CN106548152A - Near-infrared three-dimensional face tripper - Google Patents
Near-infrared three-dimensional face tripper Download PDFInfo
- Publication number
- CN106548152A CN106548152A CN201610954349.8A CN201610954349A CN106548152A CN 106548152 A CN106548152 A CN 106548152A CN 201610954349 A CN201610954349 A CN 201610954349A CN 106548152 A CN106548152 A CN 106548152A
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- Prior art keywords
- infrared
- dimensional face
- liquid crystal
- crystal display
- display screen
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Classifications
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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
Abstract
The invention discloses a kind of near-infrared three-dimensional face tripper，Including liquid crystal display screen、Colour imagery shot、At least one near-infrared LED、At least two near-infrared camera modules、On ＆ off switch or/and home keys，Near-infrared LED and near-infrared camera module are arranged on liquid crystal display screen upper end or lower end，On ＆ off switch is arranged on the one side of liquid crystal display screen，Home keys are arranged on liquid crystal display screen lower end，Near-infrared camera module includes camera lens、Optical filter and sensitive chip，Near-infrared three-dimensional face tripper is also built-in with main control chip、First memory and the second bin，The three-dimensional face images of near-infrared gray scale are sent to main control chip by near-infrared camera lenses module，Main control chip by the three-dimensional face images of near-infrared gray scale be stored in first memory or second memory in near-infrared gray scale three-dimensional face template compare，When comparing consistent，Main control chip controls liquid crystal screen unlocks.The present invention can guarantee that the quick, convenient, accurate of unlocking manner, safety.
Description
Technical field
The present invention relates to intelligent terminal unblock field, more particularly to a kind of near-infrared three-dimensional face tripper.
Background technology
The existing unlocking manner to intelligent terminal generally has following several：First, using the mode of numerical ciphers
It is unlocked；Second, it is unlocked using the mode of fingerprint, that is, the fingerprint of user is previously stored in into intelligent terminal
In, when user is unlocked using fingerprint, when the fingerprint of user is with the fingerprint matching being stored in intelligent terminal, just
The intelligent terminal can be unlocked；3rd, it is unlocked by way of slip touch screen；4th, by gesture
Mode be unlocked, exactly when the gesture of user is matched with the gesture being stored in advance in intelligent terminal, it is possible to
The intelligent terminal is unlocked.The intelligent terminal being unlocked can be that mobile phone, panel computer or other intelligence are whole
End.As the face biological information of user is not added by traditional unlocking manner, so when anyone possesses right
During the unlocking manner of the intelligent terminal, the intelligent terminal can be opened, may be to the peace of intelligent terminal
It is unfavorable to cause entirely, so traditional unlocking manner is dangerous, there is a possibility that to cause information leakage.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided one kind can guarantee that unblock
The near-infrared three-dimensional face tripper of the safety of mode.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of near-infrared three-dimensional face unblock dress
Put, including liquid crystal display screen, colour imagery shot, at least one near-infrared LED, at least two near-infrared camera modules, on ＆ off switch or/
With home keys, the colour imagery shot is arranged on the upper end or lower end of the liquid crystal display screen, for autodyning and by the liquid crystal display screen
Display image, the near-infrared LED and near-infrared camera module are arranged at the upper end or lower end of the liquid crystal display screen, described to open
Key is arranged on the one side of the liquid crystal display screen, and the home keys are arranged on the lower end of the liquid crystal display screen, and the near-infrared is taken the photograph
As head mould group includes camera lens, optical filter and sensitive chip, the optical filter is arranged on the inside of the camera lens, and the camera lens is buckled in
On the sensitive chip, the near-infrared three-dimensional face tripper is also built-in with main control chip, the first bin and the second storage
Storage, first bin and the second bin are connected with the main control chip, and the sensitive chip gathers initial three-dimensional
Facial image, and after the visible ray in the initial three-dimensional facial image is filtered by the optical filter, it is described near red
The three-dimensional face images of the near-infrared gray scale are sent to the main control chip by epi mirror head mould group, and the main control chip will be described
The three-dimensional face images of near-infrared gray scale be stored in first bin or second memory in near-infrared gray scale it is three-dimensional
Face template is compared, and when comparison result is consistent, the main control chip controls the liquid crystal screen unlocks.
