CN108763893A - Read-write equipment, method based on recognition of face and electronic equipment - Google Patents
Read-write equipment, method based on recognition of face and electronic equipment Download PDFInfo
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- CN108763893A CN108763893A CN201810383156.0A CN201810383156A CN108763893A CN 108763893 A CN108763893 A CN 108763893A CN 201810383156 A CN201810383156 A CN 201810383156A CN 108763893 A CN108763893 A CN 108763893A
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
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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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
- H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
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- Human Computer Interaction (AREA)
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- General Physics & Mathematics (AREA)
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- Oral & Maxillofacial Surgery (AREA)
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Abstract
The present invention provides a kind of Card read/write method based on recognition of face, includes the following steps：When detecting electronic equipment and being connect with external read-write equipment, camera is started to acquire current face's image information；Collected human face image information is converted to obtain initial pictures, and coding is carried out to initial pictures and obtains digital image sequence to be transmitted；The digital image sequence received is decoded to obtain initial pictures, and initial pictures are pre-processed to obtain gray level image；Whether the similarity for the human face image information for judging gray level image and prestoring is more than preset value, and when the similarity of gray level image and the human face image information to prestore is more than preset value, generates switching command；According to switching command, electronic equipment is switched to readable WriteMode.Card read/write method provided by the invention based on recognition of face improves the safety read and write to electronic equipment.The present invention also provides a kind of read-write equipment and electronic equipment based on recognition of face.
Description
【Technical field】
The present invention relates to Card read/write technical field more particularly to a kind of read-write equipment based on recognition of face, method and
Electronic equipment.
【Background technology】
With the development of science and technology, electronic equipment, for example, mobile phone, has become essential in people's work and life
Tool.Currently, mobile phone is usually connected by USB (Universal Serial Bus, universal serial bus) with computer by user
To be read out to the content stored in mobile phone or be modified to the configuration of mobile phone by computer and by related data
It is written in mobile phone.
However, during computer opponent machine is written and read, it is only necessary to mobile phone is in the unlocked state, if also that is,
The mobile phone of user is usurped by other people in releasing process and is connected with computer, and the leakage of private information of user, Jin Erying will be caused
Ring the safety of user information.
In consideration of it, it is really necessary to provide a kind of read-write equipment, method and electronic equipment based on recognition of face to overcome on
State defect.
【Invention content】
The object of the present invention is to provide a kind of safety higher read-write equipment, method and electronics based on recognition of face to set
It is standby.
To achieve the goals above, the present invention provides a kind of read-write equipment based on recognition of face, is applied to electronic equipment
In, the electronic equipment includes camera；Read-write equipment based on recognition of face includes：
Detecting module, for when detecting the electronic equipment and being connect with external read-write equipment, the camera to be opened
It moves to acquire current face's image information；
Transform coding module, for being converted to collected human face image information to obtain initial pictures, and to institute
It states initial pictures and carries out coding acquisition digital image sequence to be transmitted；
Image processing module, for being decoded to the digital image sequence received to obtain the initial pictures, and
The initial pictures are pre-processed to obtain gray level image；
Judgment module, whether the similarity of the human face image information for judging the gray level image and prestoring, which is more than, is preset
Value, and when the similarity of the gray level image and the human face image information to prestore is more than preset value, generate switching command；
And module for reading and writing, for according to the switching command, the electronic equipment to be switched to readable WriteMode.
The Card read/write method based on recognition of face that the present invention also provides a kind of is applied in electronic equipment, the electronics
Equipment includes camera；The Card read/write method based on recognition of face includes the following steps：
When detecting the electronic equipment and being connect with external read-write equipment, the camera is started and works as forefathers to acquire
Face image information；
Collected human face image information is converted to obtain initial pictures, and the initial pictures are encoded
Digital image sequence is obtained to be transmitted；
The digital image sequence received is decoded to obtain the initial pictures, and the initial pictures are carried out
Pretreatment is to obtain gray level image；
Whether the similarity for the human face image information for judging the gray level image and prestoring is more than preset value, and works as the ash
When the similarity of degree image and the human face image information to prestore is more than preset value, switching command is generated；
According to the switching command, the electronic equipment is switched to readable WriteMode.
