WO2015184810A1 - Method and device for adjusting screen display - Google Patents

Method and device for adjusting screen display Download PDF

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Publication number
WO2015184810A1
WO2015184810A1 PCT/CN2015/070876 CN2015070876W WO2015184810A1 WO 2015184810 A1 WO2015184810 A1 WO 2015184810A1 CN 2015070876 W CN2015070876 W CN 2015070876W WO 2015184810 A1 WO2015184810 A1 WO 2015184810A1
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screen
facial feature
distance value
feature distance
adjusting
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PCT/CN2015/070876
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French (fr)
Chinese (zh)
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陈铭
郭热思
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中兴通讯股份有限公司
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Publication of WO2015184810A1 publication Critical patent/WO2015184810A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer

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  • the related methods generally include:
  • the front camera and the distance sensor are arranged on the front panel of the electronic device to detect the working state of the display screen.
  • the front camera is activated in the background to capture the face image; the face recognition technology is used to recognize the face image and capture the front face. Human face; when the system judges that there is a positive face in the captured image, the distance sensor is turned on in the background to measure the distance between the user's face and the display screen; the measured distance and the preset reference distance are compared, and according to whether the user is prompted to adjust the eye and display The distance between the screens.
  • the brightness of the screen is adjusted to an initial brightness, the transparency of the screen is adjusted to a maximum transparency, and the execution continues after a preset time.
  • the brightness and/or transparency of the screen is raised when it is determined that the current facial feature distance value is less than the last saved facial feature distance value.
  • the adjusting module is configured to: when the determining module determines that the facial feature distance value is greater than or equal to a highest threshold, lowering brightness and/or transparency of the screen.
  • the technical solution of the present invention includes: determining whether the screen is in a working state, and if so, starting the front camera to capture an image; and when determining that there is a human face in the captured image, acquiring a facial feature distance value in the image
  • the facial feature distance value is judged to be greater than or equal to a preset maximum threshold
  • the brightness and/or transparency of the screen is lowered.
  • the brightness and/or transparency of the screen is adjusted according to the facial feature distance value, and the screen display is automatically and timely adjusted. Since the facial feature distance value indirectly reflects the distance between the face and the screen, Therefore, the solution of the present invention affects the user's habits subtly and protects the user's vision.
  • FIG. 3 is a schematic structural diagram of an apparatus for adjusting a screen display according to an embodiment of the present invention.
  • the facial feature distance value is the distance between the facial features in the image. This value is not the distance of the face from the screen, but has a corresponding relationship with the distance of the face from the screen. The farther the face is from the screen, the image is viewed. The smaller the facial features are, the smaller the facial feature distance is, the closer the face is to the screen, the larger the facial features seen on the image, and the greater the facial feature distance.
  • the method for obtaining the facial feature distance value in the image may include, for example, capturing a facial image, and then using a face recognition technique to acquire attributes such as the size, position, and distance of the facial features such as the iris, the nose, and the corner of the mouth.
  • the trapezoidal analysis is performed by using two eyes + a nose or two corners of the two corners. If the face is biased, the length of the four sides of the trapezoid and the size of the four corners can be obtained according to the size.
  • the characteristics of the isosceles trapezoid and the projection are compensated for the value of the facial feature distance that the camera can see when the face is at a certain point from the screen.
  • the step of determining whether the screen is in the working state is continued after the preset time.
  • the facial feature distance value may be a two-eye distance value.
  • Step 102 When it is determined that the facial feature distance value is greater than or equal to a preset highest threshold, the brightness and/or transparency of the screen is lowered.
  • the brightness of the screen is adjusted to the initial brightness, the transparency of the screen is adjusted to the maximum transparency, and the determination screen is continued after the preset time.
  • the brightness and/or transparency of the screen is raised.
  • the brightness of the up or down screen may be the first preset ratio of the maximum brightness of the screen (eg, 10%), and the amplitude of the transparency of the up or down screen may be the second preset of the maximum brightness of the screen. Proportion (such as 10%).
  • the lowest threshold or the highest threshold can be obtained by learning the user, that is, obtaining the facial feature distance value of the user multiple times in a period of time, thereby obtaining a distribution map of the facial feature distance values, and obtaining the numerical distribution comparison in the distribution map.
  • the minimum threshold may be greater than the minimum value of the interval in which the numerical distribution is concentrated, and the highest threshold is greater than the maximum value of the interval in which the numerical distribution is concentrated. This process can be performed each time the screen transitions from a non-working state to a working state.
  • the previous time of the face is the duration of the person watching the screen.
  • the facial feature distance value (such as the distance between two eyes) is constant with respect to each person, and does not exceed a certain normal range for each person, and the closer the object is to the lens, the object photographed in the photo becomes more and more Large
  • the size of the object in the photo can indirectly reflect the distance between the object and the lens (for the problem that the captured face may be biased due to the bias, in the embodiment of the present invention, two eyes + three points of the lips are taken Forming a triangle for analysis, if the face is biased, we can obtain the length of the three sides of the triangle and the size of the three angles according to the characteristics of the isosceles triangle and the projection to compensate), according to which the facial feature distance can be preset A critical region between the lowest threshold value and the highest threshold, which is the region in which the user effectively browses the contents of the screen.
  • a numerical distribution map is obtained, and a range in which the numerical values are distributed is obtained, and the interval is slightly adjusted downward, and in the latter time, The user remains in this interval and below, otherwise the adjustment screen continuously reduces the display brightness and blur, driving the user to subconsciously move the head away from the screen, so that the latest value is retrieved back to this interval.
  • This is also consistent with the user's usage habits. The user is not close to the screen at the beginning, but is getting closer and closer to the screen during use. The user's habits are also a gradual process of formation. Simply and ruthlessly making a distance in one step will only make the user very uncomfortable.
  • the method includes:
  • Step 201 Start the front camera in the background to capture an image.
  • Step 202 analyzing the captured image, and using the face recognition technology to perform the face image It is recognized that when there is a face in the captured image, the two-eye distance value (or other facial feature distance value) in the current image is saved to the historical value list; when there is no face in the captured image, the flow is ended.
  • Step 203 Establish a numerical distribution map of historical values obtained by polling for a period of time.
  • Step 206 Determine whether the screen is in an active state. If yes, execute step 207. If not, execute step 206 after the preset time.
  • step 210 the current data is compared with the lower limit of the interval. If the current data is smaller than the lower limit of the interval, step 211 is performed. If the current data is larger than the lower limit of the interval, step 212 is performed.
