Research On3D Reconstruction Technology Based On Single Image

Image-based three-dimensional reconstruction is one of the hot research in computer, itpenetrates the photogrammetry, computer image processing, computer vision and otherrelated technologies, through a variety of cutting, transform and blanking operations todetermine the geometry of the scene image, build a simple3D models.Single image based modeling of three-dimensional image reconstruction is a simplifiedproblem. In recent years, image-based modeling technology has been the concern ofresearchers. As a relatively low-cost single image modeling, modeling fast, convenienthandling, etc, it has been a rapid development in the relevant field.This paper mainly studied single image-based three-dimensional reconstruction of thekey technologies, the main tasks include the following:1、 Based on the basic principles of image reconstruction techniques and models. Thisarticle describes the basic image-based modeling techniques and the advantages of imagemodeling, discussed the basic principles about projective geometry and hierarchicalreconstruction techniques.2、 After obtained the vanishing point, the use of photogrammetry and computer visionand other related knowledge, accurately calculate the internal and external cameraparameters, rotation matrix and the photography center coordinates.3、 This article describes target object transformed into a rectangular model, Fullytake into account the relative depth of a single image will have an effect on thereconstruction of three-dimensional objects.4、 By combining OpenCV and Visual C++6.0programming, image according tocertain rules into a plurality of small modules, the image texture mapped to thethree-dimensional model of the surface, through processing the image, it obtained moresatisfactory three-dimensional renderings and good reconstruction results.The result of specific examples indicates the correctness of algorithm and feasibility ofsystem. And it has a very broad application prospects in the reconstruction and protection ofAncient architectures, city Planning, virtual roaming technology and other fields.