On-board velocity estimation and closed-loop control of a quadrotor UAV based on optical flow. - Volker Grabe; Heinrich H. Bülthoff; Paolo Robuffo Giordano (ICRA, 2012)

Robust optical-flow based self-motion estimation for a quadrotor UAV. - Volker Grabe; Heinrich H. Bülthoff; Paolo Robuffo Giordano (IROS, 2012)

Modeling and Control of UAV Bearing Formations with Bilateral High-level Steering. - Antonio Franchi; Carlo Masone; Volker Grabe; Markus Ryll; Heinrich H. Bülthoff; Paolo Robuffo Giordano (Int. J. Robotics Res., 2012)

The TeleKyb framework for a modular and extendible ROS-based quadrotor control. - Volker Grabe; Martin Riedel; Heinrich H. Bülthoff; Paolo Robuffo Giordano; Antonio Franchi (ECMR, 2013)

A comparison of scale estimation schemes for a quadrotor UAV based on optical flow and IMU measurements. - Volker Grabe; Heinrich H. Bülthoff; Paolo Robuffo Giordano (IROS, 2013)

Nonlinear ego-motion estimation from optical flow for online control of a quadrotor UAV. - Volker Grabe; Heinrich H. Bülthoff; Davide Scaramuzza 001; Paolo Robuffo Giordano (Int. J. Robotics Res., 2015)

Long distance visual ground-based signaling for unmanned aerial vehicles. - Volker Grabe; Stephen T. Nuske (IROS, 2016)