CN103389877A - Finger tilt identification method and system based on touch screen and mobile terminal - Google Patents
Finger tilt identification method and system based on touch screen and mobile terminal Download PDFInfo
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- CN103389877A CN103389877A CN2013103132135A CN201310313213A CN103389877A CN 103389877 A CN103389877 A CN 103389877A CN 2013103132135 A CN2013103132135 A CN 2013103132135A CN 201310313213 A CN201310313213 A CN 201310313213A CN 103389877 A CN103389877 A CN 103389877A
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Abstract
The invention discloses a finger tilt identification method and system based on a touch screen and a mobile terminal. The method comprises the following steps: when user touch of the touch screen is detected, triggering to start a finger inclination tilt function; acquiring a touch area of a finger on the touch screen, and acquiring the central point of the touch area for serving as a first central point; when finger touch of the touch screen exceeds a preset time period according to detection, acquiring the touch area of the finger on the touch screen once again, and meanwhile acquiring the central point of the new touch area for serving as a second central point; and judging whether the second central point is deviated from the first central point by a predetermined distance, if so, judging that the finger tilts.
Description
Technical field
The present invention relates to touch-screen and touch detection field, relate in particular to a kind of inclination of finger based on touch-screen recognition methods, system and mobile terminal.
Background technology
At present, touch-screen has become the accessory commonly used of mobile terminal device gradually, and some equipment has even been cancelled most hardware button, with touch screen operation as topmost and equipment user interactions.Although existing touch screen operation can realize identifying the operations such as multiple point touching, slip, existing touch-screen can't be realized identifying the function that finger tilts, and this makes the function relevant to pointing tilt operation also can't realize.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of inclination of finger based on touch-screen recognition methods, system and mobile terminal, aim to provide a kind of function that can identify the operation of finger inclination, and can respond user's operation relevant with the finger inclination.
Technical scheme of the present invention is as follows:
A kind of inclination of finger based on touch-screen recognition methods, is characterized in that, comprises step:
A, when the user being detected and touch touch-screen, trigger and open finger inclination recognition function;
B, obtain the touch area of finger on touch-screen, and the central point that obtains this touch area is as first nodal point;
C, after the finger touch touch-screen being detected and surpassing the schedule time, again obtain the touch area of finger on touch-screen, obtain simultaneously the central point of new touch area as the second central point;
D, judge whether the second central point departs from the first nodal point preset distance, when being, judge that finger tilts.
The described inclination of finger based on touch-screen recognition methods, is characterized in that, described step B specifically comprises:
B1, obtain the touch area of finger on touch-screen, and obtain this touch area at the maximal value Xmax on X-axis, the minimum value Xmin on X-axis, the maximal value Ymax on Y-axis, the minimum value Ymin on Y-axis;
B2, calculate the central point of this touch area, and with this central point as first nodal point:
Xmid=（Xmax+Xmin）/2；
Ymid=(Ymax+Ymin)/2, described Xmid is the coordinate of first nodal point on X-axis, Ymid is the coordinate of first nodal point on Y-axis.
The described inclination of finger based on touch-screen recognition methods, is characterized in that, described step C specifically comprises:
C1, unlatching one timer, when arriving the timing of this timer, judge whether the user discharges touch-screen, when being, closing finger inclination recognition function, otherwise enter step C2;
C2, again obtain the touch area of finger on touch-screen, obtain simultaneously the central point of new touch area as the second central point, and calculate the coordinate X1mid of the second central point on X-axis.
The described inclination of finger based on touch-screen recognition methods, is characterized in that, described step D specifically comprises:
When the second central point meets: Xmid-Xth≤X1mid≤Xmid+Xth, the judgement finger does not tilt;
When the second central point meets: Xmid+Xth＜X1mid＜Xmax, judge that finger is tilted to the right;
When the second central point meets: Xmid-Xth＞X1mid＞Xmin, judge that finger is tilted to the left;
Xth is a default threshold value.
The described inclination of finger based on touch-screen recognition methods is characterized in that described Xth is dynamic value: Xth=(Xmin+Xmax)/3.
A kind of inclination of finger based on touch-screen recognition system wherein, comprising:
The touch recognition module, be used for triggering to open and pointing the inclination recognition function when the user being detected and touch touch-screen;
The first acquisition module, be used for obtaining the touch area of finger on touch-screen, and the central point that obtains this touch area is as first nodal point;
The second acquisition module, be used for again obtaining the touch area of finger on touch-screen the finger touch touch-screen being detected over after the schedule time, obtains simultaneously the central point of new touch area as the second central point;
Judge module, be used for judging whether the second central point departs from the first nodal point preset distance, when being, judges that finger tilts.
