Method for generating image retrieval database, method and device for augmenting reality

Abstract

The invention discloses a method for generating image retrieval database, a method and device for augmenting reality. After a first scale transformation is performed on the 3D sample surface texture image, multi-resolution analysis is performed; then, the multi-resolution analysis processed 3D sample surface texture image is subjected to feature extraction; a first feature data set is extracted; cluster analysis is performed on the feature points in the first feature data set to obtain N clusters and feature description information of cluster center feature points of the clusters; cluster analysis is performed on the cluster center feature points of each cluster of the N clusters to obtain M clusters and description information of the cluster center feature point of each cluster of the M clusters; the first feature dataset and node data are stored in an image retrieval database and correspond to a 3D sample surface texture image, wherein the node data includes all the cluster centers of the N clusters and the M clusters and the feature description information of each cluster center feature point.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to an image retrieval database generation method, an augmented reality method and a device. Background technique [0002] Augmented reality technology (Augmented Reality, AR) uses computer graphics technology and visualization technology to generate virtual objects that do not exist in the real environment, and accurately integrates virtual objects into the real environment through image recognition and positioning technology. The real environment is integrated and presented to the user with a real sensory experience. The primary technical problem to be solved by augmented reality technology is how to accurately integrate virtual objects into the real world, that is, to make virtual objects appear at the correct position in the real scene at the correct angle and posture, thereby producing a strong sense of visual reality. [0003] The existing augmented reality technology ...

AI Technical Summary

Problems solved by technology

[0003] The existing augmented reality technology usually initializes the data to be displayed in augmented reality according to the matching of a small amount of (generally less than 10) local template data, and then performs augmented display with the corresponding target image, wherein all target images are Users need to select and upload and generate corresponding template data on a specific client. It can be seen that the template data is generated according to the target image, and the number of generated template data is too small, so that the template data and the target image The matching degree of the template data is low, so that the virtual object corresponding to the template data cannot be accurately positioned in the real scene, resulting in the problem of deviation in the superposition and fusion of the virtual object in the real scene

Images