CN104615310B - A kind of method and device for determining candidate touch point - Google Patents
A kind of method and device for determining candidate touch point Download PDFInfo
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- CN104615310B CN104615310B CN201510033699.6A CN201510033699A CN104615310B CN 104615310 B CN104615310 B CN 104615310B CN 201510033699 A CN201510033699 A CN 201510033699A CN 104615310 B CN104615310 B CN 104615310B
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Abstract
The embodiment of the invention discloses a kind of method and device for determining candidate touch point, the embodiment of the present invention determines the candidate scan direction of the first transmitting side and the second transmitting side first so that each touch point can farthest be distinguished；Multidomain treat-ment is carried out to each touch area in the candidate scan direction of the first transmitting side, multidomain treat-ment is carried out to each touch area in the candidate scan direction of the second transmitting side；And pass through determine the first transmitting side each subregion candidate scan direction and the second transmitting side each subregion candidate scan direction, further to improve the discrimination between each touch point；And then according to the common factor of the touch area in the candidate scan direction of each subregion of first transmitting side and the touch area in the candidate scan direction of each subregion of second transmitting side, candidate touch point is determined, effectively increases the difference degree of multiple touch points and the positioning precision of touch point.
Description
Technical field
The present invention relates to touch-control display field, more particularly to a kind of method and device for determining candidate touch point.
Background technology
Touch-screen is an electronic system that can detect the presence touched in viewing area and position.Current touch-control skill
In art, the advantages such as infrared touch technology has strong environmental suitability, long lifespan, recognizable touch points more.As shown in figure 1,
For infrared touching screen structure schematic diagram, infrared touch panel outward appearance is a rectangular configuration, by a long side transmitting side 1011, one
Long receiving while 1021,1012, short receiving whiles 1022 of a short side transmitting side form.In long side transmitting side 1011 and short
There are some infrared emission components on edge emitting side 1012, if being corresponding with corresponding long receiving while 1021 and short receiving while 1022
Dry infrared receiver component.
The light that existing Infrared touch screen technology is directly blocked using just clearing off in road (horizontal optical path and vertical optical path)
Road calculates candidate touch point (including all true touch points and terrible point) set, and then each candidate of traversal processing touches successively
Point, checked whether at least one light path of current candidate touch point to be determined is blocked, and sentenced according to by the circumstance of occlusion of light path
Determine whether current candidate touch point is true touch point, the actual touch point set finally given is the son that candidate touches point set
Collection.Only used due to the calculating of candidate touch point and just swept the light path in direction, in the case where multiple spot is closer to the distance, just cleared off road
Cannot be distinguished by multiple spot, cause multipoint positioning resolution ratio it is very low, point precision it is low.For example, Fig. 2, which is touch point, blocks the signal of light path situation
Figure, a plurality of dotted line 202 represent touched point 2011 and the light path that touch point 2012 is blocked, and a plurality of solid line 203 represents not touched
The light path that point 2011 and touch point 2012 are blocked, as, it can be seen that corresponding in long side on scanning direction, cannot be distinguished by touching in Fig. 2
Touch a little 2011 and touch point 2012.Fig. 3 is the candidate touch point signal for just clearing off the road situation of being blocked and obtaining in Fig. 2
Figure, as shown in figure 3, the candidate touch point that the road situation of being blocked obtains that just clears off in Fig. 2 is 3011 and 3012.By Fig. 2
Understood with Fig. 3, obtained candidate touch point 3011 and 3012 has larger difference, point location point with touch point 2011 and 2012
Resolution is very low, and point precision is low.
The content of the invention
The embodiment of the present invention provides a kind of method and device for determining candidate touch point, is solved in the prior art to realize
The light path for just sweeping direction has only been used in the calculating of candidate touch point, and in the case where multiple spot is closer to the distance, just clearing off road can not area
Divide multiple spot, cause the technical problem that multipoint positioning resolution ratio is very low, point precision is low.
