Institutions
|
About Us
|
Help
|
Gaeilge
0
1000
Home
Browse
Advanced Search
Search History
Marked List
Statistics
A
A
A
Show search options
Hide search options
Search using:
All
Any
None of these
Exact Phrase
in
Keyword (All Fields)
Title
Author
Subject
Institution
Funder
All
Any
None of these
Exact Phrase
in
Keyword (All Fields)
Title
Author
Subject
Institution
Funder
All
Any
None of these
Exact Phrase
in
Keyword (All Fields)
Title
Author
Subject
Institution
Funder
From
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933
1932
1931
1930
1929
1928
1927
1925
1923
1920
1919
1917
1915
1914
1913
1912
1911
1909
1908
1907
1906
1905
1904
1903
1902
1901
1900
1899
1898
1897
1896
1895
1894
1893
1892
1891
1890
1889
1888
1887
1886
1885
1884
1883
1882
1881
1880
1879
1878
1877
1876
1875
1874
1873
1872
1871
1870
1869
1867
1866
1865
1864
1862
1861
1859
1858
1857
1856
1855
1854
1853
1852
1851
1849
To
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933
1932
1931
1930
1929
1928
1927
1925
1923
1920
1919
1917
1915
1914
1913
1912
1911
1909
1908
1907
1906
1905
1904
1903
1902
1901
1900
1899
1898
1897
1896
1895
1894
1893
1892
1891
1890
1889
1888
1887
1886
1885
1884
1883
1882
1881
1880
1879
1878
1877
1876
1875
1874
1873
1872
1871
1870
1869
1867
1866
1865
1864
1862
1861
1859
1858
1857
1856
1855
1854
1853
1852
1851
1849
Optionally, filter by:
(Leave unchecked to search all fields)
Item Type
Book
Book chapter
Conference item
Contribution to newspaper/magazine
Doctoral thesis
Journal article
Master thesis (research)
Master thesis (taught)
Multimedia
Patent
Report
Review
Working paper
Other
Peer Review Status
Peer reviewed
Non peer reviewed
Unknown
Institution
Dublin City University
Dublin Institute of Technology
NUI Galway
NUI Maynooth
Trinity College Dublin
University College Cork
University College Dublin
University of Limerick
Funder
Enterprise Ireland (EI)
Environmental Protection Agency (EPA)
Health Research Board (HRB)
Higher Education Authority (HEA)
Irish Aid
Irish Research Council for Humanities and Social Sciences (IRCHSS)
Irish Research Council for Science Engineering and Technology (IRCSET)
Marine Institute
Science Foundation Ireland (SFI)
Teagasc
Language
Irish
English
Danish
French
German
Interlingue; Occidental
Italian
Japanese
Spanish; Castilian
Current Search:
All of 'Image' and 'processing' in all fields;
366 items found
Sort by
Relevance
Title
Author
Item type
Date
Institution
Peer review status
Language
Order
Ascending
Descending
25
50
100
per page
5
6
7
8
9
10
11
12
13
14
15
Bibtex
CSV
EndNote
RefWorks
RIS
XML
Displaying Results 351 - 366 of 366 on page 15 of 15
Marked
Mark
Semantic interpretation of events in lifelogging
(2012)
Wang, Peng
Semantic interpretation of events in lifelogging
(2012)
Wang, Peng
Abstract:
The topic of this thesis is lifelogging, the automatic, passive recording of a person’s daily activities and in particular, on performing a semantic analysis and enrichment of lifelogged data. Our work centers on visual lifelogged data, such as taken from wearable cameras. Such wearable cameras generate an archive of a person’s day taken from a first-person viewpoint but one of the problems with this is the sheer volume of information that can be generated. In order to make this potentially very large volume of information more manageable, our analysis of this data is based on segmenting each day’s lifelog data into discrete and non-overlapping events corresponding to activities in the wearer’s day. To manage lifelog data at an event level, we define a set of concepts using an ontology which is appropriate to the wearer, applying automatic detection of concepts to these events and then semantically enriching each of the detected lifelog events making them an index into the events. O...
