WO2014044076A1 - 具有自动曝光补偿功能的移动终端及自动曝光补偿方法 - Google Patents

具有自动曝光补偿功能的移动终端及自动曝光补偿方法 Download PDF

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WO2014044076A1
WO2014044076A1 PCT/CN2013/079145 CN2013079145W WO2014044076A1 WO 2014044076 A1 WO2014044076 A1 WO 2014044076A1 CN 2013079145 W CN2013079145 W CN 2013079145W WO 2014044076 A1 WO2014044076 A1 WO 2014044076A1
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Prior art keywords
exposure compensation
ambient brightness
lux
compensation value
mobile terminal
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PCT/CN2013/079145
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English (en)
French (fr)
Inventor
谢俊麒
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惠州Tcl移动通信有限公司
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Publication of WO2014044076A1 publication Critical patent/WO2014044076A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70Circuitry for compensating brightness variation in the scene
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70Circuitry for compensating brightness variation in the scene
    • H04N23/71Circuitry for evaluating the brightness variation

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a mobile terminal with automatic exposure compensation function and an automatic exposure compensation method.
  • each exposure value includes a brightness gain value and an exposure light value.
  • the existing automatic exposure method searches for the full range from all the exposure values, and finally determines the corresponding exposure value for automatic. exposure.
  • the exposure compensation value can also be adjusted manually when the exposure value is insufficient, as shown in Figure 1.
  • the effect of exposure compensation is to increase the exposure value (such as adjusting +1EV, +2EV) when the ambient light source is dark, so that the photograph is brighter.
  • reduce the exposure value (such as adjustment - 1EV, -2EV) makes the picture darker to increase the sharpness of the picture.
  • the existing exposure compensation values are manually adjusted, and cannot be set according to the ambient brightness, and the photos with the best exposure effect cannot be taken, and the adjustment method is inconvenient.
  • an object of the present invention is to provide a mobile terminal with an automatic exposure compensation function and an automatic exposure compensation method, which can automatically set an exposure compensation value according to the ambient brightness, thereby improving the exposure effect of the photo.
  • a mobile terminal having an automatic exposure compensation function comprising: a photoelectric sensing device for acquiring ambient brightness, a processor and a camera module; wherein the photoelectric sensing device and the camera module are respectively connected to the processor;
  • the processor includes:
  • An analog-to-digital converter for performing analog-to-digital conversion on ambient brightness obtained by the photoelectric sensing device
  • a cache module configured to cache the data of the analog-to-digital conversion
  • a storage module configured to store a correspondence between ambient brightness and an exposure compensation value
  • control processing module configured to search for a corresponding exposure compensation value according to the data, and perform exposure compensation by using the corresponding exposure compensation value based on the original exposure parameter
  • An adjustment module configured to adjust the corresponding relationship stored in the storage module
  • the analog-to-digital converter is connected to the control processing module through the cache module, and the control processing module is connected to the storage module and the camera module.
  • the exposure compensation value is +2 EV
  • the exposure compensation value is +1 EV
  • the exposure compensation value is 0 EV
  • the exposure compensation value is -1 EV
  • the exposure compensation value is -2 EV.
  • the processor further includes:
  • the determining module is configured to determine whether the mobile terminal is in a manual exposure compensation mode or an automatic exposure compensation mode when taking a picture.
  • the processor is a baseband chip.
  • the photo sensing device is a photodiode.
  • the photo sensing device is a photoresistor.
  • the photoelectric sensing device is a photosensitive coupling component
  • a mobile terminal having an automatic exposure compensation function comprising: a photoelectric sensing device for acquiring ambient brightness, a processor and a camera module; wherein the photoelectric sensing device and the camera module are respectively connected to the processor;
  • the processor includes:
  • An analog-to-digital converter for performing analog-to-digital conversion on ambient brightness obtained by the photoelectric sensing device
  • a cache module configured to cache the data of the analog-to-digital conversion
  • a storage module configured to store a correspondence between ambient brightness and an exposure compensation value
  • control processing module configured to search for a corresponding exposure compensation value according to the data, and perform exposure compensation by using the corresponding exposure compensation value based on the original exposure parameter
  • the analog-to-digital converter is connected to the control processing module through the cache module, and the control processing module is connected to the storage module and the camera module.
  • the exposure compensation value is +2 EV
  • the exposure compensation value is +1 EV
  • the exposure compensation value is 0 EV
  • the exposure compensation value is -1 EV
  • the exposure compensation value is -2 EV.
