Til hovedinnhold

Esten Ingar Grøtli

Seniorforsker

Esten Ingar Grøtli

Seniorforsker

Esten Ingar Grøtli
Telefon: +47 920 99 036
Avdeling: Mathematics and Cybernetics
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1687425

We consider the case of robotic bin picking of reflective steel parts, using a structured light 3D camera as a depth imaging device. In this paper, we present a new method for bin picking, based on a dual-resolution convolutional neural network trained entirely in a simulated environment. The dual-r...

Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1665083

We consider the case of robotic bin picking of reflective steel parts, using a structured light 3D camera as a depth imaging device. In this paper, we present a new method for bin picking, based on a dual-resolution convolutional neural network trained entirely in a simulated environment. The dualre...

År 2018
Type Konferansebidrag og faglig presentasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1644314

This work presents an NMPC (Nonlinear Model Predictive Control)-based algorithm for safe navigation of multi-agent dynamical systems in a variable environment with fixed or moving obstacles. The contribution lies in the construction of repulsive potential fields for the fixed and moving obstacles wh...

Forfattere Tran N Prodan I Grøtli Esten Ingar Lefevre Laurent
År 2018
Type Tidsskriftspublikasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1624012

A control technique for counter-current and co-current guidance of underactuated marine vehicles is revisited and stronger stability properties are shown. In particular, the stronger property of uniform semiglobal exponential stability is shown for the complete multiple-equilibria closed loop system...

Forfattere Caharija Walter Grøtli Esten Ingar Pettersen Kristin Ytterstad
År 2018
Type Tidsskriftspublikasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1608763

The corner cutting avoidance problem is an important but often overlooked part of motion planning strategies. Obstacle and collision avoidance constraints are usually imposed at the sampling time without regards to the intrasample behavior of the agent. Hence, it is possible for an agent to “cut the...

Forfattere Stoican Florin Prodan Ionela Grøtli Esten Ingar
År 2018
Type Tidsskriftspublikasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1521798

In this article we discuss some of the benefits of using an MPC as a mid-level controller between the path generator and the low-level joint controller of a robot system. The MPC handles rudimentary runtime constraints that are not considered during path generation. We compare two task space oriente...

Forfattere Arbo Mathias Hauan Grøtli Esten Ingar Gravdahl Jan Tommy
År 2017
Type Tidsskriftspublikasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1521632

Several design methods and principles have been proposed in the literature in order to guide the design of autonomous operations. Putting the required efforts into learning and using the methods is a daunting task, and experiences have shown that the use of methods meant to the help the design proce...

År 2017
Type Tidsskriftspublikasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1521631

Several design methods and principles have been proposed in the literature in order to guide the design of autonomous operations. Putting the required efforts into learning and using the methods is a daunting task, and experiences have shown that the use of methods meant to the help the design proce...

Forfattere Grøtli Esten Ingar Bjerkeng Magnus Christian Rundtop Per Vagia Marialena Bakkevig Fredrik Haugli Fredrik Bakkevig Transeth Aksel Andreas
År 2017
Type Konferansebidrag og faglig presentasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1521614

In this article we present a reformulation of the invariance and immersion speed observer of Astolfi et al. as applied to mechanical systems with bounded inertia matrices. This is done to explore the possibility of its practical implementation e.g. for 6 degrees-of-freedom industrial robots. The ref...

Forfattere Arbo Mathias Hauan Grøtli Esten Ingar Gravdahl Jan Tommy
År 2017
Type Konferansebidrag og faglig presentasjon
Publikasjon
https://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1521599

In this article the model predictive path following controller and the model predictive trajectory tracking con-troller are compared for a robotic manipulator. We consider both the Runge-Kutta and collocation based discretization. We show how path-following can stop at obstructions in a way trajecto...

Forfattere Arbo Mathias Hauan Grøtli Esten Ingar Gravdahl Jan Tommy
År 2017
Type Tidsskriftspublikasjon