CN102968219A - Interactive computer input equipment on basis of graphic processing - Google Patents
Interactive computer input equipment on basis of graphic processing Download PDFInfo
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- CN102968219A CN102968219A CN2012100048533A CN201210004853A CN102968219A CN 102968219 A CN102968219 A CN 102968219A CN 2012100048533 A CN2012100048533 A CN 2012100048533A CN 201210004853 A CN201210004853 A CN 201210004853A CN 102968219 A CN102968219 A CN 102968219A
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Abstract
The invention discloses equipment for implementing a function of carrying out wireless operation on a computer at a position of a display screen such as a projection screen by utilizing an image processing method. The equipment consists of a pen-shaped transmitting device, a receiving device and a corresponding image analysis module. By the pen-shaped transmitting device, a user presses a corresponding button at the corresponding position of the display screen such as the projection screen to send out near-infrared light and a mouse button signal; the near-infrared light and the mouse button signal are received by the receiving device; by corresponding image analysis and signal processing, coordinates and button information of the transmitting device relative to the screen are obtained; and a control command is sent to the computer, so that the function of carrying out wireless operation on the computer is implemented.
Description
Technical field
The present invention relates to a kind of interactive computer input equipment based on graphics process, relate to more specifically a kind of like this input equipment, wherein the user at the screen position such as projection screen place by form of a stroke or a combination of strokes emitter emission near infrared and bluetooth mouse signal, this signal becomes pen shaped arrangement with respect to coordinate information and the mouse right and left key signal of screen by corresponding software processing after being received by receiving apparatus, send computer control signal according to the operation of correspondence, realize the purpose of operation computing machine.
Background technology
Traditional computer entry device is keyboard and mouse.In recent years, along with the development of touch screen technology, many computing machines adopt touch-screen as a kind of input equipment, especially for panel computer.Compare with mouse, directly on click or touch display unit, corresponding pattern has improved convenience and man-machine interaction that computing machine uses.Yet, touch-screen due to complex manufacturing technology and cost of manufacture higher, its application is subject to certain restrictions.For example, touch-screen applications is still had technically certain difficulty and do not have economy in the larger projection screen of area.
And wireless mouse is by measuring its roller ball or having the device amount of movement of similar functions in the data of the component of X-axis and Y direction, by encoder encodes, from the transmission antennas transmit signal.This signal is obtained by receiving trap and is connected with computing machine by treatment circuit, and the amount of movement of mouse is passed to computing machine.The handling characteristics of wireless mouse makes the mouse pointer on screen move to needed position for the operator needs in one plane rolling mouse.The process need cost regular hour of this rolling mouse.Especially utilizing mouse to carry out when routine writes or draw, the mode of this transmission amount of movement makes writes or drawing course is difficult to accurately carry out.
This shows, although multiple interactive computer input equipment is arranged at present, if need on giant-screen fast and economically and realize mutual control between computing machine, existing equipment still is difficult to realize.
Summary of the invention
The object of the invention is to, a kind of relative space position, movement locus and mouse right and left key signal that utilizes near-infrared receiving receiving apparatus and bluetooth mouse signal receiver to obtain user's mobile form of a stroke or a combination of strokes emitter on screen is provided, by the corresponding software analysis, realize having the computer entry device of mutual control.
The present invention mainly is comprised of form of a stroke or a combination of strokes emitter, receiving trap and corresponding computing machine Treatment Analysis module.Form of a stroke or a combination of strokes emitter comprises shell, button, near infrared light emitter, micro-processor interface circuit and power supply.Receiving trap comprises can be to camera, radio mouse signal receiving trap and treatment circuit, camera and the treatment circuit of the near infrared light imaging interface with computing machine.
It is hand-held that form of a stroke or a combination of strokes emitter is used for the user, its profile is as marking pen, the hand-held middle part that is in, head is the near infrared light generating means, can adopt near-infrared luminous diode or near-infrared laser source as the near infrared light generating means, inside is radio mouse signal generation module, adopts the signal generation apparatus of common wireless mouse to get final product, and signal passes through Bluetooth transmission.The shell front end has two pieces of control knobs, and its effect is equivalent to the right and left key of mouse, near infrared light generating means emission near infrared light when above-mentioned button is pressed, radio mouse signal generation module emission mouse signal.In order to reduce above-mentioned volume and weight for hand-held form of a stroke or a combination of strokes emitter, power acquisition powered battery.
