CN103105922A - Method and device for mobile terminal backlight control - Google Patents
Method and device for mobile terminal backlight control Download PDFInfo
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- CN103105922A CN103105922A CN2013100531025A CN201310053102A CN103105922A CN 103105922 A CN103105922 A CN 103105922A CN 2013100531025 A CN2013100531025 A CN 2013100531025A CN 201310053102 A CN201310053102 A CN 201310053102A CN 103105922 A CN103105922 A CN 103105922A
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Abstract
The invention discloses a method and a device for mobile terminal backlight control. The method includes the following step: S1, starting up a mobile terminal; S2, opening backlight of the mobile terminal and keeping the backlight in a normally-on state; S3, monitoring whether a touch event of a touch screen of the mobile terminal occurs, if the touch event occurs, return to the step S2; if the touch event does not occur, enter into the S4; S4, obtaining image information collected by the mobile terminal currently; S5, judging whether the image information collected by the mobile terminal current includes a face image or not, if the image information includes the face image, return to the step S2, if the image information does not include the face image, entering into the step S6; S6, obtaining image information which is collected by the mobile terminal in multiple moment of the preset time period, judging whether image information which is collected in the preset time period includes the face image or not; if the image information includes the face image, return to the step S2; and if the image information does not include the face image, close the backlight of the mobile terminal. The method can shorten backlight duration time as far as possible under the premise of meeting user demands, and improves user experience.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of backlight of mobile terminal control method and device.
Background technology
At present, the duration of keeping backlight of mobile terminal screen is generally the fixed value that the user arranges.For example, if the duration backlight of user's screen is set to 2 minutes, after user's operating mobile terminal, or after the passive event of mobile terminal (as incoming call, come note, ring quarter-bell etc.) triggers, the screen of mobile terminal will be kept backlight in 2 minutes; As the user, the duration backlight of screen is made as 1 minute, screen will be kept backlight in 1 minute.
But under many circumstances, it is not suitable especially adopting fixing duration backlight.For example, the user checks that telephone number operation may only need time several seconds, but the user arranges backlight hold time and long will cause the waste of mobile terminal electric weight like this.If the user is seeing news or microblogging in addition, what need this moment backlightly holds time longlyer, if the time backlight that the user arranges is shorter, will just screen not extinguished when the user also finishes watching information, the user must carry out extra unlocking operation, reenters application.These repeatedly loaded down with trivial details operation all will cause the user to experience reduction.
Summary of the invention
Fundamental purpose of the present invention is, thereby for cause the defective of waste and the reduction user experience of mobile terminal electric weight in prior art due to the fixing duration backlight of employing, provides a kind of backlight of mobile terminal control method and device.
The present invention constructs a kind of backlight of mobile terminal control method and device, and wherein method comprises the following steps:
S1) open a mobile terminal;
S2) open the backlight of this mobile terminal and with the normal bright state of maintenance backlight;
S3) monitor and whether have touch event to occur on the Touch Screen of this mobile terminal, if it is return to step S2; If not, enter step S4;
S4) obtain the current image information that gathers of this mobile terminal;
S5) judge whether the current image information that gathers of this mobile terminal comprises facial image, if it is returns to step S2, if otherwise enter step S6;
S6) obtain this mobile terminal image information of gathering respectively of a plurality of moment within a predetermined period of time, judge this within a predetermined period of time each image information that gathers respectively whether comprise facial image; If it is return to step S2; If not, close the backlight of this mobile terminal.
In the control method of above-mentioned backlight of mobile terminal, described step S5 comprises the following steps:
S50) pre-stored standard faces image in this mobile terminal, and the image similarity threshold value is set;
S51) extract unique point in the current image information that gathers of this mobile terminal;
S52) described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
S53) the current image information that gathers comprises facial image if described similarity greater than described threshold value, is judged this mobile terminal; If otherwise finish.
