WO2018076931A1 - Système d'appoint automatique de lumière pour caméra avant et procédé associé - Google Patents

Système d'appoint automatique de lumière pour caméra avant et procédé associé Download PDF

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Publication number
WO2018076931A1
WO2018076931A1 PCT/CN2017/100493 CN2017100493W WO2018076931A1 WO 2018076931 A1 WO2018076931 A1 WO 2018076931A1 CN 2017100493 W CN2017100493 W CN 2017100493W WO 2018076931 A1 WO2018076931 A1 WO 2018076931A1
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WO
WIPO (PCT)
Prior art keywords
brightness
display interface
current
front camera
optimal
Prior art date
Application number
PCT/CN2017/100493
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English (en)
Chinese (zh)
Inventor
黄树伟
Original Assignee
捷开通讯(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 捷开通讯(深圳)有限公司 filed Critical 捷开通讯(深圳)有限公司
Publication of WO2018076931A1 publication Critical patent/WO2018076931A1/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
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/71—Circuitry for evaluating the brightness variation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

Definitions

  • the present invention relates to the field of mobile terminal applications, and in particular, to a front camera camera automatic fill light system and a method thereof.
  • the embodiment of the invention provides a front camera camera automatic light filling system and a method thereof, which can realize automatic light filling when the front camera takes a picture.
  • an embodiment of the present invention provides a method for automatically filling light of a front camera, wherein the method includes:
  • One or more processors are One or more processors;
  • One or more applications wherein the one or more applications are stored in the memory and configured to perform the steps by the processor:
  • the brightness of the display interface is greater than the optimal picture brightness, the brightness of the display interface is reduced to the optimal picture brightness
  • the brightness of the display interface is less than the optimal picture brightness
  • the brightness of the display interface is increased to the optimal picture brightness
  • the step of reducing the brightness of the display interface to the optimal photo-brightness includes:
  • the step of increasing the brightness of the display interface to the optimal picture brightness includes:
  • the method further includes:
  • the automatic fill light function is turned off.
  • the embodiment of the present invention further provides a front camera camera automatic light filling system, which includes:
  • One or more processors are One or more processors;
  • One or more applications wherein the one or more applications are stored in the memory and configured to be executed by the processor;
  • Displaying an interface brightness acquiring module configured to acquire brightness of a display interface of the mobile terminal
  • the display interface brightness adjustment module is configured to adjust the brightness of the current display interface to the optimal picture brightness.
  • the front camera photographing automatic light filling system wherein the method further comprises:
  • the management module is configured to enable or disable the automatic fill light function according to the current ambient brightness of the mobile terminal.
  • the front camera photographing automatic light filling system wherein the method further comprises:
  • Preset module for pre-setting the optimal photo brightness.
  • the front camera photographing automatic light filling system wherein the display interface brightness adjusting module comprises:
  • a brightness comparison unit for comparing the brightness of the display interface with the optimal picture brightness
  • a current control unit for controlling the rise or fall of the current of the display interface to increase or decrease the brightness of the display interface.
  • the front camera photographing automatic fill light system wherein the management module comprises:
  • An ambient brightness detecting unit configured to detect a current ambient brightness of the mobile terminal
  • the function opening unit is used to turn on the automatic fill light function when the ambient brightness is lower than the optimal picture brightness.
  • an embodiment of the present invention further provides a method for automatically filling light of a front camera, wherein the method includes the following steps:
  • the method further includes:
  • the step of turning on or off the automatic light filling function according to the current ambient brightness of the mobile terminal further includes:
  • the step of adjusting the brightness of the current display interface to the optimal photo-brightness includes:
  • the step of turning on or off the automatic light filling function according to the current ambient brightness of the mobile terminal includes:
  • the automatic fill light function is turned on
  • the automatic fill light function is turned off.
  • the step of controlling the increase or decrease of the current of the display interface to increase or decrease the brightness of the display interface includes:
  • the current of the display interface is controlled to reduce the current of the display interface to the optimal picture brightness
  • the current of the display interface when the current of the display interface is raised to the optimal picture brightness is controlled.
