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Virtus touch screen system based on camera head

A technology of virtual touch and camera, applied in the field of human-computer interaction, to achieve the effect of simple configuration and low price

Inactive Publication Date: 2007-02-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

CN1378171A Invention Patent Announcement announced a large-screen non-contact control method, which makes the human-computer interaction of the large-screen display system simple and effective, but it also requires a red laser pointer with a wireless mouse left and right buttons to generate special signals

Method used

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  • Virtus touch screen system based on camera head
  • Virtus touch screen system based on camera head
  • Virtus touch screen system based on camera head

Examples

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Embodiment Construction

[0031] An embodiment of the present invention is as figure 1 The system shown, can make a normal display screen function as a touch screen using only multiple cameras. The fingers move and click on the virtual screen to directly operate the icons, menus, etc. displayed on the display screen. Among them, the display screen can be various types such as LCD or CRT, and can also be a projection screen; it can be driven by fingers, or it can be other pointers such as sticks; the computing device can be realized by computer software or by hardware; It can be two or more, and only two are used in this example.

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Abstract

A virtual touch screen based on camera shooting tube is prepared as pointing at least two camera shooting tubes to display screen from different visual angle to let display screen be in view finding range completely, making virtual screen be any plane in front of and in parallel to display screen, shooting finger movement and click action at virtual screen by said tubes, using computer to convert these actions to be relevant command and executing these commands for realizing man-machine interactive operation.

Description

Technical field [0001] The invention is a camera-based virtual touch screen system, which belongs to the field of human-computer interaction. Background technique [0002] At present, the traditional screen interaction device is a touch screen, which can be used to replace a mouse or a keyboard. When working, first use a finger or other objects to touch the icons or menus displayed on the touch screen, and then the system detects the position touched by the finger and performs preset interactive operations according to the position information. The touch screen is composed of two parts: a touch detection component and a touch screen controller. The touch detection component is installed in front of the display screen to detect the position touched by the user and send the information to the touch screen controller; the touch screen controller receives the position information from the detection component, converts it into contact coordinates and sends it to the CPU , while...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/00
Inventor 贾云得徐一华李善青
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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