CN102332093A - Identity authentication method and device adopting palmprint and human face fusion recognition - Google Patents
Identity authentication method and device adopting palmprint and human face fusion recognition Download PDFInfo
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Abstract
The invention relates to an identity authentication device adopting palmprint and human face fusion recognition, which comprises an image acquisition module, a main processing module and a memory module, wherein the main processing module further comprises a control unit which is electrically connected with the image acquisition module, a human face recognition unit and a palmprint recognition unit which are respectively connected with the control unit, and the memory module which is respectively connected with the human face recognition unit and the palmprint recognition unit. The image acquisition module is used for time-division shooting of biological characteristic images according to a command of the control unit and sending the shot biological characteristic images to the control unit, and the biological characteristic images comprise a human face image and a palmprint image. The control unit is used for sending the shot images to the corresponding human face recognition unit or the palmprint recognition unit for recognition and judging whether identity authentication passes or not according to the human face recognition result and the palmprint recognition result. The problem of needing two acquisition devices for performing double biological characteristic identity authentication is solved, the safety is high and the cost is low.
Description
Technical field
The present invention relates to the living things feature recognition field, the method and the device of particularly a kind of palmmprint and people's face fusion recognition.
Background technology
Biometrics identification technology is classified as 21 century human society is brought one of big technology of revolution sex ten.Biometrics identification technology is at present convenient, safe identity recognizing technology, identification be people itself, do not need body marker outward.Biometrics identification technology utilizes people's physiological characteristic and behavioural characteristic to carry out identification, mainly contains fingerprint recognition, recognition of face, iris recognition, Gait Recognition etc., vein identification, palmmprint identification.
In numerous biometrics identification technologies, fingerprint recognition and face recognition technology are the most ripe at present, use also extensive.Compare with fingerprint identification technology, recognition of face has intuitive, convenience, untouchable.Distinguishing features such as friendly, user's acceptance height.
Compare with these biometrics identification technologies, the palmmprint Recognition Technology Research is started late, and is proposed first in 1985 by Matsumoto Katsuhe.Through development in recent years, some Palm Print Recognition System occurred and occurred.The palmmprint recognition technology is to utilize staff palmmprint road characteristic to carry out the method that identity is differentiated.The palm print characteristics region area is big, and it is many to comprise quantity of information, comprises main line, fold, minutiae point and trigpoint etc.Palm print characteristics has characteristics such as uniqueness, stability, difficult forgery; The collection of palmmprint recognition image is also very convenient, and easy detected person accepts, cost is low, discrimination is high.Authentication identifying method based on palmmprint; Can satisfy the personal identification identification system technical indicator (uniqueness, in real time reliable, precision is high, anti-tamper security, protection privacy); Can overcome the limitation of existing method again; We can say that oneself becomes the palmmprint recognition technology based on biometric identity authentication technique new research and application.Referring to [Chinese Computer Federation's communication,, the 5th phase, palmmprint recognition technology, author: Huang Deshuan, Jia Wei, Li Wenxin in 2011].
Yet,,,, the demand of multi-biological characteristic authentication has been proposed like security protection, financial institution etc. in some application that authentication is had relatively high expectations along with the widespread use of biometrics identification technology.
Represented an emerging trend based on solution multi-modal or that multi-biological characteristic merges, some application meeting has better technical feature than the recognition system of single method.Thereby the potential benefit of multi-biological characteristic solution is can extend to human body entering control area to obtain sensitive data.Like this, just can make living creature characteristic recognition system safer, the invador is impossible with artificiality or the imitation article multi-biological characteristic that comes to out-trick simultaneously basically, and the individual also can change when a certain characteristic is inconvenient flexibly.
Existing multi-modal biological characteristic recognition technology often requires diverse physical characteristics collecting equipment.Such as, the two Verification Systems of recognition of face and fingerprint recognition, recognition of face adopts video camera or camera as image input device, and fingerprint recognition adopts fingerprint acquisition instrument as fingerprint collecting equipment; The collecting device of the two Verification Systems of iris and recognition of face also is diverse.Provide a kind of to need the authentication method of multi-modal biological characteristic cheaply of physical characteristics collecting equipment to become a problem to be solved.
Summary of the invention
Need a plurality of collecting devices, problem that cost is high in order to solve multi-modal biological characteristic identification, the invention provides the method and the device of a kind of palmmprint and people's face fusion recognition, adopt a physical characteristics collecting equipment, the dual-identity authentication of realization palmmprint and people's face.
