CN106469457B - A method of repairing touch-control system contact mistake track - Google Patents
A method of repairing touch-control system contact mistake track Download PDFInfo
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- CN106469457B CN106469457B CN201610842069.8A CN201610842069A CN106469457B CN 106469457 B CN106469457 B CN 106469457B CN 201610842069 A CN201610842069 A CN 201610842069A CN 106469457 B CN106469457 B CN 106469457B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30241—Trajectory
Abstract
The invention discloses a kind of methods for repairing touch-control system contact mistake track, key step are as follows: contact in video camera photographed screen coordinate and coordinate in the current frame in previous frame image, it is transferred to host, host detects the image transmitted, tracking, judge whether tracking result is correct according to whether track following line intersects, then calculated result is transferred to screen, show correct result, the present invention solves the prior art and can not fundamentally avoid by apart from caused tracking Problem-Error, by the geometrical relationship for analyzing two kinds of motion profiles, then certain computerized algorithm is designed with correlation geometrical principle, it solves the problems, such as insoluble with other methods.
Description
Technical field
The present invention relates to motion tracking technology field, especially a kind of method for repairing touch-control system contact mistake track.
Background technique
With the development of computer technology and digital image processing techniques, the application field of computer vision technique is rapid
It widens, target following has become one very active project of computer vision field.Moving target automatically tracks control system
The realization purpose of system is to acquire the sequence of video images of target with camera, and analyzes the fortune of target in real time by computer
It is dynamic, the kinematic parameter of target is obtained, is directed toward target always according to control camera in this, as main.
Tracking technique depends on the judgement adjusted the distance to determine the trace point for belonging to some specific motion profile at present, but real
Work as hypotelorism during border or because the problem of shooting frame rate, starting with from Distance Judgment solves tracking problem and can inevitably encounter
The bottleneck of accuracy rate, be embodied in when belong to point of the point of another motion profile apart from this motion profile previous frame it is closer when
It waits, will occur to track mistake.
Summary of the invention
To solve the above-mentioned problems, the invention proposes a kind of methods for repairing touch-control system contact mistake track.
Concrete scheme of the invention is as follows:
A method of touch-control system contact mistake track being repaired, the touch-control system includes screen 1, video camera 2 and master
Machine 3, video camera 2 are connect with host 3 by data line, and host 3 is connect with screen 1 by video line, and steps are as follows:
S1: video camera 2 captures the image of two contacts of previous frame and present frame of two contacts on the screen 1, is transferred to
The host 3, wherein the coordinate of two contacts described in previous frame image is respectively A (x1, y1), B (x2, y2), current
The coordinate of two contacts described in frame is respectively C (x3, y3), D (x4, y4)；
S2: the host 3 receives the image that the video camera 2 transmits, and is detected, is tracked to image, the previous frame
The contact coordinate of contact A (x1, y1) in the current frame is C (x3, y3), contact B (x2, y2) in the previous frame image in image
Contact coordinate in the current frame is D (x4, y4)；
S3: the host 3 judges whether the result of tracking is correct according to above-mentioned tracking result, and the method for judgement is to connectWithIfWithDo not intersect, then tracking result does not have mistake, and the coordinate of coordinate A (x1, y1) in the current frame is C
(x3, y3), the coordinate of coordinate B (x2, y2) in the current frame are D (x4, y4)；IfWithIntersect, then tracking result mistake,
The coordinate reparation of coordinate A (x1, y1) in the current frame is D (x4, y4), and the coordinate reparation of coordinate B (x2, y2) in the current frame is
C (x3, y3), while calculated result is transferred to the screen (1)；
S4: the screen 1 receives the tracking result that the host 3 transmits and display.
Preferably, judge in the step S3WithThe formula of intersection is
Preferably, judge in the step S3WithThe formula of intersection is
Preferably, judge in the step S3WithThe formula of intersection is
Preferably, judge in the step S3WithThe formula of intersection is
Compared with the prior art, the present invention has the following beneficial effects:
A kind of method for repairing touch-control system contact mistake track proposed by the present invention, by analyzing arithmetic result
And internal realization intelligent Matching, solving the prior art can not fundamentally avoid by leading to apart from caused tracking Problem-Error
The geometrical relationship of two kinds of motion profiles of analysis is crossed, then certain computerized algorithm is designed with correlation geometrical principle, solves use
Other insoluble problems of method.