Receiving trap is divided into image capture module and mouse signal receiver module two parts.Image capture module is used for catching the near infrared light that the near infrared light generator is launched.Do not have around under the condition of other obvious near-infrared light sources, the filtration of leading near infrared filter by the band of installing in image capture device, the image that photographs is the light spot under dark background, and this hot spot is the hot spot of the near infrared light formation of near infrared light generator emission.The mouse signal receiver module adopts the bluetooth receiving trap of common wireless mouse.Image capture module adopts USB interface to be connected with computing machine with the mouse signal receiver module.Have Bluetooth function as computing machine, save the bluetooth module that the mouse signal receiver directly carries with computing machine.
Computing machine Treatment Analysis module comprises that near-infrared image is processed, camera position is demarcated and sends mouse signal three parts compositions.The purpose that image is processed be extract light spot image centre of gravity place as pen shaped arrangement the coordinate in image, low noise light spot image will be obtained after image filtering, by automatic global threshold with the light spot image binaryzation after the UNICOM zone of Retention area maximum only, ask its center of gravity as the coordinate of pen shaped arrangement.The purpose of camera calibration is to revise the corresponding relation of video camera imaging coordinate system and projection screen coordinate system, makes the coordinate transformation of pen shaped arrangement on light spot image that obtains be its coordinate with respect to computer screen.After obtaining coordinate information and mouse right and left key information, can call corresponding system function for example Windows mouse information function send to computing machine the order that mouse is clicked, thereby realize mouse function.
Whole implementation of the present invention is as follows:
Receiving trap is fixing in place, require shooting area to comprise at least the screen scope that the operator is used to input, and above-mentioned screen account for the main area of shooting area, screen can be that projection screen or other are not launched the plane of near infrared light.Need first to move calibration software before use, be specially at first and produce the anchor point of four corners and be projected to screen by computer, clicked successively four anchor points that occur on projection screen by emitter by the user, the relation of compute location point and actual computer screen realizes demarcating.Can use after completing demarcation, but the position of receiving trap need to fix, finish until use.During operation, as the user when nearly infrared launcher moves on screen and clicks, emitter sends near infrared light and mouse signal, after receiving trap receives near-infrared image, by USB interface, image is sent to computing machine, computing machine can obtain the centre of gravity place of speck in image by corresponding graphical analysis, and namely emitter is with respect to the coordinate of image pickup plane; Mouse signal is sent to computing machine by bluetooth, coordinates the coordinate information that obtains, and sends mouse information to computing machine, thereby realizes the operation to computing machine.
The invention has the advantages that and to realize computer remote is operated on the display screens such as giant-screen especially projection screen.The conventional wireless MouseAcross is crossed and is measured its roller ball or have the device amount of movement of similar functions in the data of the component of X-axis and Y direction, by encoder encodes, from the transmission antennas transmit signal.This signal is obtained by receiving trap and is connected with computing machine by treatment circuit, and the amount of movement of mouse is passed to computing machine.During use, the operator needs in one plane rolling mouse, makes the mouse pointer on screen move to needed position, simultaneously the process need of the rolling mouse cost regular hour.Especially utilize mouse to carry out when routine writes or draw at giant-screen (such as projection screen etc.), the mode of this transmission amount of movement makes writes or drawing course is difficult to accurately carry out.In the present invention, the operator directly points to the infrared light of the form of a stroke or a combination of strokes emitter emission position that needs mouse pointer to arrive on screen, press the switch of near infrared light generator, can realize directly mouse pointer being moved to the above-mentioned position that needs mouse pointer to arrive, compare operation more directly with convenient with wireless mouse, be applicable to the occasions such as speech or public lecture.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the principle schematic that the present invention is based on the interactive computer input equipment of graphics process;
Fig. 2 is the form of a stroke or a combination of strokes emitter schematic diagram that the present invention is based on the interactive computer input equipment of graphics process;
Fig. 3 is the image received device structural drawing that the present invention is based on the interactive computer input equipment of graphics process;
Fig. 4 is the form of a stroke or a combination of strokes emitter theory diagram that the present invention is based on the interactive computer input equipment of graphics process;
Fig. 5 is the Graphic processing algorithm flow chart that the present invention is based on the interactive computer input equipment of graphics process.
Fig. 6 is the front scaling method schematic diagram of use that the present invention is based on the interactive computer input equipment of graphics process.