In the control method of above-mentioned backlight of mobile terminal, the described predetermined amount of time in described step S6 is the User Defined setting.
In the control method of above-mentioned backlight of mobile terminal, described step S6 is further comprising the steps of:
S61) pre-set this mobile terminal and gather the interval time of image information and total duration of this mobile terminal continuous acquisition image information;
S62) this mobile terminal begins timing;
S63) obtain the image information that each interval time, this mobile terminal collected;
S64) extract unique point in the image information that described each interval time, this mobile terminal collected;
S65) described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
S66) if greater than described threshold value, judging the image information that described each interval time in predetermined amount of time, this mobile terminal collected, described similarity comprises facial image; If otherwise enter step S67;
S67) judge that time that mobile terminal continues timing whether greater than total duration of described default this mobile terminal continuous acquisition image information, if it is finishes; If otherwise return to step S63.
A kind of backlight of mobile terminal control device comprises: microprocessor and the touch-screen that all is connected with microprocessor, storer and front-facing camera, whether wherein, described microprocessor is used for the Real-Time Monitoring touch-screen has touch event to occur, judge whether the image information of front-facing camera collection comprises facial image and the switch of controlling this backlight of mobile terminal; Described touch-screen is used for sending the touch event signal to microprocessor; Described storer is used for the storage standards facial image; Described front-facing camera is used for gathering present image information and the image information in interior a plurality of moment of predetermined amount of time of described mobile terminal.
In above-mentioned backlight of mobile terminal control device, described microprocessor is being used for carrying out to judge the image information that gathers operates below being used for carrying out when whether comprising the operation of people's face:
A., the image similarity threshold value is set;
B. extract the unique point in the current image information that gathers of this mobile terminal;
C. described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
If D. described similarity is greater than described threshold value, judge that the current image information that gathers of this mobile terminal comprises facial image; If otherwise finish.
In above-mentioned backlight of mobile terminal control device, described microprocessor also is used for operation below execution when whether the image information that is used for execution judgement collection comprises the operation of people's face:
E. pre-set this mobile terminal and gather the interval time of image information and total duration of this mobile terminal continuous acquisition image information;
F. this mobile terminal begins timing;
G. obtain the image information that each interval time, this mobile terminal collected;
H. extract the unique point in the image information that described each interval time, this mobile terminal collected;
I. described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
If J. described similarity is greater than described threshold value, judge that the image information that described each interval time in predetermined amount of time, this mobile terminal collected comprises facial image; If otherwise enter step K;
K. judge that time that mobile terminal continues timing whether greater than total duration of above-mentioned default this mobile terminal continuous acquisition image information, if it is finishes; If otherwise return to step G.
The beneficial effect of implementing a kind of backlight of mobile terminal control method of the present invention and device is: the present invention reaches the effect of intelligently controlling mobile terminal duration backlight by the acting in conjunction of front-facing camera, touch-screen, thereby the lasting time backlight can be shortened as far as possible under the prerequisite of meeting consumers' demand, and then the waste of minimizing mobile terminal electric weight, improve the user and experience.
Description of drawings
Below in conjunction with drawings and Examples, a kind of backlight of mobile terminal control method of the present invention and device are described further, in accompanying drawing:
Fig. 1 is the structured flowchart of a kind of backlight of mobile terminal control device provided by the invention;
Fig. 2 is a kind of backlight of mobile terminal control method principle of work schematic diagram provided by the invention;
Fig. 3 is the specific works flow process schematic diagram of step S5 in Fig. 2;
Fig. 4 is the specific works flow process schematic diagram of step S6 in Fig. 2.
