WO2023077918A1

WO2023077918A1 - Photographing control method and device, mobile terminal and storage medium

Info

Publication number: WO2023077918A1
Application number: PCT/CN2022/113949
Authority: WO
Inventors: 胡安妮; 谢岚汐
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-11-05
Filing date: 2022-08-22
Publication date: 2023-05-11
Also published as: CN116095506A

Abstract

Disclosed are a photographing control method and device, a mobile terminal and a storage medium, relating to the field of photography. The method comprises: detecting whether a grating needs to be displayed in a current photographing scene; and when it is detected that the grating needs to be displayed, displaying the grating on a photographing interface by adjusting an electrochromic grating layer provided in a camera module, so as to eliminate glare or reflection during photographing.

Description

Camera control method, device, mobile terminal and storage medium

Cross References to Related Applications

This application claims the priority of the Chinese patent application 202111310880.9 entitled "A camera control method, device, mobile terminal and storage medium" filed on November 05, 2021, the entire content of which is incorporated into this application by reference.

technical field

The present disclosure relates to the field of camera, and in particular, to a camera control method, device, mobile terminal and storage medium.

Background technique

With the popularity of mobile terminals such as mobile phones and the improvement of shooting performance, the camera function has become one of the most frequently used functions. When users use mobile phones to take pictures of landscapes or some reflective objects on the surface, there will be glare or reflections that lead to poor shooting quality, and the reflections and glares are difficult to remove with post-processing effects. Therefore there is a need to eliminate glare or unwanted reflections during filming.

Contents of the invention

The main purpose of the embodiments of the present disclosure is to provide a camera control method, device, mobile terminal and storage medium to solve the problem of glare or harmful reflection during shooting.

According to one aspect of the present disclosure, an embodiment of the present disclosure provides a camera control method, the method includes the following steps: detecting whether the grating needs to be displayed in the current shooting scene; and when it is detected that the grating needs to be displayed, by adjusting the The electrochromic grating layer in the camera module displays gratings on the shooting interface to eliminate glare or reflections during shooting.

According to one aspect of the present disclosure, an embodiment of the present disclosure also provides a camera control device, the device includes a memory, a processor, a program stored in the memory and operable on the processor, and used to implement The processor and the memory are connected to a data bus for communication, and when the program is executed by the processor, the steps of the aforementioned camera control method are realized.

According to one aspect of the present disclosure, an embodiment of the present disclosure further provides a mobile terminal, the mobile terminal comprising: an electrochromic grating layer built in a camera module of the mobile terminal and the aforementioned camera control device.

According to one aspect of the present disclosure, an embodiment of the present disclosure provides a storage medium for computer-readable storage, the storage medium stores one or more programs, and the one or more programs can be used by one or more The processor executes to realize the steps of the aforementioned camera control method.

Description of drawings

FIG. 1 is a first flowchart of a camera control method provided by an embodiment of the present disclosure;

FIG. 2 is a second flow chart of the camera control method provided by an embodiment of the present disclosure;

FIG. 3 is a specific flow chart of camera control provided by an embodiment of the present disclosure;

FIG. 4a and FIG. 4b are a front reference diagram and a rear reference diagram of the device of the mobile terminal of the present disclosure;

FIG. 5 is a schematic diagram of functional modules of the mobile terminal of the present disclosure;

6 is a schematic diagram of a single electrochromic camera module of the mobile terminal of the present disclosure;

Figure 7a, Figure 7b and Figure 7c are schematic diagrams of electrochromic gratings; and

Fig. 8 is a corresponding diagram of the user interface and the adjustment bar and the state of the electrochromic grating.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present disclosure, not to limit the present disclosure.

In the subsequent description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating description of the present disclosure and has no specific meaning by itself. Therefore, 'module', 'part' or 'unit' may be used in combination.

FIG. 1 is a first flow chart of a camera control method provided by an embodiment of the present disclosure. As shown in FIG. 1 , the method may include steps S101 and S102.

In step S101, it is detected whether a grating needs to be displayed in the current shooting scene.

In step S102, when it is detected that the grating needs to be displayed, the grating is displayed on the shooting interface by adjusting the electrochromic grating layer built in the camera module.

