In many situations, Miniature Aerial Vehicles (MAVs) are limited to using only on-board sensors for navigation. This limits the data available to algorithms used for stabilization and localization, and current control methods are often insufficient to allow reliable hovering in place or trajectory following. In this research, we explore using machine learning to predict the drift (flight path e...

Detrended fluctuation analysis (DFA) has been proposed as a robust technique to determine possible long-range correlations in power-law processes [1]. However, recent studies have reported the susceptibility of DFA to trends [2] which give rise to spurious crossovers and prevent reliable estimation of the scaling exponents. Inspired by these reports, we propose a technique based on singular val...

This paper presents a novel enhancement in design of virtual keyboards for consumers of tablets and standard computing devices. Hand video is captured for virtual keyboard functionality. Hand video is augmented with a background keyboard and displayed on lower part of screen to provide feedback to user for seamless interaction with virtual keyboard. Hands are detected in video sequence. Finger ...

We propose a new measure to characterize the dimension of complex networks based on the ergodic theory of dynamical systems. This measure is derived from the correlation sum of a trajectory generated by a random walker navigating the network, and extends the classical Grassberger-Procaccia algorithm to the context of complex networks. The method is validated with reliable results for both synth...

This paper addresses a network-wide scheduling problem for generating, adjusting and optimizing flight schedules in en-route airspace. The aim of scheduling is twofold: to support flight plans by providing flight schedules reliable on optimal flow restrictions; and to assist en-route traffic control by ensuring safe and ordered trajectory of traffic. Firstly, we design an algorithm to generate ...

In this paper, a tele-operated gesture recognition mobile robot using a stereo vision is represented. We propose a real-time face and hand classification and 3D position extraction using a stereo vision embedded system. To obtain the disparity image, we used the stereo vision process on FPGA and developed the embedded system to obtain the image sequence for basic image processing. Then we appli...

We present a novel trajectory computation algorithm to smooth piecewise linear collision-free trajectories computed by samplebased motion planners. Our approach uses cubic B-splines to generate trajectories which are C almost everywhere, except on a few isolated points. The algorithm performs local spline refinement to compute smooth, collision-free trajectories and it works well even in enviro...

Low-energy atomic impacts on the Ag(110) surface are investigated by molecular dynamics simulations based on reliable manybody semiempirical potentials. Trajectory deflections (steering) caused by the atom-surface interaction are observed, together with impact-following, transient-mobility effects. Such processes are quantitatively analyzed and their dependence on the initial kinetic energy and...

This work proposes an equivalent layered model based on the contour trajectory for Double Sided Incremental Forming (DSIF). The layered deformation and displacement are analyzed for the truncated cones with different height. The displacement for every layer is obtained by numerical analysis and theoretical calculation under the assumption of straight projection. A general method is introduced t...

Tendon-based Stewart platforms are capable of high speeds and accelerations. Thus, a reliable controller running with a high frequency is required. Here, an implementation based on a modular controller architecture is shown. To control the platform on a given trajectory, the implemented position control has to be extended by a tendon force control which generates defined and safe force values. ...