  • the present invention discloses a front camera camera automatic light filling system and method thereof, wherein the system includes: a display interface brightness acquiring module for acquiring brightness of a display interface of the mobile terminal; and a display interface brightness adjusting module
  • the method is used to adjust the brightness of the current display interface to the optimal picture brightness.
  • the invention obtains the interface brightness of the mobile terminal in the case of dark light, and adjusts the brightness of the interface of the mobile terminal to the optimal picture brightness. Automatic fill light when the front camera takes a picture.
  • FIG. 1 is a structural block diagram of a pre-camera photo automatic fill light system according to an embodiment of the present invention.
  • FIG. 2 is a structural block diagram of a display interface brightness adjustment module of a front camera photo automatic fill light system according to an embodiment of the present invention.
  • FIG. 3 is a structural block diagram of a management module of a front camera photo automatic fill light system according to an embodiment of the present invention.
  • FIG. 4 is a flow chart of steps of a method for automatically filling a photo of a front camera according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of another implementation of a method for automatically filling a photo of a front camera according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of still another implementation of a method for automatically filling a photo of a front camera according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the present invention provides a front camera camera automatic light supplementing system and a method thereof.
  • the present invention will be further described in detail below. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • FIG. 1 is a structural block diagram of a front camera taking photo automatic light filling system according to an embodiment of the present invention, and a front camera taking photo automatic light filling system, which includes:
  • the display interface brightness obtaining module 100 is configured to obtain the brightness of the current display interface of the mobile terminal
  • the display interface brightness adjustment module 200 is configured to adjust the brightness of the current display interface to the optimal picture brightness.
  • the invention discloses a front camera photo automatic light filling system, which is improved in the prior art, the front camera is photographed under light dark conditions, and includes a display interface brightness acquiring module 100 and a display interface brightness adjusting module. 200, wherein the display interface brightness acquisition module 100 is configured to acquire the brightness of the current display interface of the mobile terminal, and the display interface brightness adjustment module 200 is configured to adjust the brightness of the current display interface to the optimal picture brightness.
  • the display interface brightness acquisition module 100 is configured to acquire the brightness of the current display interface of the mobile terminal
  • the display interface brightness adjustment module 200 is configured to adjust the brightness of the current display interface to the optimal picture brightness.
  • the front camera photographing automatic fill light system further includes:
  • the management module 300 is configured to enable or disable the automatic fill light function according to the current ambient brightness of the mobile terminal.
  • the front camera photographing automatic light filling system of the invention further increases or decreases the automatic fill light function, and in the invention, the automatic fill light function is turned on or off by the ambient brightness, and the ambient brightness is bright.
  • the ambient brightness is dark, it is turned on, and the intelligent control is turned on or off, which is more intelligent, and also saves energy.
  • the front camera photographing automatic fill light system further includes:
  • the preset module 400 is configured to preset an optimal photographing brightness.
  • the front camera takes a picture of the automatic light filling system.
  • different users may have different understandings of the optimal picture brightness. For example, for a user with a darker skin tone, the user may want to be whiter and need greater brightness.
  • the invention further comprises a preset module, which can preset the optimal photographing brightness according to the user's selection. In a specific manner, when the photograph is taken, when the optimal brightness is reached, the photograph is taken, and the brightness of the photo is selected as the best. Photo brightness.
  • the front camera photographing automatic fill light system is a structural block diagram of the display interface brightness adjustment module.
  • the display interface brightness adjustment module 200 includes:
  • the brightness comparison unit 201 is configured to compare the brightness of the display interface with the optimal picture brightness
  • the current control unit 202 is configured to control the rise or fall of the current of the display interface to increase or decrease the brightness of the display interface.
  • the front camera photo automatic light filling system of the present invention is used for adjusting the brightness of the display interface to enable the user to achieve the best photographing brightness when photographing with the front camera.
