A novel high accuracy 3D scanning device for rock-art sites
We are currently developing a novel 3D scanning device for rock-art. Within the European project 3D-Pitoti, this scanner shall be used to acquire 3D structure and radiometric surface properties of ancient rock-art sites in Valcamonica. Overall design goals include high spatial accuracy and precisi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-06-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-5/285/2014/isprsarchives-XL-5-285-2014.pdf |
| Summary: | We are currently developing a novel 3D scanning device for rock-art. Within the European project 3D-Pitoti, this scanner shall be used
to acquire 3D structure and radiometric surface properties of ancient rock-art sites in Valcamonica. Overall design goals include high
spatial accuracy and precision, as well as radiometric quality beyond phototexture. This paper is devoted to the geometric measurement
principle of the new scanner. We present a novel scanning scheme based on various constraints to Structure from Motion, that guarantees
high accuracy of the resulting scans by combining tachymeter-based tracking of the scanner, stereo, and structure-from-motion. This
method provides scale information (by calibrated stereo), and does not require ground control points, because outside-in tracking avoids
the typical issues of drift in structure-from-motion. The system is designed for flexibility, high throughput, approx. 0.1 mm precision,
and an overall accuracy of the reconstructed 3D structure that conforms with the specifications of the tachymeter. |
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| ISSN: | 1682-1750 2194-9034 |