CN208874676U - A kind of image acquiring device, identity recognition device and electronic equipment - Google Patents
A kind of image acquiring device, identity recognition device and electronic equipment Download PDFInfo
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- CN208874676U CN208874676U CN201821217800.9U CN201821217800U CN208874676U CN 208874676 U CN208874676 U CN 208874676U CN 201821217800 U CN201821217800 U CN 201821217800U CN 208874676 U CN208874676 U CN 208874676U
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Abstract
The utility model is suitable for field of photoelectric technology, provides a kind of image acquiring device comprising floodlight transmitting module, structured light module, receiving module and control module.The floodlight transmitting module is for emitting infrared floodlight to an object.The structured light module is for emitting patterned infrared structure light to the object.The receiving module is used to obtain by infrared floodlight that the object reflects to obtain the two dimensional image of the object, it is also used to obtain by infrared structure light that the object reflects to obtain the depth information of the object, and according to the two dimensional image and its depth information of the object, the 3-D image of the object is generated.The control module carries out time-sharing work for controlling the floodlight transmitting module and the structured light module.The utility model can improve the three-dimensional imaging effect under low light environment.The utility model also provides a kind of identity recognition device and electronic equipment.
Description
Technical field
The utility model belongs to field of photoelectric technology more particularly to a kind of image acquiring device, identity recognition device and electricity
Sub- equipment.
Background technique
Present three-dimensional imaging generally uses binocular vision technology to realize.Binocular vision is simulation human vision principle,
Use the method for the passive perceived distance of computer.The same object from two or more camera models is obtained in difference
Two dimensional image under visual angle, according to the matching relationship of pixel between two dimensional image, by principle of triangulation calculate pixel it
Between offset obtain the depth of view information of object, the reality between object and camera model is then calculated using depth of view information
Actual range between distance, the three-dimensional size and two o'clock of object, to obtain the 3-D image of object.But this method institute
The 3-D image of acquisition is all to be shot using extraneous natural light, therefore the imaging effect under low light environment is poor.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of image acquiring device, identity recognition device and
Electronic equipment, it is intended to can be improved the three-dimensional imaging effect under low light environment.
The utility model is realized in this way a kind of image acquiring device comprising floodlight transmitting module, structure light hair
Penetrate module, receiving module and control module.The floodlight transmitting module is for emitting infrared floodlight and throwing the infrared floodlight
It is incident upon an object.The structured light module is for emitting patterned infrared structure light, and by the infrared structure light
It is projected to the object.The receiving module is used to obtain described to obtain by the infrared floodlight that the object is reflected
The two dimensional image of object is also used to obtain by infrared structure light that the object is reflected to obtain the object
Depth information, and according to the two dimensional image and its depth information of the object, generate the 3-D image of the object.Institute
It states control module and carries out time-sharing work for controlling the floodlight transmitting module and the structured light module.
In some embodiments, the floodlight transmitting module includes the first infrared laser and the first Beam former.
First Beam former is used to the infrared light that first infrared laser is emitted being modulated into the infrared floodlight.
The structured light module includes the second infrared laser and the second Beam former.Second Beam former is used for
The infrared light that second infrared laser is emitted is modulated into the patterned infrared structure light.
In some embodiments, first Beam former has diffusion grating, for infrared sharp by described first
The infrared light that light device is emitted is diffused.Second Beam former has diffraction grating, is used for second infrared laser
The infrared light that device is emitted carries out diffraction.
In some embodiments, first Beam former and second Beam former are integrated in same
On optical lens.First infrared laser and second infrared laser are integrated dot matrix on the same chip
Light source, wherein form first infrared laser with array light source corresponding to first Beam former, with described the
Array light source corresponding to two Beam formers forms second infrared laser.First infrared laser with it is described
Second infrared laser is controlled whether lighting by the driver on the chip.
In some embodiments, the array light source random distribution of first infrared laser.Described second is infrared sharp
The array light source of light device is uniformly distributed according to certain rules.
In some embodiments, first Beam former is located at the central area of the optical lens.Described
Two Beam formers are located at the fringe region that the central area is surrounded on the optical lens.
