CN103941985A - Method and device used for switching screen modes - Google Patents

Method and device used for switching screen modes Download PDF

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Publication number
CN103941985A
CN103941985A CN201410131104.6A CN201410131104A CN103941985A CN 103941985 A CN103941985 A CN 103941985A CN 201410131104 A CN201410131104 A CN 201410131104A CN 103941985 A CN103941985 A CN 103941985A
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CN
China
Prior art keywords
screen
user
image
mobile terminal
datum line
Prior art date
Application number
CN201410131104.6A
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Chinese (zh)
Inventor
朱振广
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百度在线网络技术(北京)有限公司
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Priority to CN201410131104.6A priority Critical patent/CN103941985A/en
Publication of CN103941985A publication Critical patent/CN103941985A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; 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
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • GPHYSICS
    • G06COMPUTING; CALCULATING; 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING; 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
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object or an image, setting a parameter value or selecting a range

Abstract

The invention provides a method and device used for switching screen modes. The method includes the steps that if it is determined the screen mode of a mobile terminal needs to be switched by a gravity sensor of the mobile terminal, an image of the face of a user is acquired by starting a front camera; the rotation relation between the image of the face of the user and a screen is calculated; if the rotation relation meets a preset condition, the screen mode of the mobile terminal is switched. According to the method and device, the screen of the mobile terminal can be accurately switched to the screen mode needed by the user, user experience is improved, and because only existing hardware devices of the mobile terminal are used, cost is effectively reduced.

Description

The method and apparatus switching for screen pattern

Technical field

The present invention relates to a kind of screen control technology of mobile terminal, specifically, relate to a kind of method and apparatus of switching of the screen pattern of controlling mobile terminal.

Background technology

Along with developing rapidly of mobile terminal (such as smart mobile phone, panel computer etc.) technology, mobile terminal has become the necessity in people's daily life.For user-friendly, most of mobile terminals all have controls the horizontal screen of its screen and the function of the switching between perpendicular screen.

At present, the method that the horizontal/vertical screen of control mobile terminal switches comprises: (1) manually controls the switching of horizontal/vertical screen; (2) horizontal/vertical screen based on gravity sensing technology switches; (3) the horizontal/vertical screen handoff functionality of Portable naked eye 3 D terminal.

The method of switching for manual control horizontal/vertical screen, each display mode that all needs user manually to remove operation change screen, not intelligent also inconvenient; The method of switching for the horizontal/vertical screen based on gravity sensing technology, when user's recumbency or while using mobile terminal obliquely at a certain angle, according to gravity sensing result, be switched to horizontal screen, but in fact human eye watches the mode of screen to remain perpendicular screen, so just produce serious switching error, to user, caused inconvenience; For the method for the horizontal/vertical screen handoff functionality of Portable naked eye 3 D terminal, need on existing mobile terminal, add extras and realize, cost is higher.

Therefore, need a kind of screen for mobile terminal easily, accuracy horizontal/vertical screen handoff technique high, that cost is low.

Summary of the invention

The object of the invention is at least overcome above-mentioned shortcoming, and following advantage is at least provided.

An aspect of of the present present invention is to provide a kind of screen to mobile terminal to carry out the method and apparatus that horizontal/vertical screen switches, described method and apparatus judges whether to carry out on the basis of horizontal/vertical screen switching in the change of using gravity direction, user's face image of taking according to the front-facing camera at mobile terminal and the rotation relationship between screen, finally judging whether to carry out horizontal/vertical screen switches, thereby when needs are used the function according to scene automatic switchover horizontal/vertical screen, can exactly the screen of mobile terminal be carried out and be switched to the screen pattern that user needs.

Another aspect of the present invention is to provide a kind of screen to mobile terminal to carry out the method and apparatus that horizontal/vertical screen switches, described method and apparatus only needs to carry out auxiliary screen handoff functionality with the gravity sensor of existing mobile terminal common configuration and camera, and without increasing extra hardware device.

According to an aspect of the present invention, a kind of method of switching for screen pattern is provided, described method comprises: if the gravity sensor of mobile terminal is determined described mobile terminal, need to carry out screen pattern switching, by opening front-facing camera, obtain user's face image; Calculate described user's face image and the rotation relationship between screen; If it is pre-conditioned that described rotation relationship meets, described mobile terminal is carried out to screen pattern switching.

The described user's of described calculating face image and the step of the rotation relationship between screen can specifically comprise: in described user's face image, identify benchmark element; According to benchmark element, obtain the datum line of described user's face image; Calculate described user's the datum line of face image and the angle between the datum line of screen.

