CN101813995A - Method for recognizing gesture on infrared induction type electronic whiteboard - Google Patents
Method for recognizing gesture on infrared induction type electronic whiteboard Download PDFInfo
- Publication number
- CN101813995A CN101813995A CN 201010169859 CN201010169859A CN101813995A CN 101813995 A CN101813995 A CN 101813995A CN 201010169859 CN201010169859 CN 201010169859 CN 201010169859 A CN201010169859 A CN 201010169859A CN 101813995 A CN101813995 A CN 101813995A
- Authority
- CN
- China
- Prior art keywords
- gesture
- touch objects
- identified
- coordinates
- coordinate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Position Input By Displaying (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention provides a method for recognizing the gesture on an infrared induction type electronic whiteboard. The method comprises the following steps: classifying the first gesture recognition according to the number of touching objects; classifying the second gesture recognition according to the area of the touching objects, and further distinguishing the specific types of the gesture; and distinguishing the exact gesture according to the determined physical coordinates, and then, performing the functions of the gesture on the infrared induction type electronic whiteboard by whiteboard software. The gesture recognition mode of the invention is capable of recognizing most of the gestures on the infrared whiteboard so far, and the invention is characterized by the gesture recognition of the right key of a mouse; and the invention has the advantages of high recognition rate, accurate recognition and little error recognition.
Description
[technical field]
The invention belongs to areas of information technology, specifically be meant a kind of method of recognizing gesture on infrared induction type electronic whiteboard.
[background technology]
Interactive electric whiteboard claims " digital touch-screen " again.Its function is and can controls in the face of the host computer that links to each other by touch pad.Projector projects the screen image of computer on the electronic whiteboard, and the user touches electronic whiteboard plate face can control computer.The various application operating programs of operation on the computer that electronic whiteboard connects, can directly realize handwriting, graphic plotting, literal input, file call, delete duplicate, preserve image, block, video playback, direct multiple demo function such as printing.Move specific application program, configuration interactive formula electronic whiteboard and high definition camera can be realized the remote visible Web conference.
The scanning grid that the infrared electronic blank constitutes level and vertical direction by infrared ray reception around gathering in the viewing area and power valve, form a plane of scanning motion net, when object blocks is lived in the grid certain to level and vertical scan line, just can determine X, Y coordinate by the level that is blocked and the infrared ray position of vertical direction.
At present, the infrared electronic blank can use finger or other any opaque article to carry out touch operation, very simple and easy to do, and it is simple in structure because of it, be not subjected to electric current, voltage and electrostatic interference, have plurality of advantages such as high stability and high resolving power, more and more main products that become interactive touch.
Continuous development along with science and technology, occurred on the market and can finish prompt operation by gesture identification, but the technology of the realization gesture identification on the existing market is limited, at present, the gestures detection recognition methods of Trackpad mainly contains by the size of the capacitive sensing amount that detects Trackpad determines whether the touching object contacts or leave Trackpad, produce the combination of sequential, thereby realize different gesture operations, also having a kind of method is to confirm to touch method with gesture according to system's induction area, these all are difficult to satisfy requirements at the higher level effective and degree of accuracy, have stayed to people and can not enjoy more shortcoming easily.
[summary of the invention]
Technical matters to be solved by this invention is to provide a kind of method of recognizing gesture on infrared induction type electronic whiteboard, and is accurately efficient, finishes the prompt operation to machine.
The present invention solves the problems of the technologies described above by the following technical solutions:
A kind of method of recognizing gesture on infrared induction type electronic whiteboard comprises the steps:
Step 1: carry out the gesture identification classification first time according to touch objects quantity: if 1 touch objects then is identified as paintbrush, mouse, blackboard eraser gesture; If 2 touch objects then are identified as rotation, convergent-divergent gesture; If 3 or 3 above touch objects, then for drag, the page turning gesture; If be 1 touch objects earlier, then be 2 touch objects, then be identified as the right mouse button gesture;
Step 2: carry out the gesture classification second time according to the touch objects area, further distinguish concrete gesture kind;
Step 3: according to the physical coordinates of determining, distinguish accurate gesture, on the infrared exoelectron blank, realize the function of this gesture then by blank software.
The concrete grammar of identification right mouse button gesture is in the described step 1: if the touch objects number is initially 1, be 2 behind the 300ms at interval, its unbounded size system initially is one group of coordinate, then be two groups of coordinates, be identified as the right mouse button gesture when radius is for 50mm between two groups of coordinates.
