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Kinect-based handwriting method

A handwriting trajectory and hand technology, applied in the input/output of user/computer interaction, computer components, graphic reading, etc., can solve the problems of not fully meeting humanized interaction requirements, expensive electronic equipment, inconvenient use, etc. , to achieve the effect of resisting complex background and interference from others, high degree of freedom, and strong practicability

Active Publication Date: 2013-07-31
SOUTH CHINA UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0002] Throughout the development history of human-computer interaction, we have been working hard to create a more natural and user-friendly interactive system, but in the existing handwriting system, limited by hardware and software constraints, it is still not fully To achieve a humanized interaction requirement: On the one hand, traditional handwriting input systems need to rely on certain media devices, such as keyboards, mice, electronic pens, and touch screens. This kind of handwriting behavior is "bound" with hardware. On the other hand, there are many attempts and researches in the field of virtual handwriting at home and abroad, but they all have certain limitations at some level, for example, for The application scenarios must be strictly controlled, requiring the background to be clean and stable; or require expensive electronic equipment, such as high-precision TOF cameras, data gloves, etc., which restrict their application solutions to become a practical system; it can be seen There are many restrictions on the use of existing handwriting technology, which is inconvenient to use and poor in practicability

Method used

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Embodiment

[0046] Such as figure 1As shown, it is an overall block diagram of the present invention. After the user's handwriting video is obtained by Kinect, the hand segmentation is performed to separate the area of ​​interest of the hand from the background. After this, the system is divided into two modules: handwriting trajectory positioning and character recognition module And the gesture recognition and response module. In the handwriting trajectory positioning and character recognition module, the fingertips of the segmented hand are positioned and regarded as a series of discrete nodes of the character. After completing the handwriting of a character, these nodes are spliced ​​​​together The recovered character strokes are constructed, which are input to a character recognition engine to output candidate characters; in the gesture recognition and response module, morphological features are extracted from the segmented hands, and these features are used as the basis for gesture de...

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Abstract

The invention discloses a kinect-based handwriting method, which mainly comprises the following steps: step 1, capturing video information; step 2, analyzing, processing and segmenting the video information, so as to acquire the hand part of the user in each frame of image; and step 3, separating the segmented video information into two modules, namely a handwriting track positioning and character recognition module and a gesture recognition and response module. The kinect-based handwriting method has the advantages of high writing freedom degree, convenience in use, high practicability and the like.

Description

technical field [0001] The invention relates to a computer image processing and pattern recognition technology, in particular to a Kinect-based handwriting method, which is a recognition and interaction method for virtual handwriting in the air. Background technique [0002] Throughout the development history of human-computer interaction, we have been working hard to create a more natural and user-friendly interactive system, but in the existing handwriting system, limited by hardware and software constraints, it is still not fully To achieve a humanized interaction requirement: On the one hand, traditional handwriting input systems need to rely on certain media devices, such as keyboards, mice, electronic pens, and touch screens. This kind of handwriting behavior is "bound" with hardware. On the other hand, there are many attempts and researches in the field of virtual handwriting at home and abroad, but they all have certain limitations at some level, for example, for Th...

Claims

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Application Information

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IPC IPC(8): G06F3/01
Inventor 金连文叶植超张鑫
Owner SOUTH CHINA UNIV OF TECH
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