Described benchmark element can comprise a kind of in following element: eyes, glasses, nose, face, eyebrow, ear.

The datum line of described screen can be the straight line parallel with the upper sideline of screen frame under the screen pattern of place or lower sideline or can be pre-arranged into place screen pattern under the upper sideline of screen frame or the straight line that lower sideline forms predetermined angular.

Describedly pre-conditionedly comprise that described angle exceeds preset range.

According to a further aspect in the invention, a kind of device switching for screen pattern is provided, described device comprises: image acquisition unit, if the gravity sensor of mobile terminal is determined described mobile terminal and need to be carried out screen pattern switching, by opening front-facing camera, obtain user's face image; Rotation computing unit, calculates described user's face image and the rotation relationship between screen; Screens switch unit, pre-conditioned if described rotation relationship meets, described mobile terminal is carried out to screen pattern switching.

Rotation computing unit can identify benchmark element in described user's face image; According to benchmark element, obtain the datum line of described user's face image; Calculate described user's the datum line of face image and the angle between the datum line of screen.

Described benchmark element can comprise a kind of in following element: eyes, glasses, nose, face, eyebrow, ear.

The datum line of described screen can be the straight line parallel with the upper sideline of screen frame under the screen pattern of place or lower sideline or can be pre-arranged into place screen pattern under the upper sideline of screen frame or the straight line that lower sideline forms predetermined angular.

Describedly pre-conditionedly comprise that described angle exceeds preset range.

According to the method and apparatus switching for screen pattern of the present invention, can exactly the screen of mobile terminal be carried out and be switched to the screen pattern that user needs on the one hand, be user-friendly to, improving user experiences, can only use the existing hardware device of mobile terminal on the other hand, thereby effectively save cost.

Accompanying drawing explanation

In conjunction with the drawings, from the following describes of embodiment, the present invention these and/or other side and advantage will become clear, and are easier to understand, wherein:

Fig. 1 is the process flow diagram illustrating according to the method for switching for screen pattern of exemplary embodiment of the present invention;

Fig. 2 a to Fig. 3 c is the diagram illustrating according to the example of the datum line of the screen of exemplary embodiment of the present invention;

Fig. 4 a to Fig. 5 b is the diagram illustrating according to another example of the datum line of the screen of exemplary embodiment of the present invention;

Fig. 6 a to Fig. 6 c is the diagram illustrating according to the example of the calculating angle of exemplary embodiment of the present invention;

Fig. 7 is the structured flowchart illustrating according to the device switching for screen pattern of exemplary embodiment of the present invention.

Embodiment

Provide with reference to the following description of accompanying drawing to help the complete understanding to the embodiments of the invention that limited by claim and equivalent thereof.Comprise that various specific detail are help to understand, but that these details are only considered to be is exemplary.Therefore, those of ordinary skill in the art will recognize without departing from the scope and spirit of the present invention, can make various changes and modifications embodiment described herein.In addition, for clarity and brevity, omit the description to known function and structure.

Fig. 1 is the process flow diagram illustrating according to the method for switching for screen pattern of exemplary embodiment of the present invention.With reference to Fig. 1, if determining mobile terminal, the gravity sensor of mobile terminal need to carry out screen pattern switching, 101, can obtain by opening front-facing camera user's face image.Here, the gravity sensor in mobile terminal can be the existing mobile terminal gravity sensor of configuration conventionally, and front-facing camera can be the existing mobile terminal camera of configuration conventionally.

According to exemplary embodiment of the present invention, the gravity sensor of mobile terminal can be according to the gravity direction of existing gravity sensing technology sensing mobile terminal, and determines according to the gravity direction sensing whether mobile terminal needs to carry out screen pattern switching.Here, screen pattern can comprise horizontal screen pattern and perpendicular screen pattern.If the gravity sensor of mobile terminal determines mobile terminal and need to carry out screen pattern switching, this method is obtained user's face image by opening front-facing camera.

102, can calculate user's face image and the rotation relationship between screen.

According to exemplary embodiment of the present invention, first, described method can identify benchmark element in user's face image.Here, benchmark element can comprise a kind of in following element: eyes, glasses, nose, face, eyebrow, ear etc.

Subsequently, described method can obtain according to benchmark element the datum line of user's face image.The eyes of take below in user's face image for convenience of description, illustrate the method for the datum line of the face image that obtains user as example.