Described step 2 comprises:
If the touch objects number is 1, have only one group of coordinate, its radius size is 0-5mm, then is identified as the paintbrush gesture;
If the touch objects number is 1, have only one group of coordinate, its radius size is 5-20mm, then is identified as mouse gestures;
If the touch objects number is 1, have only one group of coordinate, its radius size is the 20mm-infinity, then is identified as the blackboard eraser gesture;
Described step 3 comprises:
If the touch objects number is 2, two groups of coordinates are arranged, its unbounded size system, wherein one group of coordinate immobilizes or is approximate motionless, and the rotation amplitude of another group coordinate relative fixed coordinate is identified as rotate gesture during greater than flexible amplitude;
If the touch objects number is 2, two groups of coordinates are arranged, within a certain period of time, two groups of coordinates continue to increase in the difference of X-axis or Y-axis, then are identified as the amplification gesture;
If the touch objects number is 2, two groups of coordinates are arranged, within a certain period of time, two groups of coordinates continue to reduce in the difference of X-axis or Y-axis, then are identified as and dwindle gesture;
If the touch objects number is more than 3 or 3, within a certain period of time, touch objects remains unchanged substantially in the difference of X-axis or Y-axis, then is identified as to drag or the page turning gesture.
The invention has the advantages that: this gesture identification pattern is to discern the most full gesture at most at present on infrared blank, and the right mouse button gesture identification is the distinctive a kind of gesture of the present invention; Discrimination of the present invention is high and accurately, seldom appearance mistake is discerned.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is an infrared exoelectron whiteboard system structural representation of the present invention.
Fig. 2 is an infrared exoelectron whiteboard screen synoptic diagram of the present invention.
Fig. 3-the 1st, paintbrush gesture synoptic diagram among the present invention.
Fig. 3-the 2nd, mouse gestures synoptic diagram among the present invention.
Fig. 3-the 3rd, blackboard eraser gesture synoptic diagram among the present invention.
Fig. 3-the 4th drags the gesture synoptic diagram among the present invention.
Fig. 3-the 5th amplifies the gesture synoptic diagram among the present invention.
Fig. 3-the 6th dwindles the gesture synoptic diagram among the present invention.
Fig. 3-the 7th, rotate gesture synoptic diagram among the present invention.
Fig. 3-the 8th, right mouse button gesture synoptic diagram among the present invention.
Fig. 3-the 9th rolls up one page gesture synoptic diagram among the present invention.
Fig. 3-the 10th turns down one page gesture synoptic diagram among the present invention.
[embodiment]
Fig. 1 is an infrared exoelectron whiteboard system structural representation of the present invention.It is cooperated by infrared exoelectron blank 1, touch objects 2, blank software 3, computing machine 4 realizes.Corresponding in twos infrared lamp group 5 and the infrared ray receiving light group 6 of being placed with on the infrared exoelectron blank 1; Touch objects 2 is generally finger, also can be other opaque article, as long as sizableness does not exceed setting range and all can; Blank software 3 is housed in the computing machine 4, and blank software 3 receives and drives the gesture identification parameter interface of being submitted to, has made respective reaction, realizes the gesture identification function on infrared exoelectron blank 1.
The present invention at first carries out corresponding program setting to the identification of the quantity of touch objects, area size, trend and also sets in the lump discerning the respective reaction that the back machine should make.
So when starting total system, the corresponding simultaneously orderly infrared ray of infrared ray receiving light group of received of infrared ray that the infrared lamp group emission of infrared exoelectron blank is orderly, when touch objects is fallen Petting Area, touch objects stops that ultrared what and change information will forward in the computing machine, computing machine is to the quantity of object in the Petting Area, the area size, physical coordinates is analyzed, calculate and identification, send the gesture identification interface parameters to blank software simultaneously, blank software receives the interface parameters that the gesture identification that provides is provided, make corresponding reaction then, thereby realize prompt operation machine.
How the physical coordinates that the following describes the touch thing calculates, and Fig. 2 is an infrared exoelectron whiteboard screen synoptic diagram of the present invention.An operating point in the screen has blocked four infrared tubes.The coordinate figure of uploading for X-axis is Xi-2, Xi+2.Y-axis in like manner.
