WO2016033877A1 - Method for dynamically adjusting screen character display of terminal, and terminal - Google Patents
Method for dynamically adjusting screen character display of terminal, and terminal Download PDFInfo
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- WO2016033877A1 WO2016033877A1 PCT/CN2014/092173 CN2014092173W WO2016033877A1 WO 2016033877 A1 WO2016033877 A1 WO 2016033877A1 CN 2014092173 W CN2014092173 W CN 2014092173W WO 2016033877 A1 WO2016033877 A1 WO 2016033877A1
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- 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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
Abstract
Disclosed is a method for dynamically adjusting screen character display of a terminal. The method comprises: when a terminal receives a screen character display adjustment instruction, collecting a first frame of facial image and a second frame of facial image of a current user by means of a camera of the terminal; detecting a first facial area in the first frame of facial image and a second facial area in the second frame of facial image; and adjusting screen character display of the terminal according to the resolution of the first facial area, the resolution of the second facial area and the resolution of the screen of the terminal. Also disclosed is a terminal.
Description
本发明涉及终端屏幕管理技术，尤其涉及一种动态调整终端屏幕文字显示的方法及终端。The present invention relates to a terminal screen management technology, and in particular, to a method and a terminal for dynamically adjusting a screen display of a terminal screen.
移动终端是指可以在移动中使用的计算机设备，广义的讲包括手机、笔记本、平板电脑、可穿戴智能终端、车载电脑等。但是，通常情况下是指手机或者具有多种应用功能的智能手机、平板电脑及可穿戴智能终端。随着集成电路技术的飞速发展，移动终端的功能越来越丰富和强大，在工作、生活中的使用也越来越广泛。A mobile terminal refers to a computer device that can be used in mobile, and broadly includes a mobile phone, a notebook, a tablet, a wearable smart terminal, a vehicle-mounted computer, and the like. However, it usually refers to a mobile phone or a smart phone, a tablet computer, and a wearable smart terminal having multiple application functions. With the rapid development of integrated circuit technology, the functions of mobile terminals are becoming more and more abundant and powerful, and their use in work and life is becoming more and more extensive.
目前，用户可以在运动过程中使用智能手机、平板电脑、可穿戴智能终端等移动终端，但在运动过程中，用户与移动终端通常会发生不同程度的晃动，这会导致移动终端的屏幕文字跟人眼视线产生相对位移，虽然用户通常情况下可以及时修正自身或移动终端的位置以看清终端屏幕文字，但不可避免的会造成用户的不适，尤其是当晃动频率较高时，用户的不适反应更为明显，使得用户不得不停止使用移动终端。At present, users can use mobile terminals such as smart phones, tablet computers, and wearable smart terminals during the exercise, but during the exercise, the user and the mobile terminal usually have different degrees of shaking, which causes the screen text of the mobile terminal to follow. The human eye's line of sight produces a relative displacement. Although the user can usually correct the position of the mobile terminal or the mobile terminal in time to see the terminal screen text, it will inevitably cause the user's discomfort, especially when the shaking frequency is high, the user's discomfort. The response is more pronounced, causing the user to stop using the mobile terminal.
为了提高用户的体验，现有终端屏幕文字显示调整方案一，是基于用户始终保持不动、仅移动终端在运动的假设，根据移动终端自身的传感器进行终端屏幕文字显示调整，在上述假设的前提下，现有方案一拥有较为理想的效果。In order to improve the user experience, the existing terminal screen text display adjustment scheme 1 is based on the assumption that the user remains motionless and only the mobile terminal is in motion, and the terminal screen text display adjustment is performed according to the mobile terminal's own sensor, on the premise of the above assumptions. Next, the existing program one has a more desirable effect.
现有终端屏幕字体调整方案二，是结合外部测量设备与移动终端自身的传感器进行屏幕文字显示调整，在用户身体上安装测量设备测量人体运动情况，并与移动终端自身测量的人体运动情况相结合，从而在多种情况
下均可正确调整终端屏幕文字显示。The second terminal screen font adjustment scheme 2 is to combine the external measuring device and the mobile terminal's own sensor to perform screen text display adjustment, and install a measuring device on the user's body to measure the human body motion, and combine with the human body motion measured by the mobile terminal itself. And thus in a variety of situations
The terminal screen text display can be adjusted correctly.
然而，现有调整终端屏幕文字显示的方案至少存在以下缺陷：However, the existing scheme for adjusting the screen display of the terminal screen has at least the following defects:
方案一、当用户在运动或者与移动终端共同运动时，方案一会出现较大的误差，即：在用户需要对屏幕文字显示进行调整时，出现了没有及时反应的现象，而在用户不需要对屏幕文字显示进行调整时，出现了错误反应。Solution 1: When the user is exercising or moving together with the mobile terminal, the program will have a large error, that is, when the user needs to adjust the screen text display, there is a phenomenon that there is no timely response, but the user does not need An error occurred when adjusting the screen text display.
方案二、该方案比单纯依赖移动终端自身传感器的方案效果更好，但需要额外增设测量设备，因此，会增加额外的成本；并且，增设测量设备会造成用户佩戴不便、易丢失、续航难以保证等问题。Solution 2: This solution is better than the solution that relies solely on the mobile terminal's own sensor, but additional measurement equipment is needed, so additional cost will be added; and the addition of measurement equipment will cause inconvenience to the user, easy to lose, and endurance is difficult to guarantee. And other issues.
