CN102521855A - Handwriting regulation method and device based on touch platform - Google Patents
Handwriting regulation method and device based on touch platform Download PDFInfo
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- CN102521855A CN102521855A CN2011103742480A CN201110374248A CN102521855A CN 102521855 A CN102521855 A CN 102521855A CN 2011103742480 A CN2011103742480 A CN 2011103742480A CN 201110374248 A CN201110374248 A CN 201110374248A CN 102521855 A CN102521855 A CN 102521855A
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Abstract
The invention provides a handwriting regulation method based on a touch platform, which comprises the following steps: obtaining the width value of the handwriting of the touch platform; according to a sampling signal, obtaining the acceleration of the handwriting of the touch platform; according to the acceleration, calculating a handwriting regulation amplitude value; and according to the amplitude value, regulating the width value. The invention also provides a handwriting regulation device based on the touch platform, which performs the above method. According to the technology disclosed by the invention, the behavior of the handwriting can be predicted, the handwriting regulation amplitude value is calculated by taking the acceleration as a parameter variable so as to further optimize the width value of the handwriting, the writing handwriting is evener and more coherent and smooth, and a better writing effect is achieved.
Description
Technical field
The present invention relates to the touch technology field, particularly a kind of person's handwriting method of adjustment and device based on the touch-control platform.
Background technology
In the epoch of touch technology fast development now, carry out man-machine interaction through touch-control and more and more be widely used.Therefore also use more and more widely at the enterprising running hand write operation of touch-control platform, the requirement for the person's handwriting of touch-control platform also is increasingly high, thereby can bring better visual experience for the user.
The handwriting technology of existing touch-control platform; Generally be to reflect that strictly according to the facts the user imports, promptly reflect user's input content faithfully, yet the reflection input has following shortcoming faithfully: because touch control operation is generally discontinuous signal is to obtain through sampling; So person's handwriting in touching the platform writing process, occurs when unusual; Then have the situation fail to discern misoperation of users, cause occurring disconnected pen easily or person's handwriting not of uniform size, problems such as the person's handwriting size variation is inhomogeneous also appear simultaneously easily.
Summary of the invention
The object of the present invention is to provide a kind of person's handwriting method of adjustment and device based on the touch-control platform, solve above-mentioned touch cause occurring disconnected pen when platform is write easily or person's handwriting not of uniform size, problems such as the person's handwriting size variation is inhomogeneous also appear simultaneously easily.
A kind of person's handwriting method of adjustment based on the touch-control platform comprises the steps:
Obtain the width value of the person's handwriting of touch-control platform;
Obtain the acceleration of the person's handwriting of touch-control platform according to sampled signal;
According to the range value of said acceleration calculation person's handwriting adjustment, and said width value is adjusted according to this range value.
A kind of person's handwriting adjusting gear based on the touch-control platform comprises:
The width value acquiring unit is used to obtain the width value of the person's handwriting of touch-control platform;
Acceleration obtainment unit is used for obtaining according to sampled signal the acceleration of the person's handwriting of touch-control platform;
The width value adjustment unit is used for the range value according to said acceleration calculation person's handwriting adjustment, and according to this range value said width value is adjusted.
Compared with prior art, the variation of technology of the present invention through obtaining writing speed, the acceleration of calculating person's handwriting from discontinuous sampled signal; Because the acceleration reflection is the state of velocity variations speed; The behavior that can identify the handwriting predicts, through calculating the range value of person's handwriting adjustment with acceleration as parametric variable, and then the width value of identifying the handwriting is further optimized; Thereby make the person's handwriting of writing more evenly link up, reach better writing effect with smooth.
Description of drawings
Fig. 1 is the process flow diagram of the person's handwriting method of adjustment based on the touch-control platform of the present invention;
Fig. 2 is the structural representation of the person's handwriting adjusting gear based on the touch-control platform of the present invention;
Fig. 3 is this structural representation based on the preferred embodiment of the person's handwriting adjusting gear of touch-control platform.
Embodiment
Below in conjunction with accompanying drawing and embodiment the person's handwriting method of adjustment based on the touch-control platform of the present invention is described in detail, as shown in Figure 1, comprise the steps:
Step S101: the width value that obtains the person's handwriting of touch-control platform;
Step S102: the acceleration that obtains the person's handwriting of touch-control platform according to sampled signal;
Step S103:, and said width value is adjusted according to this range value according to the range value of said acceleration calculation person's handwriting adjustment.
