CN106791441A - Control method, control device and electronic installation - Google Patents
Control method, control device and electronic installation Download PDFInfo
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- CN106791441A CN106791441A CN201710051394.7A CN201710051394A CN106791441A CN 106791441 A CN106791441 A CN 106791441A CN 201710051394 A CN201710051394 A CN 201710051394A CN 106791441 A CN106791441 A CN 106791441A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
Abstract
The invention discloses a kind of control method, for controlling electronic installation, the electronic installation to include imaging device, control method includes：The multiframe cache image that treatment imaging device is exported is to recognize whether human face region；Human face region is divided into many sub-regions when there is human face region；Calculate the focus value per sub-regions；Focus value to every sub-regions is weighted to obtain new focus value；Focused according to new focus value.The invention also discloses a kind of control device and electronic installation.The control method of embodiment of the present invention, control device and electronic installation carry out subregional weighted calculation with the difference between the focus value for increasing each two field picture to the image containing human face region shot under half-light environment, so as to lift the accuracy of focusing.
Description
Technical field
The present invention relates to the technology of focusing, more particularly to a kind of control method, control device and electronic installation.
Background technology
The scene relatively low for some contrasts such as half-light or backlight, focus value (Focus in contrast formula focusing method
Value variation tendency) is less obvious, causes possibly to find the maximum point of focus value so as to realize focusing.
The content of the invention
Embodiments of the invention provide a kind of control method, control device and electronic installation.
The control method of embodiment of the present invention, for controlling electronic installation, the electronic installation to include imaging device, institute
Control method is stated to comprise the following steps：
The multiframe cache image of the imaging device output is processed to recognize whether human face region；
The human face region is divided into many sub-regions when there is the human face region；
Calculate the focus value of each subregion；
Focus value to subregion each described is weighted to obtain new focus value；With
Focused according to the new focus value.
The control device of embodiment of the present invention, for controlling electronic installation, the control device to include identification module, draw
Sub-module, computing module and Focusing module.The identification module is used to process the multiframe cache image of the imaging device output
To recognize whether human face region；The division module is used to divide the human face region when there is the human face region
It is many sub-regions；The computing module is used to calculate the focus value of each subregion；It is right that the computing module is additionally operable to
The focus value of each subregion is weighted to obtain new focus value；The Focusing module is used for according to described new poly-
Coke number is focused.
The electronic installation of embodiment of the present invention includes imaging device and above-mentioned control device.The imaging device and institute
State control device electrical connection.
The control method of embodiment of the present invention, control device and electronic installation in the image under shooting half-light environment,
Zoning is carried out to the image containing human face region and the focus value to regional is calculated using different weighted values,
So as to the difference between the focus value for increasing each two field picture, the accuracy of focusing is lifted.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to implementation method is combined
Obtain substantially and be readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet of the control method of embodiment of the present invention；
Fig. 2 is the high-level schematic functional block diagram of the electronic installation of embodiment of the present invention；
Fig. 3 is the schematic diagram in kind of the electronic installation of embodiment of the present invention；
Fig. 4 is the schematic diagram of the focus value curve of embodiment of the present invention；
Fig. 5 is the schematic flow sheet of the control method of some implementation methods of the invention；
Fig. 6 is the high-level schematic functional block diagram of the electronic installation of some implementation methods of the invention；
Fig. 7 is the schematic flow sheet of the control method of some implementation methods of the invention；
Fig. 8 is the high-level schematic functional block diagram of the electronic installation of some implementation methods of the invention；
Fig. 9 is the schematic flow sheet of the control method of some implementation methods of the invention；
Figure 10 is the high-level schematic functional block diagram of the electronic installation of some implementation methods of the invention；
Figure 11 is the schematic flow sheet of the control method of some implementation methods of the invention；
Figure 12 is the high-level schematic functional block diagram of the imaging device of some implementation methods of the invention；With
Figure 13 is the high-level schematic functional block diagram of the electronic installation of some implementation methods of the invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the implementation method is shown in the drawings, wherein ad initio
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The implementation method for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
Refer to Fig. 1 to 3, the control method of embodiment of the present invention, for controlling electronic installation 100, control method bag
Include following steps：
S11：The multiframe cache image that treatment imaging device 20 is exported is to recognize whether human face region；
S13：The human face region is divided into many sub-regions when there is the human face region；
S15：Calculate the focus value of each subregion；
S17：Focus value to subregion each described is weighted to obtain new focus value；With
S19：Focused according to the new focus value.
