Projection keyboard means to use projection as a new input method. It uses VKB keyboard technology, and uses the built-in red laser transmitter to project the outline of a standard keyboard on any surface, and then tracks the finger movements through infrared technology. Finally Acquire the input information.
Projection keyboard
Projection keyboard means to use projection as a new input method. It uses VKB keyboard technology, and uses the built-in red laser transmitter to project the outline of a standard keyboard on any surface, and then tracks the finger movements through infrared technology. Finally Acquire the input information.
advantage
The advantage of the projection keyboard is that it is easy to carry and has a smaller volume than a physical keyboard.
Gesture operations such as zoom in and out can be performed.
Disadvantage
Without the touch of a physical keyboard, it is easier to accidentally touch than a physical keyboard.
Use a pattern projector, a camera, and a linear induction laser.
First project the pattern onto the plane
A word line laser is set at the bottom to identify the laser spot formed by finger movement
Camera captures laser spot to complete recognition
