A virtual keyboard operating device, system and method

Abstract

The invention provides a man-machine interactive type virtual touch device, system and method. The method comprises the steps that a camera is utilized for collecting user finger image data to determine the positions of the end points of fingers in an image, the pixel resolution degree of the camera is combined, and therefore the pixel positions of the end points of the fingers are respectively converted into a two-dimensional coordinate value of an XZ coordinate surface and a two-dimensional coordinate value of a YZ coordinate surface. According to the two-dimensional coordinate value of the pixel positions of the end points of the fingers on the XZ coordinate surface and the two-dimensional coordinate value of the pixel positions of the end points of the fingers on YZ coordinate surface, the coordinate value of the end points of the fingers in an XYZ three-dimensional coordinate system is calculated, the operation of a user on keys of a virtual keyboard is judged by combining the position area corresponding to each key in the virtual keyboard, an operation image of simulating the fingers of the user on the corresponding keys of the virtual keyboard is drawn according to the judgment result, and the drawn image is displayed to allow the user to look on. According to the device, system and method, the user can conveniently perform free man-machine interactive operation through the virtual keyboard any time any where.

Description

technical field [0001] The present invention relates to the field of virtual touch technology, in particular to a virtual keyboard operating device, system and method. Background technique [0002] The keyboard is an important part of the human-computer interaction in the prior art. The existing keyboard input depends on the physical keyboard device, that is to say, there must be an actual keyboard to complete the human-computer interaction, which greatly limits the The scope and conditions of the place where human-computer interaction takes place. Contents of the invention [0003] In view of the above problems, the present invention provides a virtual keyboard operating device, system and method that overcome the above problems or at least partially solve the above problems. [0004] The present invention provides a virtual keyboard operating device, including a display control unit and a display unit, and the device includes: [0005] The view recognition unit is conf...

AI Technical Summary

Problems solved by technology

[0002] The keyboard is an important part of the human-computer interaction in the prior art. The existing keyboard input depends on the physical keyboard device, that is to say, there must be an actual keyboard to complete the human-computer interaction, which greatly limits the The scope and conditions of the place for human-computer interaction

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