δείτε την πρωτότυπη σελίδα τεκμηρίου στον ιστότοπο του αποθετηρίου του φορέα για περισσότερες πληροφορίες και για να δείτε όλα τα ψηφιακά αρχεία του τεκμηρίου*
Laser scanning and automatic multi-image texturing of surface projections
(EN)
Terrestrial laser scanning has now become a standard tool for 3D surface modeling. In order to exploit such fully 3D data in texturemapping
or for the creation of large-scale ‘true orthos’ suitable software is needed, particularly to allow handling surface self-occlusions
and image occlusions, as well as multi-image texture interpolation. The authors have presented such an automatic approach for
creating orthoimages and perspective views, based on fully 3D models from laser scanning. All surface points visible in the direction
of projection are first identified, and then texture from all images which view each particular surface point is blended. Means for
automatically eliminating colour outliers from individual images, especially near image occlusion borders, are also provided. In this
contribution, the algorithm is evaluated using image sets with large variations in image scale and unconventional imaging configurations.
The presented results indicate that this approach, which involves a cooperation of photogrammetry with laser scanning for the
automatic multi-view synthesis of textured projections, performs quite satisfactorily also under demanding circumstances.
(EN)
*Η εύρυθμη και αδιάλειπτη λειτουργία των διαδικτυακών διευθύνσεων των συλλογών (ψηφιακό αρχείο, καρτέλα τεκμηρίου στο αποθετήριο) είναι αποκλειστική ευθύνη των αντίστοιχων Φορέων περιεχομένου.
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