CN1674042A - Contact screen information inputting positioning method based on image recognition - Google Patents
Contact screen information inputting positioning method based on image recognition Download PDFInfo
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- CN1674042A CN1674042A CNA2005100098975A CN200510009897A CN1674042A CN 1674042 A CN1674042 A CN 1674042A CN A2005100098975 A CNA2005100098975 A CN A2005100098975A CN 200510009897 A CN200510009897 A CN 200510009897A CN 1674042 A CN1674042 A CN 1674042A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000013068 control sample Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
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- 238000010897 surface acoustic wave method Methods 0.000 description 1
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Abstract
The touch screen information input location method based on image recognition is realized via the following steps: for the control circuit to send operation command to the first CCD data acquisition unit and the second CCD data acquisition unit, and for the two CCD cameras fixed separately at two adjacent corners of the display screen in intelligent equipment to take the image data of the point touch object on the surface of the display screen; and for the image distinguishing and locating calculation unit to confirm and calculate the image data to obtain the 2D coordinates of the point touch object, and for the signal output unit to send the 2D coordinates to the man-computer interface of the intelligent equipment. The method of the present invention needs only two CCD image acquisition sets, and has simple structure and reliable operation, and is widely suitable for the fields capable of installing optical image acquiring elements on one side or two parallel sides of display screen only.
Description
Technical field:
The present invention relates to the contact screen information input method of computing machine.
Background technology:
Touch-screen is the important input equipment that people and multimedia computer carry out man-machine interaction, obtaining widespread use such as fields such as flight inquiring machine, the machines that makes a draft of money, touch-screen can divide four kinds from the principle of work aspect at present, and they are respectively resistance-type, infrared-type, capacitor induction type and surface acoustic wave type.The infrared-type touch-screen is higher, the widely used a kind of device of performance in the present touching technique, the basic structure of infrared-type touch-screen, be at one in the framework at display edge, four edges along the display surface of display are installed many infrared transmitting tubes and receiving tube in a certain order, constitute a mutually perpendicular transmitting-receiving array, thereby can detect finger or the position of indicator on touch-screen, there is following shortcoming in it: the first, and use occasion is restricted.Owing to need to constitute mutually perpendicular infrared ray transmitting-receiving array, all infrared and receiving tube to be installed along four edges of display surface, only can be so can not satisfy in the specific demand of a side or the both sides that are parallel to each other installation associated transmissions receiving equipment; The second, the infrared emission of use and receiving tube quantity are more, and need the numerous optical lens of usage quantity, and structure repeats, and the reliability of work is low.
Summary of the invention:
The purpose of this invention is to provide a kind of contact screen information inputting positioning method based on image recognition, the prior art use occasion is restricted to overcome, structure repeats and the low defective of reliability of work.Technical scheme of the present invention realizes by following step, one, send work order for simultaneously the first ccd data collecting unit 2 and the second ccd data collecting unit 3 by the control circuit 6 of control sample frequency, the first ccd data collecting unit 2 at the display screen 1-1 adjacent angular place by being separately fixed at smart machine 1 and the point that display screen 1 surface is touched in 3 picked-ups of the second ccd data collecting unit touch the view data of thing 4; Two, the view data of touching thing 4 is sent into image recognition and location Calculation unit 5 and is confirmed and calculate, and the incident angle that touches thing 4 to the first ccd data collecting units 2 and the second ccd data collecting unit 3 according to point converses and a little touches two dimension coordinates of thing 4 on display screen 1-1; Three, point is touched two dimension coordinates of thing 4 on display screen 1-1 are sent into smart machine 1 by signal output unit 7 man-machine interface; Repeat above three steps in order and just finished the information input of people smart machine.Method of the present invention is at first gathered the view data of synchronization from two ccd data collecting units under the control of control module 6, then the image utilization image recognition technology of gathering is identified the center that points such as finger, nib touch the picture of thing, principle and optical principle by the human eye vision judging distance calculates the two-dimensional coordinate locating information of a little touching thing again, by signal output unit 7 locating information exported to the keyboard or the MouseAcross communication interface of electronic products such as PDA, mobile phone, panel computer or computing machine at last.The present invention is based on the contact screen information inputting positioning method of image recognition and do not need a lot of optical imagery acquisition elements owing to only need two ccd image harvesters, therefore simple in structure, reliable operation, can be widely used in only can be in the occasion of display screen one side or the both sides that are parallel to each other installation optical imagery acquisition elements, or be used for because of the too little electronic product that a large amount of physical buttons can't be installed of display area, also need avoid the hospital of control of dust especially applicable to some, environment such as dust free room, the present invention is reasonable in design, reliable operation has bigger promotional value.
Description of drawings:
Fig. 1 is the principle schematic that thing 4 image informations are touched in collection point of the present invention, and Fig. 2 is the synoptic diagram that flows to of signal of the present invention.