The present invention also provides a kind of electronic equipment, including camera, memory and processor；Have in the memory
Read-write equipment based on recognition of face as described above.
Read-write equipment, method and electronic equipment provided by the present invention based on recognition of face, when electronic equipment with it is external
When equipment is connected, current face's image information is acquired by camera based on the read-write equipment of recognition of face, and when judgement is current
When human face image information is that user operates, electronic equipment is just switched to read-write mode.If current face's image information is simultaneously
It is not user, even if electronic equipment is in latching mode, operation can not be written and read to electronic equipment, and then improve
The safety of electronic equipment, avoid the privacy information of user because electronic equipment is stolen reveal the case where.
To enable the above objects, features, and advantages of invention to be clearer and more comprehensible, present pre-ferred embodiments cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
【Description of the drawings】
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the real block diagram for preferably applying the electronic equipment that example provides of the present invention.
Fig. 2 is the functional block diagram of the read-write equipment based on recognition of face in Fig. 1.
Fig. 3 is the flow chart for the Card read/write method based on recognition of face that present pre-ferred embodiments provide.
Fig. 4 is the sub-function module figure of image processing module in Fig. 2.
Fig. 5 is the sub-process figure that image processing module handles image.
【Specific implementation mode】
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
When an element was considered with another element " being connected ", it can be directly to another element or
It may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to this hair
The normally understood meaning of bright those skilled in the art is identical.Term used in the description of the invention herein
It is only for the purpose of describing specific embodiments and is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is the block diagram for the electronic equipment 100 that present pre-ferred embodiments provide.The present invention is real
The electronic equipment 100 applied in example may be, but not limited to, smart mobile phone, tablet computer etc..Electronic equipment 100 includes：Memory
110, processor 120, camera 130 and the read-write equipment 200 based on recognition of face.
It is directly or indirectly electrically connected between 130 each element of memory 110, processor 120 and camera, to realize number
According to transmission or interaction.For example, these elements can be realized electrically between each other by one or more communication bus or signal wire
Connection.The read-write equipment 200 based on recognition of face is stored in memory 110, the read-write equipment 200 based on recognition of face includes
At least one software function module that can be stored in the form of software or firmware (firmware) in memory 110.Processing
Device 120 is stored in software program and module in memory 110 by operation, as known based on face in the embodiment of the present invention
Other read-write equipment 200, to perform various functions application and data processing, that is, realize in the embodiment of the present invention based on people
The Card read/write method of face identification.
Wherein, memory 110 may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, memory 110 is for storing program, processor 120 receive execute instruction after execute program.It is appreciated that processing
Device 120 and other possible components can carry out the access of memory 110 under the control of storage control.
Processor 130 can be a kind of IC chip, the processing capacity with signal.Above-mentioned processor 130 can
To be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc..It can also be digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array
Arrange (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented
Or disclosed each method, step and logic diagram in the execution embodiment of the present invention.General processor can be microprocessor
Or the processor can also be any conventional processor etc..
Wherein, camera 130 is used to acquire the image information of face, and in the present embodiment, camera 130 is set to electricity
Sub- equipment 100 carries the side of screen, i.e. camera 130 is front camera.It is appreciated that battery apparatus 100 can also wrap
Other cameras are included, for example, being set to the camera of the side opposite with screen of electronic equipment 100, i.e. rear camera, are used for
Filmed image or landscape.
It is appreciated that structure shown in FIG. 1 is only to illustrate, electronic equipment 100 may also include it is more than shown in Fig. 1 or
Less component, or with the configuration different from shown in Fig. 1.Each component shown in Fig. 1 may be used hardware, software or its
Combination is realized.
Referring again to Fig. 2, for the function for the read-write equipment 200 based on recognition of face that present pre-ferred embodiments provide
Module map.Read-write equipment 200 based on recognition of face includes detecting module 210, transform coding module 220, image processing module
230, judgment module 240 and module for reading and writing 250.It is to be appreciated that above-mentioned each function module can deposit in form of software programs
It is stored in memory 110, and is executed by processor 120.In alternate embodiment, above-mentioned each function module is alternatively with specific work(
The hardware of energy, for example, burning has the chip of particular software application.
