Recent improvements in photometric stereo (PS) are shown to remove the major limitations of this low-cost 3D recording technique. In particular, there are significant improvements in lighting constraints, processing time and presence of deformation in reconstructed surfaces, allowing for fast and accurate restoration of shape and color information. The shooting technique is sufficiently easy to make PS ideal for ancient rock art, which is generally encountered in difficult to access sites, where many of the rock engravings to survey are often placed in a narrow space. This paper focuses on the Sardinia neolithic tombs known as Domus de Janas, as the offer an opportunity to demonstrate the applicability of PS to general rock art

Recent improvements in photometric stereo for rock art 3D imaging

RODRIGUEZ, GIUSEPPE;TANDA, GIUSEPPA;VANZI, MASSIMO
2015-01-01

Abstract

Recent improvements in photometric stereo (PS) are shown to remove the major limitations of this low-cost 3D recording technique. In particular, there are significant improvements in lighting constraints, processing time and presence of deformation in reconstructed surfaces, allowing for fast and accurate restoration of shape and color information. The shooting technique is sufficiently easy to make PS ideal for ancient rock art, which is generally encountered in difficult to access sites, where many of the rock engravings to survey are often placed in a narrow space. This paper focuses on the Sardinia neolithic tombs known as Domus de Janas, as the offer an opportunity to demonstrate the applicability of PS to general rock art
2015
Photometric stereo; shape from shading; Domus de Janas; Sardinia neolithic tombs
File in questo prodotto:
File Dimensione Formato  
cambridge15.pdf

Solo gestori archivio

Tipologia: versione editoriale (VoR)
Dimensione 2.89 MB
Formato Adobe PDF
2.89 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/110838
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? ND
social impact