CN102055844A - Method for realizing camera shutter function by means of gesture recognition and - Google Patents
Method for realizing camera shutter function by means of gesture recognition and Download PDFInfo
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- CN102055844A CN102055844A CN2010105442147A CN201010544214A CN102055844A CN 102055844 A CN102055844 A CN 102055844A CN 2010105442147 A CN2010105442147 A CN 2010105442147A CN 201010544214 A CN201010544214 A CN 201010544214A CN 102055844 A CN102055844 A CN 102055844A
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- H—ELECTRICITY
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Abstract
The invention relates to the field of mobile terminals, and discloses a method for realizing a camera shutter function by means of gesture recognition and a mobile phone. In the invention, when a camera function is started, an infrared inductive transducer (proximity transducer) is used for recognizing fixed gestures, simulating a camera shutter and controlling a camera to realize a function of focusing a to take pictures and a function of focusing a to return to preview for a camera; and the mobile phone with the camera has the new functions of focusing a to take pictures and focusing a to return to preview, thus providing convenience for users.
Description
Technical field
The present invention relates to field of mobile terminals, in particular a kind of method and mobile device of realizing the camera shutter function by gesture identification.
Background technology
The camera function of mobile phone from strength to strength, press on towards the card digital camera on the market, the mobile phone cam pixel has been up to 1,200 ten thousand pixels on the market now, and the 5000000 pixel supports shooting mobile phone of focusing have automatically just like become the market mainstream, even might become the standard configuration of street machine.
Yet because mobile phones design spatial limitation and product reliability requirement, most of mobile phone is can not digital camera the same, be equipped with convenient and practical camera shutter, the mobile phone of prior art band camera does not have the function of " focusing à takes pictures ", " focusing à turns back to preview ".
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, above-mentioned defective at prior art, a kind of method and mobile device of realizing the camera shutter function by gesture identification is provided, it makes the mobile phone of band camera increase the new function of " focusing à takes pictures ", " focusing à turns back to preview ", provides users with the convenient.
The technical scheme that technical solution problem of the present invention is adopted is as follows:
A kind of method by gesture identification realization camera shutter function wherein, comprises step:
A, open camera function, be provided with that device control infrared LED and drive circuit send infrared light by central authorities everywhere;
B, setting receive described infrared light by the reflective infrared light signal of different gesture reflected back varying strengths by the infrared induction transducer, and the digital signal that this reflective infrared light signal is converted into varying strength sends to described central processing unit;
C, described central processing unit receive the digital signal of described varying strength from the infrared induction transducer, and produce control signal corresponding according to the digital signal of this varying strength, realize corresponding shutter function to control described camera.
Described method by gesture identification realization camera shutter function, wherein, described step C further comprises:
C1, under preview mode, when in very first time section T1, when the digital signal that described central processing unit receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realize focus function;
C2, wait second time T 2, described camera focusing is finished.
Described method by gesture identification realization camera shutter function, wherein, described step C also comprises:
C30, finish when the focusing of described camera, in the 3rd time period T3, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and realize camera function.
Described method by gesture identification realization camera shutter function, wherein, described the 3rd time period T3 is less than 1/2nd of very first time section T1.
Described method by gesture identification realization camera shutter function, wherein, described step C also comprises:
C31, finish when the focusing of described camera, in the 4th time period T4, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and return preview mode.
Described method by gesture identification realization camera shutter function, wherein, described the 4th time period T4 equals very first time section T1.
A kind of mobile device wherein, comprises infrared LED and drive circuit, infrared induction transducer, processor and camera;
Described infrared LED and drive circuit are connected with described central processing unit, are used for sending infrared light according to the control of device everywhere of described central authorities;
Described infrared induction transducer is connected with described central processing unit, be used to receive described infrared light by the reflective infrared light signal of different gesture reflected back varying strengths, and the digital signal that this reflective infrared light signal is converted into varying strength sends to described central processing unit;
Described central processing unit is used for receiving from described infrared induction transducer the digital signal of described varying strength, and produces control signal corresponding according to the digital signal of this varying strength, realizes corresponding shutter function to control described camera.
Described mobile device, wherein, infrared LED in described infrared LED and the drive circuit and described infrared induction transducer are arranged on same plane, and are provided with one every tabula rasa between described infrared LED and described infrared induction transducer;
Described central processing unit is connected with described infrared LED and drive circuit by IO mouth control switch; Described camera, infrared induction transducer are connected with described central processing unit by the I2C bus respectively.
