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Gesture recognition method and palm virtual keyboard using the method and input method thereof

A gesture recognition and gesture technology, applied in the input/output of user/computer interaction, mechanical mode conversion, computer components, etc., can solve problems such as inconvenient installation, achieve easy installation and use, improve processing speed and recognition accuracy , the widely used effect

Active Publication Date: 2019-03-26
BEIJING CHUANGSI BODE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention lies in the problem that the virtual keyboard in the prior art needs to use a camera to collect images and is inconvenient to install, thereby proposing a gesture recognition method that does not need to use a camera and is simple and convenient to install, and a method based on the method. Palm virtual keyboard and input method thereof

Method used

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  • Gesture recognition method and palm virtual keyboard using the method and input method thereof
  • Gesture recognition method and palm virtual keyboard using the method and input method thereof
  • Gesture recognition method and palm virtual keyboard using the method and input method thereof

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Embodiment 1

[0062] This embodiment provides a gesture recognition system and a corresponding gesture recognition method.

[0063] The gesture recognition system in this embodiment includes a signal acquisition unit 101 , a signal preprocessing unit 102 , a signal segmentation unit 103 , a feature extraction unit 104 , a feature fusion unit 105 , a gesture recognition unit 107 , and a character mapping unit 108 . In this solution, the bioelectric sensor 1 installed on the wrist and the position sensor 2 installed on the thumb respectively obtain gesture signals, and then through signal processing, feature extraction, and gesture recognition, the gestures of the user are recognized.

[0064] figure 1 The sensor used by the gesture recognition method is given, and the gesture recognition process is as follows figure 2 shown. Among them, the information collection unit 101, the signal preprocessing unit 102, the signal segmentation unit 103, and the feature extraction module 104 all includ...

Embodiment 2

[0092] A specific embodiment of the palm virtual keyboard of the present invention is given below, the palm virtual keyboard includes a signal acquisition unit 101, a signal preprocessing unit 102, a signal segmentation unit 103, a feature extraction unit 104, a feature fusion unit 105, A modeling unit 106 , a gesture recognition unit 107 , and a character mapping unit 108 . In this solution, the bioelectric sensor 1 installed on the wrist and the position sensor 2 installed on the thumb respectively obtain gesture signals, and then through signal processing, feature extraction, and gesture recognition, the user's gesture is recognized, and the gesture corresponding to the gesture is obtained. characters, thereby realizing the input of the palm virtual keyboard.

[0093] figure 1 The components of the palm virtual keyboard, the system composition and processing flow of the palm virtual keyboard are given, such as figure 2 shown. Among them, the information collection unit ...

Embodiment 3

[0115] This embodiment provides an input method of the palm virtual keyboard in the above embodiment, the flow chart is as follows Figure 4 shown, including the following steps:

[0116] S1. The bioelectric sensor 1 installed on the wrist collects bioelectric information when the user gestures, and the position sensor 2 installed on the thumb collects the motion track and acceleration of the thumb.

[0117] The bioelectric sensor 1 is placed on the surface of the muscle group of the user's wrist, including multiple sensor probes, such as electromyographic signal detection probes, skin surface impedance detection probes, etc., to obtain bioelectric information of the user's gesture movement, such as obtaining the bioelectric information under the skin. EMG signals and impedance change signals on the skin surface, etc. The position sensor 2 is placed on the surface of the user's thumb to obtain the trajectory of the user's thumb in three-dimensional space, as well as the linea...

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Abstract

The invention provides a gesture recognition method, a palm virtual keyboard using same, and an input method; the palm virtual keyboard comprises a signal acquisition unit, a signal pretreatment unit, a signal segmentation unit, a feature extraction unit, a feature fusion unit, a gesture recognition unit, and a character mapping unit; a bioelectrical sensor arranged on a wrist and a position sensor arranged on a thumb can respectively obtain a gesture signal; the gesture signal is processed, features are extracted, and gesture recognition is carried out so as to recognize a user gesture motion, thus obtaining the characters corresponding to the gesture motion, and realizing input of the palm virtual keyboard; the two sensors arranged on the wrist and thumb can recognize the gesture so as to use the palm as the virtual keyboard for inputting, thus solving the technical problems that a virtual keyboard in the prior art needs a camera to collect images, and the camera is not easy to install, easy to be blocked, and inaccurate in recognition.

Description

technical field [0001] The invention relates to a virtual input device, in particular to a palm virtual keyboard based on wrist bioelectricity and finger positions and an input method thereof. Background technique [0002] With the development of electronic technology, computers have become an indispensable part of modern work and life. As an important input device for human-computer interaction, the keyboard is irreplaceable. As people's use of electronic devices becomes increasingly common, it is required that these devices have better mobility and portability. At present, there are mainly two types of keyboards: physical hard keyboard and touch screen soft keyboard. Due to the limitation of size, these two kinds of keyboards are always contradictory in terms of portability and ease of operation. operational conflicts. [0003] What the existing virtual keyboard adopts is projection mode, forms the image of required keyboard through light projection when needed, and can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01G06F3/02
Inventor 姜晓丹刘勤何永振
Owner BEIJING CHUANGSI BODE TECH CO LTD
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