The camera control method of this embodiment uses the electrochromic grating layer built in the camera module to eliminate glare or harmful reflections during shooting, so as to achieve the best shooting effect and optimize the shooting quality. In addition, because the electrochromic grating layer is built into the camera module instead of connecting the electrochromic grating layer or polarizer to the camera module, the problems of carrying, repeated installation and disassembly of external accessories during actual use are avoided, and the user experience.

Fig. 2 is a second flow chart of the camera control method provided by the embodiment of the present disclosure. As shown in Fig. 2, compared with the embodiment in Fig. 1, after performing step S101 and step S102, the method may further include step S103 .

In step S103, when the grating is displayed, the exposure of the shooting interface is adjusted.

Using the principle of light polarization, it can eliminate glare or harmful reflections during shooting, and improve the clarity and expressiveness of the captured images. However, displaying the grating will reduce the incident light entering the lens, resulting in underexposure. Therefore, in this embodiment, after displaying the grating, the exposure is adjusted to eliminate the underexposure caused by the reduction of incident light sources.

Electrochromic materials refer to materials whose optical properties such as reflectivity, transmittance, and absorptivity undergo stable and reversible color changes under the action of an external electric field, and appear as reversible changes in color and transparency in appearance. In related technologies, electrochromic materials are generally applied to camera filters, mainly by adding one or more electrochromic material layers on the camera module, and adjusting the transparency of the electrochromic material layer by adjusting the electromagnetic force. In order to achieve the purpose of adjusting the color temperature of the photo according to the environment or adjusting the color of the filter according to the user's choice, and enriching the shooting effect. From the shooting effect of related technologies, it can only enrich the shooting effect of users, but it cannot help users solve the harmful light processing in the shooting scene, and these effects can also achieve similar effects through post-adjustment of photos; at the same time, for color-changing materials The use method is relatively simple, and the purpose of free color adjustment is only achieved through superimposed discoloration, and the adjustment dimension of the material itself only includes the adjustment of transparency. In this embodiment, the characteristics of electrochromic materials are added to the manufacture of polarizers, especially the manufacture of linear polarizers. Specifically, an electrochromic grating that can be used as a polarizer is made by utilizing the characteristics of electrochromic materials. To achieve the purpose of building the "polarizer" into the camera module, such as the camera module of mobile terminals such as mobile phones, to solve the problem of low shooting quality caused by glare or harmful reflections, improve the quality of photos and videos, and improve user experience. At the same time, in order to solve the problem of underexposure, when the raster is displayed, the exposure of the camera interface is automatically adjusted to further ensure the shooting effect.

Further, the step S101 may include: judging whether the smart shooting mode has been turned on, and when it is judged that the smart shooting mode has been turned on, detecting the image acquired by the camera module, and if it is detected that there is a raster in the image that needs to be displayed. image content, it is determined that the grating needs to be displayed in the current shooting scene; when it is judged that the smart shooting mode is not turned on, it is detected whether the polarized shooting mode (such as the landscape shooting mode) has been manually turned on, and if it is detected that the polarized shooting mode has been manually turned on , it is determined that the raster needs to be displayed in the current shooting scene. That is to say, in this embodiment, after using the electrochromic material to make the polarization grating (that is, the electrochromic grating or polarizer) and built it into the camera module, it can automatically control whether the electrochromic grating displays , specifically, when the smart shooting mode is turned on, the content of the image captured by the camera module can be identified, and if the landscape element is recognized, the raster display is controlled. Shooting mode. At this time, if the user turns on the polarization shooting mode, control the raster display.

Further, the step S102 may include: adjusting the electric field parameters according to the preset correspondence between transparency and electric field parameters, so that the electrochromic grating layer in the camera module performs grating display according to the corresponding transparency. In this embodiment, the grating transparency of the electrochromic grating layer can be changed under different electric fields. In addition, the grating structure of the electrochromic grating layer can control the passage of light in a single direction, eliminating glare or harmful reflection during shooting.

Further, the step S103 may include: determining the exposure adjustment amount corresponding to the transparency of the electrochromic grating layer in the camera module according to the preset correspondence between the transparency and the exposure adjustment amount when displaying the grating , and then adjust the exposure according to the exposure adjustment amount corresponding to the transparency of the electrochromic grating layer in the camera module and the initial exposure parameter. Wherein, the initial exposure parameters are obtained and recorded by performing initial photometry before the step S102.

After step S103, if it is detected that the user presses the shooting button, it means that the user is satisfied with the currently previewed shooting effect, and the currently captured image can be stored.

