CN109634455A - A kind of calibration method and calibration system based on touch screen - Google Patents
A kind of calibration method and calibration system based on touch screen Download PDFInfo
- Publication number
- CN109634455A CN109634455A CN201811454447.0A CN201811454447A CN109634455A CN 109634455 A CN109634455 A CN 109634455A CN 201811454447 A CN201811454447 A CN 201811454447A CN 109634455 A CN109634455 A CN 109634455A
- Authority
- CN
- China
- Prior art keywords
- point
- calibration
- touch
- coordinate
- touch screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention proposes a kind of calibration methods based on touch screen, calibration region including obtaining user's selection, touch the calibration region, obtain the coordinate of the touch point in the calibration region, obtain the coordinate of the corresponding calibration point in all touch points, according to the coordinate of the coordinate of touch point and calibration point, the step of obtaining touch point is repeated later, until after obtaining at least three touch point, the corresponding relationship function of the coordinate of all touch points and the coordinate of calibration point is determined using calibration algorithm, the feature operation of the corresponding calibration point of user touch point is finally executed according to the corresponding relationship function.The principle for touching error the present invention is based on acquisition improves calibration accuracy by partial checksum.The invention also provides a kind of calibration systems based on touch screen.
Description
Technical field
The infrared touch-control field of the present invention, more particularly to a kind of calibration method and calibration system based on touch screen.
Background technique
Existing touch-control system includes touch one-piece machine and touch blank.Touch system needed before use to touch screen into
Row calibration causes user to click the response bit of position and screen if touch operation can not be realized accurately without calibration
It is equipped with deviation, and calibrating is usually the logical mapping relations for adjusting touch screen click on area and display screen to repair touch error.No
Same touch-control system uses different methods, in the prior art, the mapping relations of touch screen and display screen to the calibration of touch screen
It is that the universe of touching box corresponds to the universe of display screen.Such as 4 points of calibrations, i.e., four points, user are shown on screen specific position
It needs successively to click this four points, realizes the calibration of touch screen.
But it is a plane that 4 calibration methods, which are based on touch screen, but if the bending of screen physics frame, height touching
Touching screen is an irregular linear mapping area, even if touch screen and four angle alignment of display screen, as touch screen is curved
Song causes intermediate touch area calibration error occur；If but occurring, regional area is not punctual, and four general fixed point calibrations are with regard to nothing
Method is calibrated.In addition, 4 calibration methods are by once mapping completion, for user in point touching point, finger clicks one
Surely there is error, therefore calibration can all leave error every time, user can not experience the presence of error during calibration.And
When user's pressure is smaller, click location can not be accurately identified.From the foregoing, it will be observed that existing calibration method is asked there are calibration accuracy is low
Topic.
Summary of the invention
The purpose of the present invention is to provide a kind of calibration method and calibration system based on touch screen, to solve the prior art
The low problem of alignment precision.To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of calibration method based on touch screen, comprising the following steps:
S1: the calibration region of user's selection is obtained；
S2: touching the calibration region, obtains the coordinate of the touch point in the calibration region；
S3: the coordinate of the corresponding calibration point in the touch point is obtained；
S4: returning to step S2, until obtaining the coordinate of at least three touch points in calibration region；
S5: according to the coordinate of the coordinate of touch point and calibration point, using calibration algorithm determine the coordinate of the touch point with
The corresponding relationship function of the coordinate of calibration point；
S6: the feature operation of the corresponding calibration point in touch point is executed according to corresponding relationship function.
Preferably, the calibration region includes the multiple subregions for forming touch screen.
Preferably, the calibration point is the display point on display screen.
Preferably, the step S3 specifically:
S31: the coordinate of the corresponding mapping point in any one touch point is obtained；The mapping point is the display point on display screen；
S32: mapping point is clicked, the coordinate of corresponding calibration point is obtained；The calibration point is the point on touch screen.
Preferably, in step s 4, the number of the touch point is 3.
Preferably, in step S2 specifically:
S21: the received infrared signal of reception device group of infrared ray is obtained；The reception device group of infrared ray and infrared ray
The side of the touch screen is arranged in emitter group；
S22: the touch point of user is determined according to infrared signal.