由此可见，目前亟需一种实时且动态地调整终端屏幕文字显示的方案。It can be seen that there is a need for a solution for real-time and dynamic adjustment of the screen display of the terminal screen.
发明内容Summary of the invention
为解决现有存在的技术问题，本发明实施例期望提供一种动态调整终端屏幕文字显示的方法及终端。In order to solve the existing technical problems, embodiments of the present invention are expected to provide a method and a terminal for dynamically adjusting a screen display of a terminal screen.
本发明实施例的技术方案是这样实现的：The technical solution of the embodiment of the present invention is implemented as follows:
本发明实施例提供了一种动态调整终端屏幕文字显示的方法，该方法包括：The embodiment of the invention provides a method for dynamically adjusting the screen display of a terminal screen, the method comprising:
终端接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；When receiving the screen text display adjustment instruction, the terminal collects the first frame face image and the second frame face image of the current user through the camera of the terminal;
检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；Detecting a first face region in the first frame face image and a second face region in the second frame face image;
根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。Adjusting a screen text display of the terminal according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal.
基于上述方法，本发明实施例提供了一种终端，该终端包括：图像采集单元、区域检测单元、显示调整单元；其中，Based on the foregoing method, an embodiment of the present invention provides a terminal, where the terminal includes: an image collection unit, an area detection unit, and a display adjustment unit;
所述图像采集单元，配置为接收到屏幕字体调整指令时，通过所述终
端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；The image acquisition unit is configured to receive the screen font adjustment instruction
The camera of the end captures the first frame face image and the second frame face image of the current user;
所述区域检测单元，配置为检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；The area detecting unit is configured to detect a first face area in the first frame face image and a second face area in the second frame face image;
所述显示调整单元，配置为向所述图像采集单元发送屏幕字体调整指令；并根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。The display adjustment unit is configured to send a screen font adjustment instruction to the image collection unit; and according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal Rate, adjust the screen text display of the terminal.
本发明实施例所提供的动态调整终端屏幕文字显示的方法及终端，终端接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。如此，本发明实施例能根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，在不增加成本和携带复杂度的同时，实时且动态地调整所述终端的屏幕文字显示，从而增强用户体验。The method and terminal for dynamically adjusting the screen text display of the terminal provided by the embodiment of the present invention, when receiving the screen text display adjustment instruction, the terminal collects the first frame face image and the second frame face of the current user through the camera of the terminal An image; detecting a first face region in the first frame face image and a second face region in the second frame face image; according to a resolution of the first face region, the second person The resolution of the face area and the screen resolution of the terminal adjust the screen text display of the terminal. As such, the embodiment of the present invention can perform real-time without increasing cost and carrying complexity according to the resolution of the first face region, the resolution of the second face region, and the screen resolution of the terminal. And dynamically adjusting the screen text display of the terminal to enhance the user experience.
图1为本发明实施例动态调整终端屏幕文字显示的方法实现流程示意图；1 is a schematic flowchart of a method for dynamically adjusting a screen display of a terminal screen according to an embodiment of the present invention;
图2为本发明实施例终端组成结构示意图。FIG. 2 is a schematic structural diagram of a terminal structure according to an embodiment of the present invention.
本发明实施例中，终端接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终
端的屏幕分辨率，调整所述终端的屏幕文字显示。In the embodiment of the present invention, when receiving the screen text display adjustment instruction, the terminal collects the first frame face image and the second frame face image of the current user through the camera of the terminal; and detects the first frame face image. a first face region and a second face region in the second frame face image; a resolution according to the first face region, a resolution of the second face region, and the end
The screen resolution of the terminal adjusts the screen text display of the terminal.
本发明实施例中，所述终端可以是具备智能化显示功能的设备，例如可以为：智能手机、平板电脑ipad、电脑等设备。In the embodiment of the present invention, the terminal may be a device with an intelligent display function, and may be, for example, a smart phone, a tablet ipad, a computer, or the like.
下面结合附图和具体实施方式对本发明所述方法和装置作进一步说明。The method and apparatus of the present invention are further described below in conjunction with the drawings and specific embodiments.
本发明实施例提出了一种动态调整终端屏幕文字显示的方法，如图1所示，该方法包括：The embodiment of the invention provides a method for dynamically adjusting the screen display of the terminal screen. As shown in FIG. 1 , the method includes:
步骤S100：终端接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像。Step S100: When the terminal receives the screen text display adjustment instruction, the terminal captures the first frame face image and the second frame face image of the current user through the camera of the terminal.
这里，所述第一帧人脸图像表示当前帧人脸图像，所述第二帧人脸图像表示当前帧人脸图像的下一帧人脸图像。Here, the first frame face image represents a current frame face image, and the second frame face image represents a next frame face image of a current frame face image.
这里，用户开启终端的屏幕文字显示调整功能时，终端的处理器等控制器件能够识别出用户的开启屏幕文字显示调整功能操作，处理器等控制器件会发送屏幕文字显示调整指令。Here, when the user turns on the screen text display adjustment function of the terminal, the control device of the terminal and the like can recognize the operation function of the user's on-screen text display adjustment function, and the control device such as the processor sends the screen text display adjustment instruction.
