Optical remote-control system and method applying to computer projection picture

Abstract

The invention discloses an optical remote control system applied to computer projection images; the optical remote control system works with a computer and a projector for projecting the computer projection images. The system comprises a projection pen for controlling the emitted beams and forming light shadow on the computer projection image, an image capturing device for capturing images from the light shadow, and an image processing module. The image processing module stores on the operational definition related to the light shadow; the module is used to receive the light shadow image information and timely generate an operating instruction for controlling the computer, according to the operational definition of the light shadow. The invention throws over the original computer remote control mechanism and enables the operator to execute the computer operation functions of a keyboard or mouse as long as the beams emitted by the projection pen point to the projection image no matter where the operator is, through optical and image processing methods.

Description

technical field [0001] The invention relates to a computer remote control device, in particular to an optical remote control system that can be manipulated on a computer projection screen. Background technique [0002] In general conferences or large-scale seminars and other occasions, speakers often need to use computers and projection devices to display relevant information in front of everyone, so that participants and audiences can pay attention to and understand the content together. According to the existing technology, when the speaker needs to control the computer during the narration process, such as the next page of the slide, or opening a certain file, etc., he must interrupt the narration himself, return to the computer to operate, or ask an assistant for help, or Use a wireless mouse. [0003] The so-called wireless mouse uses infrared or Bluetooth transmission technology to transmit control signals to the computer. The operator can perform functions such as cl...

AI Technical Summary

Problems solved by technology

However, although the wireless mouse is convenient, since the signal it sends needs to be received by the host computer, it is still necessary to pay attention to the distance between the wireless mouse and the computer within the range.

[0004] In addition, most wireless mice do not have the function of a laser projection pen. The speaker must hold a microphone and operate the wireless mouse. When it comes to prompts, he needs to use a laser projection pen to mark on the projection screen, which is very busy and inconvenient

Even though there are wireless mice that also have the function of a laser projection pen on the market, it still feels cumbersome and difficult for the speaker to hold a microphone in one hand and a wireless mouse that is too bulky in the other.

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