In some embodiments, described image acquisition device further includes Distance-sensing module.The Distance-sensing module
For sensing the distance between itself and the object.The control module is also used to be sensed when the Distance-sensing module
When the distance arrived is less than or equal to a preset distance, controls the floodlight transmitting module, the structured light module and described connect
Module is received to start to work.
In some embodiments, the Distance-sensing module includes point light source and receiver, and the point light source is for emitting
Light is to object, and the receiver is for receiving by the reflected light of object, wherein the light of point light source transmitting
Be diffused into certain angle and form a circular conical surface, the Distance-sensing module using it is winged when range measurement principle pass come sensing distance
Feel the distance between module and object.
In some embodiments, the point light source and the receiver are arranged on the same substrate.
The utility model additionally provides a kind of identity recognition device comprising identification module and above-mentioned image obtain dress
It sets.3-D image of the identification module for the object according to acquired in described image acquisition device carries out identity
Identification.
In some embodiments, the identity recognition device includes face authentification device.
The utility model additionally provides a kind of electronic equipment, including above-mentioned identity recognition device.The electronic equipment is used
In corresponding to whether execute corresponding function according to the recognition result of the identity recognition device.
In some embodiments, corresponding function includes unlock, payment, starts in the application program prestored
Any one or a few.
Compared with prior art, beneficial effect is the utility model: can be improved the three-dimensional imaging effect under low light environment
Fruit.
Detailed description of the invention
Fig. 1 is the functional block diagram for the image acquiring device that the utility model first embodiment provides.
Fig. 2 and Fig. 3 is the side view of the floodlight transmitting module of Fig. 1 and two kinds of implementations of structured light module.
Fig. 4 is the functional block diagram for the identity recognition device that the utility model second embodiment provides.
Fig. 5 is the structural schematic diagram for the electronic equipment that the utility model 3rd embodiment provides.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to solve
The utility model is released, is not used to limit the utility model.
Following disclosure provides many different embodiments or example is used to realize the different structure of the application.For
Simplified disclosure herein hereinafter to the component of specific examples and is set for describing.Certainly, they are merely examples,
And purpose does not lie in limitation the application.In addition, the application can in different examples repeat reference numerals and/or reference word
Mother, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments and/or set it
Between relationship.
Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner
In formula.In the following description, many details are provided to provide and fully understand to presently filed embodiment.So
And one of ordinary skill in the art would recognize that, without one or more in the specific detail, or using other structures,
Constituent element etc. can also practice the technical solution of the application.In other cases, be not shown in detail or describe known features or
Operation is to avoid fuzzy the application.
As shown in Figure 1, a kind of image acquiring device 100 provided by the utility model comprising floodlight transmitting module
10, structured light module 20, receiving module 30, control module 40 and Distance-sensing module 50.
The floodlight transmitting module 10 is for emitting infrared floodlight and by the infrared flood projection a to object 200.
The structured light module 20 is for emitting patterned infrared structure light, and by the infrared structure light projection to described
Object 200.
In the present embodiment, in conjunction with shown in Fig. 2 and Fig. 3, the floodlight reflecting module 10 includes the first infrared laser 11
And first Beam former 12.There is diffusion grating on first Beam former 12, be used for first infrared laser
The infrared light that device 11 is emitted is diffused, to be modulated into the infrared floodlight.The structured light module 20 includes second
Infrared laser 21 and the second Beam former 22.There is diffraction grating, being used for will be described on second Beam former 22
The infrared light that second infrared laser 21 is emitted carries out diffraction, to be modulated into the patterned infrared structure light.
So, ground is changed, the floodlight transmitting module 10 and the structured light module 20 are also not limited to above-mentioned knot
Structure, can also be other suitable structures, for example, the second Beam former 22 of the structured light module 20 for example including
For mask pattern element, the light beam that second infrared laser 21 issues after the mask pattern element by becoming encoding
Structure light, and project to object.
In addition, the floodlight transmitting module 10 and the structured light module 20 are also not limited to transmitting infrared light,
It can be the non-visible light of the suitable wavelengths such as ultraviolet light.