这里，终端接收到屏幕文字显示调整指令时，首先初始化所述终端的前置摄像头并将所述前置摄像头运行在后台，然后按照设定时间间隔方式，每隔设定时间间隔，通过所述终端的前置摄像头采集当前用户的一帧人脸图像，具体实现方式如下：Here, when receiving the screen text display adjustment instruction, the terminal first initializes the front camera of the terminal and runs the front camera in the background, and then passes the said time interval according to the set time interval manner. The front camera of the terminal collects a frame of the face image of the current user, and the specific implementation manner is as follows:
终端接收到屏幕字体调整指令时，通过所述终端的前置摄像头采集当前用户的当前帧人脸图像；在设定时间间隔之后，开始采集当前帧人脸图像的下一帧人脸图像；将下一帧人脸图像作为当前帧人脸图像，在下一设定时间间隔之后，继续采集当前用户的下下一帧人脸图像。When receiving the screen font adjustment instruction, the terminal collects the current frame face image of the current user through the front camera of the terminal; after the set time interval, starts collecting the next frame face image of the current frame face image; The next frame face image is used as the current frame face image, and after the next set time interval, the next user frame image of the current user is continuously collected.
这里，根据实际需求设定时间间隔，例如，设定时间间隔为0.5S，每隔0.5S通过所述终端的前置摄像头采集当前用户的一帧人脸图像，这样能够降低单位时间内屏幕文字显示的调整次数，从而降低所述终端的资源消
耗。Here, the time interval is set according to actual needs. For example, the set time interval is 0.5S, and a frame image of the current user is collected by the front camera of the terminal every 0.5S, thereby reducing the screen text per unit time. The number of adjustments displayed, thereby reducing the resource consumption of the terminal
Consumption.
步骤S101：检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域。Step S101: Detect a first face area in the first frame face image and a second face area in the second frame face image.
这里，仅包括人脸面部图像的矩形区域称为人脸区域，首先需要可检测的最小人脸区域，如果最小人脸区域过小，会出现人脸区域误检测现象，如果最小人脸区域过大，会导致无法检测出人脸区域，通常，可以将最小人脸区域的分辨率设置为终端屏幕分辨率的20％，以确保能够正确检测到人脸区域。Here, a rectangular area including only a face image is called a face area. First, a minimum detectable face area is required. If the minimum face area is too small, a face area false detection phenomenon may occur if the minimum face area is too large. , the face area cannot be detected. Generally, the resolution of the minimum face area can be set to 20% of the terminal screen resolution to ensure that the face area can be detected correctly.
下面对如何检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域，进行具体说明：The following describes how to detect the first face area in the first frame face image and the second face area in the second frame face image:
步骤一：对所述第一帧人脸图像及所述第二帧人脸图像分别进行预处理；其中，所述预处理包括图像去噪、图像亮度及对比度增强等操作；Step 1: pre-processing the first frame face image and the second frame face image respectively; wherein the pre-processing includes image denoising, image brightness and contrast enhancement;
这里，对预处理算法不作具体限定，可以根据实际情况选择预处理算法对人脸图像进行预处理操作；具体如何根据预处理算法，对所述第一帧人脸图像及所述第二帧人脸图像分别进行预处理属于现有技术，这里不再赘述；Here, the pre-processing algorithm is not specifically limited, and the pre-processing algorithm may be selected to perform pre-processing on the face image according to actual conditions; specifically, according to the pre-processing algorithm, the first frame face image and the second frame person are The preprocessing of the face images separately belongs to the prior art, and is not described here;
步骤二：根据人脸检测算法以及人脸追踪算法，检测预处理后的第一帧人脸图像中的第一人脸区域及预处理后的第二帧人脸图像中的第二人脸区域，实现方式如下：Step 2: detecting a first face region in the pre-processed first frame face image and a second face region in the preprocessed second frame face image according to the face detection algorithm and the face tracking algorithm , the implementation is as follows:
采集的当前用户的第一帧人脸图像为初始帧人脸图像时，对所述第一帧人脸图像进行预处理，然后采用基于机器学习的人脸检测算法检测预处理后的第一帧人脸图像中的第一人脸区域，由于人脸检测算法消耗系统资源较多，因此，后续就不需要持续采用人脸检测算法检测后续采集的人脸图像中的人脸区域，而可以采用消耗系统资源较少的人脸追踪算法对后续采集的人脸图像中的人脸区域进行追踪，例如，Camshift算法，采用Camshift
算法之前需要对所述第一人脸区域进行预处理，例如，对所述第一人脸区域进行直方图均衡、归一化、二值化、色彩空间转换等处理，其中，对所述第一人脸区域进行直方图均衡、色彩空间转换等处理是为了保证后续的追踪效果；然后采用Camshift算法将处理后的第一人脸区域生成追踪对象，根据所述追踪对象追踪所述第二帧人脸图像中的第二人脸区域。When the first frame of the current user's face image is the initial frame face image, the first frame face image is preprocessed, and then the machine-based face detection algorithm is used to detect the preprocessed first frame. The first face area in the face image, because the face detection algorithm consumes more system resources, therefore, it is not necessary to continuously use the face detection algorithm to detect the face area in the subsequently collected face image, but can adopt A face tracking algorithm that consumes less system resources tracks the face region in the subsequently acquired face image, for example, the Camshift algorithm, using Camshift
Before the algorithm, the first face area needs to be pre-processed, for example, performing histogram equalization, normalization, binarization, color space conversion, and the like on the first face area, where The processing of histogram equalization, color space conversion and the like is performed to ensure the subsequent tracking effect; then the Camplay algorithm is used to generate a tracking object in the processed first face region, and the second frame is tracked according to the tracking object. The second face area in the face image.
