Positioning method and apparatus for implementing multi-point touch control for any plane without peripheral at four sides

Abstract

The invention provides a method and a system for realizing the positioning of the multipoint touch control without the need of arranging auxiliary devices on four sides of any planes. The device can realize the touch-control function on any screens and planes, even without auxiliary devices arranged on, and simultaneously conduct multipoint touch and accurate positioning; and the algorithm is efficient, and the computation of coordinates of touch point positions is accurate, reliable and convenient; elements and the structure are simple; the on-screen identification and calibration; the cost is low; and the system can be flexibly designed on arbitrary-sized screens or plane carriers for realizing the multipoint touch. The system comprises hardwares, such as an infrared laser, a projector, an infrared camera, and the like, and softwares, such a multipoint touch-control platform, and a multipoint touch-control application soft ware. The invention can realize that the multipoint touch-control device can be used and afforded by any person, and the great social and economic benefits can be generated.

Description

technical field [0001] The present invention relates to a multi-touch device, and more specifically, the present invention relates to a positioning method and device capable of realizing multi-touch on four sides of any plane without additional equipment. Background technique [0002] At present, the touch screen is only a tool to replace the mouse and keyboard. Due to cost considerations, most control panels use resistive type. Infrared, ultrasonic, or surface capacitive technologies are becoming more and more popular along with diversified large-size panel application products. Large-size touch panels that are easy to use and facilitate interaction have shifted from industrial and commercial applications to the surrounding areas of people's lives. [0003] With the development of human-computer interaction, the use of human feeling and action (such as voice, handwriting, posture, sight, expression, etc.) development process. It has become an inevitable trend for the eas...

AI Technical Summary

Problems solved by technology

Infrared sensor touch screen is only suitable for a variety of non-open-air occasions

[0005] Moreover, almost all touch screen technologies need to add many components around the screen, and some have thick components on the bottom, which is neither beautiful nor hinders user operation, and the cost is relatively high.

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