CN112822399A - Optical anti-shake method, electronic device, and readable storage medium - Google Patents
Optical anti-shake method, electronic device, and readable storage medium Download PDFInfo
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- CN112822399A CN112822399A CN202110014585.2A CN202110014585A CN112822399A CN 112822399 A CN112822399 A CN 112822399A CN 202110014585 A CN202110014585 A CN 202110014585A CN 112822399 A CN112822399 A CN 112822399A
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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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
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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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
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Abstract
The application discloses optical anti-shake method, electronic equipment and readable storage medium, wherein, the optical anti-shake method is applied to the electronic equipment, the electronic equipment includes an application processor AP, a sensor control unit, a gyroscope and a camera module, including: the AP sends the mode information of the gyroscope to the sensor control unit; under the condition that the mode information is in the optical anti-shake mode, the sensor control unit adjusts a first configuration parameter of the gyroscope; the gyroscope generates first gyroscope data according to the adjusted first configuration parameters, and transmits the first gyroscope data to the sensor control unit; the sensor control unit carries out anti-shake control to the camera module according to first gyroscope data to the realization is through the control of application processor to the operating condition of gyroscope, then with first gyroscope data transmission to sensor control unit, sensor control unit carries out anti-shake control to the camera module according to first gyroscope data, in order to improve the quality of shooing.
Description
Technical Field
The application belongs to the technical field of electronics, and particularly relates to an optical anti-shake method, electronic equipment and a readable storage medium.
Background
With the development of mobile phone imaging technology, OIS (Optical image stabilization) is widely used in cameras to avoid or reduce the influence of instrument shake on imaging quality during capturing Optical signals.
In the anti-shake process of the camera, gyroscope data needs to be acquired to measure the shake angle of the camera. However, the gyroscope in the prior art can only provide data according to a preset mode, and the improvement of the shooting quality is restricted.
Content of application
An object of the embodiments of the present application is to provide an optical anti-shake method, an electronic device, and a readable storage medium, which can solve the problem of how to improve the shooting quality.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an optical anti-shake method, which is applied to an electronic device, where the electronic device includes an application processor AP, a sensor control unit, a gyroscope, and a camera module, and the method includes:
the AP sends the mode information of the gyroscope to the sensor control unit;
under the condition that the mode information is an optical anti-shake mode, the sensor control unit adjusts a first configuration parameter of the gyroscope;
the gyroscope generates first gyroscope data according to the adjusted first configuration parameters, and transmits the first gyroscope data to the sensor control unit;
and the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data.
In a second aspect, an embodiment of the present application provides an electronic device, including:
the application processor AP is used for sending the mode information of the gyroscope to the sensor control unit;
the sensor control unit is used for adjusting a first configuration parameter of the gyroscope under the condition that the mode information is an optical anti-shake mode;
the gyroscope is used for generating first gyroscope data according to the adjusted first configuration parameters and transmitting the first gyroscope data to the sensor control unit;
the camera module is connected with the sensor control unit, and the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data.
In a third aspect, the present application provides a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the optical anti-shake method as described above.
In this application embodiment, mode information is issued to the sensor control unit through the application processor, the first configuration parameter of sensor control unit adjustment gyroscope and send to the gyroscope to make the gyroscope generate first gyroscope data according to the first configuration parameter after the adjustment, thereby realize the control through the application processor to the operating condition of gyroscope, then with first gyroscope data transmission to the sensor control unit, the sensor control unit carries out anti-shake control to the camera module according to first gyroscope data, in order to improve the shooting quality.
Drawings
FIG. 1 is a flowchart illustrating an optical anti-shake method according to an embodiment of the present disclosure;
FIG. 2 is a second flowchart illustrating an optical anti-shake method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
First, the technical features of the present embodiment will be explained.