The invention also provides a kind of calibration systems based on touch screen, comprising:
Calibration region obtains module, obtains the calibration region of user's selection；
Infrared signal obtains module, for obtaining the received infrared signal of reception device group of infrared ray；Infrared ray
The side of the touch screen is arranged in reception device group and the emitter group of infrared ray；
Touch point coordinate obtaining module, the coordinate of the touch point for determining user according to the infrared signal；
Calibration point coordinate obtaining module, for obtaining the coordinate of the corresponding calibration point in each touch point；
Corresponding relationship function determination module, for utilizing according to the coordinates of all touch points and the coordinate of corresponding calibration point
Calibration algorithm determines the coordinate of touch point and the corresponding relationship function of the coordinate of corresponding calibration point；
Execution module, for executing the corresponding touch screen calibration point of user touch point according to the corresponding relationship function
Feature operation.
Preferably, the corresponding relationship function determination module includes the first submodule and second submodule；First son
Module is used to determine the corresponding relationship function between touch point and calibration point；The second submodule is for determining touch point, reflecting
Corresponding relationship function between exit point and calibration point.
It preferably, further comprise that mapping point coordinate obtains module；For obtaining the corresponding mapping point in each touch point
Coordinate.
Compared with prior art, advantages of the present invention are as follows:
1) it realizes local alignment, improves calibration accuracy.It is several with display screen that touch screen pre-selection is arranged to several regions
A region is corresponding, and user clicks the calibration region for needing to calibrate, to reduce touch screen bending or piece calibration bring error.
2) school is obtained by point touching point and mapping point corresponding with touch point based on the principle for repairing touch error
On schedule, i.e., calibration point is obtained by touch point by mapping twice.If the mapping relations of touch screen and display screen have error, school
It is not overlapped with touch point on schedule, so that touch error is collected, it, can be to touching after collecting at least three touch errors
The calibration region for touching screen is finely adjusted to eliminate touch error.Avoid as a result, user's pressure it is smaller when click location can not be quasi-
Really the phenomenon that identification, to improve calibration accuracy.
Detailed description of the invention
Fig. 1 is a kind of flow chart of calibration method based on touch screen of one embodiment of the invention.
Fig. 2 is the structure chart of the calibration system based on touch screen of one embodiment of the invention.
Wherein, 1- calibration region obtains module, and 2- infrared signal obtains module, the touch point 3- coordinate obtaining module, 4-
Mapping point coordinate obtains module, 5- calibration point coordinate obtaining module, 6- corresponding relationship function determination module, 7- execution module.
Specific embodiment
A kind of calibration method and calibration system based on touch screen of the invention is carried out below in conjunction with schematic diagram more detailed
Thin description, which show the preferred embodiment of the present invention, it should be appreciated that those skilled in the art can modify and be described herein
The present invention, and still realize advantageous effects of the invention.Therefore, following description should be understood as those skilled in the art
Member's is widely known, and is not intended as limitation of the present invention.
As shown in Figure 1, a kind of calibration method based on touch screen, comprising the following steps:
S1: the calibration region of user's selection is obtained；
S2: touching the calibration region, obtains the coordinate of the touch point in the calibration region；The calibration region includes group
At multiple subregions of touch screen；
S3: the coordinate of the corresponding calibration point in the touch point is obtained；
S4: returning to step S2, until obtaining the coordinate of at least three touch points in subregion；
S5: according to the coordinate of the coordinate of touch point and calibration point, using calibration algorithm determine the coordinate of the touch point with
The corresponding relationship function of the coordinate of calibration point；
S6: the feature operation of the corresponding calibration point in touch point is executed according to corresponding relationship function.
In the present embodiment, step S2 specifically:
S21: the received infrared signal of reception device group of infrared ray is obtained；The reception device group of infrared ray and infrared ray
The side of the touch screen is arranged in emitter group；
S22: the touch point of user is determined according to infrared signal.
In the present embodiment, step S3 specifically:
S31: the coordinate of the corresponding mapping point in touch point is obtained；Mapping point is the display point on display screen；It completes to touch
First time mapping between screen and display screen；
S32: mapping point is clicked, the coordinate of corresponding calibration point is obtained；Calibration point is the point on touch screen；Complete display screen
Second of mapping between touch screen.
In other embodiments except this embodiment, calibration point is the display point on display screen.