The embodiment of the present invention provides a kind of method for determining candidate touch point, and this method is applied to infrared touch panel, described
Infrared touch panel includes the first transmitting side, corresponding with first transmitting side first receives side, the second transmitting side and described the
Second receives side corresponding to two transmitting sides, and this method includes：
According to the touch area number of each scanning direction of first transmitting side, the time of first transmitting side is determined
Select scanning direction；According to the touch area number of each scanning direction of second transmitting side, second transmitting side is determined
Candidate scan direction；
Multidomain treat-ment is carried out to each touch area in the candidate scan direction of first transmitting side；Send out described second
The each touch area for penetrating the candidate scan direction on side carries out multidomain treat-ment；
According to the touch area number of each scanning direction of each subregion of first transmitting side, described first is determined
The candidate scan direction of each subregion of transmitting side；According to touching for each scanning direction of each subregion of second transmitting side
Areal is touched, determines the candidate scan direction of each subregion of second transmitting side；
According to the touch area in the candidate scan direction of each subregion of first transmitting side and second transmitting side
Each subregion candidate scan direction touch area common factor, determine candidate touch point.
The embodiment of the present invention provides a kind of device for determining candidate touch point, and the device is applied to infrared touch panel, described
Infrared touch panel includes the first transmitting side, corresponding with first transmitting side first receives side, the second transmitting side and described the
Second receives side corresponding to two transmitting sides, and the device includes：
Candidate scan direction module is determined, the touch area for each scanning direction according to first transmitting side
Number, determine the candidate scan direction of first transmitting side；According to the Petting Area of each scanning direction of second transmitting side
Domain number, determine the candidate scan direction of second transmitting side；
Division module, each touch area for the candidate scan direction to first transmitting side are carried out at subregion
Reason；Multidomain treat-ment is carried out to each touch area in the candidate scan direction of second transmitting side；
Subregion candidate scan direction module is determined, each scanning side for each subregion according to first transmitting side
To touch area number, determine the candidate scan direction of each subregion of first transmitting side；According to the described second transmitting
The touch area number of each scanning direction of each subregion on side, determine that the candidate of each subregion of second transmitting side sweeps
Retouch direction；
Determine candidate touch point module, for each subregion according to first transmitting side candidate scan direction touch
The common factor of the touch area in the candidate scan direction of each subregion of region and second transmitting side is touched, determines that candidate touches
Point.
The embodiment of the present invention provides a kind of method for determining candidate touch point, it is first determined the candidate for going out the first transmitting side sweeps
Retouch direction and the candidate scan direction of the second transmitting side so that each touch point can farthest be distinguished；To first
Each touch area in the candidate scan direction of transmitting side carries out multidomain treat-ment, to each of the candidate scan direction of the second transmitting side
Individual touch area carries out multidomain treat-ment；And the candidate scan direction of each subregion by determining the first transmitting side and the second transmitting
The candidate scan direction of each subregion on side, further to improve the discrimination between each touch point；And then according to described
The candidate of each subregion of the touch area in the candidate scan direction of each subregion of one transmitting side and second transmitting side sweeps
The common factor of the touch area in direction is retouched, determine candidate touch point, effectively increase difference degree and the touch point of multiple touch points
Positioning precision.
Brief description of the drawings
Fig. 1 is infrared touching screen structure schematic diagram in the prior art；
Fig. 2 blocks light path situation schematic diagram for touch point in the prior art；
Fig. 3 is the candidate touch point schematic diagram that the light path situation of being blocked in Fig. 2 obtains；
Fig. 4 is a kind of schematic flow sheet of the method for determination candidate touch point that the embodiment of the present invention one provides；
One scanning direction schematic diagram of the first transmitting side when Fig. 5 a are 1 pair of 2 scanning in the embodiment of the present invention；
Another scanning direction schematic diagram of first transmitting side when Fig. 5 b are 1 pair of 2 scanning in the embodiment of the present invention；
One scanning direction schematic diagram of the second transmitting side when Fig. 6 a are 1 pair of 2 scanning in the embodiment of the present invention；
Another scanning direction schematic diagram of second transmitting side when Fig. 6 b are 1 pair of 2 scanning in the embodiment of the present invention；
Fig. 7 a are the touch area schematic diagram of first the first scanning direction of transmitting side in the embodiment of the present invention；
Fig. 7 b are the touch area schematic diagram of first the second scanning direction of transmitting side in the embodiment of the present invention；