(1) Application Processor (AP): an application processor on the mobile phone, on which an operating system and various applications are run;
(2) sensor control unit (Sensorhub): under the condition that the AP is dormant, the sensor is controlled in real time, power consumption can be reduced, and meanwhile, the lens can be driven to move through the motor according to the acquired lens position detection signal of the Hall sensor and gyroscope data of the gyroscope so as to compensate lens shake;
(3) gyroscope (Gyroscope): the device is used for measuring the angular velocity of three axes of the mobile phone and measuring the optical path deviation caused by hand shake in an optical anti-shake mode;
(4) optical anti-shake controller (OIS controller): the system comprises a gyroscope, a camera module, a target position calculation module and a control module, wherein the gyroscope is used for acquiring gyroscope data, calculating the target position through an optical anti-shake algorithm and controlling the camera module;
(5) motor (activator): the motor is connected with the lens and can control the lens to move after receiving the driving signal;
(6) hall sensor (Hall sensor): and detecting the position of the lens according to the Hall effect to judge whether the lens is moved to the target position.
The optical anti-shake method, the electronic device, and the storage medium provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.
The embodiment of the application discloses an optical anti-shake method which is applied to electronic equipment, wherein the electronic equipment comprises an application processor AP, a sensor control unit, a gyroscope and a camera module.
The gyroscope is used for generating gyroscope data corresponding to an anti-shake mode, and the anti-shake mode comprises an electronic anti-shake mode or an optical anti-shake mode.
The sensor control unit is respectively connected with the gyroscope and the camera module and used for acquiring gyroscope data in different anti-shake modes so as to adjust lens compensation amount in the camera module through the different anti-shake modes.
Among them, Optical Image Stabilization (OIS) means compensating an Optical path where instrument shake occurs in a camera or other similar imaging instruments by a movable component, thereby achieving an effect of reducing a picture blur and improving imaging quality. Electronic anti-shake means that the whole anti-shake process is realized without the assistance and participation of any component and by means of a digital processing technology.
Referring to fig. 1, the method comprises the following steps 101-104:
101. and the AP sends the mode information of the gyroscope to the sensor control unit.
The AP serves as a processing unit of the electronic device, mode information of the gyroscope is sent to the sensor control unit through the AP, and control over the mode of the gyroscope can be achieved.
102. And under the condition that the mode information is an optical anti-shake mode, the sensor control unit adjusts a first configuration parameter of the gyroscope.
Wherein the switching of the anti-shake mode of the gyroscope is controlled by the sensor control unit. Specifically, the sensor control unit receives an optical anti-shake mode of the AP and controls the gyroscope to generate gyroscope data of the optical anti-shake mode; the sensor control unit receives the electronic anti-shake mode of the application processor and controls the gyroscope to generate gyroscope data of the electronic anti-shake mode.
Specifically, the sensor control unit adjusts a first configuration parameter of the gyroscope, including: the sensor control unit adjusts the range of the gyroscope to be smaller than a first range threshold value and the sampling rate to be larger than a first sampling threshold value.
The first measuring range threshold and the first sampling threshold can be set according to actual requirements.
103. And the gyroscope generates first gyroscope data according to the adjusted first configuration parameter, and transmits the first gyroscope data to the sensor control unit.
104. And the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data.
Specifically, the camera module includes a hall sensor and a motor for driving the lens to move, and step 104 includes:
the sensor control unit receives a lens position detection signal generated by the Hall sensor;
the sensor control unit determines the offset of the lens position and the target position according to the first gyroscope data and the lens position detection signal, generates a corresponding driving signal and sends the driving signal to the motor, so that the motor controls the compensation amount corresponding to the movement of the lens according to the driving signal.
The calibration data related to the Hall sensor is written into the nonvolatile storage section during factory calibration and is read out during later use, so that when the module is replaced, the calibration is not needed to be carried out again.
Further, the sensor control unit may further send the first gyroscope data to the AP for application to other occasions, which is not described in detail herein.
In this application embodiment, mode information is issued to the sensor control unit through the application processor, the first configuration parameter of sensor control unit adjustment gyroscope and send to the gyroscope to make the gyroscope generate first gyroscope data according to the first configuration parameter after the adjustment, thereby realize the control through the application processor to the operating condition of gyroscope, then with first gyroscope data transmission to the sensor control unit, the sensor control unit carries out anti-shake control to the camera module according to first gyroscope data, in order to improve the shooting quality.
The embodiment of the application discloses an optical anti-shake method, which is shown in fig. 2 and includes:
201. the AP transmits the mode information of the gyroscope to the sensor control unit and then performs steps 202 and 205, respectively.
