Multi-plane dynamic augmented reality registration method based on homography matrix

Abstract

The invention discloses a multi-plane dynamic augmented reality registration method based on a homography matrix, which belongs to the field of computer augmented reality application, and mainly deals with the coordinate mapping relation between the real world and the virtual world. The method comprises the following steps: firstly, utilizing color information and shape information to automatically perform the initial coordinate mapping relation; then carrying out dynamic virtual environmental registration according to the real-time homography matrix calculation; and finally triggering relocation registration according to the shape information. The invention is characterized in that three-dimensional registration is realized by automatically recognizing the known positions in the real environment according to the special attribute of scene features, thus manual operation is not needed for realizing initialization, and automatic initialization is realized; and in terms of the problem that the homography matrix method can realize three-dimensional registration only on the plane of the physical world, the method of the invention utilizes the color information and the shape information to carry out multi-plane dynamic augmented reality registration.

Description

technical field [0001] The invention belongs to the fields of computer augmented reality and computer vision. Specifically, the invention relates to a method for multi-plane dynamic augmented reality registration based on a homography matrix, which is a basic technology for augmented reality applications. Background technique [0002] Augmented reality system has a broad development prospect and has been paid more and more attention by people. It has a wide range of applications in medical research, anatomy training, precision instrument manufacturing, assembly and maintenance, military training, engineering design and remote robots. In order to achieve the perfect combination of virtual and real objects, the virtual objects must be merged into accurate positions in the real world. The augmented reality system must be able to detect the position of the observer in the scene, the angle of observation, and even the direction of movement in real time. In order to help the syste...

AI Technical Summary

Problems solved by technology

For the method of recognizing shape, it often fails to register when the shape is partially occluded (see http: / / www.hitl.washington.edu / artoolkit / ), for the method of recognizing texture, it is more complicated and needs to be learned in advance (see Jacky Baltes. Camera Calibration Using Rectangular Textures. Springer Berlin Publish. 2001)

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