Wherein: 101 is screen, 102 is form of a stroke or a combination of strokes emitter, 103 is receiving trap, and 104 is computing machine, and 105 is projector, the 201st, form of a stroke or a combination of strokes emitter contour structures, 202 and 203 is two buttons of form of a stroke or a combination of strokes emitter, and 204 is near infrared light emitter in form of a stroke or a combination of strokes emitter, and 301 is near infrared filter, 302 is optical lens, and 601,602,603,604 for demarcating 4 points that produce on screen.
Embodiment
The present embodiment has the function that realizes mouse action on projection screen.
The 201st, form of a stroke or a combination of strokes emitter contour structures, 202 and 203 is two buttons of form of a stroke or a combination of strokes emitter, has respectively mouse right and left key function.204 is near infrared light emitter in form of a stroke or a combination of strokes emitter, adopts near infrared light emitting diode in this example.Near infrared light generating means 204 emission near infrared lights when having one to be pressed in button 202 and button 203; When button 202 and button 203 all are pressed or are not pressed, near infrared light generating means 204 is not launched near infrared light.
The position of receiving trap 103 is fixed, and is used for catching the near infrared light that near infrared light generator 204 is launched.Generally, do not have around under the condition of other obvious near-infrared light sources, the image that camera is taken is the light spot under dark background, and this hot spot is the hot spot of the near infrared light formation of near infrared light generator 204 emissions.Obtain the coordinate of spot center in every two field picture by computing machine 104 software analysis, this coordinate is carried out coordinate transform, calculate the coordinate of form of a stroke or a combination of strokes emitter 102 on screen 101 when taking.Corresponding software moves to mouse pointer the function that above-mentioned coordinate position has namely been completed mouse picking.The operator is by pressing the button 202 and 203, and in form of a stroke or a combination of strokes emitter, the radio mouse signal emitting antenna is launched respectively wireless mouse left-right key signal, and this signal is connect passes to computing machine after receiving trap 103 receives, and realizes the function of mouse right and left key.
The present invention needs to demarcate before use, the method of this demarcation is: after selected screen 101 and receiving trap 103 positions are fixing, throw on screen by corresponding software and show that four points 401,402,403,404, the position relationship of these four points are four summits that consist of a rectangle.Near-infrared image trap setting 301 in receiving trap begins to take.The operator contacts above-mentioned four points 401,402,403,404 successively with the front end of form of a stroke or a combination of strokes emitter 102, and presses the button 202 when contact, at this moment the switch opens of near infrared light emitter 204.The image transfer that receiving trap 103 is taken is demarcated by the relative position of graphical analysis form of a stroke or a combination of strokes emitter 102 and screen 101 in computing machine 104.After demarcation, in screen 101, rectangle and the interior zone thereof at four some places are effective input area.
This embodiment has realized input function based on the interactive computer input equipment of graphics process by a series of measure, and the operating process that realizes is more convenient and quick than mouse, can be at the enterprising line operate of giant-screen.
Below by reference to the accompanying drawings the specific embodiment of the present invention is described; but these explanations can not be understood to limit scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis is all protection scope of the present invention.
Claims (10)
1. interactive computer input equipment based on graphics process, formed by form of a stroke or a combination of strokes emitter, receiving trap and corresponding image analysis module, it is characterized in that near infrared light signal and blue-tooth radio-mouse signal that described receiving trap is launched by receiving described form of a stroke or a combination of strokes emitter, processed by image analysis module and realize the computer input function.
2. the interactive computer input equipment based on graphics process claimed in claim 1, is characterized in that described form of a stroke or a combination of strokes emission profile as marking pen, makes described form of a stroke or a combination of strokes emitter be applicable to one-handed performance.
3. interactive computer input equipment based on graphics process claimed in claim 1, it is characterized in that described form of a stroke or a combination of strokes emitter comprises near infrared light emitter, button, micro-processor interface circuit, wireless mouse transmitter module and power supply, wherein above-mentioned near infrared light emitter is positioned at described form of a stroke or a combination of strokes emitter front end, and above-mentioned button is arranged in described form of a stroke or a combination of strokes emitter front end.
4. the interactive computer input equipment based on graphics process claimed in claim 1, is characterized in that the button of described form of a stroke or a combination of strokes emitter is realized the function of above-mentioned near infrared light generating means switch, and be connected respectively the wireless mouse module right and left key.