The described inclination of finger based on touch-screen recognition system, wherein, described the first acquisition module comprises:
The first acquiring unit, be used for obtaining the touch area of finger on touch-screen, and obtain this touch area at the maximal value Xmax on X-axis, the minimum value Xmin on X-axis, the maximal value Ymax on Y-axis, the minimum value Ymin on Y-axis;
Computing unit, be used for to calculate the central point of this touch area, and with this central point as first nodal point:
Xmid=（Xmax+Xmin）/2；
Ymid=(Ymax+Ymin)/2, described Xmid is the coordinate of first nodal point on X-axis, Ymid is the coordinate of first nodal point on Y-axis.
The described inclination of finger based on touch-screen recognition system, wherein, described the second acquisition module comprises:
Judging unit, be used for opening a timer, when arriving the timing of this timer, judges whether the user discharges touch-screen, when being, closes finger inclination recognition function;
Second acquisition unit, be used for when the user does not discharge touch-screen, again obtains the touch area of finger on touch-screen, obtains simultaneously the central point of new touch area as the second central point, and calculate the coordinate X1mid of the second central point on X-axis.
The described inclination of finger based on touch-screen recognition system, wherein, described judge module comprises:
The identifying unit that do not tilt is used for meeting when the second central point: Xmid-Xth≤X1mid≤Xmid+Xth, and the judgement finger tilts;
The identifying unit that is tilted to the right meets if be used for the second central point: Xmid+Xth＜X1mid＜Xmax, judge that finger is tilted to the right;
The identifying unit that is tilted to the left meets if be used for the second central point: Xmid-Xth＞X1mid＞Xmin, judge that finger is tilted to the left;
Xth is a default threshold value.
A kind of mobile terminal, wherein, comprise finger inclination recognition system as above.
Beneficial effect: the present invention points two central points in the touch area of different time by acquisition, judge according to the deviation distance of two central points whether finger tilts, thereby identify the operation that finger tilts, and can respond user-dependent action, the present invention has increased the function of the finger inclination identification of touch-screen, enriched the operation of touch-screen, for the user has brought brand-new touch screen operation, experienced.
Description of drawings
Fig. 1 is the process flow diagram that the present invention is based on the finger inclination recognition methods preferred embodiment of touch-screen.
Fig. 2 is the touch schematic diagram when in method of the present invention, finger does not tilt to touch touch-screen.
Fig. 3 is the touch schematic diagram when in method of the present invention, finger tilts to touch touch-screen.
Fig. 4 is the area schematic of touch-screen touch area in method of the present invention.
Fig. 5 is the scope schematic diagram that in method of the present invention, finger tilts to identify the different decision scope.
Fig. 6 is the structured flowchart that the present invention is based on the finger inclination recognition system preferred embodiment of touch-screen.
Embodiment
The invention provides a kind of inclination of finger based on touch-screen recognition methods, system and mobile terminal, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1, Fig. 1 is the process flow diagram that the present invention is based on the finger inclination recognition methods preferred embodiment of touch-screen, and as shown in the figure, it comprises step:
S101, when the user being detected and touch touch-screen, trigger and open finger inclination recognition function;
S102, obtain the touch area of finger on touch-screen, and the central point that obtains this touch area is as first nodal point;
S103, after the finger touch touch-screen being detected and surpassing the schedule time, again obtain the touch area of finger on touch-screen, obtain simultaneously the central point of new touch area as the second central point;
S104, judge whether the second central point departs from the first nodal point preset distance, when being, judge that finger tilts;
In step S101, when user's finger touch touch-screen being detected, trigger and open finger inclination recognition function, whether the identification finger tilts.
In step S102, at first obtain finger in the touch area of touch-screen, then obtain the central point of this touch area as first nodal point, specifically, it comprises step:
S201, obtain the touch area of finger on touch-screen, and obtain this touch area at the maximal value Xmax on X-axis, the minimum value Xmin on X-axis, the maximal value Ymax on Y-axis, the minimum value Ymin on Y-axis, as shown in Figures 2 and 3, finger is when touching touch-screen, may be that the mode that does not tilt touches touch-screen, the mode that also may tilt touches touch-screen, first obtain the touch area of finger at touch-screen this moment, as shown in Figure 4, it is an irregular touch area for touch area on touch-screen, this touch area is in the maximal value of X-axis and Y-axis, minimum value all can be obtained, in this touch area, the horizontal ordinate that C is ordered is the maximal value Xmax of this touch area on X-axis, the horizontal ordinate that A is ordered is the minimum value Xmin of this touch area on X-axis, the ordinate that B is ordered is the maximal value Ymax of this touch area on Y-axis, the ordinate that D is ordered is the minimum value Ymin of this touch area on Y-axis.
S202, calculate the central point of this touch area, and with this central point as first nodal point:
Xmid=（Xmax+Xmin）/2；
Ymid=(Ymax+Ymin)/2, as shown in Figure 4, Xmid is the coordinate of first nodal point M on X-axis, Ymid is the coordinate of first nodal point M on Y-axis.