During the actual shooting process, the user may not be satisfied with the currently previewed shooting effect. Therefore, this embodiment provides an adjustment bar on the interactive interface. After step S103, the user can independently adjust the angle and transparency of the grating. Specifically, an angle adjustment bar and a transparency adjustment bar are provided on the interactive interface, and the angle of the electrochromic grating in the camera module can be set by using the angle adjustment bar in the interactive interface; Transparency adjustment bar, using the transparency adjustment bar in the interactive interface, can set the transparency of the electrochromic grating in the camera module. In addition, in addition to setting and adjusting the angular transparency of the grating through the adjustment bar, other shooting parameters can also be set on the interactive interface, such as the exposure adjustment amount. relationship to determine the amount of exposure adjustment corresponding to the set transparency. After obtaining the set angle, transparency and corresponding exposure adjustment, the angle and transparency of the grating and the exposure of the shooting interface can be controlled, so as to obtain an image satisfactory to the user.

The electrochromic grating produced in this embodiment is used as a linear polarizer, so when shooting involves focusing and photometry operations, it is necessary to automatically adjust the electric field to hide the grating layer before focusing and metering to ensure the effectiveness of focusing and photometry. Meter again with the electrochromic grating hidden to record the re-exposure parameters. Then control the angle and transparency of the grating and the exposure of the shooting interface, specifically, according to the corresponding relationship between the preset angle and the structural parameters of the camera module, determine the camera module structure corresponding to the angle of the electrochromic grating set on the interactive interface parameters, so that by adjusting the structural parameters of the camera module where the electrochromic grating is located, the grating angle of the electrochromic grating layer is adjusted, so that the user can adjust the angle of the grating through the interactive interface and select the incident light angle; according to the preset transparency and electric field The corresponding relationship of parameters determines the electric field parameter corresponding to the transparency of the electrochromic grating set on the interactive interface, thereby adjusting the transparency of the grating of the electrochromic grating layer by adjusting the electric field parameters, so that the user can adjust the transparency of the grating through the interactive interface, Changing the visibility of the grating; when displaying the grating, adjust the exposure according to the re-exposure parameters and the exposure adjustment corresponding to the set transparency to obtain the adjusted exposure, so as to shoot according to the adjusted exposure The image of the interface is subjected to exposure processing.

The polarizer itself includes two types of linear polarizer and circular polarizer, and the shooting effects of the two lenses are the same. Among them, the linear polarizer affects the accuracy of the light metering system on automatic cameras, so it is more used in traditional manual cameras. The circular polarizer is based on a linear polarizer superimposed with a quarter-wave plate, which converts linearly polarized light into circularly polarized light to solve the problem of photometry, but actually increases the composition and thickness of the lens. Therefore, in the scene where the accuracy of the photometry system is high, but the thickness of the electrochromic camera module is not high, the electrochromic grating and the conventional lens assembly of a single electrochromic camera module in the camera module, Add a quarter-wave plate, so that in the actual shooting process, after the user adjusts the shooting parameters such as the grating angle and transparency, the photometry process can be omitted, and the angle and transparency of the grating and the exposure of the shooting interface can be directly controlled. , that is, in the case of setting a quarter-wave plate between the electrochromic grating and the lens assembly of the camera module where the electrochromic grating is located, according to the set angle and transparency of the electrochromic grating, adjust The grating angle and transparency of the electrochromic grating layer are used to display the grating; when the grating is displayed, the exposure amount is adjusted according to the exposure adjustment amount corresponding to the set transparency.

In this embodiment, the electrochromic grating is built into a camera module, such as a camera module of a mobile terminal such as a mobile phone, to solve the problems of carrying, repeated installation and disassembly of external accessories. In addition, this embodiment adjusts the parameters of the electric field according to the content recognition of the acquired image and the user's operation instructions, and then changes the transparency of the electrochromic grating layer, controls the passage of light in a single direction through the grating structure, and adjusts the exposure at the same time, which solves the problem during the shooting process. Low-quality shots caused by glare or harmful reflections, as well as underexposure, improve the user experience.

The camera control process of the shooting process will be described in detail below in conjunction with FIG. 3 .

Before the shooting process starts, the equipment parameters need to be preset. Specifically, before the actual shooting, the following six parts of parameter presets are performed on the software and hardware of the equipment.

