WO2011103742A1 - 画面控制方法及电子设备 - Google Patents

画面控制方法及电子设备 Download PDF

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Publication number
WO2011103742A1
WO2011103742A1 PCT/CN2010/076232 CN2010076232W WO2011103742A1 WO 2011103742 A1 WO2011103742 A1 WO 2011103742A1 CN 2010076232 W CN2010076232 W CN 2010076232W WO 2011103742 A1 WO2011103742 A1 WO 2011103742A1
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WIPO (PCT)
Prior art keywords
user
detecting
detection element
vector direction
user plane
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PCT/CN2010/076232
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English (en)
French (fr)
Inventor
陈恩
Original Assignee
华为终端有限公司
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Publication of WO2011103742A1 publication Critical patent/WO2011103742A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013Eye tracking input arrangements
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/161Indexing scheme relating to constructional details of the monitor
    • G06F2200/1614Image rotation following screen orientation, e.g. switching from landscape to portrait mode

Definitions

  • the present invention relates to the field of image processing technologies, and in particular, to a screen control method and an electronic device. Background technique
  • the picture played by the mobile phone always keeps the positive direction upwards. This is because the mobile phone detects the direction of gravity through the direction sensing sensor, so that the positive direction of the picture played by the mobile phone is always upward, so that as long as the person Standing on the plane of the vertical surface, you can see the picture played by the mobile phone.
  • the direction sensing sensor cannot detect the gravity direction, so the positive direction of the played picture cannot be guaranteed to be upward, which causes great inconvenience to the user.
  • the user stands on a plane that is not perpendicular to the surface, since the positive direction of the playback picture is at an angle to the forward direction of the face, the user needs to squint or rotate the head to view the played picture, causing great inconvenience to the user.
  • Embodiments of the present invention provide a screen control method and an electronic device, which are convenient for a user to view a screen on a display screen.
  • a picture control method includes:
  • the first detection element and the second detection element in the scene where the user is located are detected at the first moment, and an initial value of the direction of the user plane vector is determined, where the direction of the user plane vector is the first detection The direction of connection to the second detection element;
  • the play screen The vector direction is the connection direction of the first feature point to the second feature point in the playback picture.
  • An electronic device comprising:
  • a detecting unit configured to determine whether the first detecting element and the second detecting element in the scene where the user is located are detected, and when detecting the first detecting element and the second detecting element in the scene where the user is located, determining the user plane vector according to the detection result a value of the direction; the user plane vector direction is a connection direction of the first detection element to the second detection element;
  • a calculating unit configured to determine, according to the value of the user plane vector direction determined by the detecting unit at the first moment and the value of the user plane vector direction determined by the detecting unit at the second moment, the user plane vector direction rotation from the first moment to the second moment Angle value
  • control unit configured to control the playback screen vector direction to rotate the angle value.
  • a picture control method includes:
  • An electronic device comprising:
  • a detecting unit configured to detect the first detecting element and the second detecting element, and determine a current value of a direction of the user's face vector
  • a calculating unit configured to: determine a current value of a user plane vector direction determined by the detecting unit and an initial value of a user plane vector direction, and determine a current value from an initial value of the user plane vector direction to a current value of the user plane vector direction An angle value;
  • control unit configured to control a rotation of the playback picture vector direction corresponding to the first angle value The second angle value.
  • the angle value of the user plane vector direction from the first time to the second time is determined according to the user plane vector direction value at the second time and the user plane vector direction value at the first time, thereby controlling the rotation direction of the playback picture vector direction.
  • the angle value is used to ensure that when the direction of the detection element on the user plane is rotated, the direction of the played picture is also rotated synchronously, which is convenient for the user to view the picture.
  • FIG. 1 is a flowchart of a picture control method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of another picture control method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a reference coordinate system provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a user plane vector direction at time T1 according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a vector direction of a T1 time play picture according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a user plane vector direction at time T2 according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing the rotation of the user plane vector direction from the time T1 to the time T2 according to the embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing the rotation of the playback picture vector direction from the time T1 to the time T2 according to the embodiment of the present invention.
  • FIG. 9 is a structural diagram of an electronic device according to an embodiment of the present invention.
  • FIG. 10 is a flow chart of another embodiment of a screen control method of the present invention. detailed description
  • an embodiment of the present invention provides a picture control method, where the method includes:
  • the first detection element and the second detection element in the scene where the user is located are detected at the first moment, and an initial value of the user plane vector direction is determined, where the user plane vector direction is the connection of the first detection element to the second detection element.
  • first detecting element and the second detecting element are located on a user's body in the scene; or The first detection element and the second detection element are located on an object other than the user's body in the scene, such as a book located in the scene in which the user is located.
  • Detection can be performed by an image pickup component such as a camera, and detection elements can be detected by image recognition technology.
  • the electronic device may determine the elements to be detected in the following two ways:
  • the first mode the electronic device acquires a preset detection element mark, and determines, according to the detection element mark, the element to be detected as the first detection element and
  • the second detecting element prompts the information of the element to be detected, so as to prompt the user that the element to be detected is the first detecting element and the second detecting element.
  • the electronic device may prompt the user to detect the component in multiple manners, for example, the electronic device plays the notification message to notify the user of the component to be detected; or the electronic device controls the display screen to output the text prompt information to prompt the user for the component to be detected.
  • the detection element flag may be a template or sample data for image recognition, or other data that can mark the detection element.
  • the electronic device receives an instruction of the user to specify the detection element, and determines the element to be detected according to the instruction.
  • the electronic device can provide some detection elements for the user to select, and after receiving the instruction of the user to specify a certain two detection elements, the elements to be detected can be determined. It is also possible for the user to click on the screen to select a detection element, for example, to capture the current scene, and let the user select the detection element, and the electronic device recognizes and records the element selected by the user through image recognition technology.
  • the first detection element and the second detection element are detected at the second moment, and the current value of the user plane vector direction is determined;
  • the direction of rotation can be expressed by the positive and negative of the angle value, for example, counterclockwise rotation with a positive value and clockwise rotation with a negative value.
  • the process of the electronic device controlling the rotation of the angle value in the vector direction of the playback screen is to rotate the playback screen by the angle value.