Detailed description of the invention
Fig. 1 is a kind of specific steps flow chart of the method for reparation touch-control system contact mistake track of the invention；
Fig. 2 is the schematic diagram of touch-control system of the invention；
Fig. 3 is a kind of schematic diagram of the first embodiment of the method for repairing touch-control system contact mistake track of the present invention；
Fig. 4 is a kind of schematic diagram of second of embodiment of the method for repairing touch-control system contact mistake track of the present invention；
Fig. 5 is a kind of schematic diagram of the third embodiment of the method for repairing touch-control system contact mistake track of the present invention；
Fig. 6 is a kind of schematic diagram of 4th kind of embodiment of the method for repairing touch-control system contact mistake track of the present invention；
Fig. 7 is a kind of schematic diagram of 5th kind of embodiment of the method for repairing touch-control system contact mistake track of the present invention；
Fig. 8 is a kind of schematic diagram of 6th kind of embodiment of the method for repairing touch-control system contact mistake track of the present invention.
Specific embodiment
Below in conjunction with the specific embodiment technical solution that present invention be described in more detail.It should be appreciated that being described herein as
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
Fig. 1 is a kind of specific steps flow chart of the method for reparation touch-control system contact mistake track of the invention；Fig. 2 is
The schematic diagram of touch-control system of the invention.As depicted in figs. 1 and 2, video camera 2 is connect with host 3 by data line, host 3 with
Screen 1 is connected by video line.Video camera 2 captures the image on screen 1, is transferred to host 3, host 3 transmits video camera 2
Image is calculated, and calculated result is transferred to screen 1 and is shown.
Two contacts in 2 photographed screen 1 of video camera coordinate A (x1, y1) in previous frame image, B (x2, y2) and working as
Coordinate C (x3, y3) in previous frame, D (x4, y4), are transferred to host 3, and host 3 receives the image that video camera 2 transmits, to image into
Row detection tracks, and the contact coordinate of contact A (x1, y1) in the current frame is C (x3, y3), previous frame image in previous frame image
The contact coordinate of middle contact B (x2, y2) in the current frame is D (x4, y4).Host (3) judges to track according to above-mentioned tracking result
Result it is whether correct, method particularly includes: as shown in figure 3, two rectangles are done by diagonal line of AC and BD, if two rectangles do not have
Intersection, explanationWithDo not intersect, track following result does not have mistake, and the coordinate of coordinate A (x1, y1) in the current frame is C
(x3, y3), the coordinate of coordinate B (x2, y2) in the current frame are D (x4, y4)；As shown in figure 4, if two rectangles have part phase
It hands over, butWithDo not intersect, illustrates that track following result does not have mistake, the coordinate of coordinate A (x1, y1) in the current frame is C
(x3, y3), the coordinate of coordinate B (x2, y2) in the current frame are D (x4, y4)；As shown in figure 5, two rectangles have part intersection,
AndWithIntersection, that is, meet formulaOrIllustrate track following result mistake, the coordinate of coordinate A (x1, y1) in the current frame
Repairing is D (x4, y4), and the coordinate reparation of coordinate B (x2, y2) in the current frame is C (x3, y3)；If vectorIt is full
Foot positional relationship shown in fig. 6, that is, meet formulaIllustrate track following result
Mistake, the coordinate reparation of coordinate A (x1, y1) in the current frame are D (x4, y4), the coordinate of coordinate B (x2, y2) in the current frame
Repair is C (x3, y3)；If A, C, B three point on a straight line, meets positional relationship shown in Fig. 7, that is, meet formulaIt says
Bright track following result mistake, the coordinate reparation of coordinate A (x1, y1) in the current frame are D (x4, y4), and coordinate B (x2, y2) exists
Coordinate reparation in present frame is C (x3, y3), and similarly, any three point on a straight line all illustrates track following result mistake；Such as Fig. 8 institute
Show, if A, C, D three point on a straight line, using AC and CD as bevel edge, is two right angled triangle Rt △ ACE and Rt △ CDF respectively, the two
Right angled triangle meets formulaTherefore, ifIt sets up, illustrates track following result
Mistake, the coordinate reparation of coordinate A (x1, y1) in the current frame are D (x4, y4), the coordinate of coordinate B (x2, y2) in the current frame
Repairing is C (x3, y3), while calculated result is transferred to screen 1 by host 3, shows correct tracking result.