The present embodiment also proposed a kind of calibration system based on touch screen, comprising: calibration region obtains module 1, infrared
Line signal acquisition module 2, touch point coordinate obtaining module 3, mapping point coordinate obtain module 4, calibration point coordinate obtaining module 5,
Corresponding relationship function determination module 6 and execution module 7；Wherein,
Calibration region obtains the calibration region that module 1 obtains user's selection；
Infrared signal obtains the received infrared signal of reception device group that module 2 is used to obtain infrared ray；Infrared ray
The side of the touch screen is arranged in reception device group and the emitter group of infrared ray；
Touch point coordinate obtaining module 3 is used to determine the coordinate of the touch point of user according to infrared signal；
Mapping point coordinate obtains the coordinate that module 4 is used to obtain the corresponding mapping point in each touch point；
Calibration point coordinate obtaining module 5 is used to obtain the coordinate of the corresponding calibration point in each touch point, i.e., each is reflected
The coordinate of the corresponding calibration point of exit point；
Corresponding relationship function determination module 5 is used for according to the coordinates of all touch points and the coordinate of corresponding calibration point, utilization
Calibration algorithm determines the coordinate of touch point and the corresponding relationship function of the coordinate of corresponding calibration point；
The function that execution module 7 is used to execute the corresponding touch screen calibration point of user touch point according to corresponding relationship function is grasped
Make.
There are three can calculate error amount in the error change of horizontal axis and vertical direction after error information
Then trend judges the regional area influenced, be adjusted to each calibration region influenced.
In the present embodiment, corresponding relationship function determination module 6 includes the first submodule and second submodule；Wherein,
First submodule is used to determine the corresponding relationship function between touch point and calibration point；
Second submodule is used to determine the corresponding relationship function between touch point, mapping point and calibration point.
To sum up, in a kind of calibration method and calibration system based on touch screen provided in an embodiment of the present invention, touch screen
Pre-selection is arranged to the calibration region that several calibration regions are corresponding with several regions of display screen, and user's click needs to calibrate, with
Reduce touch screen bending or piece calibration bring error.Meanwhile based on the principle for touching error is repaired, pass through point touching
Point and mapping point corresponding with touch point, obtain calibration point, i.e., by mapping twice, obtain calibration point by touch point.If touching
The mapping relations for touching screen and display screen have error, and calibration point is not overlapped with touch point, to collect touch error, pass through acquisition
After touching error at least three, the calibration region of touch screen can be finely adjusted to eliminate touch error.It avoids as a result,
The phenomenon that click location can not accurately identify when user's pressure is smaller, to improve calibration accuracy.It calibrates for error in touch
During, if the mapping relations of touch screen and display screen are error free, calibration system does not acquire touch error, and user can basis
The feedback of calibration system learns whether each calibration region needs to calibrate.After calibration system completes primary calibration, calibration system is
Partial touch error can be eliminated, after repeatedly calibrating to same calibration region, calibration error is gradually eliminated.
The above is only a preferred embodiment of the present invention, does not play the role of any restrictions to the present invention.Belonging to any
Those skilled in the art, in the range of not departing from technical solution of the present invention, to the invention discloses technical solution and
Technology contents make the variation such as any type of equivalent replacement or modification, belong to the content without departing from technical solution of the present invention, still
Within belonging to the scope of protection of the present invention.
Claims (9)
1. a kind of calibration method based on touch screen, which comprises the following steps:
S1: the calibration region of user's selection is obtained；
S2: touching the calibration region, obtains the coordinate of the touch point in the calibration region；
S3: the coordinate of the corresponding calibration point in the touch point is obtained；
S4: returning to step S2, until obtaining the coordinate of at least three touch points in calibration region；
S5: according to the coordinate of the coordinate of touch point and calibration point, coordinate and the calibration of the touch point are determined using calibration algorithm
The corresponding relationship function of the coordinate of point；
S6: the feature operation of the corresponding calibration point in touch point is executed according to corresponding relationship function.
2. the calibration method according to claim 1 based on touch screen, which is characterized in that the calibration region includes composition
Multiple subregions of touch screen.
3. the calibration method according to claim 1 based on touch screen, which is characterized in that the calibration point is on display screen
Display point.