Specifically, can be by utilizing eyes that image recognition technology the identifies user position in user's face image, (for example obtain the centre coordinate point of eyes, left eye centre coordinate point A(x1, y1), right eye centre coordinate point B(x2, y2)), and form straight line L by the centre coordinate point of eyes aB, obtain the straight line that connects eyes, and the datum line using the straight line of the connection eyes that obtain as user's face image.Will be understood by those skilled in the art that, can also, according to similar method, utilize other benchmark element (for example, glasses, nose, face, eyebrow, ear etc.) to obtain the datum line of user's face image.

Subsequently, described method can be calculated user's the datum line of face image and the angle between the datum line of screen.Below, with reference to Fig. 2 a to Fig. 5 b, describe according to the example of the datum line of the screen of exemplary embodiment of the present invention.

According to exemplary embodiment of the present invention, it is the straight line parallel with the upper sideline of screen frame under the screen pattern of place or lower sideline that the datum line of screen can be defaulted as.For example, as shown in Fig. 2 a to Fig. 3 c, Fig. 2 a to Fig. 3 c is the diagram illustrating according to the example of the datum line of the screen of exemplary embodiment of the present invention.If place screen pattern is perpendicular screen pattern, as Fig. 2 a, shown in Fig. 2 b and Fig. 2 c, datum line L basecan be defaulted as is the straight line parallel with the upper sideline of screen frame under perpendicular screen pattern or lower sideline.If place screen pattern is horizontal screen pattern, as Fig. 3 a, Fig. 3 b and Fig. 3 c, datum line L basecan be defaulted as is the straight line parallel with the upper sideline of screen frame under horizontal screen pattern or lower sideline.

According to another exemplary embodiment of the present invention, the datum line of described screen can be pre-arranged into place screen pattern under the upper sideline of screen frame or the lower sideline straight line that forms predetermined angular.Here, user can consider the factors such as architectural characteristic of use habit or mobile terminal, in advance the datum line of screen be set to place screen pattern under the upper sideline of screen frame or lower sideline form predetermined angular (for example ,+a degree or-a degree, a is positive number) straight line.Here, the upper sideline of screen frame or being rotated counterclockwise direction in of lower sideline of the datum line of "+" expression screen under the screen pattern of place, "-" represents on the upper sideline of screen frame or the dextrorotation veer of lower sideline of datum line under the screen pattern of place.

For example, as shown in Fig. 4 a to Fig. 5 b, Fig. 4 a to Fig. 5 b is the diagram illustrating according to another example of the datum line of the screen of exemplary embodiment of the present invention.In Fig. 4 a and Fig. 4 b, datum line L basebe pre-arranged become+a of upper sideline or the lower sideline degree for the screen frame with under current screen pattern.In Fig. 5 a and Fig. 5 b, datum line L basebe pre-arranged become-a of upper sideline or the lower sideline degree for the screen frame with under current screen pattern.

Those skilled in the art will readily understand, the setting of the datum line of screen is not limited to aforesaid way, and the datum line of screen can also be set with any other available means.

Referring back to Fig. 1, the calculating user's of this method the datum line of face image and the concrete steps of the angle between the datum line of screen can comprise: by when keeping user's the direction of datum line of face image and the direction of the datum line of screen constant, together with being moved to, the datum line of the datum line of user's face image and screen to form angle, calculates user's the datum line of face image and the angle between the datum line of screen.Here, described angle can be user's the datum line of face image and the acute angle angle between the datum line of screen.

For example, as shown in Fig. 6 a to Fig. 6 c, Fig. 6 a to Fig. 6 c is the diagram illustrating according to the example of the calculating angle of exemplary embodiment of the present invention.In Fig. 6 a, for example, according to benchmark element (, user's eyes), obtain datum line (the straight line L that for example, connects eyes of user's face image aB), in Fig. 6 b, obtain the datum line L of screen base, in Fig. 6 c, keep the datum line L of user's face image aBdatum line L with screen basedirection constant, and by L aBand L basemove to together, form angle theta, this angle theta is user's the datum line of face image and the angle between the datum line of screen.Also those skilled in the art will appreciate that can by other can with mode calculate user's the datum line of face image and the angle between the datum line of screen.

Referring back to Fig. 1, pre-conditioned if the user's who calculates face image and the rotation relationship between screen meet, 103, can carry out screen pattern switching to mobile terminal.