A kind of palmmprint and people's face fusion identification method comprise:
Image acquisition step uses same image collection module timesharing to obtain biometric image to be certified, and said biometric image comprises: facial image and palmprint image;
Identification step adopts the recognition of face instruction of presetting that said facial image to be certified is discerned, and/or adopts the palmmprint recognition instruction that presets that said image to be certified is discerned, and obtains face recognition result and palmmprint recognition result respectively;
Merge determining step, judge according to face recognition result and palmmprint recognition result whether authentication is passed through.
A kind of palmmprint and people's face fusion recognition device comprise:
Image collection module, main processing block and memory module; Said main processing block further comprises: be electrically connected control module, the face identification unit that is connected with said control module respectively and palmmprint recognition unit with said image collection module, the memory module that is connected respectively with said face identification unit and palmmprint recognition unit.
In the embodiment of the invention; Through adopting same image capture module, gather facial image and palmprint image respectively, from the facial image of gathering, extract face characteristic respectively then; From palmprint image, extract palm print characteristics; Carry out the fusion recognition of face characteristic and palm print characteristics again, both guaranteed the security of multi-modal biological characteristic identification, again through adopting an image capture module to reduce the cost of recognition device.
Description of drawings
Fig. 1 shows the process flow diagram according to the identity identifying method of palmmprint of the present invention and people's face fusion recognition;
Fig. 2 shows the identity identifying method process flow diagram of palmmprint according to an embodiment of the invention and people's face fusion recognition;
Fig. 3 shows palmmprint and the identity identifying method process flow diagram of people's face fusion recognition according to another embodiment of the invention;
Fig. 4 shows the identification authentication system structural drawing of palmmprint according to an embodiment of the invention and people's face fusion recognition;
Fig. 5 shows palmmprint and the identification authentication system structural drawing of people's face fusion recognition according to another embodiment of the invention;
Fig. 6 shows palmmprint and the identification authentication system structural drawing of people's face fusion recognition according to still a further embodiment.
Embodiment
The identity identifying method of a kind of palmmprint of the present invention and people's face fusion recognition is applied to a kind of comprising: the device of image collection module, palmmprint identification module and face recognition module.
The identity identifying method of a kind of palmmprint of the present invention and people's face fusion recognition; As shown in Figure 1; Comprise: image acquisition step, use same image collection module timesharing to obtain biometric image to be certified, said biometric image comprises: facial image and palmprint image; Identification step adopts the recognition of face instruction of presetting that said facial image to be certified is discerned, and/or adopts the palmmprint recognition instruction that presets that said image to be certified is discerned, and obtains face recognition result and palmmprint recognition result respectively; Merge determining step, judge according to face recognition result and palmmprint recognition result whether authentication is passed through.Through method of the present invention; The dual biometric authentication method that adopts the identification of recognition of face and palmmprint to combine; Not only satisfied the higher demand of authentication requirement level of security; And adopt noncontact palmmprint recognition technology and face recognition technology to combine, and adopt same image acquisition equipment just can realize the collection of two kinds of biometric images, practiced thrift cost.
Through specific embodiment content of the present invention is described in further detail below, but the present invention is not restricted to this.
Embodiment 1
The identity identifying method of a kind of palmmprint provided by the invention and people's face fusion recognition, as shown in Figure 2, comprising:
In above-mentioned steps 201 and the step 202, adopt image acquiring device to obtain facial image and palmprint image respectively.In order to use same image acquiring device to obtain palmprint image and facial image, the present invention uses non-contacting image acquiring device, can get access to facial image easily, also can get access to the non-contacting palmprint image that is suitable for discerning simultaneously.
When obtaining palmprint image and facial image, can obtain facial image or palmprint image through sound or interface prompt user according to preset flow process.Such as, at first through the voice suggestion user with palm alignment image deriving means, after image acquiring device gets access to palmprint image, again through the voice suggestion user with people's face alignment image deriving means, so that image acquiring device obtains facial image.Certainly, the mode of prompting can also be the interface display information through identification authentication system, the perhaps mode that combines of voice suggestion and interface display information, and the present invention does not limit this.The order of above-mentioned steps 201 and step 202 can be changed arbitrarily, i.e. the present invention does not limit the order of obtaining facial image and palmprint image.When obtaining palmprint image and facial image, can only obtain a palmprint image or facial image at every turn, also can once obtain many palmprint images or facial image, confirm that according to the storage space of identification authentication system the present invention does not limit this.
