The method for realizing the recognition of the super bright cursor of the laser pointer by using the overexposure of the CCD sensor involves image acquisition and the recognition technology of the super bright cursor of the green laser pointer. The present invention is to solve the problem that the laser pointer and visible light are mixed together in the existing laser pointer recognition method, which leads to wrong recognition of the position indicated by the pointer. The method of the present invention for realizing the recognition of the super-bright cursor of a laser pointer by over-exposing a CCD sensor uses a CCD camera to take a picture of the surface of the object to be indicated to obtain a cursor image. If there is a super-bright cursor image in the cursor image, it is determined The surface of the object to be instructed has the laser mark projected by the laser pointer, otherwise it is determined that the surface of the object to be instructed does not have the laser mark projected by the laser pointer.
The existing laser pointer recognition method requires the camera to collect visible light images. The image information contains both the laser pointer and the pointed object, such as fluorescent screens, incandescent lamps, LED indicators, etc. The laser pointer and visible light are mixed together. It is easy to misidentify the correct cursor position, which has a great impact on the human-computer interaction interface. No, the high powered laser is an electromagnetic wave, which can propagate in a vacuum without a medium. Electromagnetic waves are not mechanical waves, but matter waves. The former requires a medium, and the latter can propagate without a medium. Even the medium can hinder the propagation of electromagnetic waves. For example, the speed of light in the air is lower than that in vacuum and lower in water. If it is the production of laser, it cannot be produced without the excited medium. The three elements of laser production include the excited medium, but the propagation does not have this limitation.