Virtual tracking keyboard

Abstract

The invention discloses a virtual tracking keyboard which comprises an image collecting module, an image pre-processing module, a position and action resolving module, a position and action display module and an action executing module, wherein the image collecting module is a camera with an illuminating device and an optical filter; a collected finger image is initially processed by the image pre-processing module and is resolved by the position and action resolving module, so that the position of the finger and the key position corresponding to the action of the finger are obtained; the position and action display module is used for respectively displaying the position and action of the finger according to two display schemes; and the action executing module is used for performing corresponding input operation according to the key position of the action of the finger. The virtual tracking keyboard has the characteristics of space-saving property, strong mobility and suitability for blind typing.

Description

technical field [0001] The invention relates to the field of virtual keyboards, in particular to a virtual keyboard used in mobile phones, tablet computers, notebook computers and home desktop computers. Background technique [0002] Electronic devices such as mobile phones, tablet computers, laptops and home desktop computers play an increasingly important role in our lives. To some extent, it can even be said that human life is inseparable from them. In the process of using them, the keyboard is one of the indispensable devices, and it plays a major role in man-machine dialogue. In some new mobile phone products recently, voice control functions (such as Apple's Siri) have been introduced, but the technology is not mature enough, or users are still not used to it, so it is difficult to popularize it in the short term, let alone replace the keyboard function. Therefore, the status of the keyboard in these electronic products is still unshakable. [0003] Formally, keyboar...

AI Technical Summary

Problems solved by technology

Mechanical keyboards occupy almost the entire market in desktop computers and notebook computers. After a long period of development, the technology has been quite mature and it is quite convenient to use. However, due to its large size, it is inconvenient to move and takes up a lot of space. ; The soft keyboard occupies a considerable market in mobile phones and tablet computers, and its feature is that it can increase the screen space. Due to the limited space, it is difficult to locate when inputting, and it becomes extremely inconvenient; the laser keyboard was invented to overcome this difficulty. Applicable, you need to look at the strong laser projection during use, which is not healthy for human eyes. During the input process, because the laser projection does not have prominent points on the F and J keys like the mechanical keyboard, the user must look at the keyboard, which cannot be realized Touch typing, which is extremely inconvenient in the case of a large number of input

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