Preferably; Said identification authentication system can not done in advance the order of taking facial image and palmprint image and be provided with; But judge automatically that according to the distinguishing characteristics of people's face and palmmprint the biometric image of current shooting is facial image or palmprint image, and call corresponding recognition instruction.Be user-friendly to, also can save the hardware resource for pointing out the user to be provided with of identification authentication system.Because palm has very big-difference with people's appearance ratio in shape, utilize their morphological feature just can well palm and people's face be distinguished.Piecemeal gradient statistic histogram can well be described the form and the marginal distribution of target, realizes simply, is widely used in object detection, and geometry and the optical deformation of image all had good robustness, is fit to very much the resemblance of description people's face and palm.Adopt the piecemeal gradient statistic histogram training svm classifier device of image in the present embodiment in advance; When identification; At first calculate the piecemeal gradient statistic histogram of the biometric image of taking, utilize the svm classifier device to judge that this image is facial image or palmprint image then.
In the above-mentioned steps 203, call the recognition of face instruction facial image that obtains is discerned, at first call the recognition of face instruction of presetting and from the said facial image that obtains, extract face characteristic to be identified.Can adopt Garbor wavelet character method and local binary pattern (LBP, local Binary Patterns) method, from the said facial image that obtains, extract lineup's face characteristic F
m, the face characteristic that extracts usually is the proper vector of one group of multidimensional.Then; With the identification of comparing of the face characteristic that extracts and all face characteristics in the subscriber identity information storehouse that prestores; The process of concrete comparison identification can for: adopt Euclidean distance or mahalanobis distance to represent the similarity of two people's face feature templates; The similarity score of everyone the face feature templates in the subscriber identity information storehouse of calculating the said people's face that extracts and prestoring; And keep the identify label of the face characteristic template of highest similarity score (similarity score is high more, and it is big more to represent that two stack features belong to same individual's possibility) and this highest similarity score correspondence.The identify label of said face characteristic template is the unique identification of the face characteristic template in the subscriber identity information storehouse that prestores, and each sign is represented an identity to be certified, and like a user, each sign can corresponding one or more groups face characteristic template.As first similarity score, the identify label of the face characteristic template that this highest similarity score is corresponding is as first identify label, and temporary transient the preservation with this highest similarity score.
In the above-mentioned steps 204, adopt the palmmprint recognition instruction preset that the said palmprint image that obtains is discerned, obtains the said palmprint image that obtains and the highest similarity score of the palm print characteristics template that prestores.Palm grain identification method can be divided into four big classifications basically: based on the method for structure, based on the method for statistics, based on the method for subspace with based on Methods for Coding.Based on Methods for Coding is to carry out Methods for Coding through the streakline direction of extracting palmprint image, has that discrimination height, characteristic are little, feature extraction and matching speed are fast, realize characteristics such as simple, thereby has obtained using the most widely.The present invention describes the identifying of palmmprint, but is not limited thereto method based on Methods for Coding palmprint image is identified as example.At first, adopt, obtain the identified region of the palmprint image of said collection, be i.e. the palm print characteristics zone like localization method based on contour feature point.So-called contour feature point also can be described as the palm key point, mainly refers to gap point and the finger tip summit of finger root, the most applications utilization be the nip point of forefinger and middle finger and the nip point of the third finger and little finger of toe.The characteristic that the relative position that this method is utilized the palm key point does not change with the change of palm direction, size, position can be confirmed the identified region of a relatively-stationary palmprint image effectively.Then, the identified region of palmprint image is divided into many sub-block, extracts the palmmprint textural characteristics of each sub-piece respectively, then the textural characteristics of each sub-piece is encoded, obtain the palmmprint textural characteristics of the identified region of palmprint image.At last; With the identification of comparing of the palmmprint textural characteristics that obtains and all palm print characteristics in the subscriber identity information storehouse that prestores; The process of concrete comparison identification can for: adopt Euclidean distance or mahalanobis distance to represent the similarity of two palm print characteristics templates; The similarity score of all the palm print characteristics templates in the subscriber identity information storehouse of calculating the said palmmprint that extracts and prestoring; And keep the identify label of the palm print characteristics template of highest similarity score (similarity score is high more, and it is big more to represent that two stack features belong to the possibility of same palm) and this highest similarity score correspondence.The identify label of said palm print characteristics template is the unique identification of the palm print characteristics template in the subscriber identity information storehouse that prestores, and each sign is represented an identity to be certified, and like a user, each sign can corresponding one or more groups palm print characteristics template.As second similarity score, the identify label of the palm print characteristics template that this highest similarity score is corresponding is as second identify label, and temporary transient the preservation with this highest similarity score.