Embodiment
Described in a kind of backlight of mobile terminal control method provided by the invention and device, mobile terminal can be the equipment such as smart mobile phone, panel computer, notebook computer.As shown in Figure 1, this backlight of mobile terminal control device comprises: microprocessor 1, the touch-screen 2 that is connected with microprocessor 1, storer 3, front-facing camera 4, wireless communication module 5.Microprocessor 1 is the CPU processor, be used for whether having on Real-Time Monitoring touch-screen 2 touch event to occur, process to judge by a series of data whether the image information that front-facing camera 4 gathers comprises facial image, also is used for controlling the switch of this backlight of mobile terminal.Touch-screen 2 is capacitance touch screen, electric resistance touch screen etc., is used for sending to microprocessor 1 signal of touch event, also can be used for showing the content of mobile terminal, also can be used as human-computer interaction interface, is used for to the mobile terminal input command etc.Storer 3 can be the internal storage that mobile terminal carries, and can be also the storage card installed etc., is used for the storage standards facial image, also can be used for storing the data of other user's needs.Front-facing camera 4 is used for obtaining the positive corresponding present image information of mobile terminal.Wireless communication module 5 is used for carrying out communication by cordless communication network and far-end server and is connected, the data of real-time update standard faces image.
A kind of mobile terminal provided by the invention is controlled the method for duration backlight, and the method comprises the following steps:
S1) open mobile terminal, enter the backlight of mobile terminal Optimizing Mode.
S2) respond the operation that this backlight of mobile terminal is opened, microprocessor 1 receives response instruction, opens backlightly, the backlight of mobile terminal is set to normal bright state, even the state that the screen of mobile terminal maintainings lights always.
S3) whether be useful on the touch event generation of this mobile terminal of touch control operation on Real-Time Monitoring touch-screen 2, if yes then enter step S2; If not, enter step S4.State to touch-screen 2 detects microprocessor 1 every 1-2 second, has or not touch event to occur on judgement touch-screen 2.If there is continuously touch event to occur on touch-screen 2, the electric field of touch-screen 2 changes, and signal is sent on microprocessor 1, judges that touch event occurs for it.At this moment, the instruction that microprocessor 1 is opened backlight of mobile terminal with transmission makes it open the backlight of mobile terminal to backlight control circuit.If microprocessor is every certain hour, as about 10 seconds, the electric field change signal on touch-screen 2 do not detected, judging does not have touch event to occur on this touch-screen 2, at this moment, may not use mobile terminal for the user, may be for the user is using also, but need not touch mobile terminal, microprocessor 1 will send instruction to front-facing camera 4, it is opened, the beginning pickup image.
S4) obtain the current image information that gathers of this mobile terminal.Microprocessor 1 sends the instruction of opening front-facing camera 4, and front-facing camera 4 receives instruction, opens and starts working.Front-facing camera 4 begins to catch its image information within the vision, carries out a series of signal conversion (this is prior art, repeats no more) through the elements in front-facing camera 4, at last with image transmission to microprocessor 1.
S5) judge whether the current image information that gathers of this mobile terminal comprises facial image, if yes then enter step S2, if otherwise enter step S6.This step specifically comprises: S50) pre-stored standard faces image in storer 3, and set an image similarity threshold value in microprocessor 1, be used for judging whether the image information of obtaining comprises facial image; S51) microprocessor 1 extract minutiae from the present image information that gets is as unique points such as the size of the image surface face profiles such as eye iris, the wing of nose, the corners of the mouth, position, distances; S52) microprocessor 1 is compared the characteristic point data of extracting and the data that are stored in storer 3 Plays facial images, according to comparison result, microprocessor 1 will calculate a unique point and standard faces Image similarity value, judge whether this similarity value that calculates reaches default threshold value; S53) if the similarity value is to reach described threshold value, microprocessor 1 can determine that the present image information that front-facing camera 4 obtains comprises facial image; If otherwise finish.If judgment result is that the present image information that front-facing camera 4 obtains comprises facial image, microprocessor 1 will send the instruction of opening backlight of mobile terminal, if judgment result is that the present image information that front-facing camera 4 obtains does not comprise facial image, enters step S6.