Fig. 8 a are the touch area schematic diagram of second the first scanning direction of transmitting side in the embodiment of the present invention；
Fig. 8 b are the touch area schematic diagram of second the second scanning direction of transmitting side in the embodiment of the present invention；
Fig. 9 is that the subregion of the first transmitting side in the embodiment of the present invention divides schematic diagram；
Figure 10 is that subregion candidate scan direction schematic diagram is determined in the embodiment of the present invention；
Figure 11 is the candidate touch point schematic diagram determined in the embodiment of the present invention；
Figure 12 is a kind of schematic device for determination candidate touch point that the embodiment of the present invention two provides.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Embodiment one
Fig. 4 is the schematic flow sheet corresponding to a kind of method for determination candidate touch point that the embodiment of the present invention one provides,
This method is applied to infrared touch panel, and the infrared touch panel includes the first transmitting side, corresponding with first transmitting side the
One receives side, and the second transmitting side, corresponding with second transmitting side second receive side, first transmitting side and described second
Transmitting side is provided with infrared emission component, described first receive while and described second receive while be provided with infrared receiver component, this method
Including step 401 to step 404：
Step 401, according to the touch area number of each scanning direction of first transmitting side, first hair is determined
Penetrate the candidate scan direction on side；According to the touch area number of each scanning direction of second transmitting side, described is determined
The candidate scan direction of two transmitting sides；
Step 402, multidomain treat-ment is carried out to each touch area in the candidate scan direction of first transmitting side；To institute
The each touch area for stating the candidate scan direction of the second transmitting side carries out multidomain treat-ment；
Step 403, according to the touch area number of each scanning direction of each subregion of first transmitting side, it is determined that
The candidate scan direction of each subregion of first transmitting side；According to each scanning of each subregion of second transmitting side
The touch area number in direction, determine the candidate scan direction of each subregion of second transmitting side；
Step 404, according to the touch area in the candidate scan direction of each subregion of first transmitting side and described
The common factor of the touch area in the candidate scan direction of each subregion of two transmitting sides, determines candidate touch point.
In the embodiment of the present invention, in 1 couple of n (n>=1) in scan mode, for each infrared emission component, every light
Road possesses different angles；For a specific infrared emission component, each angle of the n bar light paths corresponding to it is swept for one
Retouch direction.Therefore, in 1 couple of n scan mode, n scanning direction, one group of scan angle of optical routing of a scanning direction are had
Spend identical parallel light path composition；As shown in Figure 5 a, a scanning direction schematic diagram of the first transmitting side when scanning for 1 Dui 2, such as
Shown in Fig. 5 b, another scanning direction schematic diagram of the first transmitting side when being 1 pair of 2 scanning in the embodiment of the present invention；Such as Fig. 6 a institutes
Show, a scanning direction schematic diagram of the second transmitting side when scanning for 1 Dui 2, be 1 pair 2 in the embodiment of the present invention as shown in Figure 6 b
Another scanning direction schematic diagram of second transmitting side during scanning.
One specific scanning direction, it correspond to one group of parallel sweep light path；When the situation of touch occurs, each touch point
Continuous some in these parallel light paths will be sheltered from, these light paths being continuously blocked are one under this scanning direction
Touch area；Wherein, in the light path being continuously blocked, first light path being blocked is the beginning boundary of this touch area, most
The light path that the latter is blocked, sequentially can be with self-defined to terminate border, and the present invention is not limited this.
Specifically, before step 401, the number n of scanning direction and the angle of each scanning direction are set (as schemed
5a- Fig. 5 b show 2 scanning directions of the first transmitting side, and Fig. 6 a- Fig. 6 b show 2 scanning directions of the second transmitting side)；
The infrared emission component of the first transmitting side and the second transmitting side is driven to carry out the light of each scanning direction within a scan period
Scan on road.
In step 401, all touch areas of the first transmitting side (long side) single scanning direction are counted, are then united successively
All touch areas of other scanning directions of the first transmitting side are counted, until all scanning directions of the first transmitting side have been located
Reason.Second transmitting side (short side) carries out same treatment with the first transmitting side；After processing is completed, the first transmitting side and second are obtained
Touch area and touch area number of the transmitting side under each scanning direction.Touch i-th of scanning direction of the first transmitting side
Touch areal Ni (1<=i<=n) represent, for example, N1 represents the touch area of first the first scanning direction of transmitting side
Number；The touch area number Mj (1 of j-th of scanning direction of the second transmitting side<=j<=n) represent, for example, M1 represents second
The touch area number of the scanning direction of transmitting side first.
