CN106778179A - A kind of identity identifying method based on the identification of ultrasonic wave lip reading - Google Patents
A kind of identity identifying method based on the identification of ultrasonic wave lip reading Download PDFInfo
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- CN106778179A CN106778179A CN201710006640.7A CN201710006640A CN106778179A CN 106778179 A CN106778179 A CN 106778179A CN 201710006640 A CN201710006640 A CN 201710006640A CN 106778179 A CN106778179 A CN 106778179A
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- lip
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001228 spectrum Methods 0.000 claims abstract description 22
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 239000000700 radioactive tracer Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000004071 biological effect Effects 0.000 abstract description 4
- 230000003542 behavioural effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003362 replicative effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
Abstract
A kind of identity identifying method based on the identification of ultrasonic wave lip reading, comprises the following steps:(1) signal emitting-source sends ultrasonic signal, and signal receives source and receives the reflected signal from mouth;(2) lid speech characteristic extraction carried out to the reflected signal for gathering, the lid speech characteristic of extraction includes the corresponding spectrum signature of one section of lip reading event and the dynamic lip outline feature of user;(3) user is identified and certification according to the lid speech characteristic extracted in step (2).Beneficial effects of the present invention are:On the basis of being customized without additional hardware, the ability perceived using ultrasonic wave obtains the characteristic parameter of authentication, and lower deployment cost is low, has expanded application scenarios of the ultrasonic technology in mobile terminal;Using the otherness of user's behavioural habits when identical lip reading event is expressed, it is combined with biological property, solves the security breaches in the technologies such as existing face recognition, fingerprint recognition, efficient authentication can be reached.
Description
Technical field
The present invention relates to identity identifying technology field, especially a kind of authentication side based on the identification of ultrasonic wave lip reading
Method.
Background technology
In current information-intensive society, accurate identity identifying technology is the prerequisite of system safety.Traditional identity
Authentication techniques are often based on identification certification article (identity card, of feature (text password, identity card ID) or customization
Raw card).However, the former is easily taken certain technological means and is replicated and is stolen, the latter then often occur loss and
The phenomenon of damage.Therefore, the study of characteristic information and user behavior custom of biology is introduced on identity authorization system then very
It is necessary.On the other hand, existing biological property information, such as face recognition, fingerprint recognition, Application on Voiceprint Recognition can be disliked by other
Meaning user is recorded by taking pictures, replicating the modes such as fingerprint, recording, and potential safety hazard is brought to system.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of authentication side based on the identification of ultrasonic wave lip reading
Method, can solve the security breaches in existing facial recognition techniques, reach efficient certification.
In order to solve the above technical problems, the present invention provides a kind of identity identifying method based on the identification of ultrasonic wave lip reading, bag
Include following steps:
(1) signal emitting-source sends ultrasonic signal, and signal receives source and receives the reflected signal from mouth;
(2) lid speech characteristic extraction is carried out to the reflected signal for gathering, the lid speech characteristic of extraction includes one section of lip reading event pair
The dynamic lip outline feature of spectrum signature and user answered;
(3) user is identified and certification according to the lid speech characteristic extracted in step (2).
Preferably, in step (2), the extracting method of the dynamic lip outline feature of user comprises the following steps:
(1) mobile terminal produces ultrasonic signal so that ultrasonic signal covers the face of user;
(2) for one section of lip reading event, the ultrasonic signal to being reflected from user's face carries out denoising filtering, obtains only
Mouth reflected signal when being moved comprising user's mouth;One section of lip reading event refers to one as password that user oneself defines
Words;
(3) change of signal frequency and phase is caused to be turned to recognize finger print information using the motion of user's mouth.
Preferably, in step (2), following step is included for one section expressed by the user extracting method of specific lip reading event
Suddenly:
(1) reflected signal for only including mouth motion is segmented, obtains block signal, and extract the block signal
Spectrum signature parameter, match corresponding speech events;
(2) the corresponding speech events of block signal are carried out into combination learning, is mapped to corresponding lip reading event.