As shown in Fig. 2, the floodlight transmitting module 10 and the structured light module 20 are for example independently of one another, and two
The spacing distance very little of person, or even be connected with each other.Or the floodlight transmitting module 10 and the structured light module
20 for example spaced apart settings.Position between the floodlight transmitting module 10 and the structured light module 20 is set
Relationship is set, the application is simultaneously not particularly limited.First infrared laser 11 and first infrared laser 21 can be
Semiconductor edge-emitting laser device (Edge Emitting Laser), vertical cavity surface-emitting laser (Vertical
Cavity Surface Emitting Laser, VCSEL) or other types of laser emitter.
As shown in figure 3, the floodlight transmitting module 10 can also be integrated with the structured light module 20.Such as
First Beam former 12 and second Beam former 22 are integrated on the same optical lens；Described first is red
Outer laser 11 and second infrared laser 21 are integrated array light source on the same chip, wherein with described the
Array light source corresponding to one Beam former 12 forms first infrared laser 11, with second Beam former
Array light source corresponding to 22 forms second infrared laser 12.First infrared laser 11 and described second red
Outer laser 21 is controlled whether lighting by the driver on the chip.In the present embodiment, described first is infrared
The array light source of the array light source random distribution of laser 11, second infrared laser 21 uniformly divides according to certain rules
Cloth；First Beam former 12 is located at the central area of the optical lens, and second Beam former 22 is located at institute
State the fringe region that the central area is surrounded on optical lens.
The receiving module 30 is used to obtain by infrared floodlight that the object 200 is reflected to obtain the target
The two dimensional image of object 200 is also used to obtain by infrared structure light that the object 200 is reflected to obtain the object
200 depth information, and according to the two dimensional image and its depth information of the object 200, generate the object 200
3-D image.
The control module 40 is used to control the floodlight transmitting module 10 and the structured light module 20 is divided
When work.
The Distance-sensing module 50 is also used to be sensed for sensing the distance between itself and the object 200
To distance be compared with a preset distance, and comparison result is passed into the control module 40.
The distance that the control module 40 is also used to be sensed when the Distance-sensing module 50 is less than or equal to a pre- spacing
From range when, it is predetermined to control the floodlight transmitting module 10, the structured light module 20 and 30 case of the receiving module
Mode is started to work.
The preassigned pattern is for example: the control module 40 controls the floodlight transmitting module 10 prior to the structure light
Transmitting module 20 works, or the control structured light module 20 works prior to the floodlight transmitting module 10.
The Distance-sensing module 50 includes point light source and receiver, which is somebody's turn to do for emitting light to object
Receiver is for receiving by the reflected light of object, wherein the light of point light source transmitting is diffused into certain angle
Form a circular conical surface, the Distance-sensing module using it is winged when range measurement principle come sensing distance sensing module and object it
Between distance.
Preferably, the point light source and the receiver are arranged on the same substrate.To reduce the body of the distance emitter
Product.
As shown in figure 4, a kind of identity recognition device 300 provided by the utility model second embodiment comprising identification
Mould group 310 and above-mentioned image acquiring device 100.
The identification mould group 310 is used for three of the object 200 according to acquired in described image acquisition device 100
It ties up image and carries out identification.
The identity recognition device 300 is, for example, face authentification device.So, the identity recognition device 300 can also be used for
Identify other proper sites of human body, or even other organisms or inorganic matter for identification.
Further, as shown in figure 5, the utility model 3rd embodiment provide a kind of electronic equipment 400, such as but
It is not limited to the suitable classes such as consumer electrical product, household formula electronic product, vehicular electronic product, financial terminal product
The electronic product of type.Wherein, consumer electrical product for example but is not limited to mobile phone, tablet computer, laptop, desktop
Display, computer all-in-one machine etc..Household formula electronic product for example but is not limited to intelligent door lock, TV, refrigerator, wearable sets
It is standby etc..Vehicular electronic product for example but is not limited to automatic navigator, vehicle-carrying DVD etc..Financial terminal product for example but not office
It is limited to ATM machine, terminal of self-service transacting business etc..The electronic equipment 400 includes above-mentioned identity recognition device 300.It is described
Whether electronic equipment 400 executes corresponding function according to the identification result of the identity recognition device 300 to correspond to.Institute
State corresponding function and be such as, but not limited to include unlock, payment, in the application program that prestores of starting any one or it is several
Kind.