  • a posture adjustment message may be presented, where the posture adjustment message is used to prompt the user to adjust the posture, and re-detect the first Detecting elements and second detecting elements, determining user plane vectors
  • the current value of the direction is determined according to the current value of the user plane vector direction and the initial value of the user plane vector direction to determine the angle value of the user plane vector direction rotation, and the playback picture vector direction is controlled to rotate the angle value.
  • the angle value of the user plane vector direction from the first time to the second time is determined according to the user plane vector direction value at the second moment and the user plane vector direction value at the first moment, and then the playback screen vector direction rotation is controlled.
  • the angle value ensures that when the user plane vector rotates, the direction of the played picture also rotates synchronously, which is convenient for the user to view the picture.
  • FIG. 2 is a flow chart showing an embodiment of the picture control method, and the method specifically includes:
  • the electronic device After receiving the instruction to start the image rotation, the electronic device acquires the preset detection element mark, and determines, according to the detection element mark, that the element to be detected is the two eyes of the user, and prompts the user that the element to be detected is the user's two eyes. And prompting the user to adjust the direction of the electronic device or sitting posture to ensure that the user can comfortably view the picture of the electronic device.
  • the electronic device may prompt the user to detect the component in multiple manners, such as the electronic device playing the notification message, notifying the user that the element to be detected is the two eyes of the user; or outputting the text prompt information on the electronic device control display screen,
  • the element that prompts the user to be detected is the user's eyes.
  • the user's eyes are only an example of the detection element, and other detection elements can also be selected.
  • the electronic device establishes a reference coordinate system, and uses a camera to detect the user's eyes, and determines a value of a user plane vector direction in the reference coordinate system when the current time is determined as T1.
  • the user plane vector direction is the first detection element (user left) Eye) to the connection direction of the second detection element (the right eye of the user); and selecting two feature points (the first feature point and the second feature point) in the play picture, determining the value of the vector direction of the play picture at the current time, wherein
  • the playback picture vector direction is a connection direction of the first feature point to the second feature point.
  • the user plane vector and the playback picture vector determined in this step are all based on the reference coordinate system.
  • the reference coordinate system established by the electronic device in this step may be a static coordinate system. Assuming that the display screen of the electronic device is rectangular, the electronic device uses the intersection of the diagonal lines of the display screen as the coordinate origin, and determines that the long side is the Y axis of the coordinate system and the short side is the X axis of the coordinate system, wherein FIG. 3 shows A specific example of the reference coordinate system established in this step is shown.
  • the display screen of the electronic device described above is a rectangular shape, which is only an exemplary description, and the electronic device of the embodiment of the present invention
  • the display screen of any shape can be used, and the selection of the coordinate origin, the Y-axis, and the X-axis of the reference coordinate system can also be implemented in other manners, and details are not described herein again.
  • the electronic device can detect the user's eyes using the camera.
  • the camera captures the user's face image, and obtains the two blackest features similar to the elliptical shape in the user's face image, and saves the The data of two features, these two features are two detection elements.
  • the position of the eye can also be judged by other algorithms for image recognition, which is not limited herein.
  • the two detection elements are converted into the reference coordinate system. Assume that the value of the connection direction (user plane vector direction) of the first detection element to the second detection element at the current time is "face feature direction - tl". Specifically as shown in Figure 4.
  • the value of the vector direction of the playback picture determined in this step is "play picture direction - tl".
  • the play picture coincides with the display of the electronic device, and FIG. 5 specifically shows "play picture direction - tl".
  • the electronic device periodically uses a camera to detect a user's eye position, and determines a value of a user plane vector direction in the reference coordinate system.
  • the electronic device can control the camera to periodically capture the user's face image, and determine the eyes in the face image according to the data of the two features saved in advance, according to the coordinates of the face image.
  • the relationship between the system and the reference coordinate system, the two detection elements are converted into the reference coordinate system, assuming that the direction of the first detection element to the second detection element at time T2 is the face feature direction - 12, as shown in FIG. .
  • the electronic device compares the value of the user plane vector direction at T1 ("face feature direction - tl") and the value of the user plane vector direction at time T2 ("face feature direction - 12,,”), calculates from time T1 to T2 The angle A at which the user plane is rotated in the vector direction.
  • FIG. 7 is a schematic diagram of the process of finding the angle A.
  • the electronic device controls a rotation angle of the vector direction of the playback screen.
  • the electronic device controls the direction of the playback picture vector clockwise rotation angle A, and the direction value of the rotated play picture vector is "play picture direction - t2", as shown in FIG.
  • the electronic device controls the vector direction of the playback screen to rotate clockwise by the angle A, which is equivalent to rotating the entire playback screen clockwise by the angle A, so that the correspondence between the user and the playback screen remains unchanged, and the user is convenient to view the screen on the display screen.
  • the two moments (T1 and T2) are exemplarily illustrated, and the subsequent electronic device will detect the value of the user plane vector direction at the time T3 (assumed to be "face feature direction - t3") and the user at time T2.
  • the value of the plane vector direction (“face feature direction - t2") is compared, and the rotation angle B of the user plane vector direction from the time T2 to the time T3 is calculated, and then the direction of the playback picture vector is controlled to perform the corresponding rotation.
  • the electronic device does not detect the left eye or the right eye of the user by using the camera in step 205, the user is prompted to adjust the posture, and the scanning is performed again to obtain the current value of the user face vector direction, according to the current value of the user face vector direction and the user face.
  • the initial value of the vector direction (“face feature direction J1"), determine the angle value of the user plane vector rotation, control the playback screen vector to rotate the angle value, and prompt the user to adjust the posture in various ways, for example, by means of voice notification, Or use the prompt message on the display to prompt the user to adjust the posture.
  • face feature direction J1 determine the angle value of the user plane vector rotation
  • the playback screen vector to rotate the angle value
  • prompt the user to adjust the posture in various ways, for example, by means of voice notification, Or use the prompt message on the display to prompt the user to adjust the posture.
  • the electronic device detects the user's eyes using the camera, when the user's face image of the captured user does not have the user's eyes, it means that
  • the user plane vector direction value at the second time and the user plane vector direction value at the first time determine the angle value of the user plane vector direction rotation from the first time to the second time, thereby controlling the playback direction of the playback picture vector.
