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We present an extension to the Reciprocal Velocity Obstacles (RVO) approach to multi-robot collision avoidance with the aim of alleviating the problem of congestion caused by symmetrical situations in dense conditions. We show that in a resource transportation task RVO robots are unable to make progress due to crowds of robots with opposing navigation goals(More)
We propose a novel method for non-uniform terrain coverage using Unmanned aerial vehicles (UAVs). The existing methods for coverage path planning consider a uniformly interesting target area and hence all the regions are covered with high resolution. However in many real world applications items of interest are not uniformly distributed but form patches of(More)
We present a path planning method for MAVs with vision-only MonoSLAM that generates safe paths to a goal according to the information richness of the environment. The planner runs on top of monocular SLAM and uses the available information about structure of the environment and features visibility to find trajectories that maintain visual contact with(More)
We consider a group of autonomous robots which perform the classical task of transporting resources from a source to home. The robots use ant-like emergent trail following to navigate between home and source. When trails lie close together , spatial interference between robots navigating in opposite directions reduces overall system performance. This paper(More)
Area coverage is one of the compelling applications of UAVs. The existing methods for coverage path planning assume a uniformly interesting target area. However in many real world applications items of interest are not uniformly distributed but form clusters. Here it can be advantageous to only sample regions of interest while skipping uninteresting(More)
We present a multi-modal multi-robot interaction whereby a user can identify an individual or a group of robots using haptic stimuli, and name them using a voice command (e.g."<i>You two are green</i>"). Subsequent commands can be addressed to the same robot(s) by name (e.g. "<i>Green! Take off</i>!"). We demonstrate this as part of a real-world integrated(More)
We consider the classical task of transporting resources from source to home by a group of autonomous robots. The robots use ant-like trail following to navigate between home and source. This paper studies the effect on global performance of changing the field of view of each robot's trail-following sensor. It is shown that, under certain conditions, a(More)
We present the first demonstration of establishing mutual attention between an outdoor UAV in autonomous normal flight and an uninstrumented human user. We use the familiar periodic waving gesture as a signal to attract the UAV's attention. The UAV can discriminate this gesture from human walking and running that appears similarly periodic. Once a signaling(More)
In the context of large-population multi-objective robot foraging , we present a novel ant-inspired trail-following algorithm that is able to adaptively untangle multiple trails. The emergent result is often a set of short, non-intersecting trails that produce good system throughput due a good trade off between the dual goals of minimizing travel distance(More)
We present an integrated human-robot interaction system that enables a user to select and command a team of two Unmanned Aerial Vehicles (UAV) using voice, touch, face engagement and hand gestures. This system integrates multiple human [multi]-robot interaction interfaces as well as a navigation and mapping algorithm in a coherent semi-realistic scenario.(More)