Method and device for realizing dynamic virtual keyboard
A virtual keyboard and dynamic technology, which is applied in the field of electronic information, can solve problems such as virtual keyboard blind typing, and achieve the effect of improving operation efficiency, convenient use, and simple operation
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Embodiment 1
[0046] Provide a kind of realization method of dynamic virtual QWERTY keyboard in this embodiment, generate an invisible area with infrared projection, and project the virtual QWERTY keyboard of full size to a plane, and adopt camera as sensor to capture and can help determine " input " content image.
[0047] In order to accurately obtain the effective range corresponding to the user's keystrokes, it is necessary to determine the relationship (including distance and angle) between the position of each key and the position of the key at the reference position. First, the position of each key is calibrated, such as figure 1 shown, including:
[0048] S101, the user places both hands side by side to simulate the ready state on the mechanical keyboard, and obtains nine reference keys (ie A, S, D, F, J, K, L, and; keys) through sensors (such as cameras), two of which The thumb is on the space key) position information;
[0049] S102, the system presents a character key (such as a ...
Embodiment 2
[0066] This embodiment provides a dynamic and static dual-mode virtual keyboard.
[0067] Wherein the dynamic mode is the same as that in the first embodiment, and is also realized by using infrared projection and camera.
[0068] Use infrared projection to show the user the effective range of a keystroke;
[0069] Obtain the position of each keystroke of the user through a sensor (such as a camera);
[0070] Detect the relationship between the keystroke and its corresponding reference key position, including distance and angle, and then determine the input character.
[0071] On the basis of the dynamic virtual keyboard provided in Embodiment 1, a static mode virtual keyboard is added, and a fixed QWERTY keyboard pattern is displayed to the user by infrared projection, such as Figure 4 As shown, the user is like using a common QWERTY keyboard for character input.
[0072] Users can choose to switch between dynamic mode and static mode.
[0073] When the user's hands are ...
Embodiment 3
[0076] This embodiment provides a dynamic and static mixed virtual keyboard, which is also realized by infrared projection and camera. The so-called dynamic and static mixed virtual keyboard is to set several fixed key positions, which can be directly tapped to input characters, and the rest of the keys are determined according to the relative position information with the reference key.
[0077] A keystroke area with a fixed key position is formed by projection on a plane in advance, and the fixed key position is used to directly tap an input character. Users can customize the buttons that need to be displayed statically according to their needs or input habits, such as Figure 5 As shown in the figure, the buttons "CTRL", "TAB", "backspace", "ENTER" and "WIN" are static display buttons; use infrared projection to show the user an effective range of keystrokes and the buttons that need to be displayed statically (the user can adjust its position);
[0078] When the user's h...
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