CN105357429A - Focusing control method and device - Google Patents
Focusing control method and device Download PDFInfo
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- CN105357429A CN105357429A CN201410410195.7A CN201410410195A CN105357429A CN 105357429 A CN105357429 A CN 105357429A CN 201410410195 A CN201410410195 A CN 201410410195A CN 105357429 A CN105357429 A CN 105357429A
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- orientation
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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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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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a focusing control method and device. The focusing control method includes the following steps: acquiring a current shoot location of a shooting device; determining whether the current shoot location is stable or not; acquiring the motor initial current corresponding to the current shoot location when the current shoot location is stable; and controlling a motor to drive a lens to focus according to the motor initial current. The problems in the prior art that the shooting effect is not good due to the fixed motor initial current and the focusing speed is slow, can be solved by adoption of the technical scheme of the invention, so that the shooting effect can be effectively improved, and the focusing speed is improved during shooting.
Description
Technical field
The present invention relates to image processing field, in particular to one focusing control method and device.
Background technology
Along with the fast development of camera technique and user are to the demand of high quality graphic, camera (camera) shooting technology is faced with more and more higher requirement, and technology of wherein focusing becomes very important key areas.In image shoot process, the position between filming apparatus and shot object is change relatively; In order to make preview and image of taking pictures keeps clear, need the position constantly adjusting camera lens in process of finding a view, the mode that this adjustment lens location obtains focus exact is called focusing.
Focus in shooting, to take pictures and the technical field such as scanning plays very important effect.In focus process, the movement of camera lens is driven by voice coil motor.By inputting different current values to voice coil motor, lens driving to different positions, is realized focus process by voice coil motor.Due to the impact by stiction, when only having the electromagnetic force produced when drive current to be greater than stiction, motor just can be driven.The electric current that overcoming this stiction needs is called motor initial current.
In shooting process, the direction of user's handheld device constantly changes, and in camera module, the stiction of motor changes thereupon, causes the initial current of motor needs different.If in focus process, motor initial current is set to the value of fixing: (1), when this fixed current value is greater than initial current value, motor is subject to excessive actuating force, causes infinite point scenery fuzzy.(2) when this fixed current value is less than initial current value, motor is subject to less actuating force, causes the time that it is walking out inelastic region longer, reduces focusing speed.
For in prior art due to the motor initial current problem such as fixedly cause the not good and focusing speed of shooting effect slower, at present effective solution is not yet proposed.
Summary of the invention
Main purpose of the present invention is to provide a kind of focusing control method and device, to solve due to problems such as motor initial current fixedly cause the not good and focusing speed of shooting effect slower.
To achieve these goals, according to an aspect of the present invention, provide a kind of focusing control method, comprising: the current shooting orientation obtaining filming apparatus; Judge whether described current shooting orientation is stablized; When judging described current shooting azimuthal stabilization, obtain the motor initial current corresponding with described current shooting orientation; Control motor driving according to described motor initial current to focus.
Preferably, judge that described current shooting orientation is whether stable and comprise: the difference obtaining described current shooting orientation and front shooting orientation when taking for N time, N be not less than 1 natural number; When the absolute value of M difference is all less than the first predetermined threshold value, then judge that described current shooting orientation is in stable state, otherwise, judge that described current shooting orientation plays pendulum, wherein, M≤N.
Preferably, obtain the motor initial current corresponding with described current shooting orientation, comprising: whether more described current shooting orientation and the history after one or more stable in historical record take orientation consistent; When judged result instruction is inconsistent, determine described motor initial current according to the current shooting orientation after stable.
Preferably, when described judged result instruction is consistent, motor initial current corresponding to orientation is taken as the motor initial current corresponding with described current shooting orientation using with described history.
Preferably, whether unanimously judge that described current shooting orientation and the history after one or more stable in historical record take orientation, comprising: obtain the absolute difference that described current shooting orientation and described history take orientation; When described absolute difference is less than the second predetermined threshold value, determine that described current shooting orientation and described history take orientation consistent, otherwise, determine that described current shooting orientation and described history take orientation consistent.
Preferably, obtaining the motor initial current corresponding with described current shooting orientation comprises one of following: determine described motor initial current according to the default corresponding relation taking orientation and motor initial current; Preset function relation according to shooting orientation and motor initial current determines described motor initial current.
Preferably, described shooting orientation comprises: described filming apparatus take time putting position and/or angle.
