CN103294268A - Human left-right hand identification method on multi-point touch screen - Google Patents
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Abstract
The invention provides a human left-right hand identification method on a multi-point touch screen. The human left-right hand identification method comprises static identification and dynamic identification. The static identification is used for identifying that a hand on a screen is a left hand or a right hand in a static state or in a moment. The dynamic identification is used for identifying hands in a dynamic state. In specific cases, the static identification or a combination of the static identification and the dynamic identification are used. The static identification includes steps of 1), finding out a convex pentagon formed by five touch points; 2), finding out fingers corresponding to the five touch points according to the convex pentagon; 3), comparing and judging whether vectors composed by a thumb and an index finger and vectors composed by the thumb and a little finger are in clockwise relationship or anticlockwise relationship, and determining the left hand or the right hand through the clockwise and anticlockwise relationships.
Description
Technical field
The present invention relates to a kind of computing machine and identify human right-hand man's method, particularly, relate to the human right-hand man's recognition methods on a kind of multi-point touch screen.
Background technology
Anti-war along with technology, touch technology is more and more universal, the touch control computer that arranges such as the mobile phone of supporting touch-screen, MP3, digital camera, hospital, library etc. etc.But the touch-control curtain that these have existed all is single-point touch, can only identify and support touch-control, the click of every next finger, if have plural point touched simultaneously, just can not make correct response, and the multi-point touch technology can be decomposed into task the work of two aspects, the one, gather multi-point signal simultaneously, and the 2nd, the meaning of every road signal is judged, so-called gesture identification just, thus realize click, the touch-control action that five fingers of On-Screen Identification people are done simultaneously.
Multi-point touch is to adopt human-computer interaction technology and the common technology that realizes of hardware device, can be in the man-machine interactive operation that does not have to carry out under traditional input equipment (as: mouse, keyboard etc.) computing machine.The user can carry out single-point touches by both hands, also can realize indiscriminately ad. as one wishes controlling to click, double-click, translation, to press, roll and different gesture touch screen such as rotation.In order to allow the user that better experience is arranged, sometimes need to arrange the personalized interaction of left hand and right hand custom.
Now in the technology, some right-hand man's recognition methodss are also arranged, be the patent of invention of 102799268A such as the Chinese patent publication number, this patent disclosure " a kind of handheld terminal right-hand man recognition methods; utilize the built-in deflection angle sensor of handheld terminal, may further comprise the steps: the deflection angle when 101) detecting and obtaining the user and controlling handheld terminal; 102) relatively identify left hand or the right hand and stored count according to the angle thresholding of described deflection angle and setting; 103) repeating step 101-102), if described stored count above the correspondence counting thresholding of setting, is identified and the output left hand controls or the right hand is controlled.This recognition methods, simple and fast and accuracy of identification height, thus can personalized interaction be set respectively for a left side/right-handed, satisfied the demand of different crowd the biglyyest.”
And for example publication number is the patent of invention of 102289301A, but this invention relates to a kind of mouse of free left/right hands operation mode switching function, and " this mouse comprises detecting unit and processing unit.The hand that this detecting unit is used for this mouse of detecting operation is left hand or the right hand, and the hand that this processing unit detects this mouse of operation at this detecting unit is left hand or produces corresponding left hand identification signal or right hand identification signal during for the right hand.This left hand identification signal is used for current operator scheme is changed to the left-handed operation pattern, and this right hand identification signal is used for current operator scheme is changed to the right-hand operated pattern.Described mouse is left hand or the right hand by the hand that this mouse of detecting unit identifying operation is set, thereby does the change of corresponding right-hand man's operator scheme, realizes freely switching of mouse right-hand man operator scheme, and is easy and simple to handle.”
Though above method can be identified the right-hand man under the different situations, can't be applicable to the right-hand man's identification on the multi-point touch screen.Though the report of gesture identification on the multi-point touch screen is arranged at present, does not also find for the human right-hand man's recognition methods on the multi-point touch screen.
Summary of the invention
At defective of the prior art, the purpose of this invention is to provide the human right-hand man's recognition methods on a kind of multi-point touch screen, this method is carried out computational analysis according to the relative position each other of the touch point of finger on screen, draws left hand or the right hand at last.