A. Preset the corresponding relationship between the display transparency of the electrochromic grating layer (referred to as transparency) and the actual parameters of the applied electric field (referred to as electric field parameters), so that the electrochromic grating (referred to as grating) can be adjusted by adjusting the electric field parameters during the shooting process display transparency.

B. The corresponding relationship between the angle of the electrochromic grating layer and the structural parameters of the camera module is preset, so that the angle of the electrochromic grating can be changed by adjusting the camera module structural member of the camera module where the electrochromic grating layer is located.

C. The correspondence between the angle adjustment bar of the default user interface (or interactive interface) and the angle of the electrochromic grating; the transparency adjustment bar of the preset user interface (transparency adjustment bar) and the transparency of the electrochromic grating Correspondence.

D. After displaying the grating, in order to maintain the brightness of the shooting content, it is necessary to increase the exposure, so it is necessary to preset the default exposure adjustment amount of the camera module after the user displays the electrochromic grating.

E. Preset the initial transparency and angle of the electrochromic grating. The initial transparency of the grating can be set to 0%, that is, the grating will not be displayed.

F. If the shooting function of the terminal device supports smart object recognition or smart mode switching, it is necessary to preset which shooting modes or recognize which elements will display the raster by default; in other modes, the raster will not be displayed by default. Since polarization is mainly used in landscape shooting to solve the problems of glare and harmful reflections, it is generally preset to automatically adjust the electric field display grating in landscape shooting mode or when image glare is recognized.

After the device parameters are preset, the specific implementation steps of user shooting may include the following steps as shown in FIG. 3 .

In step C201, it is detected that the camera module is turned on, and the user opens the shooting application.

This embodiment needs to be carried out under the shooting operation of the user, and first detects the opening state of the camera module to ensure that the image information can be obtained normally; moreover, the user has opened a specific camera or photography application, and can preview the shooting effect in the interface.

In judgment C202.1, the camera module acquires images, and the detection preset needs to display the content of the raster layer.

When in the smart shooting mode, that is, when the smart object recognition or smart mode switching is turned on, if it is recognized that the content of the grating needs to be displayed in accordance with the preset information, then perform step S201; Normal shooting process.

In judgment C202.2, it is detected that the user manually turns on the polarization shooting mode.

When the intelligent shooting mode is not enabled or does not support the intelligent shooting mode, the user uses the manual shooting mode to shoot, and it is necessary to detect whether the user has manually turned on the polarization shooting mode. If the polarization shooting mode is turned on, perform step S201; transparent state), carry out the normal shooting process.

In step S201 , before displaying the electrochromic grating, initial light metering and focusing are performed.

Since the linear polarization grating has an impact on the photometry and focusing operations during digital shooting, before displaying the electrochromic grating, perform the initial photometry and focusing operations in the transparent state of the grating, and record the exposure parameters and focus parameters in the current shooting state.

In step S202, electric field parameters are adjusted according to a preset, so that the electrochromic grating is displayed.

After step S201 is completed, the electric field parameters are adjusted according to the preset correspondence between the electric field parameters and the transparency parameters of the electrochromic grating, so that the grating is displayed and the incident light is controlled.

In step S203, after the grating is displayed, the shooting exposure is adjusted according to a preset.

After the grating is displayed, due to the decrease in the amount of incident light, the exposure of the shooting needs to be adjusted. The exposure parameter obtained in step S201 is added to the exposure adjustment value in the parameter preset to ensure that the brightness of the shooting content is still appropriate after the grating is displayed.

In step S204, user interface adjustment parameters are obtained, and parameters of the actual electrochromic grating layer and other shooting parameters are adjusted based on presets.

After displaying the electrochromic grating, the user also needs to adjust the angle and transparency of the grating by using the adjustment bar in the interactive interface according to the actual shooting scene, and select the appropriate parameters to get the best effect of the photo taken. At the same time, the user can also adjust other general parameters such as the shooting focus object, shooting exposure, and color temperature.

In step S205, after the user adjusts the parameters, the electrochromic grating is hidden and light metering and focusing are performed again.

After the user has finished adjusting the parameters, he can perform metering and focusing again before shooting. In order to ensure the effectiveness of photometry and focusing, it is necessary to record the grating angle and transparency parameters currently set by the user before metering and focusing, and then change the electric field parameters during the photometry and focusing process to set the transparency of the electrochromic grating to be completely transparent.