http://doras.dcu.ie/16766/
Marked
Mark
Stresses and strain in silicon: 3-dimensional analytical capabilities for the non-invasive evaluation of strain fields in Si wafers and packaged chips
(2012)
Stopford, Jennifer
Stresses and strain in silicon: 3-dimensional analytical capabilities for the non-invasive evaluation of strain fields in Si wafers and packaged chips
(2012)
Stopford, Jennifer
Abstract:
IC manufacturing and chip embedding processes can induce stresses in Si, which have the potential to affect device functionality and reliability and ultimately lead to device failure. One of the challenges for the future of semiconductor manufacturing and chip packaging is the development of non-destructive metrology both at wafer level, and post-packaging. In this context this thesis proposes novel techniques for the in situ imaging of strain and internal damage in processed Si wafers and packaged Si chips. X-Ray Diffraction Imaging (XRDI) is a powerful, non-destructive technique for the imaging of strain in crystalline materials. Traditionally, section transmission topography geometry has been used to image the crystal volume and obtain direct information on the depth of defects present; however these images provide information on only a small volume of the crystal and can be difficult to interpret. In this thesis two novel 3-dimensional characterisation techniques ...
http://doras.dcu.ie/16686/
Marked
Mark
A neural network approach to smarter sensor networks for water quality monitoring
(2012)
O'Connor, Edel; Smeaton, Alan F.; O'Connor, Noel E.; Regan, Fiona
A neural network approach to smarter sensor networks for water quality monitoring
(2012)
O'Connor, Edel; Smeaton, Alan F.; O'Connor, Noel E.; Regan, Fiona
Abstract:
Environmental monitoring is evolving towards large-scale and low-cost sensor networks operating reliability and autonomously over extended periods of time. Sophisticated analytical instrumentation such as chemo-bio sensors present inherent limitations because of the number of samples that they can take. In order to maximize their deployment lifetime, we propose the coordination of multiple heterogeneous information sources. We use rainfall radar images and information from a water depth sensor as input to a neural network (NN) to dictate the sampling frequency of a phosphate analyzer at the River Lee in Cork, Ireland. This approach shows varied performance for different times of the year but overall produces output that is very satisfactory for the application context in question. Our study demonstrates that even with limited training data, a system for controlling the sampling rate of the nutrient sensor can be set up and can improve the efficiency of the more sophisticated nodes o...
http://doras.dcu.ie/16908/
Marked
Mark
Advances in the Detection and Reconstruction of Blotches in Archived Film and Video
(2001)
KOKARAM, ANIL CHRISTOPHER
Advances in the Detection and Reconstruction of Blotches in Archived Film and Video
(2001)
KOKARAM, ANIL CHRISTOPHER
http://hdl.handle.net/2262/5319
Marked
Mark
The aceToolbox: low-level audiovisual feature extraction for retrieval and classification
(2005)
O'Connor, Noel E.; Cooke, Eddie; Le Borgne, Hervé; Blighe, Michael; Adamek, Tomasz
The aceToolbox: low-level audiovisual feature extraction for retrieval and classification
(2005)
O'Connor, Noel E.; Cooke, Eddie; Le Borgne, Hervé; Blighe, Michael; Adamek, Tomasz
Abstract:
In this paper we present an overview of a software platform that has been developed within the aceMedia project, termed the aceToolbox, that provides global and local lowlevel feature extraction from audio-visual content. The toolbox is based on the MPEG-7 eXperimental Model (XM), with extensions to provide descriptor extraction from arbitrarily shaped image segments, thereby supporting local descriptors reflecting real image content. We describe the architecture of the toolbox as well as providing an overview of the descriptors supported to date. We also briefly describe the segmentation algorithm provided. We then demonstrate the usefulness of the toolbox in the context of two different content processing scenarios: similarity-based retrieval in large collections and scene-level classification of still images.
