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Blind write information input system and method

An information input and character information technology, applied in the field of information input, can solve the problems that people cannot record various information quickly and conveniently anytime and anywhere, cannot release eyes, and has poor recognition effect, so as to achieve a rich writing experience and a more user-friendly use. Effect

Inactive Publication Date: 2013-02-13
PKU HKUST SHENZHEN HONGKONG INSTITUTION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When using traditional input devices such as keyboards for input, users need to stare at the screen for input at any time, and cannot free their eyes from the screen
Even if a touch screen is used for input, since the handwriting input method of existing handheld devices is based on the recognition principle, that is, writing on the screen through a built-in stylus or direct fingers, the screen senses the position of the contact point through changes in pressure or magnetic force, and then passes The handwriting recognition system inside the device converts various handwritten fonts into recognizable standard fonts, and then displays them on the screen. For the specific characters in the font library, when the user's handwriting is rough, the recognition effect is poor. Therefore, the user cannot write text at will, and needs to stare at the screen to input text at any time, and this input method cannot save the original input information.
Therefore, these existing input methods cannot meet the needs of people to record various information quickly and conveniently anytime and anywhere.

Method used

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  • Blind write information input system and method

Examples

Experimental program
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Embodiment 1

[0028] This embodiment provides a blind writing information input system, such as figure 1 As shown, it includes a writing sensing device 10 , a processor 20 and a storage module 30 .

[0029] The writing sensing device 10 is used to sense the movement track generated by the user's writing, and the track reaction actually includes all kinds of information such as all numbers, symbols, characters, and graphics. The writing-sensing device can be a touch screen or a tablet on which a user can write with a stylus or fingers. The writing sensing device obtains the element track and the interval time of the element track by sensing writing. The element trajectory refers to the writing trajectory sensed by the writing sensing device from the beginning to the end of the sensing writing, that is, each independent trajectory generated by the stylus or finger from touching the touch screen or tablet to leaving the touch screen or tablet. The element track interval time refers to the ti...

Embodiment 2

[0046] Such as Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that there are more identification modules 40 . The recognition module 40 is used to convert character information units into text information. Those skilled in the art can use commonly used pattern recognition algorithms to recognize characters, for example, they can use the training set of SVM features for matching and recognition, or use neural network methods, which are not limited in this application.

[0047] It should be understood that between the processor 20 and the recognition module 40, or between the storage module 30 and the recognition module 40, the actions of sending and receiving are implied, that is, the character information units in the processor 20 and / or the storage module 40 are sent Analyze and process in the identification module 40 to obtain the corresponding visual information or control information such as text and graphics, and the identification module ...

Embodiment 3

[0075] Such as Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that there is an additional analysis processing module 50 for analyzing vector graphics, and according to the analysis results, the vector graphics are merged, split, superimposed, etc., so as to eliminate the pauses in the writing process. Errors in division of character information units caused by the weight of writing, writing weight, etc., make it more in line with the original intention of the writer. The specific analysis and processing algorithm can be realized by commonly used related algorithms, which is not limited by this application. For example, a spiral line is used to indicate that the content input later is in Chinese, and the processor can analyze the vector information of a series of element graphics more accurately; the storage module can store the original vector graphics at this time, and can also store the analyzed and processed vector graphics.

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PUM

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Abstract

The invention discloses a blind write information input system and a blind write information input method. The system comprises writing induction equipment, a processor and a storage module, wherein the writing induction equipment is used for inducing writing trajectories of a user to obtain element trajectories and element trajectory intervals, wherein the element trajectories are writing trajectories induced by the writing induction equipment from the beginning to the end, and the element trajectory intervals are intervals between the end of the previous element trajectories and the beginning of the next element trajectories; the processor is used for converting the element trajectories into vector graphs and combining the vector graphs into character information units according to the element trajectory intervals; and the storage module is used for storing the vector graphs and / or the character information units. Information input trajectories are induced by a sensor, blind screen information input is realized on occasions where eyes are inconvenient to use, other information input modes are replaced in a certain range, handheld equipment or a computer is used in a humanized mode, and the innovation of a new human-computer interaction mode is driven.

Description

technical field [0001] The invention relates to the technical field of information input, in particular to a blind writing information input system and method. Background technique [0002] When using a traditional input device such as a keyboard for input, the user needs to stare at the screen for input at any time, and cannot free his eyes from the screen. Even if a touch screen is used for input, since the handwriting input method of existing handheld devices is based on the recognition principle, that is, writing on the screen through a built-in stylus or direct fingers, the screen senses the position of the contact point through changes in pressure or magnetic force, and then passes The handwriting recognition system inside the device converts various handwritten fonts into recognizable standard fonts, and then displays them on the screen. For the specific characters in the font library, when the user's handwriting is rough, the recognition effect is poor. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0488G06T11/80
Inventor 程如中王新安申凌赵勇魏益群戴勇
Owner PKU HKUST SHENZHEN HONGKONG INSTITUTION