id
	12083
Url
	https://chloe.cnr.it/s/BiDiAr/item/12083
Resource template
	Conference Paper
Resource class
	fabio:ConferencePaper
Title
	Nuovi sviluppi nelle tecniche di stereofotometria 3D di incisioni e rilievi. Applicazioni nella tomba XV di Sos Furrighesos, Sardegna
Creator
	Mannu, Carla
	Tanda, Giuseppa
	Vanzi, Massimo
	Rodriguez, Giuseppe
Publisher
	CCSP
Date
	2015
Language
	ita
Abstract
	Here is proposed a Photogrammetric technique known since a long time as Photometric Stereo, as cheap and easy technique for taking 3Ds of rock art engraving and relieves. Unlike stereoscopic or monoscopic photogrammetry, this technique uses a standard reflex camera fixed in the same point of view for each shot, under different lighting direction. The image processing gives back three images: the x and y gradients and the “albedo”, which is the surface real color without any shading interference. The 3D surface is recreated from the gradient maps, with good results comparables with the ones taken from the laser scanner, and a very natural appaearance thanks to the Albedo recovery color. The exceptional acquisition aptitude and preservation of the 3D information even under non-ideal conditions and arduous locations is the crux of this technique This presentation is focused on the considerables improvements recently achieved in application modes, execution times and quality results. As example, here are presented the results in XV grave of the Sos Furrighesos’ necropolis in Sardinia.
Is Part Of
	Prospect for the Prehistoric Art Research, Proceedings of XXVI Valcamonica Symposium 2015
Spatial Coverage
	Capo di Ponte
Cited by
	11056
Editor
	Troletti, Federico
Pages
	285-288.
Homepage
	https://www.zotero.org/groups/5293298/bidiar/items/CJFFS9ML/item-list

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