  • the first prerequisite of the present invention is that the automatic fill light function is turned on when the light is dark. Therefore, after comparing the brightness of the display interface with the optimal picture brightness, the brightness of the display interface is not necessarily consistent with the ambient brightness. After comparing the brightness of the display interface with the optimal picture brightness, when the brightness of the display interface is greater than the optimal picture brightness, it is necessary to reduce the brightness of the display interface to the optimal picture brightness. When the brightness of the display interface is less than the optimal picture brightness, it is necessary to increase the brightness of the display interface to the optimal picture brightness, and specifically control the brightness of the display interface by controlling the current of the display interface.
  • the current control unit controls the current of the display interface to rise.
  • I1 rises to I0 the brightness of the display interface at this time is the optimal photographing brightness.
  • the display interface is set.
  • the current is I2, and the current of the display interface when the best photographing brightness is I0. At this time, I2>I0, therefore, I2 needs to be reduced to I0. Therefore, the current control unit controls the current of the display interface to decrease, and when I2 is lowered to I0. At this time, the brightness of the display interface is the best picture brightness.
  • the front camera camera automatic fill light system is a structural block diagram of the management module, wherein the management module 300 includes:
  • the ambient brightness detecting unit 301 is configured to detect a current ambient brightness of the mobile terminal
  • the function opening unit 302 is configured to turn on the automatic fill light function when the ambient brightness is lower than the optimal picture brightness.
  • the front camera takes an automatic light filling system according to the present invention, and further, the automatic light filling function is turned on in a case where the light is dark, and in the case where the light is bright, the automatic light filling function is not required to be turned on.
  • the implementation is: obtaining the current ambient brightness of the mobile terminal by using the ambient brightness detecting unit in the management module, and after obtaining the current ambient brightness, comparing the current ambient brightness with the optimal photo brightness, when the current ambient brightness is greater than the optimal photo brightness, It indicates that the ambient brightness is sufficient at this time, and no fill light is needed. When the ambient brightness is lower than the optimal picture brightness, it indicates that the ambient brightness is insufficient at this time, and the fill light needs to be performed. Therefore, the automatic fill light function is turned on, and the display interface brightness is obtained. Modules, display interface brightness adjustment modules and other modules and units will be turned on. When the light is sufficient, the above modules will stop working, no need to fill light, save energy and save electricity.
  • the present invention also discloses a method for automatically filling light of a front camera, as shown in FIG. 4, which is a flow chart of steps for automatically charging a light of the front camera, wherein the method includes the following steps:
  • step S1 further includes:
  • S01 Turn on or turn off the automatic fill light function according to the current ambient brightness of the mobile terminal.
  • step S01 further includes:
  • the pre-camera camera auto-filling method is the flowchart of the step S2, wherein the step S2 includes:
  • S202 Control an increase or decrease of a current of the display interface to increase or decrease the brightness of the display interface.
  • the pre-camera camera auto-filling method is a flowchart of the step S01, wherein the step S01 includes:
  • the brightness of the display interface is greater than the optimal picture brightness, the brightness of the display interface is reduced to the optimal picture brightness
  • the brightness of the display interface is less than the optimal picture brightness, the brightness of the display interface is increased to the optimal picture brightness;
  • the automatic fill light function is turned off.
  • the step of reducing the brightness of the display interface to the optimal picture brightness includes:
  • the step of increasing the brightness of the display interface to the optimal picture brightness includes:
  • the present invention discloses a front camera camera automatic fill light system and a method thereof, wherein the front camera photo automatic fill light system comprises: a display interface brightness acquisition module, which is used to obtain a display of the mobile terminal Brightness of the interface; display interface brightness adjustment module, used to adjust the brightness of the current display interface to the best picture brightness; the invention obtains the interface brightness of the mobile terminal in the case of dark light, and the interface of the mobile terminal The brightness is adjusted to the best picture brightness, and the automatic fill light is taken when the front camera takes a picture.
  • a display interface brightness acquisition module which is used to obtain a display of the mobile terminal Brightness of the interface
  • display interface brightness adjustment module used to adjust the brightness of the current display interface to the best picture brightness
  • the invention obtains the interface brightness of the mobile terminal in the case of dark light, and the interface of the mobile terminal The brightness is adjusted to the best picture brightness, and the automatic fill light is taken when the front camera takes a picture.