S6) obtain this mobile terminal image information that a plurality of moment gather respectively in a predetermined amount of time, judge whether this image information that a plurality of moment gather respectively in a predetermined amount of time comprises facial image; If yes then enter step S2, if not, close the backlight of this mobile terminal.In this step, be specially: be t1 the interval time that S61) pre-sets this mobile terminal collection image information, and it is that T. arranges front-facing camera 4 every image information of interval time t1 collection in microprocessor 1 that predetermined this mobile terminal gathers image information duration; Set that certain to keep the time period that front-facing camera 4 opens be T, as T=10 second, in these 10 seconds, every the t1 time, front-facing camera 4 will gather image information one time.S62) this mobile terminal begins timing t=0.Microprocessor 1 begins timing with clocking capability when front-facing camera 4 begins to obtain head image information, establish initial time t=0.S63) obtain the image information that each interval time, this mobile terminal collected, the per interval t1 of front-facing camera 4 gathers once current image information, and the current image information that will collect reports to microprocessor 1; S64) microprocessor 1 extracts the unique point in the present image information that collects; As unique points such as the size of the image surface face profiles such as eye iris, the wing of nose, the corners of the mouth, position, distances; S65) microprocessor 1 is compared the characteristic point data of extracting and the data that are stored in storer 3 Plays facial images, according to comparison result, the present image the characteristics of information that microprocessor 1 obtains according to front-facing camera 4 is counted and be it is calculated that out present image information and the standard faces Image similarity value that front-facing camera 4 obtains, and judges that whether this similarity value that calculates is greater than default threshold value; S66) if greater than described threshold value, judging the present image information that this mobile terminal collects, described similarity comprises facial image; If otherwise enter step S67; S67) whether t=t+t1 judges t greater than T, if it is finishes; If otherwise return to step S63.1 pair of timing time of microprocessor judges, if timing time is greater than default time period T, end operation; If also in default time period T, front-facing camera 4 can continue to gather the image breath in next interval time timing time, returns to aforesaid operations.If judged result comprises facial image, microprocessor 1 send open backlight of mobile terminal instruction to backlight control circuit, open the backlight of mobile terminal.If judged result does not comprise facial image, microprocessor 1 sends the instruction of cutting out front-facing camera 4, backlight of mobile terminal, and front-facing camera 4, backlight of mobile terminal control circuit are carried out corresponding instruction, close the backlight of front-facing camera 4 and mobile terminal.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of claims of the present invention.
Claims (7)
1. a backlight of mobile terminal control method, is characterized in that, comprises the following steps:
S1) open a mobile terminal;
S2) open the backlight of this mobile terminal and with the normal bright state of maintenance backlight;
S3) monitor and whether have touch event to occur on the Touch Screen of this mobile terminal, if it is return to step S2; If not, enter step S4;
S4) obtain the current image information that gathers of this mobile terminal;
S5) judge whether the current image information that gathers of this mobile terminal comprises facial image, if it is returns to step S2, if otherwise enter step S6;
S6) obtain this mobile terminal image information of gathering respectively of a plurality of moment within a predetermined period of time, judge this within a predetermined period of time each image information that gathers respectively whether comprise facial image; If it is return to step S2; If not, close the backlight of this mobile terminal.
2. the control method of backlight of mobile terminal according to claim 1, is characterized in that, described step S5 comprises the following steps:
S50) pre-stored standard faces image in this mobile terminal, and the image similarity threshold value is set;
S51) extract unique point in the current image information that gathers of this mobile terminal;
S52) described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
S53) the current image information that gathers comprises facial image if described similarity greater than described threshold value, is judged this mobile terminal; If otherwise finish.
3. the control method of backlight of mobile terminal according to claim 1, is characterized in that, the described predetermined amount of time in described step S6 is the User Defined setting.