Preferably, in step (3), the identification and authentication of user comprises the following steps:
(1) user password information record;It is anti-using the ultrasonic wave under the influence of one section of user's lip reading event of mobile terminal records
Signal is penetrated as recognition code;
(2) spectrum signature matching;When authenticating user identification is carried out, user repeats same one section of lip reading, is believed by reflecting
Number carry out authentication with the feature extraction of tracer signal, characteristic matching;Extract the signal of active user's mouth motor reflex
Spectrum signature, judges whether to match with the lip reading event spectrum signature in mobile terminal key, and such as spectrum signature is mismatched, then
It is disabled user;
(3) lip outline characteristic matching:The lip outline of different user all has differences, when the frequency spectrum of lip reading event
, it is necessary to further carry out the biology authentication of user during characteristic matching;It is imaged by the reflected signal to mouth, builds and work as
The dynamic lip outline feature of preceding user, the lip outline feature phase of all users corresponding with the customer data base lip reading event
Matching, if the match is successful, certification passes through, otherwise is then disabled user.
Preferably, mobile terminal includes that information acquisition module conciliates lock control module;Wherein information acquisition module includes letter
Number transmitting submodule and signal receiving submodule;Signal transmitting submodule is the loudspeaker of mobile terminal, sends ultrasonic signal;
Signal receiving submodule is the microphone of mobile terminal, receives the reflected signal from user's face;Unblock control module includes
Identification submodule, matched sub-block and authentication sub module;The reflection letter that wherein identification submodule is obtained to signal receiving module
Number carry out the extraction of real-time lid speech characteristic and the generation of mobile terminal accessing key;Matched sub-block is used to use current accessed
The lid speech characteristic at family is matched with the information of customer data base, judge its whether the default lip reading key phase with mobile terminal
Match somebody with somebody;Whether authentication sub module more than threshold value will carry out authentication according to matching degree, if exceeding threshold value, it is mobile eventually
The authentication at end passes through, if it is not, then the mobile terminal keeps lock-out state, is judged to that disabled user swarms into.
Beneficial effects of the present invention are:On the basis of being customized without additional hardware, the ability perceived using ultrasonic wave is obtained
The characteristic parameter of authentication is taken, lower deployment cost is low, expanded application scenarios of the ultrasonic technology in mobile terminal;Using user
When identical lip reading event is expressed, the otherness of behavioural habits, is combined with biological property, solves existing face recognition, refers to
Security breaches in the technologies such as line identification, can reach efficient authentication.
Brief description of the drawings
Fig. 1 is application scenarios example of the invention.
Fig. 2 is the high-level schematic functional block diagram of mobile terminal of the invention.
Fig. 3 is the method flow schematic diagram of lid speech characteristic identification of the invention.
Fig. 4 is identity authentication method schematic flow sheet of the invention.
Specific embodiment
As shown in figure 1, being an application scenarios example of the invention.First, each user Xiang Yi of acquisition for mobile terminal
After dynamic terminal sends request access information, the key information of each user's synchronous driving is passed into customer data base, database
The key information of all active users is identified and matched, matching degree highest subscriber authentication passes through, be the shifting
The legitimate user of dynamic terminal.Other users are disabled user, and mobile terminal keeps lock-out state to it.
As shown in Fig. 2 being the overall structure figure of mobile terminal of the present invention.One kind that the present invention is provided is carried out based on ultrasonic wave
The identity identifying technology and method of lip reading identification.It is divided by function as the big module of lock control two is conciliate in information gathering.Wherein believe
Breath acquisition module includes that signal launches submodule and signal receiving submodule.Signal transmitting submodule raising one's voice for mobile terminal
Device, sends ultrasonic signal;Signal receiving submodule is the microphone of mobile terminal, receives the reflection letter from user's face
Number.Unblock control module includes identification submodule, matched sub-block and authentication sub module.Wherein identification submodule connects to signal
The reflected signal for receiving module acquisition carries out the extraction of real-time lid speech characteristic and the generation of mobile terminal accessing key.Matching submodule
Block be used for the lid speech characteristic of current accessed user is matched with the information of customer data base, judge its whether with mobile terminal
Default lip reading key match.Whether authentication sub module more than threshold value will carry out authentication according to matching degree, if
More than threshold value, then the authentication of mobile terminal passes through, if it is not, then the mobile terminal keeps lock-out state, is judged to non-
Method user swarm into.
As shown in figure 3, a kind of lid speech characteristic of the identity identifying technology and method for carrying out lip reading identification based on ultrasonic wave is known
Method for distinguishing, comprises the following steps:
(1) denoising filtering is carried out to the ultrasonic signal reflected from user's face, is obtained only comprising the motion of user's mouth
When mouth reflected signal.
(2) using the principle of ultrasonic imaging, according to mouth different parts to reflection, the scattering power of ultrasonic signal not
Together, the dynamic lip outline feature of user is constructed, as the biological property of user.
