3D VIRTUALIZATION OF AN UNDERGROUND SEMI-SUBMERGED CAVE SYSTEM

Abstract. Underwater caves represent the most challenging scenario for exploration, mapping and 3D modelling. In such complex environment, unsuitable to humans, highly specialized skills and expensive equipment are normally required. Technological progress and scientific innovation attempt, nowadays, to develop safer and more automatic approaches for the virtualization of these complex and not easily accessible environments, which constitute a unique natural, biological and cultural heritage. This paper presents a pilot study realised for the virtualization of 'Grotta Giusti' (Fig. 1), an underground semi-submerged cave system in central Italy. After an introduction on the virtualization process in the cultural heritage domain and a review of techniques and experiences for the virtualization of underground and submerged environments, the paper will focus on the employed virtualization techniques. In particular, the developed approach to simultaneously survey the semi-submersed areas of the cave relying on a stereo camera system and the virtualization of the virtual cave will be discussed.

[1]  Nicholas J. Weidner,et al.  Underwater Cave Mapping and Reconstruction Using Stereo Vision , 2017 .

[2]  Christopher M. Clark,et al.  Archaeology via underwater robots: Mapping and localization within maltese cistern systems , 2008, 2008 10th International Conference on Control, Automation, Robotics and Vision.

[3]  Stella Markantonatou,et al.  THE ‘ SYNTHESIS ’ VIRTUAL MUSEUM , 2016 .

[4]  Veronica Chiarini,et al.  Geomorphological and speleogenetical observations using terrestrial laser scanning and 3D photogrammetry in a gypsum cave (Emilia Romagna, N. Italy) , 2018, Geomorphology.

[5]  Pierre Grussenmeyer,et al.  DYNAMIC 3D MODELING OF A CANAL-TUNNEL USING PHOTOGRAMMETRIC ANDBATHYMETRIC DATA , 2017 .

[6]  M. Garland,et al.  Multiresolution Modeling: Survey & Future Opportunities , 1999 .

[7]  Peter Charles Woods,et al.  Workflows and Challenges Involved in Creation of Realistic Immersive Virtual Museum, Heritage, and Tourism Experiences: A Comprehensive Reference for 3D Asset Capturing , 2017, 2017 13th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS).

[8]  Eusebio Z Dizon,et al.  Underwater and maritime archaeology in the Philippines , 2003 .

[9]  Vasilis Gerovasileiou,et al.  Three-dimensional mapping of marine caves using a handheld echosounder , 2013 .

[10]  Erica Nocerino,et al.  Introduction to mobile mapping with portable systems , 2019 .

[11]  Stefano Fabbri,et al.  High-resolution 3-D mapping using terrestrial laser scanning as a tool for geomorphological and speleogenetical studies in caves: An example from the Lessini mountains (North Italy) , 2017 .

[12]  Martin Doerr,et al.  Ontology-Based Metadata Integration in the Cultural Heritage Domain , 2007, ICADL.

[13]  Fabio Menna,et al.  High accuracy low-cost videogrammetric system: an application to 6DOF estimation of ship models , 2013, Optical Metrology.

[14]  Loris Barbieri,et al.  Virtual Reality Technologies for the Exploitation of Underwater Cultural Heritage , 2018 .

[15]  Francesco Fassi,et al.  FISHEYE PHOTOGRAMMETRY:TESTS AND METHODOLOGIES FOR THE SURVEY OF NARROW SPACES , 2017 .

[16]  Ovidio Salvetti,et al.  Virtual Immersive Environments for Underwater Archaeological Exploration , 2015, IMTA.

[17]  Dieter Fritsch,et al.  Design of 3D and 4D Apps for Cultural Heritage Preservation , 2017, ITN-DCH.

[18]  Barbara Anne am Ende.  3D Mapping of Underwater Caves , 2001, IEEE Computer Graphics and Applications.