  • Step 213 the user is getting closer and closer to the screen than the healthy distance, so the setting screen brightness is darkened, and if the blur layer window is not created to cover the top of the Z-order, the blur layer is created.
  • the window is overlaid on the top of the Z-order, and the transparency of the window is reduced.
  • an embodiment of the present invention further provides an apparatus for adjusting a screen display, including at least:
  • the judging module 301 is further configured to:
  • the step of judging whether the screen is in the working state is continued after the preset time.
  • the adjustment module 304 is further configured to:
  • the adjustment module 304 is further configured to:
  • the judging module 301 judges that the current facial feature distance value is smaller than the last saved facial feature distance value, the brightness and/or transparency of the screen is raised.
  • the adjustment module 304 is also configured to:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controls And Circuits For Display Device (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

A method and device for adjusting screen display. The method comprises that: determining whether the screen is in a work state, and if yes, starting a front-facing camera to capture an image; when determining that a human face exists in the captured image, obtaining a face feature distance value in the image; and when determining that the face feature distance value is greater than or equal to a preset maximum threshold, reducing luminance and/or transparency of the screen. By the solution of the present invention, the luminance and/or transparency of the screen are adjusted according to the face feature distance value, therefore automatic and in-time adjustment on the screen display is implemented. Because the face feature distance value indirectly reflects the distance between the human face and the screen, the solution of the present invention exerts a subtle influence on customs of the user and protects eyesight of the user.

Description

一种调整屏幕显示的方法和装置Method and device for adjusting screen display 技术领域Technical field
本发明涉及调整屏幕显示的技术领域，尤指一种调整屏幕显示的方法和装置。The present invention relates to the technical field of adjusting screen display, and more particularly to a method and apparatus for adjusting screen display.
背景技术Background technique
移动终端(如智能手机)在我们的生活中越来越风靡，由于其丰富的娱乐功能以及简易的使用方式更是受到诸多青少年的喜爱。然而，即使是成年人，在长时间的不正确方式连续使用之后，视力也有所下降。而青少年的视力处于未成型时期，在长时间的不正确方式连续使用之后，视力下降或成为假性近视已成为越来越大的隐忧。而青少年自制能力低，如不能加以引导，长时间的不正确使用方式就会形成习惯。Mobile terminals (such as smart phones) are becoming more and more popular in our lives. Due to their rich entertainment features and easy to use, they are more popular among teenagers. However, even in adults, vision is reduced after a long period of inaccurate use. The visual acuity of adolescents is in an unformed period. After a long period of inaccurate use, the loss of vision or becoming a false myopia has become a growing concern. The young people's self-control ability is low. If they can't be guided, the long-term improper use will form a habit.
为了防止用户长时间使用移动终端而造成的视力下降，相关的方法大致包括：In order to prevent the visual loss caused by the user using the mobile terminal for a long time, the related methods generally include:
在电子设备的前面板设前置摄像头与距离传感器，检测显示屏幕工作状态，当显示屏幕激活，后台启动前置摄像头，捕获人脸图像；利用人脸识别技术对人脸图像进行识别，捕捉正面人脸；当***判断捕获图像中存在正面人脸，后台打开距离传感器，测量用户脸部与显示屏幕的距离；比较测量距离与预设的参考距离，并据此判断是否提示用户调整眼睛与显示屏幕之间的距离。The front camera and the distance sensor are arranged on the front panel of the electronic device to detect the working state of the display screen. When the display screen is activated, the front camera is activated in the background to capture the face image; the face recognition technology is used to recognize the face image and capture the front face. Human face; when the system judges that there is a positive face in the captured image, the distance sensor is turned on in the background to measure the distance between the user's face and the display screen; the measured distance and the preset reference distance are compared, and according to whether the user is prompted to adjust the eye and display The distance between the screens.
相关的方法中，虽然给予用户一定的提示，而由于用户未必会按照提示信息区调整眼睛与显示屏幕之间的距离，从而无法有效实现对用户视力的保护，并且该方法需要距离传感器的配合，对于没有设置距离传感器的电子设备则无法使用，使得该方法的使用受到限制。In the related method, although the user is given a certain prompt, since the user does not necessarily adjust the distance between the eye and the display screen according to the prompt information area, the protection of the user's vision cannot be effectively realized, and the method requires the cooperation of the distance sensor. For electronic devices that do not have a distance sensor, they cannot be used, making the use of this method limited.
发明内容Summary of the invention
为了解决上述问题，本发明提出了一种调整屏幕显示的方法和装置，能 够自动地、及时地对屏幕的显示方式进行调整。In order to solve the above problems, the present invention provides a method and apparatus for adjusting a screen display, which can It is enough to adjust the display mode of the screen automatically and in a timely manner.
为了达到上述目的，采用如下技术方案：In order to achieve the above objectives, the following technical solutions are adopted:
一种调整屏幕显示的方法，包括：A method of adjusting the screen display, including:
判断屏幕是否处于工作状态，如果是，则启动前置摄像头捕获图像；Determine whether the screen is in working state, and if so, activate the front camera to capture an image;
当判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值；Obtaining a facial feature distance value in the image when it is determined that there is a human face in the captured image;
当判断出面部特征距离数值大于或等于预先设置的最高阈值时，下调屏幕的亮度和/或透明度。When it is determined that the facial feature distance value is greater than or equal to the preset highest threshold, the brightness and/or transparency of the screen is lowered.
可选地，该方法还包括：Optionally, the method further includes:
当判断出所述屏幕处于非工作状态，或判断出所述捕获的图像中不存在人脸时，在预设时间后继续执行所述判断屏幕是否处于工作状态的步骤。When it is determined that the screen is in a non-working state, or it is determined that there is no human face in the captured image, the step of determining whether the screen is in an active state is continued after a preset time.
可选地，该方法还包括：Optionally, the method further includes:
当判断出所述面部特征距离数值小于或等于预先设置的最低阈值时，将所述屏幕的亮度调整为初始亮度，将所述屏幕的透明度调整为最大透明度，并在预设时间后继续执行所述判断屏幕是否处于工作状态的步骤。When it is determined that the facial feature distance value is less than or equal to a preset minimum threshold, the brightness of the screen is adjusted to an initial brightness, the transparency of the screen is adjusted to a maximum transparency, and the execution continues after a preset time. The step of judging whether the screen is in a working state.