In step S103, after finger touch touch-screen certain hour, again obtain finger in the touch area of touch-screen, obtain simultaneously the central point of new touch area as the second central point, it comprises step:
S401, unlatching one timer, when arriving the timing of this timer, judge whether the user discharges touch-screen, when being, closing finger inclination recognition function, otherwise enter step S402; , detect the user and whether discharge touch-screen for example during 200ms at the timing that reaches timer, if direct process ends, close finger inclination recognition function, otherwise obtain new touch area.
S402, again obtain the touch area of finger on touch-screen, obtain simultaneously the central point of new touch area as the second central point, and calculate the coordinate X1mid of the second central point on X-axis, also can obtain the coordinate Y1mid on Y-axis simultaneously.Step in this process is identical with the process of obtaining and calculating of the first nodal point of front, therefore repeat no more.
In step S104, this step is to detect the second central point to depart from the distance of first nodal point, and is specific as follows:
When the second central point meets: Xmid-Xth≤X1mid≤Xmid+Xth, the judgement finger does not tilt;
If the second central point meets: Xmid+Xth＜X1mid＜Xmax, judge that finger is tilted to the right;
If the second central point meets: Xmid-Xth＞X1mid＞Xmin, judge that finger is tilted to the left;
Xth is a default threshold value.
As shown in Figure 5, when the second central point is positioned at scope 1, judge that finger is tilted to the left, when the second central point is positioned at scope 2, judge that finger does not tilt, when the second central point is positioned at scope 3, judge that finger is tilted to the right.
Described Xth is a default threshold value, and this threshold value can be dynamic value, for example an Xth=(Xmin+Xmax)/3.
After judgement is complete, can reenter step S103, re-start detection, whether tilt to continue detecting finger, response user's operation.
In the present invention, can adopt same principle to judge the deviation distance of the ordinate of the second central point, this determination methods with horizontal ordinate is identical, can realize equally the purpose whether the identification finger tilts, and namely the identification finger is inclined upwardly or is downward-sloping.
Based on said method, the present invention also provides a kind of inclination of finger based on touch-screen recognition system, and as shown in Figure 6, it comprises:
The first acquisition module 200, be used for obtaining the touch area of finger on touch-screen, and the central point that obtains this touch area is as first nodal point;
The second acquisition module 300, be used for again obtaining the touch area of finger on touch-screen the finger touch touch-screen being detected over after the schedule time, obtains simultaneously the central point of new touch area as the second central point;
Further, described the first acquisition module 200 comprises:
The first acquiring unit, be used for obtaining the touch area of finger on touch-screen, and obtain this touch area at the maximal value Xmax on X-axis, the minimum value Xmin on X-axis, the maximal value Ymax on Y-axis, the minimum value Ymin on Y-axis;
Computing unit, be used for to calculate the central point of this touch area, and with this central point as first nodal point:
Xmid=（Xmax+Xmin）/2；
Ymid=(Ymax+Ymin)/2, described Xmid is the coordinate of first nodal point on X-axis, Ymid is the coordinate of first nodal point on Y-axis.
Further, described the second acquisition module 300 comprises:
Judging unit, be used for opening a timer, when arriving the timing of this timer, judges whether the user discharges touch-screen, when being, closes finger inclination recognition function;
Second acquisition unit, be used for when the user does not discharge touch-screen, again obtains the touch area of finger on touch-screen, obtains simultaneously the central point of new touch area as the second central point, and calculate the coordinate X1mid of the second central point on X-axis.
Further, described judge module 400 comprises:
The identifying unit that do not tilt is used for meeting when the second central point: Xmid-Xth≤X1mid≤Xmid+Xth, and the judgement finger tilts;
The identifying unit that is tilted to the right meets if be used for the second central point: Xmid+Xth＜X1mid＜Xmax, judge that finger is tilted to the right;
The identifying unit that is tilted to the left meets if be used for the second central point: Xmid-Xth＞X1mid＞Xmin, judge that finger is tilted to the left;
Xth is a default threshold value.
The present invention also provides a kind of mobile terminal, and it comprises finger inclination recognition system as above.Described mobile terminal is the various handheld terminals such as mobile phone, PAD.
In sum, the present invention points two central points in the touch area of different time by acquisition, judge according to the deviation distance of two central points whether finger tilts, thereby identify the operation that finger tilts, and can respond user-dependent action, the present invention has increased the function of the finger inclination identification of touch-screen, has enriched the operation of touch-screen, for the user has brought brand-new touch screen operation, experiences.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. the inclination of the finger based on a touch-screen recognition methods, is characterized in that, comprises step:
A, when the user being detected and touch touch-screen, trigger and open finger inclination recognition function;
B, obtain the touch area of finger on touch-screen, and the central point that obtains this touch area is as first nodal point;
C, after the finger touch touch-screen being detected and surpassing the schedule time, again obtain the touch area of finger on touch-screen, obtain simultaneously the central point of new touch area as the second central point;
D, judge whether the second central point departs from the first nodal point preset distance, when being, judge that finger tilts.
