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Touch-point tracking, positioning and correcting method and system

A technology of tracking and positioning and correction methods, which is applied in the direction of instruments, electrical digital data processing, and input/output processes of data processing, etc., and can solve problems such as poor user experience, insufficient smoothness of drawing images, violations, etc.

Active Publication Date: 2014-06-18
GUANGZHOU SHIRUI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And once in the touch tracking and positioning process, there is a large error in the positioning of one of the touch points due to the above-mentioned various reasons, then a larger corner will appear in the drawing curve, and the drawing image is not smooth enough, which violates the operator's intention. Intended to bring a bad user experience

Method used

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  • Touch-point tracking, positioning and correcting method and system
  • Touch-point tracking, positioning and correcting method and system
  • Touch-point tracking, positioning and correcting method and system

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Embodiment Construction

[0023] see figure 1 , figure 1 It is a flow chart of the touch point tracking positioning correction method of the present invention.

[0024] The touch point tracking positioning correction method includes the following steps:

[0025] Step S101, acquiring the detection coordinates of five consecutive and orderly touch points;

[0026] In this step, various forms of touch screens or touch control devices may be used to detect the touch point generated by the user's touch operation. Acquire the detection coordinates of five consecutive and orderly touch points, which can be obtained sequentially according to the order of detection time, or select five of the multiple detected touch points, according to the detection coordinates of these five touch points Carry out the coordinate correction operation of the following steps.

[0027] Such as figure 2 As shown, the detection coordinates of five consecutive and ordered touch points 1 to 5 are acquired.

[0028] Wherein, the...

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Abstract

The invention provides a touch-point tracking, positioning and correcting method and system. The method comprises the steps of: obtaining detection coordinates of five continuous and orderly touch points; obtaining a middle point between the first touch point and the second touch point as a first reference point; calculating a first correction point according to the first reference point and the third touch point; obtaining a middle point between the second touch point and the third touch point as a second reference point; calculating a second correction point according to the second reference point and the fifth touch point; calculating obtained coordinates according to the detection coordinate of the fourth touch point as well as the first correction point and the second correction point, and calculating a correction coordinate of the fourth touch point according to respective predetermined weights of the obtained coordinates; and repositioning the coordinate of the fourth touch point to the correction coordinate. The touch-point tracking, positioning and correcting method and system provided by the invention can be used for correcting obvious errors generated during detecting and positioning of the touch points, and carrying out smoothing treatment on a curve formed by connecting the five points.

Description

technical field [0001] The present invention relates to the technical field of touch point tracking and positioning, in particular to a touch point tracking and positioning correction method and a touch point tracking and positioning correction system. Background technique [0002] The touch tracking and positioning technology tracks the position changes of the touch points on the touch screen, and judges the operation that the user wants to perform through the movement trajectory of the touch points. Therefore, it is very important to accurately capture the movement track of the touch point. [0003] In the existing touch tracking and positioning technology, the position coordinates of the touch point are detected with a fixed detection period, and the orderly coordinate points detected when the touch point moves on the screen are connected to obtain a curve. If the five coordinate points have a large error between the coordinates of the detected and positioned touch point...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 黄安麒胡隽鹏
Owner GUANGZHOU SHIRUI ELECTRONICS
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