可选地，该方法还包括：Optionally, the method further includes:
当判断出所述面部特征距离数值大于所述最低阈值且小于所述最高阈值时，保存当前的面部特征距离数值，判断出所述当前的面部特征距离数值大于或等于上一次保存的面部特征距离数值，下调所述屏幕的亮度和/或透明度。When it is determined that the facial feature distance value is greater than the lowest threshold and less than the highest threshold, the current facial feature distance value is saved, and the current facial feature distance value is determined to be greater than or equal to the last saved facial feature distance. A value that reduces the brightness and/or transparency of the screen.
可选地，该方法还包括：Optionally, the method further includes:
当判断出所述当前的面部特征距离数值小于所述上一次保存的面部特征距离数值时，上调所述屏幕的亮度和/或透明度。The brightness and/or transparency of the screen is raised when it is determined that the current facial feature distance value is less than the last saved facial feature distance value.
可选地，该方法还包括：Optionally, the method further includes:
统计人脸的在线时间，当判断出所述人脸的在线时间大于或等于预设阈值时，下调所述屏幕的亮度和/或透明度。The online time of the face is counted, and when it is determined that the online time of the face is greater than or equal to a preset threshold, the brightness and/or transparency of the screen is lowered.
一种调整屏幕显示的装置，至少包括判断模块、捕获模块、获取模块和 调整模块，其中：A device for adjusting a screen display, comprising at least a judgment module, a capture module, an acquisition module, and Adjustment module, where:
所述判断模块设置成：判断屏幕是否处于工作状态；判断捕获的图像中是否存在人脸；判断面部特征距离数值是否大于预先设置的最高阈值；The determining module is configured to: determine whether the screen is in a working state; determine whether a face exists in the captured image; and determine whether the facial feature distance value is greater than a preset maximum threshold;
所述捕获模块设置成：当所述判断模块判断出屏幕处于工作状态时，启动前置摄像头捕获图像；The capturing module is configured to: when the determining module determines that the screen is in a working state, start the front camera to capture an image;
所述获取模块设置成：当所述判断模块判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值；The acquiring module is configured to: when the determining module determines that a face exists in the captured image, acquire a facial feature distance value in the image;
所述调整模块，用于当所述判断模块判断出面部特征距离数值大于或等于最高阈值时，下调屏幕的亮度和/或透明度。The adjusting module is configured to: when the determining module determines that the facial feature distance value is greater than or equal to a highest threshold, lowering brightness and/or transparency of the screen.
可选地，所述判断模块还设置成：判断出所述屏幕处于非工作状态，或判断出所述捕获的图像中不存在人脸，在预设时间后继续执行所述判断屏幕是否处于工作状态的步骤。Optionally, the determining module is further configured to: determine that the screen is in a non-working state, or determine that there is no human face in the captured image, and continue to perform whether the determining screen is working after a preset time The steps of the state.
可选地，所述调整模块还设置成：在所述判断模块判断出所述面部特征距离数值小于或等于预先设置的最低阈值时，将所述屏幕的亮度调整为初始亮度，将所述屏幕的透明度调整为最大透明度；Optionally, the adjusting module is further configured to: when the determining module determines that the facial feature distance value is less than or equal to a preset minimum threshold, adjust the brightness of the screen to an initial brightness, and the screen is Transparency is adjusted to maximum transparency;
所述判断模块还设置成：在预设时间后继续判断屏幕是否处于工作状态。The determining module is further configured to: continue to determine whether the screen is in a working state after a preset time.
可选地，所述调整模块还设置成：在所述判断模块判断出所述面部特征距离数值大于所述最低阈值且小于所述最高阈值时，保存当前的面部特征距离数值，在所述判断模块判断出所述当前的面部特征距离数值大于或等于上一次保存的面部特征距离数值时，下调所述屏幕的亮度和/或透明度；Optionally, the adjusting module is further configured to: when the determining module determines that the facial feature distance value is greater than the lowest threshold and less than the highest threshold, save the current facial feature distance value, where the determining The module determines that the brightness and/or transparency of the screen is lowered when the current facial feature distance value is greater than or equal to the last saved facial feature distance value;
所述判断模块还设置成：判断所述当前的面部特征距离数值是否大于上一次保存的面部特征距离数值。The determining module is further configured to: determine whether the current facial feature distance value is greater than a last saved facial feature distance value.
可选地，所述调整模块还设置成：在所述判断模块判断出所述当前的面部特征距离数值小于所述上一次保存的面部特征距离数值时，上调所述屏幕的亮度和/或透明度。Optionally, the adjusting module is further configured to: when the determining module determines that the current facial feature distance value is less than the last saved facial feature distance value, increase the brightness and/or transparency of the screen. .
可选地，所述判断模块还设置成：统计人脸的在线时间，判断所述人脸的在线时间是否大于预设阈值；Optionally, the determining module is further configured to: calculate an online time of the face, and determine whether the online time of the face is greater than a preset threshold;
所述调整模块还设置成：在所述判断模块判断出所述人脸的在线时间大 于或等于预设阈值时，下调所述屏幕的亮度和/或透明度。The adjustment module is further configured to: determine, during the determining module, that the online time of the face is large At or equal to a preset threshold, the brightness and/or transparency of the screen is lowered.
一种计算机程序，包括程序指令，当该程序指令被计算机执行时，使得该计算机可执行上述任意的调整屏幕显示的方法。A computer program comprising program instructions that, when executed by a computer, cause the computer to perform any of the methods described above for adjusting screen display.
一种载有所述计算机程序的载体。A carrier carrying the computer program.
与相关技术相比，本发明技术方案包括：判断屏幕是否处于工作状态，如果是，则启动前置摄像头捕获图像；当判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值；当判断出面部特征距离数值大于或等于预先设置的最高阈值时，下调屏幕的亮度和/或透明度。通过本发明的方案，根据面部特征距离数值来调整屏幕的亮度和/或透明度，实现了自动、及时地对屏幕显示进行调整，由于面部特征距离数值间接反映了人脸和屏幕之间的距离，因此本发明的方案潜移默化地影响了用户的习惯，保护了用户的视力。Compared with the related art, the technical solution of the present invention includes: determining whether the screen is in a working state, and if so, starting the front camera to capture an image; and when determining that there is a human face in the captured image, acquiring a facial feature distance value in the image When the facial feature distance value is judged to be greater than or equal to a preset maximum threshold, the brightness and/or transparency of the screen is lowered. Through the solution of the invention, the brightness and/or transparency of the screen is adjusted according to the facial feature distance value, and the screen display is automatically and timely adjusted. Since the facial feature distance value indirectly reflects the distance between the face and the screen, Therefore, the solution of the present invention affects the user's habits subtly and protects the user's vision.