2. the inclination of the finger based on touch-screen recognition methods according to claim 1, is characterized in that, described step B specifically comprises:
B1, obtain the touch area of finger on touch-screen, and obtain this touch area at the maximal value Xmax on X-axis, the minimum value Xmin on X-axis, the maximal value Ymax on Y-axis, the minimum value Ymin on Y-axis;
B2, calculate the central point of this touch area, and with this central point as first nodal point:
Xmid=（Xmax+Xmin）/2；
Ymid=(Ymax+Ymin)/2, described Xmid is the coordinate of first nodal point on X-axis, Ymid is the coordinate of first nodal point on Y-axis.
3. the inclination of the finger based on touch-screen recognition methods according to claim 1, is characterized in that, described step C specifically comprises:
C1, unlatching one timer, when arriving the timing of this timer, judge whether the user discharges touch-screen, when being, closing finger inclination recognition function, otherwise enter step C2;
C2, again obtain the touch area of finger on touch-screen, obtain simultaneously the central point of new touch area as the second central point, and calculate the coordinate X1mid of the second central point on X-axis.
4. the inclination of the finger based on touch-screen recognition methods according to claim 3, is characterized in that, described step D specifically comprises:
When the second central point meets: Xmid-Xth≤X1mid≤Xmid+Xth, the judgement finger does not tilt;
When the second central point meets: Xmid+Xth＜X1mid＜Xmax, judge that finger is tilted to the right;
When the second central point meets: Xmid-Xth＞X1mid＞Xmin, judge that finger is tilted to the left;
Xth is a default threshold value.
5. the inclination of the finger based on touch-screen recognition methods according to claim 4, is characterized in that, described Xth is dynamic value: Xth=(Xmin+Xmax)/3.
6. the inclination of the finger based on a touch-screen recognition system, is characterized in that, comprising:
The touch recognition module, be used for triggering to open and pointing the inclination recognition function when the user being detected and touch touch-screen;
The first acquisition module, be used for obtaining the touch area of finger on touch-screen, and the central point that obtains this touch area is as first nodal point;
The second acquisition module, be used for again obtaining the touch area of finger on touch-screen the finger touch touch-screen being detected over after the schedule time, obtains simultaneously the central point of new touch area as the second central point;
Judge module, be used for judging whether the second central point departs from the first nodal point preset distance, when being, judges that finger tilts.
7. the inclination of the finger based on touch-screen recognition system according to claim 6, is characterized in that, described the first acquisition module comprises:
The first acquiring unit, be used for obtaining the touch area of finger on touch-screen, and obtain this touch area at the maximal value Xmax on X-axis, the minimum value Xmin on X-axis, the maximal value Ymax on Y-axis, the minimum value Ymin on Y-axis;
Computing unit, be used for to calculate the central point of this touch area, and with this central point as first nodal point:
Xmid=（Xmax+Xmin）/2；
Ymid=(Ymax+Ymin)/2, described Xmid is the coordinate of first nodal point on X-axis, Ymid is the coordinate of first nodal point on Y-axis.
8. the inclination of the finger based on touch-screen recognition system according to claim 6, is characterized in that, described the second acquisition module comprises:
Judging unit, be used for opening a timer, when arriving the timing of this timer, judges whether the user discharges touch-screen, when being, closes finger inclination recognition function;
Second acquisition unit, be used for when the user does not discharge touch-screen, again obtains the touch area of finger on touch-screen, obtains simultaneously the central point of new touch area as the second central point, and calculate the coordinate X1mid of the second central point on X-axis.
9. the inclination of the finger based on touch-screen recognition system according to claim 8, is characterized in that, described judge module comprises:
The identifying unit that do not tilt is used for meeting when the second central point: Xmid-Xth≤X1mid≤Xmid+Xth, and the judgement finger tilts;
The identifying unit that is tilted to the right meets if be used for the second central point: Xmid+Xth＜X1mid＜Xmax, judge that finger is tilted to the right;
The identifying unit that is tilted to the left meets if be used for the second central point: Xmid-Xth＞X1mid＞Xmin, judge that finger is tilted to the left;
Xth is a default threshold value.
10. a mobile terminal, is characterized in that, comprises described finger inclination recognition system as arbitrary in claim 6 to 9.
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| CN201310313213.5A CN103389877B (en) | 2013-07-24 | 2013-07-24 | Finger tilt identification method and system based on touch screen and mobile terminal |
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