CN108021291A - Touch point reliability composite identification method - Google Patents
Touch point reliability composite identification method Download PDFInfo
- Publication number
- CN108021291A CN108021291A CN201710948784.4A CN201710948784A CN108021291A CN 108021291 A CN108021291 A CN 108021291A CN 201710948784 A CN201710948784 A CN 201710948784A CN 108021291 A CN108021291 A CN 108021291A
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- Prior art keywords
- reliability
- touch point
- touch
- identification
- point
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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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- 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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
Abstract
The present invention relates to multimedia technology field.Touch point reliability composite identification method, during touch, when having multiple touch points on touch-screen, at least two identification items in infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point are sheltered from according to the touch point size, shape, touch point recognized and the position relationship of other touch points, the recognition sequence of touch point, touching object, reliability identification is carried out to touch point, the relatively low touch point of reliability is rejected, leaves the high touch point of reliability.
Description
Technical field
The present invention relates to multimedia technology field, and in particular to touching technique.
Background technology
For interactive touch screen, it is a kind of mode for realizing human-computer interaction to carry out touch-control using finger and lettering pen.
Can there are problems that when passing through finger touch, for example be not intended to the finger (middle finger, nameless, little finger of toe) or clothing of touch-control
Thing can touch screen, cause there are multiple touch points on the touchscreen, be not easy to the timely feedback of touch-screen.
The content of the invention
It is an object of the present invention to provide point reliability composite identification method is touched, at least one technology above that solves is asked
Topic.
Technical problem solved by the invention can be realized using following technical scheme：
Touch point reliability composite identification method, it is characterised in that have multiple touches during touch, on touch-screen
It is suitable according to the identification of the position relationship of the touch point size, shape, touch point recognized and other touch points, touch point during point
Sequence, touching object are sheltered from infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point extremely
Few two identification item, reliability identification is carried out to touch point, and the relatively low touch point of reliability is rejected, and leaves that reliability is high to be touched
Touch a little.
By touch point size, shape, the position relationship of touch point and other touch points, touch point recognition sequence, touch
Touch object shelter from infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point at least two
Item identification item, realizes the composite identification to touching point reliability.
Reliability identifies the size identification for including touch point, and according to touch-screen usage scenario, setting touch point is in X and Y-axis
On length and width threshold value, for exceeding or being less than the touch point in the threshold range less than the point reliability that touches of threshold value.
Reliability identification further includes the identification for touching dot shape, according to touch-screen usage scenario, sets effective touch point
Shape.It is such as touch-screen is when only allowing the finger to touch, then non-oval to touch point reliability less than the touch point of ellipse
Reliability.Such as touch-screen, when only allowing the felt pen to touch, circular point shape touches point reliability and is higher than non-circular point shape touch point.
Reliability identification further includes touch point and the identification of the position relationship of other touch points, on the upper side according to use habit
Touch point reliability be higher than touch point on the lower side.And it can be reduced for multiple adjacent touch points, reliability.
Reliability identifies the identification for further including the sequencing that touch point is identified to, for formed objects, identical height
Multiple touch points, first press the touch point being identified to reliability be higher than after the touch point that recognizes.
Reliability identifies the identification for further including the fluorescent tube collection value that touching object is blocked, due to not completely attaching to touch
The touching object meeting permeation parts infrared light on surface, therefore the fluorescent tube collection value at the place that is blocked is higher, reliability is lower.
Reliability identification further includes the identification of other fluorescent tube collection values near the fluorescent tube that touching object is blocked, due to general
Contact object possess clear and definite contact site (such as finger tip, nib), therefore neighbouring other lamps of the fluorescent tube that is blocked of touching object
Pipe would not be blocked, therefore other neighbouring fluorescent tube collection values of fluorescent tube that touching object is blocked are lower, and reliability is lower.
Reliability identification further includes the identification of the history reliability of touch point, if touch point reliability is relatively low, the touch
Point is within following a period of time, and reliability will slowly return to height from low, unless obtained by the other information of the touch point
Reliability is still relatively low, when the reliability of touch point is not in 5s under propradation, rejects the touch point.
