80,308 research outputs found
Vision and Learning for Deliberative Monocular Cluttered Flight
Cameras provide a rich source of information while being passive, cheap and
lightweight for small and medium Unmanned Aerial Vehicles (UAVs). In this work
we present the first implementation of receding horizon control, which is
widely used in ground vehicles, with monocular vision as the only sensing mode
for autonomous UAV flight in dense clutter. We make it feasible on UAVs via a
number of contributions: novel coupling of perception and control via relevant
and diverse, multiple interpretations of the scene around the robot, leveraging
recent advances in machine learning to showcase anytime budgeted cost-sensitive
feature selection, and fast non-linear regression for monocular depth
prediction. We empirically demonstrate the efficacy of our novel pipeline via
real world experiments of more than 2 kms through dense trees with a quadrotor
built from off-the-shelf parts. Moreover our pipeline is designed to combine
information from other modalities like stereo and lidar as well if available
Spartan Daily, August 27, 1981
Volume 77, Issue 1https://scholarworks.sjsu.edu/spartandaily/6776/thumbnail.jp
The Heavy Photon Search Experiment
Interest in new physics models including so-called hidden sectors has
increased in recent years as a result of anomalies from astrophysical
observations. The Heavy Photon Search (HPS) experiment proposed at Jefferson
Lab will look for a mediator of a new force, a GeV-scale massive U(1) vector
boson, the Heavy Photon, which acquires a weak coupling to electrically charged
matter through kinetic mixing. The HPS detector, a large acceptance forward
spectrometer based on a dipole magnet, consists of a silicon tracker-vertexer,
a lead-tungstate electromagnetic calorimeter, and a muon detector. HPS will
search for the e+e- or mu+mu- decay of the Heavy Photon produced in the
interaction of high energy electrons with a high Z target, possibly with a
displaced decay vertex. In this article, the description of the detector and
its sensitivity are presented.Comment: 4 pages, 4 figures, contributed to the 8th Patras Workshop on Axions,
WIMPs and WISPs, Chicago, July 18-22, 201
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