In near-infrared three-dimensional face tripper of the present invention, it is additionally provided with fingerprint key or/and return key or/and touches
Key is touched, the fingerprint key is arranged on the back side of the liquid crystal display screen or is integrated on the home keys, the return key or/and touch
Key is arranged on the lower end of the liquid crystal display screen.
In near-infrared three-dimensional face tripper of the present invention, by clicking, double-clicking or the multi-hit liquid crystal display screen
Mode or open the near-infrared by way of pressing the on ＆ off switch, home keys, fingerprint key, return key or membrane keyboard
LED, near-infrared camera module and colour imagery shot module.
In near-infrared three-dimensional face tripper of the present invention, in holding state, by opening infrared LED inspection
Survey face function or by the way of slip liquid crystal display screen waking up the infrared camera module, or wake up the infrared photography
Head mould group and colour imagery shot module, or first wake up the infrared camera module and wake up the colour imagery shot module again,
Or first wake up the colour imagery shot module and wake up the infrared camera module again.
In near-infrared three-dimensional face tripper of the present invention, in holding state, by voice initiated mode,
Vice activation mode, gesture Starting mode, action launching mode or posture Starting mode are waking up the infrared camera module
And near-infrared LED, or the infrared camera module and colour imagery shot are waken up, or first wake up the infrared photography head mould
Organize and wake up the colour imagery shot again, or first wake up the colour imagery shot and wake up the infrared camera module again.
In near-infrared three-dimensional face tripper of the present invention, the voice initiated mode includes clapping the hands, beats finger
Ring and blow a whistle, the vice activation mode includes that open sesame, Citrullus vulgariss open the door and Rhizoma Solani tuber osi.
In near-infrared three-dimensional face tripper of the present invention, one is opened up in the main control chip for carrying
For the Tee of secure operating environment.
In near-infrared three-dimensional face tripper of the present invention, the wavelength of the near infrared light be 780nm～
1500nm。
Implement the near-infrared three-dimensional face tripper of the present invention, have the advantages that：Due to being provided with liquid crystal display screen, coloured silk
Color camera module, near-infrared LED and near-infrared camera module, near-infrared three-dimensional face tripper are also built-in with master control
Chip, internal memory and hard disk, can be autodyned using colour imagery shot module or liquid crystal display image, near-infrared camera module
Collection initial three-dimensional facial image, and after will be seen that light is filtered, the three-dimensional face images of near-infrared gray scale are sent to into master control core
Piece, by the three-dimensional face images of near-infrared gray scale be stored in the first bin or second memory in near-infrared gray scale it is three-dimensional
Face template is compared, when comparison result is consistent, main control chip control liquid crystal screen unlocks, thus by the life of face
Thing characteristic information is added in unlocking manner, only be stored in the first bin or second memory in near-infrared gray scale three
Dimension face template corresponding user just successfully can unlock, so can guarantee that the safety of unlocking manner.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the external structure schematic diagram in near-infrared three-dimensional face tripper one embodiment of the present invention；
Fig. 2 is the internal structure schematic diagram of near-infrared three-dimensional face tripper in the embodiment；
Fig. 3 is the flow chart of image recognition in the embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In near-infrared three-dimensional face tripper embodiment of the present invention, the outside of its near-infrared three-dimensional face tripper
Structural representation is as shown in Figure 1.In the present embodiment, the near-infrared three-dimensional face tripper can be intelligent terminal, for example：Handss
Machine, panel computer etc..The internal structure schematic diagram of the near-infrared three-dimensional face tripper is as shown in Figure 2.In Fig. 1, this is near red
Outer three-dimensional face tripper includes that liquid crystal display screen 1, colour imagery shot 2, at least one near-infrared LED 3, at least two near-infrareds are taken the photograph
As head mould group 4, on ＆ off switch 5 or/and home keys 6, wherein, the number of near-infrared LED 3 can be two or more, and near-infrared is taken the photograph
As the number of head mould group 4 is two or more.Two near-infrared LEDs 3 are depicted as an example in Fig. 1, four are depicted
Near-infrared camera module 4.