5. described interactive computer input equipment based on graphics process of claim 1 or 4, when the button that it is characterized in that described form of a stroke or a combination of strokes emitter is pressed, above-mentioned near infrared light generating means emission near infrared light.
6. described interactive computer input equipment based on graphics process of claim 1 or 4, when the button that it is characterized in that described form of a stroke or a combination of strokes emitter is pressed, above-mentioned near infrared light generating means emission mouse left-right key signal.
7. computer entry device claimed in claim 1, it is characterized in that above-mentioned receiving trap comprises can be to video camera and the radio mouse signal receiver module of near infrared light imaging.
8. a computer entry device claimed in claim 1, is characterized in that the infrared image receiver module of above-mentioned receiving trap is comprised of near infrared filter, optical lens, imageing sensor and USB connector.
9. a computer entry device claimed in claim 1, is characterized in that above-mentioned image analysis module has the demarcation of video camera relative position, image filtering, chooses image threshold and extracts infrared light spot centre of gravity place function.
10. interactive computer input equipment based on graphics process claimed in claim 1, it is characterized in that above-mentioned receiving trap position fixes, complete mouse pointer is moved to correspondence position and carry out mouse clicking operation function when on above-mentioned form of a stroke or a combination of strokes emitter contact screen, the different point in position and button are pressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100048533A CN102968219A (en) | 2012-01-04 | 2012-01-04 | Interactive computer input equipment on basis of graphic processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100048533A CN102968219A (en) | 2012-01-04 | 2012-01-04 | Interactive computer input equipment on basis of graphic processing |
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| CN102968219A true CN102968219A (en) | 2013-03-13 |
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| CN2012100048533A Pending CN102968219A (en) | 2012-01-04 | 2012-01-04 | Interactive computer input equipment on basis of graphic processing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104281301A (en) * | 2013-07-05 | 2015-01-14 | 联想(北京)有限公司 | Input method and electronic equipment |
| CN106023720A (en) * | 2016-05-13 | 2016-10-12 | 李建龙 | Smart pointer for screen marking in projection teaching |
| CN108595026A (en) * | 2018-03-28 | 2018-09-28 | 中山大学 | A kind of new infrared laser pen for realizing mouse function |
| CN109493288A (en) * | 2018-10-23 | 2019-03-19 | 安徽慧视金瞳科技有限公司 | A kind of interactive mode Teaching System hot spot self organizing maps algorithm |
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| US20090314552A1 (en) * | 2008-06-23 | 2009-12-24 | Silverbrook Research Pty Ltd | Retractable electronic pen comprising actuator button decoupled from force sensor |
| CN101631218A (en) * | 2009-02-03 | 2010-01-20 | 张毅 | Multimedia interactive projection machine |
| CN101856933A (en) * | 2009-04-13 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | Information recording device and optical hand writing system |
| CN102184053A (en) * | 2011-04-15 | 2011-09-14 | 深圳市华测检测技术股份有限公司 | Novel projector unit |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101095098A (en) * | 2004-11-12 | 2007-12-26 | 新标志股份有限公司 | Visual system |
| US20090314552A1 (en) * | 2008-06-23 | 2009-12-24 | Silverbrook Research Pty Ltd | Retractable electronic pen comprising actuator button decoupled from force sensor |
| CN101631218A (en) * | 2009-02-03 | 2010-01-20 | 张毅 | Multimedia interactive projection machine |
| CN101856933A (en) * | 2009-04-13 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | Information recording device and optical hand writing system |
| CN102184053A (en) * | 2011-04-15 | 2011-09-14 | 深圳市华测检测技术股份有限公司 | Novel projector unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104281301A (en) * | 2013-07-05 | 2015-01-14 | 联想(北京)有限公司 | Input method and electronic equipment |
| CN104281301B (en) * | 2013-07-05 | 2017-12-29 | 联想(北京)有限公司 | A kind of input method and electronic equipment |
| CN106023720A (en) * | 2016-05-13 | 2016-10-12 | 李建龙 | Smart pointer for screen marking in projection teaching |
| CN108595026A (en) * | 2018-03-28 | 2018-09-28 | 中山大学 | A kind of new infrared laser pen for realizing mouse function |
| CN109493288A (en) * | 2018-10-23 | 2019-03-19 | 安徽慧视金瞳科技有限公司 | A kind of interactive mode Teaching System hot spot self organizing maps algorithm |
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Application publication date: 20130313 |
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