A vision system for landing an unmanned aerial vehicle

CS Sharp, O Shakernia… - Proceedings 2001 ICRA …, 2001 - ieeexplore.ieee.org
We present the design and implementation of a real-time computer vision system for a
rotorcraft unmanned aerial vehicle to land onto a known landing target. This vision system …

Landing an unmanned air vehicle: Vision based motion estimation and nonlinear control

O Shakernia, Y Ma, TJ Koo, S Sastry - Asian journal of control, 1999 - Wiley Online Library
In this paper, we use computer vision as a feedback sensor in a control loop for landing an
unmanned air vehicle (UAV) on a landing pad. The vision problem we address here is then a …

Probabilistic pursuit-evasion games: theory, implementation, and experimental evaluation

R Vidal, O Shakernia, HJ Kim… - IEEE transactions on …, 2002 - ieeexplore.ieee.org
We consider the problem of having a team of unmanned aerial vehicles (UAVs) and unmanned
ground vehicles (UGVs) pursue a second team of evaders while concurrently building a …

[PDF][PDF] Risk parity portfolio vs. other asset allocation heuristic portfolios

D Chaves, J Hsu, F Li, O Shakernia - Journal of Investing, 2011 - researchgate.net
In this paper, we conduct a horse race between representative Risk Parity portfolios and
other asset allocation strategies, including equal weighting, minimum-variance, mean–variance …

Formation control of nonholonomic mobile robots with omnidirectional visual servoing and motion segmentation

R Vidal, O Shakernia, S Sastry - 2003 IEEE International …, 2003 - ieeexplore.ieee.org
We consider the problem of having a team of nonholonomic mobile robots follow a desired
leader-follower formation using omnidirectional vision. By specifying the desired formation in …

Multiple view motion estimation and control for landing an unmanned aerial vehicle

O Shakernia, R Vidal, CS Sharp, Y Ma… - … on Robotics and …, 2002 - ieeexplore.ieee.org
We present a multiple view algorithm for vision based landing of an unmanned aerial vehicle.
Our algorithm is based on our results in multiple view geometry which exploit the rank …

[PDF][PDF] Efficient algorithms for computing risk parity portfolio weights

D Chaves, J Hsu, F Li, O Shakernia - Journal of Investing, 2012 - top1000funds.com
This paper presents two simple algorithms to calculate the portfolio weights for a risk parity
strategy, where asset class covariance information is appropriately ƚĂŬĞŶ ŝŶƚŽ …

Following the flock [formation control]

R Vidal, O Shakernia, S Sastry - IEEE Robotics & Automation …, 2004 - ieeexplore.ieee.org
A new approach to formation control of nonholonomic mobile robots equipped with central
panoramic cameras is presented. The approach uses motion segmentation techniques to …

Pursuit-evasion games with unmanned ground and aerial vehicles

R Vidal, S Rashid, C Sharp, O Shakernia… - … 2001 ICRA. IEEE …, 2001 - ieeexplore.ieee.org
Presents the implementation of a hierarchical architecture for the coordination and control of
a heterogeneous team of autonomous agents. We consider the problem of having a team of …

Vision guided landing of an unmanned air vehicle

O Shakernia, Y Ma, TJ Koo… - Proceedings of the …, 1999 - ieeexplore.ieee.org
In this paper, we study the problem of using computer vision as a sensor to control the landing
of an unmanned air vehicle (UAV). The vision problem we address is a special case of the …