Monthly Archives: August 2016

@InProceedings{2016-08-WANG,
title = {{Ear in the sky: Ego-noise reduction for auditory micro aerial vehicles}},
author = {Lin Wang and Andrea Cavallaro},
booktitle = {{Proceedings of 13th IEEE International Conference on Advanced Signal and Video based Surveillance (AVSS)}},
address= {Colorado Springs, USA},
date = {2016-08-23/2016-08-26},
doi = {10.1109/AVSS.2016.7738063},
year = {2016},
abstract = {We investigate the spectral and spatial characteristics of the ego-noise of a multirotor micro aerial vehicle (MAV) using audio signals captured with multiple onboard microphones and derive a noise model that grounds the feasibility of microphone-array techniques for noise reduction. The spectral analysis suggests that the ego-noise consists of narrowband harmonic noise and broadband noise, whose spectra vary dynamically with the motor rotation speed. The spatial analysis suggests that the ego-noise of a P-rotor MAV can be modeled as P directional noises plus one diffuse noise. Moreover, because of the fixed positions of the microphones and motors, we can assume that the acoustic mixing network of the ego-noise is stationary. We validate the proposed noise model and the stationary mixing assumption by applying blind source separation to multi-channel recordings from both a static and a moving MAV and quantify the signal-to-noise ratio improvement. Moreover, we make all the audio recordings publicly available.}
}

@Misc{2016-08-CAVALLARO,
author = {Andrea Cavallaro},
title = {{Autonomous robotic cameras for collaborative target localization}},
howpublished = {Invited talk at IEEE AVSS 2016 Workshop on Surveillance for Location-aware Data Protection},
date = {2016-08-23},
year = {2016},
address = {Colorado Springs, CO, USA},
handouts = {http://www.eecs.qmul.ac.uk/~andrea/dwnld/2016.08.23_ColoradoSprings_AutonomousRoboticCameras.pdf}
}