In this embodiment, the switching of the anti-shake mode of the gyroscope is controlled by the sensor control unit. The sensor control unit receives the mode information of the AP as an optical anti-shake mode and controls the gyroscope to generate first gyroscope data of the optical anti-shake mode; the sensor control unit receives the mode information of the AP as an electronic anti-shake mode and controls the gyroscope to generate second gyroscope data of the electronic anti-shake mode.
Optionally, before step 201, the method further includes: the hall sensor and gyroscope are calibrated.
The calibration data related to the hall sensor may be configured in the hall sensor, or may be configured in another module, and the calibration data is written into the hall sensor when the hall sensor is calibrated. In this embodiment, the calibration data is preferably written into the nonvolatile storage section of the hall sensor and read out later when used, so that the camera module does not need to be calibrated again when replaced.
202. And under the condition that the mode information is an optical anti-shake mode, the sensor control unit adjusts a first configuration parameter of the gyroscope.
203. And the gyroscope generates first gyroscope data according to the adjusted first configuration parameter, and transmits the first gyroscope data to the sensor control unit.
204. And the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data.
The steps 202 to 204 are the same as the steps 102 to 104 in the foregoing embodiment, and the detailed explanation of the steps 202 to 204 can be found in the foregoing embodiment, which is not repeated herein.
205. And under the condition that the mode information is an electronic anti-shake mode, the sensor control unit adjusts a second configuration parameter of the gyroscope.
Specifically, step 205 includes: the sensor control unit adjusts the range of the gyroscope to be larger than a second range threshold value and the sampling rate to be smaller than a second sampling threshold value;
wherein, second range threshold value and second sampling threshold value can set up according to actual demand, need satisfy: the second range threshold is greater than the first range threshold, and the second sampling threshold is less than the first sampling threshold.
206. And the gyroscope generates second gyroscope data according to the adjusted second configuration parameters and transmits the second gyroscope data to the sensor control unit.
207. And the sensor control unit generates compensation data according to the acquired second gyroscope data so as to adjust the lens compensation amount in the camera module.
It should be noted that: under the electronic anti-shake mode, the sensor control unit generates compensation data according to second gyroscope data fed back by the gyroscope, and does not need the Hall sensor and the motor to work, so that the sensor control unit can close the Hall sensor and the motor under the condition that the received mode information is the electronic anti-shake mode, and electric energy is saved.
Further, the sensor control unit may further send the second gyroscope data to the AP for application to other occasions, which is not described in detail herein.
Further, the camera module further comprises: an image sensor, the method further comprising: the image sensor converts the received optical signal into an image signal so as to transmit the image signal after the anti-shake processing to the AP.
In this application embodiment, mode information is issued to the sensor control unit through the application processor, the first configuration parameter of sensor control unit adjustment gyroscope and send to the gyroscope to make the gyroscope generate first gyroscope data according to the first configuration parameter after the adjustment, thereby realize the control through the application processor to the operating condition of gyroscope, then with first gyroscope data transmission to the sensor control unit, the sensor control unit carries out anti-shake control to the camera module according to first gyroscope data, in order to improve the shooting quality.
In addition, in this embodiment, since the first gyroscope data in the optical anti-shake mode and the second gyroscope data in the electronic anti-shake mode are both from the gyroscope data source in the same channel, the technical defect of difference in compensation effect caused by the fact that the optical anti-shake mode and the electronic anti-shake mode respectively correspond to gyroscope data in different channels in the prior art can be overcome, the compensation effect is better, bus resources are saved, and hardware cost is reduced.
The electronic device provided by the present invention is described below, and the electronic device described below and the optical anti-shake method described above may be referred to in correspondence with each other.
The embodiment of the application discloses an electronic device, see fig. 3, mainly including: a camera module 31, a gyroscope 32, a sensor control unit 33, and an application processor 34.
The sensor control unit 33 is respectively connected to the gyroscope 32 and the camera module 31, and is configured to obtain gyroscope data in different anti-shake modes, so as to adjust lens compensation amount in the camera module 31 according to the different anti-shake modes.
