CN107305431A - Projection demonstration device and method based on gesture operation - Google Patents
Projection demonstration device and method based on gesture operation Download PDFInfo
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- CN107305431A CN107305431A CN201610260763.9A CN201610260763A CN107305431A CN 107305431 A CN107305431 A CN 107305431A CN 201610260763 A CN201610260763 A CN 201610260763A CN 107305431 A CN107305431 A CN 107305431A
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- 230000009471 action Effects 0.000 claims abstract description 9
- 230000003321 amplification Effects 0.000 claims abstract description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 6
- 210000003811 finger Anatomy 0.000 claims description 86
- 210000005224 forefinger Anatomy 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 7
- 210000003813 thumb Anatomy 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 238000002372 labelling Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
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- 230000000386 athletic effect Effects 0.000 description 1
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- 238000012790 confirmation Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/014—Hand-worn input/output arrangements, e.g. data gloves
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention discloses a kind of projection demonstration apparatus and method based on gesture operation, finger tip component and palm component it is wearable in user on hand, finger tip component is arranged on a finger, refer to as guiding, finger tip component at least includes fingertip motions attitude sensor, function key module can include finger tip function key or palm function key, and finger tip component, function key module are electrically connected by connecting circuit and power supply, data processing module and communication module.The exercise attitudes sensor that the present invention is set by finger tip component, the direction of motion and movement velocity of finger can be detected, so as to calculate the movement track parameters of finger, binding function key module, the media different demo functions required in projection demonstration can be realized by application software, the demenstration method of the present invention is identified based on the gesture for meeting user's custom, so as to which correspondence produces demostrating action, such as click, dragging, amplification/diminution or mark, using conveniently, Consumer's Experience is excellent naturally.
Description
Technical field
The present invention relates to projection demonstration technical field, especially a kind of projection demonstration device and side based on gesture operation
Method.
Background technology
Projection demonstration is very universal in current work and life, and either even family of unit, school, all can
Come work exchange, teaching demonstration and entertainment applications by the way of projection.But, the projection demonstration of the current overwhelming majority is still
Using traditional laser pen, indicate to explain the orientation of content by laser bright spot, and simple page turning work(is realized by button
Energy；The laser pen for having minority also possesses the mouse function of computer, but can not bring substance to Consumer's Experience when using
Improvement.Also there are some to research and propose at present to carry out the scheme such as picture catching and laser bright spot auxiliary positioning to expand using video camera
The interactive function during projection demonstration, but actual increase and the complexity of software algorithm due to hardware cost are opened up, causes these
Theory and technology does not obtain extensive accreditation with promoting, and can not realize the random Consumer's Experience of nature.
The content of the invention
There is provided one kind is rational in infrastructure, easy to operate feature-rich for limitation of the invention for above-mentioned performance technology
The projection demonstration device and method based on gesture operation, the characteristics of device possesses wearable device allow user in reality
Border obtains the convenient Consumer's Experience of nature when operating.
The technical solution adopted by the present invention is as follows：
A kind of projection demonstration device based on gesture operation, finger tip component and palm component it is wearable in user on hand, finger tip
Component is arranged on a finger, is referred to as guiding, and finger tip component at least includes fingertip motions attitude sensor, function key
Module can include finger tip function key or palm function key, and finger tip component, function key module are by connecting circuit and power supply, data
Processing module is electrically connected with communication module.
It is used as the further improvement of above-mentioned technical proposal：
The finger tip component includes fingertip motions attitude sensor and finger tip function key, and fingertip motions attitude sensor may be provided at
Fingertip location, at least one finger tip function key is arranged on finger side or referred to interior.
The palm component include power supply, data processing module and communication module, palm function key be arranged on the palm of the hand or
The back of the hand position.
The finger tip component is worn on finger by fingerstall or fixture, and the palm component is worn by adjustable bandage
It is worn on palm.
The finger tip function key can be opened with palm function key using film key, pressure type sensor or capacitive sensing
Close.
A kind of projection demonstration method based on gesture operation that said apparatus is carried out, guiding, which refers to, to be indicated screen, is referred to
Fingertip motions attitude sensor in sharp component is caught to the kinematic parameter that guiding refers to be moved with analysis, guide screen cursor
Dynamic, by carrying out independent operation to the difference in functionality key in function key module, or guiding refers to the collective effect with function key, with
Realize calibration and various demostrating actions.
