Remote virtual touch system of infrared laser pen

An infrared laser and virtual touch technology, applied in the field of human-computer interaction, can solve the problems of human body occluding the screen, easy to misidentify, unable to touch, etc., and achieve the effect of avoiding human body occluding the screen, accurate identification, and avoiding position errors.

Inactive Publication Date: 2009-04-29
ANHUI UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, these types of large-size touch screens are expensive, and there is a problem that human hands cannot touch the screen due to the large size of the touch screen or the screen is blocked by the human body when touching, so a virtual touch tool for remote fingering is needed
Ordinary laser pointers realize long-distance indication by emitting red laser light, and set buttons to perform simple operations such as turning up and down the presentation, but it cannot realize

Method used

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  • Remote virtual touch system of infrared laser pen
  • Remote virtual touch system of infrared laser pen
  • Remote virtual touch system of infrared laser pen

Examples

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Example Embodiment

[0028] see figure 1 , an infrared laser pointer remote pointing virtual touch system is characterized in that it is composed of a computer system, an infrared laser pointer, an image acquisition device, and an image recognition and positioning module; wherein:

[0029] Computer system, including display device, computer host, the display device can be a large-size projection screen, a large-size liquid crystal display, a large-size rear projection device or an ordinary wall;

[0030] An infrared laser pointer has an infrared laser emitting button, which can emit an infrared laser to point to the display screen of the display device;

[0031] The image acquisition device is installed in front of the display device, and the display screen is completely included in its viewfinder range, and is used to obtain the display screen image including the infrared laser point emitted by the infrared laser pointer;

[0032] The image recognition and positioning module recognizes the infra...

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PUM

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Abstract

The invention discloses an infrared laser pointer remote pointing and virtual touch system which is characterized in that the system is composed of a computer system, an infrared laser pointer, an image acquisition device and an image identification positioning module; the computer system comprises a display device and a mainframe computer; the infrared laser pointer is provided with an infrared laser emitting key and can emit an infrared laser to point to a display screen; the image acquisition device is arranged in front of the display device to completely contain the display screen in the viewfinder range; the image identification positioning module identifies an infrared laser point and the position thereof in the display screen according to the acquired image, differentiates different operations including light spot instruction, light spot movement and clicking according to the time length and the times of the infrared laser, controls the computer system to generate a light spot at the corresponding position on the display screen and completes the corresponding operation. The invention is especially suitable for large-screen display equipment.

Description

technical field [0001] The invention is an infrared laser pointer remote pointing virtual touch system, which belongs to the field of human-computer interaction. Background technique [0002] Touch has changed traditional input methods such as keyboard and mouse, making human-computer interaction more convenient. Ordinary touch screens include infrared type, resistive type, surface acoustic wave type, capacitive type, etc., and the user's finger touches the surface of the touch screen to generate a signal conversion to realize the control operation. However, these types of large-size touch screens are expensive, and there is a problem that human hands cannot touch the screen due to the large size of the touch screen or the screen is blocked by the human body when touching, so a remote pointing virtual touch tool is needed. Ordinary laser pointers can realize long-distance indication by emitting red laser light, and set buttons to perform simple operations such as turning up...

Claims

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Application Information

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IPC IPC(8): G06F3/033G06F3/042G06F3/0354
Inventor 吴建国刘政怡周建强刘苏南吴海辉李炜郭星
Owner ANHUI UNIVERSITY
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