  • the processor further includes:
  • the determining module is configured to determine whether the mobile terminal is in a manual exposure compensation mode or an automatic exposure compensation mode when taking a picture.
  • the processor is a baseband chip.
  • the photo sensing device is a photodiode.
  • the photo sensing device is a photoresistor.
  • the photo sensing device is a photosensitive coupling component.
  • the invention also provides an automatic exposure compensation method, which is applied to a mobile terminal, and the method comprises:
  • the exposure compensation value is +2 EV
  • the exposure compensation value is +1 EV
  • the exposure compensation value is 0 EV
  • the exposure compensation value is -1 EV
  • the exposure compensation value is -2 EV.
  • the method further includes:
  • the correspondence between the ambient brightness and the exposure compensation value is stored in advance.
  • the method further includes:
  • the automatic exposure compensation method further includes:
  • the correspondence stored in advance is adjusted.
  • the mobile terminal and the automatic exposure compensation method with the automatic exposure compensation function provide the corresponding exposure compensation according to the ambient brightness when photographing, by pre-storing the correspondence between the ambient brightness and the exposure compensation value. The value is superimposed on the original exposure value for automatic exposure.
  • This method of exposure compensation has a small adjustment range and a simple implementation process.
  • the invention improves the photographing effect of the mobile terminal without increasing the hardware cost of the mobile terminal, and improves the competitiveness of the mobile terminal in the market.
  • 1 is a schematic diagram of an interface of a prior art manual exposure compensation value adjustment
  • FIG. 2 is a structural block diagram of a preferred embodiment of a mobile terminal having an automatic exposure compensation function according to the present invention
  • 3 is a flow chart of the automatic exposure compensation method of the present invention.
  • the invention provides a mobile terminal with automatic exposure compensation function and an automatic exposure compensation method.
  • 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. 2 is a structural block diagram of a mobile terminal with an automatic exposure compensation function according to the present invention.
  • the mobile terminal with automatic exposure compensation function provided by the present invention includes a photoelectric sensing device 10 for acquiring ambient brightness, a processor 20 and a camera module 30; the photoelectric sensing device 10 and the camera module 30 are respectively connected.
  • the processor 20 includes a photoelectric sensing device 10 for acquiring ambient brightness, a processor 20 and a camera module 30; the photoelectric sensing device 10 and the camera module 30 are respectively connected.
  • the processor 20 is a structural block diagram of a mobile terminal with an automatic exposure compensation function according to the present invention.
  • the mobile terminal with automatic exposure compensation function provided by the present invention includes a photoelectric sensing device 10 for acquiring ambient brightness, a processor 20 and a camera module 30; the photoelectric sensing device 10 and the camera module 30 are respectively connected.
  • the processor 20 includes a processor 20 and a camera module 30; the photoelectric sensing device 10 and the camera module 30 are respectively connected.
  • the processor 20 includes an analog-to-digital converter 201, a cache module 202, a storage module 203, and a control processing module 204.
  • the analog-to-digital converter 201 is connected to the control processing module 204 through a cache module 202, and the control processing module 204 is connected to the storage module 203 and the camera module 30.
  • the analog-to-digital converter 201 is configured to convert an analog signal of ambient brightness acquired by the photoelectric sensing device 10 into a digital signal, so that the control processing module 204 can identify and process the buffer module 202 for buffering the processing of the analog-to-digital converter 201. Data, a sufficient data processing time is reserved for the control processing module 204, the storage module 203 is configured to store a correspondence between the ambient brightness and the exposure compensation value, and the control processing module 204 is configured to search the ambient brightness and the exposure compensation value according to the ambient brightness. Correspondence, output the corresponding exposure compensation value, and automatically expose according to the original exposure parameters.
  • the processor in the embodiment of the present invention may further include an adjustment module (not shown) for adjusting the correspondence stored in the storage module, so that the user may adjust according to a special situation or a preference. Adjust the rules for exposure compensation as you wish.
  • the processor 20 can be a baseband chip of the mobile phone.
  • the photoelectric sensing device 10 can use a photodiode, a photoresistor, a photosensitive coupling component, etc.
  • the camera module 30 is a camera.
  • the analog-to-digital converter 201 After the photodiode obtains the ambient brightness data, the analog-to-digital converter 201 performs analog-to-digital conversion, stores it in the cache module, interrupts the baseband chip, and transmits the current data collected by the photodiode to the baseband through an I2C (Inter-Integrated Circuit) interface. chip.