It is used as the further improvement of above-mentioned technical proposal：
Also include image boundary calibration method, the guiding of user refers to the border lateral or longitudinal movement along view field, or
Person moves along screen diagonal is oblique, or is moved according to the track of screen prompt, and data processing module or application are soft
Part is handled by the mutual proportional numerical value to projected image P, projection screen S and the packet sizes of finger trace F tri-, sets up finger motion
With the position relationship of screen border.
Also include mask method, the gesture that holds a pen that user is brought together using thumbtip and forefinger tip is pressed using thumb
The finger tip function key of index finger tip, now data processing module or application software follow the trail of the movement locus of forefinger, and are drilled in projection
Show and correspondence track is drawn out in the page, realize word or figure labeling.
Also include page turning method, user stretches forefinger, on the premise of triggering or without Trigger Function key, to the left side
Or forefinger is quickly brandished on the right, you can realize the front and rear page page-turning function of the projection demonstration page.
Also include inductive operation method, user slides finger on capacitance-sensitive switch, can by application software definition
To produce page turning, amplification, diminution, advance, retrogressing, the effect for adjusting volume.
The different object types shown for screen, same gesture can be defined as being directed to being particularly shown object
Different-effect.
Beneficial effects of the present invention are as follows：
The exercise attitudes sensor that the present invention is set by finger tip component, can detect the direction of motion and motion speed of finger
Degree, so as to calculate the movement track parameters of finger, carrying out data to sensor by data processing module or application software adopts
Collection and analyzing and processing, each function key of binding function key module, corresponding application software can on the smart machines such as computer
To realize different demo functions that media is required in projection demonstration, demenstration method of the invention is based on meeting user
The gesture of custom is identified, so that correspondence produces demostrating action, such as click, dragging, amplification/diminution or mark.The present invention
Demenstration method it is convenient using nature, Consumer's Experience is excellent.
The present invention can allow user quick accurate according to the demonstration mode knot oneself set during projection demonstration
The intention that project content accurately gives expression to demonstration is closed, demonstrating effect is largely enhanced.For example for Doctype matchmaker
Body demonstration, it is necessary to explain content temporald eixis when, it is possible to achieve common laser pen bright spot movement indicate, can also be real
The mark of active line bar and square frame；, can also during to explanation content annotation, it is possible to achieve the note of handwriting and Freehandhand-drawing diagram
The word and diagram annotated is moved, changed and removed；It can also realize the page-turning function of projected document simultaneously.For
The demonstration of picture/mb-type media, can increase the function of realizing image scaling on the demo function of Doctype media.For
The demonstration of audio frequency and video type of media, can increase on the demo function of Doctype media realization play, pause, stop and
The function of volume control.It is interactive so as to effectively enhance demonstration, obtain more preferable Consumer's Experience.
Brief description of the drawings
Fig. 1 is the schematic diagram of the device of the present invention（The back of the hand view）.
Fig. 2 is the schematic diagram of the device of the present invention（Centre of the palm view）.
Fig. 3 is the schematic diagram of finger tip component in Fig. 1.
Fig. 4 is the schematic diagram of embodiment two.
Fig. 5 is the schematic diagram of embodiment three.
Fig. 6 is use state schematic diagram of the invention.
Fig. 7 is projected image boundary alignment method schematic diagram of the invention.
Fig. 8 is user's play position change schematic diagram of the invention.
Fig. 9 is projected image border rapid fine adjustment method schematic diagram.
Figure 10 is mark gesture schematic diagram of the invention.
Figure 11 is page turning gesture schematic diagram of the invention.
In figure：1st, fingertip motions attitude sensor；2nd, function key module；21st, finger tip function key；22nd, palm function key；
23rd, capacitive sensing band；3rd, finger tip component；4th, circuit is connected；5th, power supply；6th, data processing module；7th, communication module.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is illustrated.
Projection demonstration device of the present invention based on gesture operation includes fingertip motions attitude sensor 1, function key
Module 2, connection circuit 4, power supply 5, data processing module 6, communication module 7, module alleged by the above are to preferably state this
Invention, and not uniquely determine or corresponding to physical hardware.Fingertip motions attitude sensor 1 is arranged on finger fingertip, can use
Commercially available MPU6000 series or MPU9000 serial model No. sensors, to detect the direction of motion and movement velocity of finger in real time
Numerical value.Function key module 2 can be arranged on the plurality of positions of hand, such as finger tip function key 21 or palm function key 22, both may be used
With using conventional film key switch, it would however also be possible to employ the conventional contact or sense such as capacitance-sensitive switch, capacitive sensing band
Inductive switch form, is selected or switched different during projection demonstration to realize with the pressing or trigger action that are carried out by finger to it
Function.Fingertip motions attitude sensor 1 is connected with function key module 2 by being connected circuit 4 with data processing module 6, connection
Circuit 4 can set up electrical connection using wired or wireless way.Power supply 5 includes battery, battery charging and discharging and power management
And protection circuit, battery can use lithium battery, be responsible for providing reliable and stable working power to whole device.Data processing mould
Block 6 is responsible for that various kinds of sensors signal in sensor device is converted into corresponding data message in real time, then passes through communication module 7
Data are sent to corresponding application software on the smart machines such as computer in real time, application software is as needed further to collection
To data make relevant treatment and application.Communication module 7 is using wirelessly or non-wirelessly communicating, and communication module 7 is not necessarily physics
Integrated communicaton function also is understood as communication module 7 in upper independent part, data processing module 6.
Embodiment one：
As shown in Figure 1 to Figure 3, the present embodiment is made up of finger tip component 3 with palm component, and finger tip component 3 is arranged at one
On finger, refer to as bearing directing, preferably forefinger（In this patent document forefinger described below be in order to be more convenient description,
Any one finger can be referred to by dressing the present apparatus as projection orientation guiding）, carrier material can be yarn fabric, plastics or
Rubber, appearance forrns can be fingerstall or fixture, and finger tip component 3 includes fingertip motions attitude sensor 1 and finger tip function key 21,
It can be arranged on common or flexible PCB, and be electrically connected by connecting circuit 4 with data processing module 6, fingertip motions
Attitude sensor 1 may be provided at nail position, and finger tip function key 21 may be provided at finger side（Close to thumb side）Or in referring to（Refer to
First opposite side）, be provided with it is one or more, the present embodiment be two, finger tip function key 21 can so be entered using thumb
Row pressing is triggered.Palm component can be using adjustable or flexible bandage as carrier, to adapt to handedness
Or the use crowd of different hand sizes, in the back of the hand position, power supply 5, data processing module 6 and communication module 7 can be set,
Centre of the palm position, can set palm function key 22, so, it is possible to use middle finger, the third finger enter with little finger of toe to palm function key 22
Row triggering.Certainly, palm function key 22 can also be arranged on the back of the hand position, it can also be touched using the finger of another hand
Hair.
The invention is not restricted to fingerstall and the carrier of bandage, without carrier, directly dressed using flexible PCB, or parcel
Structure in whole full glove, is the carrier fashion that this patent can be realized.
Embodiment two：
The finger tip function key 21 of the present invention can use film key or pressure type sensor with palm function key 22, using pressing
Triggered, three key switches are arranged in the centre of the palm in such as Fig. 2 of embodiment one, the pressing of three fingers is corresponded to respectively.Certainly
Three are not necessarily required to, is set one or more.As shown in figure 4, these three key switches are arranged into the present embodiment
Position in middle finger, the nameless finger with little finger of toe, is clothed on each finger, such digital flexion presses the centre of the palm using fingerstall,
Can be with Trigger Function key.
Embodiment three：
The finger tip function key 21 of the present invention can also use capacitance switch or capacitive sensing band with palm function key 22, pass through sense
It should be triggered or be controlled.As shown in figure 5, the present embodiment sets capacitive sensing band 23, capacitive sensing band 23 in the centre of the palm or the back of the hand
The finger quantity sensed can be not only identified, for example, be that single finger senses, or two or three；May be used also
Be identified with other actions to finger by software, such as upward slide downward, click double-click.In this patent document
Function key is not strictly limited to the switch of opening and closing signal, can produce the gradual change of analog signal or data signal.
It is of the present invention to carry out the projection demonstration method based on gesture operation using said apparatus, include projected image
Rapid fine adjustment method and demonstration operating method after the image boundary calibration method in region, user's change in location etc..
During real work, the document for needing to project is opened from computer either other kinds of smart machine, is used
Projecting apparatus, giant-screen or other kinds of projector equipment carry out normal projection operation, then start installed in computer or
Person is application software supporting with the present invention on other kinds of smart machine.After application software initiated, projection can be obtained automatically
The currently used resolution ratio of equipment, then shows screen cursor in the picture area of projection.The conventional use hand of the present invention
Gesture schematic diagram is as shown in fig. 6, device of the present invention is worn on hand by user, and forefinger, which stretches out, points to screen, captures
Screen cursor, now moves or deflects finger, is caught and analysis, guiding by the kinematic parameter of fingertip motions attitude sensor 1
Cursor is moved, and coordinates function key to carry out corresponding operating, it is possible to achieve various demostrating actions.
The image boundary calibration method of the present invention is used to set up finger motion and the position relationship of screen border.Such as Fig. 7 institutes
Show, the image P shown on projection screen S size is that projected image amplifies presentation according to a certain percentage by projector equipment
, because application software supporting with the present invention on computer either other kinds of smart machine can obtain throwing
The resolution ratio of shadow image, the resolution sizes are the number of pixel, and corresponding is the boundary dimensions of projected image, i.e. perspective view
The horizontal size and vertical dimension of picture are arranged in by a how many pixel respectively.And the resolution ratio of projection screen image be with
Projected image identical, is simply amplified, i.e. the unit area of pixel is exaggerated according to a certain percentage.When starting calibration,
Calibration starting cursor is located at line segment a1 left end point, and user stretches out forefinger and points to starting cursor point, while using other fingers
Pin function button, represent to proceed by the measuring and calculating work of projected boundary, the Boundary Moving forefinger along view field slowly,
Cursor point can follow the movement of forefinger to draw out the frame of view field automatically.When cursor point is moved to line segment a1 right endpoints,
The horizontal size measuring and calculating of projection screen image is completed, with the present invention on computer either other kinds of smart machine
The horizontal range a2 that supporting application software is moved according to forefinger, can calculate forefinger and often move a size in the horizontal direction
Unit is equal to the horizontally arranged size of pixel of how many projected images；Similarly, cursor point is dragged from line segment b1 according to forefinger
The vertical travel distance b2 of end points to line segment b1 lower extreme points can calculate forefinger and often move a dimensional units in vertical direction
Pixel equal to how many projected images is arranged vertically size.According to above-mentioned principle, when completion projection screen boundary dimensions
Measuring and calculating, can also obtain the mutual proportional numerical value of projected image P, projection screen S and the packet sizes of finger trace F tri-.
Actually, it would however also be possible to employ diagonal move mode disposably calculates the boundary dimensions of projection screen, i.e. forefinger
Dragging cursor point is diagonally moved to line segment b1 lower extreme points from line segment a1 left end points, horizontal range and hang down that forefinger is moved
Straight distance represents the horizontally arranged size of pixel of projected image and the border chi of vertical arrangement size, i.e. projection screen respectively
It is very little.
After projected image boundary alignment is completed, finger just sets up corresponding relation with screen picture, and finger is to draw
Lead screen cursor to move, if user's finger lifts the cursor for pointing to screen and stops or press and be corresponding again after putting down
After function key, you can confirm as capturing cursor again.
The rapid fine adjustment method of the present invention is used for the weight to projection screen boundary dimensions after being changed in user position
New definition with it is quickly calibrated, user often may walk up and down in area of display, if with the distance between screen S or side
Position angle change calculates obtained initial proportion number than larger when now finger rotation or mobile proportional numerical value with calibrating before
The difference of value can exceed error allowed band, cause cursor orientation range to produce deviation.From figure 8, it is seen that when user A,
When tri- regions of B, C carry out projection demonstration, because present position is different with angle relative to the distance of projection screen, finger movement
Distance or the proportional numerical value of angle a, b, c and projection screen be also different, i.e., in tri- regions of A, B, C, user's finger
Displacement a, b, c is equal to the horizontal size of projection screen respectively.According to the correlation theorem of similar triangles, can obtain a,
Relation between b, c three is b< a <C, it is assumed that user is the projection screen boundary alignment carried out in a-quadrant, that
In B Area Demos, demonstration scope demonstrates scope by beyond the bounds of whole projection screen, and in C Area Demos
The bounds of whole projection screen will be can not meet.At this time, it may be necessary to which user is presently in presentation process according to oneself
Play position can be at any time rapid fine adjustment oneself and projection screen proportional numerical value, so as to satisfaction demonstration model as far as possible
The bounds enclosed with whole projection screen coincide substantially, that is, needs to use rapid fine adjustment method to reposition.
As shown in figure 9, when finding that cursor can not be accurately positioned after user position is moved, you can with using the work(of setting
Energy button starts rapid fine adjustment program, and application software shows the calibration figure for presetting resolution ratio in the edge of projection screen
Sample, user stretches out forefinger and simultaneously points to starting cursor point, and corresponding function button can be selected to represent confirmation, slowly along school
The line segment movement forefinger of quasi- pattern, cursor point can be followed the movement of forefinger to be finely tuned with completed percentage automatically and be operated.Similarly, calibration figure
Sample can also use the line segment of diagonal form.Complete after ratio fine setting operation, user is near current presentation position
With regard to demonstration scope can be allowed to be matched with the bounds of whole projection screen in one region.
When carrying out projection demonstration, the new projection page is shown every time, application software can show one in the projected picture upper left corner
The vignette mark of individual light color.User only needs to stretching forefinger and points to the cursor point, slightly stops or utilize the selection of other fingers
Trigger Function key, vignette mark follows the movement locus of forefinger and moved with regard to that can light；If user is not desired to continuation, cursor is determined
Position demonstration, then release function key, the cursor lighted stops moving and being automatically restored to the vignette mark of light color immediately, determining next time
Position demonstration only needs to repeat aforesaid operations flow.User can simulate click action in defined location continuous several times,
Such as forefinger does stamp point action, and fingertip sensor gathers the motor message, and software is identified as clicking on, then it is right on screen to trigger
Answer the menu or button of position.User can also press a certain function key, while forefinger is moved, you can to drag screen
On object, realize dragging effect.
When needing to be labeled in projection demonstration, user can use the gesture that holds a pen such as Figure 10, by thumbtip with
Forefinger tip is brought together, and the finger tip function key 21 of index finger tip is pressed using thumb, and now software follows the trail of the movement locus of forefinger, and
Correspondence track is drawn out in projected picture, the mark function such as word or picture is realized.The finger tip function key can also be double-clicked
21, switch pencil pattern or rubber pattern etc..
When needing to realize page turn over operation in projection demonstration, as shown in figure 11, user stretches forefinger, or Trigger Function
Key, then quickly brandishes forefinger to the left side or the right, you can realize lower one page or page up page turning work(of the projection demonstration page
Energy.
Application software can recognize the type of projected document, if the content of projection is the document of picture format, pass through
Function key is specified in triggering, and amplification and the reduction capability of image are realized according to the function button defined in advance by setting,
The reduction of picture size can be realized by Trigger Function key.Equally, if the content of projection is the document of audio frequency and video form,
The functions such as broadcasting, pause, stopping and volume control can be realized by Trigger Function key.
When the capacitive sensing band 23 in using such as embodiment three, aforesaid operations only need to slide hand on capacitive sensing band 23
Refer to, amplification, diminution, advance, retrogressing, regulation volume, page turning and other effects can be produced by software definition.
The present invention is by being arranged on the athletic posture sensor and design of finger tip in multiple function keys of palm or finger tip, energy
The enough fit applications software in the way of discrete or combination realizes diversified projection demonstration effect, therefore, although the present invention is logical
Cross specific embodiment and illustrate citing, but it will be appreciated by those skilled in the art that, without departing from the present invention,
Various conversion and equivalent substitute can also be carried out to the present invention.In addition, for particular condition or material, can be done respectively to the present invention
Modification is planted, without departing from the scope of the present invention.So, the present invention is not limited to disclosed specific implementation use-case, and should wrap
Include the whole embodiments fallen within the scope of the appended claims.
Claims (11)
1. a kind of projection demonstration device based on gesture operation, it is characterised in that：Finger tip component（3）With palm component it is wearable in
User on hand, finger tip component（3）It is arranged on a finger, refers to as guiding, finger tip component（3）At least include finger tip
Exercise attitudes sensor（1）, function key module（2）Finger tip function key can be included（21）Or palm function key（22）, finger tip group
Part（3）, function key module（2）By connecting circuit（4）With power supply（5）, data processing module（6）With communication module（7）Electrically
Connection.
2. according to the projection demonstration device based on gesture operation described in claim 1, it is characterised in that：The finger tip component
（3）Include fingertip motions attitude sensor（1）With finger tip function key（21）, fingertip motions attitude sensor（1）It may be provided at finger
Sharp position, at least one finger tip function key（21）In being arranged on finger side or referring to.
3. according to the projection demonstration device based on gesture operation described in claim 1, it is characterised in that：The palm component bag
Include power supply（5）, data processing module（6）With communication module（7）, palm function key（22）It is arranged on the palm of the hand or the back of the hand position.
4. according to the projection demonstration device based on gesture operation described in claim 1, it is characterised in that：The finger tip component
（3）It is worn on by fingerstall or fixture on finger, the palm component is worn on palm by adjustable bandage.
5. according to the projection demonstration device based on gesture operation described in claim 1 to claim 4 any bar, its feature exists
In：The finger tip function key（21）With palm function key（22）Film key, pressure type sensor or electric capacity sense can be used
Inductive switch.
6. a kind of projection demonstration method based on gesture operation that use claim 1 described device is carried out, it is characterised in that：Draw
Lead finger to indicate screen, finger tip component（3）Interior fingertip motions attitude sensor（1）The kinematic parameter that guiding refers to is caught
With analysis, guide screen cursor is moved, by function key module（2）On difference in functionality key carry out independent operation, or
Person's guiding refers to the collective effect with function key, to realize calibration and various demostrating actions.
7. according to the projection demonstration method based on gesture operation described in claim 6, it is characterised in that：Also include image boundary
Calibration method, the guiding of user refers to the border lateral or longitudinal movement along view field, or oblique along screen diagonal
Moved to movement, or according to the track of screen prompt, data processing module（6）Or application software passes through to projected image
The mutual proportional numerical value processing of P, projection screen S and the packet sizes of finger trace F tri-, sets up the position of finger motion and screen border
Relation.
8. according to the projection demonstration method based on gesture operation described in claim 6, it is characterised in that：Also include mark side
Method, the gesture that holds a pen that user is brought together using thumbtip and forefinger tip, the finger tip function key of index finger tip is pressed using thumb
（21）, now data processing module（6）Or application software follows the trail of the movement locus of forefinger, and drawn out in the projection demonstration page
Correspondence track, realizes word or figure labeling.
9. according to the projection demonstration method based on gesture operation described in claim 6, it is characterised in that：Also include page turning side
Method, user stretches forefinger, and on the premise of triggering or without Trigger Function key, food is quickly brandished to the left side or the right
Refer to, you can realize the front and rear page page-turning function of the projection demonstration page.
10. according to the projection demonstration method based on gesture operation described in claim 6, it is characterised in that：Also include sensing behaviour
Make method, user slides finger on capacitance-sensitive switch, by application software definition can produce page turning, amplification, diminution,
The effect advance, retreated, adjust volume.
11. according to the projection demonstration method based on gesture operation described in claim 6, it is characterised in that：For screen
The different object types of display, same gesture can be defined as being directed to the different-effect for being particularly shown object.
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| CN201610260763.9A CN107305431A (en) | 2016-04-25 | 2016-04-25 | Projection demonstration device and method based on gesture operation |
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| CN201610260763.9A CN107305431A (en) | 2016-04-25 | 2016-04-25 | Projection demonstration device and method based on gesture operation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112929734A (en) * | 2021-02-05 | 2021-06-08 | 维沃移动通信有限公司 | Screen projection method and device and electronic equipment |
| CN114143521A (en) * | 2019-09-30 | 2022-03-04 | 深圳市火乐科技发展有限公司 | Game projection method, projector and storage medium |
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| CN109618041A (en) * | 2018-02-25 | 2019-04-12 | 孙磊 | Projection based on electric quantity monitoring triggers platform |
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| CN112929734B (en) * | 2021-02-05 | 2023-09-05 | 维沃移动通信有限公司 | Screen projection method and device and electronic equipment |
| CN114185426A (en) * | 2021-10-28 | 2022-03-15 | 安徽工程大学 | Fingertip wearable dual-channel interaction device |
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