As shown in figs. 7 a and 7b, it is the signal of the touch area of first the first scanning direction of transmitting side and the second scanning direction
Figure, dotted line is the light path that touched point is blocked in figure, and solid line is the light path that non-touched point is blocked, from Fig. 7 a and Fig. 7 b,
N1=3, N2=2；As figures 8 a and 8 b show, it is second the first scanning direction of transmitting side and the touch area of the second scanning direction
Schematic diagram, dotted line is the light path that touched point is blocked in figure, and solid line is the light path that non-touched point is blocked, can by Fig. 8 a and Fig. 8 b
Know, M1=4, M2=2.
For the first transmitting side, each scanning direction is traveled through, finds out the largest number of scanning direction k (1 in touch area
<=k<=n), now Nk>=Ni (1<=i<=n and i are swept not equal to k) using scanning direction k as the candidate of the first transmitting side
Direction is retouched, other directions of the first transmitting side are the non-candidate scanning direction of the first transmitting side；Equally, for the second transmitting side,
Each scanning direction is traveled through, finds out the largest number of scanning direction p (1 in touch area<=p<=n), now Mp>=Mj (1
<=j<=n and j are not equal to p), the candidate scan direction using scanning direction p as the second transmitting side, the second transmitting side other
Direction is the non-candidate scanning direction of the second transmitting side.
As shown in figs. 7 a and 7b, N1 is more than N2, and is through analysis, each scanning direction of the first transmitting side of traversal, N1
Touch area number maximum, therefore candidate scan direction that can be using the first scanning direction corresponding to N1 as the first transmitting side；
For the second transmitting side, the touch area number of more each scanning direction, by sweeping corresponding to the number maximum of touch area
Retouch candidate scan direction of the direction as second transmitting side；As figures 8 a and 8 b show, M1 is more than M2, and through analyzing, time
Each scanning direction of the second transmitting side is gone through, M1 is touch area number maximum, therefore can be by the first scanning side corresponding to M1
To the candidate scan direction as the second transmitting side.
In step 402, multidomain treat-ment is carried out to each touch area in the candidate scan direction of first transmitting side,
N number of subregion of the first transmitting side is obtained, wherein, N is more than or equal to 1；To each of the candidate scan direction of second transmitting side
Touch area carries out multidomain treat-ment, obtains M subregion of the second transmitting side, wherein, M is more than or equal to 1.
Specifically, the candidate scan direction k of the first transmitting side touch area is subjected to subregion according to distance threshold T, point
Area's rule is as follows：The distance between candidate scan direction k center line of any two touch area of the first transmitting side is determined,
Two touch areas of the distance less than distance threshold T are divided into the same subregion of first transmitting side；Such as Fig. 9
It is shown, it is that the subregion of the first transmitting side divides schematic diagram, after the first transmitting side carries out candidate scan direction k light path scanning, quilt
The light path that touch point 901 is blocked forms the first touch area, and the light path that touched point 902 is blocked forms the second touch area, quilt
The light path that touch point 903 and touch point 904 are blocked forms the 3rd touch area, it is assumed that distance threshold T=5, the first touch area
The distance between second touch area is 4, the distance between the second touch area and the 3rd touch area 10, is then touched the 3rd
Region division is touched into the first subregion of the first transmitting side, the first touch area and the second touch area are divided into the first transmitting
In second subregion on side.
Similarly, determine between the center line of the candidate scan direction p of the second transmitting side any two touch area away from
From two touch areas that the distance is less than to distance threshold T are divided into the same subregion of second transmitting side.
In step 403, for the first subregion of first transmitting side, according to each scanning of first transmitting side
The touch area number in direction, determine the scanning direction conduct corresponding to the touch area number maximum in first subregion
The candidate scan direction of first subregion；For the second subregion of second transmitting side, according to second transmitting side
The touch area number of each scanning direction, determine the scanning corresponding to the touch area number maximum in second subregion
Candidate scan direction of the direction as second subregion.
