image collected, thus progressively obtain each several part image of same fingerprint, and by correlation analysis, each several part image is spliced, thus reconstruct the finger print of described user input.Relatively, the fingerprint image so after reconstruct closer to the true picture of user fingerprints, thus uses the fingerprint recognition accuracy of the electronic product of this finger sensing method higher, can improve the experience of user.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (34)
1. a fingerprint acquisition apparatus, comprising:
Fingerprint collecting unit, for gathering the fingerprint image of the user's finger pressed on it; With
Image reconstruction unit, fingerprint image instruction finger for collecting according to described fingerprint collecting unit carries out corresponding mobile operation on described fingerprint collecting unit, to obtain different each secondary fingerprint images, described image reconstruction unit carries out correlation analysis by each secondary fingerprint image collected described fingerprint collecting unit, according to analysis result, each secondary fingerprint image is spliced, and confirm whether spliced fingerprint image meets pre-provisioning request, if do not met, then continue instruction finger according to spliced fingerprint image on described fingerprint collecting unit, carry out corresponding mobile operation, until confirm that spliced fingerprint image meets pre-provisioning request.
2. fingerprint acquisition apparatus according to claim 1, is characterized in that: the mobile operation information of the finger indicated by described image reconstruction unit is prompted to user by a Tip element.
3. fingerprint acquisition apparatus according to claim 1, it is characterized in that: the mobile operation information of the finger indicated by described image reconstruction unit by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or be prompted to user by the mode that display, voice, this three of vibrational feedback combine.
4. fingerprint acquisition apparatus according to claim 1, is characterized in that: when described fingerprint image does not meet predetermined requirement, the mobile operation information of the finger indicated by described image reconstruction unit comprises the Distance geometry direction of the pre-movement of finger.
5. fingerprint acquisition apparatus according to claim 4, is characterized in that: when described fingerprint image meets pre-provisioning request, and described image reconstruction unit further indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
6. fingerprint acquisition apparatus according to claim 1, is characterized in that: the described predetermined area requiring to include spliced fingerprint image is not less than a predetermined threshold, or falls into a preset range.
7. fingerprint acquisition apparatus according to claim 1, is characterized in that: described image reconstruction unit reconstructs the fingerprint image of satisfied pre-provisioning request step by splicing each secondary fingerprint image comprises:
Step one: receive the first secondary fingerprint image, according to the mobile operation of the first secondary fingerprint image indicating user finger, to gather the second secondary fingerprint image;
Step 2: receive the second secondary fingerprint image, analyze the correlativity of the second secondary fingerprint image and the first secondary fingerprint image, and according to analysis result, the second secondary fingerprint image and the first secondary fingerprint image are spliced, confirm whether spliced fingerprint image meets pre-provisioning request, if do not meet predetermined requirement, then continue instruction finger mobile, until confirm that spliced fingerprint image meets pre-provisioning request, otherwise perform step 3;
Step 3: indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
8. the fingerprint acquisition apparatus according to claim 1 or 7, it is characterized in that: if the fingerprint image that described image reconstruction unit analyzes current acquisition is uncorrelated with the fingerprint image obtained before, then give up the fingerprint image of current acquisition, if relevant, then the fingerprint image of current acquisition is spliced with the fingerprint image obtained before.
9. fingerprint acquisition apparatus according to claim 1, is characterized in that: partly overlap between the adjacent fingerprint image that described fingerprint collecting unit collects.
10. fingerprint acquisition apparatus according to claim 1, is characterized in that: described fingerprint collecting unit gathers fingerprint image when user points and stops mobile, or the fingerprint image of described fingerprint collecting unit collection is stationary fingerprint image.
11. fingerprint acquisition apparatus according to claim 1, is characterized in that: described fingerprint collecting unit comprises:
Multiple sensing element, points input for receiving user;
Scanning sample circuit, for being connected with described multiple sensing element, obtains the information in fingerprint of user's finger by described multiple sensing element; With
DLC (digital logic circuit), for being connected with described scanning sample circuit, is combined into the fingerprint image of a reservation shape by the information in fingerprint that described scanning sample circuit obtains.
12. fingerprint acquisition apparatus according to claim 11, is characterized in that: described multiple sensing element is arranged in rectangular array, and the information in fingerprint that described scanning sample circuit obtains is combined into rectangle fingerprint image by described DLC (digital logic circuit).
13. fingerprint acquisition apparatus according to claim 1, is characterized in that: described image reconstruction unit comprises:
Analytic unit, for analyzing the correlativity of each secondary fingerprint image that described fingerprint collecting unit collects;
Concatenation unit, splices each secondary fingerprint image for the correlation analysis result according to analytic unit;
Judging unit, for judging whether spliced fingerprint image meets pre-provisioning request;
Indicating member, for the mobile operation pointed according to the judged result indicating user of judging unit.
14. fingerprint acquisition apparatus according to claim 13, is characterized in that: described image reconstruction unit comprises further:
Storage unit, for storing the fingerprint image that described fingerprint collecting unit collects;
Described judging unit is further used for judging whether the fingerprint image of described cell stores is the first secondary fingerprint image.
15. 1 kinds of fingerprint acquisition apparatus, comprising:
Fingerprint collecting unit, for gathering the fingerprint image of the user's finger pressed on it; With
Image reconstruction unit, fingerprint image instruction finger for collecting according to described fingerprint collecting unit carries out corresponding mobile operation on described fingerprint collecting unit, to obtain each several part image of same fingerprint respectively, described image reconstruction unit carries out correlation analysis by each several part image collected described fingerprint collecting unit, and splice according to analysis result, to reconstruct described same fingerprint.