附图概述BRIEF abstract
下面对本发明实施例中的附图进行说明，实施例中的附图是用于对本发明的进一步理解，与说明书一起用于解释本发明，并不构成对本发明保护范围的限制。The drawings in the following description of the embodiments of the present invention are intended to illustrate the invention, and are not intended to limit the scope of the invention.
图1为本发明实施例的调整屏幕显示的方法的流程图；1 is a flowchart of a method for adjusting a screen display according to an embodiment of the present invention;
图2为本发明实施例的调整屏幕显示的方法的具体实施例的流程图；2 is a flowchart of a specific embodiment of a method for adjusting a screen display according to an embodiment of the present invention;
图3为本发明实施例的调整屏幕显示的装置的结构组成示意图。FIG. 3 is a schematic structural diagram of an apparatus for adjusting a screen display according to an embodiment of the present invention.
本发明的较佳实施方式Preferred embodiment of the invention
为了便于本领域技术人员的理解，下面结合附图对本发明作进一步的描述，并不能用来限制本发明的保护范围。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的各种方式可以相互组合。 In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings, and is not intended to limit the scope of the present invention. It should be noted that the embodiments in the present application and the various manners in the embodiments may be combined with each other without conflict.
参见图1，本发明实施例提出了一种调整屏幕显示的方法，包括：Referring to FIG. 1, an embodiment of the present invention provides a method for adjusting a screen display, including:
步骤100、判断屏幕是否处于工作状态，如果是，则启动前置摄像头捕获图像。Step 100: Determine whether the screen is in a working state, and if so, activate the front camera to capture an image.
本步骤中，当判断出屏幕处于非工作状态(如休眠状态，或锁屏状态等)时，在预设时间后继续执行判断屏幕是否处于工作状态的步骤。In this step, when it is determined that the screen is in a non-working state (such as a sleep state, or a lock screen state, etc.), the step of determining whether the screen is in the working state is continued after the preset time.
本步骤中，判断屏幕是否处于工作状态属于本领域技术人员的公知常识，并不用于限定本发明的保护范围，这里不再赘述。In this step, it is a common knowledge of those skilled in the art to determine whether the screen is in the working state, and is not intended to limit the scope of protection of the present invention, and details are not described herein again.
步骤101、当判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值。Step 101: When it is determined that there is a human face in the captured image, the facial feature distance value in the image is acquired.
其中，面部特征距离数值即图像中五官之间的距离数值，此数值不是人脸离屏幕的距离，但与人脸离屏幕的距离有对应关系，人脸离屏幕的距离越远，图像上看到的五官越小，采得的面部特征距离数值越小，人脸离屏幕的距离越近，图像上看到的五官越大，采得的面部特征距离数值越大。The facial feature distance value is the distance between the facial features in the image. This value is not the distance of the face from the screen, but has a corresponding relationship with the distance of the face from the screen. The farther the face is from the screen, the image is viewed. The smaller the facial features are, the smaller the facial feature distance is, the closer the face is to the screen, the larger the facial features seen on the image, and the greater the facial feature distance.
获取图像中的面部特征距离数值的方法可以包括，例如，拍摄取得面部图像，再利用人脸识别技术采得比如眼虹膜、鼻翼、嘴角等面像五官轮廓的大小、位置、距离等属性。针对拍摄到的面部可能由于偏向而产生误差的问题，采取两眼+鼻翼或两嘴角四点构成梯形进行分析，如果面部有偏向，则可以取得梯形的四条边的长度与四个角的大小根据等腰梯形的特性以及投影进行补偿计算，得到在面部在距离屏幕某个点时摄像头可以看到的面部特征距离数值。The method for obtaining the facial feature distance value in the image may include, for example, capturing a facial image, and then using a face recognition technique to acquire attributes such as the size, position, and distance of the facial features such as the iris, the nose, and the corner of the mouth. For the problem that the photographed face may be inaccurate due to the bias, the trapezoidal analysis is performed by using two eyes + a nose or two corners of the two corners. If the face is biased, the length of the four sides of the trapezoid and the size of the four corners can be obtained according to the size. The characteristics of the isosceles trapezoid and the projection are compensated for the value of the facial feature distance that the camera can see when the face is at a certain point from the screen.
本步骤中，可以采用人脸识别技术对捕获的图像进行识别，具体可以采用相关的各种人脸识别方法来实现，并不用于限定本发明的保护范围，这里不再赘述。In this step, the captured image may be identified by using a face recognition technology, and may be implemented by using various related face recognition methods, and is not intended to limit the scope of the present invention, and details are not described herein again.
本步骤中，当判断出捕获的图像中不存在人脸时，在预设时间后继续执行判断屏幕是否处于工作状态的步骤。In this step, when it is determined that there is no face in the captured image, the step of determining whether the screen is in the working state is continued after the preset time.
本步骤中，面部特征距离数值可以是两眼距离数值。In this step, the facial feature distance value may be a two-eye distance value.
步骤102、当判断出面部特征距离数值大于或等于预先设置的最高阈值时，下调屏幕的亮度和/或透明度。 Step 102: When it is determined that the facial feature distance value is greater than or equal to a preset highest threshold, the brightness and/or transparency of the screen is lowered.
本步骤中，当判断出面部特征距离数值小于或等于预先设置的最低阈值时，将屏幕的亮度调整为初始亮度，将屏幕的透明度调整为最大透明度，并在预设时间后继续执行判断屏幕是否处于工作状态的步骤。In this step, when it is determined that the facial feature distance value is less than or equal to the preset minimum threshold, the brightness of the screen is adjusted to the initial brightness, the transparency of the screen is adjusted to the maximum transparency, and the determination screen is continued after the preset time. The step of working.
其中，初始亮度可以是在采用该方法对屏幕的亮度进行调整之前的亮度。The initial brightness may be the brightness before the brightness of the screen is adjusted by the method.
本步骤中，当判断出面部特征距离数值大于最低阈值且小于最高阈值时，保存当前的面部特征距离数值，判断出当前的面部特征距离数值大于或等于上一次保存的面部特征距离数值，下调屏幕的亮度和/或透明度。In this step, when it is determined that the facial feature distance value is greater than the lowest threshold and less than the highest threshold, the current facial feature distance value is saved, and the current facial feature distance value is determined to be greater than or equal to the last saved facial feature distance value, and the screen is lowered. Brightness and / or transparency.
其中，当判断出当前的面部特征距离数值小于上一次保存的面部特征距离数值时，上调屏幕的亮度和/或透明度。Wherein, when it is determined that the current facial feature distance value is smaller than the last saved facial feature distance value, the brightness and/or transparency of the screen is raised.