4. the calibration method according to claim 1 based on touch screen, which is characterized in that the step S3 specifically:
S31: the coordinate of the corresponding mapping point in any one touch point is obtained；The mapping point is the display point on display screen；
S32: mapping point is clicked, the coordinate of corresponding calibration point is obtained；The calibration point is the point on touch screen.
5. the calibration method according to claim 4 based on touch screen, which is characterized in that in step s 4, the touch
The number of point is 3.
6. the calibration method according to claim 1 based on touch screen, which is characterized in that in step S2 specifically:
S21: the received infrared signal of reception device group of infrared ray is obtained；The reception device group of infrared ray and the transmitting of infrared ray
The side of the touch screen is arranged in device group；
S22: the touch point of user is determined according to infrared signal.
7. a kind of calibration system based on touch screen characterized by comprising
Calibration region obtains module, obtains the calibration region of user's selection；
Infrared signal obtains module, for obtaining the received infrared signal of reception device group of infrared ray；The reception of infrared ray
The side of the touch screen is arranged in device group and the emitter group of infrared ray；
Touch point coordinate obtaining module, the coordinate of the touch point for determining user according to the infrared signal；
Calibration point coordinate obtaining module, for obtaining the coordinate of the corresponding calibration point in each touch point；
Corresponding relationship function determination module, for utilizing calibration according to the coordinates of all touch points and the coordinate of corresponding calibration point
Algorithm determines the coordinate of touch point and the corresponding relationship function of the coordinate of corresponding calibration point；
Execution module, for executing the function of the corresponding touch screen calibration point of user touch point according to the corresponding relationship function
It can operation.
8. the calibration system according to claim 7 based on touch screen, which is characterized in that the corresponding relationship function determines
Module includes the first submodule and second submodule；First submodule is used to determine the correspondence between touch point and calibration point
Relation function；The second submodule is used to determine the corresponding relationship function between touch point, mapping point and calibration point.
9. the calibration system according to claim 7 based on touch screen, which is characterized in that further comprise mapping point coordinate
Obtain module；For obtaining the coordinate of the corresponding mapping point in each touch point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454447.0A CN109634455B (en) | 2018-11-30 | 2018-11-30 | Calibration method and calibration system based on touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811454447.0A CN109634455B (en) | 2018-11-30 | 2018-11-30 | Calibration method and calibration system based on touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109634455A true CN109634455A (en) | 2019-04-16 |
| CN109634455B CN109634455B (en) | 2022-05-24 |
Family
ID=66070426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811454447.0A Active CN109634455B (en) | 2018-11-30 | 2018-11-30 | Calibration method and calibration system based on touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109634455B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346593A (en) * | 2020-10-15 | 2021-02-09 | 北京小米移动软件有限公司 | Touch screen calibration method and touch screen calibration device |
| CN115867879A (en) * | 2019-11-26 | 2023-03-28 | 京东方科技集团股份有限公司 | Touch compensation device, touch compensation method and touch screen |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070926A1 (en) * | 2000-12-11 | 2002-06-13 | Xerox Corporation | Touchscreen display calibration using results history |
| CN101349955A (en) * | 2008-09-03 | 2009-01-21 | 嘉兴闻泰通讯科技有限公司 | Method for mapping touch screen based on five points calibration |
| CN101634914A (en) * | 2008-07-22 | 2010-01-27 | 福州星网视易信息系统有限公司 | Three-point calibration method based on nonuniform touch screen |
| CN102591525A (en) * | 2012-01-13 | 2012-07-18 | 广州视源电子科技有限公司 | Calibration method for touch screen, touch screen system and calibration device |
| CN102880357A (en) * | 2012-09-19 | 2013-01-16 | 广州视睿电子科技有限公司 | Coordinate calibration method and device for touch equipment |
| CN103472953A (en) * | 2013-09-25 | 2013-12-25 | 成都吉锐触摸技术股份有限公司 | Calibration method of touch display screen |