In step S206, based on the grating angle set by the user, the electric field and the structural parameters of the camera module are adjusted to display the electrochromic grating.

After completing photometry and focusing again, continue to adjust the electric field and the structural parameters of the camera assembly, and adjust the electrochromic grating to the user-adjusted parameters recorded in step S205, including angle and transparency.

In step C103, detect whether the user presses the shooting button, if yes, execute step S207, otherwise, repeat judgment C202.1 or judgment C202.2 according to the situation.

During the entire shooting process, it is necessary to detect whether the user presses the shooting button in the interactive interface. If it is detected that the user presses the shooting button, it means that the user needs to take a video or image of the shooting effect previewed in the current interactive interface, and then perform step S207; If the operation of pressing the shooting button by the user is not detected, it means that the user will continue to adjust the shooting content, and the judgment C202.1 or judgment C202.2 will be repeated according to the situation.

In step S207, currently captured image information or image information is stored.

After the user clicks the shooting button, the image information or image information acquired by the current camera module is stored in the storage module, allowing the user to view and preview the shooting content or perform other editing operations later.

This disclosure uses electrochromic materials to make the grating layer and builds it into the camera module. When the user takes photos or videos, the parameters of the electric field can be adjusted according to the content recognition of the acquired image and the user's operation instructions, thereby changing the electrochromic layer. Transparency of the color-shifting raster layer. When the grating is displayed, it can automatically adjust the exposure of the interface to ensure the shooting effect. At the same time, the user can adjust the angle of the grating through the interactive interface, select the angle of incident light, and eliminate glare or harmful reflections during shooting. In addition, when the grating is displayed, if the shooting involves focusing and metering operations, it can automatically adjust the electric field to hide the grating layer before focusing and metering to ensure the effectiveness of focusing and metering. After the metering and focusing operations are completed, the grating layer is displayed to ensure the shooting effect .

It should be noted that, during implementation, a quarter-wave plate can also be added between the electrochromic grating of a single electrochromic camera module and the conventional lens assembly. In this way, in the actual shooting process, when the user adjusts the shooting After the parameters are set, the two steps of S205 and S206 that first hide and then display the electrochromic grating can be omitted in the process of photometry and focusing. However, it will lead to an increase in the thickness of the electrochromic camera module, so the solution can be selected according to the actual situation.

This embodiment proceeds from practical problems and uses the characteristics of electrochromic materials to propose a solution to build an electrochromic grating layer that can realize the function of a polarizer into a camera module, such as a camera module of a mobile terminal such as a mobile phone, to solve the problem of glare or The problem of low shooting quality caused by harmful reflections improves the camera and video quality and user experience of mobile terminals. It is suitable for smart terminal devices with cameras used by users to take specific photos and videos.

An embodiment of the present disclosure also provides a camera control device, the device includes a memory, a processor, a program stored in the memory and operable on the processor, and a program for implementing the processor and the The memory is connected to a data bus for communication, and when the program is executed by the processor, the steps of the aforementioned camera control method are realized. Wherein, the memory includes but not limited to RAM (random access memory), ROM (read only memory), EEPROM (electrically erasable programmable read only memory), and the processor includes but not limited to central processing unit, digital signal processor or microprocessor.

An embodiment of the present disclosure also provides a mobile terminal, which includes: an electrochromic grating layer built in a camera module of the mobile terminal and the aforementioned camera control device.

Fig. 4a and Fig. 4b are the device front reference diagram and the device back reference diagram of the mobile terminal of the present disclosure. The image is input into the camera module, which includes an electrochromic camera module.

FIG. 5 is a schematic diagram of functional modules of the mobile terminal of the present disclosure. As shown in FIG. 5 , the functional modules of the terminal device include: an input module, a judgment module, a control module, a calculation and storage module, and an output module.

Wherein, the input module mainly includes two parts, namely image input and user operation input. The image input part mainly refers to the camera module of the mobile terminal, which can obtain surrounding image information. The whole camera module is composed of one or more camera modules, at least one of which is an electrochromic camera module. The user operation input part is a module that obtains user instructions such as adjusting grating transparency, rotation angle, shooting focus, shooting, video recording, etc. during the shooting process, including but not limited to obtaining user operations on the touch screen or device buttons.

FIG. 6 is a schematic diagram of a single electrochromic camera module of the mobile terminal of the present disclosure. As shown in FIG. 6 , a single electrochromic camera module needs to include at least 5 parts, which are circuit substrate 1, sensor photosensitive device 2, and focusing and photometry components. 3. Conventional lens assembly 4 and electrochromic grating layer 5 .

The difference between the electrochromic camera module and the ordinary camera lens is mainly in the electrochromic grating layer 5, the electrochromic grating layer 5 is essentially a linear polarizer made of electrochromic material, and the grating structure (common grating interval is 5 microns left and right), to control the passage of light in a single direction. The grating part of the polarizer can adjust the visibility of the grating itself, that is, the transparency, under different electric fields, so as to realize the change between ordinary lenses and polarized lenses. At the same time, the electrochromic grating can be rotated according to the actual shooting environment and user needs, so as to achieve the purpose of controlling the direction of the incident light source, as shown in Figure 7a, Figure 7b and Figure 7c.

It should be noted that this case only involves the transparency and angle changes of a single-layer electrochromic grating. After adding a multi-layer electrochromic grating structure, the structure combination can obtain more different shooting effects during the shooting process, enriching users Shooting experience.

Among them, the judging module needs to judge the state of the equipment, judge according to the specific information received by the input module, and give the angle parameter and transparency parameter of the electrochromic grating. At the same time, other user operations during the shooting process are converted into recognizable shooting or adjustment instructions.

Among them, the control module controls the angle and transparency of the electrochromic grating in the image input module by obtaining the conclusion of the judgment module, and at the same time controls the image input module, the calculation and storage module and the output module to perform specific shooting or adjustment operations.

Among them, the calculation and storage module is used to store the specific content of the user's shooting, as well as some preset instructions and specific parameters, including the angle parameters and transparency parameters of the current electrochromic grating.

Among them, the output module refers to the information interaction screen between the device and the user. During the shooting process, the user can observe the specific effect of the current shooting in real time through the screen of the mobile terminal.

Among the above-mentioned modules, the calculation part of the judgment module, the control module, and the calculation and storage module can be realized by a processor.

The following provides an actual case when a user takes a photo.

The parameter presets before shooting include the following.

A. The adjustable transparency range of the electrochromic grating is 0%-100%, 0% means the grating is invisible, 100% means the grating is completely visible, and the grating is able to block all incident light in its direction.

B. The adjustable angle range of the electrochromic grating is 0-180 degrees.

C. The initial state of the electrochromic grating is 0% transparency and an angle of 90 degrees.

D. The corresponding relationship between the user interface adjustment bar and the state of the electrochromic grating is shown in FIG. 8 .

E. When the transparency of the grating is 0%, keep the normal exposure; when the transparency of the grating is 100%, increase the exposure by 20%. Transparency increases exposure linearly between 0-100%.

F. When the user's shooting content is recognized as a landscape, the electrochromic grating (transparency 100%, angle 90 degrees) is automatically displayed.

When the user takes a picture of the scenery, the system will automatically enter the polarization grating shooting mode after recognizing the scenery elements, and the transparency adjustment bar and the angle adjustment bar of the electrochromic grating for the user to manually adjust appear in the user interface, as shown in the user interface of Figure 8 Show. The system will perform initial metering and focusing operations to record the current exposure; adjust the electric field parameters, set the transparency of the electrochromic grating to 100%, and set the angle to 90 degrees, and will increase the exposure based on the current exposure. 20% exposure. Displaying the effect of the electrochromic grating layer after adjusting the exposure will be displayed in real time in the shooting viewfinder interface of the user interface. Users can adjust the transparency adjustment bar and angle adjustment bar in the interface according to the shooting effect displayed in the shooting viewfinder interface, so as to adjust the state of the electrochromic grating layer and find the most suitable parameters for the current shooting scene. During the user adjustment process, if it is necessary to change the photometry and focus again, adjust the electric field first to hide the electrochromic grating layer. After the photometry and focus are completed, the grating layer adjusted by the user will be displayed to ensure the effectiveness of photometry and focus. . After the user has finished adjusting, click the shooting shutter button in the interface, the system will store the current image, and support the user to view and preview or other post-editing operations.

In this embodiment, the terminal device uses an electrochromic material to make a polarization grating built into the camera. In specific applications, the transparency of the electrochromic grating display is automatically controlled according to content recognition and specific scenes; the exposure of the photo after the grating display is automatically optimized; the user can manually adjust the parameters of the electrochromic grating layer.