4. the control method of backlight of mobile terminal according to claim 3, is characterized in that, described step S6 is further comprising the steps of:
S61) pre-set this mobile terminal and gather the interval time of image information and total duration of this mobile terminal continuous acquisition image information;
S62) this mobile terminal begins timing;
S63) obtain the image information that each interval time, this mobile terminal collected;
S64) extract unique point in the image information that described each interval time, this mobile terminal collected;
S65) described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
S66) if greater than described threshold value, judging the image information that described each interval time in predetermined amount of time, this mobile terminal collected, described similarity comprises facial image; If otherwise enter step S67;
S67) judge that time that mobile terminal continues timing whether greater than total duration of described default this mobile terminal continuous acquisition image information, if it is finishes; If otherwise return to step S63.
5. backlight of mobile terminal control device, it is characterized in that, this device comprises: microprocessor (1) and the touch-screen (2) that all is connected with microprocessor (1), storer (3) and front-facing camera (4), whether wherein, described microprocessor (1) is used for Real-Time Monitoring touch-screen (2) has touch event to occur, judge whether the image information that front-facing camera (4) gathers comprises facial image and the switch of controlling this backlight of mobile terminal; Described touch-screen (2) is used for sending the touch event signal to microprocessor (1); Described storer (3) is used for the storage standards facial image; Described front-facing camera (4) is used for gathering present image information and the image information in interior a plurality of moment of predetermined amount of time of described mobile terminal.
6. backlight of mobile terminal control device according to claim 5, is characterized in that, described microprocessor (1) is being used for carrying out to judge the image information that gathers operates below being used for carrying out when whether comprising the facial image operation:
A., the image similarity threshold value is set;
B. extract the unique point in the current image information that gathers of this mobile terminal;
C. described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
If D. described similarity is greater than described threshold value, judge that the current image information that gathers of this mobile terminal comprises facial image; If otherwise finish.
7. backlight of mobile terminal control device according to claim 6, is characterized in that, described microprocessor (1) also is used for operation below execution when whether the image information that is used for execution judgement collection comprises the facial image operation:
E. pre-set this mobile terminal and gather the interval time of image information and total duration of this mobile terminal continuous acquisition image information;
F. this mobile terminal begins timing;
G. obtain the image information that each interval time, this mobile terminal collected;
H. extract the unique point in the image information that described each interval time, this mobile terminal collected;
I. described unique point and described standard faces image are compared, judge that whether described unique point and described standard faces Image similarity are greater than described threshold value;
If J. described similarity is greater than described threshold value, judge that the image information that described each interval time in predetermined amount of time, this mobile terminal collected comprises facial image; If otherwise enter step K;
K. judge that time that mobile terminal continues timing whether greater than total duration of described default this mobile terminal continuous acquisition image information, if it is finishes; If otherwise return to step G.
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| CN2013100531025A CN103105922A (en) | 2013-02-19 | 2013-02-19 | Method and device for mobile terminal backlight control |
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| CN2013100531025A CN103105922A (en) | 2013-02-19 | 2013-02-19 | Method and device for mobile terminal backlight control |
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| CN103458111A (en) * | 2013-08-17 | 2013-12-18 | 广东欧珀移动通信有限公司 | Mobile phone intelligent sleeping method |
| CN103995594A (en) * | 2014-05-26 | 2014-08-20 | 董顺杰 | Handheld device touch screen and backlight shutdown method |
| CN104679491A (en) * | 2013-11-29 | 2015-06-03 | 上海斐讯数据通信技术有限公司 | Method and electronic device for controlling electronic device use time for user |
| CN105204728A (en) * | 2015-08-26 | 2015-12-30 | 广西小草信息产业有限责任公司 | Screen extinguishing control method and system |
| CN105807888A (en) * | 2014-12-31 | 2016-07-27 | 联想(北京)有限公司 | Electronic equipment and information processing method |
| CN106022048A (en) * | 2016-05-24 | 2016-10-12 | 广东欧珀移动通信有限公司 | Screen unlocking method for electronic terminal, image acquisition method and device |
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Application publication date: 20130515 |