The control method of embodiment of the present invention can be realized by control device 10.Control device 10 include identification module 11,
Division module 13, computing module 15 and Focusing module 17.Step S1 can be realized that step S13 can be by drawing by identification module 11
Sub-module 13 realizes that step S15 can be realized by computing module 15, and step S17 can also be realized by computing module 15, step
S19 can be realized by Focusing module 17.
In other words, identification module 11 is used to process the multiframe cache image of the output of imaging device 20 to recognize whether
Human face region；Division module 13 is used to that the human face region to be divided into many sub-regions when there is the human face region；Meter
Calculating module 15 is used to calculate the focus value of each subregion；Computing module 15 is additionally operable to the focusing to subregion each described
Value is weighted to obtain new focus value；Focusing module 17 is used to be focused according to the new focus value.
The control device 10 of embodiment of the present invention is applied to electronic installation 100.In other words, electronic installation 100 includes
Control device 10.The control device 10 of embodiment of the present invention also includes imaging device 20.Wherein, control device 10 and imaging is filled
Put 20 electrical connections.
In some embodiments, electronic installation 100 includes mobile phone, panel computer, Intelligent bracelet, intelligent watch, intelligence
The helmet, intelligent glasses, notebook computer etc., are not intended to be limited in any herein.In a particular embodiment of the present invention, electronic installation
100 is mobile phone.
In some embodiments, imaging device 20 includes front camera and/or rear camera.
Refer to Fig. 4, it will be understood that when electronic installation 100 shoots the facial image under half-light or backlight environment, due to whole
The brightness of body image is dark, thus focus value i.e. FV (Focus Value) value of multiframe cache image counted during focusing it
Between difference it is smaller (as shown in dashed curve in Fig. 4), so as to be difficult to find that a high position for the curve of focus value is turned in focus process
Point is the maximum point of focus value curve, leads to not accurate focusing.The control method of embodiment of the present invention is by facial image
Behind zoning, the focus value to each region is calculated using different weighted values, so as to increase the focusing of each two field picture
Difference (as shown in block curve in Fig. 4) between value, so that electronic installation 100 can accurately find focus value in focus process
The upper inflection point of curve, lifting focusing definition, realizes accurate focusing.
Fig. 5 is referred to, in some embodiments, step S17 is weighted meter to the focus value of subregion each described
Calculation is comprised the following steps with obtaining new focus value：
S171：The focus value is divided into multiple set by the size according to the focus value, and each described set includes
Focus value described at least one；With
S172：Use different weighted values to calculate the focus value in set each described to obtain updating for the first time
New focus value, each it is described set correspondence one described weighted value.
Fig. 6 is referred to, in some embodiments, computing module 15 includes the computing unit of division unit 151 and first
152.Step S171 can be realized that step S172 can be realized by the first computing unit 152 by division unit 151.
In other words, division unit 151 is used to that the focus value to be divided into multiple collection according to the size of the focus value
Close, each described set includes focus value described at least one；First computing unit 152 is used for using different weighted values to each
Focus value in the individual set is calculated the new focus value to obtain updating for the first time, each described one institute of set correspondence
State weighted value.
Fig. 7 is referred to, in some embodiments, step S171 draws the focus value according to the size of the focus value
It is divided into multiple set to comprise the following steps：
S1711：Size according to the focus value carries out order arrangement to the focus value；With
S1712：The focus value after order is arranged is divided into multiple set.
