An Automatic Image-Based Modelling Method Applied to Forensic Infography |
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| Authors: | Sandra Zancajo-Blazquez Diego Gonzalez-Aguilera Higinio Gonzalez-Jorge David Hernandez-Lopez |
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| Affiliation: | 1. Department of Cartographic and Land Engineering, University of Salamanca, Polytechnic School of Avila, Hornos Caleros, 50, 05003, Avila, Spain.; 2. Department of Natural Resources and Environmental Engineering, University of Vigo, Vigo, Spain.; 3. Institute for Regional Development (IDR), University of Castilla La Mancha, Albacete, Spain.; University of Nebraska Medical Center, UNITED STATES, |
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| Abstract: | This paper presents a new method based on 3D reconstruction from images that demonstrates the utility and integration of close-range photogrammetry and computer vision as an efficient alternative to modelling complex objects and scenarios of forensic infography. The results obtained confirm the validity of the method compared to other existing alternatives as it guarantees the following: (i) flexibility, permitting work with any type of camera (calibrated and non-calibrated, smartphone or tablet) and image (visible, infrared, thermal, etc.); (ii) automation, allowing the reconstruction of three-dimensional scenarios in the absence of manual intervention, and (iii) high quality results, sometimes providing higher resolution than modern laser scanning systems. As a result, each ocular inspection of a crime scene with any camera performed by the scientific police can be transformed into a scaled 3d model. |
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