The order of above-mentioned steps 203 and step 204 also can be changed arbitrarily, and the present invention does not do qualification to this.Preferably; Execution in step 203, step 202 were carried out afterwards execution in step 204 immediately immediately after step 201 was carried out; Can make the processing storage space identical with the processing of palmprint image of facial image, reach the effect of conserve memory resource with the identifying time-sharing multiplex with identifying.
In the above-mentioned steps 205, judge according to the face recognition result of step 203 acquisition and the palmmprint recognition result of step 204 acquisition whether authentication is passed through.First similarity score that obtains when said recognition of face is greater than presetting first threshold; And when said palmmprint is discerned second similarity score more than or equal to preset second threshold value; If said first identify label is identical with said second identify label, judge that then authentication passes through; Otherwise judge the authentication failure.Wherein, Said presetting first threshold is confirmed the recognition result that a large amount of facial images carries out recognition training according to the recognition of face instruction; The said second preset threshold value is confirmed the recognition result that a large amount of palmprint images carries out recognition training according to the palmmprint recognition instruction; When discerning similarity score, explain that the confidence level of recognition result is higher more than or equal to this threshold value.
According to the requirement of the strict degree of authentication, also can not judge similarity score, if said first identify label is identical with said second identify label, judge that then authentication passes through; Otherwise judge the authentication failure.
Through identity identifying method provided by the invention, adopt the dual living things feature recognition of recognition of face and palmmprint identification to carry out authentication, guaranteed the security of authentication; Simultaneously, the present invention adopts non-contacting palmmprint recognition technology, through an image acquiring device just can timesharing obtain palmprint image and facial image, practiced thrift the cost of ID authentication device.
Embodiment 2
In order to improve the efficient of authentication, the identity identifying method of a kind of palmmprint that another embodiment of the present invention provides and people's face fusion recognition, as shown in Figure 3, may further comprise the steps.
When first similarity score during, explain that people's face to be certified is that in the user information database of presetting certain is opened the corresponding people's face of face characteristic template greater than presetting first threshold.Said presetting first threshold is more confirmed the recognition result of a large amount of people's faces according to the recognition of face instruction.When said first similarity score is less than or equal to presetting first threshold, this authentification failure.
When second similarity score during, explain that palmmprint to be certified is that in the user information database of presetting certain is opened the corresponding palmmprint of template greater than preset second threshold value.The said second preset threshold value is more confirmed the recognition result of a large amount of palmmprints according to the palmmprint recognition instruction.When said second similarity score is less than or equal to the second preset threshold value, this authentification failure.
When second similarity score that first similarity score that obtains when recognition of face and palmmprint identification obtain all satisfies preset threshold value and requires, judge further whether recognition of face and palmmprint are discerned the identify label that obtains identical.When first identify label of recognition of face acquisition is identical with second identify label of palmmprint identification acquisition; Think that authentication passes through, the user's is the corresponding user of first identify label or second identify label in the preset user information database under people's face promptly to be identified and the palmprint image.Otherwise authentication is failed, and does not have user's to be certified people's face and/or palm print characteristics information in the promptly preset user information database.
In the present embodiment, the order of step 301 ~ 303 and step 304 ~ 306 can be changed, and promptly can gather facial image earlier, and facial image is discerned, and when the similarity score that obtains in recognition of face is higher than presetting first threshold, carries out palmmprint identification again; Can gather palmprint image earlier yet, palmprint image is discerned, when the similarity score that obtains in palmmprint identification is higher than the second preset threshold value, carry out recognition of face again, the present invention does not do qualification to this.
Embodiment 3
Require under the higher situation in efficient authentication; In the step 305 of the foregoing description 2 when the palmprint image that obtains is discerned, the identification of comparing of all palm print characteristics in the palmmprint textural characteristics that can not will obtain and the subscriber identity information storehouse that prestores.But, from preset identity information storehouse, extract all corresponding palm print characteristics templates of this first identify label according to first identify label that obtains in the step 302; Then, with the identification of comparing of the palmmprint textural characteristics that obtains and all corresponding palm print characteristics templates of this first identify label of extraction, obtain the highest similarity score, as second similarity score.In above-mentioned steps 306; Judge that whether second similarity score is greater than the second preset threshold value; When second similarity score during greater than preset second threshold value, think that authentication passes through, user to be certified is that ID is the user of first identify label in the preset user information database.Otherwise, this authentification failure.Needn't carry out the step 307 among the embodiment 2 again.