For achieving the above object, the human right-hand man's recognition methods on the multi-point touch screen of the present invention comprises static identification and Dynamic Recognition, and wherein static identification is used under the identification stationary state or at certain in a flash, the hand on the screen is left hand or the right hand; Dynamic Recognition is used for hand identification at the volley; Can use the mode of static identification or static identification and Dynamic Recognition combination during concrete the use.
Concrete, described static identification comprises the steps:
The first step, staff have five touch points of corresponding finger after the multi-point touch screen touches, the protruding pentagon that finds these five touch points to form.
Five touch points are linked to each other in twos, form one by 10 formed figure of line segment.Seek the shortest Hamilton loop of total length among this figure, this loop is exactly by five protruding pentagons that the touch point is formed.The Hamilton loop is through each point once loop once and only.
In second step, find five corresponding fingers in touch point according to protruding pentagon.
In the protruding pentagon that the first step finds, longest edge L1 is formed by connecting by thumb and little finger of toe, and the second long limit L2 is formed by connecting by thumb and forefinger.Article two, the point owned together of limit is the corresponding point of thumb.Another point of longest edge L1 is the corresponding point of little finger of toe, and another point of the second long limit L2 is the corresponding point of forefinger.Because forefinger is adjacent with middle finger, nameless adjacent with little finger of toe, can find middle finger and nameless corresponding point thus.
The 3rd step, relatively and judge between the vector of being formed by thumb and forefinger and the vector of being formed by thumb and little finger of toe it is clockwise or counterclockwise relation, and by this clockwise, concern that judgement is left hand or the right hand counterclockwise.
If thumb is P1, forefinger is P2, and little finger of toe is P3, then vectorial V1 be (P1, P2), V2 be (P1, P3).Vectorial V1 is rotated counterclockwise, overlaps with vectorial V2 until vectorial V1, if the angle of rotation is spent less than 180 more than or equal to 0 degree, then vectorial V2 is in the counter clockwise direction of vectorial V1; If the angle of rotation is greater than 180 degree, then vectorial V2 is in the clockwise direction of vectorial V1.If vectorial V2 in the counter clockwise direction of vectorial V1, then is the right hand; Otherwise, then be left hand.
More than be the process of static identification, be placed on the touch screen naturally the five fingers of hand and transfixion that the degree of accuracy of static identification is very high.If but hand at the volley, such as doing the gesture that zooms in or out, the relative position of the five fingers can't thought in static sometimes.Therefore, need to adopt the method for Dynamic Recognition.Dynamic gesture may occur two kinds and cause the coarse reason of static identification: the part finger is leaving the action that screen and hand-type have produced distortion unintentionally.Below be that two kinds of situations are handled.
(1), left screen when partly pointing.
Leave screen as the fruit part finger, then can't find protruding pentagon by the method for static state identification.Make discovery from observation, if be left four fingers on screen, the finger that then frames out mostly is little finger; If remaining three fingers, the finger that then frames out mostly is little finger and the third finger.In doing the action of amplifying and dwindling, this phenomenon is particularly evident.
Therefore, only need find corresponding convex quadrangle or triangle to get final product.If remain four fingers, longest edge L1 changes thumb and nameless line into; If remain three fingers, longest edge L1 changes the line of thumb and middle finger into.All the other methods are consistent with static recognition methods before.
(2) hand-type has produced distortion.
Coarse situation appears in this case, simple static recognition methods meeting.Yet the probability that the situation of hand-type distortion occurs in whole motion is quite little.If it is t1 that the five fingers touch the time of screen, current time is t2, and between t1～t2, if it is maximum the number of times of the right hand to occur, then working as remote holder is the right hand; If it is maximum the number of times of left hand to occur, then working as remote holder is left hand.
