文章基本信息

标题：3d Photorealistic Modelling Of Stone Monuments By Dense Image Matching
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作者：M. Cabrelles ; A.E. Segui ; S. Navarro 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：2010
卷号：XXXVIII - Part 5
页码：121-124
出版社：Copernicus Publications
摘要：In this paper we present a methodology to derive accurate 3D photo models of a World Heritage site by means of close range photogrammetry. A freestanding monument inside the Petra Archaeological Park in Jordan close to the gate, the Djin Block No. 9, is chosen to determine the benefits of standalone dense image matching techniques to build up photorealistic models in 3D. 16 colour images acquired with a Canon EOS 1Ds Mark III digital camera are used to generate the photorealistic model. Processing starts after carrying out a self-calibration bundle block adjustment. Ground control points are used to scale and rotate the solution. Dense image matching constrained to the epipolar geometry without resampling the original images is used to determine the colour point clouds. Different parameters are analysed for matching as well as different thresholds for filtering. The point clouds are triangulated to eventually build up a TIN model. Finally, accurate texturing with Z-buffer techniques follows to provide colour information to the 3D model. The presented approach is suitable for off-the-self digital cameras and yields highly accurate 3D photorealistic models with multiple overlapping images taken around the monument. The image-based methodology presented herein with the SLR digital camera can be considered either a serious alternative to other much more expensive approaches based on range-based devices (e.g. terrestrial laser scanners) or a complement to record cultural heritage
关键词：Photogrammetry; Orientation; Matching; Cultural Heritage; Modelling