Automatic Line Matching and 3d Reconstruction of Buildings from Multiple Views
نویسنده
چکیده
This paper describes two developments in the automatic reconstruction of buildings from aerial images. The first is an algorithm for automatically matching line segments over multiple images. The algorithm employs geometric constraints based on the multi-view geometry together with photometric constraints derived from the line neighbourhood, and achieves a performance of better than 95% correct matches over three views. The second development is a method for automatically computing a piecewise planar reconstruction based on the matched lines. The novelty here is that a planar facet hypothesis can be generated from a single 3D line, using an inter-image homography applied to the line neighbourhood. The algorithm has successfully generated near complete roof reconstructions from multiple images. This work has been carried out as part of the EC IMPACT project. A summary of the project is included.
منابع مشابه
A Dynamic Multi-Projection-Contour Approximating Framework for the 3D Reconstruction of Buildings by Super-Generalized Optical Stereo-Pairs
In this paper, a novel framework of the 3D reconstruction of buildings is proposed, focusing on remote sensing super-generalized stereo-pairs (SGSPs). As we all know, 3D reconstruction cannot be well performed using nonstandard stereo pairs, since reliable stereo matching could not be achieved when the image-pairs are collected at a great difference of views, and we always failed to obtain dens...
متن کاملIntegrated-approach-based Automatic Building Extraction
This paper presents an approach to automatic building extraction from large-scale aerial images. It is based on the integration of multiple information, knowledge and appropriate methods, and hierarchically consists of three major parts: building detection, building segment extraction, 3D feature matching and building modelling. Buildings are detected by segmenting DSMs using grey-scale mathema...
متن کاملExtracting 3d Edgel Hypotheses from Multiple Calibrated Images: a Step towards the Reconstruction of Curved and Straight Object Boundary Lines
This paper describes a novel technique to extract elementary linear elements from multiple views, often called edgels, that are 3D points with tangent direction. Techniques based on stereopair feature, edgel or contour, matching have been intensively developed in the 80s. The relatively poor quality of images used at the time and the ill-posed stereo context contributed to focus the research ar...
متن کاملA Plane-sweep Strategy for the 3d Reconstruction of Buildings from Multiple Images
A new method is described for automatically reconstructing a 3D piecewise planar model from multiple images of a scene. The novelty of the approach lies in the use of inter-image homographies to validate and best estimate planar facets, and in the minimal initialization requirements — only a single 3D line with a textured neighbourhood is required to generate a plane hypothesis. The planar face...
متن کاملThree-dimensional buildings reconstruction from IKONOS stereo images
High resolution IKONOS stereo imagery provides an important data source for threedimensional scene extraction. In urban areas, it has been long a challenge topic to automatically extract urban objects from images due to the high object density and scene complexity. In this paper, we propose a new method for automatic 3d building reconstruction from IKONOS stereo images. Our approach is based on...
متن کامل