Equally, present embodiment promptly can be gathered facial image earlier, and facial image is discerned, and when the similarity score that obtains in recognition of face is higher than presetting first threshold, carries out palmmprint identification again; Can gather palmprint image earlier yet, palmprint image is discerned, when the similarity score that obtains in palmmprint identification is higher than the second preset threshold value, carry out recognition of face again, the present invention does not do qualification to this.
Embodiment 4
At first, the present invention provides the identification authentication system of a kind of palmmprint and people's face fusion recognition, and is as shown in Figure 1, and this device comprises: image collection module 10, main processing block 11 and memory module 12; Said main processing block 11 further comprises: control module 111, the face identification unit 113 that is connected with said control module respectively and palmmprint recognition unit 114, and said control module 111 is electrically connected with image collection module 10; Said face identification unit 113 is connected with memory module 12 respectively with palmmprint recognition unit 114.
Wherein, said image collection module 10 further comprises: camera lens 101 and imageing sensor 102, be used for instruction according to control module 111, and the biometric image before the taking lens comprises: facial image or palmprint image, and send to said control module.Said control module 111 is according to preset flow for authenticating ID, and promptly the recognition sequence of facial image and palmprint image is sent to take and instructed to image collection module 10, controls said image collection module 10 and takes facial image and palmprint image to be identified.Said image acquiring device can obtain the biometric image under the visible light environment.Preferably,, before the camera lens of said image acquiring device infra-red transmitting filter can also be set, around camera lens, infrared light filling lamp be set, be used to take the biometric image under the IR in order to adapt to the darker environment of light.
Said face identification unit 113 is called the recognition of face instruction of presetting and from the biometric image that receives, is extracted face characteristic to be identified; And calculate in said face characteristic to be identified and the memory module 12 similarity score of everyone the face feature templates in the stored user information storehouse in advance; With the highest similarity score as first similarity score; And the identify label of the face characteristic template that this highest similarity score is corresponding is as first identify label, and will comprise that the recognition result of said first similarity score and first identify label feeds back to control module 111.
Said palmmprint recognition unit 114 calls the noncontact palmmprint recognition instruction that presets and from the biometric image that receives, extracts palm print characteristics to be identified; And calculate in said palm print characteristics to be identified and the memory module 12 similarity score of all the palm print characteristics templates in the stored user information storehouse in advance; With the highest similarity score as second similarity score; And the identify label of the palm print characteristics template that this highest similarity score is corresponding is as second identify label, and will comprise that said second similarity score and second identify label feed back to control module 111.
Said control module 111 also is used for according to the recognition result of face identification unit 113 with palmmprint recognition unit 114 feedbacks, judges whether authentication is successful.Concrete judgment mode comprises following several kinds, and present embodiment is an example at first to carry out recognition of face.First kind: first similarity score in said recognition result is higher than presetting first threshold; And when said second similarity score is higher than the second preset threshold value; If said first identify label is identical with second identify label, judge that then authentication passes through; Otherwise, the authentication failure.Second kind: when first similarity score in determining face recognition result is higher than presetting first threshold; Proceed palmmprint identification; Second similarity score that obtains until palmmprint identification is higher than the corresponding second preset threshold value; And first identify label that recognition of face obtains, second identify label that identification obtains with palmmprint is identical, thinks that authentication is successful; Otherwise authentification failure determines one's identity.The third: when first similarity score that determines face recognition result is higher than corresponding presetting first threshold; Said control module 111 sends to palmmprint recognition unit 114 with said first identify label; Palmmprint recognition unit 114 is when carrying out follow-up palmmprint identification; The highest similarity score of only calculating the palm print characteristics template in the characteristic of the current palmprint image that the obtains memory module 12 corresponding with said first identify label is as second similarity score; When this second similarity score was higher than the second preset threshold value, the affirmation authentication was passed through, otherwise the authentication failure.The present invention does not limit the order of recognition of face and palmmprint identification, can also be to carry out palmmprint identification earlier, carries out recognition of face again.