In the present embodiment, colour imagery shot 2 is arranged on the upper end or lower end of liquid crystal display screen 1, for autodyning and by liquid crystal display screen 1
Display image, near-infrared LED 3 and near-infrared camera module 4 are arranged at the upper end or lower end of liquid crystal display screen 1, and on ＆ off switch 5 is arranged
On the one side of liquid crystal display screen 1, home keys 6 are arranged on the lower end of liquid crystal display screen 1, wherein, near-infrared camera module 4 includes mirror
Head, optical filter and sensitive chip (not shown), wherein, optical filter is arranged on the inside of camera lens, and camera lens is buckled in sensitive chip
On, Fig. 2 is referred to, the near-infrared three-dimensional face tripper is also built-in with main control chip 7, first memory 8 and the second storage
Device 9, main control chip 7 can be CPU or MCU etc., and first memory 8 and second memory 9 are connected with main control chip 7.It is worth
One is mentioned that, in the present embodiment, gathers user by two or more near-infrared LEDs 3 and near-infrared camera module 4
Near-infrared three-dimensional face images, generate near-infrared gray scale three-dimensional face template, and by the near-infrared gray scale three-dimensional face template
It is stored in first memory 8 or second memory 9, to carry out the comparison in later stage.
In the present embodiment, sensitive chip gathers the initial three-dimensional facial image of user, and initial three-dimensional facial image is led to
Cross optical filter and filter out visible ray, and allow near infrared light to pass through, that is to say, that initial three-dimensional facial image through optical filter it
Afterwards, visible light part therein is filtered out, and near infrared portion therein is retained, by the three-dimensional face figure of near-infrared gray scale
As being sent to camera lens, the three-dimensional face images of near-infrared gray scale are sent to main control chip 7, master control by near-infrared camera module 4
Chip 7 by the three-dimensional face images of near-infrared gray scale be stored in first memory 8 or second memory 9 in near-infrared gray scale
Three-dimensional face template is compared, and when comparison result is consistent, the control liquid crystal display screen 1 of main control chip 7 is unlocked.It is worth mentioning
It is that, in the present embodiment, the wavelength of near infrared light is 780nm～1500nm.
As everyone face biological information is different, by the near-infrared three-dimensional people for gathering the user
Face image, in being then stored in first memory 8 or second memory 9 as template, when will solve to intelligent terminal
When the three-dimensional face images of the near red gray scale of the user of lock are mismatched with near-infrared gray scale three-dimensional face template, then it is assumed that this is right
The user that intelligent terminal is unlocked does not have unblock authority, then unblock will fail, if will be unlocked to intelligent terminal
User near-infrared gray scale three-dimensional face images and near-infrared gray scale three-dimensional face template matching, then it is assumed that this will be to intelligence
The user that terminal is unlocked has unblock authority, then unblock will be successful.The present embodiment is believed by the biological characteristic by face
Breath (namely three-dimensional face images) is added in unlocking manner, only be stored in first memory 8 or second memory 9
The corresponding user of near-infrared gray scale three-dimensional face template just successfully can unlock, so can guarantee that the safety of unlocking manner.
The present embodiment illustrates the identification process of facial image by taking two near-infrared camera modules 4 as an example.In order to by two
Near-infrared camera module 4 makes a distinction, and the two near-infrared camera modules 4 are referred to as the first near-infrared shooting head mould
Group and the second near-infrared camera module.Recognition of face processing unit screens similarity in candidate collection A and candidate collection B first
Larger candidate target is retained, and candidate target conduct is chosen from the candidate target for retaining further according to predetermined rule then
Final recognition result.Its specific flow chart is as shown in Figure 3.
In Fig. 3, in step S501, the first near-infrared camera module and the second near-infrared camera module start respectively
Recognition of face is carried out, is gathered by the first near-infrared camera module and the second near-infrared camera module respectively in step S502
Facial image.By recognition of face processing unit in step S503 respectively to the first near-infrared camera module and the second near-infrared
The facial image of camera module collection is identified, and obtains two groups of recognition of face candidate collections A and candidate collection B, Yi Jihou
Similarity in selected works conjunction A and candidate collection B corresponding to each candidate target.
Assume that the candidate target number in set candidates A, candidate collection B is respectively m, n, candidate is chosen in step S504
In set A, similarity is predetermined more than second more than similarity in the candidate target and selection candidate collection B of the first predetermined threshold
The candidate target of threshold value is used as new candidate collection C.The candidate target that hypothesis is chosen from candidate collection A is m1, and m1≤
M, the candidate target chosen from candidate collection B are n1, and n1≤n.
