WO2017215262A1 - Procédé et système de photographie basés sur un éclairage d'écran supplémentaire - Google Patents

Procédé et système de photographie basés sur un éclairage d'écran supplémentaire Download PDF

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Publication number
WO2017215262A1
WO2017215262A1 PCT/CN2017/071089 CN2017071089W WO2017215262A1 WO 2017215262 A1 WO2017215262 A1 WO 2017215262A1 CN 2017071089 W CN2017071089 W CN 2017071089W WO 2017215262 A1 WO2017215262 A1 WO 2017215262A1
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WO
WIPO (PCT)
Prior art keywords
brightness
screen
mode
fill
ambient light
Prior art date
Application number
PCT/CN2017/071089
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English (en)
Chinese (zh)
Inventor
杨超文
孔德尚
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
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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 WO2017215262A1 publication Critical patent/WO2017215262A1/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
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • 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
    • 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 terminal technologies, and in particular, to a photographing method and system based on screen fill light.
  • the camera has become the standard configuration of most mobile terminals.
  • the camera function in the mobile terminal is also more and more powerful, which brings convenience to users who like to take pictures.
  • Many mobile terminal users like to use the front camera on the mobile terminal to shoot, but the front camera of the existing mobile terminal is not equipped with a fill light, and self-timer in the night or poor lighting environment may be difficult due to insufficient exposure. Get the ideal selfie effect.
  • the front camera In order to obtain a proper exposure when the user takes a self-portrait, the front camera is usually filled by lighting the screen (controlling the display screen to display the appropriate brightness). However, by manually setting the fill brightness, the user needs to operate multiple times. In order to determine the appropriate fill brightness, this will cause the user to wait for a long time when using this function.
  • the technical problem to be solved by the present invention is that, in view of the deficiencies of the prior art, a photographing method and a system based on screen fill light are provided to solve the problem that the existing screen fill light photographing needs to manually determine the fill light brightness, thereby causing the user to use this function. It takes a long time to wait.
  • a photographing method based on screen fill light which includes:
  • the battery mode is the normal mode, determining that the screen fill mode is a normal fill mode, and if the battery mode is a power save mode, determining that the screen fill mode is a low brightness fill mode;
  • the control screen fills the light with the determined fill light of the screen, and controls the camera to capture the image and generate a photo when the screen is filled.
  • the screen fill light-based photographing method wherein the determining the screen fill light brightness according to the ambient light brightness comprises:
  • the brightness of the screen fill light is determined according to the ambient light brightness and the screen fill light mode.
  • the screen fill light-based photographing method wherein the determining the screen fill light brightness according to the ambient light brightness and the screen fill light mode comprises:
  • the brightness of the screen fill light is determined according to the ambient light brightness and the photographing brightness threshold.
  • a photographing method based on screen fill light comprising:
  • the control screen fills the light with the determined brightness of the screen
  • the method for photographing the light based on the screen, wherein the detecting the brightness of the ambient light when the camera is turned on, and comparing the brightness of the ambient light with the preset brightness threshold includes:
  • the ambient light brightness and the screen fill mode are obtained, wherein the screen fill mode is a low brightness fill mode and a normal fill mode;
  • the ambient light brightness is compared with a preset brightness threshold corresponding to the screen fill mode.
  • the method for photographing light based on a screen fill light wherein when the brightness of the ambient light is lower than a preset brightness threshold, determining the brightness of the fill light according to the brightness of the ambient light comprises:
  • the screen fill light brightness is determined according to the ambient light brightness and the screen fill mode.
  • the method for photographing a fill light based on a screen fill light comprises:
  • the brightness of the screen fill light is determined according to the ambient light brightness and the photographing brightness threshold.
  • the method for photographing the light based on the screen wherein when the camera is turned on, the ambient light brightness and the screen fill mode are:
  • the ambient light brightness and the battery mode of the smart terminal are obtained.
  • the screen fill mode is determined according to the battery mode.
  • determining the screen fill light mode according to the battery mode comprises:
  • the battery mode is the normal mode, determining that the screen fill mode is a normal fill mode
  • the screen fill mode is a low brightness fill mode.
  • a photographing system based on screen fill light comprising:
  • An acquiring module configured to acquire ambient light brightness when detecting that the camera is turned on, and compare the ambient light brightness with a preset brightness threshold;
  • a determining module configured to determine a screen fill light brightness according to the ambient light brightness when the ambient light brightness is lower than a preset brightness threshold
  • a first control module configured to control the screen to fill light with the determined brightness of the screen
  • a second control module is configured to control the camera to capture an image and generate a photo.