Described mobile device, wherein, described camera is the camera with automatic focusing camera function, described shutter function comprises: focusing à camera function, focusing à turn back to preview function.
Described mobile device, wherein, described central processing unit further comprises:
Focusing control unit is used under preview mode, when in very first time section T1, when the digital signal that receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realizes focus function; And wait for second time T 2, described camera focusing is finished;
The control unit of taking pictures is used for finishing when described camera focusing, in the 3rd time period T3, when the digital signal that receives from described infrared induction transducer is from large to small a trend, controls described camera and realizes camera function;
The preview control unit is used for finishing when the focusing of described camera, in the 4th time period T4, when the digital signal that receives from described infrared induction transducer is from large to small a trend, controls described camera and returns preview mode;
Wherein, described the 3rd time period T3 is less than 1/2nd of very first time section T1, and described the 4th time period T4 equals very first time section T1.
Method and the mobile device of realizing the camera shutter function by gesture identification provided by the present invention, owing to adopted when camera function is opened, discern fixedly gesture by infrared induction transducer (also being proximity transducer), the analog camera shutter, control camera " focusing à takes pictures ", " focusing à turns back to preview "; It makes the mobile phone of band camera increase the new function of " focusing à takes pictures ", " focusing à turns back to preview ", provides users with the convenient.
Description of drawings
The mobile device theory diagram of Fig. 1 embodiment of the invention.
Fig. 2 embodiment of the invention mobile device operation principle structural representation.
Fig. 3 is the inner theory diagram of the central processing unit of embodiment of the invention mobile device.
Fig. 4 is the method flow diagram that gesture identification realizes the camera shutter function that passes through of the embodiment of the invention.
Fig. 5 is take pictures motion characteristic and recognition principle figure of the mobile device focusing à of the embodiment of the invention.
Fig. 6 is that the mobile device focusing à of the embodiment of the invention turns back to preview action feature and recognition principle figure.
Fig. 7 is the mobile device work sampling principle flow chart of the embodiment of the invention.
Embodiment
Provided by the inventionly a kind ofly realize the method and the mobile device of camera shutter function by gesture identification, clearer, clear and definite for making purpose of the present invention, technical scheme and advantage, below develop simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of mobile device of the embodiment of the invention as shown in Figure 1, comprises infrared LED and drive circuit 110, infrared induction transducer 120, central processing unit 130 and camera 140;
Described infrared LED and drive circuit 110 are connected with described central processing unit 130, are used for sending infrared light according to the control of device 130 everywhere of described central authorities; Preferably, as shown in Figure 1, described central processing unit 130 is connected with described infrared LED and drive circuit 110 by IO mouth control switch.
Described infrared induction transducer 120 is connected with described central processing unit 130, be used to receive described infrared light by the reflective infrared light signal of different gesture reflected back varying strengths, and the digital signal that this reflective infrared light signal is converted into varying strength is sent to described central processing unit 130;
Described central processing unit 130 is used for receiving from described infrared induction transducer 120 digital signal of described varying strength, and produces control signal corresponding according to the digital signal of this varying strength, realizes corresponding shutter function to control described camera 140.Preferably, described camera 140, infrared induction transducer 120 are connected with described central processing unit 130 by the I2C bus respectively, and described camera is the camera with automatic focusing camera function, and described shutter function comprises: focusing à camera function, focusing à turn back to preview function.
Preferably, as shown in Figure 2, infrared LED 111 in described infrared LED and the drive circuit 110 is arranged on same plane 101 with described infrared induction transducer 120, and is provided with one every tabula rasa 102 between described infrared LED 111 and described infrared induction transducer 120.
Its control principle as shown in Figure 2, the infrared light pulse of infrared LED 111 emissions, when infrared light ran into object, some light reflected or reflexes to slowly on the infrared light transducer[sensor 120, through infrared light transducer[sensor 120 light signal is converted into digital signal, exports to described central processing unit 130 again; Object and induction region are near more, and the light that reflects is many more, and the light that infrared light transducer[sensor 120 receives is strong more, and the digital signal data that changes into is big more, and central processing unit 130 can be done relevant treatment according to the described camera 140 of the Digital Signals of reading.