| CN104391603A (en) * | 2014-12-08 | 2015-03-04 | 京东方科技集团股份有限公司 | Method, device and system for calibrating touch screen |
| CN108153451A (en) * | 2018-01-22 | 2018-06-12 | 河北华发教育科技股份有限公司 | A kind of calibration method and system based on touch screen |
-
2018
- 2018-11-30 CN CN201811454447.0A patent/CN109634455B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070926A1 (en) * | 2000-12-11 | 2002-06-13 | Xerox Corporation | Touchscreen display calibration using results history |
| CN101634914A (en) * | 2008-07-22 | 2010-01-27 | 福州星网视易信息系统有限公司 | Three-point calibration method based on nonuniform touch screen |
| CN101349955A (en) * | 2008-09-03 | 2009-01-21 | 嘉兴闻泰通讯科技有限公司 | Method for mapping touch screen based on five points calibration |
| CN102591525A (en) * | 2012-01-13 | 2012-07-18 | 广州视源电子科技有限公司 | Calibration method for touch screen, touch screen system and calibration device |
| CN102880357A (en) * | 2012-09-19 | 2013-01-16 | 广州视睿电子科技有限公司 | Coordinate calibration method and device for touch equipment |
| CN103472953A (en) * | 2013-09-25 | 2013-12-25 | 成都吉锐触摸技术股份有限公司 | Calibration method of touch display screen |
| CN104391603A (en) * | 2014-12-08 | 2015-03-04 | 京东方科技集团股份有限公司 | Method, device and system for calibrating touch screen |
| CN108153451A (en) * | 2018-01-22 | 2018-06-12 | 河北华发教育科技股份有限公司 | A kind of calibration method and system based on touch screen |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115867879A (en) * | 2019-11-26 | 2023-03-28 | 京东方科技集团股份有限公司 | Touch compensation device, touch compensation method and touch screen |
| CN112346593A (en) * | 2020-10-15 | 2021-02-09 | 北京小米移动软件有限公司 | Touch screen calibration method and touch screen calibration device |
| CN112346593B (en) * | 2020-10-15 | 2024-06-11 | 北京小米移动软件有限公司 | Touch screen calibration method and touch screen calibration device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109634455B (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101634914B (en) | Three-point calibration method based on nonuniform touch screen | |
| CN101727243B (en) | Method and device for acquiring calibration parameters of touch screen | |
| US8243047B2 (en) | Calibrating apparatus and method | |
| US7065461B2 (en) | Point cloud measuring system and method | |
| JP7289262B2 (en) | How to correct the deviation between the pen coordinates and the display position of the pointer | |
| CN100543661C (en) | Touch-controlled screen device and method thereof with auto-calibration prompt function | |
| CN103472953B (en) | Calibration method of touch display screen | |
| CN109634455A (en) | A kind of calibration method and calibration system based on touch screen | |
| CN102207800B (en) | Method and device for identifying touch points of infrared touch screen | |
| CN106737674B (en) | Instrument board non-linear scale visible detection method and picture write system and device | |
| CN101354621A (en) | Method and apparatus for determining touch screen calibration parameter | |
| WO2021098808A1 (en) | Method and system for determining laser tracker station, electronic device, and medium | |
| US10884526B2 (en) | Touch sensitive information transmission method, processor and system | |
| CN110977980A (en) | Mechanical arm real-time hand-eye calibration method and system based on optical position indicator | |
| CN115122333A (en) | Robot calibration method and device, electronic equipment and storage medium | |
| JP2554577B2 (en) | Coordinate conversion method for touch panel device | |
| CN106780435A (en) | A kind of object count method and device | |
| CN111551258B (en) | Multi-infrared-sensor temperature measurement correction method based on self-adaptive weighting | |
| CN101825970B (en) | Tracking method and tracking system of touch-control points | |
| CN109327354B (en) | Method, device and test system for generating signal forwarding test case | |
| CN111812613A (en) | Mobile robot positioning monitoring method, device, equipment and medium | |
| CN104166985A (en) | Star sensor demarcation method based on region division | |
| CN102866808B (en) | Method and system for self-correcting of specially-shaped touch screen | |
| CN116069197A (en) | Control method and system of electromagnetic induction type handwriting board | |
| CN105094439A (en) | Acceleration sensor calibration and dip angle calculation method and device of touch screen device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 3 / F and 4 / F, building 3, No. 769, qiliting Road, Huzhou City, Zhejiang Province Applicant after: Jiage Technology (Zhejiang) Co.,Ltd. Address before: 313001 3 / F and 4 / F, building 3, 769 qiliting Road, Huzhou City, Zhejiang Province Applicant before: ZAAG TECH Inc. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |