Visual Simultaneous Localization and Mapping (VSLAM) methods applied to indoor 3D topographical and radiological mapping in real-timeFelix Hautot, Philippe Dubart, Charles-Olivier Bacri, Benjamin Chagneau and Roger Abou-KhalilEPJ Nuclear Sci. Technol., 3 (2017) 15DOI: https://doi.org/10.1051/epjn/2017010