这里，对人脸检测算法及人脸追踪算法不作具体限定；具体如何根据人脸检测算法以及人脸追踪算法，检测预处理后的第一帧人脸图像中的第一人脸区域及预处理后的第二帧人脸图像中的第二人脸区域属于现有技术，这里不再赘述。Here, the face detection algorithm and the face tracking algorithm are not specifically limited; how to detect the first face region and the pre-processing in the pre-processed first frame face image according to the face detection algorithm and the face tracking algorithm The second face area in the second frame of the face image belongs to the prior art, and details are not described herein again.
步骤S102：根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。Step S102: Adjust the screen text display of the terminal according to the resolution of the first face region, the resolution of the second face region, and the screen resolution of the terminal.
这里，所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2，也就是说，所述第一人脸区域的纵向分辨率为X1，横向分辨率为Y1；所述第二人脸区域的纵向分辨率为X2，横向分辨率为Y2。Here, the resolution of the first face region is preset to X 1 *Y 1 , and the resolution of the second face region is preset to X 2 *Y 2 , that is, the first face The vertical resolution of the region is X 1 and the lateral resolution is Y 1 ; the vertical resolution of the second human face region is X 2 and the horizontal resolution is Y 2 .
这里，如何根据所述第一人脸区域的分辨率X1*Y1、所述第二人脸区域的分辨率X2*Y2以及所述终端的屏幕分辨率Xc*Yc，调整所述终端的屏幕文字显示，具体可采用如下两种方式：Here, how to adjust according to the resolution X 1 *Y 1 of the first face region, the resolution X 2 *Y 2 of the second face region, and the screen resolution X c *Y c of the terminal The screen text display of the terminal may adopt the following two methods:
方式一、根据所述第一人脸区域的纵向分辨率为X1及所述第二人脸区域的纵向分辨率为X2，调整所述终端的屏幕文字显示：In a first mode, according to the vertical resolution of the first face region being X 1 and the vertical resolution of the second face region being X 2 , the screen text display of the terminal is adjusted:
根据所述第一人脸区域的纵向分辨率X1以及所述终端的屏幕纵向分辨率Xc，确定第一比值
以及根据所述第二人脸区域的纵向分辨率X2以及所述终端的屏幕纵向分辨率Xc，确定第二比值
Determining a first ratio according to a vertical resolution X 1 of the first face region and a screen longitudinal resolution X c of the terminal And determining a second ratio according to a vertical resolution X 2 of the second face region and a screen longitudinal resolution X c of the terminal
预设比值区间与屏幕显示字号的对应关系；The correspondence between the preset ratio interval and the screen display font size;
若所述第一比值R1与所述第二比值R2属于同一比值区间，则不对所述
终端的屏幕文字显示进行调整；If the first ratio R 1 and the second ratio R 2 belong to the same ratio interval, the screen text display of the terminal is not adjusted;
若所述第一比值R1与所述第二比值R2不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第二比值R2所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the first ratio R 1 and the second ratio R 2 do not belong to the same ratio interval, determining, according to a correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the second ratio R 2 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size.
方式二、根据所述第二人脸区域的横向分辨率为Y1及所述第二人脸区域的横向分辨率为Y2，调整所述终端的屏幕文字显示：The second mode adjusts the screen text display of the terminal according to the horizontal resolution of the second human face region Y 1 and the horizontal resolution of the second human face region is Y 2 :
根据所述第一人脸区域的横向分辨率Y1以及所述终端的屏幕横向分辨率Yc，确定第三比值
以及根据所述第二人脸区域的横向分辨率Y2以及所述终端的屏幕横向分辨率Yc，确定第四比值
Determining a third ratio according to the horizontal resolution Y 1 of the first face region and the screen lateral resolution Y c of the terminal And determining a fourth ratio according to the horizontal resolution Y 2 of the second face region and the screen lateral resolution Y c of the terminal
预设比值区间与屏幕显示字号的对应关系；The correspondence between the preset ratio interval and the screen display font size;
若所述第三比值R3与所述第四比值R4属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the third ratio R 3 and the fourth ratio R 4 belong to the same ratio interval, the screen text display of the terminal is not adjusted;
若所述第三比值R3与所述第四比值R4不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第四比值R4所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the third ratio R 3 and the fourth ratio R 4 do not belong to the same ratio interval, determining, according to the correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the fourth ratio R 4 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size.