Wherein, the width value of person's handwriting is promptly by person's handwriting width that original sampled signal reflected.Method for the width value that obtains person's handwriting; Behind the width value that obtains the person's handwriting that original sampled signal reflects; Can also be further the series of values of width through being directed to the some sampled points (like preceding 5 points of current point) before the current sampling point utilize curve fitting (as utilizing the interpolation algorithm in the numerical algorithm) to calculate current person's handwriting width and combine current sampling point to revise through the width value of equipment reflection, calculate width value more accurately then.
As a kind of embodiment, the method for acceleration for obtain the person's handwriting of touch-control platform among the step S102 according to sampled signal comprises the steps:
Distance between the neighbouring sample point of calculating sampling signal is according to the acceleration of said distance and SI calculating person's handwriting.
Particularly, because sampling is to sample with fixing frequency, so the time interval between the sampled point equates; Can directly obtain through sampled point between the sampled point through coordinate Calculation apart from us, at this moment, at first calculate between each neighbouring sample point apart from difference DELTA s; The difference of adjacent two segment distances can think to be proportional to velocity variations; According to sampling time interval Δ t, can try to achieve the velocity contrast Δ v between the neighbouring sample point, i.e. Δ v=Δ s/ Δ t; Promptly can further try to achieve a according to velocity contrast Δ v and Δ t again, i.e. a=Δ v/ Δ t.
For another method of obtaining acceleration; We can think that the speed between two sampled points is constant, and this speed of using is gone the speed of approximate sampled point, because actual pen trace motion generally is non-timeline deformationization; Be non-simply at the uniform velocity or uniformly accelerated motion, so should be approximate be rational.
For a,,,, a do not change if equaling the speed of 0 expression person's handwriting if a shows that less than 0 the speed of person's handwriting is slack-off if a accelerates greater than 0 speed that shows person's handwriting.
As a kind of embodiment, the method for said range value according to acceleration calculation person's handwriting adjustment can be used following formulate:
ΔW＝ka
Wherein, Δ W is the range value of person's handwriting adjustment, and k is the scale-up factor of presetting, and a is the acceleration of person's handwriting, and above-mentioned parameter is tape symbol not all.
For k; Main relevant with use occasion, for example simulating brush writing is different with simulating the k value that pen writes, and k both can the value constant; Also can be linear function or the nonlinear function relevant, specifically decide according to this patent user's actual conditions with a.
As a kind of embodiment, the method for among the said step S103 width value being adjusted can comprise the steps:
Judge the size of said acceleration; If said acceleration greater than 0, then carries out addition with said width value and said range value, promptly increase the width of person's handwriting; If said acceleration less than 0, then deducts said range value from said width value, promptly reduce the width of person's handwriting.
Above-mentioned method of adjustment is based on general writing style, promptly when writing with pen; When especially using brush writing, when the chap of needs person's handwriting, we generally can slow down writing speed and increase writing physical strength; When the needs person's handwriting attenuated, we reduced writing physical strength and accelerate person's handwriting.
For the method for among the said step S103 width value being adjusted, preferred embodiment a kind of, comprise the steps:
Pre-set threshold value is judged the size of acceleration; If said acceleration then carries out addition with said width value and said range value greater than 0 and absolute value during greater than pre-set threshold value, promptly increase the width value of person's handwriting; If said acceleration then deducts said range value from said width value less than 0 and absolute value during greater than pre-set threshold value, promptly reduce the width value of person's handwriting.
Above-mentioned preferred method of adjustment; Mainly be to further contemplate touching when writing; Speed all is uneven, and the influence that velocity variable is within the specific limits identified the handwriting is negligible, so pass through pre-set threshold value; Absolute value to acceleration is just adjusted above the person's handwriting of threshold values, thereby can reduce the spent computational resource of real-time adjustment.
Set forth below and utilize person's handwriting method of adjustment of the present invention to solve two instances of practical problems.
Instance one, separate and make a decision a problem:
When ERST appears in person's handwriting, as disconnected pen may appear in person's handwriting when writing the situation of shake of burst, at disconnected pen place if do not carry out corresponding person's handwriting adjustment; Then the handwriting data size that samples of this place is 0, and after adopting person's handwriting method of adjustment of the present invention to adjust, though be 0 in disconnected place's speed; But acceleration is also non-vanishing, therefore chooses suitable resize ratio coefficient k, when the adjustment person's handwriting; We can be to add adjusting range value ka at 0 o'clock in original person's handwriting size; Make the person's handwriting size be ka, even disconnected pen does not appear in disconnected pen place, person's handwriting continuity and slickness are guaranteed.