  • I2C Inter-Integrated Circuit
  • the baseband chip searches for a corresponding exposure compensation value according to the current data in a table of the corresponding relationship between the ambient brightness and the exposure compensation value stored therein, automatically compensates the exposure value based on the original exposure parameter, controls the exposure of the camera module 30, and improves the photograph of the mobile phone.
  • the exposure effect is not limited to:
  • the corresponding relationship between the ambient brightness and the exposure compensation value is inevitably caused by the surface material of the mobile terminal and the camera module.
  • the corresponding relationship between the ambient brightness and the exposure compensation value is set as: When the ambient brightness is less than 50 lux (Lux), the exposure compensation value is +2EV (Exposure Value, exposure value); when the ambient brightness is greater than 50 lux less than 100 lux, the exposure compensation value is +1 EV; when the ambient brightness is greater than 100 lux less than 200 lux, the exposure compensation value is 0 EV; when the ambient brightness is greater than 200 lux less than 500 lux When the exposure compensation value is -1EV; when the ambient brightness is greater than 500 lux, the exposure compensation value is -2EV, as shown in the following table, where ALS (Ambient Light Strength, ambient brightness) indicates ambient brightness.
  • ALS Ambient Light Strength, ambient brightness
  • the processor 20 further includes a determining module 205, determining whether the mobile terminal is in a manual exposure compensation mode or an automatic exposure compensation mode when the mobile terminal is photographed, and only needs to press the current when the mobile terminal is set to the manual exposure compensation mode. There are ways to perform manual exposure compensation.
  • the mobile terminal provided by the present invention includes a mobile phone and an MP4 (Moving Picture Experts Group) Audio Layer IV, motion imaging experts compress standard audio layers 4) players, personal digital assistants and tablets.
  • MP4 Motion Picture Experts Group Audio Layer IV
  • motion imaging experts compress standard audio layers 4
  • personal digital assistants personal digital assistants and tablets.
  • the invention accordingly provides an automatic exposure compensation method, please refer to FIG. 3, which includes:
  • S100 Acquire ambient brightness, perform analog-to-digital conversion on the ambient brightness, and cache data.
  • a table for pre-storing the correspondence between the ambient brightness and the exposure compensation value is needed to automatically find the exposure compensation value during subsequent automatic exposure.
  • step S200 is performed.
  • the automatic exposure compensation method provided by the embodiment may further include:
  • the correspondence stored in advance is adjusted so that the user adjusts the rules of exposure compensation (not shown) according to his or her own will according to special circumstances or usage preferences.
  • the corresponding relationship between the ambient brightness and the exposure compensation value is: when the ambient brightness is less than 50 lux, the exposure compensation value is +2 EV; when the ambient brightness is greater than 50 lux less than 100 lux, the exposure compensation value is +1 EV; When the brightness is greater than 100 lux and less than 200 lux, the exposure compensation value is 0 EV; when the ambient brightness is greater than 200 lux less than 500 lux, the exposure compensation value is -1 EV; when the ambient brightness is greater than 500 lux, the exposure compensation value is -2 EV.
  • the invention automatically finds the corresponding exposure compensation value according to the ambient brightness under the premise of the original automatic exposure parameter, and performs automatic exposure compensation to improve the exposure effect when the mobile terminal takes a picture.
  • This method of exposure compensation has a small adjustment range and a simple implementation process.
  • the invention improves the photographing effect of the mobile terminal without increasing the hardware cost of the mobile terminal, and improves the competitiveness of the mobile terminal in the market.

