Optic flow regulation: the key to aircraft automatic guidance

F Ruffier, N Franceschini - Robotics and Autonomous Systems, 2005 - Elsevier
We have developed a visually based autopilot which is able to make an air vehicle
automatically take off, cruise and land, while reacting appropriately to wind disturbances …

A bio-inspired flying robot sheds light on insect piloting abilities

N Franceschini, F Ruffier, J Serres - Current Biology, 2007 - cell.com
When insects are flying forward, the image of the ground sweeps backward across their
ventral viewfield and forms an" optic flow," which depends on both the groundspeed and the …

Visual guidance based on optic flow: a biorobotic approach

N Franceschini - Journal of Physiology-Paris, 2004 - Elsevier
This paper addresses some basic questions as to how vision links up with action and serves
to guide locomotion in both biological and artificial creatures. The thorough knowledge …

Bio-inspired optical flow circuits for the visual guidance of micro air vehicles

F Ruffier, S Viollet, S Amic… - Proceedings of the 2003 …, 2003 - ieeexplore.ieee.org
In the framework of our research on biologically inspired microrobotics, we have developed
a visually based autopilot for micro air vehicles (MAV), which we have called OCTAVE …

Small brains, smart machines: from fly vision to robot vision and back again

N Franceschini - Proceedings of the IEEE, 2014 - ieeexplore.ieee.org
Neurobiological and neuroethological findings on insects can be used to design and
construct small robots controlling their navigation on the basis of bio-inspired visual …

Visually guided micro-aerial vehicle: automatic take off, terrain following, landing and wind reaction

F Ruffier, N Franceschini - IEEE International Conference on …, 2004 - ieeexplore.ieee.org
We have developed a visually based autopilot which is able to make a micro air vehicle
(MAV) automatically take off, cruise and land, while reacting adequately to wind …

Flying over uneven moving terrain based on optic-flow cues without any need for reference frames or accelerometers

F Expert, F Ruffier - Bioinspiration & biomimetics, 2015 - iopscience.iop.org
Two bio-inspired guidance principles involving no reference frame are presented here and
were implemented in a rotorcraft, which was equipped with panoramic optic flow (OF) …

Honeybees' speed depends on dorsal as well as lateral, ventral and frontal optic flows

G Portelli, F Ruffier, FL Roubieu, N Franceschini - PloS one, 2011 - journals.plos.org
Flying insects use the optic flow to navigate safely in unfamiliar environments, especially by
adjusting their speed and their clearance from surrounding objects. It has not yet been …

Honeybees change their height to restore their optic flow

G Portelli, F Ruffier, N Franceschini - Journal of Comparative Physiology A, 2010 - Springer
To further elucidate the mechanisms underlying insects' height and speed control, we
trained outdoor honeybees to fly along a high-roofed tunnel, part of which was equipped …

Plenoptic cameras in real-time robotics

F Dong, SH Ieng, X Savatier… - … Journal of Robotics …, 2013 - journals.sagepub.com
Real-time vision-based navigation is a difficult task largely due to the limited optical
properties of single cameras that are usually mounted on robots. Multiple camera systems …