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标题：3D MODELING OF HEADSTONES OF THE 2^ND AND 3^RD CENTURY BY LOW COST PHOTOGRAMMETRIC TECHNIQUES
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作者：T. Landes ; M.-D. Waton ; E. Alby 等
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：2013
卷号：XL-5/W2
页码：397-402
DOI：10.5194/isprsarchives-XL-5-W2-397-2013
出版社：Copernicus Publications
摘要：As a dozen headstones have been discovered during excavations in south Alsace, archaeologists stored them in the Regional Directorate of Cultural Affairs in Strasbourg. In order to complete the survey they are used to practice by hand on the steles, they asked the INSA Strasbourg to reconstruct at least the 7 figured sandstones in 3D. The high accuracy required by the archaeologists can be reached by an expensive technique using laserscanning system. Aim of the current work is to look for an alternative method and (if appropriate) low cost software allowing to provide a similar quality and a sufficient level of details. The 3D reconstruction of the headstones based exclusively on multiple images processing is presented. The step of point cloud generation is detailed because it determines the final product quality. Therefore, an assessment of the produced point cloud has been performed through comparison to a reference point cloud obtained by laser scanning technique. The steps leading to the photo-realistic textured 3D models of the headstones are presented and the software used for that are evaluated. The final product respects the accuracy requirement of 1 mm desired by the archaeologists
关键词：Recording; photogrammetry; 3D modeling; texturing; laserscanning; assessment