International audienceVehicles will be in the next future equipped with V2V telecommunication means to exchange data, such as the presence of an obstacle on the road, or an emergency braking notification. Vehicles are also more and more equipped with perception systems (cameras, laser scanners, radars) that enable them to explore the immediate environment, including other vehicles. We propose in this paper an on-board optical vehicle identification system to enable telecom and perception systems to cooperate. The optical identification identifies which vehicle, in the scene captured by the perception system, is sending information via telecom
Virtual environment (VE) users often experience varying levels of Nausea, Oculomotor Discomfort, and Disorientation after VE exposure. Is there a difference in symptoms for people who end their VE exposure prematurely compared to those who, though suffering discomfort, do not? Sickness data from 29 participants who dropped out of their experimental study (dropouts) and 29 of the most severely sick of those who completed their study (finishers) were compared. Though there was insufficient evidence to conclude that the two groups differed in terms of Total Severity, dropouts experienced significantly more Nausea than did finishers. Relative subscale rankings indicate the most severe symptom for dropouts was primarily Disorientation followed by Nausea. For finishers the most severe symptom was also Disorientation but followed essentially equally by either Nausea or Oculomotor Discomfort. Ramifications of these findings are discussed.
Virtual Environment technology provides a new way to simulate real world activities. Research conducted in our program and elsewhere indicates that VE sickness is common and may affect the use of VE (Lampton, et al., 1994;Wann, 1993). Kolasinski (1995) identified three categories of factors associated with simulator sickness: individual, task, or equipment (simulator) based. We employed the Simulator Sickness Questionnaire (Kennedy, et al., 1993) to investigate the progress of symptoms over an experiment. The task required searching through VE representations of complex building interiors for targets. The SSQ scores were not related to experimental condition nor was there a meaningful relationship with individual characteristics. Analyses found sickness: 1) increasing significantly from pre-VE exposure to mid-experiment measures, 2) significantly elevated at experiment end when compared to pre-experiment measures, and 3) not significantly different from the initial scores after a recovery period. These results indicate that a large proportion of the populace adapts to and recovers from VE successfully and within relatively short time frames.
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