In the present embodiment, it is illustrated so that electronic equipment 400 is mobile phone as an example.The mobile phone is, for example, to shield comprehensively
Mobile phone, the positive top of mobile phone is for example arranged in the identity recognition device 300.Certainly, the mobile phone is also not restricted to
Comprehensive screen mobile phone.
For example, the screen for lifting mobile phone or touch mobile phone can act as wake-up when user needs to boot up unlock
The effect of the identity recognition device 300.After the identity recognition device 300 is waken up, identify in front of the mobile phone
When user is legal user, then lock screen is solved.
Compared with prior art, the image acquiring device of the utility model, identity recognition device and electronic equipment,
By the infrared floodlight of transmitting and infrared structure light under low light environment, the two-dimensional image information and depth information of object are obtained, and
The 3-D image of object is generated, therefore can be improved the three-dimensional imaging effect under low light environment.Further, due to this reality
With the novel depth information for obtaining object by way of emitting infrared structure light, two cameras of setting are not needed, can be had
Effect reduces volume, reduces production cost.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the application.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (11)
1. a kind of image acquiring device, which is characterized in that it includes floodlight transmitting module, structured light module, receiving module
And control module, the floodlight transmitting module is for emitting infrared floodlight and by the infrared flood projection a to object；Institute
Structured light module is stated for emitting patterned infrared structure light, and by the infrared structure light projection to the target
Object；The receiving module is used to obtain by infrared floodlight that the object is reflected to obtain the X-Y scheme of the object
Picture is also used to obtain by infrared structure light that the object is reflected to obtain the depth information of the object, and according to
The two dimensional image and its depth information of the object, generate the 3-D image of the object；The control module is for controlling
It makes the floodlight transmitting module and the structured light module carries out time-sharing work.
2. image acquiring device as described in claim 1, which is characterized in that the floodlight transmitting module includes first infrared sharp
Light device and the first Beam former, first Beam former are used for the infrared light for being emitted first infrared laser
It is modulated into the infrared floodlight；The structured light module includes the second infrared laser and the second Beam former, described
Second Beam former is used to the infrared light that second infrared laser is emitted being modulated into the patterned infrared knot
Structure light.
3. image acquiring device as claimed in claim 2, which is characterized in that first Beam former has diffusion light
Grid, the infrared light for being emitted first infrared laser are diffused；Second Beam former has diffraction grating,
Infrared light for being emitted second infrared laser carries out diffraction.
4. image acquiring device as claimed in claim 2, which is characterized in that first Beam former and second light
Beamformer is integrated on the same optical lens；First infrared laser and second infrared laser are to be integrated in
Array light source on the same chip, wherein red with the composition of array light source corresponding to first Beam former described first
Outer laser forms second infrared laser with array light source corresponding to second Beam former；Described first
Infrared laser is controlled whether lighting by the driver on the chip with second infrared laser.
5. image acquiring device as claimed in claim 4, which is characterized in that the array light source of first infrared laser with
Machine distribution, the array light source of second infrared laser are uniformly distributed according to certain rules.
6. image acquiring device as claimed in claim 5, which is characterized in that first Beam former is located at the optics
The central area of lens, second Beam former are located at the marginal zone that the central area is surrounded on the optical lens
Domain.
7. image acquiring device as claimed in any one of claims 1 to 6, which is characterized in that described image acquisition device further includes
Distance-sensing module, the Distance-sensing module is for sensing the distance between itself and the object, and the control module is also
When distance for being sensed when the Distance-sensing module is less than or equal to a preset distance, the floodlight transmitting mould is controlled
Block, the structured light module and the receiving module are started to work by preassigned pattern.
8. image acquiring device as claimed in claim 7, which is characterized in that the Distance-sensing module includes point light source and connect
Device is received, for emitting light to object, which is used to receive by object reflected light the point light source,
In, the light of point light source transmitting is diffused into certain angle and forms a circular conical surface, when the Distance-sensing module is using flying
Range measurement principle comes the distance between sensing distance sensing module and object.
