Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review
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TY - CONF
T1 - Single camera photogrammetry for reverse engineering and fabrication of ancient and modern artefacts
AU - Kaufman, John
AU - Rennie, Allan
AU - Clement, Morag
PY - 2015/3
Y1 - 2015/3
N2 - Photogrammetry has been used for recording objects for well over one hundred and fifty years. Modern photogrammetry, or digital image capture, can be used with the aid of a single medium range DSLR camera, to transform two-dimensional (2D) images into three-dimensional (3D) CAD spatial representations, and together with the use of additive manufacturing (AM) or 3D Printing technology, geometric representations of original cultural, historic and geological artefacts can be fabricated using a process known as Reverse Engineering. Being able to replicate such objects is of great benefit in education; if the original object cannot be handled because it is too old or delicate, then replicas can give the handler a chance to experience the size, texture and weight of rare objects. Photogrammetry equipment is discussed, the objective being simplicity of execution for eventual realisation of physical products such as the artefacts discussed. As the processing power of computers has increased and become more widely available, and with the use of computer software programs it is now possible to digitally combine multi-view photographs, taken from 360° around the object, into 3D CAD representational virtual images. The resulting data files are then reprocessed with a secondary computer program for the additive manufacturing machines to produce replicated models of the originals. Three case studies are documented: the reproduction of a small modern clay sculpture; a 3000-year-old Egyptian artefact; and an Ammonite fossil, all successfully recreated, using additive manufacturing technology.
AB - Photogrammetry has been used for recording objects for well over one hundred and fifty years. Modern photogrammetry, or digital image capture, can be used with the aid of a single medium range DSLR camera, to transform two-dimensional (2D) images into three-dimensional (3D) CAD spatial representations, and together with the use of additive manufacturing (AM) or 3D Printing technology, geometric representations of original cultural, historic and geological artefacts can be fabricated using a process known as Reverse Engineering. Being able to replicate such objects is of great benefit in education; if the original object cannot be handled because it is too old or delicate, then replicas can give the handler a chance to experience the size, texture and weight of rare objects. Photogrammetry equipment is discussed, the objective being simplicity of execution for eventual realisation of physical products such as the artefacts discussed. As the processing power of computers has increased and become more widely available, and with the use of computer software programs it is now possible to digitally combine multi-view photographs, taken from 360° around the object, into 3D CAD representational virtual images. The resulting data files are then reprocessed with a secondary computer program for the additive manufacturing machines to produce replicated models of the originals. Three case studies are documented: the reproduction of a small modern clay sculpture; a 3000-year-old Egyptian artefact; and an Ammonite fossil, all successfully recreated, using additive manufacturing technology.
KW - photogrammetry
KW - reverse engineering
KW - DSLR camera
KW - non-invasive reproduction
KW - 123D Catch
KW - PhotoScan
KW - Studio Pro5
KW - cultural heritage
KW - education
KW - additive manufacture
M3 - Conference paper
T2 - 25th CIRP Design Conference 2015 - Innovative Product Creation
Y2 - 2 March 2015 through 4 March 2015
ER -