Piecewise Planar and Non-Planar Stereo for Urban Scene Reconstruction

Piecewise planar models for stereo have recently become popular for modeling indoor and urban outdoor scenes. The strong planarity assumption overcomes the challenges presented by poorly textured surfaces, and results in low complexity 3D models for rendering, storage, and transmission. However, such a model performs poorly in the presence of non-planar objects, for example, bushes, trees, and other clutter present in many scenes. We present a stereo method capable of handling more general scenes containing both planar and non-planar regions. Our proposed technique segments an image into piecewise planar regions as well as regions labeled as non-planar. The nonplanar regions are modeled by the results of a standard multi-view stereo algorithm. The segmentation is driven by multi-view photoconsistency as well as the result of a colorand texture-based classifier, learned from hand-labeled planar and non-planar image regions. Additionally our method links and fuses plane hypotheses acro...

• Type: Conference
• Year: 2010
• Where: CVPR
• Authors: David Gallup, Jan-Michael Frahm, Marc Pollefeys
• Keywords: Computer Vision, CVPR 2010, Piecewise Planar, Piecewise Planar Models, Piecewise Planar Regions