Specifically, the connection bus between the gyroscope 32 and the sensor control unit 33 may be a serial bus, such as a spi bus, an RS-485 bus, or the like.
Wherein: the application processor 34 transmits the mode information of the gyroscope 32 to the sensor control unit 33;
a sensor control unit 33, configured to, when the mode information is an optical anti-shake mode, adjust a first configuration parameter of the gyroscope 32 by the sensor control unit 33;
the gyroscope 32 is configured to generate first gyroscope data according to the adjusted first configuration parameter, and transmit the first gyroscope data to the sensor control unit 33;
the camera module 31 is connected to the sensor control unit 33, and the sensor control unit 33 performs anti-shake control on the camera module 31 based on the first gyroscope data.
Specifically, the camera module 31 includes a hall sensor 313 and a motor 311 that drives the lens 312 to move.
The hall sensor 313 transmits the generated lens position detection signal to the sensor control unit 33; the sensor control unit 33 determines the offset of the lens position from the target position according to the first gyroscope data and the lens position detection signal, generates a corresponding driving signal, and transmits the driving signal to the motor 311, and the motor 311 controls the lens 312 to move by a corresponding compensation amount according to the driving signal.
The above is the processing procedure of each component in the optical anti-shake mode. In the electronic anti-shake mode, the processing procedures of the components are as follows:
when the mode information is the electronic anti-shake mode, the sensor control unit 33 turns off the hall sensor 313 and the motor 311, and adjusts the second configuration parameter of the gyroscope 32; the gyroscope 32 generates second gyroscope data according to the adjusted second configuration parameter, and transmits the second gyroscope data to the sensor control unit 33; the sensor control unit 33 generates compensation data from the acquired second gyroscope data to adjust the lens compensation amount in the camera module 31.
Specifically, in the optical anti-shake mode, the sensor control unit 33 adjusts the range of the gyroscope 32 to be smaller than a first range threshold value, and the sampling rate to be greater than a first sampling threshold value; in the electronic anti-shake mode, the sensor control unit 33 adjusts the range of the gyroscope 32 to be greater than the second range threshold and the sampling rate to be less than the second sampling threshold.
The second range threshold is larger than the first range threshold, and the second sampling threshold is smaller than the first sampling threshold.
Optionally, the sensor control unit 33 transmits the first gyroscope data or the second gyroscope data to the application processor 34.
Optionally, the camera module 31 further includes: an image sensor 314, the image sensor 314 converting the received light signal into an image signal and transmitting the image signal to the application processor 34.
The electronic equipment disclosed in the embodiment of the application, send mode information to the sensor control unit through the application processor, the first configuration parameter of sensor control unit adjustment gyroscope sends to the gyroscope, so that the gyroscope generates first gyroscope data according to the first configuration parameter after the adjustment, thereby realize the control of operating condition through the application processor to the gyroscope, then with first gyroscope data transmission to the sensor control unit, the sensor control unit carries out anti-shake control to the camera module according to first gyroscope data, in order to improve the shooting quality.
In addition, in this embodiment, since the first gyroscope data in the optical anti-shake mode and the second gyroscope data in the electronic anti-shake mode are both from the gyroscope data source in the same path, the technical defect of difference in compensation effect caused by the fact that the optical anti-shake mode and the electronic anti-shake mode respectively correspond to gyroscope data in different paths in the prior art can be overcome, and the compensation effect is better.
The embodiment of the present application further discloses a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction realizes each process of the above optical anti-shake method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. An optical anti-shake method is applied to an electronic device, the electronic device comprises an application processor AP, a sensor control unit, a gyroscope and a camera module, and the method comprises the following steps:
the AP sends the mode information of the gyroscope to the sensor control unit;
under the condition that the mode information is an optical anti-shake mode, the sensor control unit adjusts a first configuration parameter of the gyroscope;
the gyroscope generates first gyroscope data according to the adjusted first configuration parameters, and transmits the first gyroscope data to the sensor control unit;
and the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data.