http://doras.dcu.ie/392/
Marked
Mark
Structural imbalance and aesthetic preference in domestic chicks
(2010)
Mulcahy, Paul; Elliott, Mark
Structural imbalance and aesthetic preference in domestic chicks
(2010)
Mulcahy, Paul; Elliott, Mark
Abstract:
In Arnheim¿s (1954/1974) theory of structural balance, an image is more aesthetically pleasing when it demonstrates balance between multiple internal sources of directed perceptual force. Areas of balance and preferred object positioning are assumed to be near/at centre, and along major structural axes (horizontal, vertical, and diagonals). We studied expediencies in visual processing of structural misalignment in week-old domestic chicks (Gallus gallus), using a conditioning procedure to reinforce chicks for pecking at either an ¿aligned¿ or ¿misaligned¿ image as their training stimulus. Subsequently, a generalization testing phase (using less axially dense stimuli) established whether the chicks would retain their group category, or revert to chance responding. Chicks trained on the misaligned stimuli were more likely to prefer the misaligned test stimuli, while the aligned group reverted to chance responding. Findings are discussed in terms of action-relevant dynamic information ...
http://hdl.handle.net/10379/1453
Marked
Mark
Application of Photopolymer Holographic Gratings
(2011)
Mihaylova, Emilia; Naydenova, Izabela; Sherif, Hosam; Martin, Suzanne; Toal, Vincent
Application of Photopolymer Holographic Gratings
(2011)
Mihaylova, Emilia; Naydenova, Izabela; Sherif, Hosam; Martin, Suzanne; Toal, Vincent
Abstract:
<p>Two optical set-ups for electronic speckle pattern shearing interferometry (ESPSI) using photopolymer diffractive optical elements are presented. Holographic gratings are recorded using an acrylamide based photopolymer material. Since the polymerisation process occurs during recording, the holograms are produced without any development or processing. In both ESPSI systems the photopolymer gratings are used to shear the image. In the first ESPSI system only one grating is used in combination with a sheet of ground glass. The distance between the grating and the ground glass can be used to control the amount of the shear. The sheared images on the ground glass are further imaged onto a CCD camera. In the second ESPSI system two gratings are used to shear the image. The gratings are placed between the object and an imaging lens in front of the CCD camera. The distance between the two gratings controls the size of the shear. The ESPSI system with two photopolymer holographic gr...
http://arrow.dit.ie/cieocon2/26
Marked
Mark
Indexing of fictional video content for event detection and summarisation
(2007)
Lehane, Bart; O'Connor, Noel E.; Lee, Hyowon; Smeaton, Alan F.
Indexing of fictional video content for event detection and summarisation
(2007)
Lehane, Bart; O'Connor, Noel E.; Lee, Hyowon; Smeaton, Alan F.
Abstract:
This paper presents an approach to movie video indexing that utilises audiovisual analysis to detect important and meaningful temporal video segments, that we term events. We consider three event classes, corresponding to dialogues, action sequences, and montages, where the latter also includes musical sequences. These three event classes are intuitive for a viewer to understand and recognise whilst accounting for over 90% of the content of most movies. To detect events we leverage traditional filmmaking principles and map these to a set of computable low-level audiovisual features. Finite state machines (FSMs) are used to detect when temporal sequences of specific features occur. A set of heuristics, again inspired by filmmaking conventions, are then applied to the output of multiple FSMs to detect the required events. A movie search system, named MovieBrowser, built upon this approach is also described. The overall approach is evaluated against a ground truth of over twenty-three ...
http://doras.dcu.ie/207/
Marked
Mark
Research in information managment at Dublin City University
(2002)
Roantree, Mark; Smeaton, Alan F.
Research in information managment at Dublin City University
(2002)
Roantree, Mark; Smeaton, Alan F.
Abstract:
The Information Management Group at Dublin City University has research themes such as digital multimedia, interoperable systems and database engineering. In the area of digital multimedia, a collaboration with our School of Electronic Engineering has formed the Centre for Digital Video Processing, a university designated research centre whose aim is to research, develop and evaluate content-based operations on digital video information. To achieve this goal, the range of expertise in this centre covers the complete gamut from image analysis and feature extraction through to video search engine technology and interfaces to video browsing. The Interoperable Systems Group has research interests in federated databases and interoperability, object modelling and database engineering. This report describes the research activities of the major groupings within the Information Management community in Dublin City University.
http://doras.dcu.ie/212/
Marked
Mark
Introduction to the special issue on semantic analysis for interactive multimedia services
(2008)
Kompatsiaris, Yiannis; Avrithis, Yannis; O'Connor, Noel E.