Memory module 12 can be flash memory (FLASH), is used for storing in advance the identity information storehouse, comprises at least one palm print characteristics template and at least one face feature templates of at least one identify label in the said identity information storehouse.Each identify label can corresponding a plurality of palm print characteristics templates and face feature templates in the said identity information storehouse.Said memory module 12 can also be used to store the record of authentication.
Embodiment 5
Preferably, as shown in Figure 5, can also comprise like embodiment 4 described identification authentication systems: indicating module 13.Said indicating module 13 can be pronunciation device, like TTS speech chip and loudspeaker; Also can be display device, like LCDs; It also can be the combination of pronunciation device and display device.Said indicating module 13 is electrically connected with control module 111, the information that the steering order that is used for sending according to control module shows or broadcast indication user takes facial image and palmprint image.As passing through auditory tone cues user to be certified with palmmprint alignment image deriving means; Or facial image and the palmprint image taken through the interface display image acquiring device; Be convenient to the quality that user to be certified understands the biometric image that image acquiring device obtains; In time the adjustment attitude so that image acquiring device photographs better biometric image, helps improving the efficient of authentication.
Embodiment 6
Preferably; As shown in Figure 6; Like embodiment 4 described identification authentication systems; Wherein main processing block 11 can also comprise the judging unit 112 that is electrically connected with control module 111, and said judging unit 112 is used for judging automatically that according to the distinguishing characteristics of palmmprint and people's face the biometric image that image acquiring device gets access to is palmprint image or facial image.
Though invention has been described for top combination embodiment, to those skilled in the art, it is understandable that the foregoing description should not thought the protection domain that limits the present invention with this only for example purposes.Protection scope of the present invention is only limited by claim.Though in the above-mentioned explanation, for ease of understanding, the step of method has been adopted the succession description, should be pointed out that for the order of above-mentioned steps and do not do strict the restriction.In addition, realize that all or part of step in the foregoing description method is to instruct relevant hardware to accomplish through program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.Also have, the apparatus structure shown in accompanying drawing or the embodiment only is to schematically show logical organization.The module that wherein shows as separating component maybe or possibly not be physically to separate, and the parts that show as module also possibly be possibly not be physical module perhaps.
In addition, in claims, term " comprises " does not get rid of other parts of existence or step.In addition, although in different claims, comprised each characteristic, these characteristics can be by advantageously combination, and each characteristic is included in the different claims and does not mean that these combination of features are infeasible and/or disadvantageous.In addition, single implication is not got rid of a plurality of.Therefore, the implication of " " etc. is not got rid of a plurality of.
In addition, those skilled in the art can make amendment, change or replace under the prerequisite that does not break away from spirit of the present invention it, and still, the various equivalent variations according to the present invention did still belong to the scope that the present invention is contained.
Claims (12)
1. the identification authentication system of a palmmprint and people's face fusion recognition is characterized in that, comprising: image collection module, main processing block and memory module; Said main processing block further comprises: with control module, the face identification unit that is connected with said control module and the palmmprint recognition unit of said image collection module electrical connection; Memory module is connected respectively with the palmmprint recognition unit with said face identification unit respectively.
2. install according to claim 1; It is characterized in that; Said image collection module is used for taking biometric image according to the instruction of control module, and the biometric image of taking is sent to said control module, and said biometric image comprises: facial image, palmprint image.
3. like the said device of claim 2, it is characterized in that, also comprise: the indicating module that is electrically connected with control module, said indicating module comprises pronunciation device, and/or display device, wherein,
The information that the steering order that said pronunciation device is used for sending according to control module is play or demonstration indication user takes facial image and palmprint image;
The steering order that said display device is used for sending according to control module is play or is shown the information that the indication user takes facial image and palmprint image, and/or shows the biometric image of taking.
4. like claim 2 or 3 said devices; It is characterized in that; Control module will send to face identification unit from the biometric image that image acquiring device receives according to the current identification process of said identification authentication system or the palmmprint recognition unit is discerned, and obtains recognition result.
5. like the said device of claim 2; It is characterized in that; Said main processing block also comprises: with the judging unit that said control module is electrically connected, be used for judging automatically that according to the distinguishing characteristics of palmmprint and people's face the biometric image that image acquiring device is taken is palmprint image or facial image.
