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Geometric accuracy of the NewTom 9000 Cone Beam CT

Dentomaxillofacial Radiology, 2005
To determine the geometric accuracy of digital volume tomograms to assess their usability for implant planning.A measuring object with 216 measuring points, whose geometry is exactly known, is X-rayed with a NewTom 9000 cone beam scanner; thereafter the geometry of the volume tomogram of the object is compared with the original body.Considering all ...
R Marmulla, J Mühling, S Hassfeld
exaly   +3 more sources

Geometric Accuracy Evaluation of GF-7 Image

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
We selected a scene of “GF-7” satellite multispectral rear-view camera image in Chengdu, Sichuan Province of China. At the same time, we take 26 high-precision GPS sampling points evenly distributed in the region as control points, and make statistics on the geometric positioning accuracy of images.
Guoming Li, Guoqing Li, Tianqing Wang
openaire   +1 more source

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