Above-mentioned each function module is described in detail with reference to Fig. 3.
As shown in figure 3, the flow chart of its reading/writing method based on recognition of face provided for present pre-ferred embodiments.Institute
It should be noted that the method for the present invention is not limited to the sequence of following step, and in other embodiment, method of the invention can
It can be split as several steps with a portion or one of step for only including following steps.
Step S21, detecting module 210 are used to, when detecting electronic equipment 100 and connecting with external read-write equipment, to image
First 130 start to acquire current face's image information.
It is appreciated that when electronic equipment 100 passes through USB (Universal Serial Bus, universal serial bus) and reading
When write device connects, detecting module 210 can detect connection signal by the USB interface of electronic equipment 100, at this point, detecting mould
Block 210 opens camera 130 to capture current face's image information.It should be noted that in the present embodiment, electronics is set
Standby 100 by taking mobile phone as an example, and external read-write equipment is by taking laptop as an example.
Step S22, transform coding module 220 is for converting to obtain initial graph collected human face image information
Picture, and coding is carried out to initial pictures and obtains digital image sequence to be transmitted.
Specifically, transform coding module 220 is connected with camera 130, first by 130 collected facial image of camera
Information changes into electric signal to obtain initial pictures by optical signal；Then initial pictures are encoded to obtain digital picture sequence
Row.Wherein, digital image sequence is the digital codings such as binary code, octal code or the heuristicimal code that can be transmitted.It can
To understand, it is optical signalling by the human face image information that camera 130 acquires, needs to be first converted into electric signal, then compiled
Code can be just transmitted.
Step S23, image processing module 230 is for being decoded to obtain initial graph the digital image sequence received
Picture, and initial pictures are pre-processed to obtain gray level image.
Specifically, image processing module 230 carries out gray processing and illumination compensation pretreatment to obtain gray scale to initial pictures
Image due to carrying out gray processing and illumination compensation pretreatment to initial pictures, and then can improve image in the present embodiment
Quality.
Whether the similarity of step S24, the human face image information that judgment module 240 is used to judge gray level image and prestore are big
In preset value；If the similarity of gray level image and the human face image information to prestore is more than preset value, switching command is generated, is gone forward side by side
Enter step S25；If the similarity of gray level image and the human face image information to prestore is not more than preset value, judgment module 240 is not
Send out any instruction.
It is appreciated that prestoring the human face image information of user in memory 110, therefore, can be schemed by current face
As information and the human face image information that prestores are compared and determine to whether active user is user.
Step S25, module for reading and writing 250 are used to, according to switching command, electronic equipment 100 is switched to readable WriteMode.
It is appreciated that if module 240 judges the phase of current face's image information and the human face image information to prestore judged
It is more than preset value like degree, then shows that current operation personnel operate for me, therefore, module for reading and writing 250 will be electric according to switching command
Sub- equipment 100 is switched to readable WriteMode, also that is, at this point, external read-write equipment can be written and read electronic equipment 100.It needs
Illustrate, under read-write mode, user can carry out electronic equipment 100 other operations, and can also limit can only be to electronics
Equipment 100 is written and read data (read data or deposit data), therefore, the read-write mode in present embodiment and electronic equipment
100 latching mode simultaneously differs, and the restriction of correlation function can be carried out according to the specific demand of user.
Read-write equipment 200, method and electronic equipment 100 provided by the present invention based on recognition of face, work as electronic equipment
100 with external equipment when being connected, and the read-write equipment 200 based on recognition of face passes through camera 130 and acquires current face's image letter
Breath, and when judging that current face's image information operates for user, electronic equipment 100 is just switched to read-write mode.If
Current face's image information is not user, can not be to electronic equipment even if electronic equipment 100 is in latching mode
100 are written and read operation, and then improve the safety of electronic equipment 100, avoid the privacy information of user because of electronic equipment
100 it is stolen and the case where reveal.