  • the angle value ensures that when the user's head is rotated, the player can ensure that the user faces the playback screen and improves the user experience when the user adjusts the posture at will.
  • the technical solution can be widely applied to navigation products such as Global Positioning System (GPS), Map, etc.; and when the user is in a weightless scene, the played picture also moves according to the user's head rotation, which is convenient for the user to watch. Further, the technical solution of the embodiment of the present invention can prevent the display screen from being shaken.
  • another embodiment of the present invention provides a picture control method, including the following steps:
  • the first detecting element and the second detecting element are located on the user's body in the scene; or the first detecting element and the second detecting element are located on an object of the scene that is not the user's body, such as a book located in the scene of the user. on.
  • Detection can be performed by an image pickup component such as a camera, and detection elements can be detected by image recognition technology.
  • the playback picture vector direction rotates a second angle value corresponding to the first angle value, and the play picture vector direction is a connection direction of the first feature point to the second feature point in the play picture.
  • the initial value of the user plane vector direction may be determined in advance, or may be preset, for example, set in advance to the horizontal direction.
  • the second angle value may or may not be equal to the first angle value.
  • the rotation threshold can be set as needed, for example, 45 degrees or 30 degrees, etc., and the threshold value can be preset in the electronic device in advance, or can be set by the user.
  • the second angle value in many cases, such as looking at text, it is appropriate to set the second angle value to an integer multiple of 90 degrees.
  • the direction of rotation can be expressed by the positive and negative of the angle value, for example, counterclockwise rotation with a positive value and clockwise rotation with a negative value.
  • the angle value of the user plane vector direction rotation is determined according to the current value of the user plane vector direction and the initial value of the user plane vector direction, and then the corresponding angle value of the playback screen vector direction is controlled to facilitate the user to view the screen.
  • the user can ensure that the user views the playback screen and improves the user experience.
  • the technical solution can be widely applied to navigation products such as Global Positioning System (GPS), Map, etc.; and when the user is in a weightless scene, or in a lying posture, the played picture is also rotated according to the user's head. Rotation occurs for the convenience of the user.
  • GPS Global Positioning System
  • an embodiment of the present invention provides an electronic device, including:
  • the detecting unit 901 is configured to determine whether the first detecting element in the scene where the user is located is detected a second detection element, when detecting the first detection element and the second detection element in the scene where the user is located, determining a value of the user plane vector direction according to the detection result; the user plane vector direction is the first detection element to the second detection element Connection direction
  • the calculating unit 902 is configured to determine, according to the value of the user plane vector direction determined by the detecting unit 901 at the first moment and the value of the user plane vector direction determined by the detecting unit 901 at the second moment, the user plane from the first moment to the second moment The angle value of the vector direction rotation;
  • the control unit 903 is configured to control the direction of the playback picture vector to rotate the angle value.
  • the first detecting element and the second detecting element are located on the user's body in the scene where the user is located; or the first detecting element and the second detecting element are located on the non-user body object in the scene where the user is located.
  • the detecting unit 901 is further configured to prompt a posture adjustment message when the first detecting element and/or the second detecting element are not detected, the posture adjusting message It is used to prompt the user to adjust the posture, re-detect the first detection element and the second detection element, and determine the value of the user plane vector direction according to the detection result.
  • the electronic device also includes:
  • the first detecting element determining unit 904 is configured to acquire a preset detecting element mark, and determine, according to the detecting element mark, the element to be detected by the detecting unit as the first detecting element and the second detecting element.
  • the display unit 905 is configured to display the information of the to-be-detected element determined by the first detecting element determining unit 904.
  • the voice playing unit 906 is configured to play a notification message, where the notification message is used to notify the first detecting element determining unit. 904 determines the information of the element to be detected.
  • the electronic device further includes a second detecting element determining unit, configured to receive an instruction of the user to specify the detecting element, and determine, according to the instruction, the element to be detected by the detecting unit 901 as the first detecting element and the second detecting element.
  • a second detecting element determining unit configured to receive an instruction of the user to specify the detecting element, and determine, according to the instruction, the element to be detected by the detecting unit 901 as the first detecting element and the second detecting element.
  • the angle value of the user plane vector direction from the first time to the second time is determined according to the user plane vector direction value at the second time and the user plane vector direction value at the first time, thereby controlling the rotation direction of the playback picture vector direction.
  • the rotation angle value ensures that when the user's head rotates, the screen is viewed, and the user can ensure that the user faces the playback screen and improves the user experience when the user adjusts the posture at will.
  • the technical solution can be widely applied to GPS, Map and other navigation products; and when the user is in a weightless scene, the played picture also moves according to the user's head rotation, The user will watch it. Further, the technical solution of the embodiment of the present invention can prevent the display screen from being shaken.
  • Another embodiment of the present invention provides an electronic device, including:
  • the detecting unit 901 is configured to detect the first detecting element and the second detecting element, and determine a current value of the user plane vector direction;
  • the calculating unit 902 is configured to determine a current value of the user plane vector direction determined by the detecting unit 901 and an initial value of the user plane vector direction, and determine a current value rotation from an initial value of the user plane vector direction to a direction of the user plane vector direction First angle value;
  • the control unit 903 is configured to control a second angle value corresponding to the first angle value by the playback picture vector direction rotation.
  • the first detecting element and the second detecting element are located on the user's body in the scene; or the first detecting element and the second detecting element are located on an object of the scene that is not the user's body, such as a book located in the scene of the user. on.
  • Detection can be performed by an image pickup component such as a camera, and detection elements can be detected by image recognition technology.
  • the initial value of the user plane vector direction may be determined in advance, or may be preset, for example, set in advance to the horizontal direction.
  • the second angle value may or may not be equal to the first angle value.
  • the rotation threshold can be set as needed, for example, 45 degrees or 30 degrees, etc., and the threshold can be preset in the electronic device or set by the user.
  • the second angle value in many cases, such as looking at text, it is appropriate to set the second angle value to an integer multiple of 90 degrees.
  • the direction of rotation can be expressed by the positive and negative of the angle value, for example, counterclockwise rotation with a positive value and clockwise rotation with a negative value.
  • the electronic device in the above embodiments may be a handheld electronic device such as a mobile phone, a handheld game console, a tablet computer, or a GPS navigator.