本步骤中，上调或下调屏幕的亮度的幅度可以是屏幕的最大亮度的第一预设比例(如10％)，上调或下调屏幕的透明度的幅度可以是屏幕的最大亮度的的第二预设比例(如10％)。In this step, the brightness of the up or down screen may be the first preset ratio of the maximum brightness of the screen (eg, 10%), and the amplitude of the transparency of the up or down screen may be the second preset of the maximum brightness of the screen. Proportion (such as 10%).
其中，可以通过在Z-order顶层上创建模糊层window的方法来上调或下调屏幕的透明度。在第一次判读出需要调整屏幕的透明度时，在Z-order顶层创建模糊层window，通过改变模糊层window的透明度就能够调整屏幕的透明度。在将屏幕的透明度调整为最大透明度时，可以移除模糊层window。Among them, you can increase or decrease the transparency of the screen by creating a blur layer window on the top of Z-order. When the first readout needs to adjust the transparency of the screen, a blur layer window is created on the top of the Z-order, and the transparency of the screen can be adjusted by changing the transparency of the blur layer window. When you adjust the transparency of the screen to the maximum transparency, you can remove the blur layer window.
本步骤中，最低阈值或最高阈值可以通过对用户进行学习获得，即在一段时间内多次获取用户的面部特征距离数值，从而得到面部特征距离数值的分布图，可以获取分布图中数值分布比较集中的区间，那么可以取最低阈值大于数值分布比较集中的区间的最小值，最高阈值大于数值分布比较集中的的区间的最大值。该过程可以在每次屏幕从非工作状态转换为工作状态时进行。In this step, the lowest threshold or the highest threshold can be obtained by learning the user, that is, obtaining the facial feature distance value of the user multiple times in a period of time, thereby obtaining a distribution map of the facial feature distance values, and obtaining the numerical distribution comparison in the distribution map. For the concentrated interval, the minimum threshold may be greater than the minimum value of the interval in which the numerical distribution is concentrated, and the highest threshold is greater than the maximum value of the interval in which the numerical distribution is concentrated. This process can be performed each time the screen transitions from a non-working state to a working state.
本发明实施例的方法还可以包括：The method of the embodiment of the present invention may further include:
统计人脸的在线时间，当判断出人脸的在线时间大于或等于预设阈值时，下调屏幕的亮度和/或透明度。The online time of the face is counted, and when it is determined that the online time of the face is greater than or equal to the preset threshold, the brightness and/or transparency of the screen is lowered.
其中，人脸的在先时间即为人看屏幕的持续时间。Among them, the previous time of the face is the duration of the person watching the screen.
通过本发明的方案，由于移动终端通常都配置有前置摄像头，而用户使用移动终端时必然面对移动终端的屏幕，可以被前置摄像头捕捉到面部头像， 通过人脸识别得到的用户面部图像信息调整屏幕显示亮度与透明度。判断用户面部与屏幕之间的距离越来越近时以及用户面部面对屏幕一段时间后，即调整屏幕不断降低显示亮度与透明度，驱使用户下意识移动头部远离屏幕，以保持在视觉最清晰的位置(与远视眼效果近似)。With the solution of the present invention, since the mobile terminal is usually configured with a front camera, and the user necessarily faces the screen of the mobile terminal when using the mobile terminal, the front camera can capture the facial avatar. The user's face image information obtained by face recognition adjusts the screen display brightness and transparency. When the distance between the user's face and the screen is determined to be getting closer and closer and the user's face is facing the screen for a period of time, the adjustment screen continuously reduces the brightness and transparency of the display, driving the user to subconsciously move the head away from the screen to keep the vision clearest. Position (approximate to the effect of hyperopia).
因为面部特征距离数值(如两眼距离数值)相对于每个人是恒定的，而且对每个人来说不会超出一定的正常范围，而当物体距离镜头愈近时，照片中拍摄的物体显得愈大，当一个物体大小恒定的，照片中物体的大小能够间接反映出物体与镜头的距离(针对拍摄到的面部可能由于偏向而产生误差的问题，本发明实施例中采取两眼+嘴唇三点构成三角形进行分析，如果面部有偏向，则我们可以取得三角形的三个边的长度与三个角的大小根据等腰三角形的特性以及投影进行补偿计算)，据此，可以预先设定面部特征距离数值最低阈值与最高阈值之间的临界区域，该临界区域为用户有效浏览屏幕内容的区域。通过屏幕开始激活后一段时间内对用户面部特征距离数据的收集和学习，得到数值分布图，并从中得到数值集中分布的区间，对此区间进行轻微向下调整，在后面的时间里，即限定用户保持在此区间及以下，否则调整屏幕不断降低显示亮度与模糊度，驱使用户下意识移动头部远离屏幕，从而使获取最新数值回到此区间。这与用户使用习惯也是吻合的，用户在初始时候并不是离屏幕很近，而是在使用过程中越来越接近屏幕。而用户的使用习惯也是一个渐进的形成过程，简单粗暴地一步到位强行制定一个距离只会让用户很不适应，潜移默化让用户慢慢与屏幕拉开相当一段距离才是最佳选择。另外，用户面部面对屏幕一段时间后驱使用户下意识移动头部远离屏幕也有利于强化这一习惯，并有利于缓解眼部疲劳，实现对眼睛的保护。Because the facial feature distance value (such as the distance between two eyes) is constant with respect to each person, and does not exceed a certain normal range for each person, and the closer the object is to the lens, the object photographed in the photo becomes more and more Large, when the size of an object is constant, the size of the object in the photo can indirectly reflect the distance between the object and the lens (for the problem that the captured face may be biased due to the bias, in the embodiment of the present invention, two eyes + three points of the lips are taken Forming a triangle for analysis, if the face is biased, we can obtain the length of the three sides of the triangle and the size of the three angles according to the characteristics of the isosceles triangle and the projection to compensate), according to which the facial feature distance can be preset A critical region between the lowest threshold value and the highest threshold, which is the region in which the user effectively browses the contents of the screen. After collecting and learning the facial feature distance data of the user for a period of time after the screen starts to be activated, a numerical distribution map is obtained, and a range in which the numerical values are distributed is obtained, and the interval is slightly adjusted downward, and in the latter time, The user remains in this interval and below, otherwise the adjustment screen continuously reduces the display brightness and blur, driving the user to subconsciously move the head away from the screen, so that the latest value is retrieved back to this interval. This is also consistent with the user's usage habits. The user is not close to the screen at the beginning, but is getting closer and closer to the screen during use. The user's habits are also a gradual process of formation. Simply and ruthlessly making a distance in one step will only make the user very uncomfortable. Subtly letting the user slowly pull the screen away from the screen is the best choice. In addition, the user's face facing the screen for a period of time to drive the user to move the head away from the screen is also beneficial to strengthen this habit, and help to relieve eye fatigue and achieve eye protection.