Described mobile device, as shown in Figure 3, described central processing unit 130 further comprises:
Focusing control unit 131 is used under preview mode, when in very first time section T1, when the digital signal that receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realizes focus function; And wait for second time T 2, described camera focusing is finished.
The control unit 132 of taking pictures is used for finishing when described camera focusing, in the 3rd time period T3, when the digital signal that receives from described infrared induction transducer is from large to small a trend, controls described camera and realizes camera function.
Preview control unit 133 is used for finishing when the focusing of described camera, in the 4th time period T4, when the digital signal that receives from described infrared induction transducer is from large to small a trend, controls described camera and returns preview mode.
Wherein, described the 3rd time period T3 is less than 1/2nd of very first time section T1, and described the 4th time period T4 equals very first time section T1.
Based on the operation principle of the foregoing description mobile device, the embodiment of the invention also provides a kind of method by gesture identification realization camera shutter function, as shown in Figure 4, may further comprise the steps:
Step S410, open camera function, be provided with that device control infrared LED and drive circuit send infrared light by central authorities everywhere;
Step S420, setting receive described infrared light by the reflective infrared light signal of different gesture reflected back varying strengths by the infrared induction transducer, and the digital signal that this reflective infrared light signal is converted into varying strength sends to described central processing unit;
Step S430, described central processing unit receive the digital signal of described varying strength from the infrared induction transducer, and produce control signal corresponding according to the digital signal of this varying strength, realize corresponding shutter function to control described camera.
Wherein, described step S430 further comprises: realize focusing à camera function and realize that focusing à turns back to preview function.
When realizing that focusing à camera function specifically comprises: C1, under preview mode, when in very first time section T1, when the digital signal that described central processing unit receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realize focus function; C2, wait second time T 2, described camera focusing is finished.C30, finish when the focusing of described camera, in the 3rd time period T3, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and realize camera function.And described the 3rd time period T3 is less than 1/2nd of very first time section T1.
When realizing that focusing à turns back to preview function, specifically comprise:: C1, under preview mode, when in very first time section T1, when the digital signal that described central processing unit receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realize focus function; C2, wait second time T 2, described camera focusing is finished; C31, finish when the focusing of described camera, in the 4th time period T4, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and return preview mode.And described the 4th time period T4 equals very first time section T1.
Below will the present invention be described in further detail by concrete Application Example.
When realizing focusing à camera function, its motion characteristic and identification are referring to embodiment as shown in Figure 5:
The l action of focusing: as shown in Figure 5,111 is the infrared induction transducer, when pointing 200(referring to Fig. 2) by far passing closely to infrared induction transducer 111 induction windows, the vertical gesture near infrared induction transducer 111 induction windows of finger is promptly arranged, the digital signal of infrared induction transducer 111 outputs is gradient to DATA (max) by DATA (0), process time spent T1.
In the specific implementation, step 710 as shown in Figure 7 under preview mode, is provided with infrared LED ten secondary data of sampling, average, and DATA (0)=average (D0-D9), wherein, DATA(0) corresponding is environment or inner diffraction infrared light intensity; Do you judge sampling DATA (0)＜D(n)? if words get K=n; If D (n)〉DATA (0), the infrared light intensity that receives is greater than original value, shows that finger is arranged is close, and K is used to write down transition point.
As D (n)〉D (n-1), the infrared light strength increase that receives shows that finger is near sensor measurement (sensor) zone.
D (n) no longer increases, and shows that finger has touched the sensor zone; DATA(max) be pairing data of intensity of reflected light this moment, T1 is for from beginning near going up the used time of sensor to contact.
The action of taking pictures: as shown in Figure 5, finger 200 slides to a side (referring to Fig. 2) from infrared induction sensor sensing window, promptly after to good focal length the parallel gesture that skids off of finger is arranged; 111 outputs of infrared induction transducer are gradient to DATA (0) by DATA (max), process time spent T3.In the specific implementation, step 720 as shown in Figure 7; D (n)＜DATA(max); Expression accept light intensity begin to weaken; The moment that the M correspondence begins to weaken; T3 is the minimum used time that light intensity has maximum to weaken; T1〉2*T3, T1 is greater than the T3 of twice; Judge that gesture is that finger slides to a side; Otherwise, judge that finger vertically returns.
