I3D, un sistema de inspección industrial 3D sin contacto

Boletín Informativo del Instituto Tecnológico de Informática, dedicado a las Tecnologías de la información y las ComunicacionesTrabajo parcialmente subvencionado por el Instituto de la Pequeña y Mediana Industria de la Generalitat Valenciana (IMPIVA) y la Unión Europea por medio del Fondo Europeo de Desarrollo Regional (FEDER) en el marco del Programa I+D para Institutos Tecnológicos de la red IMPIVA (2010: IMIDIC-2010/194), (2009: IMIDIC-2009/197), (2008: IMIDIC-2008/133).Salvador Igual, I.; Carrión Robles, D.; Perez-Cortes, J.; Sáez Barona, S. (2011). I3D, un sistema de inspección industrial 3D sin contacto. Actualidad TIC. (17):19-20. http://hdl.handle.net/10251/46126S19201

Simple and precise multi-view camera calibration for 3D reconstruction

[EN] A precise calibration in multi-view camera environments allows to perform accurate 3D object reconstruction, precise tracking of objects and accurate pose estimation. Those techniques are of high value in the industry today in fields as quality control or automation. In the present work, an improvement of a simple existing multi-view camera calibration method is presented. The improved method employs a specially developed reference token to overcome some issues in the original algorithm. We prove that the new method overcomes those problems thus attaining a higher accuracy while keeping the process simple and the implementation costs low. This last aspects makes the method interesting for the industry but specially suitable for SMEs typical in traditional sectors.Pérez Jiménez, AJ.; Perez-Cortes, J.; Guardiola Garcia, JL. (2020). Simple and precise multi-view camera calibration for 3D reconstruction. Computers in Industry. 123:1-7. https://doi.org/10.1016/j.compind.2020.103256S17123Tsai, R. (1987). A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses. IEEE Journal on Robotics and Automation, 3(4), 323-344. doi:10.1109/jra.1987.1087109Perez-Cortes, J.-C., Perez, A., Saez-Barona, S., Guardiola, J.-L., & Salvador, I. (2018). A System for In-Line 3D Inspection without Hidden Surfaces. Sensors, 18(9), 2993. doi:10.3390/s18092993Gracia, L., Saez-Barona, S., Carrion, D., Salvador, I., & Perez-Cortes, J.-C. (2010). A System for Real-Time Multi-View 3D Reconstruction. 2010 Workshops on Database and Expert Systems Applications. doi:10.1109/dexa.2010.59Bi, Z. M., & Wang, L. (2010). Advances in 3D data acquisition and processing for industrial applications. Robotics and Computer-Integrated Manufacturing, 26(5), 403-413. doi:10.1016/j.rcim.2010.03.003Penne, R., Ribbens, B., & Roios, P. (2018). An Exact Robust Method to Localize a Known Sphere by Means of One Image. International Journal of Computer Vision, 127(8), 1012-1024. doi:10.1007/s11263-018-1139-6Zhang, Z. (2000). A flexible new technique for camera calibration. IEEE Transactions on Pattern Analysis and Machine Intelligence, 22(11), 1330-1334. doi:10.1109/34.88871