Fig. 8 is referred to, in some embodiments, division unit 151 includes arrangement subelement 1511 and divides subelement
1512.Step S1711 can be realized that step S1712 can be realized by division subelement 1512 by arrangement subelement 1511.
In other words, arrangement subelement 1511 is used to carry out order row to the focus value according to the size of the focus value
Row；The focus value that dividing subelement 1512 is used for after order is arranged is divided into multiple set.
In a particular embodiment of the present invention, after human face region is recognized, human face region is divided into 5*5 son first
Region, and the focus value per sub-regions is calculated respectively.Then, the size according to focus value carries out ascending order arrangement to focus value,
And the focus value after ascending order is arranged is divided into 5 set.Specifically, the focus value that arrangement position is 1 to 5 is divided into first
In set, the focus value that arrangement position is 6 to 10 is divided into second set, the focus value that arrangement position is 11 to 15 is drawn
Assign in the 3rd set, the focus value of arrangement position position 16 to 20 is divided into the 4th set, be 21 to 25 by arrangement position
Focus value be divided into the 5th set in.Then, distribute different weighted values to each set to calculate the new of renewal for the first time
Focus value.Wherein, the weighted value of first set is 0.5, and the weighted value of second set is 1.0, and the weighted value of the 3rd set is
1.5, the weighted value of the 4th set is 2.0, and the weighted value of the 5th set is 2.5.In this way, the bigger subregion of focus value is distributed
Weighted value it is bigger, the new focus value that first time for being obtained after weighted calculation updates is bigger, and the total of a two field picture is calculated follow-up
Proportion during focus value shared by bigger new focus value is also bigger.In this way, the fluctuating range of increase focus value curve is right to be lifted
Burnt accuracy.
It should be noted that human face region can not only be divided into 5*5 sub-regions, it is also possible to be divided into other numerical value
Subregion, such as 10*10 sub-regions or 15*15 sub-regions.Additionally, the size according to focus value is arranged focus value
Can not only ascending order arrangement be carried out to focus value, it is also possible to which descending arrangement is carried out to focus value, such as, human face region is drawn during row
After being divided into 5*5 sub-regions and calculating the focus value of each sub-regions, the size according to focus value carries out descending row to focus value
Row.Furthermore, in the step of focus value is divided into multiple set, the value of the number of set can be 5, or 6,
10th, other numerical value such as 12, and number of each included focus value of set can not be equal, or not etc..Separately
Outward, the weighted value that each set is distributed is also not limited to 0.5,1.0,1.5,2.0,2.5 etc. in the specific embodiment of the invention
Weighted value, or other weighted values, such as 0.8,1.6,2.4,3.2,4.0 equal weight values.
Fig. 9 is referred to, in some embodiments, focus value includes the focusing of the focus value and horizontal direction of vertical direction
Value, step S17 is weighted further comprising the steps of to obtain new focus value to the focus value of subregion each described：
S173：The new focus value that the first time of the vertical direction updates is weighted to obtain described hanging down
Nogata to second renewal new focus value；With
S174：The new focus value that the first time of the horizontal direction updates is weighted to obtain the water
Square to second renewal new focus value.
Figure 10 is referred to, in some embodiments, computing module 15 also includes the second computing unit 153.Step S173
Can be realized by the second computing unit 153, step S174 can also be realized by the second computing unit 153.
In other words, the second computing unit 153 is used for the new focus value updated to the first time of the vertical direction
It is weighted to obtain second new focus value of renewal of the vertical direction；It is right that second computing unit 153 is additionally operable to
The new focus value that the first time of the horizontal direction updates is weighted to obtain second of the horizontal direction
The new focus value for updating.