  • the screen-filling-based photographing system wherein the acquiring module specifically includes:
  • An acquiring unit configured to acquire an ambient light brightness and a screen fill mode when the camera is turned on, wherein the screen fill mode is a low brightness fill mode and a normal fill mode;
  • a comparing unit configured to compare the ambient light brightness with a preset brightness threshold corresponding to the screen fill mode.
  • the screen fill light-based photographing system wherein the determining module comprises a determining unit, configured to:
  • the screen fill light brightness is determined according to the ambient light brightness and the screen fill mode.
  • the method for photographing based on screen fill light wherein the determining unit comprises:
  • a second acquiring sub-unit configured to acquire a photo brightness threshold corresponding to the screen fill mode
  • a second determining subunit configured to determine a screen fill light brightness according to the ambient light brightness and the photographing brightness threshold.
  • the screen-filling-based photographing system wherein the acquiring unit specifically includes:
  • a first acquiring subunit configured to detect ambient light brightness and a battery mode of the smart terminal when the camera is turned on
  • a first determining subunit configured to determine a screen fill mode according to the battery mode.
  • the screen fill light-based photographing system wherein the first determining subunit is configured to:
  • the battery mode is the normal mode, determining that the screen fill mode is a normal fill mode; if the battery mode is a power save mode, determining that the screen fill mode is a low brightness fill mode.
  • the present invention provides a photographing method and system based on screen fill light, the method comprising: detecting an ambient light brightness when the camera is turned on, and comparing the ambient light brightness with a preset brightness threshold; When the ambient light brightness is lower than the preset brightness threshold, the screen fill light brightness is determined according to the ambient light brightness; the control screen fills the light with the determined screen fill light brightness; the camera is controlled to capture an image, and a photo is generated.
  • the invention automatically determines the fill light brightness according to the ambient light brightness, and solves the problem that the existing screen fill light photograph needs to manually determine the fill light brightness, and the user needs to wait for a long time when using this function.
  • FIG. 1 is a flow chart of a preferred embodiment of a method for photographing based on screen fill light provided by the present invention.
  • FIG. 2 is a flowchart of Embodiment 1 of a method for photographing based on screen fill light provided by the present invention.
  • FIG. 3 is a schematic structural diagram of a screen-filling-based photographing system provided by the present invention.
  • FIG. 4 is another structural schematic diagram of a screen fill light-based photographing system provided by the present invention.
  • the present invention provides a photographing method and system based on screen fill light.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. 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 flow chart of a preferred embodiment of a method for photographing based on screen fill light. The method includes:
  • the camera refers to a front camera or a rotatable camera whose current position is on the front of the mobile terminal.
  • the front camera or the rotatable camera whose current position is on the front of the mobile terminal is used, the ambient light brightness is obtained.
  • the smart terminal with self-timer function is commonly used, and the front camera is configured to supplement. Lights, so that you can't get clear photos in the darker places, so you can use the screen to fill the front camera.
  • the ambient light brightness may be detected by using an ambient light sensor (also referred to as a light sensor) configured in the mobile terminal, or other devices integrated with the ambient light brightness detecting function (such as a color temperature sensor), to provide a determination of the brightness of the screen fill light. Reference data.
  • an ambient light sensor also referred to as a light sensor
  • the ambient light brightness detecting function such as a color temperature sensor
  • the ambient light brightness is compared with a preset brightness threshold, which is a necessary condition for determining whether the screen fill light needs to be activated.
  • the screen fill function will only be activated when the ambient light level is less than the preset brightness threshold.
  • the preset brightness threshold may be the default of the system. For example, the designer may use the method of research and experiment to determine the corresponding picture brightness as the preset brightness threshold when the picture is better in the case of the screen fill light, which is not specifically limited herein. .
  • the screen fill light brightness may be determined according to the ambient light brightness and the photographing brightness threshold value, and the screen fill light The brightness can be the difference between the picture brightness threshold and the ambient light level.
  • the photographing brightness threshold may be set by the system by default. For example, the designer may determine, by means of research and experiment, the corresponding photographing brightness when the photographing effect is better in the case of the screen fill light, and determine the photographing brightness as the photographing.
  • the brightness threshold is used to write the preset photo brightness threshold to the mobile terminal.
  • the mobile terminal detects that the screen fill event is triggered, the mobile terminal can directly retrieve the preset photo brightness threshold for determining the screen fill light. brightness.
  • the photographing brightness of different ambient light levels can be regarded as different pre-preparations.
  • the mobile terminal detects that the screen fill light event is triggered the first correspondence relationship list is queried according to the current ambient light brightness, and the current preset photo brightness threshold is obtained, which is used to determine the screen fill light brightness.