6. the identity identifying method that merges of a palmmprint and people's face is applied to each described identification authentication system of claim 1 to 5, it is characterized in that, comprising:
Image acquisition step uses same image collection module timesharing to obtain biometric image to be certified, and said biometric image comprises: facial image and palmprint image;
Identification step adopts the recognition of face instruction of presetting that said facial image to be certified is discerned, and/or adopts the palmmprint recognition instruction that presets that said image to be certified is discerned, and obtains face recognition result and palmmprint recognition result respectively;
Merge determining step, judge according to face recognition result and palmmprint recognition result whether authentication is passed through.
7. method according to claim 6 is characterized in that, the recognition of face instruction that said employing is preset is discerned said facial image to be certified and is specially:
The recognition of face instruction that employing is preset is discerned the said facial image that obtains; The highest similarity score of everyone the face feature templates that obtains the said facial image that obtains and prestore; As first similarity score, and first identify label of the face characteristic template of this first similarity score correspondence;
The palmmprint recognition instruction that employing is preset is discerned said image to be certified and is specially:
The palmmprint recognition instruction that employing is preset is discerned the said palmprint image that obtains; The highest similarity score of all palm print characteristics templates that obtain the said palmprint image that obtains and prestore; As second similarity score, and second identify label of the palm print characteristics template of this second similarity score correspondence.
8. method according to claim 7 is characterized in that, said fusion determining step is specially:
When said first similarity score greater than first threshold, and said second similarity score is during more than or equal to second threshold value set, if said first identify label is identical with said second identify label, judges that then authentication passes through; Otherwise judge the authentication failure.
9. method according to claim 7 is characterized in that,
If image acquisition step at first obtain be facial image the time; Said identification step adopts the recognition of face instruction of presetting that said facial image to be certified is discerned, and said fusion determining step is confirmed when first similarity score that obtains is less than or equal to first predetermined threshold value, the authentication failure; Otherwise; Continue the carries out image obtaining step, obtain palmprint image, and carry out identification step and merge determining step; Said identification step adopts the palmmprint recognition instruction that presets that said palmprint image to be certified is discerned; Said fusion determining step is confirmed when second similarity score that obtains is less than or equal to second predetermined threshold value; The authentication failure; Otherwise,, judge that then authentication passes through if said first identify label is identical with said second identify label;
If image acquisition step at first obtain be palmprint image the time; Said identification step adopts the palmmprint recognition instruction that presets that said palmprint image to be certified is discerned, and said fusion determining step is confirmed when second similarity score that obtains is less than or equal to second predetermined threshold value, the authentication failure; Otherwise; Continue the carries out image obtaining step, obtain facial image, and carry out identification step and merge determining step; Said identification step adopts the recognition of face instruction of presetting that said facial image to be certified is discerned, and said fusion determining step is confirmed when first similarity score that obtains is less than or equal to first predetermined threshold value, the authentication failure; Otherwise,, judge that then authentication passes through if said first identify label is identical with said second identify label.
10. method according to claim 9 is characterized in that,
If image acquisition step at first obtain be facial image the time; Said identification step adopts the recognition of face instruction of presetting that said facial image to be certified is discerned; When said fusion determining step confirms that first similarity score when acquisition is greater than first predetermined threshold value; The identification step that continues to carry out is specially: adopt the palmmprint recognition instruction that presets that the said palmprint image that obtains is discerned; Obtain the highest similarity score of the said palmprint image that the obtains palm print characteristics template corresponding with first identify label that prestores; As second similarity score, then authentication is successful if this second similarity score is greater than second predetermined threshold value, otherwise the authentication failure;
If image acquisition step at first obtain be palmprint image the time; Said identification step adopts the palmmprint recognition instruction that presets that said palmprint image to be certified is discerned; When said fusion determining step confirms that second similarity score when acquisition is greater than second predetermined threshold value; The identification step that continues to carry out is specially: adopt the recognition of face instruction of presetting that the said facial image that obtains is discerned; Obtain the highest similarity score of the said facial image that the obtains face characteristic template corresponding with second identify label that prestores; As first similarity score, then authentication is successful if this first similarity score is greater than first predetermined threshold value, otherwise the authentication failure.
11. according to Claim 8,9,10 each described methods, it is characterized in that said image acquisition step comprises: the flow process according to preset is obtained facial image or palmprint image through sound or interface prompt user.
12. according to Claim 8,9,10 each described methods, it is characterized in that said identification step also comprises, judges that according to the distinguishing characteristics of people's face and palmmprint said biometric image is facial image or palmprint image.
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