  • the current value of the user plane vector direction and the initial value of the user plane vector direction determine the angle value of the user plane vector direction rotation, and then control the playback screen vector direction to rotate the corresponding angle value, so that the user can view the screen, and the user can
  • the technical solution can be widely applied to navigation products such as Global Positioning System (GPS), Map, etc.; and when the user is in a weightless scene, or in a lying posture, the played picture is also rotated according to the user's head. Rotation occurs for the convenience of the user.
  • GPS Global Positioning System
  • Map Map
  • the instructions may be programmed by the associated hardware, and the program may be stored in a computer readable storage medium such as a read only memory, a flash memory, a magnetic disk or an optical disk.

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Description

画面控制方法及电子设备 本申请要求于 2010 年 2 月 23 日提交中国专利局、 申请号为 201010115846.1、发明名称为 "画面控制方法及电子设备"的中国专利申请, 以及 2010年 7月 23 日提交中国专利局申请号为 201010239491.7、 发明名 称为 "画面控制方法及电子设备" 的中国专利申请的优先权, 其全部内容 通过引用包含于本申请中。 技术领域
本发明涉及图像处理技术领域, 特别涉及一种画面控制方法及电子设 备。 背景技术
现有技术中无论用户如何旋转手机, 手机播放的画面始终保持正方向 朝上, 这是由于手机通过方向感应传感器检测重力方向, 因而能保证手机 播放的画面正方向总是朝上, 这样只要人站在垂直地表的平面上, 就能观 赏到手机播放的画面了。
现有技术的缺点是:
如果手机和用户处于失重的场合, 方向感应传感器无法检测到重力方 向, 因此不能保证播放的画面的正方向朝上, 给用户观看造成很大不便。 而且如果用户在非垂直地表的平面站立时, 由于播放画面的正方向与人脸 正向有夹角, 用户需要斜眼或者旋转头部观看播放的画面, 给用户造成很 大不便。 发明内容
本发明实施例提供一种画面控制方法及电子设备, 方便用户观看显示 屏幕上的画面。
有鉴于此, 本发明实施例提供:
一种画面控制方法, 包括:
在第一时刻检测到用户所在场景中的第一检测要素和第二检测要素 , 确定用户面矢量方向的初始值, 其中, 所述用户面矢量方向是第一检测要 素到第二检测要素的连线方向;
在第二时刻检测到第一检测要素和第二检测要素, 确定用户面矢量方 向的当前值;
根据用户面矢量方向的当前值与用户面矢量方向的初始值, 确定从第 一时刻到第二时刻用户面矢量方向旋转的角度值, 控制播放画面矢量方向 旋转所述角度值, 所述播放画面矢量方向是播放画面中第一特征点到第二 特征点的连线方向。
一种电子设备, 包括:
检测单元 , 用于判断是否检测到用户所在场景中的第一检测元素和第 二检测元素, 当检测到用户所在场景中的第一检测元素和第二检测元素时, 根据检测结果确定用户面矢量方向的值; 所述用户面矢量方向是第一检测 元素到第二检测元素的连线方向;
计算单元, 用于根据检测单元在第一时刻确定的用户面矢量方向的值 和检测单元在第二时刻确定的用户面矢量方向的值, 确定从第一时刻到第 二时刻用户面矢量方向旋转的角度值;
控制单元, 用于控制播放画面矢量方向旋转所述角度值。
一种画面控制方法, 包括:
检测到用户所在场景中的第一检测要素和第二检测要素, 确定用户面 矢量方向的当前值;
根据用户面矢量方向的当前值与用户面矢量方向的初始值, 确定从所 述用户面矢量方向的初始值到所述用户面矢量方向的当前值旋转的第一角 度值, 控制播放画面矢量方向旋转与所述第一角度值对应的第二角度值, 所述播放画面矢量方向是播放画面中第一特征点到第二特征点的连线方 向。
一种电子设备, 包括:
检测单元, 用于检测到第一检测要素和第二检测要素, 确定用户面矢 量方向的当前值;
计算单元, 用于 居检测单元确定的用户面矢量方向的当前值和用户 面矢量方向的初始值, 确定从所述用户面矢量方向的初始值到所述用户面 矢量方向的当前值旋转的第一角度值;
控制单元, 用于控制播放画面矢量方向旋转与所述第一角度值对应的 第二角度值。
本发明实施例根据第二时刻的用户面矢量方向值与第一时刻的用户面 矢量方向值确定从第一时刻到第二时刻用户面矢量方向旋转的角度值, 进 而控制播放画面矢量方向旋转所述角度值, 保证在用户面上的检测要素的 方向发生旋转时, 所播放的画面的方向也同步旋转, 方便用户观看画面。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例中所需 要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发 明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的 前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例提供的一种画面控制方法流程图;