Embodiment:
Embodiment one: specify present embodiment below in conjunction with Fig. 1 and Fig. 2.Present embodiment is realized by following step, one, send work order for simultaneously the first ccd data collecting unit 2 and the second ccd data collecting unit 3 by the control circuit 6 of control sample frequency, the first ccd data collecting unit 2 at the display screen 1-1 adjacent angular place by being separately fixed at smart machine 1 and the point that display screen 1 surface is touched in 3 picked-ups of the second ccd data collecting unit touch the view data of thing 4; Two, the view data of touching thing 4 is sent into image recognition and location Calculation unit 5 and is confirmed and calculate, and the incident angle that touches thing 4 to the first ccd data collecting units 2 and the second ccd data collecting unit 3 according to point converses and a little touches two dimension coordinates of thing 4 on display screen; Three, point is touched two dimension coordinates of thing 4 on display screen are sent into smart machine 1 by signal output unit 7 man-machine interface; The control of signal output unit 7 controlled unit 6 finish with data acquisition synchronously; Repeat above three steps in order and just finished the information input of people smart machine.The described first ccd data collecting unit 2 and the second ccd data collecting unit 3 all are linear CCD (linear array charge-coupled image sensor) vision sensors, touch of camera lens 11 respectively on the linear array CCD photosensitive unit 12 of first ccd data collecting unit 2 and second ccd data collecting unit 3 imaging of the shape of thing 4 through the first ccd data collecting unit 2 and the second ccd data collecting unit 3 at the step 1 mid point, because the position and the fixed angle of the first ccd data collecting unit 2 and the second ccd data collecting unit 3, camera lens 11 is fixed with the relative position of linear array CCD photosensitive unit 12, thus according to point touch incident angle that thing 4 is engraved in the first ccd data collecting unit 2 and the second ccd data collecting unit 3 when a certain just can unique definite point touch thing 4 this time be engraved in bidimensional coordinate position on the display screen.Described camera lens 11 is a wide-angle lens.
Embodiment two: the difference of present embodiment and embodiment one is that described smart machine 1 is PDA (Personal Digital Assistant personal digital assistant), individual mobile phone, notebook computer or desk-top computer.The employed electronic installation of the inventive method both can in be built in smart machine 1, finish function corresponding by the program in the smart machine 1, also can finish function corresponding by the independent design circuit arrangement, can also realize function corresponding with the extensive logical circuit of special use.
Embodiment three: the difference of present embodiment and embodiment one is that the visual angle of camera lens 11 is 90～100 degree.Camera lens 11 is selected TOPGON type wide-angle lens for use.
Claims (4)
1, based on the contact screen information inputting positioning method of image recognition, it is characterized in that it realizes by following step, one, send work order for simultaneously the first ccd data collecting unit (2) and the second ccd data collecting unit (3) by the control circuit (6) of control sample frequency, the first ccd data collecting unit (2) at display screen (1-1) the adjacent angular place by being separately fixed at smart machine (1) and the second ccd data collecting unit (3) absorb and touch the surperficial point of display screen (1) and touch the view data of thing (4); Two, the view data of touching thing (4) is sent into image recognition and location Calculation unit (5) and is confirmed and calculate, and touches thing (4) according to point and converses to the incident angle of the first ccd data collecting unit (2) and ccd data collecting unit (3) and a little touch two dimension coordinates of thing (4) on display screen (1-1); Three, point is touched two dimension coordinates of thing (4) on display screen (1-1) are sent into smart machine (1) by signal output unit (7) man-machine interface; Repeat above three steps in order and just finished the information input of people smart machine.
2, the contact screen information inputting positioning method based on image recognition according to claim 1 is characterized in that described smart machine (1) is PDA, individual mobile phone, notebook computer or desk-top computer.
3, the contact screen information inputting positioning method based on image recognition according to claim 1 is characterized in that the camera lens (11) of the first ccd data collecting unit (2) and the second ccd data collecting unit (3) is a wide-angle lens.
4, the contact screen information inputting positioning method based on image recognition according to claim 3, the visual angle that it is characterized in that camera lens (11) are 90～100 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100098975A CN1674042A (en) | 2005-04-15 | 2005-04-15 | Contact screen information inputting positioning method based on image recognition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100098975A CN1674042A (en) | 2005-04-15 | 2005-04-15 | Contact screen information inputting positioning method based on image recognition |
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| CN1674042A true CN1674042A (en) | 2005-09-28 |
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| CNA2005100098975A Pending CN1674042A (en) | 2005-04-15 | 2005-04-15 | Contact screen information inputting positioning method based on image recognition |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221942A (en) * | 2009-03-06 | 2011-10-19 | 孙倩倩 | Touch screen using photosensitive diode chip |
| CN102298471A (en) * | 2009-03-06 | 2011-12-28 | 孙倩倩 | Optical touch screen |
| WO2012031513A1 (en) * | 2010-09-07 | 2012-03-15 | 北京汇冠新技术股份有限公司 | Touch positioning method, touch screen, touch system, and display |
| CN101556516B (en) * | 2008-04-08 | 2012-09-26 | 乐金显示有限公司 | Multi-touch system and driving method thereof |
| CN104345989A (en) * | 2013-08-06 | 2015-02-11 | 纬创资通股份有限公司 | Optical touch system and touch display system |
-
2005
- 2005-04-15 CN CNA2005100098975A patent/CN1674042A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556516B (en) * | 2008-04-08 | 2012-09-26 | 乐金显示有限公司 | Multi-touch system and driving method thereof |
| CN102221942A (en) * | 2009-03-06 | 2011-10-19 | 孙倩倩 | Touch screen using photosensitive diode chip |
| CN102298471A (en) * | 2009-03-06 | 2011-12-28 | 孙倩倩 | Optical touch screen |
| WO2012031513A1 (en) * | 2010-09-07 | 2012-03-15 | 北京汇冠新技术股份有限公司 | Touch positioning method, touch screen, touch system, and display |
| US9430080B2 (en) | 2010-09-07 | 2016-08-30 | Beijing Irtouch Systems Co., Ltd | Touch positioning method, touch screen, touch system, and display |
| CN104345989A (en) * | 2013-08-06 | 2015-02-11 | 纬创资通股份有限公司 | Optical touch system and touch display system |
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