In step S505, will belong to corresponding to same candidate target in m1+n1 candidate target of candidate collection C
Similarity is added summation, is then arranged to being added the similarity after suing for peace in descending order, that is, the similarity for obtaining candidate target is comprehensive
Close sequence.Preferably, be chosen at similarity it is integrated ordered in come the summed result of foremost, i.e. similarity and be added summation most
It is big to be worth corresponding candidate target as final recognition result, as shown in step S506.Wherein, in step S504, first is pre-
It is the value according to determined by the similarity of candidate target in candidate collection to determine threshold value and the second predetermined threshold.According to the first near-infrared
The difference of camera module and the second near-infrared camera module acquired image property, the first predetermined threshold can be equal to the
Two predetermined thresholds, they can also be different values certainly.
In the present embodiment, the near-infrared three-dimensional face tripper is additionally provided with fingerprint key or/and return key or/and membrane keyboard
(not shown), wherein, fingerprint key is arranged on the back side of liquid crystal display screen 1 or is integrated on home keys, return key or/and membrane keyboard
It is arranged on the lower end of liquid crystal display screen 1.
In the present embodiment, when near-infrared LED to be opened 3, near-infrared camera module 4 and colour imagery shot 2, unlatching
Mode has various.Can click, double-click or multi-hit liquid crystal display screen 1 by way of open near-infrared LED 3, near-infrared image head mould
Group 4 and colour imagery shot 2, it is also possible to opened by way of pressing on ＆ off switch 5, home keys 6, fingerprint key, return key or membrane keyboard
Near-infrared LED 3, near-infrared camera module 4 and colour imagery shot 2.So, user just can according to the hobby of oneself or oneself
Demand select corresponding opening ways, which is using more flexible.
In the present embodiment, in holding state, infrared camera module 4 and colour imagery shot 2 do not work, when someone exists
When rocking in face of near-infrared LED 3, infrared LED detection face function is may turn on.In the present embodiment, in holding state, can be with
Infrared camera module 4 is waken up by way of opening infrared LED and detecting face function, or wakes up infrared camera module
4 and colour imagery shot 2, or first wake up infrared camera module 4 and wake up colour imagery shot 2 again, or first wake up colored shooting
2 wake up infrared camera module 4 again.
It is of course also possible to use the mode of slip liquid crystal display screen is waking up infrared camera module 4, or wake up infrared photography
Head mould group 4 and colour imagery shot 2, or first wake-up infrared camera module 4 wakes up colour imagery shot 2 again, or first wake up color
Color photographic head 2 wakes up infrared camera module 4 again.
Certainly, user can also adopt other wake-up modes as the case may be.For example：In holding state, lead to
Cross voice initiated mode, vice activation mode, gesture Starting mode, action launching mode or posture Starting mode infrared to wake up
Camera module 4, or infrared camera module 4 and colour imagery shot 2 are waken up, or first wake up infrared camera module 4 again
Colour imagery shot 2 is waken up, or first wakes up colour imagery shot 2 and wake up infrared camera module 4 again.Tut Starting mode bag
Include and clap the hands, beat finger sound and blow a whistle, vice activation mode includes open sesame and Citrullus vulgariss open the door etc..By various wake-up modes,
The motility of wake-up can just be increased, and user can select corresponding wake-up mode according to the hobby of oneself or demand,
While giving user and bring enjoyment, while also enhancing the experience of user.
In the present embodiment, in order that the near-infrared three-dimensional face tripper works in a secure environment, in main control chip 7
In open up one for providing the Tee of security context.So ensure that the near-infrared three-dimensional face tripper works
In the case where safer environment is mutually compared.
In the present embodiment, in order to increase the safety in data transmission procedure, can be to the three-dimensional face of near-infrared gray scale
Image is sent to main control chip 7 after being encrypted.It is encrypted by the three-dimensional face images to near-infrared gray scale, it is possible to protect
Safety of the three-dimensional face images of the near-infrared gray scale in transmitting procedure is demonstrate,proved, makes the three-dimensional face images of near-infrared gray scale exist
It is not stolen in transmitting procedure or is not cracked.
In the present embodiment, there are many kinds to the mode that the three-dimensional face images of near-infrared gray scale are encrypted, can adopt
The mode for arranging encryption chip is encrypted, it is also possible to be encrypted by way of being not provided with encryption chip, for example：Work as setting
During encryption chip, encryption chip can be encapsulated in near-infrared camera module 4, or encryption chip and main control chip 7
It is arranged on same circuit board, or specified portions in AES is encrypted by encryption chip, that is, to encryption
In algorithm, pith is encrypted by encryption chip；When no encryption chip, directly by containing near infrared light three
The AES that dimension facial image is encrypted is stored in main control chip 7, first memory 8 or second memory 9.
