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    Cloud-based 3D Reconstruction of Cultural Heritage Monuments using Open Access Image Repositories

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    Date
    2014
    Author
    Hadjiprocopis, Andreas
    Wenzel, Konrad
    Rothermel, Mathias
    Ioannides, Marinos
    Fritsch, Dieter
    Klein, Michael
    Johnsons, Paul S.
    Weinlinger, Guenther
    Doulamis, Anastasios
    Protopapadakis, Eftychios
    Kyriakaki, Georgia
    Makantasis, Kostas
    Fellner, Dieter W.
    Stork, Andre
    Santos, Pedro
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    Abstract
    A large number of photographs of cultural heritage items and monuments is publicly available in various Open Access Image Repositories (OAIR) and social media sites. Metadata inserted by camera, user and host site may help to determine the photograph content, geo-location and date of capture, thus allowing us, with relative success, to localise photos in space and time. Additionally, developments in Photogrammetry and Computer Vision, such as Structure from Motion (SfM), provide a simple and cost-effective method of generating relatively accurate camera orientations and sparse and dense 3D point clouds from 2D images. Our main goal is to provide a software tool able to run on desktop or cluster computers or as a back end of a cloud-based service, enabling historians, architects, archaeologists and the general public to search, download and reconstruct 3D point clouds of historical monuments from hundreds of images from the web in a cost-effective manner. The end products can be further enriched with metadata and published. This paper describes a workflow for searching and retrieving photographs of historical monuments from OAIR, such as Flickr and Picasa, and using them to build dense point clouds using SfM and dense image matching techniques. Computational efficiency is improved by a technique which reduces image matching time by using an image connectivity prior derived from low-resolution versions of the original images. Benchmarks for two large datasets showing the respective efficiency gains are presented.
    BibTeX
    @inproceedings {10.2312:gch.20141316,
    booktitle = {Eurographics Workshop on Graphics and Cultural Heritage - Short Papers / Posters},
    editor = {Reinhard Klein and Pedro Santos},
    title = {{Cloud-based 3D Reconstruction of Cultural Heritage Monuments using Open Access Image Repositories}},
    author = {Hadjiprocopis, Andreas and Wenzel, Konrad and Rothermel, Mathias and Ioannides, Marinos and Fritsch, Dieter and Klein, Michael and Johnsons, Paul S. and Weinlinger, Guenther and Doulamis, Anastasios and Protopapadakis, Eftychios and Kyriakaki, Georgia and Makantasis, Kostas and Fellner, Dieter W. and Stork, Andre and Santos, Pedro},
    year = {2014},
    publisher = {The Eurographics Association},
    ISBN = {978-3-905674-75-0},
    DOI = {10.2312/gch.20141316}
    }
    URI
    http://dx.doi.org/10.2312/gch.20141316
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    Eurographics Association copyright © 2013 - 2023 
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    Theme by @mire NV
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