In a particular embodiment of the present invention, the new focus value after being updated due to first time can be decomposed into vertical direction
The new focus value of new focus value and horizontal direction, because the details of eyebrow and eyes in human face region is relatively enriched, in the picture
The gradient for showing as the focus value of vertical direction becomes apparent compared to the gradient of the focus value of horizontal direction, therefore, to vertical
The new focus value that the first time in direction updates is multiplied by weighted value 0.7 with the new focusing after second renewal for obtaining vertical direction
Value, is multiplied by weighted value 0.3 with after second renewal for obtaining horizontal direction to the new focus value that the first time of horizontal direction updates
New focus value, the new focus value and the second of horizontal direction after second of the vertical direction after weighted calculation is updated afterwards
New focus value after secondary renewal is synthesized to obtain the new focus value of each sub-regions.In this way, focusing can further be increased
It is worth the fluctuating range of curve, lifts the accuracy of focusing.
It should be noted that first time both vertically and horizontally update after new focus value corresponding to weighted value
Can also be other numerical value.Weighted value as corresponding to the new focus value after the first time renewal of vertical direction can be 0.8, level
The weighted value corresponding to new focus value after the first time renewal in direction can be 0.2.
Please adopt refering to Figure 11 to 12, in some embodiments, step S19 carries out focusing according to the new focus value to be included
Following steps：
S191：The gross focusing value of cache image described in every frame is calculated using the new focus value；
S192：Judge whether the gross focusing value of cache image described in multiframe upper inflection point occurs；With
S193：When there is the upper inflection point, control motor 22 drives and is moved to the imaging device to focus lens 21
Focusing position.
Figure 13 is referred to, in some embodiments, Focusing module 17 includes the 3rd computing unit 171, judging unit 172
With control unit 173.Step S191 can be realized that step S192 can be real by judging unit 172 by the 3rd computing unit 171
Existing, step S193 can be realized by control unit 173.
In other words, the 3rd computing unit 171 is used to calculate the total of cache image described in every frame using the new focus value
Focus value；Judging unit 172 is used to judge whether the gross focusing value of cache image described in multiframe upper inflection point occurs；Control unit
173 are used for the control motor 22 when there is the upper inflection point drives the focusing position that focus lens 21 are moved to the imaging device
Put.
Wherein, upper inflection point refers to the maximum point on the curve of gross focusing value.Because motor 22 is driven to focus lens
21 movements, so that the never focus state of imaging device 20 becomes focus state, then are changed into non-focus state to focus state,
In whole process, the gross focusing value of cache image first increases and reduces again, so occurring in that a upper inflection point, i.e. maximum
Point, now it is considered that imaging device 20 is in focus state.In this way, imaging device 20 finds the pole on the curve of gross focusing value
Big value point is i.e. achievable focusing after upper inflection point.
It is appreciated that being divided into many sub-regions to the human face region of every two field picture and calculating the second of each sub-regions
After new focus value after secondary renewal, it is possible to use multiple new focus values calculate the corresponding gross focusing value of every two field picture.Gross focusing
The computational methods of value are that multiple new focus values are sued for peace and averaged.Because gross focusing value is by after multiple weighted calculations
New focus value calculate what is come, therefore, differing greatly between the gross focusing value of each two field picture, in other words, by multiple total
The fluctuating range of the gross focusing value curve that focus value is formed is larger, and it is bent that imaging device 20 can relatively accurately find gross focusing value
Maximum extreme point in line, so that it is determined that the focusing position of imaging device 20.In this way, when being shot under being lifted at half-light environment
The accuracy of focusing, lifts shooting quality.
In the description of embodiments of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length
Degree ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ",
" outward ", the orientation or position relationship of the instruction such as " clockwise ", " counterclockwise " are based on orientation shown in the drawings or position relationship, only
It is to be described with simplified for the ease of description embodiments of the present invention, it is necessary rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to embodiments of the present invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more feature.In the description of embodiments of the present invention, " multiple " is meant that two
Individual or two or more, unless otherwise expressly limited specifically.