图 2是本发明实施例提供的另一种画面控制方法流程图;
图 3是本发明实施例提供的参考坐标系示意图;
图 4是本发明实施例提供的 T1时刻用户面矢量方向示意图;
图 5是本发明实施例提供的 T1时刻播放画面矢量方向示意图;
图 6是本发明实施例提供的 T2时刻用户面矢量方向示意图;
图 7是本发明实施例提供的 T1时刻到 T2时刻用户面矢量方向旋转示意 图;
图 8是本发明实施例提供的 T1时刻到 T2时刻播放画面矢量方向旋转示 意图;
图 9是本发明实施例提供的电子设备结构图;
图 10是本发明又一画面控制方法实施例的流程图。 具体实施方式
参阅图 1 , 本发明实施例提供一种画面控制方法, 该方法包括:
101、 在第一时刻检测到用户所在场景中的第一检测要素和第二检测要 素, 确定用户面矢量方向的初始值, 其中, 用户面矢量方向是第一检测要 素到第二检测要素的连线方向;
其中, 第一检测要素和第二检测要素位于场景中的用户身体上; 或者, 第一检测要素和第二检测要素位于场景中非用户身体的物体上, 比如位于 用户所在场景中的一本书上。
本发明实施例的各步驟可以由同一电子设备执行。 检测可以通过摄像 头等图像摄取元件进行 , 检测要素则可以通过图像识别技术检测出来。
在该步骤之前 , 电子设备可以有如下两种方式确定待检测的要素: 第一种方式: 电子设备获取预置的检测要素标记, 根据检测要素标记, 确定待检测的要素为第一检测要素和第二检测要素, 并提示待检测要素的 信息, 以便提示用户待检测的要素为第一检测要素和第二检测要素。 其中, 电子设备可以采用多种方式提示用户待检测的要素 , 比如电子设备播放通 知消息, 通知用户待检测的要素; 或者电子设备控制显示屏幕上输出文字 提示信息, 以提示用户待检测的要素。 这里, 检测要素标记可以是供图像 识别用的模板或样本数据, 或者其他可以标记检测要素的数据。
第二种方式, 电子设备接收用户指定检测要素的指令, 根据该指令, 确定待检测的要素。 具体的, 电子设备可以提供一些检测要素供用户选择, 接收用户指定某两个检测要素的指令后就能确定待检测的要素了。 也可以 让用户在屏幕上点击选择检测要素, 例如可以拍 ¾当前的场景, 让用户在 其中点选检测要素 , 电子设备则通过图像识别技术识别并记录下用户选择 的要素。
102、 在第二时刻检测到第一检测要素和第二检测要素, 确定用户面矢 量方向的当前值;
103、 ¾据用户面矢量方向的当前值与用户面矢量方向的初始值, 确定 从第一时刻到第二时刻用户面矢量方向旋转的角度值。
这里, 如本领域技术人员所知, 可以通过角度值的正负表示旋转的方 向, 例如以正值表示逆时针旋转, 以负值表示顺时针旋转。
104、 控制播放画面矢量方向旋转该角度值, 其中, 播放画面矢量方向 是播放画面中第一特征点到第二特征点的连线方向。
其中, 电子设备控制播放画面矢量方向旋转该角度值的过程即是将播 放画面旋转该角度值。
需要说明的是, 当在步驟 102中电子设备没有检测到第一检测要素和 / 或第二检测要素时, 则可以提示姿势调整消息, 该姿势调整消息用于提示 用户调整姿势, 重新检测第一检测要素和第二检测要素, 确定用户面矢量 方向的当前值 , 并才艮据用户面矢量方向的当前值与用户面矢量方向的初始 值确定用户面矢量方向旋转的角度值, 控制播放画面矢量方向旋转该角度 值。
本发明实施例根据第二时刻的用户面矢量方向值与第一时刻的用户面 矢量方向值确定从第一时刻到第二时刻用户面矢量方向旋转的角度值, 进 而控制播放画面矢量方向旋转该角度值, 保证在用户面矢量方向发生旋转 时, 所播放的画面的方向也同步旋转, 方便用户观看画面。
如下是对本发明提出的画面控制方法的详细描述, 图 2 示出了该画面 控制方法的一个实施例的流程图, 该方法具体包括:
201、 电子设备接收到启动图像转动的指令后, 获取预置的检测要素标 记, 根据检测要素标记, 确定待检测的要素为用户的两个眼睛, 提示用户 待检测的要素为用户的两个眼睛, 并提示用户调整电子设备方向或者坐姿 以保证用户能舒服的观赏到电子设备的画面。
具体的, 电子设备可以采用多种方式提示用户待检测的要素, 比如电 子设备播放通知消息, 通知用户待检测的要素为用户的两个眼睛; 或者电 子设备控制显示屏幕上输出文字提示信息, 以提示用户待检测的要素为用 户的眼睛。 当然, 这里以用户的眼睛为检测要素只是一个示例, 也可以选 择其他检测要素。
202、 电子设备建立参考坐标系, 使用摄像头检测用户的眼睛, 确定当 前时刻 艮定为 T1时刻)参考坐标系中用户面矢量方向的值, 其中, 用户 面矢量方向为第一检测要素 (用户左眼)到第二检测要素 (用户右眼) 的 连线方向; 并选取播放画面中的两个特征点 (第一特征点和第二特征点), 确定当前时刻播放画面矢量方向的值, 其中, 播放画面矢量方向为第一特 征点到第二特征点的连线方向。
该步驟中确定的用户面矢量及播放画面矢量均基于该参考坐标系。 其中, 该步驟中电子设备建立的参考坐标系可以为静态坐标系。 假定 电子设备的显示屏为长方形, 则电子设备以其显示屏对角线的交点为坐标 原点 , 确定长边为坐标系的 Y轴、 确定短边为坐标系的 X轴, 其中, 图 3 示出了本步驟所建立的参考坐标系的一个具体实例。 需要说明的是, 上述 描述电子设备的显示屏为长方形仅为示例性说明, 本发明实施例的电子设 备可以釆用任何形状的显示屏, 且参考坐标系的坐标原点、 Y轴、 X轴的 选取也可以有其他实现方式, 在此不再赘述。
该步驟及后续步驟中, 电子设备可以使用摄像头检测用户的眼睛, 具 体的, 摄像头拍摄用户的脸部图像, 获取用户脸部图像中两个最黑的近似 于椭圓形状的特征, 并保存这两个特征的数据, 这两个特征即为两个检测 要素。 当然, 也可以通过其他图像识别的算法来判断眼睛的位置, 这里不 做限定。 根据脸部图像所在坐标系与参考坐标系的关系, 将两个检测要素 转换到参考坐标系中。 假定当前时刻第一检测要素到第二检测要素的连接 方向 (用户面矢量方向) 的值为 "脸部特征方向— tl"。 具体如图 4所示。