Compared with prior art, the present invention has following beneficial effect:
The present invention can be used for touch screen equipment (comprising panel computer, smart mobile phone etc.) and other can catch on the equipment of finger, carries out right-hand man's identification.Current touch screen equipment popularity rate is very high, also emerges in an endless stream based on the application of touch screen.Some application may use right-hand man's identification, so that use more rich and varied.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the staff synoptic diagram;
Fig. 2 is five touch point synoptic diagram of finger;
Fig. 3 is synoptic diagram behind five touch point lines of finger;
Fig. 4 is five protruding pentagon synoptic diagram that the touch point is formed;
Fig. 5 is five corresponding finger synoptic diagram in touch point;
Fig. 6 compares synoptic diagram for the vector between the finger;
Fig. 7-Fig. 8 judges synoptic diagram for the pitch angle direction of finger straight line;
Fig. 9-Figure 10 manual attitude identification synoptic diagram of behaving;
Figure 11-Figure 12 is simulation example synoptic diagram of the present invention.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit the present invention in any form.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Present embodiment provides the human right-hand man's recognition methods on a kind of multi-point touch screen.As shown in Figure 1, be the synoptic diagram of general staff.As shown in Figure 2, for staff generally in 5 each touch point that touch-screen stays.
1. find out five formed protruding pentagons in touch point.
Five touch points are linked to each other in twos, form one by 10 figure (as shown in Figure 3) that line segment is formed.Seek the shortest Hamilton loop of total length among this figure, this loop is exactly by five protruding pentagons (shown in Figure 4) that the touch point is formed.The Hamilton loop is through each point once loop once and only.
2. find five corresponding fingers in touch point.
In the protruding pentagon that finds before, longest edge L1 is formed by connecting by thumb and little finger of toe, and the second long limit L2 is formed by connecting by thumb and forefinger.Article two, the point owned together of limit is the corresponding point of thumb.Another point of L1 is the corresponding point of little finger of toe, and another point of L2 is the corresponding point of forefinger.Because forefinger is adjacent with middle finger, nameless adjacent with little finger of toe, can find middle finger and nameless corresponding point (shown in Figure 5) thus.
3. be clockwise or counterclockwise relation between the vector of relatively being formed by thumb and forefinger and the vector formed by thumb and little finger of toe.
If thumb is P1, forefinger is P2, and little finger of toe is P3, then vectorial V1 be (P1, P2), V2 be (P1, P3).As shown in Figure 6, if V1 is rotated counterclockwise, overlap with V2 until V1.If less than 180 degree, then V2 is in the counter clockwise direction of V1 more than or equal to 0 degree for the angle of rotation; If the angle of rotation is greater than 180 degree, then V2 is in the clockwise direction of V1.
According to general knowledge, if the pitch angle of straight line is K 〉=0, arctan (K); If K＜0, pi-arctan (K), K is slope, tilt angle ranges be [0,180).Define the pitch angle of vectorial V for vectorial V being rotated clockwise to the angle of the required process of x axle positive dirction here.The scope at pitch angle be [0,360).The method of calculating this pitch angle is, if vector one, two quadrant, then the pitch angle is the pitch angle of the straight line at this vector place; If vector three, four-quadrant, then the pitch angle is that the pitch angle at this vector place adds 180 degree.Shown in Fig. 7,8.
If the pitch angle of V1 is A1, the pitch angle of V2 is A2.If A2-A1 is more than or equal to 0 and less than 180 degree, perhaps A2-A1 illustrates then that less than-180 degree V2 is in the counter clockwise direction of V1; Otherwise, illustrate that then V2 is in the clockwise direction of V1.
4. if V2 is in the counter clockwise direction of V1, then be the right hand; Otherwise, then be left hand.
If be placed on the touch screen naturally the five fingers of hand and transfixion, the degree of accuracy of static identification is very high.If but hand at the volley, such as doing the gesture that zooms in or out, the relative position of the five fingers can't thought in static sometimes.Therefore, must adopt the method for Dynamic Recognition.
Dynamic gesture may occur two kinds and cause the coarse reason of static identification: the part finger is leaving the action that screen and hand-type have produced distortion unintentionally.Below be that two kinds of situations are handled.
1. the part finger has left screen.
Leave screen as the fruit part finger, then can't find protruding pentagon by the method for static state identification.Make discovery from observation, if be left four fingers on screen, the finger that then frames out mostly is little finger; If remaining three fingers, the finger that then frames out mostly is little finger and the third finger.In doing the action of amplifying and dwindling, this phenomenon is particularly evident.