L and T1 is set generally greater than twice T3;
Therefore, at the mobile phone cam preview mode, be gradient to DATA (max) by DATA (0) when detecting transducer output D (n), last T1, promptly judging has the vertical close gesture of finger, controls described camera 140 and realizes focus function.Promptly under preview mode,, when the digital signal that described central processing unit receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realize focus function when in very first time section T1.
Behind good focal length, be gradient to DATA (0) when detecting transducer output D (n) by DATA (max), last T3, and T3 is less than 1/2nd T1, promptly judging after to good focal length has the parallel gesture that skids off of finger, and then the control mobile phone photograph.。Promptly finish when 140 focusings of described camera, in the 3rd time period T3, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and realize camera function.
When realizing focusing à preview function, its motion characteristic and identification are referring to embodiment as shown in Figure 6:
The l action of focusing: as shown in Figure 6, finger is by far passing nearly induction window (referring to Fig. 2) to infrared induction transducer 111, and the infrared induction transducer is exported D (n) and is gradient to DATA (max) by DATA (0), process time spent T1;
The l action of taking pictures: as shown in Figure 6, the finger perpendicular distal is from the induction window of infrared induction transducer 111, and infrared induction transducer 111 output D (n) are gradient to DATA (0) by DATA (max), process time spent T4;
L and T1 approximate T4;
Therefore, at the mobile phone cam preview mode, be gradient to DATA (max) by DATA (0) when detecting transducer output D (n), last T1, promptly judging has the vertical close gesture of finger, the focusing of control hand;
Behind good focal length, be gradient to DATA (0) when detecting infrared induction transducer 111 output D (n) by DATA (max), last T3, and T3 approximates T1, promptly judge point after to good focal length and perpendicular distal from induction region, and then get back to preview mode.Promptly finish when the focusing of described camera, in the 4th time period T4, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and return preview mode.And described the 4th time period T4 equals very first time section T1.
In whole process, processor control infrared induction transducer 111 is with sampling period T image data; In order to reduce power consumption, infrared LED can be set to the pulse emission, opens infrared LED before each read data, runs through number and closes infrared LED.In addition, the Current Control infrared LED luminous intensity of suitable size is set according to the experiment test result, it is preferable that infrared induction transducer 111 vertical detection coverages are arranged on 2 centimetres of left and right sides.
In sum, method and the mobile device of realizing the camera shutter function by gesture identification provided by the present invention, owing to adopted when camera function is opened, discern fixedly gesture by infrared induction transducer (also being proximity transducer), the analog camera shutter, control camera " focusing à takes pictures ", " focusing à turns back to preview "; It makes the mobile phone of band camera increase the new function of " focusing à takes pictures ", " focusing à turns back to preview ", provides users with the convenient.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. the method by gesture identification realization camera shutter function is characterized in that, comprises step:
A, open camera function, be provided with that device control infrared LED and drive circuit send infrared light by central authorities everywhere;
B, setting receive described infrared light by the reflective infrared light signal of different gesture reflected back varying strengths by the infrared induction transducer, and the digital signal that this reflective infrared light signal is converted into varying strength sends to described central processing unit;
C, described central processing unit receive the digital signal of described varying strength from the infrared induction transducer, and produce control signal corresponding according to the digital signal of this varying strength, realize corresponding shutter function to control described camera.
2. the method by gesture identification realization camera shutter function according to claim 1 is characterized in that described step C further comprises:
C1, under preview mode, when in very first time section T1, when the digital signal that described central processing unit receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realize focus function;
C2, wait second time T 2, described camera focusing is finished.
3. the method by gesture identification realization camera shutter function according to claim 2 is characterized in that described step C also comprises:
C30, finish when the focusing of described camera, in the 3rd time period T3, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and realize camera function.
4. the method by gesture identification realization camera shutter function according to claim 3 is characterized in that described the 3rd time period T3 is less than 1/2nd of very first time section T1.
5. the method by gesture identification realization camera shutter function according to claim 2 is characterized in that described step C also comprises:
C31, finish when the focusing of described camera, in the 4th time period T4, when the digital signal that described central processing unit receives from described infrared induction transducer is from large to small a trend, controls described camera and return preview mode.
6. the method by gesture identification realization camera shutter function according to claim 5 is characterized in that described the 4th time period T4 equals very first time section T1.