According to another aspect of the present invention, provide a kind of focusing control apparatus, comprising: the first acquisition module, for obtaining the current shooting orientation of filming apparatus; Judge module, for judging whether described current shooting orientation is stablized; Second acquisition module, for when judging described current shooting azimuthal stabilization, obtains the motor initial current corresponding with described current shooting orientation; Control module, focuses for controlling motor driving according to described motor initial current.
Preferably, described judge module, comprising: acquiring unit, for obtain described current shooting orientation and front take for N time time the difference in shooting orientation, N be not less than 1 natural number; Judging unit, for when the absolute value of M difference is all less than the first predetermined threshold value, then judges that described current shooting orientation is in stable state, otherwise, judge that described current shooting orientation plays pendulum, wherein, M≤N.
Preferably, described second acquisition module, comprising: comparing unit, whether consistent takes orientation for more described current shooting orientation and the history after one or more stable in historical record; Determining unit, for when judged result instruction is inconsistent, determines described motor initial current according to the current shooting orientation after stable.
Preferably, described determining unit, for when described judged result instruction is consistent, takes motor initial current corresponding to orientation as the motor initial current corresponding with described current shooting orientation using with described history.
Pass through the present invention, the technological means of the motor initial current corresponding with current shooting orientation is determined in current shooting orientation after adopting basis stable, solve in correlation technique due to the motor initial current problem such as fixedly cause the not good and focusing speed of shooting effect slower, thus effectively improve shooting effect, improve focusing speed during shooting.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the focusing control method according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the focusing control apparatus according to the embodiment of the present invention;
Fig. 3 is another structured flowchart of the focusing control apparatus according to the embodiment of the present invention;
Fig. 4 is the flow chart of control method of focusing according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 1 is the flow chart of the focusing control method according to the embodiment of the present invention.As shown in Figure 1, the method comprises:
Step S102, obtains the current shooting orientation of filming apparatus;
Step S104, judges whether above-mentioned current shooting orientation is stablized;
Step S106, when judging above-mentioned current shooting azimuthal stabilization, obtains the motor initial current corresponding with above-mentioned current shooting orientation;
Step S108, controls motor driving according to said motor initial current and focuses.
By each treatment step above-mentioned, due to can according to the shooting orientation determination motor initial current after stable, and then the motor controlled for focusing drives, therefore, can fundamentally avoid because motor initial current is that the shooting effect that fixed value causes is not good, and the focusing problems such as speed is slower.
In a preferred embodiment, in step S104, deterministic process can show as following form, but is not limited thereto:
Obtain the difference in current shooting orientation and front shooting orientation when taking for N time, N be not less than 1 natural number;
When the absolute value of M difference is all less than the first predetermined threshold value, then judge that above-mentioned current shooting orientation is in stable state, otherwise, judge that above-mentioned current shooting orientation plays pendulum, wherein, M≤N.Wherein, the value of N and M according to actual conditions by user or manufacturer's sets itself, but can be not limited thereto.
The implementation of step S106 has multiple, in a preferred embodiment, can adopt following process implementation: whether more above-mentioned current shooting orientation and the history after one or more stable in historical record take orientation consistent; When judged result instruction is inconsistent, according to the current shooting orientation determination said motor initial current after stable.
In order to improve the focusing speed in shooting process, when above-mentioned judged result instruction is consistent, motor initial current corresponding to orientation can be taken as the motor initial current corresponding with above-mentioned current shooting orientation using with above-mentioned history.Like this, avoid and all will inquire about motor initial current at every turn, save the query time of motor initial current.
In a preferred implementation process, whether unanimously can judge that above-mentioned current shooting orientation and the history after one or more stable in historical record take orientation in the following manner:
Obtain the absolute difference that above-mentioned current shooting orientation and above-mentioned history take orientation; When above-mentioned absolute difference is less than the second predetermined threshold value, determine that above-mentioned current shooting orientation and above-mentioned history take orientation consistent, otherwise, determine that above-mentioned current shooting orientation and above-mentioned history take orientation consistent.
The implementation of step S106 has multiple, such as, can be determined by one of following mode: (1) is according to the default corresponding relation determination said motor initial current of shooting orientation and motor initial current; (2) according to the preset function relation determination said motor initial current taking orientation and motor initial current.
Preferably, above-mentioned shooting orientation can include but not limited to, filming apparatus take time putting position and/or angle.
A preferred implementation process of said method embodiment is as follows:
S1, unlatching camera, after entering camera preview mode, read the positional information of the position transducers such as gyroscope.