这里，可以根据实际需求从区间0～1预设多个比值区间，例如，预设五个比值区间(0～0.2]、(0.2～0.33]、(0.33～0.5]、(0.5～0.75]、(0.75～1]，并为比值区间分别设置对应的屏幕显示字号；由于，比值区间中的数值越小说明人脸区域越小，即人脸离终端的前置摄像头越远，因此，为方便用户使用需要按照上述规律为数值较小的比值区间设置对应相对较大的屏幕字体，为数值较大的比值区间设置对应相对较小的屏幕显示字号，例如，设置比值区间(0～0.2]对应的屏幕显示字号为16sp，其中，sp为Android
默认字号单位；设置比值区间(0.2～0.33]对应的屏幕显示字号为15sp；设置比值区间(0.33～0.5]对应的屏幕显示字号为14sp；设置比值区间(0.5～0.75]对应的屏幕显示字号为13sp；设置比值区间(0.75～1]对应的屏幕显示字号为12sp；预设的比值区间与屏幕显示字号的对应关系如表1所示。Here, a plurality of ratio intervals may be preset from the interval 0 to 1 according to actual needs, for example, preset five ratio intervals (0 to 0.2), (0.2 to 0.33), (0.33 to 0.5), (0.5 to 0.75), (0.75~1], and set the corresponding screen display font size for the ratio interval; because the smaller the value in the ratio interval is, the smaller the face area is, that is, the farther the face is from the front camera of the terminal, therefore, for convenience The user needs to set a corresponding relatively large screen font according to the above-mentioned rule, and set a relatively small screen display font size for a larger value interval, for example, setting a ratio interval (0 to 0.2). The screen displays the font size 16sp, where sp is Android
The default font size unit; set the ratio range (0.2 to 0.33) corresponding screen display font size is 15sp; set the ratio interval (0.33 ~ 0.5) corresponding screen display font size is 14sp; set the ratio interval (0.5 ~ 0.75) corresponding screen display font size is 13sp; set the ratio range (0.75 ~ 1) corresponding to the screen display font size is 12sp; the preset ratio range and the screen display font size correspondence as shown in Table 1.
| 比值区间Ratio interval | 屏幕字号(单位：sp)Screen font size (unit: sp) |
| (0～0.2](0~0.2] | 16sp16sp |
| (0.2～0.33](0.2~0.33) | 15sp15sp |
| (0.33～0.5](0.33~0.5) | 14sp14sp |
| (0.5～0.75](0.5~0.75] | 13sp13sp |
| (0.75～1](0.75~1] | 12sp12sp |
表1Table 1
本发明实施例中，终端接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。如此，本发明实施例能根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，实时且动态地调整所述终端的屏幕文字显示，从而增强用户体验。In the embodiment of the present invention, when receiving the screen text display adjustment instruction, the terminal collects the first frame face image and the second frame face image of the current user through the camera of the terminal; and detects the first frame face image. a first face region and a second face region in the second frame face image; according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal Rate, adjust the screen text display of the terminal. As such, the embodiment of the present invention can adjust the screen text display of the terminal in real time and dynamically according to the resolution of the first face region, the resolution of the second face region, and the screen resolution of the terminal. To enhance the user experience.
为了更清楚地对本发明实施例进行说明，下面以实施例一为例，对本发明实施例中的动态调整终端屏幕文字显示的流程进行详细描述：In order to explain the embodiment of the present invention more clearly, the flow of the dynamic adjustment terminal screen text display in the embodiment of the present invention is described in detail below by using the first embodiment as an example:
该实施例一中，根据实际需求预设的比值区间与屏幕文字显示的对应关系如表1所示。In the first embodiment, the correspondence between the ratio interval preset and the screen text display according to the actual demand is as shown in Table 1.
若终端的屏幕纵向分辨率为300像素，检测出的当前帧人脸图像中人脸区域的纵向分辨率为100像素，根据纵向分辨率100像素以及所述终端的屏幕纵向分辨率300像素，确定第一比值
在时间间隔0.5S之后，检测出的当前帧的下一帧人脸图像中人脸区域的纵向分辨率为140
像素，根据纵向分辨率140像素以及所述终端的屏幕纵向分辨率300像素，确定第二比值
由于0.333与0.47属于同一比值区间(0.33～0.5]，因此，不对所述终端的屏幕文字显示进行调整，依然根据0.333对应的屏幕显示字号14号调整所述终端的屏幕文字显示；If the vertical resolution of the screen of the terminal is 300 pixels, the detected vertical resolution of the face region in the current frame face image is 100 pixels, and is determined according to the vertical resolution of 100 pixels and the screen vertical resolution of the terminal is 300 pixels. First ratio After the time interval of 0.5S, the detected vertical resolution of the face region in the next frame of the current frame is 140 pixels, which is determined according to the vertical resolution of 140 pixels and the screen vertical resolution of the terminal is 300 pixels. Second ratio Since 0.333 and 0.47 belong to the same ratio interval (0.33 to 0.5), the screen text display of the terminal is not adjusted, and the screen text display of the terminal is still adjusted according to the screen display font number corresponding to 0.333;
将下一帧人脸图像作为当前帧人脸图像，则
在时间间隔0.5S之后，检测出下下一帧人脸图像中人脸区域的纵向分辨率为160像素，根据纵向分辨率160像素以及所述终端的屏幕横向分辨率300像素，确定第二比值
由于0.47与0.533不属于同一比值区间，分属于两个比值区间(0.33～0.5]及(0.5～0.75]，因此，根据0.533所属比值区间对应的屏幕显示字号13号，调整所述终端的屏幕文字显示，即：将屏幕显示字号14号调整为13号，如此，实时且动态地调整终端屏幕文字显示，从而增强用户体验。The next frame face image is used as the current frame face image, then After the time interval of 0.5S, it is detected that the vertical resolution of the face region in the next frame of the face image is 160 pixels, and the second ratio is determined according to the vertical resolution of 160 pixels and the screen lateral resolution of the terminal of 300 pixels. Since 0.47 and 0.533 do not belong to the same ratio interval, they belong to two ratio intervals (0.33 to 0.5) and (0.5 to 0.75). Therefore, the screen text of the terminal is adjusted according to the screen display font number corresponding to the ratio interval of 0.533. Display, that is, adjust the screen display font size 14 to the number 13, so that the terminal screen text display is adjusted in real time and dynamically, thereby enhancing the user experience.