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Abstract

一种具有自动曝光补偿功能的移动终端及自动曝光补偿方法。其中,自动曝光补偿方法包括:获取环境亮度,并将所述环境亮度进行模数转换并缓存数据;以及根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿。在拍照时,根据环境亮度查找对应的曝光补偿值,并叠加在原有曝光值上自动曝光,这种曝光补偿的方式其调节范围小,实现过程简单。在不增加移动终端硬件成本的前提下提高了移动终端的拍照效果,提高了移动终端在市场上的竞争力。

Description

具有自动曝光补偿功能的移动终端及自动曝光补偿方法 技术领域
本发明涉及移动通信领域,特别涉及一种具有自动曝光补偿功能的移动终端及自动曝光补偿方法。
背景技术
随着移动终端的普及,几乎人手一部手机或其它移动终端。然而,人们希望将越来越多的功能集成到一部手机上,以增加手机的实用性和附加值,诸如mp3、拍照、摄像等都成为了手机的常用功能。
目前手机中通常预先设置不同的曝光值,每一曝光值包括亮度增益值和曝光光线值等,现有的自动曝光方法是从所有曝光值中全范围搜索,最终确定出相应的曝光值进行自动曝光。在曝光值不够时还可以通过手动方式调节曝光补偿值,如图1所示。曝光补偿的作用就是在环境光源偏暗时,增加曝光值(如调整+1EV、+2EV),使拍摄照片更为明亮;同理,在环境光源偏亮时,减小曝光值(如调整-1EV、-2EV),使拍摄照片更暗,以增加画面的清晰度。但是现有的曝光补偿值都是通过手动方式调节,无法根据环境亮度来设置,不能拍出最佳曝光效果的照片,而且调节方式不方便。
技术问题
鉴于上述现有技术的不足之处,本发明的目的在于提供一种具有自动曝光补偿功能的移动终端及自动曝光补偿方法,能根据环境亮度自动设置曝光补偿值,提高照片的曝光效果。
技术解决方案
一种具有自动曝光补偿功能的移动终端,其包括:用于获取环境亮度的光电感应装置、处理器和照相模块;所述光电感应装置和所述照相模块分别连接所述处理器;
所述处理器包括:
模数转换器,用于将所述光电感应装置获取的环境亮度进行模数转换;
缓存模块,用于缓存所述模数转换的数据;
存储模块,用于存储环境亮度与曝光补偿值的对应关系;
控制处理模块,用于根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿;以及
调整模块,用于对所述存储模块中存储的所述对应关系进行调整;
其中,所述模数转换器通过所述缓存模块连接所述控制处理模块,所述控制处理模块连接所述存储模块和所述照相模块。
所述环境亮度与所述曝光补偿值的所述对应关系为:
当所述环境亮度小于50勒克斯时,所述曝光补偿值为+2EV;
当所述环境亮度大于50勒克斯小于100勒克斯时,所述曝光补偿值为+1EV;
当所述环境亮度大于100勒克斯小于200勒克斯时,所述曝光补偿值为0EV;
当所述环境亮度大于200勒克斯小于500勒克斯时,所述曝光补偿值为-1EV;
当所述环境亮度大于500勒克斯时,所述曝光补偿值为-2EV。
所述处理器还包括:
判断模块,用于判断所述移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式。
所述处理器为基带芯片。
所述光电感应装置为光电二极管。
所述光电感应装置为光敏电阻。
所述光电感应装置为感光耦合组件
一种具有自动曝光补偿功能的移动终端,其包括:用于获取环境亮度的光电感应装置、处理器和照相模块;所述光电感应装置和所述照相模块分别连接所述处理器;
所述处理器包括:
模数转换器,用于将所述光电感应装置获取的环境亮度进行模数转换;
缓存模块,用于缓存所述模数转换的数据;
存储模块,用于存储环境亮度与曝光补偿值的对应关系;以及
控制处理模块,用于根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿;
其中,所述模数转换器通过所述缓存模块连接所述控制处理模块,所述控制处理模块连接所述存储模块和所述照相模块。
所述环境亮度与所述曝光补偿值的所述对应关系为:
当所述环境亮度小于50勒克斯时,所述曝光补偿值为+2EV;
当所述环境亮度大于50勒克斯小于100勒克斯时,所述曝光补偿值为+1EV;
当所述环境亮度大于100勒克斯小于200勒克斯时,所述曝光补偿值为0EV;
当所述环境亮度大于200勒克斯小于500勒克斯时,所述曝光补偿值为-1EV;
当所述环境亮度大于500勒克斯时,所述曝光补偿值为-2EV。
所述处理器还包括:
判断模块,用于判断所述移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式。
所述处理器为基带芯片。
所述光电感应装置为光电二极管。
所述光电感应装置为光敏电阻。
所述光电感应装置为感光耦合组件。
本发明还提供一种自动曝光补偿方法,应用于移动终端,所述方法包括:
获取环境亮度,并将所述环境亮度进行模数转换并缓存数据;以及
