A method and device for real-time positioning of a convex lens with its main optical axis pointing to a target

Abstract

The invention discloses a method and device for real-time positioning of the main optical axis of a convex lens pointing to a target, and relates to the technical field of human-computer interaction methods, in particular to a human-computer interaction method for real-time positioning and capturing of pointing points by using an image correction algorithm. The realization process mainly includes electromagnetic wave filtering, homography matrix calculation, and convex lens imaging feature application, and the invention does not need to emit laser light or carry a gyroscope. When the position or attitude of the convex lens imaging device changes arbitrarily, resulting in a change in the intersection point of the main optical axis of the convex lens and the plane pointing to the target, the device can report the coordinates of the intersection point of the main optical axis of the convex lens and the plane pointing to the target in the target coordinate system in real time. Utilizing the present invention, human-computer interaction devices such as novel remote controllers, mice, game controllers and the like can be manufactured at extremely low cost with functions of both position pointing and angle pointing.

Description

technical field [0001] The invention relates to the technical field of human-computer interaction methods, in particular to a human-computer interaction method for real-time positioning of pointing points using an image correction algorithm. Background technique [0002] With the increasingly widespread application of computer technology, there are more and more demands for interaction between humans and computer systems. Commonly used human-computer interaction methods generally use the mouse or touch screen to take points, and use laser, infrared or mechanical methods to achieve positioning. When the user needs to select a target on the display device, he only needs to move the corresponding point-taking device to generate a relative physical displacement. Move the cursor on the display device. However, the use of traditional mouse and touch screen in some environments cannot bring ideal intuitive operation experience to people. In order to meet this demand, there are cu...

AI Technical Summary

Problems solved by technology

For the scheme of emitting laser, the safety cannot be guaranteed, and the energy consumption and service life are not ideal; for the scheme realized by combining infrared positioning with gyroscope, the overall realization effect has been basically recognized, such as the wii game control launched by Japanese game manufacturers However, because it needs to process data from two sources, the infrared sensor image displacement value and the gyroscope deflection value, the calculation pressure on the processor is high, resulting in limited information update frequency, relatively high implementation costs, and large angle pointing errors.

In addition, since pointing to the target requires fast real-time positioning, the embedded program of the point-taking device has a very large amount of calculation, and the high equipment requirements and production costs are also important reasons why such technologies and products are not widely used at present.

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