WO2019237798A1 - Procédé de commande de caméra, terminal mobile et support de stockage lisible par ordinateur - Google Patents

Procédé de commande de caméra, terminal mobile et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2019237798A1
WO2019237798A1 PCT/CN2019/081044 CN2019081044W WO2019237798A1 WO 2019237798 A1 WO2019237798 A1 WO 2019237798A1 CN 2019081044 W CN2019081044 W CN 2019081044W WO 2019237798 A1 WO2019237798 A1 WO 2019237798A1
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WO
WIPO (PCT)
Prior art keywords
camera
code scanning
parameters
photographing
mobile terminal
Prior art date
Application number
PCT/CN2019/081044
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English (en)
Chinese (zh)
Inventor
赵国伟
曾检生
赖哲锋
Original Assignee
百富计算机技术（深圳）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 百富计算机技术（深圳）有限公司 filed Critical 百富计算机技术（深圳）有限公司
Publication of WO2019237798A1 publication Critical patent/WO2019237798A1/fr

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Classifications

    • 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
    • H04N23/617—Upgrading or updating of programs or applications for camera control
    • 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
    • H04N23/62—Control of parameters via user interfaces

Definitions

  • the present application belongs to the technical field of camera control, and particularly relates to a camera control method, a mobile terminal, and a computer-readable storage medium.
  • the Android platform is the name of a free and open source operating system based on the Linux platform.
  • the platform consists of an operating system, middleware, user interface, and application software.
  • the Android operating system is mainly used in mobile devices, such as mobile phones and POS machines.
  • the camera application and camera driver provided with the android system are used in the POS machine.
  • the camera application and camera driver provided with the android system are aimed at how to improve the photographic effect.
  • the problem of the identification code word If the photographing parameters in the android system are modified, the identification code word can be recognized but the photographing effect is not good. Therefore, the current mobile terminal based on the android system cannot meet the accuracy without adding hardware. Scan the code, and meet better camera effects.
  • embodiments of the present application provide a method for controlling a camera, a mobile terminal, and a computer-readable storage medium, so as to solve the current problem that mobile terminals cannot simultaneously meet the requirements of accurate code scanning and better photography without adding hardware. Question of effectiveness.
  • a first aspect of the embodiments of the present application provides a method for controlling a camera, which is applied to a mobile terminal.
  • the control method includes:
  • preset flag information is turned on, acquiring code scanning parameters, and acquiring images through the camera based on the code scanning parameters;
  • the preset flag information is not turned on, a photographing parameter is acquired, and an image is collected by the camera based on the photographing parameter.
  • a second aspect of the embodiments of the present application provides a mobile terminal, including:
  • a confirmation module configured to check whether preset flag information is turned on after receiving an instruction to start the camera of the mobile terminal
  • the code scanning module is configured to obtain code scanning parameters if preset flag information is turned on, and collect images through the camera based on the code scanning parameters;
  • a photographing module is configured to acquire photographing parameters if preset flag information is not turned on, and collect images through the camera based on the photographing parameters.
  • a third aspect of the embodiments of the present application provides a mobile terminal including a memory, a processor, and a computer program stored in the memory and executable on the processor.
  • the processor executes the computer program, Implement the steps of the method provided by the first aspect of the embodiments of the present application.
  • a fourth aspect of the embodiments of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program, and the computer program is implemented by one or more processors to implement the first embodiment of the present application. Steps of the method provided by aspects.
  • a fifth aspect of the embodiments of the present application provides a computer program product, where the computer program product includes a computer program, and the computer program is implemented by one or more processors to implement the described in the first aspect of the embodiments of the present application. Method steps.
  • the mobile terminal after receiving an instruction to start the camera of the mobile terminal, it is checked whether preset flag information is turned on. If the preset flag information is turned on, code scanning parameters are obtained and based on the code scanning parameters. Acquiring images through the camera, and if preset logo information is not turned on, acquiring photographing parameters, and acquiring images through the camera based on the photographing parameters.
  • the preset flag information is used to determine whether the camera is currently activated by the scanning application or the camera activated by the camera application. The image is collected by the camera based on the scan code parameters, and the image is collected by the camera when the photo is taken. In this way, the mobile terminal can be controlled to meet the requirements of accurate code scanning and better photographing effects without adding any hardware.
  • FIG. 1 is a software design framework provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a camera control method provided by an embodiment of the present application.