Each computing machine can scan X, the Y direction once is called a frame, and every frame has comprised two infrared tube sequence numbers:
X1＝X1H*0x100+X1L????X2＝X2H*0x100+X2L
Y1＝Y1H*0x100+Y1L????Y2＝Y2H*0x100+Y2L
(OxFF represents that signal is the strongest.The infrared tube of this sequence number is not blocked.OxOO represents no signal, represents that the infrared tube of this sequence number is blocked fully)
Say the recognition methods of describing bright each gesture kind in detail below:
(1) paintbrush gesture
Shown in Fig. 3-1, concrete operation method: when electronic whiteboard software Board pattern, display mode, window mark pattern and playback,, then be identified as the paintbrush function automatically with a finger touch electronic whiteboard plate face; Concrete recognition methods is: computing machine is measured touch objects and is had only one group of coordinate figure, promptly has only a touch thing, and the size of operating point then is judged to be the paintbrush gesture in the scope (radius size is 0-5mm) that the paintbrush gesture is set.
(2) mouse gestures
Shown in Fig. 3-2, concrete operation method: when electronic whiteboard software Board pattern, display mode, window mark pattern and playback, refer to that with two fingers tripe is close to the touch pad face, then be identified as mouse function automatically; Concrete recognition methods is: computing machine is measured touch objects and is had only one group of coordinate figure, promptly has only a touch thing, and the size of operating point then is judged to be mouse gestures in the scope (radius size is 5-20mm) that the paintbrush gesture is set.
(3) blackboard eraser gesture
Shown in Fig. 3-3, concrete operation method: when electronic whiteboard software Board pattern, display mode, window mark pattern and playback,, then be identified as the blackboard eraser function automatically with palm touch pad face; Concrete recognition methods is: computing machine is measured touch objects and is had only one group of coordinate figure, promptly have only a touch thing, and the size of operating point is in the scope (radius size is the 20mm-infinity) that the paintbrush gesture is set, and X2-X1, the value of Y2-Y1 remains unchanged substantially, then is judged to be the blackboard eraser gesture.
(4) drag gesture
As shown in Figure 3-4, concrete operation method: when electronic whiteboard software Board pattern,, move then, then be identified as automatically and drag page function with finger (preferably 5 fingers) fork touch pad face more than 3; Concrete recognition methods is: computing machine is measured touch objects three groups of coordinate figures (if 5 fingers then are five groups of coordinates), and size is in the scope of setting, and X2-X1, and the value of Y2-Y1 is constant substantially, then is judged to be the gesture that drags the page.
(5) amplify/dwindle gesture
Shown in Fig. 3-5 and Fig. 3-6, concrete operation method: when blank software Board pattern, window mark pattern and playback, display position with object in the finger touches plate face, maintain static then, another root finger is in last finger of distance 20CM scope, forward the deviating from or move near direction an of finger, then automatically this object is amplified or reduction capability; Concrete recognition methods is: computing machine is measured touch objects two groups of coordinate figures, within a certain period of time, significantly X2-X1 is arranged, and the variation that Y2-Y1 continues increase or dwindles then is judged to be and amplifies/dwindle gesture.
(6) rotate gesture
Shown in Fig. 3-7, concrete operation method: when blank software Board pattern, window mark pattern and playback, display position with object in the finger touches plate face, maintain static then, another root finger moves around last finger, then automatically to the function that is rotated of this object.
Concrete recognition methods is: computing machine is measured touch objects two groups of coordinate figures, its unbounded size system, and wherein one group of coordinate immobilizes or is approximate motionless, and the rotation amplitude of another group coordinate relative fixed coordinate is identified as rotate gesture during greater than flexible amplitude.Around initial point.All in four quadrants, the increasing or decreasing of X2-X1 and Y2-Y1 all is reverse in each quadrant in user's operation.
| X2-X1 (operating between up time) | Y2-Y1 (operating between the inverse time) | |
| First quartile | Increase progressively | Successively decrease |
| Second quadrant | Successively decrease | Increase progressively |
| Third quadrant | Increase progressively | Successively decrease |
| Four-quadrant | Successively decrease | Increase progressively |
If operate between the inverse time, then incremented/decremented is then reverse.Thereby, according to whether there being a fixing value to judge whether to have rotate gesture in two coordinates.Successively decrease according to increasing progressively of X2-X1 in a period of time and Y2-Y1 and to judge whether the action of a rotation.Determine that according to the quadrant of user's operation and the direction of its incremented/decremented this is a gesture that turns clockwise or the gesture that is rotated counterclockwise.