殳定该步骤中确定的播放画面矢量方向的值为 "播放画面方向— tl " , 该实施例中假定播放画面与电子设备显示屏重合, 图 5具体示出了 "播放 画面方向— tl"。
203、 电子设备周期性使用摄像头检测用户的眼睛位置, 确定参考坐标 系中用户面矢量方向的值。
若电子设备是使用摄像头检测用户的眼睛, 电子设备可以控制摄像头 周期性的拍摄用户的脸部图像, 根据预先保存的两个特征的数据, 确定脸 部图像中的眼睛, 根据脸部图像所在坐标系与参考坐标系的关系, 将两个 检测要素转换到参考坐标系中 ,假定在 T2时刻第一检测要素到第二检测要 素的方向的值为脸部特征方向— 12, 如图 6所示。
204、电子设备比较 T1时刻用户面矢量方向的值("脸部特征方向— tl" ) 和 T2时刻用户面矢量方向的值( "脸部特征方向— 12,,), 计算从 T1时刻到 T2时刻用户面矢量方向旋转的角度 A。
续上述实例, 若顺时针方向为正向, 则角度 A为正值; 若逆时针方向 为正向, 则该角度 A为负值, 图 7示为求角度 A的过程示意图。
205、 电子设备控制播放画面矢量方向旋转角度 。
该步驟中电子设备控制播放画面矢量方向顺时针旋转角度 A, 则旋转 后的播放画面矢量的方向值为 "播放画面方向— t2" , 如图 8所示。
该步骤中电子设备控制播放画面矢量方向顺时针旋转角度 A相当于将 整个播放画面顺时针旋转角度 A, 使用户和播放画面的对应关系保持不变, 方便用户观看显示屏幕上的画面。 上述实施例中以两个时刻 ( T1和 T2 )进行示例性说明 , 后续电子设备 会将检测到的 T3时刻用户面矢量方向的值(假定为 "脸部特征方向— t3" ) 与 T2 时刻用户面矢量方向的值("脸部特征方向— t2" )进行比较, 计算从 T2时刻到 T3时刻用户面矢量方向的旋转角度 B,然后控制播放画面矢量方 向进行相应的旋转。
若在步驟 205 中电子设备使用摄像头检测不到用户的左眼或者右眼, 则提示用户调整姿势, 重新进行扫描, 获得用户面矢量方向的当前值, 根 据用户面矢量方向的当前值与用户面矢量方向的初始值( "脸部特征方向 J1" ), 确定用户面矢量旋转的角度值, 控制播放画面矢量旋转该角度值, 采用多种方式提示用户调整姿势, 比如可以采用语音通知的方式, 或者采 用在显示屏上展示提示信息以提示用户调整姿势。 具体的, 若电子设备使 用摄像头检测用户的眼睛, 当拍摄的用户的脸部图像中没有用户的眼睛, 则表示电子设备检测不到用户的眼睛。
本发明实施例 ¾据第二时刻的用户面矢量方向值与第一时刻的用户面 矢量方向值确定从第一时刻到第二时刻用户面矢量方向旋转的角度值, 进 而控制播放画面矢量方向旋转该角度值, 保证在用户头部转动时, 所播放 可在用户随意调整姿势的情况下, 都能保证用户正视播放画面, 提高用户 体验。 该技术方案可广泛应用于全球定位系统( Global Positioning System, GPS ), Map等导航产品中; 且在用户处于失重场景中, 播放的画面也根据 用户的头部转动而发生移动, 方便用户观看。 进一步, 本发明实施例的技 术方案可以使显示画面防抖动, 比如用户在乘坐飞机时, 用户前面座位的 靠背上内嵌一个 LCD播放器, 此时飞机遇上气流开始颠簸, 用户和 LCD也 会不停抖动, 由于 LCD播放的画面和用户的对应关系保持不变, 播放画面 相对于用户没有发生抖动, 方便用户观看。
如图 10所示, 本发明的又一实施例提供了一种画面控制方法, 包括如 下步驟:
301 , 检测到用户所在场景中的第一检测要素和第二检测要素, 确定用 户面矢量方向的当前值; 其中, 第一检测要素和第二检测要素位于场景中的用户身体上; 或者, 第一检测要素和第二检测要素位于场景中非用户身体的物体上, 比如位于 用户所在场景中的一本书上。
本发明实施例的各步驟可以由同一电子设备执行。 检测可以通过摄像 头等图像摄取元件进行 , 检测要素则可以通过图像识别技术检测出来。
这一步驟的具体实现可以参照前面的实施例, 此处不赘述。
302, 才艮据用户面矢量方向的当前值与用户面矢量方向的初始值, 确定 从所述用户面矢量方向的初始值到所述用户面矢量方向的当前值旋转的第 一角度值, 控制播放画面矢量方向旋转与所述第一角度值对应的第二角度 值, 所述播放画面矢量方向是播放画面中第一特征点到第二特征点的连线 方向。
这里, 用户面矢量方向的初始值, 可以是事先检测确定的, 也可以是 预先设置好的, 例如预先设置为水平方向。 第二角度值可以和第一角度值 相等, 也可以不相等。 例如, 当第一角度值的绝对值小于预设的旋转阈值 时, 对应的第二角度值为 0度, 而当第一角度值的绝对值大于预设的旋转阈 值且小于 90度时, 对应的第二角度值为 90度, 且第二角度值与第一角度值 同号。 这里旋转阈值可以根据需要设定, 例如为 45度或 30度等, 该阈值可 以事先预置在电子设备中, 也可以由用户自行设定。 事实上, 在许多情况 下, 例如看文本的时候, 第二角度值设置为 90度的整数倍是比较合适的。 以上描述中, 如本领域技术人员所知, 可以通过角度值的正负表示旋转的 方向, 例如以正值表示逆时针旋转, 以负值表示顺时针旋转。
本步驟的具体实现可以参考前面实施例的描述, 此处不再赘述。
本发明实施例才艮据用户面矢量方向的当前值与用户面矢量方向的初始 值确定用户面矢量方向旋转的角度值, 进而控制播放画面矢量方向旋转相 应的角度值, 方便用户观看画面, 可在用户随意调整姿势的情况下, 都能 保证用户正视播放画面, 提高用户体验。 该技术方案可广泛应用于全球定 位系统( Global Positioning System, GPS ), Map等导航产品中; 且在用户处 于失重场景中, 或者在平躺姿势下, 播放的画面也根据用户的头部转动而 发生转动, 方便用户观看。
参阅图 9, 本发明实施例提供一种电子设备, 包括:
