The U-ITR (Underwater Imaging Topological Radar) is a 3D laser scanner designed to operate directly in underwater environments and aimed at marine archaeological applications. A prototype is under advanced development at the ENEA Artificial Vision Laboratory (Frascati, Rome). The system is based on Amplitude Modulation (AM) rangefinding. This enables one to acquire in a single scan both range (distance) and reflectivity (imaging) information, and produce accurate, photorealistic, three-dimensional (3D) images. Preliminary results show that using a blue (405 nm), continuous-wave AM laser probe at a sufficiently high modulation frequency significantly reduces the optical noise due to water backscattering, resulting in better images and more accurate phase-i.e. distance-determination. Further improvements can be obtained by using conveniently arranged polarizing filters-yet at the cost of a loss of signal. © 2011 Taylor & Francis Group, London.
|Publication status||Published - 2011|
|Event||International Conference on Lasers in Conservation of Artworks, LACONA VIII - , Romania|
Duration: 1 Jan 2011 → …
|Conference||International Conference on Lasers in Conservation of Artworks, LACONA VIII|
|Period||1/1/11 → …|
All Science Journal Classification (ASJC) codes
Ricci, R., De Dominicis, L., De Collibus, M. F., Fornetti, G., Guarneri, M., Nuvoli, M., & Francucci, M. (2011). U-ITR: A 3D laser scanner prototype aimed at underwater archaeology applications. Paper presented at International Conference on Lasers in Conservation of Artworks, LACONA VIII, Romania.