It is noted that in the present embodiment, when by the three-dimensional face images containing near infrared light and near-infrared three-dimensional people
When face template is compared, when there is Tee, compare in Tee, Tee is compared in main control chip 7；There is encryption core in circuit board
Piece, compare in encryption chip.
In a word, in the present embodiment, the three-dimensional face images of the near-infrared gray scale for camera lens being gathered are sent to main control chip 7
(or encryption then be sent to main control chip 7), main control chip 7 by the three-dimensional face images of near-infrared gray scale be previously stored in first
Near-infrared three-dimensional face template in memorizer 8 or second memory 9 is compared, if comparison result is consistent, to liquid
Brilliant screen 1 is unlocked.By being identified to three-dimensional face images, it is ensured that the safety of unlocking manner.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of near-infrared three-dimensional face tripper, it is characterised in that including liquid crystal display screen, colour imagery shot, at least one near
Infrared LED, at least two near-infrared camera modules, on ＆ off switch or/and home keys, the colour imagery shot are arranged on the liquid
The upper end or lower end of brilliant screen, for autodyning and by the liquid crystal display displays images, the near-infrared LED and near-infrared photographic head
Module is arranged at the upper end or lower end of the liquid crystal display screen, and the on ＆ off switch is arranged on the one side of the liquid crystal display screen, described
Home keys are arranged on the lower end of the liquid crystal display screen, and the near-infrared camera module includes camera lens, optical filter and sensitive chip, institute
The inside that optical filter is arranged on the camera lens is stated, the camera lens is buckled on the sensitive chip, the near-infrared three-dimensional face solution
Locking device is also built-in with main control chip, the first bin and the second bin, first bin and the second bin with
The main control chip connection, the sensitive chip gather initial three-dimensional facial image, and by the initial three-dimensional facial image
Visible ray filtered by the optical filter after, the near-infrared camera lenses module is by the three-dimensional face of the near-infrared gray scale
Image is sent to the main control chip, the main control chip by the three-dimensional face images of the near-infrared gray scale be stored in it is described
Near-infrared gray scale three-dimensional face template in first bin or second memory is compared, when comparison result is consistent,
The main control chip controls the liquid crystal screen unlocks.
2. near-infrared three-dimensional face tripper according to claim 1, it is characterised in that be additionally provided with fingerprint key or/and
Return key or/and membrane keyboard, the fingerprint key are arranged on the back side of the liquid crystal display screen or are integrated on the home keys, described to return
Return key or/and membrane keyboard is arranged on the lower end of the liquid crystal display screen.
3. near-infrared three-dimensional face tripper according to claim 2, it is characterised in that by clicking, double-clicking or many
Hit the mode of the liquid crystal display screen or opened by way of pressing the on ＆ off switch, home keys, fingerprint key, return key or membrane keyboard
The near-infrared LED, near-infrared camera module and colour imagery shot module.
4. the near-infrared three-dimensional face tripper according to claims 1 to 3 any one, it is characterised in that standby
During state, open infrared LED and detect face function or using slip liquid crystal display screen by way of waking up the infrared camera
Module, or the infrared camera module and colour imagery shot module are waken up, or first wake up the infrared camera module
The colour imagery shot module is waken up again, or first wakes up the colour imagery shot module wake up the infrared photography head mould again
Group.
5. the near-infrared three-dimensional face tripper according to claims 1 to 3 any one, it is characterised in that standby
During state, by voice initiated mode, vice activation mode, gesture Starting mode, action launching mode or posture Starting mode
To wake up the infrared camera module and near-infrared LED, or the infrared camera module and colour imagery shot are waken up, or
Person first wakes up the infrared camera module and wakes up the colour imagery shot again, or first wakes up the colour imagery shot and wake up again
The infrared camera module.
6. the near-infrared three-dimensional face tripper according to claims 1 to 3 any one, it is characterised in that the sound
Sound Starting mode includes clapping the hands, beats finger sound and blow a whistle, and the vice activation mode includes that open sesame, Citrullus vulgariss open the door and Rhizoma Solani tuber osi.
7. near-infrared three-dimensional face tripper according to claim 1, it is characterised in that open up in the main control chip
There is a Tee for providing secure operating environment.
8. near-infrared three-dimensional face tripper according to claim 1, it is characterised in that the wavelength of the near infrared light
For 780nm～1500nm.
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