下面通过具体实施例详细说明本发明实施例的方法。参见图2，该方法包括：The method of the embodiment of the present invention will be described in detail below through specific embodiments. Referring to Figure 2, the method includes:
步骤200、每隔一段时间判断屏幕是否处于工作状态，当屏幕由非工作状态转换为工作状态时，进入“数据的采集与学习阶段”，执行步骤201，如果屏幕不是由非工作状态转换为工作状态，则结束本流程。Step 200: Determine whether the screen is in a working state at intervals. When the screen transitions from the non-working state to the working state, enter the “data collection and learning phase”, and perform step 201 if the screen is not converted from the non-working state to the working state. The status ends the process.
步骤201、后台启动前置摄像头，捕获图像。Step 201: Start the front camera in the background to capture an image.
步骤202、对捕获的图像进行分析，利用人脸识别技术对人脸图像进行 识别，当捕获图像中存在人脸时，测得当前图像中两眼距离数值(或其他面部特征距离数值)保存到历史数值列表；当捕获图像中不存在人脸时，结束本流程。Step 202: analyzing the captured image, and using the face recognition technology to perform the face image It is recognized that when there is a face in the captured image, the two-eye distance value (or other facial feature distance value) in the current image is saved to the historical value list; when there is no face in the captured image, the flow is ended.
步骤203、将一段时间轮询得到的历史数值建立数值分布图。Step 203: Establish a numerical distribution map of historical values obtained by polling for a period of time.
步骤204、“数据的采集与学习阶段”完成时，得到数值集中分布的区间，对此区间进行轻微向下调整。In step 204, when the “data acquisition and learning phase” is completed, an interval in which the values are concentrated is obtained, and the interval is slightly adjusted downward.
步骤205、“数据的采集与学习阶段”完成后，正式进入视力保护工作状态。In step 205, after the “data acquisition and learning phase” is completed, the visual protection work state is officially entered.
步骤206、判断屏幕是否处于工作状态，如果是，则执行步骤207，如果不是，则在预设时间后执行步骤206。Step 206: Determine whether the screen is in an active state. If yes, execute step 207. If not, execute step 206 after the preset time.
步骤207、后台启动前置摄像头捕获图像，判断捕获的图像中是否存在人脸，如果存在，则执行步骤208，如果不存在，则在预设时间后执行步骤206。Step 207: The front camera is started to capture an image in the background, and it is determined whether there is a human face in the captured image. If yes, step 208 is performed. If not, step 206 is performed after the preset time.
步骤208、将捕获的图像作为当前数据，将当前数据与区间上限进行比较，如果当前数据比区间上限大，则执行步骤209，如果当前数据比区间上限小，则执行步骤210。Step 208: The captured image is used as current data, and the current data is compared with the upper limit of the interval. If the current data is larger than the upper limit of the interval, step 209 is performed. If the current data is smaller than the upper limit of the interval, step 210 is performed.
步骤209、用户距离屏幕超出健康距离，所以设置屏幕亮度变暗，并且如果未创建模糊层window覆盖到Z-order顶层，则创建模糊层window覆盖到Z-order顶层，设置模糊层window透明度减小。 Step 209, the user distance from the screen exceeds the healthy distance, so the setting screen brightness is darkened, and if the blur layer window is not covered to the top of the Z-order, the blur layer window is overlaid to the top of the Z-order, and the blur layer window transparency is reduced. .
步骤210、将当前数据与区间下限进行比较，如果当前数据比区间下限小，则执行步骤211，如果当前数据比区间下限大，则执行步骤212。In step 210, the current data is compared with the lower limit of the interval. If the current data is smaller than the lower limit of the interval, step 211 is performed. If the current data is larger than the lower limit of the interval, step 212 is performed.
步骤211、将屏幕的亮度调整为初始亮度，将屏幕的透明度调整为最大透明度。Step 211: Adjust the brightness of the screen to the initial brightness, and adjust the transparency of the screen to the maximum transparency.
步骤212、将当前数据与上一个历史数值比较，如果当前数据比上一个历史数值大，则执行步骤213，如果当前数据比上一个历史数值小，则执行步骤214。In step 212, the current data is compared with the previous historical value. If the current data is larger than the previous historical value, step 213 is performed. If the current data is smaller than the previous historical value, step 214 is performed.
步骤213、用户距离屏幕越来越近且超出健康距离，所以设置屏幕亮度变暗，并且如果未创建模糊层window覆盖到Z-order顶层，则创建模糊层 window覆盖到Z-order顶层，设置模糊层window透明度减小。 Step 213, the user is getting closer and closer to the screen than the healthy distance, so the setting screen brightness is darkened, and if the blur layer window is not created to cover the top of the Z-order, the blur layer is created. The window is overlaid on the top of the Z-order, and the transparency of the window is reduced.
步骤214、用户正趋向远离屏幕，需要进行正向激励，所以设置屏幕亮度变亮，设置模糊层window透明度增加直至当前数据比区间下限都要小的时候，这时用户正在健康距离内浏览屏幕，不需要进行惩罚，即还原屏幕亮度，移除模糊层window。Step 214: The user is moving away from the screen, and needs to perform positive excitation. Therefore, the brightness of the setting screen is brightened, and the transparency of the window is increased until the current data is smaller than the lower limit of the interval. At this time, the user is browsing the screen within a healthy distance. No penalty is required, ie the screen brightness is restored and the blur layer window is removed.
参见图3，本发明实施例还提出了一种调整屏幕显示的装置，至少包括：Referring to FIG. 3, an embodiment of the present invention further provides an apparatus for adjusting a screen display, including at least:
判断模块301，设置成：判断屏幕是否处于工作状态；判断捕获的图像中是否存在人脸；判断面部特征距离数值是否大于预先设置的最高阈值；The determining module 301 is configured to: determine whether the screen is in a working state; determine whether a face exists in the captured image; and determine whether the facial feature distance value is greater than a preset highest threshold;
捕获模块302，设置成：当判断模块301判断出屏幕处于工作状态时，启动前置摄像头捕获图像；The capturing module 302 is configured to: when the determining module 301 determines that the screen is in a working state, start the front camera to capture an image;
获取模块303，设置成：当判断模块301判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值；The obtaining module 303 is configured to: when the determining module 301 determines that a human face exists in the captured image, acquire a facial feature distance value in the image;
调整模块304，设置成：当判断模块301判断出面部特征距离数值大于或等于最高阈值时，下调屏幕的亮度和/或透明度。The adjusting module 304 is configured to: when the determining module 301 determines that the facial feature distance value is greater than or equal to the highest threshold, lowering the brightness and/or transparency of the screen.