Identify that item includes the size identification of touch point, the identification for touching dot shape, the position of touch point and other touch points
The identification of relation；
Identify that item includes the size identification of touch point, the identification for touching dot shape, the position of touch point and other touch points
The identification of relation；Identify that the reliability weight that touch point is obtained with other touch point position relationships is more than the size for identifying touch point
The reliability weight of acquisition, and the reliability weight obtained more than identification touch dot shape；
Identify that the weight for the reliability that the size of touch point obtains and identification touch the power for the reliability that dot shape obtains
The sum of weight is more than the weight for the reliability that identification touch point is obtained with other touch point position relationships；
When recognizing two touch point of A, B on touch-screen, and A touch points obtain reliability according to size and are higher than B touch points root
Reliability is obtained according to size, the reliability that A touch points are obtained according to shape is higher than reliability, the A that B touch points are obtained according to shape
Obtained according to the reliability with the acquisition of the position relationship of B touch points less than B touch points according to the position relationship with A touch points touch point
The reliability obtained；
Then think that the reliability of A touch points is higher than the reliability of B touch points.
It is a to identify that the size of touch point obtains reliability, and it is b that identification, which touches dot shape and obtains reliability, identifies touch point
The reliability obtained with the position relationship of other touch points is c, identifies that the reliability that the recognition sequence of touch point obtains is d, knows
The reliability that other touching object shelters from the collection value acquisition of infrared lamp and other neighbouring infrared lamps is e, and identification touches
The reliability that the history reliability of point obtains is f；
The overall reliability of touch point is (R1a+R2b+R3c+R4d+R5e+R6f)/(R1+R2+R3+R4+R5+R6)；
R1, R2, R3, R4, R5, R6 are the weights of different identification item reliabilitys, and weights are freely set according to usage scenario
Just；
The relatively low touch point of reliability is identified as noise spot, by input system or the pen having shown that out before noise spot
Mark is automatically deleted.
Realize the COMPREHENSIVE CALCULATING of a variety of identification items.
R1, R2, R3, R4, R5, R6 real-time change during touch, easy to have a variety of touch devices can at the same time into
Monitoring accuracy under row touch-control environment.Can also be that R1, R2, R3, R4, R5, R6 are definite value all the time, suitable for being only capable of single touch-control
Device carries out the accuracy guarantee in the environment of touch-control.Such as the overall reliability of touch point for (2a+3b+4c+2d+2e+f)/
14.Realize the COMPREHENSIVE CALCULATING of a variety of identification items.
The recognition sequence of position relationship, touch point when size, shape, touch point and other touch points of touch point, touch
Touch object and shelter from some in infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point
Parameter not as touch point totality reliability calculating parameter when, not as touch point totality reliability calculating parameter it is reliable
Degree is calculated with the overall reliability of 0 substitution touch point.
There is a numerical value of touch point for the same time in the maximum of the reliability of each identification item, and different touch points is same
One time point it is same identification item reliability value be from high to low first term be touch point a numerical value, tolerance be 1 grade difference
Row.
The relatively low touch point of reliability is identified as noise spot, by input system or the pen having shown that out before noise spot
Mark is automatically deleted.
Easy to the accurate feedback to touch-control in writing process is touched.
As a preferred embodiment, the reliability of touch point is calculated according to different usage scenarios.
When usage scenario, which is only limitted to single touch device, carries out touch-control, the reliability of touch point is
Wherein, x is the length in a direction of the touch point recognized, μ be touch point with X equidirectionals
Length threshold, σ are 0.2mm~1mm.
Easy to the touch point length monitored, adjust the reliability value of touch point.
When the scene used only allows finger to touch, the reliability of touch point is the standard deviation 1mm using 9mm as average
Normal distribution parameter；The reliability of touch point isX is the laterally wide angle value in touch point；
When the scene used only allows stylus to touch, the reliability of touch point is that standard deviation is using 3.5mm as average
The parameter of the normal distribution of 0.2mm；That is the reliability of touch point isX is laterally wide for touch point
Angle value.
During easy to there be multiple size touch points, the reliability of different touch points is distinguished.
As another preferred solution, according to the number of the touch point recognized, the reliability of touch point is calculated.