, it is necessary to illustrate in the description of embodiments of the present invention, unless otherwise clearly defined and limited, term
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one
The connection of body ground；Can mechanically connect, or electrically connect or can mutually communicate；Can be joined directly together, it is also possible to logical
Intermediary is crossed to be indirectly connected to, can be two element internals connection or two interaction relationships of element.For ability
For the those of ordinary skill in domain, above-mentioned term specifically containing in embodiments of the present invention can be as the case may be understood
Justice.
In embodiments of the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it
" on " or D score can include the first and second feature directly contacts, it is also possible to including the first and second features be not directly to connect
Touch but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " on
Face " includes fisrt feature directly over second feature and oblique upper, or to be merely representative of fisrt feature level height special higher than second
Levy.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and tiltedly under
Side, or fisrt feature level height is merely representative of less than second feature.
Above disclosure provides many different implementation methods or example is used for realizing embodiments of the present invention not
Same structure.In order to simplify the disclosure of embodiments of the present invention, above the part and setting to specific examples are described.When
So, they are only merely illustrative, and purpose does not lie in the limitation present invention.Additionally, embodiments of the present invention can be in different examples
Repeat reference numerals and/or reference letter in son, this repetition are for purposes of simplicity and clarity, itself not indicate to be begged for
By the relation between various implementation methods and/or setting.Additionally, the various specific technique that embodiments of the present invention are provided
With the example of material, but those of ordinary skill in the art can be appreciated that the application of other techniques and/or making for other materials
With.
In the description of this specification, reference term " implementation method ", " some implementation methods ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means to combine the tool that the implementation method or example are described
Body characteristicses, structure, material or feature are contained at least one implementation method of the invention or example.In this manual,
Schematic representation to above-mentioned term is not necessarily referring to identical implementation method or example.And, the specific features of description, knot
Structure, material or feature can in an appropriate manner be combined in one or more any implementation methods or example.
Any process described otherwise above or method description in flow chart or herein is construed as, and expression includes
It is one or more for realizing specific logical function or process the step of the module of code of executable instruction, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussion suitable
Sequence, including function involved by basis by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of control method, for controlling electronic installation, it is characterised in that the electronic installation includes imaging device, described
Control method is comprised the following steps：
The multiframe cache image of the imaging device output is processed to recognize whether human face region；
The human face region is divided into many sub-regions when there is the human face region；
Calculate the focus value of each subregion；
Focus value to subregion each described is weighted to obtain new focus value；With
Focused according to the new focus value.
2. control method as claimed in claim 1, it is characterised in that the focus value to subregion each described is added
Power is calculated to obtain new focus value, is comprised the following steps：
The focus value is divided into multiple set by the size according to the focus value, and each described set includes at least one institute
State focus value；With
The new focusing for using different weighted values to calculate the focus value in set each described to obtain updating for the first time
Value, each one described weighted value of the set correspondence.
3. control method as claimed in claim 2, it is characterised in that the size according to the focus value is by the focusing
The step of value is divided into multiple set comprises the following steps：
Size according to the focus value carries out order arrangement to the focus value；With
The focus value after order is arranged is divided into multiple set.
4. control method as claimed in claim 2 or claim 3, it is characterised in that the focus value includes the focus value of vertical direction
With the focus value of horizontal direction；The step of size according to the focus value is weighted to obtain new focus value is wrapped
Include following steps：
The new focus value that the first time of the vertical direction updates is weighted to obtain the vertical direction
The new focus value for updating for second；With
The new focus value that the first time of the horizontal direction updates is weighted to obtain the horizontal direction
The new focus value for updating for second.