本发明实施例的装置中，判断模块301还设置成：In the apparatus of the embodiment of the present invention, the determining module 301 is further configured to:
判断出屏幕处于非工作状态，或判断出捕获的图像中不存在人脸，在预设时间后继续执行判断屏幕是否处于工作状态的步骤。It is judged that the screen is in a non-working state, or it is judged that there is no face in the captured image, and the step of judging whether the screen is in the working state is continued after the preset time.
本发明实施例的装置中，调整模块304还设置成：In the apparatus of the embodiment of the present invention, the adjustment module 304 is further configured to:
在判断模块判断出面部特征距离数值小于或等于预先设置的最低阈值时，将屏幕的亮度调整为初始亮度，将屏幕的透明度调整为最大透明度；When the determining module determines that the facial feature distance value is less than or equal to the preset minimum threshold, adjusting the brightness of the screen to the initial brightness, and adjusting the transparency of the screen to the maximum transparency;
判断模块301还设置成：The judging module 301 is further configured to:
在预设时间后继续执行判断屏幕是否处于工作状态的步骤。The step of judging whether the screen is in the working state is continued after the preset time.
本发明实施例的装置中，调整模块304还设置成：In the apparatus of the embodiment of the present invention, the adjustment module 304 is further configured to:
在判断模块301判断出面部特征距离数值大于最低阈值且小于最高阈值时，保存当前的面部特征距离数值，在判断模块301判断出当前的面部特征距离数值大于或等于上一次保存的面部特征距离数值时，下调屏幕的亮度和/或透明度； When the determining module 301 determines that the facial feature distance value is greater than the lowest threshold and is less than the highest threshold, the current facial feature distance value is saved, and the determining module 301 determines that the current facial feature distance value is greater than or equal to the last saved facial feature distance value. Decrease the brightness and/or transparency of the screen;
判断模块301还设置成：The judging module 301 is further configured to:
判断当前的面部特征距离数值是否大于上一次保存的面部特征距离数值。It is determined whether the current facial feature distance value is greater than the last saved facial feature distance value.
本发明实施例的装置中，调整模块304还设置成：In the apparatus of the embodiment of the present invention, the adjustment module 304 is further configured to:
在判断模块301判断出当前的面部特征距离数值小于上一次保存的面部特征距离数值时，上调屏幕的亮度和/或透明度。When the judging module 301 judges that the current facial feature distance value is smaller than the last saved facial feature distance value, the brightness and/or transparency of the screen is raised.
本发明实施例的装置中，判断模块301还设置成：In the apparatus of the embodiment of the present invention, the determining module 301 is further configured to:
统计人脸的在线时间，判断人脸的在线时间是否大于预设阈值；Counting the online time of the face and determining whether the online time of the face is greater than a preset threshold;
调整模块304还设置成：The adjustment module 304 is also configured to:
在判断模块301判断出人脸的在线时间大于或等于预设阈值时，下调屏幕的亮度和/或透明度。When the determining module 301 determines that the online time of the face is greater than or equal to the preset threshold, the brightness and/or transparency of the screen is lowered.
需要说明的是，以上所述的实施例仅是为了便于本领域的技术人员理解而已，并不用于限制本发明的保护范围，在不脱离本发明的发明构思的前提下，本领域技术人员对本发明所做出的任何显而易见的替换和改进等均在本发明的保护范围之内。It should be noted that the above-mentioned embodiments are only for the purpose of facilitating the understanding of those skilled in the art, and are not intended to limit the scope of the present invention, and those skilled in the art will Any obvious substitutions and improvements made by the invention are within the scope of the invention.
工业实用性Industrial applicability
通过本发明的方案，根据面部特征距离数值来调整屏幕的亮度和/或透明度，实现了自动、及时地对屏幕显示进行调整，由于面部特征距离数值间接反映了人脸和屏幕之间的距离，因此本发明的方案潜移默化地影响了用户的习惯，保护了用户的视力。因此本发明具有很强的工业实用性。 Through the solution of the invention, the brightness and/or transparency of the screen is adjusted according to the facial feature distance value, and the screen display is automatically and timely adjusted. Since the facial feature distance value indirectly reflects the distance between the face and the screen, Therefore, the solution of the present invention affects the user's habits subtly and protects the user's vision. Therefore, the present invention has strong industrial applicability.

Claims (14)

  1. 一种调整屏幕显示的方法，包括：A method of adjusting the screen display, including:
    判断屏幕是否处于工作状态，如果是，则启动前置摄像头捕获图像；Determine whether the screen is in working state, and if so, activate the front camera to capture an image;
    当判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值；Obtaining a facial feature distance value in the image when it is determined that there is a human face in the captured image;
    当判断出面部特征距离数值大于或等于预先设置的最高阈值时，下调屏幕的亮度和/或透明度。When it is determined that the facial feature distance value is greater than or equal to the preset highest threshold, the brightness and/or transparency of the screen is lowered.
  2. 根据权利要求1所述的调整屏幕显示的方法，该方法还包括：The method of adjusting a screen display according to claim 1, further comprising:
    当判断出所述屏幕处于非工作状态，或判断出所述捕获的图像中不存在人脸时，在预设时间后继续执行所述判断屏幕是否处于工作状态的步骤。When it is determined that the screen is in a non-working state, or it is determined that there is no human face in the captured image, the step of determining whether the screen is in an active state is continued after a preset time.
  3. 根据权利要求1所述的调整屏幕显示的方法，该方法还包括：The method of adjusting a screen display according to claim 1, further comprising:
    当判断出所述面部特征距离数值小于或等于预先设置的最低阈值时，将所述屏幕的亮度调整为初始亮度，将所述屏幕的透明度调整为最大透明度，并在预设时间后继续执行所述判断屏幕是否处于工作状态的步骤。When it is determined that the facial feature distance value is less than or equal to a preset minimum threshold, the brightness of the screen is adjusted to an initial brightness, the transparency of the screen is adjusted to a maximum transparency, and the execution continues after a preset time. The step of judging whether the screen is in a working state.