(7) right mouse button gesture
Shown in Fig. 3-8, concrete operation method: under the Windows pattern, with a finger touches plate face, maintain static then, another finger is in last finger of distance 5CM scope, and quick Contact plate face is also upspring, and then is identified as the right mouse button function automatically; Concrete recognition methods is: computing machine is measured the touch objects number and is initially 1, is 2 behind the 300ms at interval, and its unbounded size system initially is one group of coordinate, then is two groups of coordinates, is identified as the right mouse button gesture when radius is for 50mm between two groups of coordinates.
(8) page turning gesture
Shown in Fig. 3-9 and Fig. 3-10, concrete operation method: when electronic whiteboard software Board pattern,, move up or down then, then be identified as automatically and drag page function with finger (preferably 5 fingers) fork touch pad face more than 3; Concrete recognition methods is: computing machine is measured touch objects three groups of coordinate figures (if 5 fingers, then be five groups of coordinates), size is in the scope of setting, and X2-X1, the value of Y2-Y1 is constant substantially, and the direction of page turning is to judge according to the variation tendency of coordinate figure.The gesture that drags with page turning is not have to distinguish, and the two can only select one to use, and can not have use simultaneously.
Gesture identification pattern of the present invention is to discern the most full gesture at most at present on infrared blank, and the right mouse button gesture identification is the distinctive a kind of gesture of the present invention; Discrimination of the present invention is high and accurately, seldom appearance mistake is discerned.
Claims (4)
1. the method for a recognizing gesture on infrared induction type electronic whiteboard is characterized in that: comprise the steps:
Step 1: carry out the gesture identification classification first time according to touch objects quantity: if 1 touch objects then is identified as paintbrush, mouse, blackboard eraser gesture; If 2 touch objects then are identified as rotation, convergent-divergent gesture; If 3 or 3 above touch objects, then for drag, the page turning gesture; If be 1 touch objects earlier, then be 2 touch objects, then be identified as the right mouse button gesture;
Step 2: carry out the gesture classification second time according to the touch objects area, further distinguish concrete gesture kind;
Step 3: according to the physical coordinates of determining, distinguish accurate gesture, on the infrared exoelectron blank, realize the function of this gesture then by blank software.
2. the method for a kind of recognizing gesture on infrared induction type electronic whiteboard as claimed in claim 1, it is characterized in that: the concrete grammar of identification right mouse button gesture is in the described step 1: if the touch objects number is initially 1, it is 2 behind the 300ms at interval, its unbounded size system, it initially is one group of coordinate, then be two groups of coordinates, be identified as the right mouse button gesture when radius is for 50mm between two groups of coordinates.
3. the method for a kind of recognizing gesture on infrared induction type electronic whiteboard as claimed in claim 1, it is characterized in that: described step 2 comprises:
If the touch objects number is 1, have only one group of coordinate, its radius size is 0-5mm, then is identified as the paintbrush gesture;
If the touch objects number is 1, have only one group of coordinate, its radius size is 5-20mm, then is identified as mouse gestures;
If the touch objects number is 1, have only one group of coordinate, its radius size is the 20mm-infinity, then is identified as the blackboard eraser gesture;
4. the method for a kind of recognizing gesture on infrared induction type electronic whiteboard as claimed in claim 1, it is characterized in that: described step 3 comprises:
If the touch objects number is 2, two groups of coordinates are arranged, its unbounded size system, wherein one group of coordinate immobilizes or is approximate motionless, and the rotation amplitude of another group coordinate relative fixed coordinate is identified as rotate gesture during greater than flexible amplitude;
If the touch objects number is 2, two groups of coordinates are arranged, within a certain period of time, two groups of coordinates continue to increase in the difference of X-axis or Y-axis, then are identified as the amplification gesture;