S2, by read positional information, contrast with front N position, judge whether active user position that is hand-held or permanent plant stablizes; If the position of equipment is unstable, get back to S1, continue load position information; If current device location is stablized, then carry out S3.
The device location information read for N time before S201, record, calculates the absolute value of often difference between adjacent two positional informations.
S202, stable threshold is set
S203, to contrast with the stable threshold that absolute value and the S202 of the positional information difference in S201 are arranged.If continuous N time absolute difference is less than or equal to stable threshold, then judgment device position is stablized, and records this device location information; Otherwise S1 and S2, still in change, is repeated in judgment device position.
S3, equipment stablize after positional information and the positional information of upper secondary device when stablizing contrast, whether judgment device positional information changes.If device location information is identical with device location information last time, then carry out S6, directly complete focus operation according to the focusing information of last time; If device location information is different from device location information last time, then carry out S4.
Secondary device settling position information on S301, record
S302, dithering threshold is set
S303, last time in S301 stablized information and this stable information contrasts, calculate the absolute value of difference.If this absolute value is less than or equal to dithering threshold, then judgment device positional information does not change, and carries out S6, directly completes focusing; If this absolute value is greater than dithering threshold, then judgment device position changes, and issues updata order and equipment current location information.
S4, calculated (functional relation between positional information and motor initial current) by look-up table (relation table between positional information and motor initial current) or function, the positional information according to current device obtains corresponding motor initial current.
S401, relation table between setting position information and motor initial current, or the functional relation between positional information and motor initial current;
S402, according to the current location information in S303, the relation table in S401 or functional relation is used to calculate motor initial current.
S5, motor initial current information passed to motor and drive.
S6, motor drive feedback information, to focus algorithm, obtain suitable focusing scheme, and such as focus step value and step_num etc., then complete focus operation by focusing driving.
In the present embodiment, additionally provide a kind of focusing control apparatus, for realizing said method, as shown in Figure 2, this device comprises:
First acquisition module 20, for obtaining the current shooting orientation of filming apparatus;
Judge module 22, is connected to the first acquisition module 20, for judging whether above-mentioned current shooting orientation is stablized;
Second acquisition module 24, is connected to judge module 22, for when judging above-mentioned current shooting azimuthal stabilization, obtains the motor initial current corresponding with above-mentioned current shooting orientation;
Control module 26, is connected to the second acquisition module 24, focuses for controlling motor driving according to said motor initial current.
In a preferred embodiment, as shown in Figure 3, judge module 22 can comprise following processing unit:
Acquiring unit 220, for obtain above-mentioned current shooting orientation and front take for N time time the difference in shooting orientation, N be not less than 1 natural number;
Judging unit 222, is connected to acquiring unit 220, for when the absolute value of M difference is all less than the first predetermined threshold value, then judges that above-mentioned current shooting orientation is in stable state, otherwise, judge that above-mentioned current shooting orientation plays pendulum, wherein, M≤N.
In the present embodiment, the second acquisition module 24, comprising: comparing unit 240, whether consistent takes orientation for more above-mentioned current shooting orientation and the history after one or more stable in historical record; Determining unit 242, for when judged result instruction is inconsistent, according to the current shooting orientation determination said motor initial current after stable.
Above-mentioned determining unit 242, for when above-mentioned judged result instruction is consistent, takes motor initial current corresponding to orientation as the motor initial current corresponding with above-mentioned current shooting orientation using with above-mentioned history
It should be noted that, above-mentioned modules can be realized, for the latter by software or hardware, can be realized by following form, but be not limited thereto: above-mentioned modules is all arranged in same processor, or above-mentioned modules lays respectively in different processors.
In order to understand above-described embodiment better, describe in detail below in conjunction with preferred embodiment.
As shown in Figure 4, present embodiment describes a kind of focusing control method promoting camera focusing speed and precision, comprise the steps:
Step S402. opens camera, after entering camera preview mode, reads the positional information of the position transducers such as gyroscope.
Step S404., by the positional information read, contrasts with front N position, judges whether active user position that is hand-held or permanent plant stablizes.
(1) record the positional information that N continuous time reads, calculate the absolute value of often adjacent twice positional information difference, wherein N can set according to demand.
(2) stable threshold is set.Stable threshold can set according to demand, and threshold value arranged conference reduction and is judged as stable probability, and increase the stable time judged, slow down focusing speed; Threshold value arranges too small meeting and is easy to be judged to position stability, produces erroneous judgement, constantly issues focus operation.