检测单元 901 ,用于判断是否检测到用户所在场景中的第一检测元素和 第二检测元素, 当检测到用户所在场景中的第一检测元素和第二检测元素, 根据检测结果确定用户面矢量方向的值; 所述用户面矢量方向是第一检测 元素到第二检测元素的连线方向;
计算单元 902,用于根据检测单元 901在第一时刻确定的用户面矢量方 向的值和检测单元 901在第二时刻确定的用户面矢量方向的值, 确定从第 一时刻到第二时刻用户面矢量方向旋转的角度值;
控制单元 903 , 用于控制播放画面矢量方向旋转该角度值。
其中, 第一检测要素和第二检测要素位于用户所在场景中的用户身体 上; 或者, 第一检测要素和第二检测要素位于用户所在场景中的非用户身 体的物体上。
若第一检测要素和第二检测要素位于用户身体上, 则检测单元 901 ,还 用于在检测不到第一检测元素和 /或第二检测元素时, 提示姿势调整消息, 所述姿势调整消息用于提示用户调整姿势, 重新检测第一检测要素和第二 检测要素, 根据检测结果确定用户面矢量方向的值。
该电子设备还包括:
第一检测要素确定单元 904, 用于获取预置的检测要素标记,根据所述 检测要素标记, 确定所述检测单元待检测的要素为第一检测要素和第二检 测要素。
显示单元 905,用于展示所述第一检测要素确定单元 904确定的待检测 要素的信息; 或者, 语音播放单元 906, 用于播放通知消息, 所述通知消息 用于通知第一检测要素确定单元 904确定的待检测要素的信息。
或者, 该电子设备还包括第二检测要素确定单元, 用于接收用户指定 检测要素的指令, 根据该指令, 确定检测单元 901 待检测的要素为第一检 测要素和第二检测要素。
本发明实施例根据第二时刻的用户面矢量方向值与第一时刻的用户面 矢量方向值确定从第一时刻到第二时刻用户面矢量方向旋转的角度值, 进 而控制播放画面矢量方向旋转所述旋转角度值, 保证在用户头部转动时, 观看画面, 可在用户随意调整姿势的情况下, 都能保证用户正视播放画面, 提高用户体验。 该技术方案可广泛应用于 GPS, Map等导航产品中; 且在 用户处于失重场景中, 播放的画面也根据用户的头部转动而发生移动, 方 便用户观看。 进一步, 本发明实施例的技术方案可以使显示画面防抖动, 比如用户在乘坐飞机时, 用户前面座位的靠背上内嵌一个 LCD播放器, 此 时飞机遇上气流开始颠簸, 用户和 LCD也会不停抖动, 由于 LCD播放的 画面和用户的对应关系保持不变, 播放画面相对于用户没有发生抖动, 方 便用户观看。
本发明的另一实施例提供一种电子设备, 包括:
检测单元 901 ,用于检测到第一检测要素和第二检测要素,确定用户面 矢量方向的当前值;
计算单元 902,用于 居检测单元 901确定的用户面矢量方向的当前值 和用户面矢量方向的初始值, 确定从所述用户面矢量方向的初始值到所述 用户面矢量方向的当前值旋转的第一角度值;
控制单元 903 ,用于控制播放画面矢量方向旋转与所述第一角度值对应 的第二角度值。
其中, 第一检测要素和第二检测要素位于场景中的用户身体上; 或者, 第一检测要素和第二检测要素位于场景中非用户身体的物体上, 比如位于 用户所在场景中的一本书上。
本发明实施例的各步驟可以由同一电子设备执行。 检测可以通过摄像 头等图像摄取元件进行 , 检测要素则可以通过图像识别技术检测出来。
这里, 用户面矢量方向的初始值, 可以是事先检测确定的, 也可以是 预先设置好的, 例如预先设置为水平方向。 第二角度值可以和第一角度值 相等, 也可以不相等。 例如, 当第一角度值的绝对值小于预设的旋转阈值 时, 对应的第二角度值为 0度, 而当第一角度值的绝对值大于预设的旋转 阈值且小于 90度时, 对应的第二角度值为 90度, 且第二角度值与第一角 度值同号。 这里旋转阈值可以根据需要设定, 例如为 45度或 30度等, 该 阈值可以事先预置在电子设备中, 也可以由用户自行设定。 事实上, 在许 多情况下, 例如看文本的时候, 第二角度值设置为 90度的整数倍是比较合 适的。 以上描述中, 如本领域技术人员所知, 可以通过角度值的正负表示 旋转的方向, 例如以正值表示逆时针旋转, 以负值表示顺时针旋转。
以上各实施例中的电子设备可以是手机、 掌上游戏机、 平板电脑、 GPS 导航仪等手持电子设备。
本实施例的具体实现可以参考前面实施例的描述, 此处不再赘述。 本发明实施例 居用户面矢量方向的当前值与用户面矢量方向的初始 值确定用户面矢量方向旋转的角度值, 进而控制播放画面矢量方向旋转相 应的角度值, 方便用户观看画面, 可在用户随意调整姿势的情况下, 都能 保证用户正视播放画面, 提高用户体验。 该技术方案可广泛应用于全球定 位系统(Global Positioning System, GPS ), Map等导航产品中; 且在用户 处于失重场景中, 或者在平躺姿势下, 播放的画面也根据用户的头部转动 而发生转动, 方便用户观看。
驟是可以通过程序来指令相关的硬件完成, 所述的程序可以存储于一种计 算机可读存储介质中, 例如只读存储器、 快闪存储器、 磁盘或光盘等。
另外, 以上实施例中分别说明的各技术、 系统、 装置、 方法以及各实 施例中分别说明的技术特征可以进行组合, 从而形成不脱离本发明的精神 和原则之内的其他的模块, 方法, 装置, 系统及技术, 这些根据本发明实 施例的记载组合而成的模块, 方法, 装置, 系统及技术均在本发明的保护 范围之内。
以上对本发明实施例所提供的画面控制方法及电子设备进行了详细介 实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于 本领域的一般技术人员, 依据本发明的思想, 在具体实施方式及应用范围 上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。
+

Claims

权利要求
1、 一种画面控制方法, 其特征在于, 包括:
在第一时刻检测到用户所在场景中的第一检测要素和第二检测要素 , 确定用户面矢量方向的初始值, 其中, 所述用户面矢量方向是第一检测要 素到第二检测要素的连线方向;
在第二时刻检测到第一检测要素和第二检测要素 , 确定用户面矢量方 向的当前值;