Based on the characteristics of the electrochromic material, the embodiment of the present disclosure proposes a solution to build the electrochromic grating layer that can realize the function of the polarizer into the camera module of mobile terminals such as mobile phones, so as to solve the problems caused by glare or harmful reflection. At the same time, in order to avoid the problem of underexposure, after displaying the raster, the exposure can be appropriately increased to improve the mobile terminal’s photo and video quality and user experience. In addition, since the grating transparency and angle of the electrochromic grating layer can be adjusted, for scenes such as shooting non-reflective objects or shooting water surface projections, the exposure caused by the reduction of incident light after the polarizer is built into the camera module in the related art can be avoided. Insufficient problem.

Furthermore, an embodiment of the present disclosure also provides a storage medium for computer-readable storage, the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors , so as to realize the steps of the foregoing imaging control method.

Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof.

In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit . Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

The preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, and the scope of rights of the present disclosure is not limited thereby. Any modifications, equivalent replacements and improvements made by those skilled in the art without departing from the scope and spirit of the present disclosure shall fall within the scope of rights of the present disclosure.

Claims

A camera control method, comprising:

Detect whether a raster needs to be displayed in the current shooting scene; and

When it is detected that the grating needs to be displayed, the grating is displayed on the shooting interface by adjusting the electrochromic grating layer built in the camera module, so as to eliminate glare or reflection during shooting.
The method according to claim 1, wherein the detecting whether a grating needs to be displayed in the current shooting scene comprises:

Determine whether the smart shooting mode is turned on;

When it is judged that the smart shooting mode has been turned on, the image acquired by the camera module is detected, and if it is detected that there is image content in the image that needs to display the grating, it is determined that the grating needs to be displayed in the current shooting scene; and

When it is judged that the intelligent shooting mode is not turned on, it is detected whether the polarization shooting mode has been manually turned on, and if it is detected that the polarization shooting mode has been manually turned on, it is determined that the grating needs to be displayed in the current shooting scene.
The method according to claim 1, further comprising:

Before the grating is displayed on the shooting interface by adjusting the electrochromic grating layer built in the camera module, initial photometry is performed to record initial exposure parameters.
The method according to claim 1, wherein said displaying the grating on the shooting interface by adjusting the electrochromic grating layer built in the camera module comprises:

According to the preset correspondence between the transparency and the electric field parameter, the electric field parameter is adjusted, so that the electrochromic grating layer in the camera module performs grating display according to the corresponding transparency.
The method according to claim 3, further comprising:

When displaying the raster, adjust the exposure of the shooting interface, wherein,

When the grating is displayed, adjusting the exposure of the shooting interface includes:

When performing raster display, determine the exposure adjustment amount corresponding to the transparency of the electrochromic grating layer in the camera module; and

The exposure amount is adjusted according to the exposure adjustment amount corresponding to the transparency of the electrochromic grating layer in the camera module and the initial exposure parameter.
The method according to claim 1, further comprising:

Using the angle adjustment bar and the transparency adjustment bar in the interactive interface, respectively set the angle and transparency of the electrochromic grating in the camera module, and determine the exposure adjustment corresponding to the set transparency.
The method of claim 6, further comprising:

Metering again with the electrochromic grating hidden to record the re-exposure parameters; adjusting the grating angle and transparency of the electrochromic grating layer to display the grating according to the set angle and transparency of the electrochromic grating; and adjusting the exposure amount according to the re-exposure parameter and the exposure adjustment amount corresponding to the set transparency when displaying the grating;

Or, in the case where a quarter-wave plate is set between the electrochromic grating and the lens assembly of the camera module where the electrochromic grating is located, adjust the electrochromic grating according to the set angle and transparency of the electrochromic grating. adjusting the grating angle and transparency of the electrochromic grating layer to display the grating; and adjusting the exposure amount according to the exposure adjustment amount corresponding to the set transparency when displaying the grating.
A camera control device, comprising a memory, a processor, a program stored on the memory and operable on the processor, and a data bus for realizing connection and communication between the processor and the memory, When the program is executed by the processor, the steps of the camera control method according to any one of claims 1-7 are implemented.
A mobile terminal, comprising: an electrochromic grating layer built into a camera module of the mobile terminal and the camera control device according to claim 8 .
A storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement claims 1 to 7 The steps of any one of the camera control methods.