Diego Cesar
SENAI
6 Papers
5 Citations
Diego Cesar is an academic researcher from SENAI. The author has contributed to research in topics: Intervention AUV & Remotely operated underwater vehicle. The author has an hindex of 4, co-authored 6 publications.
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Papers
FlatFish - a compact subsea-resident inspection AUV
Jan Albiez,Sylvain Joyeux,Christopher Gaudig,Jens Hilljegerdes,Sven Kroffke,Christian Schoo,Sascha Arnold,Geovane Mimoso,Pedro Xavier Alcantara,Rafael Saback,Joao Britto,Diego Cesar,Gustavo De Almeida Neves,Thomio Watanabe,Patrick Merz Paranhos,Marco Reis,Frank Kirchnery +16 more
- 01 Oct 2015
TL;DR: The FlatFish project as discussed by the authors is an initiative of BG Group Brazil and the Brazilian Institute of Robotics in Salvador and aims at developing a subsea-resident AUV which can inspect the infrastructure at an oil and gas site on demand.
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An evaluation of artificial fiducial markers in underwater environments
Diego Cesar,Christopher Gaudig,Martin Fritsche,Marco Reis,Frank Kirchner +4 more
- 18 May 2015
TL;DR: In this article, an evaluation of artificial fiducial markers in underwater environments is presented, and the results show that the AprilTags library outperforms the other candidates for almost all tested criteria, but it also presents the slowest performance.
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Model identification of an unmanned underwater vehicle via an adaptive technique and artificial fiducial markers
Joao Britto,Diego Cesar,Rafael Saback,Sascha Arnold,Christopher Gaudig,Jan Albiez +5 more
- 01 Oct 2015
TL;DR: In this paper, the authors presented and evaluated a method to identify the motion model parameters of a UAV using the UAV's pose estimation, the on-board cameras, fiducial markers and an adaptive method to combine the resulting data.
8
Fault-tolerant control allocation technique based on explicit optimization applied to an autonomous underwater vehicle
Rafael Saback,Diego Cesar,Sascha Arnold,Herman Augusto Lepikson,Tito L.M. Santos,Jan Albiez +5 more
- 01 Sep 2016
TL;DR: In this article, a fault-tolerant control allocation technique is applied to FlatFish, an autonomous underwater inspection vehicle, based on multi-parametric programming and it is able to handle thruster failures and saturation.
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Repeated close-distance visual inspections with an AUV
Jan Albiez,Diego Cesar,Christopher Gaudig,Sascha Arnold,Romulo Cerqueira,Tiago Trocoli,Geovane Mimoso,Rafael Saback,Gustavo De Almeida Neves +8 more
- 01 Sep 2016
TL;DR: In this article, the authors introduce the navigation problem in detail and the methods used for the inspection, and present the initial tests with the FlatFish AUV applying the new approach to address this problem.
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