  • Embodiments of the present invention also provide a storage medium storing a computer program, wherein the computer program causes the computer to perform a front camera taking auto fill method as described above.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Read only memory (ROM, Read Only Memory), Random Access Memory (RAM), disk or CD.
  • ROM Read only memory
  • RAM Random Access Memory
  • FIG. 7 is a block diagram showing a specific structure of a mobile terminal provided by an embodiment of the present invention.
  • the mobile terminal can be used to implement the pre-camera photo automatic fill light system and method provided in the foregoing embodiments.
  • the mobile terminal 1200 can be a smartphone or a tablet.
  • the mobile terminal 1200 may include RF (Radio) Frequency (RF) circuit 110, memory 120 including one or more (only one shown) computer readable storage medium, input unit 130, display unit 140, sensor 150, audio circuit 160, transmission module 170, including There are one or more (only one shown in the figure) processing core processor 180 and power supply 190 and the like. It will be understood by those skilled in the art that the structure of the mobile terminal 1200 shown in FIG. 7 does not constitute a limitation of the mobile terminal 1200, and may include more or less components than those illustrated, or combine some components, or different components. Arrangement. among them:
  • the RF circuit 110 is configured to receive and transmit electromagnetic waves, and realize mutual conversion between electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices.
  • the RF circuit 110 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, a memory, and the like.
  • SIM Subscriber Identity Module
  • the RF circuit 110 can communicate with various networks such as the Internet, an intranet, a wireless network, or communicate with other devices over a wireless network.
  • the wireless network described above may include a cellular telephone network, a wireless local area network, or a metropolitan area network.
  • the above wireless networks may use various communication standards, protocols and technologies, including but not limited to global mobile communication systems (Global System for Mobile Communication, GSM), Enhanced Data GSM Environment (Enhanced Data GSM Environment, EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (Code) Division Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Wireless Fidelity (Wi-Fi) (eg American Institute of Electrical and Electronics Engineers Standard IEEE 802.11a, IEEE) 802.11b, IEEE802.11g and/or IEEE 802.11n), Voice over Internet Protocol (Voice over Internet Protocol, VoIP), Worldwide Interoperability for Microwave Access, Wi-Max, other protocols for mail, instant messaging, and short messages, as well as any other suitable communication protocol, may even include protocols that are not currently being developed.
  • GSM Global System for Mobile Communication
  • EDGE Enhanced Data GSM Environment
  • WCDMA Wideband Code Division Multiple Access
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • Time Division Multiple Access
  • the memory 120 can be used to store software programs and modules, such as the pre-camera camera auto-filling system and the program instructions/modules corresponding to the method in the above embodiment, and the processor 180 executes by executing the software programs and modules stored in the memory 120.
  • Various function applications and data processing that is, the function of automatically charging the front camera.
  • Memory 120 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 120 can further include memory remotely located relative to processor 180, which can be connected to mobile terminal 1200 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the input unit 130 can be configured to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.
  • input unit 130 can include touch-sensitive surface 131 as well as other input devices 132.
  • Touch-sensitive surface 131 also referred to as a touch display or trackpad, can collect touch operations on or near the user (such as a user using a finger, stylus, etc., on any suitable object or accessory on touch-sensitive surface 131 or The operation near the touch-sensitive surface 131) and driving the corresponding connecting device according to a preset program.
  • the touch-sensitive surface 131 can include two portions of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 180 is provided and can receive commands from the processor 180 and execute them.
  • the touch-sensitive surface 131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 130 can also include other input devices 132.
  • other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 140 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the mobile terminal 1200, which can be composed of graphics, text, icons, video, and any combination thereof.
  • the display unit 140 may include a display panel 141, and optionally, an LCD (Liquid may be used) Crystal Display, LCD (Organic Light-Emitting)
  • the display panel 141 is configured in the form of a Diode, an organic light emitting diode, or the like.
