Searched for: author:"Correia Grácio, B.J."
(1 - 14 of 14)
document
Bos, J.E. (author), Correia Grácio, B.J. (author)
BACKGROUND: Linear acceleration generally gives rise to translation perception. Centripetal acceleration during centrifugation, however, has never been reported giving rise to a radial, inward translation perception. OBJECTIVE: To study whether centrifugation can induce a radial translation perception in the absence of visual cues. METHODS: To...
article 2015
document
Correia Grácio, B.J. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In the field of motion-based simulation, it was found that a visual amplitude equal to the inertial amplitude does not always provide the best perceived match between visual and inertial motion. This result is thought to be caused by the "quality" of the motion cues delivered by the simulator motion and visual systems. This paper studies how...
article 2014
document
Berthoz, A. (author), Bles, W. (author), Bülthoff, H.H. (author), Correia Grácio, B.J. (author), Feenstra, P. (author), Filliard, N. (author), Hühne, R. (author), Kemeny, A. (author), Mayrhofer, M. (author), Mulder, M. (author), Nusseck, H.G. (author), Pretto, P. (author), Reymond, G. (author), Schlüsselberger, R. (author), Schwandtner, J. (author), Teufel, H. (author), Vailleau, B. (author), van Paassen, M.M.R. (author), Vidal, M. (author), Wentink, M. (author)
Advanced driving simulators aim at rendering the motion of a vehicle with maximum fidelity, which requires increased mechanical travel, size, and cost of the system. Motion cueing algorithms reduce the motion envelope by taking advantage of limitations in human motion perception, and the most commonly employed method is just to scale down the...
article 2013
document
Correia Grácio, B.J. (author), Valente Pais, A.R. (author), van Paassen, M.M. (author), Mulder, M. (author)
article 2013
document
Correia Grácio, B.J. (author), de Winkel, K.N. (author), Groen, E.L. (author), Wentink, M. (author), Bos, J.E. (author)
Without visual feedback, humans perceive tilt when experiencing a sustained linear acceleration. This tilt illusion is commonly referred to as the somatogravic illusion. Although the physiological basis of the illusion seems to be well understood, the dynamic behavior is still subject to discussion. In this study, the dynamic behavior of the...
article 2013
document
Correia Grácio, B.J. (author), Wentink, M. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In motion simulation, motion cueing algorithms are used to transform vehicle inertial cues into inertial cues that are within the simulator physical limits. Most motion cueing algorithms aim to minimize the error between these vehicle inertial cues and those generated by the simulator. Although this is one way to approach the problem, one can...
conference paper 2012
document
Correia Grácio, B.J. (author), Wentink, M. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In the field of motion simulation it was found that a visual amplitude equal to the inertial amplitude does not always provide the best perceived match between visual and inertial motion. This result is thought to be caused by the “quality” of the motion cues delivered by the simulator motion and visual systems. This paper studies how different...
conference paper 2012
document
Correia Grácio, B.J. (author), Bos, J.E. (author)
Humans are able to estimate the vertical direction of an Earth fixed reference frame, which estimate is known as the subjective vertical (SV). To identify the SV, a distinction must be made between accelerations due to self-motion and gravity. Previous studies on this topic measured the SV using a variety of methods possibly affecting the...
article 2012
document
Correia Grácio, B.J. (author), Valente Pais, A.R. (author), van Paassen, M.M. (author), Mulder, M. (author), Kelly, L.C. (author), Houck, J.A. (author)
In motion simulation the inertial information generated by the motion platform is most of the times different from the visual information in the simulator displays. This occurs due to the physical limits of the motion platform. However, for small motions that are within the physical limits of the motion platform, one-to-one motion, i.e. visual...
conference paper 2011
document
Correia Grácio, B.J. (author), van Paassen, M.M. (author), Mulder, M. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)
Generally, motion simulators present motion and visual cues different from each other due to the physical limitations of the motion platform. Nonetheless, high fidelity motion platforms are capable of simulating some maneuvers one-to-one, i.e., motion cues equal to visual cues. However, one-to-one simulation is normally not preferred by subjects...
conference paper 2010
document
Feenstra, P. (author), van der Horst, A.R.A. (author), Correia Grácio, B.J. (author), Wentink, M. (author)
The goal of the presented study was to explore how simulator motion cueing affects the driver’s control performance of a car. We looked at steering behavior as a measure of control performance. The experimental task was a slalom maneuver where the car velocity was limited to 70 km/h. Subjective and objective variables were measured. This paper...
conference paper 2010
document
de Winkel, K.N. (author), Correia Grácio, B.J. (author), Groen, E.L. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
Knowledge of human motion perception can be applied in the optimization of motion cueing algorithms. In the past it has been shown that some discrepancies between the amplitude or phase of a visual and inertial cue go unnoticed. These acceptable discrepancies are referred to as coherence zones. In the present experiment we investigate whether a...
conference paper 2010
document
Correia Grácio, B.J. (author), Wentink, M. (author), Groen, E. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
In centrifuge simulators pilots experience the G-forces and fast G-onsets encountered in the real fighter aircraft. The motion cueing principle that drives these simulators is based on creating G-forces by increasing the centripetal force of the centrifuge through a rotation of the simulator arm. The centrifuge usually spins at a constant 1.4 G...
conference paper 2009
document
Wentink, M. (author), Correia Grácio, B.J. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
In the real world in which we move around, inertial and visual motion are usually equal; what you see is what you feel. In a simulator, however, this is usually not the case. On the contrary, due to the relatively small motion space of even the largest simulators, the inertial motion cues must be filtered and scaled down considerably. Typically,...
conference paper 2009
Searched for: author:"Correia Grácio, B.J."
(1 - 14 of 14)