If the touch objects number is 2, two groups of coordinates are arranged, within a certain period of time, two groups of coordinates continue to reduce in the difference of X-axis or Y-axis, then are identified as and dwindle gesture;
If the touch objects number is more than 3 or 3, within a certain period of time, touch objects remains unchanged substantially in the difference of X-axis or Y-axis, then is identified as to drag or the page turning gesture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010169859 CN101813995A (en) | 2010-05-12 | 2010-05-12 | Method for recognizing gesture on infrared induction type electronic whiteboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010169859 CN101813995A (en) | 2010-05-12 | 2010-05-12 | Method for recognizing gesture on infrared induction type electronic whiteboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101813995A true CN101813995A (en) | 2010-08-25 |
Family
ID=42621265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010169859 Pending CN101813995A (en) | 2010-05-12 | 2010-05-12 | Method for recognizing gesture on infrared induction type electronic whiteboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101813995A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012740A (en) * | 2010-11-15 | 2011-04-13 | 中国科学院深圳先进技术研究院 | Man-machine interaction method and system |
| CN102073405A (en) * | 2010-11-30 | 2011-05-25 | 广东威创视讯科技股份有限公司 | Image zooming and rotating judgment method |
| CN102542265A (en) * | 2011-12-26 | 2012-07-04 | 广东威创视讯科技股份有限公司 | Multi-touch eraser identification method based on camera positioning and device therefor |
| CN102591517A (en) * | 2010-12-17 | 2012-07-18 | Lg电子株式会社 | Mobile terminal and method for controlling the same |
| WO2012129902A1 (en) * | 2011-03-31 | 2012-10-04 | Shenzhen Byd Auto R&D Company Limited | Method of identifying multi-touch rotation gesture and device using the same |
| CN103713756A (en) * | 2012-09-29 | 2014-04-09 | 联想(北京)有限公司 | Method for recognizing objects on touch screen and electronic equipment applying method |
| CN103853473A (en) * | 2012-12-03 | 2014-06-11 | 联想(北京)有限公司 | Information transmission method, information transmission device and electronic equipment |
| CN104583904A (en) * | 2012-10-31 | 2015-04-29 | 奥迪股份公司 | Method for inputting a control command for a component of a motor vehicle |
| CN104935855A (en) * | 2014-03-17 | 2015-09-23 | 京瓷办公信息系统株式会社 | Cue Point Control Apparatus and Recording Medium That Facilitate Search of Cue Point during Playback |
| CN105812978A (en) * | 2016-04-06 | 2016-07-27 | 贵州翔通科技实业有限公司 | Earphone touch control method, earphone and touch control system |
| WO2016131364A1 (en) * | 2015-02-17 | 2016-08-25 | Yu Albert Wang | Multi-touch remote control method |
| CN106131505A (en) * | 2016-08-23 | 2016-11-16 | 苏州龙诺法信息系统工程有限公司 | Cloud plate image mosaic and recording method and system |
| CN106447864A (en) * | 2016-10-14 | 2017-02-22 | 郑州云海信息技术有限公司 | Non-contact unlocking method and system |
| CN109032432A (en) * | 2018-07-17 | 2018-12-18 | 深圳市天英联合教育股份有限公司 | A kind of method, apparatus and terminal device of lettering pen category identification |
| CN109830129A (en) * | 2019-03-26 | 2019-05-31 | 深圳市千新科技实业有限公司 | A kind of plug-type intelligent electronic white board black board teaching system |
-
2010
- 2010-05-12 CN CN 201010169859 patent/CN101813995A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012740B (en) * | 2010-11-15 | 2015-10-21 | 中国科学院深圳先进技术研究院 | Man-machine interaction method and system |
| CN102012740A (en) * | 2010-11-15 | 2011-04-13 | 中国科学院深圳先进技术研究院 | Man-machine interaction method and system |
| CN102073405A (en) * | 2010-11-30 | 2011-05-25 | 广东威创视讯科技股份有限公司 | Image zooming and rotating judgment method |
| CN102073405B (en) * | 2010-11-30 | 2012-12-05 | 广东威创视讯科技股份有限公司 | Image zooming and rotating judgment method |
| CN102591517A (en) * | 2010-12-17 | 2012-07-18 | Lg电子株式会社 | Mobile terminal and method for controlling the same |
| WO2012129902A1 (en) * | 2011-03-31 | 2012-10-04 | Shenzhen Byd Auto R&D Company Limited | Method of identifying multi-touch rotation gesture and device using the same |
| CN102542265B (en) * | 2011-12-26 | 2014-12-24 | 广东威创视讯科技股份有限公司 | Multi-touch eraser identification method based on camera positioning and device therefor |
| CN102542265A (en) * | 2011-12-26 | 2012-07-04 | 广东威创视讯科技股份有限公司 | Multi-touch eraser identification method based on camera positioning and device therefor |
