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Method and system for tracking handling of trajectory of touch screen

A trajectory tracking, touch screen technology, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., can solve problems affecting the use of touch screen and other issues

Active Publication Date: 2014-08-06
北京科加触控技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What the present invention aims to solve is the technical problem of affecting the use experience of the touch screen caused by jumping points in the touch track tracking process in the prior art, and provides a method and system for touch screen track tracking processing that can effectively remove the jumping points

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  • Method and system for tracking handling of trajectory of touch screen

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Embodiment Construction

[0064] As a method for tracking a track of a touch screen according to an embodiment of the present invention, the specific implementation includes the following steps:

[0065] Step a. Obtain the coordinates of the touch points in two adjacent frames of data, and for each touch point in the previous frame of data, select the best matching touch point among the touch points in the next frame of data for matching until all touch points are completed. All touch points in the frame data are matched, and the matched touch points are classified as touch points on the same track.

[0066] In this specification, the scan data acquired in one scan period is referred to as a frame of data, and processing the data acquired in the current scan period is to process the current frame data.

[0067] In this embodiment, the following method is used to select the best matching touch point among the touch points in the subsequent frame data for matching: ① select a touch point from the unselec...

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Abstract

The invention relates to a method and a system for tracking handling of the trajectory of a touch screen. The method comprises the steps as follows: a, obtaining coordinates of touch points in two adjacent frames of data, and selecting touch points in optimum matching in the next frame for matching aiming at touch points in the previous frame of data until the matching of all touch points is completed; b, sequentially storing coordinates of the touch points at different trajectories into different storage units of a buffer according to time sequence; c, judging the number J of the touch points collected in M adjacent frames of data stored in each storage unit, and judging that the touch points at the same trajectory stored in the storage unit are not jump points and outputting the coordinates of the touch points according to the time sequence when the number J of the touch points is greater than a preset threshold value K, otherwise judging that the touch points at the same trajectory stored in the storage unit are jump points, and not outputting the coordinates of the touch points at the trajectory. Jump points can be removed quickly, and the use feeling about multi-point touch can be ensured.

Description

technical field [0001] The invention relates to a method for tracking and processing a track of a touch screen, in particular to a method and a system for tracking and processing a track of a touch screen capable of effectively removing jump points, and belongs to the technical field of touch screen control. Background technique [0002] With the development of science and technology and the demand of the market, touch technology has been widely used in many control technology fields, especially in today's human-computer interaction, the previous single-point touch has developed into multi-point touch. Among them, the development of single-touch technology is relatively mature, but its function is single, and it can only express limited centralized interactive operations. The corresponding multi-touch technology is a technology that allows users to control through multiple touch points at the same time. For example, two typical Fingers touch and stretch pictures to enlarge t...

Claims

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Application Information

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IPC IPC(8): G06F3/041
Inventor 满庆奎刘新斌管健
Owner 北京科加触控技术有限公司
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