[19]  Erica Nocerino,et al.  MULTI-CAMERA SYSTEM CALIBRATION OF A LOW-COST REMOTELY OPERATED VEHICLE FOR UNDERWATER CAVE EXPLORATION , 2018 .

[20]  Pierre Drap,et al.  Underwater Multimodal Survey: Merging Optical and Acoustic Data , 2014 .

[21]  Zheng Sun,et al.  A Reality Integrated BIM for Architectural Heritage Conservation , 2017 .

[22]  L. Alessandri,et al.  PHOTOGRAMMETRIC SURVEY WITH FISHEYE LENS FOR THE CHARACTERIZATION OF THE LA SASSA CAVE , 2019, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences.

[23]  Fabio Menna,et al.  A photogrammetric approach to survey floating and semi-submerged objects , 2013, Optical Metrology.

[24]  Andreas Georgopoulos,et al.  Developing and Exploiting 3D Textured Models for a Serious Game Application , 2016, 2016 8th International Conference on Games and Virtual Worlds for Serious Applications (VS-GAMES).

[25]  Johannes Mattes,et al.  Underground fieldwork – A cultural and social history of cave cartography and surveying instruments in the 19th and at the beginning of the 20th century , 2015 .

[26]  Thomas M. Iliffe,et al.  Scientific cave diving , 2001 .

[27]  S. Lauritzen,et al.  Morphology and hydraulics of an active phreatic conduit , 1985 .

[28]  Christopher M. Clark,et al.  The Malta cistern mapping project: Underwater robot mapping and localization within ancient tunnel systems , 2010, J. Field Robotics.

[29]  Pierre Grussenmeyer,et al.  Adjustment of Sonar and Laser Acquisition Data for Building the 3D Reference Model of a Canal Tunnel † , 2015, Sensors.

[30]  Dirk Bartz,et al.  Large Model Visualization: Techniques and Applications , 2001, WSCG.

[31]  Laura Lindzey,et al.  SUNFISH®: A human-portable exploration AUV for complex 3D environments , 2018, OCEANS 2018 MTS/IEEE Charleston.

[32]  Roberto Pierdicca,et al.  A Survey of Augmented, Virtual, and Mixed Reality for Cultural Heritage , 2018, ACM Journal on Computing and Cultural Heritage.

[33]  Cristiana Achille,et al.  ACCESS AND WEB-SHARING OF 3D DIGITAL DOCUMENTATION OF ENVIRONMENTAL AND ARCHITECTURAL HERITAGE , 2019, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences.

[34]  Biswajeet Pradhan,et al.  A decade of modern cave surveying with terrestrial laser scanning: A review of sensors, method and application development , 2016 .

[35]  Pablo Rodríguez-Gonzálvez,et al.  3D SURVEYING & MODELING OF UNDERGROUND PASSAGES IN WWI FORTIFICATIONS , 2015 .

[36]  Alberto Quattrini Li,et al.  Sonar Visual Inertial SLAM of Underwater Structures , 2018, 2018 IEEE International Conference on Robotics and Automation (ICRA).

[37]  Panagiotis Petridis,et al.  Learning cultural heritage by serious games , 2014 .

[38]  Pere Ridao,et al.  Toward Autonomous Exploration in Confined Underwater Environments , 2016, J. Field Robotics.

[39]  Fabio Remondino,et al.  Investigation of indoor and outdoor performance of two portable mobile mapping systems , 2017, Optical Metrology.

[40]  Roberto Scopigno,et al.  3DHOP: 3D Heritage Online Presenter , 2015, Comput. Graph..

[41]  Giulia Sammartano,et al.  Point clouds by SLAM-based mobile mapping systems: accuracy and geometric content validation in multisensor survey and stand-alone acquisition , 2018, Applied Geomatics.

[42]  Serge Planes,et al.  Fish mitigate trophic depletion in marine cave ecosystems , 2018, Scientific Reports.

[43]  M. Bosse,et al.  THREE-DIMENSIONAL MOBILE MAPPING OF CAVES , 2014 .