New metric products, movies, and 3D models from old stereopairs and their application to the in situ palaeontological site of Ambrona

Valle, José Manuel; Rodrı́guez, Ana Valdeolmillos; Martinez, Rosa Maria; Pérez, Pablo Rubén Bordón; Uceda, Sendra; Galarraga, Ane Lopetegi

doi:10.7203/sjp.32.2.17044

Cited by 1 publication

(1 citation statement)

References 12 publications

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“…On the other hand, we also count with specific studies about paleontological remains (and, in particular, on dinosaur skeletons) which provide a complementary insight with regard to the detailed features of this kind of elements. Interesting examples of the use over time of different digitization technologies for paleontological bones, including many laser scanning techniques and close range photogrammetry, can be found in the literature (Wiedemann, et al, 1999;Mallison, 2011;Falkingham, 2012;Gutiérrez-García et al, 2015;Das et al, 2017, Erolin et al, 2017, Valle et al 2017.…”

Section: State Of the Artmentioning

confidence: 99%

3d Digitization of Complex Exhibition Items (Mounted Skeletons of Dinosaurs) and Generation of Virtual Replicas for Biomechanical Studies

Miranda

Melón

Hernández

et al. 2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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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.

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