5. control method as claimed in claim 1, it is characterised in that the imaging device includes to focus lens and drives described
Focus lens are moved to realize the motor of focusing along optical axis between nearly Jiao position and remote Jiao position；It is described according to the new focusing
The step of value is focused comprises the following steps：
The gross focusing value of cache image described in every frame is calculated using the new focus value；
Judge whether the gross focusing value of cache image described in multiframe upper inflection point occurs；With
The motor is controlled to drive the focusing that focus lens are moved to the imaging device when there is the upper inflection point
Position.
6. a kind of control device, for controlling electronic installation, it is characterised in that the electronic installation includes imaging device, described
Control device includes：
Identification module, the identification module is used to process the multiframe cache image of the imaging device output to recognize whether
Human face region；
Division module, the division module is used to that the human face region to be divided into multiple sub-districts when there is the human face region
Domain；
Computing module, the computing module is used to calculate the focus value of each subregion；With
The computing module is additionally operable to be weighted the focus value of subregion each described obtain new focus value；With
Focusing module, the Focusing module is used to be focused according to the new focus value.
7. control device as claimed in claim 6, it is characterised in that the computing module includes：
Division unit, the division unit is used to that the focus value to be divided into multiple set according to the size of the focus value,
Each described set includes focus value described at least one；With
First computing unit, first computing unit is used for using different weighted values to the focus value in set each described
The new focus value to obtain updating for the first time is calculated, each one described weighted value of the set correspondence.
8. the control device as described in right will go 7, it is characterised in that the division unit includes：
Arrangement subelement, the arrangement subelement is used to carry out order row to the focus value according to the size of the focus value
Row；With
Subelement is divided, the focus value that the division subelement is used for after order is arranged is divided into multiple set.
9. control device as claimed in claim 7 or 8, it is characterised in that the focus value includes the focus value of vertical direction
With the focus value of horizontal direction, the computing module also includes：
Second computing unit, second computing unit is used for the new focus value updated to the first time of the vertical direction
It is weighted to obtain second new focus value of renewal of the vertical direction；With for the institute to the horizontal direction
The new focus value for updating for the first time is stated to be weighted to obtain second new focus value of renewal of the horizontal direction.
10. control device as claimed in claim 6, it is characterised in that the imaging device includes to focus lens and drives institute
State and focus lens are moved to realize the motor of focusing, the Focusing module bag along optical axis between nearly Jiao position and remote Jiao position
Include：
3rd computing unit, the 3rd computing unit is used to calculate the total of cache image described in every frame using the new focus value
Focus value；
Judging unit, the judging unit is used to judge whether the gross focusing value of cache image described in multiframe upper inflection point occurs；
With
Control unit, described control unit is used to control the motor driving described to focus lens when there is the upper inflection point
It is moved to the focusing position of the imaging device.
11. a kind of electronic installations, it is characterised in that the electronic installation includes：
Imaging device；With
Control device as described in claim 6 to 10 any one, the control device and the imaging device are electrically connected.
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| CN107832668A (en) * | 2017-10-10 | 2018-03-23 | 广东欧珀移动通信有限公司 | Facial image acquisition method and relevant device |
| CN111064893A (en) * | 2019-12-27 | 2020-04-24 | 上海摩勤智能技术有限公司 | Code scanning and photographing compatible method and electronic terminal |
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| CN104754206A (en) * | 2013-12-27 | 2015-07-01 | 日立产业控制解决方案有限公司 | Focus control apparatus and method |
| CN104754213A (en) * | 2013-12-27 | 2015-07-01 | 佳能株式会社 | Image capturing apparatus and control method thereof |
| CN106254752A (en) * | 2015-09-22 | 2016-12-21 | 北京智谷睿拓技术服务有限公司 | Focusing method and device, image capture device |
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| CN107832668A (en) * | 2017-10-10 | 2018-03-23 | 广东欧珀移动通信有限公司 | Facial image acquisition method and relevant device |
| CN111064893A (en) * | 2019-12-27 | 2020-04-24 | 上海摩勤智能技术有限公司 | Code scanning and photographing compatible method and electronic terminal |
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