Therefore, only need find corresponding convex quadrangle or triangle to get final product.If remain four fingers, longest edge L1 changes thumb and nameless line into; If remain three fingers, longest edge L1 changes the line of thumb and middle finger into.All the other computing method are consistent with static recognition methods before.As Fig. 9, shown in Figure 10.
2. hand-type has produced distortion.
Coarse situation appears in this case, simple static recognition methods meeting.Yet the probability that the situation of hand-type distortion occurs in whole motion is quite little.If it is t1 that the five fingers touch the time of screen, current time is t2, and between t1～t2, if it is maximum the number of times of the right hand to occur, then working as remote holder is the right hand; If it is maximum the number of times of left hand to occur, then working as remote holder is left hand.
As Figure 11-shown in Figure 12, be simulation example, the line of thumb and little finger wherein, the line of thumb and forefinger all meets the above-mentioned principle of the present invention.
The present invention is simple and accuracy of identification is high, thereby can be used for touch screen equipment (comprising panel computer, smart mobile phone etc.) and other can catch on the equipment of finger, carries out right-hand man's identification, for a left side/right hand crowd provides corresponding demand.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present invention.
Claims (4)
1. the human right-hand man's recognition methods on the multi-point touch screen is characterized in that, comprises static identification and Dynamic Recognition, and wherein static identification is used under the identification stationary state or at certain in a flash, the hand on the screen is left hand or the right hand; Dynamic Recognition is used for hand identification at the volley; Use the mode of static identification or static identification and Dynamic Recognition combination during concrete the use;
Described static identification comprises the steps:
The first step, staff have five touch points of corresponding finger after the multi-point touch screen touches, the protruding pentagon that finds these five touch points to form;
In second step, find five corresponding fingers in touch point according to protruding pentagon;
The 3rd step, relatively and judge between the vector of being formed by thumb and forefinger and the vector of being formed by thumb and little finger of toe it is clockwise or counterclockwise relation, and by this clockwise, concern that judgement is left hand or the right hand counterclockwise;
Described Dynamic Recognition comprises that the part finger has left screen and hand-type has produced the situation of distortion:
(1) left screen when partly pointing
If remaining four fingers are on screen, the finger that then frames out mostly is little finger; If remaining three fingers, the finger that then frames out mostly is little finger and the third finger, finds these four or three to point corresponding convex quadrangle or triangle according to the static method of identifying of line number; If remain four fingers, longest edge L1 changes thumb and nameless line into; If remain three fingers, longest edge L1 changes the line of thumb and middle finger into, and all the other methods are consistent with static recognition methods;
(2) hand-type has produced distortion
If it is t1 that the five fingers touch the time of screen, current time is t2, and between t1～t2, if it is maximum the number of times of the right hand to occur, then working as remote holder is the right hand; If it is maximum the number of times of left hand to occur, then working as remote holder is left hand.
2. the human right-hand man's recognition methods on the multi-point touch screen according to claim 1, it is characterized in that, the described first step, be specially: five touch points are linked to each other in twos, form one by 10 formed figure of line segment, seek the shortest Hamilton loop of total length among this figure, this loop is exactly by five protruding pentagons that the touch point is formed, and the Hamilton loop is through each point once loop once and only.
3. the human right-hand man's recognition methods on the multi-point touch screen according to claim 1, it is characterized in that, in described second step, be specially: in the protruding pentagon that the first step finds, longest edge L1 is formed by connecting by thumb and little finger of toe, the second long limit L2 is formed by connecting by thumb and forefinger, and the point that two limits are owned together is the corresponding point of thumb; Another point of longest edge L1 is the corresponding point of little finger of toe, and another point of the second long limit L2 is the corresponding point of forefinger, and is nameless adjacent with little finger of toe because forefinger is adjacent with middle finger, finds middle finger and nameless corresponding point thus.