  • FIG. 3 provides a schematic diagram of enabling or disabling preset flag information according to a code scanning application according to an embodiment of the present application
  • FIG. 4 is a schematic block diagram of a mobile terminal according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of another mobile terminal according to an embodiment of the present application.
  • the term “if” can be construed as “when” or “once” or “in response to a determination” or “in response to a detection” depending on the context .
  • the phrase “if determined” or “if [the described condition or event] is detected” may be interpreted, depending on the context, to mean “once determined” or “in response to the determination” or “once [the condition or event described ] “Or” In response to [Description of condition or event] detected ".
  • This application hopes that without adding hardware (a camera is used to scan the code and one is used to take pictures to satisfy both code scanning and photographing, but hardware needs to be added), and the interface of the native android system is not changed (the system can be upgraded without changes It can still be used afterwards), while satisfying fast code scanning and better camera effects.
  • FIG. 1 is a software design framework provided by an embodiment of the present application.
  • the photographing application and the code scanning application belong to the application layer software, and the code scanning application and the photographing application are at the same level, and both can pass through the system JNI interface
  • the camera driver is called, and the camera driver then calls the camera parameters or scan code parameters according to the set conditions. It can be seen from FIG. 1 that the code scanning application does not conflict with the photographing application in the existing system, and does not change the interface settings of the existing android system.
  • FIG. 2 is a schematic flowchart of a camera control method provided by an embodiment of the present application. As shown in the figure, the method may include the following steps:
  • Step S201 After receiving an instruction to start the camera of the mobile terminal, check whether preset flag information is turned on.
  • the instruction to start the camera of the mobile terminal may be issued by a photographing application or a code scanning application. Whether it is a photographing application or a scanning application, a system-based API interface is required, and a camera driver is called through a JNI interface, so the instruction to start the camera of the mobile terminal is the system-based API interface of the scanning application or photographing application.
  • the JNI interface calls camera-driven instructions. Since both the code scanning application and the camera application are based on the same interface and call the same camera driver, in order to ensure that the code can be quickly scanned when the camera driver is called through the code scanning application, a better result can be obtained when the camera driver is called through the camera application.
  • This logo information may be preset and may be enabled or disabled based on the code scanning application in the mobile terminal. For example, the status of the code scanning application can be monitored. If the status of the code scanning application is the foreground running state, the preset flag information is on; otherwise, the preset flag information is set to off. status.
  • the enabling or disabling the preset flag information based on the code scanning application in the mobile terminal includes:
  • the preset flag information is turned off.
  • FIG. 3 illustrates how to enable or disable the preset flag information according to the code scanning application.
  • the flag information can be controlled by a variable, and thus can also be a variable flag.
  • the code scanning application After the scanning application is opened, enter the code scanning application and turn on the variable flag at the same time.
  • the code scanning application is running in the foreground; if the code scanning application is switched from the foreground to the background, it may be a code scanning application caused by switching to a photographing application Switching from the foreground to the background, or the code scanning application caused by switching to other applications, can be switched from the foreground to the background.
  • the variable flag will be turned off. If the code scanning application is switched from the background to the foreground, The variable flag can be turned on; when exiting the scanning application, the variable flag needs to be turned off accordingly.
  • the variable flag needs to be turned off. That is, whether it is a normal exit or an abnormal exit, the variable flag needs to be turned off.
  • the preset flag information is based on the scanning code application is turned on or off, so it will not cause changes to the native android system and the original camera application, so that even the system upgrade will not cause the scanning in this application. Code application is unavailable.
  • step S202 if preset flag information is turned on, code scanning parameters are acquired, and an image is collected by the camera based on the code scanning parameters.
  • step S203 if the preset flag information is not turned on, a photographing parameter is acquired, and an image is collected by the camera based on the photographing parameter.
  • the preset flag information is a flag indicating whether the code scanning application is running in the foreground. If it is running in the foreground, it indicates that the instruction to start the camera of the mobile terminal is issued by the code scanning application. Based on the scan parameters, images are collected by the camera. If the camera is no longer running in the foreground, it indicates that the instruction to start the camera of the mobile terminal is issued by a photographing application. The camera captures images.
