Browsing Electronic & Electrical Eng (Scholarly Publications) by Sponsor "Science Foundation Ireland"
Now showing items 21-40 of 58
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Exclusivity, externalities & easements: Dynamic spectrum access and coasean bargaining
(IEEE, 2007)This paper explores the possibility of realising Coasean bargains to remove the presence of externalities in a libertarian system of exclusive spectrum rights through the creation of various economically motivated easements. ... -
Expansion and phase correlation of a wavelength tunable gain-switched optical frequency comb
(2019)A novel scheme for the expansion and phase correlation of a wavelength tunable gain-switched optical frequency comb (OFC) is presented. This method entails firstly combining two gain-switched ... -
Exploring the reconfigurability options of multi-carrier CDMA in cognitive radio systems
(IEEE, 2007)The ever-increasing demands for access to frequency spectrum and more efficient methods of using this spectrum involving multi-carrier techniques are driving the development of reconfigurable and cognitive wireless devices. ... -
Extraction of Non-Binary Blotch Mattes.
(IEEE, 2009)Automated blotch removal is important in film restoration and typically involves a detection/interpolation step. Current algorithms model the corruption as a binary mixture between the original, clean images and an ... -
Fast removal of line scratches in old movies
(IEEE, 2004)In this paper a fast algorithm for removing line scratches in old movies is presented. It is strongly based on exploiting the defect visibility in the image. To this aim the Weber's law can be applied to coefficients of ... -
Field-induced transformations in the biaxial order of non-tilted phases in a bent-core smectic liquid crystal
(Institute of Physics, 2010)The structural and electro-optic investigations of an achiral bent-core molecule in SmAPA phase, in which the polar directors in the neighboring layers are arranged anti-ferroelectrically, show that it undergoes transformation ... -
An improved error resilience scheme for highly compressed data
(IEEE, 2002)The coding of highly compressed data streams involves removing as much redundancy from the stream as possible. However, as redundancy is removed, so is the ability of the decoder to recover from error conditions caused by ... -
Inlier modeling for multimedia data analysis
(2004)This paper presents a robust method to estimate the unknown standard deviation of a centred normal distribution from a mixture density. This method is applied to different signal processing problems. The first one concerns ... -
Joint Audio Visual Retrieval for Tennis Broadcasts,
(IEEE, 2003)In recent years, there has been increasing work in the area of content retrieval for sports. The idea is generally to extract important events or create summaries to allow personalisation of the media stream. While previous ... -
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Microtube cavities from templated filtering: confined optical modes and amplified spontaneous emission
(American Institute of Physics, 2006)The authors demonstrate a new route to the fabrication of individual aluminosilicate microtubes that can act as micron-scale optical cylindrical resonators. The microtubes were prepared using a simple vacuum assisted ... -
Modeling High Level Structure in Sports with Motion Driven HMMs,
(IEEE, 2004)In this paper, we investigate the retrieval of dynamic events that occur in broadcast sports footage. Dynamic events in sports are important in so far as they are related to the game semantics. Thus far, the temporal ... -
Multimodal continuous turn-taking prediction using multiscale RNNs
(2018)In human conversational interactions, turn-taking exchanges can be coordinated using cues from multiple modalities. To design spoken dialog systems that can conduct fluid interactions it is desirable to incorporate cues ... -
A new global estimation algorithm and its application to retrieval in sport events
(IEEE, 2001)We propose a novel global motion estimation technique based on weighted gradient and displaced frame difference (DFD) associated with Wiener estimation. Then, we apply this technique to parse events of a high level of ... -
Non-parametric wavelet based texture synthesis
(2005)This paper presents a new algorithm for synthesising image texture. Texture synthesis is an important process in image post-production. Previous approaches can be classified as either parametric or nonparametric. Of these ... -
OFDM sub-carrier allocation algorithm for a multiple user data enhanced radio server (MUDERS) using a general purpose processor platform
(2004)This paper presents a novel spectrum-allocation technique designed for a high data-rate and spectrally-efficient multiple-user wireless system. The core of this system is a reconfigurable radio, implemented on a ... -
On Parsing Visual Sequences with the Hidden Markov Model
(2009)Hidden Markov Models have been employed in many vision applications to model and identify events of interest. Their useis common in applications where HMMs are used to classify previously divided ... -
On the impact of introducing advanced devices into a cognitive radio network
(IEEE, 2009)Abstract?Cognitive Radio promises better spectrum utilisation through decentralised control, sensing and decision making. The devices are intended to be inexpensive, upgradeable and adaptable. However, introducing ... -
Pathological motion detection for robust missing data treatment in degraded archived media
(2006)This paper outlines an algorithm to improve the robustness of missing data treatment to pathological motion (PM). PM can cause misdiagnosis of clean image data as missing data. The proposed algorithm uses a probabilistic ... -
Phase-space equilibrium distributions and their applications to spin systems with nonaxially symmetric Hamiltonians
(American Institute of Physics, 2008)The Fourier series representation of the equilibrium quasiprobability density function WS(theta,phi) or Wigner function of spin ?orientations? for arbitrary spin Hamiltonians in a representation (phase) space of the polar ...