(3) position of reading with N time, often gets the absolute value of difference, and contrasts with the stable threshold changing absolute value and setting between adjacent two values.If there be continuous print M absolute difference to be less than or equal to stable threshold, then judgment device position is stablized, minute book secondary device positional information.Otherwise device location, still in adjustment, continues fetch equipment current location information.Wherein, the value of M can set according to user's request.If M arranges excessive, be judged as that the probability of position stability is less, the stand-by period is longer, and focusing speed slows down; If M arranges too small, shake by a small margin is also easily judged to position stability, adds focusing number of times, and is unfavorable for accurate focusing.
Whether positional information when step S406. judges that this device location information is stablized with upper secondary device is identical.
(1) positional information when secondary device is stablized on record, also can record repeatedly equipment settling position information and be used as inquiry.
(2) dithering threshold is set, can arranges according to user's request.Dithering threshold arranges excessive, then change in location by a small margin can not cause the change of motor initial current, then to the raising DeGrain of focusing speed and precision; If dithering threshold arranges too small, then change in location very by a small margin all needs to calculate up-to-date motor initial current by algorithm, and the parameter of change motor focus algorithm, and add focusing time, slowed down focusing speed.
(3) by last time or frontly repeatedly stablize information and this stable information contrasts, the absolute value of difference was calculated.If this absolute value is less than or equal to dithering threshold, then judgment device positional information does not change, then the focusing parameter using last computation to obtain completes focusing; If this absolute value is greater than dithering threshold, then judgment device position changes, and issues renewal (updata) order and equipment current location information.
Step S408. obtains corresponding motor initial current according to the positional information of current device.
(1) relation table between setting position information and motor initial current, or the functional relation between positional information and motor initial current.Need the minimum effective range of setting position information maximization more accurately, arrange the motor initial current that positional information outside effective range is corresponding simultaneously, prevent condition from crossing the border, algorithm is chaotic.
(2) according to current location information, the relation table of setting or functional relation is used to calculate motor initial current.
Motor initial current information is passed to motor and drives by step S410..
Step S412. motor drives by motor initial current information feed back to focus algorithm, and obtain suitable focusing scheme by suitable algorithm, such as focus step value and step_num etc., then complete focus operation by focusing driving.
In another embodiment, additionally provide a kind of software, this software is for performing the technical scheme described in above-described embodiment and preferred implementation.
In another embodiment, additionally provide a kind of storage medium, store above-mentioned software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a focusing control method, is characterized in that, comprising:
Obtain the current shooting orientation of filming apparatus;
Judge whether described current shooting orientation is stablized;
When judging described current shooting azimuthal stabilization, obtain the motor initial current corresponding with described current shooting orientation;
Control motor driving according to described motor initial current to focus.
2. method according to claim 1, is characterized in that, judges that whether described current shooting orientation is stable and comprises:
Obtain the difference in described current shooting orientation and front shooting orientation when taking for N time, N be not less than 1 natural number;
When the absolute value of M difference is all less than the first predetermined threshold value, then judge that described current shooting orientation is in stable state, otherwise, judge that described current shooting orientation plays pendulum, wherein, M≤N.
3. method according to claim 1, is characterized in that, obtains the motor initial current corresponding with described current shooting orientation, comprising:
Whether more described current shooting orientation and the history after one or more stable in historical record take orientation consistent;
When judged result instruction is inconsistent, determine described motor initial current according to the current shooting orientation after stable.
4. method according to claim 3, is characterized in that, when described judged result instruction is consistent, takes motor initial current corresponding to orientation as the motor initial current corresponding with described current shooting orientation using with described history.
5. method according to claim 3, is characterized in that, whether unanimously judges that described current shooting orientation and the history after one or more stable in historical record take orientation, comprising:
Obtain the absolute difference that described current shooting orientation and described history take orientation;
When described absolute difference is less than the second predetermined threshold value, determine that described current shooting orientation and described history take orientation consistent, otherwise, determine that described current shooting orientation and described history take orientation consistent.
6. method according to any one of claim 1 to 5, is characterized in that, obtains the motor initial current corresponding with described current shooting orientation and comprises one of following:
Default corresponding relation according to shooting orientation and motor initial current determines described motor initial current;
Preset function relation according to shooting orientation and motor initial current determines described motor initial current.
7. method according to any one of claim 1 to 5, is characterized in that, described shooting orientation comprises:
Described filming apparatus take time putting position and/or angle.