根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿。
所述环境亮度与所述曝光补偿值的所述对应关系为:
当所述环境亮度小于50勒克斯时,所述曝光补偿值为+2EV;
当所述环境亮度大于50勒克斯小于100勒克斯时,所述曝光补偿值为+1EV;
当所述环境亮度大于100勒克斯小于200勒克斯时,所述曝光补偿值为0EV;
当所述环境亮度大于200勒克斯小于500勒克斯时,所述曝光补偿值为-1EV;
当所述环境亮度大于500勒克斯时,所述曝光补偿值为-2EV。
所述的获取环境亮度,并将所述环境亮度进行模数转换并缓存数据的步骤之前,所述的方法还包括:
预先存储环境亮度与曝光补偿值的对应关系。
所述的获取环境亮度,并将所述环境亮度进行模数转换并缓存数据的步骤之后,所述的方法还包括:
判断所述移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式;如果是手动曝光补偿模式,则根据手动设置的补偿值,并根据原曝光参数进行曝光;如果是自动曝光补偿模式,则执行所述的根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿的步骤。
所述的自动曝光补偿方法还包括:
对预先存储的所述对应关系进行调整。
有益效果
相较于现有技术,本发明提供的具有自动曝光补偿功能的移动终端及自动曝光补偿方法,通过预先存储环境亮度与曝光补偿值的对应关系,在拍照时,根据环境亮度查找对应的曝光补偿值,并叠加在原有曝光值上自动曝光,这种曝光补偿的方式其调节范围小,实现过程简单。而且本发明在不增加移动终端硬件成本的前提下提高了移动终端的拍照效果,提高了移动终端在市场上的竞争力。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为现有技术手动曝光补偿值调节的界面示意图;
图2为本发明具有自动曝光补偿功能的移动终端较佳实施例的结构框图;
图3为本发明自动曝光补偿方法的流程图。
本发明的最佳实施方式
本发明提供一种具有自动曝光补偿功能的移动终端及自动曝光补偿方法。为使本发明的目的、技术方案及效果更加清楚、明确,以下参照附图并举实施例对本发明进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本发明,并不用于限定本发明。
请参阅图2,其为本发明具有自动曝光补偿功能的移动终端的结构框图。如图2所示,本发明提供的具有自动曝光补偿功能的移动终端包括用于获取环境亮度的光电感应装置10,处理器20和照相模块30;所述光电感应装置10和照相模块30分别连接所述处理器20。
其中,所述处理器20包括:模数转换器201、缓存模块202、存储模块203和控制处理模块204。所述模数转换器201通过缓存模块202连接控制处理模块204,所述控制处理模块204连接存储模块203和照相模块30。
所述模数转换器201用于将光电感应装置10获取的环境亮度的模拟信号转换成数字信号,以便于控制处理模块204能够识别和处理,缓存模块202用于缓存模数转换器201处理的数据,给控制处理模块204预留充足的数据处理时间,存储模块203用于存储环境亮度与曝光补偿值的对应关系,所述控制处理模块204用于根据环境亮度查找该环境亮度与曝光补偿值的对应关系,输出相应的曝光补偿值,并根据原曝光参数进行自动曝光。
另外,优选地,本发明的实施例中的处理器还可以包括调整模块(未示出),用于对所述存储模块中存储的所述对应关系进行调整,以便用户根据特殊情况或使用偏好按照自己的意愿调整曝光补偿的规则。
以手机为例,所述处理器20可为手机的基带芯片,光电感应装置10可以采用光电二极管、光敏电阻、感光耦合组件等,照相模块30为摄像头。在光电二极管获取环境亮度数据后,通过模数转换器201进行模数转换后存储在缓存模块中,并中断基带芯片,并通过I2C(Inter-IntegratedCircuit)接口将光电二极管采集的电流数据发送给基带芯片。基带芯片根据电流数据,在其内部存储的环境亮度与曝光补偿值的对应关系的表格中查找对应的曝光补偿值,在原曝光参数的基础上自动补偿曝光值,控制照相模块30曝光,提高手机拍照时的曝光效果。
在具体实施时,由于移动终端的表面材质及照相模块的不同,必然导致环境亮度与曝光补偿值的对应关系不同,本发明根据实际情况,将环境亮度与曝光补偿值的对应关系设置为:当环境亮度小于50勒克斯(Lux)时,曝光补偿值为+2EV(Exposure Value,曝光值);当环境亮度大于50勒克斯小于100勒克斯时,曝光补偿值为+1EV;当环境亮度大于100勒克斯小于200勒克斯时,曝光补偿值为0EV;当环境亮度大于200勒克斯小于500勒克斯时,曝光补偿值为-1EV;当环境亮度大于500勒克斯时,曝光补偿值为-2EV,如下表,其中ALS(Ambient Light Strength,环境亮度)表示环境亮度。
环境光亮强度(勒克斯) 曝光补偿参数(EV)
ALS<50 +2
50<ALS<100 +1
100<ALS<200 0
200<ALS<500 -1