  4. 根据权利要求3所述的调整屏幕显示的方法，该方法还包括：The method of adjusting a screen display according to claim 3, the method further comprising:
    当判断出所述面部特征距离数值大于所述最低阈值且小于所述最高阈值时，保存当前的面部特征距离数值，判断出所述当前的面部特征距离数值大于或等于上一次保存的面部特征距离数值，下调所述屏幕的亮度和/或透明度。When it is determined that the facial feature distance value is greater than the lowest threshold and less than the highest threshold, the current facial feature distance value is saved, and the current facial feature distance value is determined to be greater than or equal to the last saved facial feature distance. A value that reduces the brightness and/or transparency of the screen.
  5. 根据权利要求4所述的调整屏幕显示的方法，该方法还包括：The method of adjusting a screen display according to claim 4, the method further comprising:
    当判断出所述当前的面部特征距离数值小于所述上一次保存的面部特征距离数值时，上调所述屏幕的亮度和/或透明度。The brightness and/or transparency of the screen is raised when it is determined that the current facial feature distance value is less than the last saved facial feature distance value.
  6. 根据权利要求1～5中任意一项所述的调整屏幕显示的方法，该方法还包括：The method of adjusting a screen display according to any one of claims 1 to 5, further comprising:
    统计人脸的在线时间，当判断出所述人脸的在线时间大于或等于预设阈值时，下调所述屏幕的亮度和/或透明度。The online time of the face is counted, and when it is determined that the online time of the face is greater than or equal to a preset threshold, the brightness and/or transparency of the screen is lowered.
  7. 一种调整屏幕显示的装置，至少包括判断模块、捕获模块、获取模块 和调整模块，其中：A device for adjusting a screen display, comprising at least a judgment module, a capture module, and an acquisition module And adjustment modules, where:
    所述判断模块设置成：判断屏幕是否处于工作状态；判断捕获的图像中是否存在人脸；判断面部特征距离数值是否大于预先设置的最高阈值；The determining module is configured to: determine whether the screen is in a working state; determine whether a face exists in the captured image; and determine whether the facial feature distance value is greater than a preset maximum threshold;
    所述捕获模块设置成：当所述判断模块判断出屏幕处于工作状态时，启动前置摄像头捕获图像；The capturing module is configured to: when the determining module determines that the screen is in a working state, start the front camera to capture an image;
    所述获取模块设置成：当所述判断模块判断出捕获的图像中存在人脸时，获取图像中的面部特征距离数值；The acquiring module is configured to: when the determining module determines that a face exists in the captured image, acquire a facial feature distance value in the image;
    所述调整模块，用于当所述判断模块判断出面部特征距离数值大于或等于最高阈值时，下调屏幕的亮度和/或透明度。The adjusting module is configured to: when the determining module determines that the facial feature distance value is greater than or equal to a highest threshold, lowering brightness and/or transparency of the screen.
  8. 根据权利要求7所述的调整屏幕显示的装置，其中，The apparatus for adjusting a screen display according to claim 7, wherein
    所述判断模块还设置成：判断出所述屏幕处于非工作状态，或判断出所述捕获的图像中不存在人脸，在预设时间后继续执行所述判断屏幕是否处于工作状态的步骤。The determining module is further configured to: determine that the screen is in a non-working state, or determine that there is no human face in the captured image, and continue to perform the step of determining whether the screen is in a working state after a preset time.
  9. 根据权利要求7所述的调整屏幕显示的装置，其中，The apparatus for adjusting a screen display according to claim 7, wherein
    所述调整模块还设置成：在所述判断模块判断出所述面部特征距离数值小于或等于预先设置的最低阈值时，将所述屏幕的亮度调整为初始亮度，将所述屏幕的透明度调整为最大透明度；The adjusting module is further configured to: when the determining module determines that the facial feature distance value is less than or equal to a preset minimum threshold, adjust the brightness of the screen to an initial brightness, and adjust the transparency of the screen to Maximum transparency;
    所述判断模块还设置成：在预设时间后继续判断屏幕是否处于工作状态。The determining module is further configured to: continue to determine whether the screen is in a working state after a preset time.
  10. 根据权利要求9所述的调整屏幕显示的装置，其中，The apparatus for adjusting a screen display according to claim 9, wherein
    所述调整模块还设置成：在所述判断模块判断出所述面部特征距离数值大于所述最低阈值且小于所述最高阈值时，保存当前的面部特征距离数值，在所述判断模块判断出所述当前的面部特征距离数值大于或等于上一次保存的面部特征距离数值时，下调所述屏幕的亮度和/或透明度；The adjusting module is further configured to: when the determining module determines that the facial feature distance value is greater than the lowest threshold and less than the highest threshold, save a current facial feature distance value, and determine, at the determining module Decreasing the brightness and/or transparency of the screen when the current facial feature distance value is greater than or equal to the last saved facial feature distance value;
    所述判断模块还设置成：判断所述当前的面部特征距离数值是否大于上一次保存的面部特征距离数值。The determining module is further configured to: determine whether the current facial feature distance value is greater than a last saved facial feature distance value.
  11. 根据权利要求10所述的调整屏幕显示的装置，其中，The apparatus for adjusting a screen display according to claim 10, wherein
    所述调整模块还设置成：在所述判断模块判断出所述当前的面部特征距 离数值小于所述上一次保存的面部特征距离数值时，上调所述屏幕的亮度和/或透明度。The adjusting module is further configured to: determine, at the determining module, the current facial feature distance The brightness and/or transparency of the screen is raised when the deviation value is less than the last saved facial feature distance value.
  12. 根据权利要求7～11任意一项所述的调整屏幕显示的装置，其中，The apparatus for adjusting a screen display according to any one of claims 7 to 11, wherein
    所述判断模块还设置成：统计人脸的在线时间，判断所述人脸的在线时间是否大于预设阈值；The determining module is further configured to: calculate an online time of the face, and determine whether the online time of the face is greater than a preset threshold;
    所述调整模块还设置成：在所述判断模块判断出所述人脸的在线时间大于或等于预设阈值时，下调所述屏幕的亮度和/或透明度。The adjusting module is further configured to: when the determining module determines that the online time of the face is greater than or equal to a preset threshold, lowering brightness and/or transparency of the screen.
  13. 一种计算机程序，包括程序指令，当该程序指令被计算机执行时，使得该计算机可执行权利要求1-6中任一项所述的调整屏幕显示的方法。A computer program comprising program instructions which, when executed by a computer, cause the computer to perform the method of adjusting a screen display as set forth in any one of claims 1-6.
  14. 一种载有权利要求13所述计算机程序的载体。 A carrier carrying the computer program of claim 13.
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