(3) reflected signal for only including mouth motion is segmented, obtains block signal, and extract the block signal
Spectrum signature parameter, match corresponding speech events.
(4) the corresponding speech events of block signal are carried out into combination learning, is mapped to corresponding lip reading content.
As shown in figure 4, the mobile end described in a kind of identity identifying technology and method that lip reading identification is carried out based on ultrasonic wave
The flow for authenticating ID method at end, comprises the following steps:
(1) foundation of customer data base:User selects any lip reading event as the key of mobile terminal authentication, and
The method extracted using the lid speech characteristic shown in Fig. 3, dynamic lip outline of the training user when the lip reading event is told about is special
Levy, and corresponding spectrum signature.Training set is obtained with this, as the key of authenticating user identification.
(2) identification and authentication of user:For the identification for accessing mobile terminal user, the lip reading of active user is being obtained
After feature samples collection, the sample set of active user and the matching degree of training set in lip reading information database are analyzed.Its matching journey
The analysis of degree can be subdivided into following two parts:
A () spectrum signature is matched:The spectrum signature of the signal of active user's mouth motor reflex is extracted, determines whether to move
Lip reading event spectrum signature in dynamic terminal key matches, and such as spectrum signature is mismatched, then be disabled user, under otherwise entering
One step.
(b) lip outline characteristic matching:The lip outline of different user all has differences, when the frequency spectrum of lip reading event
, it is necessary to further carry out the biology authentication of user during characteristic matching.It is imaged by the reflected signal to mouth, obtains and work as
The dynamic lip outline feature of preceding user, the lip outline feature phase of all users corresponding with the customer data base lip reading event
Matching, if the match is successful, certification passes through, otherwise is then disabled user.
The present invention is recognized by the use of the lip detection of user as user fingerprints, due to sound need not be sent, will not be by sound
Frequency recording equipment is recorded, with good security.Lip reading event refers to word or sentence, is voluntarily preset by user, its
His user cannot obtain lip reading event by the method taken pictures or record, and can be widely applied to mobile phone unblock, pay application paying
The fields such as cipher authentication.
Although the present invention is illustrated and has been described with regard to preferred embodiment, it is understood by those skilled in the art that
Without departing from scope defined by the claims of the present invention, variations and modifications can be carried out to the present invention.
Claims (5)
1. it is a kind of based on ultrasonic wave lip reading identification identity identifying method, it is characterised in that comprise the following steps:
(1) signal emitting-source sends ultrasonic signal, and signal receives source and receives the reflected signal from mouth;
(2) lid speech characteristic extraction is carried out to the reflected signal for gathering, the lid speech characteristic of extraction includes that one section of lip reading event is corresponding
Spectrum signature and the dynamic lip outline feature of user;
(3) user is identified and certification according to the lid speech characteristic extracted in step (2).
It is 2. as claimed in claim 1 to be based on the identity identifying method that ultrasonic wave lip reading is recognized, it is characterised in that in step (2),
The extracting method of the dynamic lip outline feature of user comprises the following steps:
(1) mobile terminal produces ultrasonic signal so that ultrasonic signal covers the face of user;
(2) for one section of lip reading event, the ultrasonic signal to being reflected from user's face carries out denoising filtering, is only included
Mouth reflected signal when user's mouth is moved;One section of lip reading event refers to a word as password of user oneself definition;
(3) change of signal frequency and phase is caused to be turned to recognize finger print information using the motion of user's mouth.
It is 3. as claimed in claim 1 to be based on the identity identifying method that ultrasonic wave lip reading is recognized, it is characterised in that in step (2),
Extracting method for one section expressed by user specific lip reading event comprises the following steps:
(1) reflected signal for only including mouth motion is segmented, obtains block signal, and extract the frequency of the block signal
Spectrum signature parameter, matches corresponding speech events;
(2) the corresponding speech events of block signal are carried out into combination learning, is mapped to corresponding lip reading event.