ALS>500 -2
在本发明的移动终端中,所述处理器20还包括判断模块205,判断移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式,在移动终端设置为手动曝光补偿模式时,只需按现有方式进行手动曝光补偿即可。
本发明提供的移动终端包括手机、MP4(Moving Picture Experts Group Audio Layer IV,动态影像专家压缩标准音频层面4)播放器、个人数字助理及平板电脑等。
本发明相应提供一种自动曝光补偿方法,请参阅图3,其包括:
S100、获取环境亮度,并将所述环境亮度进行模数转换并缓存数据。
本发明实施例中,在步骤S100之前,还需要预先存储环境亮度与曝光补偿值的对应关系的表格,以便于后续自动曝光时自动查找曝光补偿值。
并且在获取环境亮度之后,还需要判断移动终端是处于手动曝光补偿模式还是自动曝光补偿模式;如果是手动曝光补偿模式,则根据手动设置的补偿值,并根据原曝光参数进行曝光,该曝光方法为现有技术,此处不作详述。如果是自动曝光补偿模式,则执行步骤S200。
S200、根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿。
另外,优选地,本实施例提供的自动曝光补偿方法还可以包括:
对预先存储的所述对应关系进行调整,以便用户根据特殊情况或使用偏好按照自己的意愿调整曝光补偿的规则(未示出)。
其中,所述环境亮度与曝光补偿值的对应关系为:当环境亮度小于50勒克斯时,曝光补偿值为+2EV;当环境亮度大于50勒克斯小于100勒克斯时,曝光补偿值为+1EV;当环境亮度大于100勒克斯小于200勒克斯时,曝光补偿值为0EV;当环境亮度大于200勒克斯小于500勒克斯时,曝光补偿值为-1EV;当环境亮度大于500勒克斯时,曝光补偿值为-2EV。
本发明通过在原自动曝光参数的前提下,再根据环境亮度自动查找相应的曝光补偿值,进行自动曝光补偿,提高移动终端拍照时的曝光效果。这种曝光补偿的方式其调节范围小,实现过程简单。而且本发明在不增加移动终端硬件成本的前提下提高了移动终端的拍照效果,提高了移动终端在市场上的竞争力。
可以理解的是,对本领域普通技术人员来说,可以根据本发明的技术方案及其发明构思加以等同替换或改变,而所有这些改变或替换都应属于本发明所附的权利要求的保护范围。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
本发明的实施方式
工业实用性
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Claims (19)

  1. 一种具有自动曝光补偿功能的移动终端,其包括:用于获取环境亮度的光电感应装置、处理器和照相模块;所述光电感应装置和所述照相模块分别连接所述处理器;
    所述处理器包括:
    模数转换器,用于将所述光电感应装置获取的环境亮度进行模数转换;
    缓存模块,用于缓存所述模数转换的数据;
    存储模块,用于存储环境亮度与曝光补偿值的对应关系;
    控制处理模块,用于根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿;以及
    调整模块,用于对所述存储模块中存储的所述对应关系进行调整;
    其中,所述模数转换器通过所述缓存模块连接所述控制处理模块,所述控制处理模块连接所述存储模块和所述照相模块。
  2. 根据权利要求1所述的具有自动曝光补偿功能的移动终端,其中所述环境亮度与所述曝光补偿值的所述对应关系为:
    当所述环境亮度小于50勒克斯时,所述曝光补偿值为+2EV;
    当所述环境亮度大于50勒克斯小于100勒克斯时,所述曝光补偿值为+1EV;
    当所述环境亮度大于100勒克斯小于200勒克斯时,所述曝光补偿值为0EV;
    当所述环境亮度大于200勒克斯小于500勒克斯时,所述曝光补偿值为-1EV;
    当所述环境亮度大于500勒克斯时,所述曝光补偿值为-2EV。
  3. 根据权利要求1所述的具有自动曝光补偿功能的移动终端,其中所述处理器还包括:
    判断模块,用于判断所述移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式。
  4. 根据权利要求1所述的具有自动曝光补偿功能的移动终端,其中所述处理器为基带芯片。
  5. 根据权利要求1所述的具有自动曝光补偿功能的移动终端,其中所述光电感应装置为光电二极管。
  6. 根据权利要求1所述的具有自动曝光补偿功能的移动终端,其中所述光电感应装置为光敏电阻。
  7. 根据权利要求1所述的具有自动曝光补偿功能的移动终端,其中所述光电感应装置为感光耦合组件。
  8. 一种具有自动曝光补偿功能的移动终端,其包括:用于获取环境亮度的光电感应装置、处理器和照相模块;所述光电感应装置和所述照相模块分别连接所述处理器;
    所述处理器包括:
    模数转换器,用于将所述光电感应装置获取的环境亮度进行模数转换;
