Remote pointing virtual system of infrared laser pointer
The new infrared laser pen that performs the function of the mouse is infrared laser emission module, image processing module, radio signal transfer module The mouse control module is connected again. The infrared laser transmitter module transfers the infrared beam to the imaging module of the projection surface to save the image of the projection surface and the transmission infrared part of the image. The image signal obtained after filtering is the image processing module. The infrared laser pen is a large screen reaction. For example, the large-scale surface television of the municipal administration, it is especially suitable for projection applications. Infrared can move the mouse pointer and work with the laser pointer. The existing method is to use the camera to shoot the projection surface, process the image after the captured image and calculate the position of the laser pot. The disadvantage of the method is that if the color of the content displayed on the screen is similar to that of the laser pointer, it will hinder the calculation of spot position and cause big errors. If a high-performance and high-light laser pen is used to distinguish the background points, too bright spots will affect the visual experience of the audience.
Tags
Technology
Large screen projection is an educational conference. Lectures and other activities are increasingly used. In order to achieve a better demonstration effect, the computer is often used to interact with the teacher in addition to the presentation of the demonstration intensity by the projector. Currently operating the PC with loudspeakers is mouse, keyboard and laser There are two types of pens that both have their own limits. Using the loudspeaker when operating with the mouse or keyboard is very impractical. When operating with the Laser pointer, the general laser pen generally has only lateral rotation and the control is limited. Image processing module radio signal transmission. It includes the successive connection of the mouse control module, the infrared laser transmission module is used, to transfer the infrared light speed to the projection surface, the capture module is used to capture the image of the projection surface, Filter the collected image signal and transfer the remaining infrared images to the image processing module.The image processing module calculates the projection surface according to the image of the infrared part.
2021-09-10 10:29:48
Your Answer: