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Input method for recognizing multi-point touch gestures

A multi-touch and gesture recognition technology, applied in symbol input method and Chinese character field, can solve the problems of information input, Braille cannot use touch screen, etc., and achieve the effects of improving input efficiency, simplifying input burden, and concise gestures

Inactive Publication Date: 2014-04-16
HOHAI UNIV
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Problems solved by technology

[0026] Purpose of the invention: In order to solve the problem that Braille cannot use touch screens (smart phones, etc.)

Method used

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  • Input method for recognizing multi-point touch gestures
  • Input method for recognizing multi-point touch gestures
  • Input method for recognizing multi-point touch gestures

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Embodiment Construction

[0050]Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0051] The information entry method based on multi-touch gesture recognition of the present invention includes three major modules:

[0052] Module 1: Multi-touch gesture library generation module. Establish the basic graphic features according to the position characteristics of the four points above the braille, and build a multi-touch gesture library by changing the sliding direction of the basic graphic features, two-finger touch, and two-finger touch to change the direction, and generate a mult...

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Abstract

The invention discloses an input method for recognizing multi-point touch gestures. The gesture induction is carried out on a touch screen, and after a gesture image composed of a finger starting point, a finger moving direction and an inflection point is recognized, a braille gesture comparison table is searched for extracting the braille characters. The method comprises the steps that firstly, 15 basic gestures are constructed based on four point locations above the braille; secondly, 64 gestures including 4 independent gestures and corresponding to 64 braille characters are constructed through three modes of changing the sliding direction, the double-finger touch and changing the double-finger touch direction according to the point location logical arrangement rule of the braille ; lastly, the braille recognized through the multi-point touch gestures is used for Chinese character, science symbol, English, music notation and other information inputting according to the braille expression rule. The image of the gestures is formed through multi-point touching, the braille point locations are extracted after recognition, and then the information inputting is finished. An ordinary person can input Chinese characters inputting through the method, the efficiency is high, one Chinese character can be input through at most 2 multi-point touch simple gestures, and the efficiency is far higher than the efficiency of the handwriting inputting method of an existing touch screen.

Description

technical field [0001] The invention relates to a Chinese character and symbol input method. Recognize the starting point, moving direction, and turning point of the gesture through multi-touch technology, recognize the graphics, and then find the corresponding Braille in the gesture library. One gesture completes one side of Braille input, and multiple gestures can input Chinese characters, words, sentences or mathematical formulas. , physical formulas, chemical formulas, music symbols and other symbolic information. Background technique [0002] Our country pays more and more attention to the education of the disabled, which is the embodiment of social civilization and progress. With the development of science and technology, more and more technological products have entered our lives. In recent years, smart phones and tablet computers have become more and more popular, and the touch screen technology has become more and more mature. However, there are many inconveniences...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/0488
Inventor 张居晓曾晓勤孟朝晖
Owner HOHAI UNIV
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