In order to improve the accuracy rate of the similarity of human face image information for judging gray level image and prestoring, referring again to Fig. 4,
It is the sub-function module figure of image processing module 230.Image processing module 230 includes pretreatment unit 231, feature extraction list
Member 232 and confirmation unit 233.Wherein, pretreatment unit 231 is for pre-processing to obtain gray-scale map initial pictures
Picture.
Above-mentioned each functional unit is described in detail with reference to Fig. 5.
Step S231, pretreatment unit 231 are additionally operable to carry out two layers of wavelet transformation to gray level image to obtain low-frequency approximation
Component and horizontal high frequency component.
Wavelet transformation is extended out by Fourier transformation, and multiresolution and multiscale analysis are capable of providing, it exists
Image processing and analyzing, computer vision, signal processing etc. have obtained application of result.Recognition of face side based on wavelet transformation
Face can be resolved into low-and high-frequency different piece, improve recognition accuracy by method by the multi-resolution decomposition of image.
Step S232, feature extraction unit 232 are used for second layer low-frequency approximation component and second layer horizontal high frequency component
Carry out the singular value decomposition feature extraction based on projection.
Step S233, feature extraction unit 232 are additionally operable to carry out base respectively to 4 eyebrow, eyes, nose, face regions
In the singular value decomposition feature extraction of projection.
In the present embodiment, to further enhance the validity of extraction feature, feature extraction unit 232 is additionally operable to choose
Eyebrow, eyes, nose, 4 positions of face local feature of the algebraic characteristic as face, i.e., respectively to this 4 regions difference
The singular value decomposition feature extraction based on projection is carried out, the number of extraction (compares the contribution rate of different faces according to 4 positions
Example 1:2:1:2) it determines.It is appreciated that in other embodiments, it can also be only to second layer low-frequency approximation component and the second layer
Horizontal high frequency component carries out the singular value decomposition feature extraction based on projection.
Step S234, confirmation unit 233, which is used to be used as according to the singular value of sequence extraction preset quantity from big to small, to be had
Imitate characteristic value.
In the present embodiment, preset quantity 16, also that is, 16 singular values of extraction are as validity feature value.Specifically,
The singular value decomposition based on projection will be carried out to second layer low-frequency approximation component and second layer horizontal high frequency component in step S232
Two groups of data that feature extraction obtains are ranked up preceding 16 singular values to be sorted from big to small as validity feature value.?
Can also be that will be carried out to second layer low-frequency approximation component and second layer horizontal high frequency component in step S232 in other embodiment
Two groups of data that singular value decomposition feature extraction based on projection obtains, in conjunction in step S233 to eyebrow, eyes, nose, mouth
Bar 4 regions carry out one group of data that the singular value decomposition feature extraction based on projection obtains respectively, to three groups of data carry out from
Small sequence is arrived greatly obtains preceding 16 singular values as validity feature value.16 validity feature values of the judgment module 240 according to extraction
It scans for matching with the validity feature data template of the facial image of the user to prestore and compare, and then realize current face's image
Judge with the similarity mode for the facial image that prestores.In present embodiment, whole and part singular value decomposition is on the one hand used
Feature is combined, and is on the other hand fully applied the horizontal direction characteristic of human face five-sense-organ, is extracted wavelet field horizontal direction high frequency figure
Then the singular value features of picture fully merge 3 groups of features, efficiently extract out the most effective algebraic characteristic of the reflection image,
Further improve the discrimination of face.
It should be noted that judgment module 240 is used for the validity feature value pair based on preset quantity in the present embodiment
Gray level image and the similarity of the human face image information to prestore are judged.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of read-write equipment based on recognition of face is applied in electronic equipment, the electronic equipment includes camera；It is special
Sign is that the read-write equipment based on recognition of face includes：
Detecting module, for when detecting the electronic equipment and being connect with external read-write equipment, by the camera start with
Acquire current face's image information；
Transform coding module, for being converted to collected human face image information to obtain initial pictures, and to described first
Beginning image carries out coding and obtains digital image sequence to be transmitted；
Image processing module, for being decoded to the digital image sequence received to obtain the initial pictures, and to institute
Initial pictures are stated to be pre-processed to obtain gray level image；
Whether the similarity of judgment module, the human face image information for judging the gray level image and prestoring is more than preset value,
And when the similarity of the gray level image and the human face image information to prestore is more than preset value, generate switching command；
And module for reading and writing, for according to the switching command, the electronic equipment to be switched to readable WriteMode.