16. fingerprint acquisition apparatus according to claim 15, it is characterized in that: the mobile operation information of the finger indicated by described image reconstruction unit by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or be prompted to user by the mode that display, voice, this three of vibrational feedback combine.
17. fingerprint acquisition apparatus according to claim 15, it is characterized in that: described image reconstruction unit is to successively collecting fingerprint image carries out correlation analysis, splice successively collecting fingerprint image according to analysis result, and confirm whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then the continuation of indicating user finger is mobile gathers fingerprint image, until confirm that spliced fingerprint image meets pre-provisioning request.
18. fingerprint acquisition apparatus according to claim 17, is characterized in that: when described fingerprint image does not meet predetermined requirement, the mobile operation information of the finger indicated by described image reconstruction unit comprises the Distance geometry direction of the pre-movement of finger.
19. fingerprint acquisition apparatus according to claim 17, is characterized in that: the described predetermined area requiring to include spliced fingerprint image is not less than a predetermined threshold, or falls into a preset range.
20. fingerprint acquisition apparatus according to claim 15, is characterized in that: described fingerprint acquisition apparatus comprises control module further, and described control module points for controlling described fingerprint collecting unit collection user the stationary fingerprint image stopped when moving.
21. fingerprint acquisition apparatus according to claim 15, is characterized in that: described fingerprint collecting unit comprises multiple sensing element, point input for receiving user, and described multiple sensing element is arranged in rectangle induction arrays, for obtaining rectangle fingerprint image.
22. 1 kinds of electronic products with fingerprint sensing function, is characterized in that: described electronic product comprises as the fingerprint acquisition apparatus in claim 1,4-21 as described in any one.
23. electronic products according to claim 22, is characterized in that: described electronic product comprises Tip element further, and the mobile operation information of the finger indicated by described image reconstruction unit is prompted to user by described Tip element.
24. electronic products according to claim 23, it is characterized in that: described Tip element by display, voice, this three of vibrational feedback one of them, or wherein the two combines arbitrarily by display, voice, this three of vibrational feedback, or point out the mobile operation information of finger to user by the mode that display, voice, this three of vibrational feedback combine.
25. electronic products according to claim 22, it is characterized in that: described electronic product comprises control module further, whether described control module is the input of effective fingerprint for the fingerprint image meeting pre-provisioning request confirming described fingerprint acquisition apparatus and reconstruct, and when being judged as that effective fingerprint inputs, controlling described electronic product and performing corresponding function.
The finger sensing method of 26. 1 kinds of electronic products, is characterized in that: described finger sensing method comprises:
Gather the fingerprint image of user's finger;
Mobile according to the fingerprint image indicating user finger collected, to gather different fingerprint images;
To successively collecting fingerprint image carries out correlation analysis;
Splice successively collecting fingerprint image according to analysis result;
Confirm whether spliced fingerprint image meets pre-provisioning request, if do not met predetermined requirement, then the continuation of indicating user finger is mobile gathers fingerprint image, until confirm that spliced fingerprint image meets pre-provisioning request.
27. finger sensing method according to claim 26, it is characterized in that: described finger sensing method comprises further: as confirmed, spliced fingerprint image meets pre-provisioning request, then indicating user fingerprint image acquisition is complete, and indicating user exits fingerprint image acquisition operation.
28. finger sensing method according to claim 26, is characterized in that: described finger sensing method comprises further: point out the information of indicating user finger movement to user by adopting display, voice, this three of vibrational feedback one of them or mode that wherein arbitrarily the two combines or three combines.
29. finger sensing method according to claim 26, is characterized in that: according to the mobile Distance geometry direction comprising the movement of indicating user finger of the fingerprint image indicating user finger collected.
30. finger sensing method according to claim 26, is characterized in that: the fingerprint image successively gathered partly overlaps.
31. finger sensing method according to claim 26, is characterized in that: described finger sensing method comprises further: the fingerprint image of storage of collected.
32. finger sensing method according to claim 26, is characterized in that: the described predetermined area requiring to include spliced fingerprint image is not less than a threshold value, or falls into a preset range.
33. finger sensing method according to claim 26, is characterized in that: described finger sensing method comprises further: whether detecting user finger moves, and gathers fingerprint image when detecting finger and stopping mobile.
34. finger sensing method according to claim 26, is characterized in that: the fingerprint image gathered for each time is the different piece image of the same fingerprint that user points.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068210.9A CN104615991A (en) | 2015-02-10 | 2015-02-10 | Fingerprint sensing device, electronic product and fingerprint sensing method thereof |
| PCT/CN2015/099486 WO2016127712A1 (en) | 2015-02-10 | 2015-12-29 | Fingerprint sensing device, electronic product and fingerprint sensing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068210.9A CN104615991A (en) | 2015-02-10 | 2015-02-10 | Fingerprint sensing device, electronic product and fingerprint sensing method thereof |
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| Publication Number | Publication Date |
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| CN104615991A true CN104615991A (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510068210.9A Withdrawn CN104615991A (en) | 2015-02-10 | 2015-02-10 | Fingerprint sensing device, electronic product and fingerprint sensing method thereof |
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| CN (1) | CN104615991A (en) |
| WO (1) | WO2016127712A1 (en) |
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