根据用户面矢量方向的当前值与用户面矢量方向的初始值, 确定从第 一时刻到第二时刻用户面矢量方向旋转的角度值, 控制播放画面矢量方向 旋转所述角度值, 所述播放画面矢量方向是播放画面中第一特征点到第二 特征点的连线方向。
2、 根据权利要求 1所述的方法, 其检测在于,
所述第一检测要素和第二检测要素位于所述场景中的用户身体上; 或者,
所述第一检测要素和第二检测要素位于所述场景中非用户身体的物体 上。
3、 根据权利要求 2所述的方法, 其特征在于,
若所述第一检测要素和第二检测要素位于所述场景中的用户身体上, 当第二时刻没有检测到第一检测要素和 /或第二检测要素时, 提示姿势调整 消息, 所述姿势调整消息用于提示用户调整姿势, 重新检测第一检测要素 和第二检测要素, 确定用户面矢量方向的当前值, 居用户面矢量方向的 当前值与用户面矢量方向的初始值, 确定用户面矢量方向旋转的角度值, 控制播放画面矢量方向旋转所述角度值。
4、 根据权利要求 1所述的方法, 其检测在于,
在第一时刻检测用户所在场景中的第一检测要素和第二检测要素之 前, 该方法还包括:
获取预置的检测要素标记, 根据所述检测要素标记, 确定待检测要素 为第一检测要素和第二检测要素, 提示所述待检测要素的信息;
或者,
接收用户指定检测要素的指令, 根据所述指令, 确定待检测的要素为 第一检测要素和第二检测要素。
5、 一种电子设备, 其特征在于, 包括:
检测单元, 用于判断是否检测到用户所在场景中的第一检测元素和第 二检测元素, 当检测到用户所在场景中的第一检测元素和第二检测元素时, 根据检测结果确定用户面矢量方向的值; 所述用户面矢量方向是第一检测 元素到第二检测元素的连线方向;
计算单元, 用于根据检测单元在第一时刻确定的用户面矢量方向的值 和检测单元在第二时刻确定的用户面矢量方向的值, 确定从第一时刻到第 二时刻用户面矢量方向旋转的角度值;
控制单元, 用于控制播放画面矢量方向旋转所述角度值。
6、 根据权利要求 5所述的电子设备, 其特征在于,
所述第一检测要素和第二检测要素位于用户所在场景中的用户身体 上;
或者,
所述第一检测要素和第二检测要素位于用户所在场景中的非用户身体 的物体上。
7、 根据权利要求 6所述的电子设备, 其特征在于,
检测单元 , 还用于在检测不到第一检测元素和 /或第二检测元素时 , 提 示姿势调整消息, 所述姿势调整消息用于提示用户调整姿势, 重新检测第 一检测要素和第二检测要素 , 根据检测结果确定用户面矢量方向的值; 所述第一检测要素和第二检测要素位于用户身体上。
8、 根据权利要求 5所述的电子设备, 其特征在于, 还包括:
第一检测要素确定单元, 用于获取预置的检测要素标记, 根据所述检 测要素标记 , 确定所述检测单元待检测的要素为第一检测要素和第二检测 要素。
9、 根据权利要求 8所述的电子设备, 其特征在于, 还包括:
显示单元, 用于展示所述第一检测要素确定单元确定的待检测要素的 信息;
或者,
语音播放单元, 用于播放通知消息, 所述通知消息用于通知第一检测 要素确定单元确定的待检测要素的信息。
10、 根据权利要求 5所述的电子设备, 其特征在于, 还包括: 第二检测要素确定单元, 用于接收用户指定检测要素的指令, 根据所 述指令, 确定所述检测单元待检测的要素为第一检测要素和第二检测要素。
11、 一种画面控制方法, 其特征在于, 包括:
检测到用户所在场景中的第一检测要素和第二检测要素, 确定用户面 矢量方向的当前值;
根据用户面矢量方向的当前值与用户面矢量方向的初始值 , 确定从所 述用户面矢量方向的初始值到所述用户面矢量方向的当前值旋转的第一角 度值 , 控制播放画面矢量方向旋转与所述第一角度值对应的第二角度值 , 所述播放画面矢量方向是播放画面中第一特征点到第二特征点的连线方 向。
12、 如权利要求 11所述的方法, 其特征在于: 当所述第一角度值的绝 对值小于预设的旋转阈值时, 所述第二角度值为 0度。
13、 如权利要求 11或 12所述的方法, 其特征在于当所述第一角度值的 绝对值大于预设的旋转阔值且小于 90度时, 所述第二角度值的绝对值为 90 度, 且所述第二角度值与所述第一角度值同号。
14、 如权利要求 11所述的方法, 其特征在于:
若所述第一检测要素和第二检测要素位于所述场景中的用户身体上, 当没有检测到第一检测要素和 /或第二检测要素时, 提示姿势调整消息, 所 述姿势调整消息用于提示用户调整姿势, 重新检测第一检测要素和第二检 测要素, 确定用户面矢量方向的当前值。
15、 一种电子设备, 其特征在于, 包括:
检测单元, 用于检测到第一检测要素和第二检测要素, 确定用户面矢 量方向的当前值;
计算单元, 用于 居检测单元确定的用户面矢量方向的当前值和用户 面矢量方向的初始值, 确定从所述用户面矢量方向的初始值到所述用户面 矢量方向的当前值旋转的第一角度值;
控制单元, 用于控制播放画面矢量方向旋转与所述第一角度值对应的 第二角度值。
16、 根据权利要求 15所述的电子设备, 其特征在于,
检测单元, 还用于在检测不到第一检测元素和 /或第二检测元素时, 提 示姿势调整消息, 所述姿势调整消息用于提示用户调整姿势, 重新检测第 一检测要素和第二检测要素 , 根据检测结果确定用户面矢量方向的值; 所述第一检测要素和第二检测要素位于用户身体上。
17、 根据权利要求 15所述的电子设备, 其特征在于, 还包括: 第一检测要素确定单元, 用于获取预置的检测要素标记, 根据所述检 测要素标记, 确定所述检测单元待检测的要素为第一检测要素和第二检测 要素。
18、 根据权利要求 15所述的电子设备, 其特征在于, 还包括: 显示单元, 用于展示所述第一检测要素确定单元确定的待检测要素的 信息;
或者,
语音播放单元, 用于播放通知消息, 所述通知消息用于通知第一检测 要素确定单元确定的待检测要素的信息。
19、 根据权利要求 15所述的电子设备, 其特征在于, 还包括: 第二检测要素确定单元, 用于接收用户指定检测要素的指令, 根据所 述指令, 确定所述检测单元待检测的要素为第一检测要素和第二检测要素。
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