为实现上述方法，本发明实施例提供了一种终端，由于该终端解决问题的原理与方法相似，因此，终端的实施过程及实施原理均可以参见前述方法的实施过程及实施原理描述，重复之处不再赘述。In order to implement the foregoing method, the embodiment of the present invention provides a terminal. The principle and method for solving the problem are similar. Therefore, the implementation process and implementation principles of the terminal can be described in the implementation process and implementation principles of the foregoing method. I won't go into details here.
如图2所示，本发明实施例提供的终端，包括：图像采集单元200、区域检测单元201、显示调整单元202；其中，As shown in FIG. 2, the terminal provided by the embodiment of the present invention includes: an image collecting unit 200, an area detecting unit 201, and a display adjusting unit 202;
所述图像采集单元200，配置为接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；The image capturing unit 200 is configured to collect, by the camera of the terminal, a first frame face image and a second frame face image of the current user when receiving the screen text display adjustment instruction;
所述区域检测单元201，配置为检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；The area detecting unit 201 is configured to detect a first face area in the first frame face image and a second face area in the second frame face image;
所述字体调整单元202，配置为向所述图像采集单元200发送屏幕文字显示调整指令；并根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。
The font adjustment unit 202 is configured to send a screen text display adjustment instruction to the image collection unit 200; and according to the resolution of the first face region, the resolution of the second face region, and the terminal The screen resolution adjusts the screen text display of the terminal.
以上功能单元或模块的划分方式仅为本发明实施例给出的一种优选实现方式，功能单元或模块的划分方式不构成对本发明的限制。The division of the above functional units or modules is only a preferred implementation manner of the embodiments of the present invention, and the division manner of the functional units or modules does not constitute a limitation of the present invention.
具体实施中，所述图像采集单元200具体配置为：In a specific implementation, the image collection unit 200 is specifically configured to:
按照设定时间间隔方式，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像。According to the set time interval manner, the first frame face image and the second frame face image of the current user are collected by the camera of the terminal.
具体实施中，所述区域检测单元201具体配置为：In a specific implementation, the area detecting unit 201 is specifically configured to:
对所述第一帧人脸图像及所述第二帧人脸图像分别进行预处理；Performing preprocessing on the first frame face image and the second frame face image respectively;
根据人脸检测算法以及人脸追踪算法，检测预处理后的第一帧人脸图像中的第一人脸区域及预处理后的第二帧人脸图像中的第二人脸区域。According to the face detection algorithm and the face tracking algorithm, the first face region in the preprocessed first frame face image and the second face region in the preprocessed second frame face image are detected.
具体实施中，所述显示调整单元202具体配置为：In a specific implementation, the display adjustment unit 202 is specifically configured to:
所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2；The resolution of the first face region is preset to be X 1 *Y 1 , and the resolution of the second face region is preset to be X 2 *Y 2 ;
根据所述第一人脸区域的纵向分辨率X1以及所述终端的屏幕纵向分辨率Xc，确定第一比值
以及根据所述第二人脸区域的纵向分辨率X2以及所述终端的屏幕纵向分辨率Xc，确定第二比值
Determining a first ratio according to a vertical resolution X 1 of the first face region and a screen longitudinal resolution X c of the terminal And determining a second ratio according to a vertical resolution X 2 of the second face region and a screen longitudinal resolution X c of the terminal
若所述第一比值R1与所述第二比值R2属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the first ratio R 1 and the second ratio R 2 belong to the same ratio interval, the screen text display of the terminal is not adjusted;
若所述第一比值R1与所述第二比值R2不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第二比值R2所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the first ratio R 1 and the second ratio R 2 do not belong to the same ratio interval, determining, according to a correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the second ratio R 2 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size.
具体实施中，所述显示调整单元202具体配置为：In a specific implementation, the display adjustment unit 202 is specifically configured to:
所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2；
The resolution of the first face region is preset to be X 1 *Y 1 , and the resolution of the second face region is preset to be X 2 *Y 2 ;
根据所述第一人脸区域的横向分辨率Y1以及所述终端的屏幕横向分辨率Yc，确定第三比值
以及根据所述第二人脸区域的横向分辨率Y2以及所述终端的屏幕横向分辨率Yc，确定第四比值
Determining a third ratio according to the horizontal resolution Y 1 of the first face region and the screen lateral resolution Y c of the terminal And determining a fourth ratio according to the horizontal resolution Y 2 of the second face region and the screen lateral resolution Y c of the terminal
若所述第三比值R3与所述第四比值R4属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the third ratio R 3 and the fourth ratio R 4 belong to the same ratio interval, the screen text display of the terminal is not adjusted;
若所述第三比值R3与所述第四比值R4不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第四比值R4所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the third ratio R 3 and the fourth ratio R 4 do not belong to the same ratio interval, determining, according to the correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the fourth ratio R 4 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size.