    缓存模块,用于缓存所述模数转换的数据;
    存储模块,用于存储环境亮度与曝光补偿值的对应关系;以及
    控制处理模块,用于根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿;
    其中,所述模数转换器通过所述缓存模块连接所述控制处理模块,所述控制处理模块连接所述存储模块和所述照相模块。
  9. 根据权利要求8所述的具有自动曝光补偿功能的移动终端,其中所述环境亮度与所述曝光补偿值的所述对应关系为:
    当所述环境亮度小于50勒克斯时,所述曝光补偿值为+2EV;
    当所述环境亮度大于50勒克斯小于100勒克斯时,所述曝光补偿值为+1EV;
    当所述环境亮度大于100勒克斯小于200勒克斯时,所述曝光补偿值为0EV;
    当所述环境亮度大于200勒克斯小于500勒克斯时,所述曝光补偿值为-1EV;
    当所述环境亮度大于500勒克斯时,所述曝光补偿值为-2EV。
  10. 根据权利要求8所述的具有自动曝光补偿功能的移动终端,其中所述处理器还包括:
    判断模块,用于判断所述移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式。
  11. 根据权利要求8所述的具有自动曝光补偿功能的移动终端,其中所述处理器为基带芯片。
  12. 根据权利要求8所述的具有自动曝光补偿功能的移动终端,其中所述光电感应装置为光电二极管。
  13. 根据权利要求8所述的具有自动曝光补偿功能的移动终端,其中所述光电感应装置为光敏电阻。
  14. 根据权利要求8所述的具有自动曝光补偿功能的移动终端,其中所述光电感应装置为感光耦合组件。
  15. 一种自动曝光补偿方法,应用于移动终端,所述方法包括:
    获取环境亮度,并将所述环境亮度进行模数转换并缓存数据;以及
    根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿。
  16. 根据权利要求15所述的自动曝光补偿方法,其中所述环境亮度与所述曝光补偿值的所述对应关系为:
    当所述环境亮度小于50勒克斯时,所述曝光补偿值为+2EV;
    当所述环境亮度大于50勒克斯小于100勒克斯时,所述曝光补偿值为+1EV;
    当所述环境亮度大于100勒克斯小于200勒克斯时,所述曝光补偿值为0EV;
    当所述环境亮度大于200勒克斯小于500勒克斯时,所述曝光补偿值为-1EV;
    当所述环境亮度大于500勒克斯时,所述曝光补偿值为-2EV。
  17. 根据权利要求15所述的自动曝光补偿方法,其中在所述的获取环境亮度,并将所述环境亮度进行模数转换并缓存数据的步骤之前,所述的方法还包括:
    预先存储环境亮度与曝光补偿值的对应关系。
  18. 根据权利要求15所述的自动曝光补偿方法,其中在所述的获取环境亮度,并将所述环境亮度进行模数转换并缓存数据的步骤之后,所述的方法还包括:
    判断所述移动终端拍照时是手动曝光补偿模式还是自动曝光补偿模式;如果是手动曝光补偿模式,则根据手动设置的补偿值,并根据原曝光参数进行曝光;如果是自动曝光补偿模式,则执行所述的根据所述数据查找对应的曝光补偿值,并基于原曝光参数利用所述对应的曝光补偿值进行曝光补偿的步骤。
  19. 根据权利要求15所述的自动曝光补偿方法,其还包括:
    对预先存储的所述对应关系进行调整。
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105554413A (zh) * 2016-02-15 2016-05-04 广东欧珀移动通信有限公司 一种屏幕补光拍照方法、装置及移动终端
CN106060415A (zh) * 2016-05-25 2016-10-26 努比亚技术有限公司 一种移动终端及其拍照方法
CN111885796A (zh) * 2020-08-21 2020-11-03 博流智能科技(南京)有限公司 光源亮度自适应控制方法及系统
CN115079487A (zh) * 2022-06-15 2022-09-20 深圳中易健康科技有限公司 应用于舌像拍摄的自适应补光装置及方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102883055A (zh) * 2012-09-19 2013-01-16 惠州Tcl移动通信有限公司 具有自动曝光补偿功能的移动终端及自动曝光补偿方法
CN103561210B (zh) * 2013-10-24 2019-06-04 惠州Tcl移动通信有限公司 根据背景光拍照的方法及移动终端
CN103873772B (zh) * 2014-03-03 2016-03-02 努比亚技术有限公司 移动终端及其拍摄方法
CN105306806B (zh) * 2014-12-22 2019-01-29 维沃移动通信有限公司 一种移动终端及其拍照的方法