Specifically, increase resolution is carried out in each subregion：For the first subregion of first transmitting side, according to institute
The touch area number of each scanning direction of the first transmitting side is stated, if the touch area number in the presence of another scanning direction k2
More than scanning direction k the first subregion touch area number, and scanning direction k2 touch area number be the first subregion in
Touch area number maximum, then the candidate scan direction using scanning direction k2 as the first subregion of the first transmitting side；Using
Identical method, handle remaining subregion of the first transmitting side.As shown in Figure 10, to determine subregion candidate scan direction schematic diagram,
The figure includes touch point 1001, touch point 1002, touch point 1003 and touch point 1004.For the of first transmitting side
One subregion, after candidate scan direction k light path scanning is carried out, the light path that touched point 1003 and touch point 1004 are blocked is formed
One touch area, after the light path for being scanned direction k2 scans, light path that touched point 1003 and touch point 1004 are blocked
Two touch areas are formed, and determine that scanning direction k2 touch area number is touch area number in the first subregion through analysis
Maximum, therefore candidate scan direction that can be using scanning direction k2 as the first subregion of the first transmitting side.
Similarly, for the second subregion of second transmitting side, according to each scanning direction of second transmitting side
Touch area number, if being more than scanning direction p touching in the second subregion in the presence of another scanning direction p2 touch area number
Areal is touched, and scanning direction p2 touch area number is touch area number maximum in the second subregion, then will scanning
Candidate scan directions of the direction p2 as the second subregion of the second transmitting side；Using identical method, the second transmitting side is handled
Remaining subregion.
In step 404, each touch area in the candidate scan direction of each subregion of first transmitting side is determined
Center line and second transmitting side each subregion candidate scan direction each touch area center line；By described in
The center line of each touch area in the candidate scan direction of each subregion of the first transmitting side and second transmitting side it is each
The intersection point of the center line of each touch area in the candidate scan direction of individual subregion is as the candidate touch point.Such as Figure 11 institutes
Show, for the candidate touch point schematic diagram determined.In the figure, it is assumed that by each touch in the candidate scan direction of the second transmitting side
Region division is into a subregion, for the first subregion of the first transmitting side, according to the candidate of the first subregion of the first transmitting side
Each touch area of scanning direction and the intersection point of the center line of each touch area in the candidate scan direction of two transmitting sides, can
Determine candidate touch point 1101, candidate touch point 1102, candidate touch point 1103 and candidate touch point 1104.
The candidate touch point determined in step 404 includes true touch point and non-genuine touch point (terrible point), therefore
, need to be by algorithm to whole scanning letter to obtain real touch point from the candidate touch point determined after step 404
Breath is handled, and so as to orient true touch point, removes terrible point.
The embodiment of the present invention provides a kind of method for determining candidate touch point, it is first determined the candidate for going out the first transmitting side sweeps
Retouch direction and the candidate scan direction of the second transmitting side so that each touch point can farthest be distinguished；To first
Each touch area in the candidate scan direction of transmitting side carries out multidomain treat-ment, to each of the candidate scan direction of the second transmitting side
Individual touch area carries out multidomain treat-ment；And the candidate scan direction of each subregion by determining the first transmitting side and the second transmitting
The candidate scan direction of each subregion on side, further to improve the discrimination between each touch point；And then according to described
The candidate of each subregion of the touch area in the candidate scan direction of each subregion of one transmitting side and second transmitting side sweeps
The common factor of the touch area in direction is retouched, determine candidate touch point, effectively increase difference degree and the touch point of multiple touch points
Positioning precision.
For above method flow, the embodiment of the present invention also provides a kind of device for determining candidate touch point, the device
Particular content is referred to above method implementation.