8. a focusing control apparatus, is characterized in that, comprising:
First acquisition module, for obtaining the current shooting orientation of filming apparatus;
Judge module, for judging whether described current shooting orientation is stablized;
Second acquisition module, for when judging described current shooting azimuthal stabilization, obtains the motor initial current corresponding with described current shooting orientation;
Control module, focuses for controlling motor driving according to described motor initial current.
9. device according to claim 8, is characterized in that, described judge module, comprising:
Acquiring unit, for obtain described current shooting orientation and front take for N time time the difference in shooting orientation, N be not less than 1 natural number;
Judging unit, for when the absolute value of M difference is all less than the first predetermined threshold value, then judges that described current shooting orientation is in stable state, otherwise, judge that described current shooting orientation plays pendulum, wherein, M≤N.
10. device according to claim 8, is characterized in that, described second acquisition module, comprising:
Whether consistent comparing unit, take orientation for more described current shooting orientation and the history after one or more stable in historical record;
Determining unit, for when judged result instruction is inconsistent, determines described motor initial current according to the current shooting orientation after stable.
11. devices according to claim 10, it is characterized in that, described determining unit, for when described judged result instruction is consistent, takes motor initial current corresponding to orientation as the motor initial current corresponding with described current shooting orientation using with described history.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410195.7A CN105357429A (en) | 2014-08-18 | 2014-08-18 | Focusing control method and device |
| PCT/CN2014/091443 WO2016026229A1 (en) | 2014-08-18 | 2014-11-18 | Focusing control method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410195.7A CN105357429A (en) | 2014-08-18 | 2014-08-18 | Focusing control method and device |
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| CN105357429A true CN105357429A (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410410195.7A Pending CN105357429A (en) | 2014-08-18 | 2014-08-18 | Focusing control method and device |
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| CN (1) | CN105357429A (en) |
| WO (1) | WO2016026229A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107197152A (en) * | 2017-06-16 | 2017-09-22 | 广东欧珀移动通信有限公司 | Focusing method, device, computer-readable recording medium and mobile terminal |
| CN107566741A (en) * | 2017-10-26 | 2018-01-09 | 广东欧珀移动通信有限公司 | Focusing method, device, computer-readable recording medium and computer equipment |
| CN109510936A (en) * | 2017-09-14 | 2019-03-22 | 展讯通信（上海）有限公司 | Continuous Atomatic focusing method and system |
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| CN102547124A (en) * | 2012-01-16 | 2012-07-04 | 华为终端有限公司 | Method and device for photographic processing and mobile equipment |
| CN103064231A (en) * | 2013-02-01 | 2013-04-24 | 信利光电(汕尾)有限公司 | Mobile equipment focusing method and device and mobile equipment |
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- 2014-08-18 CN CN201410410195.7A patent/CN105357429A/en active Pending
- 2014-11-18 WO PCT/CN2014/091443 patent/WO2016026229A1/en active Application Filing
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| CN101895783A (en) * | 2009-05-18 | 2010-11-24 | 华晶科技股份有限公司 | Detection device for stability of digital video camera and digital video camera |
| CN102547124A (en) * | 2012-01-16 | 2012-07-04 | 华为终端有限公司 | Method and device for photographic processing and mobile equipment |
| CN103064231A (en) * | 2013-02-01 | 2013-04-24 | 信利光电(汕尾)有限公司 | Mobile equipment focusing method and device and mobile equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107197152A (en) * | 2017-06-16 | 2017-09-22 | 广东欧珀移动通信有限公司 | Focusing method, device, computer-readable recording medium and mobile terminal |
| CN107197152B (en) * | 2017-06-16 | 2020-01-14 | Oppo广东移动通信有限公司 | Focusing method, focusing device, computer readable storage medium and mobile terminal |
| US11184518B2 (en) | 2017-06-16 | 2021-11-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Focusing method using compensated FV value, storage medium and mobile phone for performing the same |
| CN109510936A (en) * | 2017-09-14 | 2019-03-22 | 展讯通信（上海）有限公司 | Continuous Atomatic focusing method and system |
| CN109510936B (en) * | 2017-09-14 | 2021-03-19 | 展讯通信（上海）有限公司 | Continuous automatic focusing method and system |
| CN107566741A (en) * | 2017-10-26 | 2018-01-09 | 广东欧珀移动通信有限公司 | Focusing method, device, computer-readable recording medium and computer equipment |
| CN107566741B (en) * | 2017-10-26 | 2020-04-14 | Oppo广东移动通信有限公司 | Focusing method, focusing device, computer readable storage medium and computer equipment |
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| Publication number | Publication date |
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| WO2016026229A1 (en) | 2016-02-25 |
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