  • a parameter selection variable flag is set in the camera driver, and the method of making a system node is controlled by the upper-level application. Then the camera driver writes the corresponding parameters according to this parameter variable flag, so that you can open the camera application and use the camera.
  • Parameter open the code scanning application and use the code scanning parameters.
  • collecting the image by the camera based on the scan parameters is: loading the scan parameters by the camera driver, and collecting images based on the scan parameters; Collecting images by the camera with the photographing parameters is: loading the photographing parameters with the camera driver, and acquiring images based on the photographing parameters.
  • the scanning code parameters can be modified based on the photographing parameters. For example, setting variable exposure gain, image brightness, image saturation, etc., and modifying the exposure gain, image brightness, image saturation, etc. in the photographing parameters as the scanning code. parameter.
  • the setting of the photographing parameters is to obtain a better photographing effect.
  • it is to pursue the scanning speed.
  • the image collected by the camera is usually set to a grayscale image. Therefore, the saturation, brightness, and various effects of colors in the image are not pursued by scanning. If you pursue various effects of taking pictures in terms of color, Instead, the original scanned image will be distorted, so that the recognition is slow or unrecognizable during scanning.
  • the obtaining the code scanning parameters based on the photographing parameters includes:
  • the debugging operation and the delay operation of the photographing parameter are closed based on the photographing parameter.
  • the method further includes:
  • the purpose of setting the scanning code parameters is not only to obtain the scanning code image. In fact, after obtaining the scanning code image, it is necessary to perform a decoding operation on the image collected based on the scanning code parameter to obtain the scanning code. The result; and displaying the code scanning result through a display interface of the mobile terminal.
  • the preset flag information is used to determine whether the camera is currently activated by the scanning application or the camera activated by the camera application.
  • the image is collected by the camera based on the scan code parameters, and the image is collected by the camera when the photo is taken.
  • the mobile terminal can be controlled to meet the requirements of accurate code scanning and better photographing effects without adding any hardware.
  • the embodiment of the present application does not modify the photographing application and the original camera driver in the original system, even if the system is upgraded, the problem of system incompatibility will not be caused.
  • the code scanning parameters are obtained on the basis of the original photographing parameters by changing the variables. In this way, there is no need to edit another set of codes, which also saves space.
  • FIG. 4 is a schematic block diagram of a mobile terminal according to an embodiment of the present application. For ease of description, only a part related to the embodiment of the present application is shown.
  • the mobile terminal 4 may be a software unit, a hardware unit, or a combination of hardware and software, which is built into a mobile terminal such as a mobile phone, a tablet computer, or a notebook, or may be integrated into the mobile terminal such as a mobile phone, tablet, or notebook as an independent pendant. in.
  • the mobile terminal 4 includes:
  • a confirmation module 41 configured to check whether preset flag information is turned on after receiving an instruction to start the camera of the mobile terminal;
  • the code scanning module 42 is configured to obtain code scanning parameters if preset flag information is turned on, and collect images through the camera based on the code scanning parameters;
  • the photographing module 43 is configured to acquire photographing parameters if preset flag information is not turned on, and collect an image through the camera based on the photographing parameters.
  • the mobile terminal 4 further includes:
  • the flag information setting module 44 is configured to enable or disable preset flag information based on a code scanning application in the mobile terminal.
  • the flag information setting module 44 is further configured to:
  • the preset flag information is turned off.
  • the confirmation module 41 is further configured to:
  • the code scanning module 42 is further configured to:
  • the photographing module 43 is further configured to:
  • the camera parameters are loaded by the camera driver, and an image is acquired based on the camera parameters.
  • the mobile terminal 4 further includes:
  • the code scanning parameter acquisition module 45 is configured to obtain the code scanning parameters based on the photographing parameters, where the photographing parameters are parameters used when the camera of the mobile terminal takes a picture.
  • the code scanning parameter obtaining module 45 is further configured to:
  • the debugging operation and the delay operation of the photographing parameter are closed based on the photographing parameter.
  • the mobile terminal 4 further includes:
  • a decoding module 46 configured to perform a decoding operation on an image collected based on the scan parameter to obtain a scan result after the image is collected by the camera based on the scan parameter;