Embodiment two
Figure 12 is a kind of schematic device for determination candidate touch point that the embodiment of the present invention two provides, and the device is applied to
Infrared touch panel, the infrared touch panel include the first transmitting side, it is corresponding with first transmitting side first reception side, second
Transmitting side, corresponding with second transmitting side second receive side, and first transmitting side and second transmitting side are provided with red
Outer radiated element, it is described first receive while and it is described second receive while be provided with infrared receiver component, the device includes：
Candidate scan direction module 1201 is determined, the Petting Area for each scanning direction according to first transmitting side
Domain number, determine the candidate scan direction of first transmitting side；According to touching for each scanning direction of second transmitting side
Areal is touched, determines the candidate scan direction of second transmitting side；
Division module 1202, each touch area for the candidate scan direction to first transmitting side carry out subregion
Processing；Multidomain treat-ment is carried out to each touch area in the candidate scan direction of second transmitting side；
Subregion candidate scan direction module 1203 is determined, for being swept according to each of each subregion of first transmitting side
The touch area number in direction is retouched, determines the candidate scan direction of each subregion of first transmitting side；According to described second
The touch area number of each scanning direction of each subregion of transmitting side, determine the time of each subregion of second transmitting side
Select scanning direction；
Determine that candidate touches point module 1204, the candidate scan direction for each subregion according to first transmitting side
Touch area and second transmitting side each subregion candidate scan direction touch area common factor, determine that candidate touches
Touch a little.
It is preferred that the determination candidate scan direction module 1201 is specifically used for：
It is according to the touch area number of each scanning direction of first transmitting side, the touch area number is maximum
Candidate scan direction of the corresponding scanning direction of value as first transmitting side；
It is according to the touch area number of each scanning direction of second transmitting side, the touch area number is maximum
Candidate scan direction of the corresponding scanning direction of value as second transmitting side.
It is preferred that the division module 1202 is specifically used for：
The distance between center line of any two touch area in candidate scan direction of the first transmitting side is determined, by institute
Two touch areas that distance is stated less than preset threshold value are divided into the same subregion of first transmitting side；
The distance between center line of any two touch area in candidate scan direction of the second transmitting side is determined, by institute
Two touch areas that distance is stated less than preset threshold value are divided into the same subregion of second transmitting side.
It is preferred that the beginning boundary of each subregion of first transmitting side and termination border are parallel to the described first transmitting
The candidate scan direction on side；
Time of the beginning boundary of each subregion of second transmitting side with termination border parallel to second transmitting side
Select scanning direction.
It is preferred that the beginning boundary of each subregion of first transmitting side is quilt in the subregion of first transmitting side
First sidelight road of the parallel light path blocked, the parallel light path for terminating border to be blocked in the subregion of first transmitting side
The second sidelight road；
The beginning boundary of each subregion of second transmitting side is what is be blocked in the subregion of second transmitting side
First sidelight road of parallel light path, the second of the parallel light path for terminating border to be blocked in the subregion of second transmitting side
Sidelight road.
It can be seen from the above：The embodiment of the present invention provides a kind of method for determining candidate touch point, it is first determined
Go out the candidate scan direction of the first transmitting side and the candidate scan direction of the second transmitting side so that each touch point can obtain most
The differentiation of big degree；Multidomain treat-ment is carried out to each touch area in the candidate scan direction of the first transmitting side, launched second
Each touch area in the candidate scan direction on side carries out multidomain treat-ment；And the time of each subregion by determining the first transmitting side
The candidate scan direction of each subregion of scanning direction and the second transmitting side is selected, further to improve the area between each touch point
Indexing；And then the touch area according to the candidate scan direction of each subregion of first transmitting side and second transmitting side
Each subregion candidate scan direction touch area common factor, determine candidate touch point, effectively increase multiple touch points
Difference degree and touch point positioning precision.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method or computer program product.
Therefore, the present invention can be using the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Form.Deposited moreover, the present invention can use to can use in one or more computers for wherein including computer usable program code
The shape for the computer program product that storage media is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of method for determining candidate touch point, this method is applied to infrared touch panel, and the infrared touch panel includes first
Transmitting side, it is corresponding with first transmitting side first receive side, the second transmitting side, with second transmitting side corresponding second
Receive side, it is characterised in that this method includes：
According to the touch area number of each scanning direction of first transmitting side, determine that the candidate of first transmitting side sweeps
Retouch direction；According to the touch area number of each scanning direction of second transmitting side, the time of second transmitting side is determined
Select scanning direction；The touch area number of any scanning direction refers to use any scanning side in each scanning direction
To light path be scanned when the number in region that is formed of the light path that is continuously blocked；
Multidomain treat-ment is carried out to each touch area in the candidate scan direction of first transmitting side, obtains first transmitting
Each subregion on side, the either partition in each subregion of first transmitting side include the candidate scan of first transmitting side
At least one touch area under direction；Subregion is carried out to each touch area in the candidate scan direction of second transmitting side
Processing, obtains each subregion of second transmitting side, and the either partition in each subregion of second transmitting side includes institute
State at least one touch area under the candidate scan direction of the second transmitting side；
According to the touch area number of each scanning direction of each subregion of first transmitting side, first transmitting is determined
The candidate scan direction of each subregion on side；According to the Petting Area of each scanning direction of each subregion of second transmitting side
Domain number, determine the candidate scan direction of each subregion of second transmitting side；
According to each of the touch area in the candidate scan direction of each subregion of first transmitting side and second transmitting side
The common factor of the touch area in the candidate scan direction of individual subregion, determines candidate touch point.