2. the read-write equipment based on recognition of face as described in claim 1, which is characterized in that described image processing module packet
It includes：
Pretreatment unit, for carrying out two layers of wavelet transformation to the gray level image to obtain low-frequency approximation component and horizontal high-frequent
Component；
Feature extraction unit, for carrying out second layer low-frequency approximation component and second layer horizontal high frequency component based on the strange of projection
Different value characteristics of decomposition extraction；
And confirmation unit, for extracting the singular value of preset quantity according to sequence from big to small as validity feature value.
3. the read-write equipment based on recognition of face as claimed in claim 2, which is characterized in that the feature extraction unit is also used
In carrying out the singular value decomposition feature extraction based on projection respectively to 4 eyebrow, eyes, nose and face regions.
4. the read-write equipment based on recognition of face as described in claim 1, which is characterized in that the transform coding module will adopt
The human face image information collected changes into electric signal to obtain the initial pictures by optical signal.
5. the read-write equipment based on recognition of face as described in claim 1, which is characterized in that described image processing module is used for
Gray processing and illumination compensation pretreatment are carried out to obtain gray level image to the initial pictures.
6. a kind of Card read/write method based on recognition of face is applied in electronic equipment, the electronic equipment includes camera；
It is characterized in that, the Card read/write method based on recognition of face includes the following steps：
When detecting the electronic equipment and being connect with external read-write equipment, the camera is started to acquire current face's figure
As information；
Collected human face image information is converted to obtain initial pictures, and coding acquisition is carried out to the initial pictures
Digital image sequence is to be transmitted；
The digital image sequence received is decoded to obtain the initial pictures, and the initial pictures are located in advance
Reason is to obtain gray level image；
Whether the similarity for the human face image information for judging the gray level image and prestoring is more than preset value, and works as the gray-scale map
When the similarity of picture and the human face image information to prestore is more than preset value, switching command is generated；
According to the switching command, the electronic equipment is switched to readable WriteMode.
7. the Card read/write method based on recognition of face as claimed in claim 6, which is characterized in that described " to described initial
Image is pre-processed to obtain gray level image " step further include following steps：
Two layers of wavelet transformation are carried out to obtain low-frequency approximation component and horizontal high frequency component to the gray level image；
The singular value decomposition feature extraction based on projection is carried out to second layer low-frequency approximation component and second layer horizontal high frequency component；
The singular value of preset quantity is extracted as validity feature value according to sequence from big to small.
8. the Card read/write method based on recognition of face as claimed in claim 7, which is characterized in that it is described according to from greatly to
The singular value of small sequence extraction preset quantity further includes following steps before the step as validity feature value：
Singular value decomposition feature extraction based on projection is carried out respectively to 4 eyebrow, eyes, nose and face regions.
9. the Card read/write method based on recognition of face as claimed in claim 6, which is characterized in that by collected face figure
As information changes into electric signal to obtain the initial pictures by optical signal.
10. a kind of electronic equipment, including camera, memory and processor；It is characterized in that, have in the memory as
The read-write equipment based on recognition of face described in any one of claim 1-5.
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| CN201810383156.0A CN108763893A (en) | 2018-04-26 | 2018-04-26 | Read-write equipment, method based on recognition of face and electronic equipment |
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| CN201810383156.0A CN108763893A (en) | 2018-04-26 | 2018-04-26 | Read-write equipment, method based on recognition of face and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749784A (en) * | 2019-08-05 | 2020-02-04 | 上海大学 | Line electricity stealing detection method based on electric power data wavelet analysis |
| CN116824673A (en) * | 2023-07-06 | 2023-09-29 | 广东迅扬科技股份有限公司 | Safety protection method and device for identifying user identity based on intelligent camera |
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