The person's handwriting optimization of instance two, rigidity pen:
When supposing to take certain rigidity pen to write, the person's handwriting size is to obtain through the contact area sampling, and because the elasticity of rigidity pen is relatively poor; Can be bigger and inhomogeneous if do not carry out the person's handwriting amplitude of variation of corresponding person's handwriting adjustment, and adopt person's handwriting method of adjustment of the present invention, because the increase gradually of acceleration; The variable quantity of W is adjusting range value ka, and is slower even contact area changes, steady smooth the attenuating that also can realize person's handwriting; Steadily diminishing of contact area can obtain tapered person's handwriting.
Below in conjunction with accompanying drawing and embodiment the device of using the person's handwriting method of adjustment based on the touch-control platform of the present invention is described in detail, as shown in Figure 2, the person's handwriting adjusting gear based on the touch-control platform of the present invention comprises:
The width value acquiring unit is used to obtain the width value of the person's handwriting of touch-control platform;
Acceleration obtainment unit is used for obtaining according to sampled signal the acceleration of the person's handwriting of touch-control platform;
The width value adjustment unit is used for the range value according to said acceleration calculation person's handwriting adjustment, and according to this range value said width value is adjusted.
Wherein, the width value of person's handwriting is promptly by person's handwriting width that original sampled signal reflected.Method for the width value that obtains person's handwriting; Behind the width value that obtains the person's handwriting that original sampled signal reflects; Can also be further the series of values of width through being directed to the some sampled points (like preceding 5 points of current point) before the current sampling point utilize curve fitting (as utilizing the interpolation algorithm in the numerical algorithm) to calculate current person's handwriting width and combine current sampling point to revise through the width value of equipment reflection, calculate width value more accurately then.
For the clear more person's handwriting adjusting gear based on the touch-control platform of the present invention, further combine accompanying drawing and embodiment to do more detailed elaboration below, as shown in Figure 3:
As a kind of embodiment, said acceleration obtainment unit further comprises sampled point distance calculation module and acceleration calculation module;
Its principle of work is:
Distance between the neighbouring sample point of sampled point distance calculation module calculating sampling signal; The acceleration calculation module is according to the acceleration of said distance and SI calculating person's handwriting.
Particularly, because sampling is to sample with fixing frequency, so the time interval between the sampled point equates; Can directly obtain through sampled point between the sampled point through coordinate Calculation apart from us, at this moment, at first calculate between each neighbouring sample point apart from difference DELTA s; The difference of adjacent two segment distances can think to be proportional to velocity variations; According to sampling time interval Δ t, can try to achieve the velocity contrast Δ v between the neighbouring sample point, i.e. Δ v=Δ s/ Δ t; Promptly can further try to achieve a according to velocity contrast Δ v and Δ t again, i.e. a=Δ v/ Δ t.
For another method of obtaining acceleration; We can think that the speed between two sampled points is constant, and this speed of using is gone the speed of approximate sampled point, because actual pen trace motion generally is non-timeline deformationization; Be non-simply at the uniform velocity or uniformly accelerated motion, so should be approximate be rational.
For a,,,, a do not change if equaling the speed of 0 expression person's handwriting if a shows that less than 0 the speed of person's handwriting is slack-off if a accelerates greater than 0 speed that shows person's handwriting.
As a kind of embodiment, the range value that said width value adjustment unit calculates the person's handwriting adjustment can adopt following formula:
ΔW＝ka
Wherein, Δ W is the range value of person's handwriting adjustment, and k is the scale-up factor of presetting, and a is the acceleration of person's handwriting, and above-mentioned parameter is tape symbol not all.
For k; Main relevant with use occasion, for example simulating brush writing is different with simulating the k value that pen writes, and k both can the value constant; Also can be linear function or the nonlinear function relevant, specifically decide according to this patent user's actual conditions with a.
As a kind of embodiment, said width value adjustment unit further comprises: range value computing module, judge module and adjusting module;
Its principle of work is: the range value computing module is according to the range value of said acceleration calculation person's handwriting adjustment; Judge module is judged the size of said acceleration; Adjusting module is according to the result of said judgement, if said acceleration greater than 0, then carries out addition with said width value and said range value, if said acceleration less than 0, then deducts said range value from said width value.
Above-mentioned adjustment mode is based on general writing style, promptly when writing with pen; When especially using brush writing, when the chap of needs person's handwriting, we generally can slow down writing speed and increase writing physical strength; When the needs person's handwriting attenuated, we reduced writing physical strength and accelerate person's handwriting.