9. image acquiring device as claimed in claim 8, which is characterized in that the point light source and the receiver are arranged in same base
On plate.
10. a kind of identity recognition device, which is characterized in that it includes identification module and of any of claims 1-9
Image acquiring device, the identification module are used for the 3-D image of the object according to acquired in described image acquisition device
Carry out identification.
11. a kind of electronic equipment, which is characterized in that including identity recognition device as claimed in claim 10, or including such as
Image acquiring device described in any one of claim 1-9.
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| CN201821217800.9U CN208874676U (en) | 2018-07-30 | 2018-07-30 | A kind of image acquiring device, identity recognition device and electronic equipment |
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| CN201821217800.9U CN208874676U (en) | 2018-07-30 | 2018-07-30 | A kind of image acquiring device, identity recognition device and electronic equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110213559A (en) * | 2019-05-24 | 2019-09-06 | 深圳市光鉴科技有限公司 | Display device and electronic equipment with 3D camera module |
| CN111598072A (en) * | 2020-05-12 | 2020-08-28 | 深圳阜时科技有限公司 | Image sensing device and electronic apparatus |
| CN111626282A (en) * | 2020-05-12 | 2020-09-04 | 深圳阜时科技有限公司 | Image sensing device and electronic apparatus |
| CN112066907A (en) * | 2019-06-11 | 2020-12-11 | 深圳市光鉴科技有限公司 | Depth imaging device |
| CN112307450A (en) * | 2019-07-24 | 2021-02-02 | 云从科技集团股份有限公司 | Access control system and login device based on in vivo detection |
| WO2021114497A1 (en) * | 2019-12-12 | 2021-06-17 | 深圳奥比中光科技有限公司 | Time-of-flight-based depth camera and three-dimensional imaging method |
| CN114779487A (en) * | 2022-04-28 | 2022-07-22 | 深圳市安思疆科技有限公司 | Optical device and optical system |
| CN115248505A (en) * | 2021-07-02 | 2022-10-28 | 深圳市安思疆科技有限公司 | Projection module, imaging device and terminal equipment |
| US11828587B2 (en) | 2020-06-19 | 2023-11-28 | Guangzhou Luxvisions Innovation Technology Limited | 3D sensing device, lighting module and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110213559A (en) * | 2019-05-24 | 2019-09-06 | 深圳市光鉴科技有限公司 | Display device and electronic equipment with 3D camera module |
| CN112066907A (en) * | 2019-06-11 | 2020-12-11 | 深圳市光鉴科技有限公司 | Depth imaging device |
| CN112066907B (en) * | 2019-06-11 | 2022-12-23 | 深圳市光鉴科技有限公司 | Depth imaging device |
| CN112307450A (en) * | 2019-07-24 | 2021-02-02 | 云从科技集团股份有限公司 | Access control system and login device based on in vivo detection |
| CN112307450B (en) * | 2019-07-24 | 2024-03-08 | 云从科技集团股份有限公司 | Access control system and login equipment based on living body detection |
| WO2021114497A1 (en) * | 2019-12-12 | 2021-06-17 | 深圳奥比中光科技有限公司 | Time-of-flight-based depth camera and three-dimensional imaging method |
| CN111598072A (en) * | 2020-05-12 | 2020-08-28 | 深圳阜时科技有限公司 | Image sensing device and electronic apparatus |
| CN111626282A (en) * | 2020-05-12 | 2020-09-04 | 深圳阜时科技有限公司 | Image sensing device and electronic apparatus |
| US11828587B2 (en) | 2020-06-19 | 2023-11-28 | Guangzhou Luxvisions Innovation Technology Limited | 3D sensing device, lighting module and control method thereof |
| CN115248505A (en) * | 2021-07-02 | 2022-10-28 | 深圳市安思疆科技有限公司 | Projection module, imaging device and terminal equipment |
| CN115248505B (en) * | 2021-07-02 | 2024-05-07 | 深圳市安思疆科技有限公司 | Projection module, imaging device and terminal equipment |
| CN114779487A (en) * | 2022-04-28 | 2022-07-22 | 深圳市安思疆科技有限公司 | Optical device and optical system |
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