It is 4. as claimed in claim 1 to be based on the identity identifying method that ultrasonic wave lip reading is recognized, it is characterised in that in step (3),
The identification and authentication of user comprises the following steps:
(1) user password information record;Believed using the ultrasonic reflections under the influence of one section of user's lip reading event of mobile terminal records
Number as recognition code;
(2) spectrum signature matching;When authenticating user identification is carried out, user repeats same one section of lip reading, by reflected signal with
The feature extraction of tracer signal, characteristic matching carry out authentication;Extract the frequency spectrum of the signal of active user's mouth motor reflex
Feature, judges whether to match with the lip reading event spectrum signature in mobile terminal key, and such as spectrum signature is mismatched, then for non-
Method user;
(3) lip outline characteristic matching:The lip outline of different user all has differences, when the spectrum signature of lip reading event
, it is necessary to further carry out the biology authentication of user during matching;It is imaged by the reflected signal to mouth, builds current using
The dynamic lip outline feature at family, the lip outline feature phase of all users corresponding with the customer data base lip reading event
Match somebody with somebody, if the match is successful, certification passes through, otherwise be then disabled user.
5. it is as claimed in claim 1 to be based on the identity identifying method that ultrasonic wave lip reading is recognized, it is characterised in that mobile terminal bag
Include information acquisition module and conciliate lock control module;Wherein information acquisition module includes that signal launches submodule and signal receives submodule
Block;Signal transmitting submodule is the loudspeaker of mobile terminal, sends ultrasonic signal;Signal receiving submodule is mobile terminal
Microphone, receives the reflected signal from user's face;Unblock control module includes identification submodule, matched sub-block and recognizes
Card submodule;Wherein identification submodule the reflected signal that signal receiving module is obtained is carried out real-time lid speech characteristic extraction and
The generation of mobile terminal accessing key;Matched sub-block is used for the letter by the lid speech characteristic of current accessed user and customer data base
Breath is matched, and judges whether it matches with the default lip reading key of mobile terminal;Authentication sub module will be according to matching degree
Whether authentication is carried out more than threshold value, if exceeding threshold value, the authentication of mobile terminal passes through, if it is not, then institute
State mobile terminal and keep lock-out state, be judged to that disabled user swarms into.
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CN107358085A (en) * | 2017-07-28 | 2017-11-17 | 惠州Tcl移动通信有限公司 | A kind of unlocking terminal equipment method, storage medium and terminal device |
CN107784215A (en) * | 2017-10-13 | 2018-03-09 | 上海交通大学 | Audio unit based on intelligent terminal carries out the user authen method and system of labiomaney |
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CN108959866A (en) * | 2018-04-24 | 2018-12-07 | 西北大学 | A kind of lasting identity identifying method based on high frequency sound wave frequency |
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CN108959866A (en) * | 2018-04-24 | 2018-12-07 | 西北大学 | A kind of lasting identity identifying method based on high frequency sound wave frequency |
CN108959866B (en) * | 2018-04-24 | 2020-10-23 | 西北大学 | Continuous identity authentication method based on high-frequency sound wave frequency |
CN109446774A (en) * | 2018-09-30 | 2019-03-08 | 山东知味行网络科技有限公司 | A kind of identification application method and system |
CN109711350A (en) * | 2018-12-28 | 2019-05-03 | 武汉大学 | A kind of identity identifying method merged based on lip movement and voice |
CN109711350B (en) * | 2018-12-28 | 2023-04-07 | 武汉大学 | Identity authentication method based on lip movement and voice fusion |
CN110600058A (en) * | 2019-09-11 | 2019-12-20 | 深圳市万睿智能科技有限公司 | Method and device for awakening voice assistant based on ultrasonic waves, computer equipment and storage medium |
CN111091831A (en) * | 2020-01-08 | 2020-05-01 | 上海交通大学 | Silent lip language recognition method and system |
CN111091831B (en) * | 2020-01-08 | 2023-04-07 | 上海交通大学 | Silent lip language recognition method and system |
CN111552941B (en) * | 2020-04-22 | 2022-04-26 | 歌尔科技有限公司 | Terminal unlocking method and device, electronic equipment and readable storage medium |
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WO2022028207A1 (en) * | 2020-08-03 | 2022-02-10 | 华为技术有限公司 | Speech recognition method, apparatus, device and system, and computer readable storage medium |
CN113011245A (en) * | 2021-01-28 | 2021-06-22 | 南京大学 | Lip language recognition system and method based on ultrasonic sensing and knowledge distillation |
CN113011245B (en) * | 2021-01-28 | 2023-12-12 | 南京大学 | Lip language identification system and method based on ultrasonic sensing and knowledge distillation |
CN114676735A (en) * | 2022-04-21 | 2022-06-28 | 歌尔股份有限公司 | Lip language identification method and device and computer readable storage medium |
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