2. the method as described in claim 1, it is characterised in that each scanning direction according to first transmitting side
Touch area number, the candidate scan direction of first transmitting side is determined, including：
According to the touch area number of each scanning direction of first transmitting side, by the touch area number maximum institute
Candidate scan direction of the corresponding scanning direction as first transmitting side；
The touch area number of each scanning direction according to second transmitting side, determine the time of second transmitting side
Scanning direction is selected, including：
According to the touch area number of each scanning direction of second transmitting side, by the touch area number maximum institute
Candidate scan direction of the corresponding scanning direction as second transmitting side.
3. the method as described in claim 1, it is characterised in that the candidate scan direction to first transmitting side it is each
Individual touch area carries out multidomain treat-ment, including：
Determine the distance between center line of any two touch area in candidate scan direction of the first transmitting side, will it is described away from
It is divided into from two touch areas less than preset threshold value in the same subregion of first transmitting side；
Multidomain treat-ment is carried out to each touch area in the candidate scan direction of second transmitting side, including：
Determine the distance between center line of any two touch area in candidate scan direction of the second transmitting side, will it is described away from
It is divided into from two touch areas less than preset threshold value in the same subregion of second transmitting side.
4. method as claimed in claim 3, it is characterised in that the beginning boundary of each subregion of first transmitting side and end
Only candidate scan direction of the border parallel to first transmitting side；
The beginning boundary of each subregion of second transmitting side and termination border are swept parallel to the candidate of second transmitting side
Retouch direction.
5. method as claimed in claim 4, it is characterised in that the beginning boundary of each subregion of first transmitting side is institute
The first sidelight road of the parallel light path being blocked in the subregion of the first transmitting side is stated, terminates border as first transmitting side
Second sidelight road of the parallel light path being blocked in the subregion；
The beginning boundary of each subregion of second transmitting side is parallel to be blocked in the subregion of second transmitting side
First sidelight road of light path, border is terminated as the second sidelight of the parallel light path being blocked in the subregion of second transmitting side
Road.
6. a kind of device for determining candidate touch point, the device is applied to infrared touch panel, and the infrared touch panel includes first
Transmitting side, it is corresponding with first transmitting side first receive side, the second transmitting side, with second transmitting side corresponding second
Receive side, it is characterised in that the device includes：
Candidate scan direction module is determined, for the touch area number of each scanning direction according to first transmitting side,
Determine the candidate scan direction of first transmitting side；According to the touch area of each scanning direction of second transmitting side
Number, determine the candidate scan direction of second transmitting side；The touch area of any scanning direction in each scanning direction
Number refers in the region that the light path being continuously blocked when being scanned using the light path of any scanning direction is formed
Number；
Division module, each touch area for the candidate scan direction to first transmitting side carry out multidomain treat-ment, obtained
To each subregion of first transmitting side, the either partition in each subregion of first transmitting side includes the described first hair
Penetrate at least one touch area in the candidate scan direction on side；Each touch to the candidate scan direction of second transmitting side
Region carries out multidomain treat-ment, obtains each subregion of second transmitting side, appointing in each subregion of second transmitting side
One subregion includes at least one touch area in the candidate scan direction of second transmitting side；
Subregion candidate scan direction module is determined, each scanning direction for each subregion according to first transmitting side
Touch area number, determine the candidate scan direction of each subregion of first transmitting side；According to second transmitting side
The touch area number of each scanning direction of each subregion, determine the candidate scan side of each subregion of second transmitting side
To；
Determine that candidate touches point module, the Petting Area for the candidate scan direction of each subregion according to first transmitting side
The common factor of the touch area in the candidate scan direction of each subregion of domain and second transmitting side, determines candidate touch point.