2. The optical anti-shake method according to claim 1, wherein the camera module includes a hall sensor and a motor that drives a lens to move;
the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data, and includes:
the sensor control unit receives a lens position detection signal generated by the Hall sensor;
and the sensor control unit determines the offset of the lens position and the target position according to the first gyroscope data and the lens position detection signal, generates a corresponding driving signal and sends the driving signal to the motor, so that the motor controls the compensation amount corresponding to the lens movement according to the driving signal.
3. The optical anti-shake method according to claim 1, further comprising:
under the condition that the mode information is an electronic anti-shake mode, the sensor control unit adjusts a second configuration parameter of the gyroscope;
the gyroscope generates second gyroscope data according to the adjusted second configuration parameters, and transmits the second gyroscope data to the sensor control unit;
and the sensor control unit generates compensation data according to the acquired second gyroscope data so as to adjust the lens compensation amount in the camera module.
4. An optical anti-shake method according to claim 3,
the sensor control unit adjusting a first configuration parameter of the gyroscope, including:
the sensor control unit adjusts the range of the gyroscope to be smaller than a first range threshold value and the sampling rate to be larger than a first sampling threshold value;
the sensor control unit adjusting a second configuration parameter of the gyroscope, including:
the sensor control unit adjusts the range of the gyroscope to be larger than a second range threshold value and the sampling rate to be smaller than a second sampling threshold value;
the second range threshold is larger than the first range threshold, and the second sampling threshold is smaller than the first sampling threshold.
5. The optical anti-shake method according to claim 3, further comprising:
the sensor control unit transmits the first gyroscope data or the second gyroscope data to the AP.
6. The optical anti-shake method according to claim 1 or 2, wherein the camera module further comprises: an image sensor;
the method further comprises the following steps: the image sensor converts the received optical signal into an image signal and transmits the image signal to the AP.
7. An electronic device, comprising:
the application processor AP is used for sending the mode information of the gyroscope to the sensor control unit;
the sensor control unit is used for adjusting a first configuration parameter of the gyroscope under the condition that the mode information is an optical anti-shake mode;
the gyroscope is used for generating first gyroscope data according to the adjusted first configuration parameters and transmitting the first gyroscope data to the sensor control unit;
the camera module is connected with the sensor control unit, and the sensor control unit performs anti-shake control on the camera module according to the first gyroscope data.
8. The electronic device of claim 7, wherein the camera module comprises:
a hall sensor for transmitting the generated lens position detection signal to the sensor control unit;
the sensor control unit determines the offset of the lens position and the target position according to the first gyroscope data and the lens position detection signal, generates a corresponding driving signal and sends the driving signal to the motor, and the motor controls the compensation amount corresponding to the lens movement according to the driving signal.
9. The electronic device of claim 7 or 8, wherein the camera module further comprises: an image sensor;
the image sensor converts the received optical signal into an image signal and transmits the image signal to the AP.
10. The electronic device of claim 8,
under the condition that the received mode information is in the electronic anti-shake mode, the sensor control unit closes the Hall sensor and the motor and adjusts a second configuration parameter of the gyroscope;
the gyroscope generates second gyroscope data according to the adjusted second configuration parameters and transmits the second gyroscope data to the sensor control unit;
and the sensor control unit generates compensation data according to the acquired second gyroscope data so as to adjust the lens compensation amount in the camera module.
11. The electronic device of claim 10,
in the optical anti-shake mode, the sensor control unit adjusts the range of the gyroscope to be smaller than a first range threshold value and the sampling rate to be larger than a first sampling threshold value;
in the electronic anti-shake mode, the sensor control unit adjusts the range of the gyroscope to be larger than a second range threshold value and the sampling rate to be smaller than a second sampling threshold value;
the second range threshold is larger than the first range threshold, and the second sampling threshold is smaller than the first sampling threshold.
12. The electronic device of claim 10, wherein the sensor control unit transmits the first gyroscope data or the second gyroscope data to the AP.
13. A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the optical anti-shake method according to any one of claims 1 to 6.
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| CN113709372A (en) * | 2021-08-27 | 2021-11-26 | 维沃移动通信（杭州）有限公司 | Image generation method and electronic device |
| CN113709372B (en) * | 2021-08-27 | 2024-01-23 | 维沃移动通信（杭州）有限公司 | Image generation method and electronic device |
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