Introduction to the special issue on semantic analysis for interactive multimedia services
(2008)
Kompatsiaris, Yiannis; Avrithis, Yannis; O'Connor, Noel E.
http://doras.dcu.ie/647/
Marked
Mark
Strengths and weaknesses of optical encryption algorithms
(2005)
Strengths and weaknesses of optical encryption algorithms
(2005)
Abstract:
Many image encryption algorithms have been proposed over recent years Refs. 1-8, to cite a few. Many of these algorithms can be implemented using optical techniques taking advantage of both the natural two dimensional (2D) imaging capabilities of optics and the parallelisms achievable with optical processing. Optical systems are also capable of encrypting real world 3D objects [9]. The output of an encryption system is complex valued. Digital holographic techniques have been used to record high quality approximations of both the amplitude and phase of complex valued wavefronts output by the optical encryption systems [9,10]. Digital compression techniques have been used to enable efficient storage and transmission of encrypted holographic data over digital communication channels [11,12]. Though many optical encryption techniques have been proposed in the recent years, a systematic analysis of the strengths and weaknesses of these algorithms has not been undertaken yet, to the best o...
http://eprints.nuim.ie/572/
Marked
Mark
Line scratches detection and restoration via light diffraction
(2003)
KOKARAM, ANIL CHRISTOPHER
Line scratches detection and restoration via light diffraction
(2003)
KOKARAM, ANIL CHRISTOPHER
Abstract:
SFI
http://hdl.handle.net/2262/24564
Marked
Mark
Functional and Pathological Analysis of Biological Systems Using Vibrational Spectroscopy with Chemometric and Heuristic Approaches
(2010)
Meade, Aidan; Clarke, C.; Bonnier, Franck; Poon, K.; Garcia, A.; Knief, P.; Ostrowsksa,...
Functional and Pathological Analysis of Biological Systems Using Vibrational Spectroscopy with Chemometric and Heuristic Approaches
(2010)
Meade, Aidan; Clarke, C.; Bonnier, Franck; Poon, K.; Garcia, A.; Knief, P.; Ostrowsksa, Kamila; Salford, Lorenzo; Nawaz, Haq; Lyng, Fiona; Byrne, Hugh J.
Abstract:
<p>Vibrational spectroscopy (Raman and FTIR microspectroscopy) is an attractive modality for the analysis of biological samples since it provides a complete non-invasive acquisition of the biochemical fingerprint of the sample. Studies in our laboratory have applied vibrational spectroscopy to the analysis of biological function in response to external agents (chemotherapeutic drugs, ionising radiation, nanoparticles), together with studies of the pathology of tissue (skin and cervix) in health and disease. Genetic algorithms have been used to optimize spectral treatments in tandem with the analysis of the data (using generalized regression neural networks (GRNN), artificial neural networks (ANN), partial least squares modelling (PlS) and support vector machines (SVM), to optimize the complete analytical scheme and maximise the predictive capacity of the spectroscopic data. In addition we utilise variable selection techniques to focus on spectral features that provide maximal...
http://arrow.dit.ie/scschphyart/12
Marked
Mark
Fresnel and Fourier digital holography architectures: a comparison.
(2009)
Kelly, Damien P.; Monaghan, David S.; Pandey, Nitesh; Hennelly, Bryan M.
Fresnel and Fourier digital holography architectures: a comparison.
(2009)
Kelly, Damien P.; Monaghan, David S.; Pandey, Nitesh; Hennelly, Bryan M.
