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Ghostbusters: A parts-based NMF algorithm
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
An exact nonnegative matrix decomposition algorithm is proposed. This is achieved by 1) Taking a nonlinear approximation of a sparse real-valued dataset at a given tolerance-to-error constraint, c; Choosing an arbitrary ...
A simplified approach to perceptual quality adaptation of multi-dimensional scalable video
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Content Aware Networking (CAN) can enhance the distribution of media through awareness in the network of the content it is carrying. In this way functions such as content adaptation, content routing and resource allocation ...
Extraction of reliability indicators from large-scale, highly variable timing data of MEMS switches
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
In this paper we present a method for monitoring and processing large-scale highly variable and nonlinear reliability data for MEMS RF Switches. The data is generated by measuring the switch actuation dynamics and a ...
IEEE 802.15.4a UWB-IR ranging with bilateral transmitter power control methodology for multipath effects mitigation
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
IEEE 802.15.4a Ultra Wideband Impulse Radio (UWB-IR) measures the distance using the time-of-arrival (TOA) of the leading path signal. Multipath propagation in indoor environments can adversely affect the signal to noise ...
Reliable system design with a high degree of diagnostic procedures for embedded systems
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Maintenance starts with reliable diagnostics. Programming Logic Controllers (PLCs) are often equipped with a high degree of diagnostic procedures in order to ensure that the processing unit is functioning correctly. It is ...
Wireless sensed environment for body area networks
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
In low power wireless body area networks it is envisaged that there will be communication between on-body devices and wireless nodes placed in the environment (sensed environment) to provide a range of applications including ...
Experimental evaluation of mobile phone sensors
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Smart phone has become an important part of people's daily life. Most of current smart phone are equipped with a rich set of built-in sensors. The mobile applications such as geo-location based video annotation and indoor ...
Robust digital video watermarking using reversible data hiding and visual cryptography
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Watermarking is a major image processing application used to authenticate user documents by embedding and hiding some authenticated piece of information behind an image, audio or the video file. For example, copyright ...
Vehicle speed estimation using GPS/RISS (Reduced Inertial Sensor System)
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Land vehicle speed is usually measured by wheel speed or GPS. While these methods are adequate for some purposes, there are some drawbacks. Wheel speed may differ greatly from vehicle speed due to tyre slip. In addition, ...
Improved stereo instrumental track recovery using median nearest-neighbour inpainting
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Several algorithms have been proposed for vocal removal which operate by finding the position of the vocals in the stereo field and removing the time-frequency bins associated with that position. However, in many cases, ...