  • touch-sensitive surface 131 may cover the display panel 141, and when the touch-sensitive surface 131 detects a touch operation thereon or nearby, it is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 according to the touch event The type provides a corresponding visual output on display panel 141.
  • touch-sensitive surface 131 and display panel 141 are implemented as two separate components to implement input and input functions, in some embodiments, touch-sensitive surface 131 can be integrated with display panel 141 for input. And output function.
  • Mobile terminal 1200 may also include at least one type of sensor 150, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light, and the proximity sensor may close the display panel 141 when the mobile terminal 1200 moves to the ear. And / or backlight.
  • the gravity acceleration sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity.
  • Other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like that can be configured in the mobile terminal 1200 are not described herein.
  • the audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the mobile terminal 1200.
  • the audio circuit 160 can transmit the converted electrical data of the received audio data to the speaker 161 for conversion to the sound signal output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal by the audio circuit 160. After receiving, it is converted into audio data, and then processed by the audio data output processor 180, transmitted to the terminal, for example, via the RF circuit 110, or outputted to the memory 120 for further processing.
  • the audio circuit 160 may also include an earbud jack to provide communication of the peripheral earphones with the mobile terminal 1200.
  • the mobile terminal 1200 can help the user to send and receive emails, browse web pages, access streaming media, etc. through the transmission module 170 (eg, Wi-Fi module), which provides wireless broadband Internet access to the user.
  • the transmission module 170 eg, Wi-Fi module
  • FIG. 7 shows the transmission module 170, it can be understood that it does not belong to the essential configuration of the mobile terminal 1200, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 180 is a control center of the mobile terminal 1200 that connects various portions of the entire handset with various interfaces and lines, by running or executing software programs and/or modules stored in the memory 120, and recalling data stored in the memory 120.
  • the various functions and processing data of the mobile terminal 1200 are executed to perform overall monitoring of the mobile phone.
  • the processor 180 may include one or more processing cores; in some embodiments, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and For applications, etc., the modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 180.
  • the mobile terminal 1200 also includes a power source 190 (such as a battery) that powers the various components.
  • the power source can be logically coupled to the processor 180 through a power management system to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • Power supply 190 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
  • the mobile terminal 1200 may further include a camera (such as a front camera, a rear camera), a Bluetooth module, and the like, and details are not described herein.
  • the display unit of the mobile terminal is a touch screen display
  • the mobile terminal further includes a memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be one or one
  • the above processor executes one or more programs that include instructions for performing the following operations:
  • the brightness of the display interface is greater than the optimal picture brightness, the brightness of the display interface is reduced to the optimal picture brightness
  • the brightness of the display interface is less than the optimal picture brightness
  • the brightness of the display interface is increased to the optimal picture brightness
  • the processor is further configured to perform the following steps:
  • the processor is further configured to perform the following steps:
  • the processor is further configured to perform the following steps:
  • the automatic fill light function is turned off.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

Système d'appoint automatique de lumière pour caméra avant et procédé associé, comportant les étapes consistant: lors de l'utilisation d'une caméra avant pour prendre une photo, à acquérir une luminosité actuelle d'interface d'affichage d'un terminal mobile lorsqu'une luminosité ambiante est inférieure à une luminosité optimale de photo; diminuer la luminosité d'interface d'affichage jusqu'à la luminosité optimale de photo lorsque la luminosité d'interface d'affichage est supérieure à la luminosité optimale de photo; et augmenter la luminosité d'interface d'affichage jusqu'à la luminosité optimale de photo lorsque la luminosité d'interface d'affichage est inférieure à la luminosité optimale de photo.
PCT/CN2017/100493 2016-10-26 2017-09-05 Système d'appoint automatique de lumière pour caméra avant et procédé associé WO2018076931A1 (fr)

Applications Claiming Priority (2)

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CN201610946866.0A CN106506979A (zh) 2016-10-26 2016-10-26 一种前置摄像头拍照自动补光系统及其方法
CN201610946866.0 2016-10-26

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