ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-3/W4, 173-180, 2015
http://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-3-W4/173/2015/
doi:10.5194/isprsannals-II-3-W4-173-2015
© Author(s) 2015. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
11 Mar 2015
GAP-CLOSING 3D BUILDING RECONSTRUCTION BY ALIGNING BOUNDARIES OF ROOF SEGMENTS AND DETECTING UNCOVERED DETAILS
M. Pohl and D. Bulatov Fraunhofer Institute of Optronics, System Technologies and Image Exploitation, Gutleuthausstr. 1, 76275 Ettlingen, Germany
Keywords: 3D building reconstruction, polygon alignment, cut lines, step lines, boundary of roof faces, uncovered details Abstract. We describe a work flow to border building faces which aims to obtain a detailed and closed building model. Initially, we use the estimated roof planes and the rasterized binary mask of the corresponding inlier set to generate bordering polygons. To close the gaps between the initial boundary polygons and between the polygons and the building ground outline, we introduce an algorithm to align boundaries which successfully works in 2.5D and 3D. To enhance the accuracy of the boundary alignment, we use additional reliable model entities such as cut lines and step lines between the initial estimated roof planes. All gaps that cannot be avoided by this procedure are afterwards covered by a method searching for uncovered details.
Conference paper (PDF, 982 KB)


Citation: Pohl, M. and Bulatov, D.: GAP-CLOSING 3D BUILDING RECONSTRUCTION BY ALIGNING BOUNDARIES OF ROOF SEGMENTS AND DETECTING UNCOVERED DETAILS, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-3/W4, 173-180, doi:10.5194/isprsannals-II-3-W4-173-2015, 2015.

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