When there being a touch point, the reliability of touch point is a, and the value of a isWherein, x
For the length in a direction of the touch point recognized, μ is being with the length threshold on X equidirectionals, σ for touch point
0.2mm~1mm, R2, R3, R4, R5, R6 are 0；
When there being at least two touch points, the reliability of touch point is R1 (a+b+c+d+e+f), and wherein R1 isWherein, x is the length in a direction of the touch point recognized, μ be touch point with X
Length threshold on equidirectional, σ are 0.2mm~1mm；
When the reliability of touch point is less than setting value, the touch point is rejected, not as effective touch point.
Embodiment
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, below into
One step illustrates the present invention.
Point reliability composite identification method is touched, when having multiple touch points during touch, on touch-screen, according to knowledge
Touch point size, shape, touch point and the position relationship of other touch points, the recognition sequence of touch point, the touching object being clipped to
Shelter from least two identifications in infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point
, reliability identification is carried out to touch point, the relatively low touch point of reliability is rejected, leaves the high touch point of reliability.
By touch point size, shape, the position relationship of touch point and other touch points, touch point recognition sequence, touch
Touch object shelter from infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point at least two
Item identification item, realizes the composite identification to touching point reliability.
Reliability identifies the size identification for including touch point, and according to touch-screen usage scenario, setting touch point is in X and Y-axis
On length and width threshold value, for exceeding or being less than the touch point in the threshold range less than the point reliability that touches of threshold value.
Reliability identification further includes the identification for touching dot shape, according to touch-screen usage scenario, sets effective touch point
Shape.It is such as touch-screen is when only allowing the finger to touch, then non-oval to touch point reliability less than the touch point of ellipse
Reliability.Such as touch-screen, when only allowing the felt pen to touch, circular point shape touches point reliability and is higher than non-circular point shape touch point.
Reliability identification further includes touch point and the identification of the position relationship of other touch points, on the upper side according to use habit
Touch point reliability be higher than touch point on the lower side.And it can be reduced for multiple adjacent touch points, reliability.
Reliability identifies the identification for further including the sequencing that touch point is identified to, for formed objects, identical height
Multiple touch points, first press the touch point being identified to reliability be higher than after the touch point that recognizes.
Reliability identifies the identification for further including the fluorescent tube collection value that touching object is blocked, due to not completely attaching to touch
The touching object meeting permeation parts infrared light on surface, therefore the fluorescent tube collection value at the place that is blocked is higher, reliability is lower.
Reliability identification further includes the identification of other fluorescent tube collection values near the fluorescent tube that touching object is blocked, due to general
Contact object possess clear and definite contact site (such as finger tip, nib), therefore neighbouring other lamps of the fluorescent tube that is blocked of touching object
Pipe would not be blocked, therefore other neighbouring fluorescent tube collection values of fluorescent tube that touching object is blocked are lower, and reliability is lower.
Reliability identification further includes the identification of the history reliability of touch point, if touch point reliability is relatively low, the touch
Point is within following a period of time, and reliability will slowly return to height from low, unless obtained by the other information of the touch point
Reliability is still relatively low, when the reliability of touch point is not in 5s under propradation, rejects the touch point.
Identify that item includes the size identification of touch point, the identification for touching dot shape, the position of touch point and other touch points
The identification of relation；Identify that item includes the size identification of touch point, the identification for touching dot shape, the position of touch point and other touch points
Put the identification of relation；Identify that touch point is more than the big of identification touch point with the reliability weight that other touch point position relationships obtain
The reliability weight of small acquisition, and the reliability weight obtained more than identification touch dot shape；Identify that the size of touch point obtains
Reliability weight and identification touch the sum of weight of reliability that dot shape obtains and be more than identification touch point and touched with other
Touch the weight for the reliability that a position relationship obtains；When recognizing two touch point of A, B on touch-screen, and A touch points are according to size
Obtain reliability and reliability is obtained according to size higher than B touch points, A touch points are touched according to the reliability that shape obtains higher than B
Put the reliability obtained according to shape, A touch points are less than B touch points according to the reliability with the acquisition of the position relationship of B touch points
According to the reliability with the acquisition of the position relationship of A touch points；
Then think that the reliability of A touch points is higher than the reliability of B touch points.
