METHOD AND APPARATUS FOR ENVIRONMENT MODELING FOR AR

摘要

An environment modeling method for the application of an augmented reality, provided by the present invention, includes the following processes of: obtaining a two-dimensional image through a camera, estimating the preset number of vanishing points in the obtained image through a user interaction, and defining a front side; obtaining a three-dimensional box model by producing a plane through the depth determination of a three-dimensional area from the two-dimensional image by using the estimated vanishing points and the defined front side; detecting a feature point from the image in which the three-dimensional box model is obtained and matching the detected feature point with the feature point of a gravity-aligned image by using gravity information which is obtained through sensing information of an acceleration sensor; and generating a virtual annotation by performing a three-dimensional recovery through the feature point matching. [Reference numerals] (210) Capture an image; (212) Estimate a vanishing point; (214) Produce a homography between pattern images; (216) Remove a viewpoint distortion; (218) Define vertex coordinates; (220) Define a front side; (222) Select coordinates of a specific vertex; (224) Determine a depth through a line which is generated in a vertical direction; (226) Produce a plane; (228) Extract a specific point; (230) Estimate the six degrees of freedom position