According to exemplary embodiment of the present invention, if the angle between the datum line of the user's who calculates face image and the datum line of screen exceeds preset range, can carry out screen pattern switching to mobile terminal.Specifically, after calculating user's the datum line of face image and the angle between the datum line of screen, described angle and preset range are compared.If described angle falls in preset range, can keep the current screen pattern of mobile terminal, that is, the current screen of mobile terminal is not carried out to screen pattern switching.If described angle exceeds preset range, can carry out screen pattern switching to the current screen pattern of mobile terminal.Here, user can be rule of thumb or user habit set in advance preset range.For example, preset range can be preferably set to 0 degree to 50 degree.

Fig. 7 is the structured flowchart illustrating according to the device switching for screen pattern of exemplary embodiment of the present invention.

With reference to Fig. 7, according to the device 700 switching for screen pattern of exemplary embodiment of the present invention, can comprise image acquisition unit 701, rotation computing unit 702 and screens switch unit 703.

Specifically, if the gravity sensor of mobile terminal is determined mobile terminal, need to carry out screen pattern switching, image acquisition unit 701 can obtain by opening front-facing camera user's face image.Here, the gravity sensor in mobile terminal can be the existing mobile terminal gravity sensor of configuration conventionally, and front-facing camera can be the existing mobile terminal camera of configuration conventionally.

According to exemplary embodiment of the present invention, the gravity sensor of mobile terminal can be according to the gravity direction of existing gravity sensing technology sensing mobile terminal, and determines according to the gravity direction sensing whether mobile terminal needs to carry out screen pattern switching.Here, screen pattern can comprise horizontal screen pattern and perpendicular screen pattern.If the gravity sensor of mobile terminal determines mobile terminal and need to carry out screen pattern switching, image acquisition unit 701 can obtain by opening front-facing camera user's face image.

Rotation computing unit 702 can calculate the user's who is obtained by image acquisition unit 701 face image and the rotation relationship between screen.

According to exemplary embodiment of the present invention, first, rotation computing unit 702 can identify benchmark element in the user's who is obtained by image acquisition unit 701 face image.Here, benchmark element can comprise a kind of in following element: eyes, glasses, nose, face, eyebrow, ear etc.

Subsequently, rotation computing unit 702 can obtain according to benchmark element the datum line of user's face image.The eyes of take below in user's face image for convenience of description, illustrate the method for the datum line of the face image that obtains user as example.Specifically, can be by utilizing eyes that image recognition technology the identifies user position in user's face image, (for example obtain the centre coordinate point of eyes, left eye centre coordinate point A(x1, y1), right eye centre coordinate point B(x2, y2)), and form straight line L by the centre coordinate point of eyes aB, obtain the straight line that connects eyes, and the datum line using the straight line of the connection eyes that obtain as user's face image.Will be understood by those skilled in the art that, can also, according to similar method, utilize other benchmark element (for example, glasses, nose, face, eyebrow, ear etc.) to obtain the datum line of user's face image.

Subsequently, rotation computing unit 702 can calculate user's the datum line of face image and the angle between the datum line of screen.Specifically, rotation computing unit 702 can be by when keeping user's the direction of datum line of face image and the direction of the datum line of screen constant, together with being moved to, the datum line of the datum line of user's face image and screen to form angle, calculates user's the datum line of face image and the angle between the datum line of screen.Here, described angle can be user's the datum line of face image and the acute angle angle between the datum line of screen.

According to exemplary embodiment of the present invention, it is the straight line parallel with the upper sideline of screen frame under the screen pattern of place or lower sideline that the datum line of screen can be defaulted as.According to another exemplary embodiment of the present invention, the datum line of described screen can be pre-arranged into place screen pattern under the upper sideline of screen frame or the lower sideline straight line that forms predetermined angular.Here, user can consider the factors such as architectural characteristic of use habit or mobile terminal, in advance the datum line of screen be set to place screen pattern under the upper sideline of screen frame or lower sideline form predetermined angular (for example ,+a degree or-a degree, a is positive number) straight line.Here, the upper sideline of screen frame or being rotated counterclockwise direction in of lower sideline of the datum line of "+" expression screen under the screen pattern of place, "-" represents on the upper sideline of screen frame or the dextrorotation veer of lower sideline of datum line under the screen pattern of place.Those skilled in the art will readily understand, the setting of the datum line of screen is not limited to aforesaid way, and the datum line of screen can also be set with any other available means.

After rotation computing unit 702 calculates user's face image and the rotation relationship between screen, if it is pre-conditioned that the user's who is calculated by rotation computing unit 702 face image and the rotation relationship between screen meet, screens switch unit 703 can carry out screen pattern switching to mobile terminal.

According to exemplary embodiment of the present invention, if the user's who is calculated by rotation computing unit 702 the datum line of face image and the angle between the datum line of screen exceed preset range, screens switch unit 503 can carry out screen pattern switching to mobile terminal.Specifically, after calculating user's the datum line of face image and the angle between the datum line of screen by rotation computing unit 702, described angle and preset range are compared.If described angle falls in preset range, screens switch unit 703 can keep the current screen pattern of mobile terminal,, the current screen of mobile terminal is not carried out to screen pattern switching that is.If described angle exceeds preset range, screens switch unit 703 can carry out screen pattern switching to the current screen pattern of mobile terminal.Here, user can be rule of thumb or user habit set in advance preset range.For example, preset range can be preferably set to 0 degree to 50 degree.

The invention provides a kind of method and apparatus switching for screen pattern, described method and apparatus judges whether to carry out on the basis of screen pattern switching in the change of using gravity direction, user's face image of taking according to the front-facing camera at mobile terminal and the rotation relationship between screen, finally judge whether to carry out screen pattern is switched, thereby when needs are used the function according to scene automatic switchover horizontal/vertical screen, can exactly the screen pattern of mobile terminal be switched to the screen pattern that user needs, be user-friendly to, improve user and experience.In addition, described method and apparatus only needs to use gravity sensor and the camera of existing mobile terminal common configuration, and without increasing extra hardware device, therefore can in toggle screen modes, effectively save cost exactly.

Can carry out according to said method of the present invention according to computer program instructions.Because these programmed instruction can be included in computing machine, application specific processor or able to programme or specialized hardware, the instruction of therefore carrying out therein can be conducive to the execution of above-mentioned function.As understood by those skilled in the art, computing machine, processor or programmable hardware comprise the memory device that can store or receive software or computer code, and described software or computer code are realized the method for describing in the present invention when by computing machine, processor or hardware access and execution.

Although the present invention is shown and description with reference to its exemplary embodiment, but it should be appreciated by those skilled in the art, in the situation that do not depart from the spirit and scope of the present invention that limited by claim and equivalent thereof, can carry out various changes to its form and details.

Claims (10)

1. a method of switching for screen pattern, described method comprises:
If the gravity sensor of mobile terminal is determined described mobile terminal and need to be carried out screen pattern switching, by opening front-facing camera, obtain user's face image;
Calculate described user's face image and the rotation relationship between screen;
If it is pre-conditioned that described rotation relationship meets, described mobile terminal is carried out to screen pattern switching.
2. the method for claim 1, is characterized in that, the described user's of described calculating face image and the step of the rotation relationship between screen, specifically comprise:
In described user's face image, identify benchmark element;
According to benchmark element, obtain the datum line of described user's face image;
Calculate described user's the datum line of face image and the angle between the datum line of screen.
3. method as claimed in claim 2, is characterized in that, described benchmark element comprises a kind of in following element: eyes, glasses, nose, face, eyebrow, ear.
4. method as claimed in claim 2, it is characterized in that, the datum line of described screen be the straight line parallel with the upper sideline of screen frame under the screen pattern of place or lower sideline or be pre-arranged into place screen pattern under the upper sideline of screen frame or the straight line that lower sideline forms predetermined angular.
5. the method as described in any one in claim 2 to 4, is characterized in that, described pre-conditioned comprising: described angle exceeds preset range.
6. the device switching for screen pattern, described device comprises:
Image acquisition unit, need to carry out screen pattern switching if the gravity sensor of mobile terminal is determined described mobile terminal, by opening front-facing camera, obtains user's face image;
Rotation computing unit, calculates described user's face image and the rotation relationship between screen;
Screens switch unit, pre-conditioned if described rotation relationship meets, described mobile terminal is carried out to screen pattern switching.
7. device as claimed in claim 6, is characterized in that, rotation computing unit identifies benchmark element in described user's face image; According to benchmark element, obtain the datum line of described user's face image; Calculate described user's the datum line of face image and the angle between the datum line of screen.
8. device as claimed in claim 6, is characterized in that, described benchmark element comprises a kind of in following element: eyes, glasses, nose, face, eyebrow, ear.
9. device as claimed in claim 6, it is characterized in that, the datum line of described screen be the straight line parallel with the upper sideline of screen frame under the screen pattern of place or lower sideline or be pre-arranged into place screen pattern under the upper sideline of screen frame or the straight line that lower sideline forms predetermined angular.
10. the device as described in any one in claim 6 to 9, is characterized in that, described pre-conditioned comprising: described angle exceeds preset range.
CN201410131104.6A 2014-04-02 2014-04-02 Method and device used for switching screen modes CN103941985A (en)

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