7. a mobile device is characterized in that, comprises infrared LED and drive circuit, infrared induction transducer, processor and camera;
Described infrared LED and drive circuit are connected with described central processing unit, are used for sending infrared light according to the control of device everywhere of described central authorities;
Described infrared induction transducer is connected with described central processing unit, be used to receive described infrared light by the reflective infrared light signal of different gesture reflected back varying strengths, and the digital signal that this reflective infrared light signal is converted into varying strength sends to described central processing unit;
Described central processing unit is used for receiving from described infrared induction transducer the digital signal of described varying strength, and produces control signal corresponding according to the digital signal of this varying strength, realizes corresponding shutter function to control described camera.
8. mobile device according to claim 7, it is characterized in that, infrared LED in described infrared LED and the drive circuit and described infrared induction transducer are arranged on same plane, and are provided with one every tabula rasa between described infrared LED and described infrared induction transducer;
Described central processing unit is connected with described infrared LED and drive circuit by IO mouth control switch; Described camera, infrared induction transducer are connected with described central processing unit by the I2C bus respectively.
9. mobile device according to claim 7 is characterized in that, described camera is the camera with automatic focusing camera function, and described shutter function comprises: focusing à camera function, focusing à turn back to preview function.
10. mobile device according to claim 7 is characterized in that, described central processing unit further comprises:
Focusing control unit is used under preview mode, when in very first time section T1, when the digital signal that receives from described infrared induction transducer is the trend of changing from small to big, controls described camera and realizes focus function; And wait for second time T 2, described camera focusing is finished;
The control unit of taking pictures is used for finishing when described camera focusing, in the 3rd time period T3, when the digital signal that receives from described infrared induction transducer is from large to small a trend, controls described camera and realizes camera function;
The preview control unit is used for finishing when the focusing of described camera, in the 4th time period T4, when the digital signal that receives from described infrared induction transducer is from large to small a trend, controls described camera and returns preview mode;
Wherein, described the 3rd time period T3 is less than 1/2nd of very first time section T1, and described the 4th time period T4 equals very first time section T1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105442147A CN102055844B (en) | 2010-11-15 | 2010-11-15 | Method for realizing camera shutter function by means of gesture recognition and handset device |
| PCT/CN2011/081750 WO2012065516A1 (en) | 2010-11-15 | 2011-11-03 | Method and mobile phone device for realizing the shutter function of camera by the gesture recognition |
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| CN2010105442147A CN102055844B (en) | 2010-11-15 | 2010-11-15 | Method for realizing camera shutter function by means of gesture recognition and handset device |
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| WO2012065516A1 (en) * | 2010-11-15 | 2012-05-24 | 惠州Tcl移动通信有限公司 | Method and mobile phone device for realizing the shutter function of camera by the gesture recognition |
| CN102158645A (en) * | 2011-01-11 | 2011-08-17 | 华为终端有限公司 | Shooting control method, shooting control device and photographic device |
| CN102891957A (en) * | 2011-07-21 | 2013-01-23 | 佛山普立华科技有限公司 | Camera |
| CN104170367A (en) * | 2011-12-28 | 2014-11-26 | 英特尔公司 | Virtual shutter image capture |
| CN104170367B (en) * | 2011-12-28 | 2019-06-18 | 英特尔公司 | A kind of image-capturing method, device and computer-readable medium |
| CN110647244A (en) * | 2012-05-04 | 2020-01-03 | 三星电子株式会社 | Terminal and method for controlling the same based on spatial interaction |
| WO2014048104A1 (en) * | 2012-09-29 | 2014-04-03 | 华为技术有限公司 | Method and apparatus for controlling terminal device by using non-contact gesture |
| CN103713735A (en) * | 2012-09-29 | 2014-04-09 | 华为技术有限公司 | Method and device of controlling terminal equipment by non-contact gestures |
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| CN105117005B (en) * | 2015-08-17 | 2018-09-14 | 湖南迪文科技有限公司 | Gesture recognition system based on light sensing and method |
| CN105117005A (en) * | 2015-08-17 | 2015-12-02 | 湖南迪文科技有限公司 | Light sensing based gesture identification system and method |
| CN105824406A (en) * | 2015-11-30 | 2016-08-03 | 维沃移动通信有限公司 | Photographing method and terminal |
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| CN102055844B (en) | 2013-05-15 |
| WO2012065516A1 (en) | 2012-05-24 |
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