A method for judging mistaken touch of a hand sleeve in handwriting on the basis of a touch large-screen electronic whiteboard

Abstract

The invention discloses a method for judging hand sleeve mistaken touch in handwriting based on a touch large-screen electronic whiteboard. The method comprises the following specific steps that a judgment model is obtained by analyzing a large amount of real handwriting data and hand sleeve mistaken touch data; The invention discloses a method for judging mistaken touch of a hand sleeve in handwriting on the basis of a touch large-screen electronic whiteboard. under the writing state of the touch screen, multi-finger zooming-in, zooming-out and moving are supported; there is no need to switchmodes, during zooming, the movement directions of the two touch points are inconsistent; the dynamic view shows that the hand sleeve and the real touch writing and drawing point have the same direction and speed; During movement, the areas of the two touch points are equivalent. The touch screen is simple in structure and small in difference, the hand sleeve mistaken touch is recognized in the writing process of the touch screen, if the touch area of the current input touch point is larger than the hand sleeve area, the hand sleeve mistaken touch is directly judged, mistaken touch handwritingis avoided, normal handwriting is prevented from being disturbed, the current writing speed is not affected in the hand sleeve mistaken touch judgment process, and a better use prospect is brought.

Description

technical field [0001] The invention relates to the fields of image processing, handwriting recognition, electronic whiteboard, and educational electronic informatization, and in particular to a method for judging a hand-sleeve accidental touch based on handwriting on a large-screen electronic whiteboard. Background technique [0002] Most of the current large handwriting touch screens are 10-point touch. For example, in the teaching scene, teachers need to write a large number of blackboard writing on the electronic whiteboard, which is especially easy to trigger accidental hand sleeve touches, because most of the current large touch screens are based on infrared sensing. System, as long as any object enters the sensing area, it will be recognized as a new touch point to generate strokes. Such false touches will interfere with the user's normal writing; [0003] At present, most of the electronic whiteboards with large touch screens on the market do not handle false touches...

AI Technical Summary

Problems solved by technology

[0002] Most of the current large handwriting touch screens are 10-point touch. For example, in the teaching scene, teachers need to write a large number of blackboard writing on the electronic whiteboard, which is especially easy to trigger accidental hand sleeve touches, because most of the current large touch screens are based on infrared sensing. System, as long as any object enters the sensing area, it will be recognized as a new touch point to generate strokes. Such false touches will interfere with the user's normal writing;

[0003] At present, most of the electronic whiteboards with large touch screens on the market do not handle false touches on the sleeves. Many manufacturers support multi-point writing, which directly leads to writing and drawing handwriting by accidental touches on the sleeves. This kind of user experience is very bad, and some The manufacturer's electronic whiteboard only supports writing at a single point, and only zooms and moves in non-writing mode. It also sacrifices user experience and bypasses the problem of hand-sleeve accidental touch. For this reason, we propose a touch-based large screen Judgment method of hand-sleeve accidental touch in electronic whiteboard handwriting

Images