Photogrammetry: How to Create Low-cost, Realistic, and Easy to Operate 3D Models for Medical Teaching and Diagnosis

Journal: Advances in Medicine and Engineering Interdisciplinary Research DOI: 10.32629/ameir.v1i3.1292

Alonso Saharahui de Jesús-Luis1, Sergio Ordóñez-Velázquez1, Diego Pineda-Martínez1, Brian Brenes-Solano2, Jessica González-Fernández2

1. Department of Amphitheatre, Faculty of Medicine, UNAM, Mexico City, Mexico.
2. Department of Anatomy, University of Costa Rica, Costa Rica.

Abstract

Introduction: Photogrammetry in the field of science and technology is responsible for the acquisition, accumulation and transformation of information about the shape, movement and deformation of an object by means of a beam of light. It is currently adopted by doctors for the reproduction of anatomical structures, as well as planning of surgical procedures and as a diagnostic tool. Objective: To provide a simple and low-cost method that allows to create three-dimensional models of realistic characteristics without the need of specific conditions for their use and reproduction. In addition, they are implemented as a combination of learning and diagnostic tools. Method: For the creation of the three-dimensional model, it was necessary to submit it to a rendering process with the software PhotoScan, Regard3D and 3DF Zaphyr. This procedure took photographs of a real model and converted them into information points that were compiled to create a high-quality three-dimensional model; since these programs were created for the realization and survey of geographic maps, it allowed us to preserve the texture and reliefs of each structure, with realistic characteristics in each model. Results: The final result was a three-dimensional model that could be manipulated in 360°, and thanks to its plasticity, it could be edited in any editing programme. Conclusion: Photogrammetry is a simple and low-cost method for creating three-dimensional models of realistic features that do not require great specifications for their reproduction, making them very plastic in their use and handling.

Keywords

photogrammetry; 3D models; biologic material; anatomic pieces; medical education

Funding

To the forensic technical staff of the Amphitheatre Department of the Faculty of Medicine of the National Autonomous University of Mexico (UNAM) for their support in the handling and conservation of the biological material.

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Copyright © 2023 Alonso Saharahui de Jesús-Luis, Sergio Ordóñez-Velázquez, Diego Pineda-Martínez, Brian Brenes-Solano, Jessica González-Fernández

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