期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 5
出版社：Copernicus Publications
摘要：Zebra-crossings are very specific road features that are less generalized when imaged at different scales. We aim to use zebra-crossings as control objects for georeferencing the images provided by a Mobile Mapping System (MMS) using the oriented aerial images of the same area. In this paper, we present a full automatic method for 3D zebra-crossing reconstruction from our MMS calibrated stereo rig. In our image-based georeferencing context, reconstruction accuracy is a priority. The only assumption made is that each zebra-crossing band is supposed to be planar and to have an a priori known 3D width. The method consists in reconstructing the 3D edges using a sub-pixel edge matching process by dynamic programming. The detection step is run on all 3D edges around the estimated road plane by looking for parallel segment lines with specific distances. The accurate 3D plane of each band is then estimated from the points belonging to the two previously detected sides. The short sides of each band are detected on the image and are projected onto the 3D plane of the band. Our method is robust and provides promising results. We have a good geometric accuracy
关键词：Zebra-crossing detection ; Pedestrain crossing ; Road-mark ; 3D Reconstruction ; Mobile mapping ; Visual based ; georeferencing; Edge matching ; Robust road plane detection; Close range photogrammetry