The above are the embodiments of two contacts, and the present invention is not limited to two contacts, can shoot simultaneously more than or equal to two
The motion profile of contact.
If contact number is greater than two, principle with it is above-mentioned similar, and selection matches two-by-two, and then judges track following
As a result there is inerrancy.
In conclusion a kind of method for repairing touch-control system contact mistake track proposed by the present invention, by algorithm knot
Fruit analyze and internal realization intelligent Matching, and solving the prior art can not fundamentally avoid by wrong apart from caused tracking
Then accidentally problem designs certain computerized algorithm with correlation geometrical principle by analyzing the geometrical relationship of two kinds of motion profiles,
It solves the problems, such as insoluble with other methods.
Above embodiment is the preferred embodiment of the present invention, is not intended to limit patent protection model of the invention
It encloses.Those skilled in the art belonging to any present invention, in the premise for not departing from spirit and scope disclosed in this invention
Under, the transformation of the equivalent structure and equivalent steps that done to the contents of the present invention each falls within claimed the scope of the patents
Within.
Claims (5)
1. it is a kind of repair touch-control system contact mistake track method, the touch-control system include screen (1), video camera (2) and
Host (3), video camera (2) are connect with host (3) by data line, and host (3) is connect with screen (1) by video line, special
Sign is that steps are as follows:
S1: video camera (2) captures the image of previous frame and present frame two contact of two contacts on screen (1), is transferred to
The host (3), wherein the coordinate of two contacts described in previous frame image is respectively A (x1, y1), and B (x2, y2) is working as
The coordinate of two contacts described in previous frame is respectively C (x3, y3), D (x4, y4)；
S2: the host (3) receives the image that the video camera (2) is transmitted, and is detected, is tracked to image, the previous frame
The contact coordinate of contact A (x1, y1) in the current frame is C (x3, y3), contact B (x2, y2) in the previous frame image in image
Contact coordinate in the current frame is D (x4, y4)；
S3: the host (3) judges whether the result of tracking is correct according to above-mentioned tracking result, and the method for judgement is to connect
WithIfWithDo not intersect, then tracking result does not have a mistake, the coordinate of coordinate A (x1, y1) in the current frame be C (x3,
Y3), the coordinate of coordinate B (x2, y2) in the current frame is D (x4, y4)；IfWithIntersect, then tracking result mistake, coordinate A
The coordinate reparation of (x1, y1) in the current frame be D (x4, y4), the coordinate reparation of coordinate B (x2, y2) in the current frame be C (x3,
Y3), while by calculated result it is transferred to the screen (1)；
S4: the screen (1) receives the tracking result that the host (3) is transmitted and display.
2. a kind of method for repairing touch-control system contact mistake track according to claim 1, which is characterized in that the step
Judge in rapid S3WithThe formula of intersection is
3. a kind of method for repairing touch-control system contact mistake track according to claim 1, which is characterized in that the step
Judge in rapid S3WithThe formula of intersection is
4. a kind of method for repairing touch-control system contact mistake track according to claim 1, which is characterized in that the step
Judge in rapid S3WithThe formula of intersection is
5. a kind of method for repairing touch-control system contact mistake track according to claim 1, which is characterized in that the step
Judge in rapid S3WithThe formula of intersection is
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| CN103164022A (en) * | 2011-12-16 | 2013-06-19 | 国际商业机器公司 | Multi-finger touch method, device and portable type terminal device |
| CN103593131A (en) * | 2012-08-15 | 2014-02-19 | 北京汇冠新技术股份有限公司 | Touch track tracking method |
| CN105378611A (en) * | 2013-07-12 | 2016-03-02 | 触觉实验室股份有限公司 | Fast multi-touch post processing |
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Patent Citations (6)
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| CN101384317A (en) * | 2006-02-15 | 2009-03-11 | 科乐美数码娱乐株式会社 | Trace information processing device, trace information processing method, information recording method, and program |
| CN102073405A (en) * | 2010-11-30 | 2011-05-25 | 广东威创视讯科技股份有限公司 | Image zooming and rotating judgment method |
| CN103164022A (en) * | 2011-12-16 | 2013-06-19 | 国际商业机器公司 | Multi-finger touch method, device and portable type terminal device |
| CN102542265A (en) * | 2011-12-26 | 2012-07-04 | 广东威创视讯科技股份有限公司 | Multi-touch eraser identification method based on camera positioning and device therefor |
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