4. the human right-hand man's recognition methods on the multi-point touch screen according to claim 1 is characterized in that, described the 3rd step, be specially: establishing thumb is P1, and forefinger is P2, and little finger of toe is P3, then vectorial V1 is (P1, P2), V2 be (P1, P3), vectorial V1 is rotated counterclockwise, overlap with vectorial V2 until vectorial V1, if the angle of rotation is spent less than 180 more than or equal to 0 degree, then vectorial V2 is in the counter clockwise direction of vectorial V1; If the angle of rotation is greater than 180 degree, then vectorial V2 is in the clockwise direction of vectorial V1, if vectorial V2 in the counter clockwise direction of vectorial V1, then is the right hand; Otherwise, then be left hand.
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| CN201310209941.1A CN103294268B (en) | 2013-05-30 | Human left-right hand identification method in multi-point touch screen |
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| CN201310209941.1A CN103294268B (en) | 2013-05-30 | Human left-right hand identification method in multi-point touch screen |
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| CN103294268A true CN103294268A (en) | 2013-09-11 |
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| CN104169860A (en) * | 2013-11-08 | 2014-11-26 | 华为技术有限公司 | Intelligent terminal and method used for displaying input operation interface |
| CN104932825A (en) * | 2015-06-15 | 2015-09-23 | 金陵科技学院 | Method for automatically sensing left hand/right hand to operate mobile phone and determining moving thermal region of thumb |
| CN106210242A (en) * | 2015-04-29 | 2016-12-07 | 宇龙计算机通信科技(深圳)有限公司 | Antenna switching method, device and terminal |
| CN106681629A (en) * | 2016-12-06 | 2017-05-17 | 广州视源电子科技股份有限公司 | Display mode switching method and device |
| CN108269350A (en) * | 2016-12-30 | 2018-07-10 | 航天信息股份有限公司 | The verification method and device of seal |
| CN110334561A (en) * | 2018-03-31 | 2019-10-15 | 广州卓腾科技有限公司 | A kind of gestural control method of control object rotation |
| CN112603275A (en) * | 2020-12-28 | 2021-04-06 | 中科彭州智慧产业创新中心有限公司 | Double-hand cunkou pulse wave detection equipment and method based on ultrasonic sensor |
| CN112603276A (en) * | 2020-12-28 | 2021-04-06 | 中科彭州智慧产业创新中心有限公司 | Rapid detection equipment and method for pulse waves of cun and kou of both hands |
| CN113296675A (en) * | 2021-04-26 | 2021-08-24 | 兰州大学 | Natural gesture finger recognition algorithm |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104169860A (en) * | 2013-11-08 | 2014-11-26 | 华为技术有限公司 | Intelligent terminal and method used for displaying input operation interface |
| CN104169860B (en) * | 2013-11-08 | 2019-04-05 | 华为技术有限公司 | Intelligent terminal and method for showing its input operation interface |
| CN106210242A (en) * | 2015-04-29 | 2016-12-07 | 宇龙计算机通信科技(深圳)有限公司 | Antenna switching method, device and terminal |
| CN104932825A (en) * | 2015-06-15 | 2015-09-23 | 金陵科技学院 | Method for automatically sensing left hand/right hand to operate mobile phone and determining moving thermal region of thumb |
| CN104932825B (en) * | 2015-06-15 | 2018-04-20 | 南京韵奇盈信息技术有限公司 | A kind of automatic sensing right-hand man operating handset and the method for determining thumb activity hot-zone |
| CN106681629A (en) * | 2016-12-06 | 2017-05-17 | 广州视源电子科技股份有限公司 | Display mode switching method and device |
| CN108269350A (en) * | 2016-12-30 | 2018-07-10 | 航天信息股份有限公司 | The verification method and device of seal |
| CN110334561A (en) * | 2018-03-31 | 2019-10-15 | 广州卓腾科技有限公司 | A kind of gestural control method of control object rotation |
| CN112603275A (en) * | 2020-12-28 | 2021-04-06 | 中科彭州智慧产业创新中心有限公司 | Double-hand cunkou pulse wave detection equipment and method based on ultrasonic sensor |
| CN112603276A (en) * | 2020-12-28 | 2021-04-06 | 中科彭州智慧产业创新中心有限公司 | Rapid detection equipment and method for pulse waves of cun and kou of both hands |
| CN113296675A (en) * | 2021-04-26 | 2021-08-24 | 兰州大学 | Natural gesture finger recognition algorithm |
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