在实际应用中，所述图像采集单元200、区域检测单元201、显示调整单元202可由位于所述终端的中央处理器(CPU)、微处理器(MPU)、数字信号处理器(DSP)、或现场可编程门阵列(FPGA)实现。In an actual application, the image acquisition unit 200, the area detecting unit 201, and the display adjustment unit 202 may be located by a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP), or Field Programmable Gate Array (FPGA) implementation.
本发明所述的方法并不限于具体实施方式中所述的实施例，本领域技术人员根据本发明的技术方案得出其它的实施方式，同样属于本发明的技术创新范围。The method described in the present invention is not limited to the embodiments described in the specific embodiments, and other embodiments are obtained by those skilled in the art according to the technical solutions of the present invention, which also belong to the technical innovation scope of the present invention.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention
综合上述本发明的实施例，能够根据第一人脸区域的分辨率、第二人脸区域的分辨率以及终端的屏幕分辨率，在不增加成本和携带复杂度的同时，实时且动态地调整所述终端的屏幕文字显示，增强了用户体验。
According to the foregoing embodiments of the present invention, the real-time and dynamic adjustment can be performed according to the resolution of the first face region, the resolution of the second face region, and the screen resolution of the terminal without increasing cost and carrying complexity. The screen text display of the terminal enhances the user experience.
Claims (10)
- 一种动态调整终端屏幕文字显示的方法，所述方法包括：A method for dynamically adjusting a screen display of a terminal screen, the method comprising:终端接收到屏幕文字显示调整指令时，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；When receiving the screen text display adjustment instruction, the terminal collects the first frame face image and the second frame face image of the current user through the camera of the terminal;检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；Detecting a first face region in the first frame face image and a second face region in the second frame face image;根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。Adjusting a screen text display of the terminal according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal.
- 根据权利要求1所述的方法，其中，所述通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像，包括：The method according to claim 1, wherein the capturing, by the camera of the terminal, the first frame face image and the second frame face image of the current user comprises:按照设定时间间隔方式，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像。According to the set time interval manner, the first frame face image and the second frame face image of the current user are collected by the camera of the terminal.
- 根据权利要求1所述的方法，其中，所述检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域，包括：The method according to claim 1, wherein the detecting the first face area in the first frame face image and the second face area in the second frame face image comprises:对所述第一帧人脸图像及所述第二帧人脸图像分别进行预处理；Performing preprocessing on the first frame face image and the second frame face image respectively;根据人脸检测算法以及人脸追踪算法，检测预处理后的第一帧人脸图像中的第一人脸区域及预处理后的第二帧人脸图像中的第二人脸区域。According to the face detection algorithm and the face tracking algorithm, the first face region in the preprocessed first frame face image and the second face region in the preprocessed second frame face image are detected.
- 根据权利要求1至3任一项所述的方法，其中，所述根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示，包括：The method according to any one of claims 1 to 3, wherein the adjusting according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal The screen text display of the terminal includes:所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2；The resolution of the first face region is preset to be X 1 *Y 1 , and the resolution of the second face region is preset to be X 2 *Y 2 ;根据所述第一人脸区域的纵向分辨率X1以及所述终端的屏幕纵向分辨率Xc，确定第一比值以及根据所述第二人脸区域的纵向分辨率X2 以及所述终端的屏幕纵向分辨率Xc，确定第二比值
Determining a first ratio according to a vertical resolution X 1 of the first face region and a screen longitudinal resolution X c of the terminal
And determining a second ratio according to a vertical resolution X 2 of the second face region and a screen longitudinal resolution X c of the terminal若所述第一比值R1与所述第二比值R2属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the first ratio R 1 and the second ratio R 2 belong to the same ratio interval, the screen text display of the terminal is not adjusted;若所述第一比值R1与所述第二比值R2不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第二比值R2所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the first ratio R 1 and the second ratio R 2 do not belong to the same ratio interval, determining, according to a correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the second ratio R 2 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size. - 根据权利要求1至3任一项所述的方法，其中，所述根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示，包括：The method according to any one of claims 1 to 3, wherein the adjusting according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal The screen text display of the terminal includes:所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2；The resolution of the first face region is preset to be X 1 *Y 1 , and the resolution of the second face region is preset to be X 2 *Y 2 ;根据所述第一人脸区域的横向分辨率Y1以及所述终端的屏幕横向分辨率Yc，确定第三比值以及根据所述第二人脸区域的横向分辨率Y2以及所述终端的屏幕横向分辨率Yc，确定第四比值
Determining a third ratio according to the horizontal resolution Y 1 of the first face region and the screen lateral resolution Y c of the terminal
And determining a fourth ratio according to the horizontal resolution Y 2 of the second face region and the screen lateral resolution Y c of the terminal若所述第三比值R3与所述第四比值R4属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the third ratio R 3 and the fourth ratio R 4 belong to the same ratio interval, the screen text display of the terminal is not adjusted;若所述第三比值R3与所述第四比值R4不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第四比值R4所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the third ratio R 3 and the fourth ratio R 4 do not belong to the same ratio interval, determining, according to the correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the fourth ratio R 4 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size. - 一种终端，所述终端包括：图像采集单元、区域检测单元、显示调整单元；其中，A terminal, the terminal includes: an image acquisition unit, an area detection unit, and a display adjustment unit; wherein所述图像采集单元，配置为接收到屏幕字体调整指令时，通过所述终 端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像；The image acquisition unit is configured to receive the screen font adjustment instruction The camera of the end captures the first frame face image and the second frame face image of the current user;所述区域检测单元，配置为检测所述第一帧人脸图像中第一人脸区域及所述第二帧人脸图像中第二人脸区域；The area detecting unit is configured to detect a first face area in the first frame face image and a second face area in the second frame face image;所述显示调整单元，配置为向所述图像采集单元发送屏幕字体调整指令；并根据所述第一人脸区域的分辨率、所述第二人脸区域的分辨率以及所述终端的屏幕分辨率，调整所述终端的屏幕文字显示。The display adjustment unit is configured to send a screen font adjustment instruction to the image collection unit; and according to a resolution of the first face region, a resolution of the second face region, and a screen resolution of the terminal Rate, adjust the screen text display of the terminal.