7. device as claimed in claim 6, it is characterised in that the determination candidate scan direction module is specifically used for：
According to the touch area number of each scanning direction of first transmitting side, by the touch area number maximum institute
Candidate scan direction of the corresponding scanning direction as first transmitting side；
According to the touch area number of each scanning direction of second transmitting side, by the touch area number maximum institute
Candidate scan direction of the corresponding scanning direction as second transmitting side.
8. device as claimed in claim 6, it is characterised in that the division module is specifically used for：
Determine the distance between center line of any two touch area in candidate scan direction of the first transmitting side, will it is described away from
It is divided into from two touch areas less than preset threshold value in the same subregion of first transmitting side；
Determine the distance between center line of any two touch area in candidate scan direction of the second transmitting side, will it is described away from
It is divided into from two touch areas less than preset threshold value in the same subregion of second transmitting side.
9. device as claimed in claim 8, it is characterised in that the beginning boundary of each subregion of first transmitting side and end
Only candidate scan direction of the border parallel to first transmitting side；
The beginning boundary of each subregion of second transmitting side and termination border are swept parallel to the candidate of second transmitting side
Retouch direction.
10. device as claimed in claim 9, it is characterised in that the beginning boundary of each subregion of first transmitting side is
First sidelight road of the parallel light path being blocked in the subregion of first transmitting side, termination border are first transmitting side
The subregion in the second sidelight road of parallel light path for being blocked；
The beginning boundary of each subregion of second transmitting side is parallel to be blocked in the subregion of second transmitting side
First sidelight road of light path, border is terminated as the second sidelight of the parallel light path being blocked in the subregion of second transmitting side
Road.
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| CN201510033699.6A CN104615310B (en) | 2015-01-23 | 2015-01-23 | A kind of method and device for determining candidate touch point |
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| CN201510033699.6A CN104615310B (en) | 2015-01-23 | 2015-01-23 | A kind of method and device for determining candidate touch point |
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| CN104615310B true CN104615310B (en) | 2017-11-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105094453B (en) * | 2014-04-17 | 2019-06-14 | 青岛海信电器股份有限公司 | A kind of touch screen multipoint positioning method, device and touch-screen equipment |
| CN105335020B (en) * | 2014-08-15 | 2018-09-25 | 青岛海信电器股份有限公司 | A kind of touch point recognition methods and device |
| CN104866143B (en) * | 2015-05-14 | 2017-12-08 | 青岛海信电器股份有限公司 | The determination method, apparatus and touch-screen equipment of a kind of touch point |
| CN105260064B (en) * | 2015-10-15 | 2018-09-28 | 青岛海信电器股份有限公司 | A kind of touch point identification method and device and display equipment |
| CN105487712B (en) * | 2015-12-02 | 2018-08-28 | 青岛海信电器股份有限公司 | A kind of method, apparatus and touch-screen equipment of the candidate touch point of positioning |
| CN105404433B (en) * | 2015-12-04 | 2019-06-07 | 青岛海信电器股份有限公司 | A kind of touch control identification method and display device based on infrared touch panel |
| CN105824478B (en) * | 2016-05-30 | 2019-02-19 | 青岛海信电器股份有限公司 | Touch localization method and touch screen |
| CN113126827B (en) * | 2019-12-31 | 2022-09-09 | 青岛海信商用显示股份有限公司 | Touch identification method of touch display device and related equipment |
| CN111708456A (en) * | 2020-06-17 | 2020-09-25 | 青岛海信商用显示股份有限公司 | Display device and touch area determination method |
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Effective date of registration: 20180522 Address after: 266510 No. 218, Qian Wan Gang Road, Huangdao District, Qingdao, Shandong. Patentee after: Qingdao Hisense commercial display Limited by Share Ltd Address before: 266100 Zhuzhou Road, Laoshan District, Qingdao, Shandong Province, No. 151 Patentee before: Qingdao Hisense Electric Co., Ltd. |