Preferred embodiment a kind of for said width value adjustment unit comprises: range value computing module, threshold values judge module and adjusting module;
Its principle of work is:
The range value computing module is according to the range value of said acceleration calculation person's handwriting adjustment; Threshold values judge module pre-set threshold value is judged the size of said acceleration; Adjusting module is according to the result of said judgement, if said acceleration then carries out addition with said width value and said range value greater than 0 and absolute value during greater than pre-set threshold value; If said acceleration then deducts said range value from said width value less than 0 and absolute value during greater than pre-set threshold value.
Above-mentioned preferred adjustment mode; Mainly be to further contemplate touching when writing; Speed all is uneven, and the influence that velocity variable is within the specific limits identified the handwriting is negligible, so pass through pre-set threshold value; Absolute value to acceleration is just adjusted above the person's handwriting of threshold values, thereby can reduce the spent computational resource of real-time adjustment.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. the person's handwriting method of adjustment based on the touch-control platform is characterized in that, comprises the steps:
Obtain the width value of the person's handwriting of touch-control platform;
Obtain the acceleration of the person's handwriting of touch-control platform according to sampled signal;
According to the range value of said acceleration calculation person's handwriting adjustment, and said width value is adjusted according to this range value.
2. the person's handwriting method of adjustment based on the touch-control platform according to claim 1 is characterized in that, the said acceleration that obtains the person's handwriting of touch-control platform according to sampled signal comprises:
Distance between the neighbouring sample point of calculating sampling signal is according to the acceleration of said distance and SI calculating person's handwriting.
3. the person's handwriting method of adjustment based on the touch-control platform according to claim 1 is characterized in that, the method for said range value according to the adjustment of said acceleration calculation person's handwriting comprises:
ΔW＝ka
Wherein, Δ W is the range value of person's handwriting adjustment, and k is the scale-up factor of presetting, and a is the acceleration of person's handwriting.
4. according to each described person's handwriting method of adjustment of claim 1 to 3, it is characterized in that the said process of said width value being adjusted according to this range value comprises based on the touch-control platform:
Judge the size of said acceleration; If said acceleration greater than 0, then carries out addition with said width value and said range value, if said acceleration less than 0, then deducts said range value from said width value.
5. according to each described person's handwriting method of adjustment of claim 1 to 3, it is characterized in that, saidly said width value adjustment comprised according to this range value based on the touch-control platform:
Pre-set threshold value is judged the size of said acceleration;
If said acceleration then carries out addition with said width value and said range value greater than 0 and absolute value during greater than pre-set threshold value;
If said acceleration then deducts said range value from said width value less than 0 and absolute value during greater than pre-set threshold value.
6. the person's handwriting adjusting gear based on the touch-control platform is characterized in that, comprising:
The width value acquiring unit is used to obtain the width value of the person's handwriting of touch-control platform;
Acceleration obtainment unit is used for obtaining according to sampled signal the acceleration of the person's handwriting of touch-control platform;
The width value adjustment unit is used for the range value according to said acceleration calculation person's handwriting adjustment, and according to this range value said width value is adjusted.
7. the person's handwriting adjusting gear based on the touch-control platform according to claim 6 is characterized in that said acceleration obtainment unit comprises:
The sampled point distance calculation module is used for the distance between the neighbouring sample point of calculating sampling signal;
The acceleration calculation module is used for the acceleration according to said distance and SI calculating person's handwriting.
8. the person's handwriting adjusting gear based on the touch-control platform according to claim 6 is characterized in that, said width value adjustment unit comprises in the process of the range value of adjusting according to said acceleration calculation person's handwriting:
ΔW＝ka
Wherein, Δ W is the range value of person's handwriting adjustment, and k is the scale-up factor of presetting, and a is the acceleration of person's handwriting.
9. according to each described person's handwriting adjusting gear of claim 6 to 8, it is characterized in that said width value adjustment unit comprises based on the touch-control platform:
The range value computing module is used for the range value according to said acceleration calculation person's handwriting adjustment;
Judge module is used to judge the size of said acceleration;
Adjusting module is used for the result according to said judgement, if said acceleration greater than 0, then carries out addition with said width value and said range value, if said acceleration less than 0, then deducts said range value from said width value.