  • the mobile terminal may set different camera modes, the corresponding camera brightness is different for different camera modes when the screen fills light, and the corresponding camera brightness is different in different camera modes.
  • the corresponding photographing brightness is used as the photographing brightness threshold, and the second corresponding relationship list of different ambient light brightnesses and different preset photographing brightness thresholds is listed according to the obtained different preset photographing brightness threshold values, and the second The corresponding relationship list is written to the mobile terminal.
  • the mobile terminal detects that the screen fill light event is triggered, the mobile terminal queries the second corresponding relationship list according to the current ambient light brightness to obtain the current preset photo brightness threshold value, which is used for the current preset photo brightness threshold. Determine the brightness of the screen fill light.
  • the control screen fills the light with the determined brightness of the screen.
  • the mobile terminal controls the screen of the mobile terminal at a suitable timing (such as when the screen fill light button is triggered or the camera button is triggered), and controls the screen according to the determined screen fill light brightness. Brightness.
  • the mobile terminal can control the camera to capture the exposed image during the fill light process, and the captured image is processed through a series of processes such as encoding of the mobile terminal to generate a photo.
  • FIG. 2 is a schematic flowchart of a method for photographing based on screen fill light according to Embodiment 2 of the present invention.
  • the present embodiment is based on the above embodiment, and the screen fill light brightness is optimized.
  • the method includes:
  • the normal fill mode is when the smart terminal battery mode is in the normal mode, the brightness of the screen is determined according to the ambient brightness according to the existing fill light scheme; and the low brightness fill mode is when the smart terminal is in the power save mode.
  • the battery power consumption can be reduced, the standby time can be ensured, and the fill light intensity can be enhanced by increasing the exposure time, and a photo with good shooting effect can also be obtained.
  • the screen fill mode can be determined according to a battery mode.
  • the screen fill mode is a normal fill mode; when the battery mode is a power save mode, the screen fills
  • the light mode is a low brightness fill mode. Therefore, before the screen fill mode is acquired, a process of determining the battery mode may be further included, which may be:
  • H201 When detecting that the camera is turned on, acquiring the battery mode of the smart terminal.
  • the screen fill mode is a normal fill mode.
  • the screen fill mode is a low brightness fill mode.
  • S202 Determine a corresponding preset brightness threshold according to the screen fill mode, and compare the ambient light brightness with a preset brightness threshold corresponding to the screen fill mode.
  • a preset brightness threshold corresponding to each screen fill mode is set in advance, and the preset brightness thresholds may be the same or different.
  • the correspondence between the screen fill mode and the preset brightness threshold is established in advance, which may be: the normal fill mode is for the first preset brightness threshold, and the low brightness fill mode is for the second preset brightness threshold.
  • the second preset brightness threshold is greater than the first preset brightness threshold, so that the number of times of low-light fill mode screen fill light can be reduced, and the battery mode is met.
  • the preset brightness threshold is determined as a first preset brightness threshold according to the corresponding relationship between the screen fill mode and the preset brightness threshold, and the ambient light brightness is compared with the first preset brightness threshold.
  • the screen fill mode is the low-brightness fill mode
  • determining the preset brightness threshold as the second preset brightness threshold according to the corresponding relationship between the screen fill mode and the preset brightness threshold, and the ambient light brightness and the second preset brightness The thresholds are compared.
  • a photo preset brightness threshold corresponding to the screen fill mode is obtained, according to the ambient light brightness and the screen fill light
  • the photo preset brightness threshold corresponding to the mode determines the screen fill brightness.
  • the camera preset brightness threshold corresponding to each screen fill mode is preset, and the corresponding relationship between the screen fill mode and the preset brightness threshold is established in advance, which may be: the normal fill mode for the first camera preset brightness threshold, low brightness compensation
  • the light mode presets the brightness threshold for the second photographing, and the second photographing preset brightness threshold is smaller than the first photographing preset brightness threshold, so that the brightness of the screen fill light brightness can be reduced, and the energy consumption during the fill light is reduced.
  • the control screen fills the light with the determined brightness of the screen.
  • determining whether the fill light needs to be performed may be implemented by the following process, which specifically includes: separately setting the ambient light brightness to a plurality of levels; and when detecting that the camera is turned on, acquiring the ambient light brightness, acquiring the The ambient light brightness level to which the ambient light brightness belongs is determined according to the ambient light brightness level, whether the light fill is required, and the screen fill light function is triggered when the fill light is required, and then the screen fill light mode is obtained by the method of the first embodiment to determine the fill light. Brightness, the camera captures the image under the fill of the screen and generates a photo. This can avoid the step of comparing the ambient light brightness with the preset brightness threshold in real time, reducing the energy consumption of the photographing and improving the standby time of the terminal.