  • a display module 47 is configured to display the code scanning result through a display interface of the mobile terminal.
  • FIG. 5 is a schematic block diagram of a mobile terminal according to another embodiment of the present application.
  • the mobile terminal 5 of this embodiment includes: one or more processors 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50.
  • the processor 50 executes the computer program 52
  • the steps in the embodiment of the control method of each camera are implemented, for example, steps S201 to S203 shown in FIG. 2.
  • the processor 50 executes the computer program 52
  • the functions of the modules / units in the above-mentioned embodiment of the mobile terminal are implemented, for example, the functions of modules 41 to 43 shown in FIG. 4.
  • the computer program 52 may be divided into one or more modules / units, and the one or more modules / units are stored in the memory 51 and executed by the processor 50 to complete This application.
  • the one or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 52 in the mobile terminal 5.
  • the computer program 52 may be divided into a confirmation module, a code scanning module, and a photographing module.
  • the confirmation module is configured to check whether preset flag information is turned on after receiving an instruction to start the camera of the mobile terminal;
  • the code scanning module is configured to obtain code scanning parameters if preset flag information is turned on, and collect an image through the camera based on the code scanning parameters;
  • the photographing module is configured to acquire photographing parameters if preset logo information is not turned on, and collect images through the camera based on the photographing parameters.
  • the mobile terminal includes, but is not limited to, a processor 50 and a memory 51.
  • FIG. 5 is only an example of the mobile terminal 5 and does not constitute a limitation on the mobile terminal 5. It may include more or fewer components than shown in the figure, or combine some components, or different Components, for example, the mobile terminal may further include an input device, an output device, a network access device, a bus, and the like.
  • the processor 50 may be a central processing unit (Central Processing Unit (CPU), or other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (Application Specific Integrated Circuits) Specific Integrated Circuit (ASIC), off-the-shelf Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • CPU Central Processing Unit
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuits
  • FPGA off-the-shelf Programmable Gate Array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory 51 may be an internal storage unit of the mobile terminal 5, such as a hard disk or a memory of the mobile terminal 5.
  • the memory 51 may also be an external storage device of the mobile terminal 5, such as a plug-in hard disk, a smart media card (SMC), and a secure digital (SD) provided on the mobile terminal 5. Flash card Card) and so on.
  • the memory 51 may also include both an internal storage unit of the mobile terminal 5 and an external storage device.
  • the memory 51 is configured to store the computer program and other programs and data required by the mobile terminal.
  • the memory 51 may also be used to temporarily store data that has been output or is to be output.
  • the disclosed mobile terminal and method may be implemented in other ways.
  • the mobile terminal embodiments described above are merely schematic.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner, such as multiple units or components. Can be combined or integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional unit.
  • the integrated module / unit When the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the method of the above embodiment, and can also be completed by a computer program instructing related hardware.
  • the computer program can be stored in a computer-readable storage medium. When the program is executed by a processor, the steps of the foregoing method embodiments can be implemented.
  • the computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file, or some intermediate form.
  • the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signals, telecommunication signals, and software distribution media.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electric carrier signals telecommunication signals
  • software distribution media any entity or device capable of carrying the computer program code
  • a recording medium a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signals, telecommunication signals, and software distribution media.

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Abstract

L'invention peut s'appliquer au domaine technique de la commande de caméra et concerne un procédé de commande de caméra, un terminal mobile et un support de stockage lisible par ordinateur. Le procédé consiste à : après réception d'une instruction de démarrage d'une caméra d'un terminal mobile, visualiser si des informations de repère prédéfinies sont ouvertes ; si les informations de repère prédéfinies sont ouvertes, obtenir un paramètre de balayage et, d'après le paramètre de balayage, acquérir une image au moyen de la caméra ; si les informations de repère prédéfinies ne sont pas ouvertes, obtenir un paramètre de photographie et, d'après le paramètre de photographie, acquérir l'image au moyen de la caméra. La présente invention permet d'obtenir simultanément un balayage précis et une photographie de qualité sans augmenter le matériel.
PCT/CN2019/081044 2018-06-11 2019-04-02 Procédé de commande de caméra, terminal mobile et support de stockage lisible par ordinateur WO2019237798A1 (fr)

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CN201810593396.3 2018-06-11
CN201810593396.3A CN108632533B (zh) 2018-06-11 2018-06-11 一种相机的控制方法、移动终端及计算机可读存储介质

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