Image processing-based implement method and device of virtual keyboard

A virtual keyboard and image processing technology, applied in the field of human-computer interaction, can solve the problems of occupying the screen area, easy damage of the folding keyboard, difficulty in maintenance, low accuracy and speed, etc., to achieve convenient use, ideal character display effect, and high fault tolerance. Effect

Inactive Publication Date: 2015-11-04
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above-mentioned existing touch-type soft keyboards and foldable keyboards are: the size of each button of the touch-screen type soft keyboard is restricted by the size of the screen, and the accuracy and speed of input are not h

Method used

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  • Image processing-based implement method and device of virtual keyboard
  • Image processing-based implement method and device of virtual keyboard

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Embodiment 1

[0045] The embodiment of the present invention adopts a virtual keyboard based on human motion recognition technology and image processing technology, does not need a keyboard entity, collects finger movements in the keyboard area through a camera, and recognizes the pressed button and the user's knocking action through motion processing, and generates it with software Tap the command to realize the function of human-computer interaction.

[0046] This embodiment provides a processing flow of an implementation method of a virtual keyboard based on image processing as follows: figure 1 As shown, the following processing steps are included:

[0047] Step S110, projecting the virtual keyboard onto a designated plane through the camera.

[0048] The virtual keyboard is projected onto the virtual keyboard area in a designated plane through the built-in camera of the smart terminal, and the designated plane may be a desktop or a wall or surfaces of various devices.

[0049] Each b...

Embodiment 2

[0070] This embodiment provides a device for realizing a virtual keyboard based on image processing, and its specific realization structure is as follows: figure 2 As shown, it can specifically include the following modules:

[0071] The virtual keyboard construction module 21 is used to project the virtual keyboard into a specified plane through the camera;

[0072] The target button determining module 22 is used to collect the image of the user knocking on the virtual keyboard through the camera, and determine the target button pressed by the user according to the image and the position information of the virtual keyboard;

[0073] The target key release or long press operation determination module 23 is configured to acquire the user's release operation or long press operation on the target key by analyzing subsequent images of the user tapping the virtual keyboard captured by the camera.

[0074] Further, the virtual keyboard construction module 21 is specifically used t...

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Abstract

The embodiment of the invention provides an image processing-based implement method and an image processing-based implement device of a virtual keyboard. The method mainly comprises the steps as follows: projecting the virtual keyboard in an appointed plane via a camera and collecting an image that a user taps the virtual keyboard via the camera, and determining a target key pressed by the user according to the image and the position information of the virtual keyboard, and obtaining a releasing operation or long-pressing operation of the user to the target key by analyzing the follow-up images collected by the user to tap the virtual keyboard. According to the embodiment of the invention, by projecting the virtual keyboard to the appointed plane via the camera, and collecting the image that the user taps the virtual keyboard, and judging the pressing, long-pressing and releasing operations of the user in the virtual keyboard via a human movement recognition technology and a image analysis technique, the method and the device could achieve the convenient input of an intelligent so as to be convenient for meeting the requirement of the user.

Description

technical field [0001] The invention relates to the field of human-computer interaction, in particular to a method and device for realizing a virtual keyboard based on image processing. Background technique [0002] In recent years, with the development of modern science and technology, there are more and more handheld devices such as smartphones and tablet computers, and their advantages of high functional integration, small size and easy portability are favored by more and more people. Due to the small size of these handheld devices, it would be very inconvenient to use a traditional large keyboard for human-computer interaction. In order to facilitate the communication between the user and the computer, the design of the user input method becomes extremely important. In recent years, various keyboards for such handheld smart phones have appeared on the market, such as touch-screen soft keyboards, folding keyboards, and the like. [0003] Touch-type soft keyboard: mainly ...

Claims

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Application Information

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IPC IPC(8): G06F3/0488G06F3/042
Inventor 魏志强殷波丛艳平宫飞翔孙民贵
Owner OCEAN UNIV OF CHINA
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