  • the screen fill light brightness in different screen fill mode can be graded in advance, and the corresponding relationship between the screen fill light mode, the screen fill light brightness level, and the ambient light brightness level is determined, and the normal fill mode and the normal mode are determined.
  • the correspondence between the screen fill brightness level and the ambient light level is stored as a first list, and the correspondence between the low brightness fill mode, the low light mode, and the ambient light level is stored as a second list, when determined
  • the screen fill light brightness level is searched according to the screen fill mode and the ambient light brightness, and the camera is controlled to capture an image and generate a photo under the screen fill light.
  • the screen does not need to adjust the display brightness, and only needs to control the exposure time to take a photo with better effect. It can avoid adjusting the brightness of the screen in real time as the brightness of the ambient light changes, reducing the energy consumption of the camera and improving the standby time of the terminal.
  • the invention also provides a photographing system based on screen fill light, as shown in FIG. 3 , which is a structural schematic diagram of a photographing system based on screen fill light, which comprises:
  • the obtaining module 100 is configured to acquire ambient light brightness when detecting that the camera is turned on, and compare the ambient light brightness with a preset brightness threshold.
  • the determining module 200 is configured to determine a screen fill light brightness according to the ambient light brightness when the ambient light brightness is lower than a preset brightness threshold.
  • the first control module 300 is configured to control the screen to fill light with the determined brightness of the screen fill light.
  • the second control module 400 is configured to control the camera to capture an image and generate a photo.
  • FIG. 4 is another structural schematic diagram of the screen-filling-based photographing system, the screen-filling-based photographing system, wherein the obtaining module 100 specifically includes:
  • the acquiring unit 101 is configured to acquire an ambient light brightness and a screen fill mode when the camera is turned on, wherein the screen fill mode is a low brightness fill mode and a normal fill mode;
  • the comparing unit 102 is configured to compare the ambient light brightness with a preset brightness threshold corresponding to the screen fill mode.
  • the screen-filling-based photographing system wherein the determining module 200 includes a determining unit 201, configured to:
  • the screen fill light brightness is determined according to the ambient light brightness and the screen fill mode.
  • the screen-filling-based photographing system wherein the obtaining unit 101 specifically includes:
  • the first obtaining sub-unit 1011 is configured to detect ambient light brightness and a battery mode of the smart terminal when the camera is turned on.
  • the first determining subunit 1012 is configured to determine a screen fill mode according to the battery mode.
  • the screen-filling-based photographing system wherein the first determining sub-unit 1012 is configured to: if the battery mode is a normal mode, determine that the screen fill mode is a normal fill mode; if the battery mode is a province In the electrical mode, it is determined that the screen fill mode is a low brightness fill mode.
  • the method of photographing based on screen fill light wherein the determining unit 201 comprises:
  • the second obtaining sub-unit 2011 is configured to acquire a photographing brightness threshold corresponding to the screen fill mode.
  • the second determining subunit 2012 is configured to determine a screen fill light brightness according to the ambient light brightness and the photographing brightness threshold.
  • the disclosed systems and methods may be implemented in other manners.
  • the system embodiment described above is merely illustrative.
  • the division of the module is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, system or unit, and may be electrical, mechanical or otherwise.
  • 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 to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, and a read only memory (Read-Only) Memory, ROM, random access memory (RAM), disk or optical disc, and other media that can store program code.

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Abstract

L'invention concerne un procédé et un système de photographie basés sur un éclairage d'écran supplémentaire. Le procédé comprend les étapes suivantes consistant : lors de la détection qu'une caméra est allumée, à acquérir la luminosité de la lumière ambiante, et à comparer la luminosité de la lumière ambiante à un seuil de luminosité prédéfini; lorsque la luminosité de la lumière ambiante est inférieure au seuil de luminosité prédéfini, à déterminer la luminosité d'éclairage d'écran supplémentaire en fonction de la luminosité de lumière ambiante; à commander l'écran pour effectuer un éclairage supplémentaire au moyen de la luminosité d'éclairage d'écran supplémentaire déterminée; et à commander l'appareil photo pour capturer une image et générer une photo.
PCT/CN2017/071089 2016-06-15 2017-01-13 Procédé et système de photographie basés sur un éclairage d'écran supplémentaire WO2017215262A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610417157.3A CN105979125B (zh) 2016-06-15 2016-06-15 一种基于屏幕补光的拍照方法及系统
CN201610417157.3 2016-06-15

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