| CN103713756A (en) * | 2012-09-29 | 2014-04-09 | 联想(北京)有限公司 | Method for recognizing objects on touch screen and electronic equipment applying method |
| CN103713756B (en) * | 2012-09-29 | 2016-10-05 | 联想(北京)有限公司 | Object identification method and the electronic equipment of application the method on a kind of touch screen |
| CN104583904A (en) * | 2012-10-31 | 2015-04-29 | 奥迪股份公司 | Method for inputting a control command for a component of a motor vehicle |
| CN104583904B (en) * | 2012-10-31 | 2018-06-26 | 奥迪股份公司 | For inputting the method to the control command of automotive component |
| US9612655B2 (en) | 2012-10-31 | 2017-04-04 | Audi Ag | Method for inputting a control command for a component of a motor vehicle |
| CN103853473B (en) * | 2012-12-03 | 2017-09-22 | 联想(北京)有限公司 | Information transferring method, device and electronic equipment |
| CN103853473A (en) * | 2012-12-03 | 2014-06-11 | 联想(北京)有限公司 | Information transmission method, information transmission device and electronic equipment |
| CN104935855A (en) * | 2014-03-17 | 2015-09-23 | 京瓷办公信息系统株式会社 | Cue Point Control Apparatus and Recording Medium That Facilitate Search of Cue Point during Playback |
| CN104935855B (en) * | 2014-03-17 | 2017-12-19 | 京瓷办公信息系统株式会社 | Prompting point control device and prompting point control method |
| WO2016131364A1 (en) * | 2015-02-17 | 2016-08-25 | Yu Albert Wang | Multi-touch remote control method |
| CN105812978A (en) * | 2016-04-06 | 2016-07-27 | 贵州翔通科技实业有限公司 | Earphone touch control method, earphone and touch control system |
| CN105812978B (en) * | 2016-04-06 | 2019-06-07 | 贵州翔通科技实业有限公司 | Earphone method of toch control, earphone and touch control system |
| CN106131505A (en) * | 2016-08-23 | 2016-11-16 | 苏州龙诺法信息系统工程有限公司 | Cloud plate image mosaic and recording method and system |
| CN106131505B (en) * | 2016-08-23 | 2022-01-07 | 苏州龙诺法信息系统工程有限公司 | System for realizing cloud board image splicing and recording method |
| CN106447864A (en) * | 2016-10-14 | 2017-02-22 | 郑州云海信息技术有限公司 | Non-contact unlocking method and system |
| CN109032432A (en) * | 2018-07-17 | 2018-12-18 | 深圳市天英联合教育股份有限公司 | A kind of method, apparatus and terminal device of lettering pen category identification |
| CN109830129A (en) * | 2019-03-26 | 2019-05-31 | 深圳市千新科技实业有限公司 | A kind of plug-type intelligent electronic white board black board teaching system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101813995A (en) | Method for recognizing gesture on infrared induction type electronic whiteboard | |
| US10955983B2 (en) | Interaction sensing | |
| US10042446B2 (en) | Interaction modes for object-device interactions | |
| US9092129B2 (en) | System and method for capturing hand annotations | |
| US8614664B2 (en) | Multi-touch multi-dimensional mouse | |
| CN114690853B (en) | Interaction method and interaction panel | |
| CN101482797B (en) | Method for implementing drag-and-draw function on touch control induction equipment | |
| US20230057020A1 (en) | Meeting interaction system | |
| US20160266719A1 (en) | Touch method and touch processor | |
| CN102467261A (en) | Method of combining at least two touch control signals into a computer system, and computer mouse | |
| CN103365485A (en) | Optical Touch Sensing Device | |
| CN102662511A (en) | Method and terminal for carrying out control operation through touch screen | |
| CN102073417A (en) | Electronic device with infrared touch identification function | |
| KR20180112873A (en) | Interoperable modes for object-to-device interoperability | |
| US20180059806A1 (en) | Information processing device, input control method for controlling input to information processing device, and computer-readable storage medium storing program for causing information processing device to perform input control method | |
| US9542040B2 (en) | Method for detection and rejection of pointer contacts in interactive input systems | |
| CN201383135Y (en) | Multiple touch control interactive device | |
| Sanghi et al. | A fingertip detection and tracking system as a virtual mouse, a signature input device and an application selector | |
| CN204595673U (en) | A kind of electronic equipment | |
| CN204270260U (en) | A kind of mobile device | |
| CN105528059A (en) | A three-dimensional gesture operation method and system | |
| CN104142732A (en) | Consecutive input method | |
| CN203376719U (en) | Huge CCD optical touch screen | |
| CN112363644A (en) | Infrared imaging device and gesture recognition method thereof | |
| CN107562232A (en) | A kind of plane mouse and the equipment with plane mouse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100825 |