Identification method for handwritten character strings in air

A technology of handwritten characters and character strings, which is applied in the direction of instruments, user/computer interaction input/output, computer components, etc. The method is novel and convenient, the recognition is accurate and fast, and the effect of calculation complexity is low

Active Publication Date: 2014-02-12
北京中科阅深科技有限公司
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AI Technical Summary

Problems solved by technology

However, because it is difficult to judge the pen up/down in writing in such systems, word segmentation is very difficult
Therefore, at present, this type of system can only recognize a single character. For details

Method used

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  • Identification method for handwritten character strings in air
  • Identification method for handwritten character strings in air
  • Identification method for handwritten character strings in air

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[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0030] figure 1 It is a structural schematic diagram of the air handwritten character string recognition system of the present invention, such as figure 1 As shown, the system includes a gesture recognition module, a finger trajectory extraction module, a preprocessing module, and a character string recognition module, wherein:

[0031] The gesture recognition module is connected with the finger trajectory extraction module, and is used for identifying gestures that mark the start of writing and the end of writing;

[0032] In an embodiment of the present invention, gesture trigger events are defined for the two states of "start writing" and "end writing": facing the camera, the action of "opening the palm" means starting to write, and the...

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Abstract

The invention discloses an identification system and method for handwritten character strings in air. The system comprises a gesture identification module, a finger track extraction module, a pretreatment module and a character string identification module, wherein the gesture identification module is connected with the finger track extraction module and used for recognizing and identifying gestures for starting and ending writing; the finger track extraction module is connected with the pretreatment module and used for performing finger track extraction and record on input handwriting actions; the pretreatment module is connected with the in-air handwritten character string identification module and used for pre-treating finger track data; and the character string identification module is connected with the pretreatment module and used for performing character string identification on the finger track data. The invention further discloses the identification method for the handwritten character strings in air. According to the identification system and method, the supported writing mode is novel and convenient, the identification is accurate and fast, a more humanized and intelligent handwriting input mode other than the traditional handwritten mode is provided for people, and the system and the method can be widely applied to human-computer interaction systems such as game operation, television control, a teaching system and the like.

Description

technical field [0001] The invention belongs to the technical field of computer application and pattern recognition, in particular to a method for recognizing handwritten character strings in the air. Background technique [0002] Text, as a commonly used information dissemination and communication tool, plays an important role in human-computer interaction systems. Currently widely used text input methods include: keyboard, touch screen, tablet, etc. These input methods have their own advantages, but also have their own shortcomings, such as the limitation of the size of the keyboard and the number of keys, the limitation of the size of the touch screen and tablet, and the limited writing area. Therefore, designing a more natural, convenient and efficient text input method is an important research direction. In recent years, people have designed a type of text input method based on visual gestures by combining handwritten text recognition and computer vision systems. Rec...

Claims

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Application Information

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IPC IPC(8): G06K11/06G06F3/01
Inventor 刘成林靳潇杰王秋锋侯新文
Owner 北京中科阅深科技有限公司
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