- 根据权利要求6所述的终端，其中，所述图像采集单元配置为：The terminal of claim 6, wherein the image acquisition unit is configured to:按照设定时间间隔方式，通过所述终端的摄像头采集当前用户的第一帧人脸图像及第二帧人脸图像。According to the set time interval manner, the first frame face image and the second frame face image of the current user are collected by the camera of the terminal.
- 根据权利要求6所述的终端，其中，所述区域检测单元配置为：The terminal according to claim 6, wherein the area detecting unit is configured to:对所述第一帧人脸图像及所述第二帧人脸图像分别进行预处理；Performing preprocessing on the first frame face image and the second frame face image respectively;根据人脸检测算法以及人脸追踪算法，检测预处理后的第一帧人脸图像中的第一人脸区域及预处理后的第二帧人脸图像中的第二人脸区域。According to the face detection algorithm and the face tracking algorithm, the first face region in the preprocessed first frame face image and the second face region in the preprocessed second frame face image are detected.
- 根据权利要求6至8任一项所述的终端，其中，所述显示调整单元配置为：The terminal according to any one of claims 6 to 8, wherein the display adjustment unit is configured to:所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2；The resolution of the first face region is preset to be X 1 *Y 1 , and the resolution of the second face region is preset to be X 2 *Y 2 ;根据所述第一人脸区域的纵向分辨率X1以及所述终端的屏幕纵向分辨率Xc，确定第一比值以及根据所述第二人脸区域的纵向分辨率X2以及所述终端的屏幕纵向分辨率Xc，确定第二比值
Determining a first ratio according to a vertical resolution X 1 of the first face region and a screen longitudinal resolution X c of the terminal
And determining a second ratio according to a vertical resolution X 2 of the second face region and a screen longitudinal resolution X c of the terminal若所述第一比值R1与所述第二比值R2属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the first ratio R 1 and the second ratio R 2 belong to the same ratio interval, the screen text display of the terminal is not adjusted;若所述第一比值R1与所述第二比值R2不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第二比值R2所属的比值 区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。If the first ratio R 1 and the second ratio R 2 do not belong to the same ratio interval, determining, according to a correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the second ratio R 2 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size. - 根据权利要求6至8任一项所述的终端，其中，所述显示调整单元配置为：The terminal according to any one of claims 6 to 8, wherein the display adjustment unit is configured to:所述第一人脸区域的分辨率预设为X1*Y1、所述第二人脸区域的分辨率预设为X2*Y2；The resolution of the first face region is preset to be X 1 *Y 1 , and the resolution of the second face region is preset to be X 2 *Y 2 ;根据所述第一人脸区域的横向分辨率Y1以及所述终端的屏幕横向分辨率Yc，确定第三比值以及根据所述第二人脸区域的横向分辨率Y2以及所述终端的屏幕横向分辨率Yc，确定第四比值
Determining a third ratio according to the horizontal resolution Y 1 of the first face region and the screen lateral resolution Y c of the terminal
And determining a fourth ratio according to the horizontal resolution Y 2 of the second face region and the screen lateral resolution Y c of the terminal若所述第三比值R3与所述第四比值R4属于同一比值区间，则不对所述终端的屏幕文字显示进行调整；If the third ratio R 3 and the fourth ratio R 4 belong to the same ratio interval, the screen text display of the terminal is not adjusted;若所述第三比值R3与所述第四比值R4不属于同一比值区间，则根据预设的比值区间与屏幕显示字号的对应关系确定所述第四比值R4所属的比值区间所对应的屏幕显示字号，根据对应的屏幕显示字号调整所述终端的屏幕文字显示。 If the third ratio R 3 and the fourth ratio R 4 do not belong to the same ratio interval, determining, according to the correspondence between the preset ratio interval and the screen display font size, the ratio interval corresponding to the fourth ratio R 4 The screen displays the font size, and the screen text display of the terminal is adjusted according to the corresponding screen display font size.
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