Evangelos Boukas

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The congregation of crowd undoubtedly constitutes an important risk factor, which may endanger the safety of the gathered people. The solution reported against this significant threat to citizens safety is to consider careful planning and measures. Thereupon, in this paper, we address the crowd evacuation problem by suggesting an innovative technological(More)
Vision-based robotic applications exhibit increased computational complexity. This problem becomes even more important regarding mission critical application domains. The SPARTAN project focuses in the tight and optimal implementation of computer vision algorithms targeting to rover navigation for space applications. For evaluation purposes, these(More)
Ioannis Kostavelis Laboratory of Robotics and Automation, Production and Management Engineering Dept., Democritus University of Thrace, Greece e-mail: gkostave@pme.duth.gr Lazaros Nalpantidis Robotics, Vision and Machine Intelligence Lab., Dept. of Mechanical and Manufacturing Engineering, Aalborg University Copenhagen, Denmark e-mail: lanalpa@m-tech.aau.dk(More)
The “SPAring Robotics Technologies for Autonomous Navigation” (SPARTAN) activity of the European Space Agency (ESA) aims to develop an efficient, low-cost and accurate vision system for the future Martian exploratory rovers. The interest on vision systems for space robots has been steadily growing during the last years. The SPARTAN system(More)
Space exploratory rovers do well in autonomous or composite semi-autonomous exploration of extraterrestrial surfaces, yet their localization relies on the particular spot they had landed, rather than being universal, i.e. based on the absolute coordinate system of the explored planet. The idea underlaying the work presented in this paper is the transition(More)
Mobile robots dedicated in post-disaster missions should be capable of moving arbitrarily in unknown cluttered environments so as to accomplish their assigned security task. The paper in hand describes such an agent equipped with collision risk assessment capabilities, while it is able to trace an obstacle-free path in the scene as well. The robot exploits(More)
Accurate global localization of space exploratory rovers is of high importance to the future extraterrestrial missions. In particular, the Mars Sample Return mission (MSR) needs precise localization techniques for the Sample Fetching Rover (SFR) to collect a previously drilled cache of soil. Moreover, exact positioning is sine qua non for a successful(More)