Abstract
IWe present an interactive system for generating photorealistic,
textured, piecewise-planar 3D models of architectural structures and
urban scenes from unordered sets of photographs. To reconstruct 3D
geometry in our system, the user draws outlines overlaid on 2D
photographs. The 3D structure is then automatically computedby
combining the 2D interaction with the multi-view geometric information
recovered by performing structure from motion analysis on the input
photographs. We utilize vanishing point constraints at multiple stages
during the reconstruction, which is particularly useful for
architectural scenes where parallel lines are abundant. Our approach
enables us to accurately model polygonal faces from 2D interactions in
a single image. Our system also supports useful operations such as edge
snapping and extrusions.
Seamless texture maps are automatically generated by combining multiple
input photographs using graph cut optimization and Poisson blending.
The user can add brush strokes as hints during the
texture generation stage to remove artifacts caused by unmodeled
geometric structures. We build models for a variety of architectural
scenes from collections of up to about a hundred photographs.
@article{sinha:2008,
author = {Sudipta N. Sinha and Drew Steedly and Richard Szeliski and
Maneesh Agrawala and Marc Pollefeys},
title = {Interactive 3D Architectural Modeling from Unordered Photo Collections},
journal = {ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2008)},
year = {2008},
volume = {to appear},
number = {to appear},
pages = {to appear},
}
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