It is a to identify that the size of touch point obtains reliability, and it is b that identification, which touches dot shape and obtains reliability, identifies touch point
The reliability obtained with the position relationship of other touch points is c, identifies that the reliability that the recognition sequence of touch point obtains is d, knows
The reliability that other touching object shelters from the collection value acquisition of infrared lamp and other neighbouring infrared lamps is e, and identification touches
The reliability that the history reliability of point obtains is f；The overall reliability of touch point is (R1a+R2b+R3c+R4d+R5e+R6f)/(R1+
R2+R3+R4+R5+R6)；
R1, R2, R3, R4, R5, R6 are the weights of different identification item reliabilitys, and weights are freely set according to usage scenario
Just；
The relatively low touch point of reliability is identified as noise spot, by input system or the pen having shown that out before noise spot
Mark is automatically deleted.Realize the COMPREHENSIVE CALCULATING of a variety of identification items.
R1, R2, R3, R4, R5, R6 real-time change during touch, easy to have a variety of touch devices can at the same time into
Monitoring accuracy under row touch-control environment.Can also be that R1, R2, R3, R4, R5, R6 are definite value all the time, suitable for being only capable of single touch-control
Device carries out the accuracy guarantee in the environment of touch-control.Such as the overall reliability of touch point for (2a+3b+4c+2d+2e+f)/
14.Realize the COMPREHENSIVE CALCULATING of a variety of identification items.
The recognition sequence of position relationship, touch point when size, shape, touch point and other touch points of touch point, touch
Touch object and shelter from some in infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point
Parameter not as touch point totality reliability calculating parameter when, not as touch point totality reliability calculating parameter it is reliable
Degree is calculated with the overall reliability of 0 substitution touch point.
There is a numerical value of touch point for the same time in the maximum of the reliability of each identification item, and different touch points is same
One time point it is same identification item reliability value be from high to low first term be touch point a numerical value, tolerance be 1 grade difference
Row.
The relatively low touch point of reliability is identified as noise spot, by input system or the pen having shown that out before noise spot
Mark is automatically deleted.Easy to the accurate feedback to touch-control in writing process is touched.
As a preferred embodiment, the reliability of touch point is calculated according to different usage scenarios.
When usage scenario, which is only limitted to single touch device, carries out touch-control, the reliability of touch point is
Wherein, x is the length in a direction of the touch point recognized, μ be touch point with X equidirectionals
Length threshold, σ are 0.2mm~1mm.
Easy to the touch point length monitored, adjust the reliability value of touch point.
When the scene used only allows finger to touch, the reliability of touch point is the standard deviation 1mm using 9mm as average
Normal distribution parameter；The reliability of touch point isX is the laterally wide angle value in touch point；
When the scene used only allows stylus to touch, the reliability of touch point is that standard deviation is using 3.5mm as average
The parameter of the normal distribution of 0.2mm；That is the reliability of touch point isX is laterally wide for touch point
Angle value.
During easy to there be multiple size touch points, the reliability of different touch points is distinguished.
As another preferred solution, according to the number of the touch point recognized, the reliability of touch point is calculated.
When there being a touch point, the reliability of touch point is a, and the value of a isWherein, x
For the length in a direction of the touch point recognized, μ is being with the length threshold on X equidirectionals, σ for touch point
0.2mm~1mm, R2, R3, R4, R5, R6 are 0；
When there being at least two touch points, the reliability of touch point is R1 (a+b+c+d+e+f), and wherein R1 isWherein, x is the length in a direction of the touch point recognized, μ be touch point with X
Length threshold on equidirectional, σ are 0.2mm~1mm；
When the reliability of touch point is less than setting value, the touch point is rejected, not as effective touch point.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. touch point reliability composite identification method, it is characterised in that have multiple touch points during touch, on touch-screen
When, according to the position relationship of the touch point size, shape, touch point that recognize and other touch points, touch point recognition sequence,
Touching object is sheltered from least two in infrared lamp and the neighbouring collection value of other infrared lamps, the history reliability of touch point
Item identification item, reliability identification is carried out to touch point, and the relatively low touch point of reliability is rejected, leaves the high touch of reliability
Point.
2. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification includes touching
Touch size identification a little, according to touch-screen usage scenario, length and width threshold value of the setting touch point on X and Y-axis, for exceeding or small
In the touch point for touching point reliability and being less than in threshold range of threshold value.
3. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification further includes
The identification of dot shape is touched, according to touch-screen usage scenario, sets effective touch dot shape；
When touch-screen only allows finger to touch, then the non-oval point reliability that touches is less than the reliable of oval touch point
Degree；
When touch-screen only allows felt pen to touch, circular point shape touches point reliability and is higher than non-circular point shape touch point.
4. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification further includes
Touch point and the identification of the position relationship of other touch points, touch point reliability on the upper side are higher than touch point on the lower side.
5. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification further includes
The identification for the sequencing that touch point is identified to, for formed objects, mutually level multiple touch points, are first pressed identified
To touch point reliability be higher than after the touch point that recognizes.
6. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification further includes
The identification for the fluorescent tube collection value that touching object is blocked, since the touching object for not completely attaching to touch-surface can permeation parts
Infrared light, therefore the fluorescent tube collection value at the place that is blocked is higher, reliability is lower.
7. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification further includes
The identification of other fluorescent tube collection values near the fluorescent tube that touching object is blocked, since general contact object possesses clear and definite contact
Position, therefore other neighbouring fluorescent tubes of fluorescent tube that touching object is blocked would not be blocked, therefore the fluorescent tube that touching object is blocked
Other neighbouring fluorescent tube collection values are lower, and reliability is lower.
8. touch point reliability composite identification method according to claim 1, it is characterised in that：Reliability identification further includes
The identification of the history reliability of touch point, if touch point reliability is relatively low, the touch point is within following a period of time, reliably
Degree will slowly return to height from low, unless reliability is still relatively low obtained by the other information of the touch point, when touch point
Reliability is not in 5s under propradation, rejects the touch point.
9. touch point reliability composite identification method as claimed in any of claims 1 to 8, it is characterised in that：Know
It is a that the size of other touch point, which obtains reliability, and it is b that identification, which touches dot shape and obtains reliability, identification touch point and other touches
The reliability that the position relationship of point obtains is c, identifies that the reliability that the recognition sequence of touch point obtains is d, identifies touching object
The reliability for sheltering from the collection value acquisition of infrared lamp and other neighbouring infrared lamps is e, identifies that the history of touch point can
The reliability obtained by degree is f；
The overall reliability of touch point is (R1a+R2b+R3c+R4d+R5e+R6f)/(R1+R2+R3+R4+R5+R6)；
R1, R2, R3, R4, R5, R6 are the weights of different identification item reliabilitys, and the height of weights is freely set according to usage scenario；
The relatively low touch point of reliability is identified as noise spot, by before noise spot input system or the person's handwriting that has shown that out from
It is dynamic to delete.
10. touch point reliability composite identification method according to claim 9, it is characterised in that：Each identification item can
There is a numerical value of touch point by the maximum of degree for the same time, different touch points same time point is same identify item can
Value by degree is a numerical value that first term is touch point from high to low, and tolerance is 1 arithmetic progression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948784.4A CN108021291A (en) | 2017-10-12 | 2017-10-12 | Touch point reliability composite identification method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948784.4A CN108021291A (en) | 2017-10-12 | 2017-10-12 | Touch point reliability composite identification method |
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| CN108021291A true CN108021291A (en) | 2018-05-11 |
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ID=62080223
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| CN201710948784.4A Pending CN108021291A (en) | 2017-10-12 | 2017-10-12 | Touch point reliability composite identification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109325464A (en) * | 2018-10-16 | 2019-02-12 | 上海翎腾智能科技有限公司 | A kind of finger point reading character recognition method and interpretation method based on artificial intelligence |
| CN117032500A (en) * | 2023-10-08 | 2023-11-10 | 广州众远智慧科技有限公司 | Touch recognition method and device for infrared touch equipment, storage medium and equipment |
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Application publication date: 20180511 |