Shining 3D EinScan Pro, Руководство пользователя

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SHINING 3D - EinScan-Pro series - User Manual - June 2019 63
At least 4 markers captured previously need to be seen by the scanner in each
current scanning frame to be aligned. If not, “Track Lost” will be displayed.
When scanning a large object, Marker Alignment is the best mode at mitigating the
cumulative errors caused by large amounts of data. This results in a higher global
accuracy of the complete scanned data and is the reason we recommend this
alignment mode for large objects.

Feature Alignment
The data currently captured is “best fit” and aligned to the previously captured data
according to the geometric features of the object. “Track lost” will be displayed if
there is not enough common area captured in neighboring scans or the scanned area
has few geometric features to allow for the alignment. Rich features on the object
are required for this mode.

Hybrid Alignment (Pro+ or R2 add-on)
The software can switch between feature and marker alignment automatically during
scanning according to whether the surface of the scanned object has markers or not.
So you can put markers only on surfaces with little geometry. There is no need to
stick markers all over the object. (See the example below)
For some parts which are difficult for Feature Alignment, a reminder will show up to
suggest you stick markers on the area with limited geometric features.
Example of use of hybrid alignment

GMF (Pro+ or R2 add-on)
With Markers and Mixed alignment, you may click browse to import a previously
created Global Marker File (GMF) as .ASC, .TCT or .P3.
Browse to load a GMF