Virtual touch system, image identifying and locating method and computer readable storage medium

Abstract

The invention discloses a virtual touch system, an image identifying and locating method and a computer readable storage medium. The virtual touch system comprises an image obtaining device, a microcontroller and a USB-HID description program module. The image obtaining device comprises two camera shooting points, and is used for constructing a virtual touch screen in front of a display screen / curtain; the microcontroller is used for controlling the two camera shooting points to collect images simultaneously, executing an image identifying and locating program module to process the collected images, and obtaining position coordinates of touch points; the USB-HID description program module is executed on the microcontroller, and is used for encapsulating HID report descriptors of the touchposition coordinates, and sending the HID report descriptors to a computer associated with the display screen / curtain. By means of the virtual touch system, the image identifying and locating method and the computer readable storage medium, the microcontroller is utilized to encapsulate the touch function, and is independent from a computer system, and the touch function of displaying equipment ofany size can be achieved; the virtual touch system is erected instantly and used instantly, and the displaying equipment does not need to be refit; meanwhile, boundaries are initialized, and the universality is high.

Description

technical field [0001] The invention relates to the field of human-computer interaction, in particular to a virtual touch system based on an embedded technology USB-HID mode and an image recognition and positioning method for the virtual touch system. Background technique [0002] Compared with traditional input methods such as mouse and keyboard, touch is simpler and more convenient, and has become a new human-computer interaction method. It uses the touch action of objects such as fingers on the screen surface to realize the control operation of the computer. Common touch screens include infrared, resistive, surface acoustic wave, capacitive, etc. These types of touch screens are directly related to the size of the screen. After the finished product is formed, it will not be able to adapt to the change of the screen size. [0003] Chinese patent document CN101364159A discloses a virtual touch system based on image recognition, which consists of two one-dimensional image ac...

AI Technical Summary

Problems solved by technology

[0005] The initial setup of the virtual touch system described above is tedious

In addition, the touch function is integrated in the computer system itself, which requires specific software installed in the computer system to perform touch. At the same time, the cost increases with the increase of the screen size, the versatility is poor, and it is inconvenient to use.

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