title: 3D Digital Surveying and Modelling of Cave Geometry: Application to Paleolithic Rock Art.
abstract: 3D digital surveying and modelling of cave geometry represents a relevant approach for research, management and preservation of our cultural and geological legacy. In this paper, a multi-sensor approach based on a terrestrial laser scanner, a high-resolution digital camera and a total station is presented. Two emblematic caves of Paleolithic human occupation and situated in northern Spain, "Las Caldas" and "Peña de Candamo", have been chosen to put in practise this approach. As a result, an integral and multi-scalable 3D model is generated which may allow other scientists, pre-historians, geologists…, to work on two different levels, integrating different Paleolithic Art datasets: (1) a basic level based on the accurate and metric support provided by the laser scanner; and (2) a advanced level using the range and image-based modelling.
authors.affiliation: Cartographic and Land Engineering Department. University of Salamanca, Hornos Caleros, 50, 05003 Avila, Spain; E-Mails:  almuni@usal.es  (A.M.-N.);  fotod@usal.es  (J.G.-L.);  sabap@usal.es  (J.H.-P.).
authors.forename: Diego
authors.initials: D
authors.lastname: González-Aguilera
authors.forename: Angel
authors.initials: A
authors.lastname: Muñoz-Nieto
authors.forename: Javier
authors.initials: J
authors.lastname: Gómez-Lahoz
authors.forename: Jesus
authors.initials: J
authors.lastname: Herrero-Pascual
authors.forename: Gabriel
authors.initials: G
authors.lastname: Gutierrez-Alonso