Abstract:
In this manuscript we examine the characteristics of holograms that are captured using both Fresnel and lens-less Fourier digital holographic systems. We begin by introducing some of the fundamental equations describing the intensity distribution captured by the camera. Naturally this captured intensity will vary depending on whether the system used is a Fourier or a Fresnel due to the different reference field in each case, however as we shall see with appropriate numerical processing it is possible to obtain similar performance from both systems. We discuss a reconstruction algorithm for changing the focus depth in Fourier holograms and examine how it effects the twin image and dc terms. A theoretical comparison with Fresnel holograms is made. Experimental results are provided to support our analysis. We finish with a brief conclusion.
http://eprints.nuim.ie/2468/
Marked
Mark
Movements in Binaural Space: Issues in HRTF Interpolation and Reverberation, with applications to Computer Music
(2010)
Carty, Brian
Movements in Binaural Space: Issues in HRTF Interpolation and Reverberation, with applications to Computer Music
(2010)
Carty, Brian
Abstract:
This thesis deals broadly with the topic of Binaural Audio. After reviewing the literature, a reappraisal of the minimum-phase plus linear delay model for HRTF representation and interpolation is offered. A rigorous analysis of threshold based phase unwrapping is also performed. The results and conclusions drawn from these analyses motivate the development of two novel methods for HRTF representation and interpolation. Empirical data is used directly in a Phase Truncation method. A Functional Model for phase is used in the second method based on the psychoacoustical nature of Interaural Time Differences. Both methods are validated; most significantly, both perform better than a minimum-phase method in subjective testing. The accurate, artefact-free dynamic source processing afforded by the above methods is harnessed in a binaural reverberation model, based on an early reflection image model and Feedback Delay Network diffuse field, with accurate interaural coherence. In turn, these ...
http://eprints.nuim.ie/2580/
Marked
Mark
Identification of a novel endoplasmic reticulum export motif within the eighth alpha-helical domain (alpha-H8) of the human prostacyclin receptor
(2011)
Donnellan, Peter D.; Kimbembe, Cisca C.; Reid, Helen M.; Kinsella, B. Therese
Identification of a novel endoplasmic reticulum export motif within the eighth alpha-helical domain (alpha-H8) of the human prostacyclin receptor
(2011)
Donnellan, Peter D.; Kimbembe, Cisca C.; Reid, Helen M.; Kinsella, B. Therese
Abstract:
The human prostacyclin receptor (hIP) undergoes agonist-dependent trafficking involving a direct interaction with Rab11a GTPase. The region of interaction was localised to a 14 residue Rab11a binding domain (RBD) within the proximal carboxyl-terminal (C)-tail domain of the hIP, consisting of Val299 – Val307 within the eighth helical domain (alpha-H8) adjacent to the palmitoylated residues at Cys308 – Cys311. However, the factors determining the anterograde transport of the newly synthesised hIP from the endoplasmic reticulum (ER) to the plasma membrane (PM) have not been identified. The aim of the current study was to identify the major ER export motif(s) within the hIP initially by investigating the role of Lys residues in its maturation and processing. Through site-directed and Ala-scanning mutational studies in combination with analyses of protein expression and maturation, functional analyses of ligand binding, agonist-induced intracellular signalling and confocal image analy...
http://hdl.handle.net/10197/3165
Displaying Results 351 - 366 of 366 on page 15 of 15
5
6
7
8
9
10
11
12
13
14
15
Bibtex
CSV
EndNote
RefWorks
RIS
XML
Item Type
Book (1)
Book chapter (5)
Conference item (240)
Doctoral thesis (19)
Journal article (95)
Master thesis (research) (5)
Other (1)
Institution
Dublin City University (221)
NUI Galway (12)
NUI Maynooth (26)
Trinity College Dublin (65)
University College Cork (5)
University College Dublin (14)
University of Limerick (4)
Dublin Institute of Technology (19)
Peer Review Status
Peer reviewed (295)
Non peer reviewed (68)
Unknown (3)
Year
2012 (8)
2011 (31)
2010 (38)
2009 (70)
2008 (49)
2007 (33)
2006 (34)
2005 (35)
2004 (21)
2003 (9)
2002 (7)
2001 (12)
2000 (4)
1999 (4)
1997 (6)
1996 (2)
1995 (2)
1994 (1)
built by Enovation Solutions