Combination method of two-dimensional stitching and three-dimensional surface reconstruction of image

Abstract

The invention discloses a combination method of the two-dimensional stitching and the three-dimensional surface reconstruction of an image. The combination method comprises the following steps: preprocessing an input image, and extracting feature points; carrying out feature point matching, and screening point sets which succeed in pairing to obtain a multiple-view geometrical corresponding relationship of the feature points; according to the corresponding relationship of the feature points, calculating a projection reconstruction relationship of a scene, and obtaining the relative position and the relative posture of a camera in a three-dimensional space; carrying out metric reconstruction and global optimization; according to the relative position relationship of the camera in the three-dimensional space, selecting a proper visual angle and observation plane, establishing the projection relationships of all images on the observation plane; and carrying out the image stitching and the three-dimensional surface reconstruction. The combination method fully considers the common points and the different points of the two-dimensional stitching and the three-dimensional surface reconstruction technology of the image, extracts common steps in the implementation processes of the two-dimensional stitching and the three-dimensional surface reconstruction, and can simultaneously obtain the panoramic image and the three-dimensional surface of the scene in relatively short time.

Description

technical field [0001] The invention belongs to the technical field of computer vision and image processing, in particular to a combination method of two-dimensional image stitching and three-dimensional surface reconstruction. Background technique [0002] With the rapid development of computer technology, computer vision and image processing technology have been widely used in all aspects of modern life, especially in image stitching and image-based 3D modeling. Nowadays, we can see 2D panoramas or 3D panoramas of many scenic spots on webpages such as various map software suppliers and travel websites. In addition, panoramic photography technology often plays an important role in taking group photos. We can use panoramic photography technology to place a circular queue in a long strip of photos. [0003] The technology of 2D mosaic and 3D reconstruction of images is developing rapidly. The image stitching method based on the basic matrix and the homography matrix has bee...

AI Technical Summary

Problems solved by technology

However, due to the small size of the lens itself or the high magnification, the field of view of the image captured by this type of camera is very limited

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