Accuracy of Alignment Procedures Used for the Creation of 3D Models

Badillo, Pablo D.; Parfenov, V. A.

doi:10.1109/elconrus54750.2022.9755830

Cited by 2 publications

(1 citation statement)

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“…As was described before, the first problem that must be faced is the lack of reference geometry due to the shape characteristics of the object. This issue is not only difficult to solve for the expert doing what is usually called as rough alignment, in other words, arrange approximately the different parts using reference points in the surface, but also it presents complications for a successful fine alignment, usually done by algorithms like ICP [7], [8] which can be misguided by the lack of geometrically important features to use as reference for the calculations, leading to misplacements between the different scans. Also, noise reduction algorithms should be used very carefully in these objects, as they may remove important subtle details that are present in nearly flat surfaces, like inscriptions and carvings.…”

Section: Problems Of the Creation Of 3d Models Of Flat Surfacesmentioning

confidence: 99%

3D scanning in Cultural Heritage: model creation and digital restoration of the tombstone of the bishop Vasilije Petrović (Negosh) in Saint Petersburg

Badillo,

Parfenov,

Raspopović

et al. 2024

J. Phys.: Conf. Ser.

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3D laser and optical scanning techniques are widely employed in Cultural Heritage preservation for documenting pieces of different sizes and shapes. However, due to limitations of the methods available today, the results obtained vary according to different characteristics of the object under study. External surfaces showing very smooth features make the capturing process and the posterior processing a more elaborate task, requiring special attention and additional retouching to improve the final 3D model. Tombstones are a typical example of this type of objects, combining both flat external contours and refined outlines. In this work the procedure of creation of the digital model of the tombstone of the bishop Vasilije Petrović (Negosh) is described, a piece of art which combines both technical and historical importance. Post-processing steps required involved different software (Geomagic Design X, ZBrush, Adobe Photoshop) for surface correction and cleaning, details and photorealistic texture improvements and lost material restoration.

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Section: Problems Of the Creation Of 3d Models Of Flat Surfacesmentioning

confidence: 99%