10. according to each described person's handwriting adjusting gear of claim 6 to 8, it is characterized in that said width value adjustment unit comprises based on the touch-control platform:
The range value computing module is used for the range value according to said acceleration calculation person's handwriting adjustment;
The threshold values judge module is used for the size that pre-set threshold value is judged said acceleration;
Adjusting module is used for the result according to said judgement, if said acceleration then carries out addition with said width value and said range value greater than 0 and absolute value during greater than pre-set threshold value; If said acceleration then deducts said range value from said width value less than 0 and absolute value during greater than pre-set threshold value.
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Cited By (11)
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| CN102902407A (en) * | 2012-09-12 | 2013-01-30 | 青岛海信移动通信技术股份有限公司 | Method and equipment for touch handwriting inputting and displaying of touch screen |
| CN103049203A (en) * | 2012-12-17 | 2013-04-17 | 上海海知信息技术有限公司 | Handwriting capturing device, handwriting capturing method and touch screen input system |
| US20130136377A1 (en) * | 2011-11-29 | 2013-05-30 | Samsung Electronics Co., Ltd. | Method and apparatus for beautifying handwritten input |
| CN103150115A (en) * | 2013-03-04 | 2013-06-12 | 广东欧珀移动通信有限公司 | Handwritten stroke processing method, system and mobile terminal on a touch screen |
| CN103870039A (en) * | 2012-12-10 | 2014-06-18 | 联想(北京)有限公司 | Input method and electronic device |
| CN104346091A (en) * | 2013-07-31 | 2015-02-11 | 北京壹人壹本信息科技有限公司 | Handwriting displaying method and device |
| CN106843714A (en) * | 2016-11-15 | 2017-06-13 | 广州视源电子科技股份有限公司 | Method and system for optimizing handwriting of touch pen |
| CN108335340A (en) * | 2017-01-20 | 2018-07-27 | 山西大学 | Pressure touch screen handwriting input is rendered as the method with type feature person's handwriting |
| CN111158505A (en) * | 2018-11-08 | 2020-05-15 | 鸿合科技股份有限公司 | Method and device for writing thick and thin handwriting, and electronic equipment |
| CN112764616A (en) * | 2021-01-22 | 2021-05-07 | 广州文石信息科技有限公司 | Method, device and equipment for accelerating handwriting of electronic ink screen and storage medium |
| CN118015636A (en) * | 2024-02-29 | 2024-05-10 | 祝你云记科技有限公司 | Digital application method and system based on dot matrix intelligent pen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130136377A1 (en) * | 2011-11-29 | 2013-05-30 | Samsung Electronics Co., Ltd. | Method and apparatus for beautifying handwritten input |
| CN102902407B (en) * | 2012-09-12 | 2015-08-05 | 青岛海信移动通信技术股份有限公司 | A kind of touch-screen output display touches the method and apparatus of person's handwriting |
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| CN103150115A (en) * | 2013-03-04 | 2013-06-12 | 广东欧珀移动通信有限公司 | Handwritten stroke processing method, system and mobile terminal on a touch screen |
| CN104346091A (en) * | 2013-07-31 | 2015-02-11 | 北京壹人壹本信息科技有限公司 | Handwriting displaying method and device |
| CN106843714B (en) * | 2016-11-15 | 2020-05-12 | 广州视源电子科技股份有限公司 | Method and system for optimizing handwriting of touch pen |
| CN106843714A (en) * | 2016-11-15 | 2017-06-13 | 广州视源电子科技股份有限公司 | Method and system for optimizing handwriting of touch pen |
| CN108335340A (en) * | 2017-01-20 | 2018-07-27 | 山西大学 | Pressure touch screen handwriting input is rendered as the method with type feature person's handwriting |
| CN108335340B (en) * | 2017-01-20 | 2022-03-18 | 山西大学 | Method for presenting handwriting with type pen characteristic in pressure touch screen handwriting input |
| CN111158505A (en) * | 2018-11-08 | 2020-05-15 | 鸿合科技股份有限公司 | Method and device for writing thick and thin handwriting, and electronic equipment |
| CN112764616A (en) * | 2021-01-22 | 2021-05-07 | 广州文石信息科技有限公司 | Method, device and equipment for accelerating handwriting of electronic ink screen and storage medium |
| CN112764616B (en) * | 2021-01-22 | 2021-11-26 | 广州文石信息科技有限公司 | Method, device and equipment for accelerating handwriting of electronic ink screen and storage medium |
| CN118015636A (en) * | 2024-02-29 | 2024-05-10 | 祝你云记科技有限公司 | Digital application method and system based on dot matrix intelligent pen |
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Application publication date: 20120627 |