CN104601901A (zh) * 2015-02-02 2015-05-06 深圳酷派技术有限公司 终端拍照控制方法及终端
CN107454344B (zh) * 2015-06-15 2019-05-24 Oppo广东移动通信有限公司 一种拍摄参数设置方法和用户终端
CN105744178A (zh) * 2016-04-15 2016-07-06 惠州Tcl移动通信有限公司 一种摄像头启动时亮度的控制方法、系统及摄像终端
CN105872400A (zh) * 2016-04-26 2016-08-17 乐视控股(北京)有限公司 优化曝光时间的方法和装置
CN106254791A (zh) * 2016-08-11 2016-12-21 广东欧珀移动通信有限公司 摄像头的启动方法及移动终端
CN106713779A (zh) * 2016-12-30 2017-05-24 深圳天珑无线科技有限公司 拍照控制方法及装置
US11792531B2 (en) 2019-09-27 2023-10-17 Apple Inc. Gaze-based exposure
CN112584127B (zh) * 2019-09-27 2023-10-03 苹果公司 基于注视的曝光

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1829290A (zh) * 2005-03-04 2006-09-06 Lg电子株式会社 补偿照相机自动曝光的移动通信终端及其方法
CN1992819A (zh) * 2005-12-27 2007-07-04 三星Techwin株式会社 拍摄装置和方法
CN101047794A (zh) * 2006-03-30 2007-10-03 佳能株式会社 图像处理设备、图像处理方法和图像捕获设备
CN101247479A (zh) * 2008-03-26 2008-08-20 北京中星微电子有限公司 一种基于图像中目标区域的自动曝光方法
CN101388959A (zh) * 2007-09-12 2009-03-18 佳能株式会社 摄像设备及其控制方法
CN102883055A (zh) * 2012-09-19 2013-01-16 惠州Tcl移动通信有限公司 具有自动曝光补偿功能的移动终端及自动曝光补偿方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811042A (en) * 1988-04-25 1989-03-07 Eastman Kodak Company Method and apparatus for recording and using exposure data in a photographic system
US7725022B2 (en) * 2006-08-22 2010-05-25 Qualcomm Incorporated Dynamic automatic exposure compensation for image capture devices
WO2011157245A2 (zh) * 2011-08-29 2011-12-22 华为终端有限公司 自动曝光方法、装置和成像设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1829290A (zh) * 2005-03-04 2006-09-06 Lg电子株式会社 补偿照相机自动曝光的移动通信终端及其方法
CN1992819A (zh) * 2005-12-27 2007-07-04 三星Techwin株式会社 拍摄装置和方法
CN101047794A (zh) * 2006-03-30 2007-10-03 佳能株式会社 图像处理设备、图像处理方法和图像捕获设备
CN101388959A (zh) * 2007-09-12 2009-03-18 佳能株式会社 摄像设备及其控制方法
CN101247479A (zh) * 2008-03-26 2008-08-20 北京中星微电子有限公司 一种基于图像中目标区域的自动曝光方法
CN102883055A (zh) * 2012-09-19 2013-01-16 惠州Tcl移动通信有限公司 具有自动曝光补偿功能的移动终端及自动曝光补偿方法

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CN105554413B (zh) * 2016-02-15 2018-11-20 广东欧珀移动通信有限公司 一种屏幕补光拍照方法、装置及移动终端
CN106060415A (zh) * 2016-05-25 2016-10-26 努比亚技术有限公司 一种移动终端及其拍照方法
CN106060415B (zh) * 2016-05-25 2019-06-21 努比亚技术有限公司 一种移动终端及其拍照方法
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