Volume XLII-2/W15
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W15, 1015–1021, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W15-1015-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W15, 1015–1021, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W15-1015-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

  26 Aug 2019

26 Aug 2019

3D DIGITIZATION OF COMPLEX EXHIBITION ITEMS (MOUNTED SKELETONS OF DINOSAURS) AND GENERATION OF VIRTUAL REPLICAS FOR BIOMECHANICAL STUDIES

Á. Rodríguez Miranda1, J. M. Valle Melón1, A. Torices2, R. Lostado3, P. Navarro2, G. Elorriaga Agirre1, J. Korro Bañuelos1, and A. Zornoza-Indart4 Á. Rodríguez Miranda et al.
  • 1Laboratory for the Geometric Documentation of Heritage (GPAC - Built Heritage Research Group), University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
  • 2Cátedra de Paleontología, University of La Rioja, Spain
  • 3Department of Mechanical Engineering, University of La Rioja, Spain
  • 4Department of Painting. Faculty of Fine Arts, University of the Basque Country (UPV/EHU), Leioa, Spain

Keywords: 3D digitization, dinosaur bones, biomechanical analysis

Abstract. The work presented here is part of a broader study concerning the biomechanical analysis of the movement of dinosaurs, which will be done by the finite element method (FEM). For this aim, it will be necessary to count on virtual models of the walking system (that is to say, the foot, leg, etc.) and the substrate on which the dinosaur moved. Both kinds of models can be approximately inferred from fossil remains: bones for the former and ichnites (fossil footprints) for the latter. Obviously, there are important challenges in these models, let us see, for example, that a group of fossil bones (probably incomplete and deteriorate) is very far from a walking animal with not only the bones and the articulations but also with flesh, tendons, skin, claws and so on.

In any case, fossil bones are the only material we have to start modelling. Therefore, the first step will be their 3D digitization. As the expected use of the 3D models defines, the technical characteristics that these models need to comply with, the manuscript will reflect on the qualities that the models for biomechanical purposes need, paying attention to the completeness, geometric accuracy and resolution. Moreover, a practical case is presented with a comparison of a scanning technology (fringe projection) and close range photogrammetry in order to model a 2 meters tall leg of a specimen of Edmontosaurus.