Results 101 to 110 of about 30,584 (306)

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Mind the Gap: Another look at the problem of the semantic gap in image retrieval

, 2006
This paper attempts to review and characterise the problem of the semantic gap in image retrieval and the attempts being made to bridge it. In particular, we draw from our own experience in user queries, automatic annotation and ontological techniques ...
Hare, Jonathon S., Enser, Peter G. B., Sandom, Christine J., Lewis, Paul H.   +3 more
core  

Multi-class particle swarm model selection for automatic image annotation [PDF]

, 2012
This article describes the application of particle swarm model selection (PSMS) to the problem of automatic image annotation (AIA). PSMS can be considered a black-box tool for the selection of effective classifiers in binary classification problems.
Hugo Jair Escalante Balderas, Manuel Montes y Gómez, Luis Enrique Sucar Succar   +2 more
core  

Paramagnetic Rim Lesions and Choroid Plexus Volume at Diagnosis Are Associated With Cognitive Progression Independent of Relapse and MRI Activity in Early Relapsing–Remitting Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Paramagnetic rim lesions (PRLs) and choroid plexus (CP) enlargement reflect smoldering inflammation in multiple sclerosis. Their role in cognitive progression remains unexplored. Eighty‐seven early relapsing–remitting MS patients were enrolled at diagnosis and followed longitudinally.
Stefano Ziccardi, Damiano Marastoni, Agnese Tamanti, Pietro Biasi, Valentina Visani, Annalisa Colombi, Tom A. Fuchs, Monica Sicchieri, Chiara Eccher, Francesco Guarnaccia, Milena Calderone, Valentina Camera, Francesca Benedetta Pizzini, Roberta Magliozzi, Marco Castellaro, Massimiliano Calabrese   +15 more
wiley   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi, Sola Al Ghazal, Salem Hannoun, Medhat A. Siddik, Nour M. Najjar, Jim Dagher, Joseph Abboud, Myriam G. Semaan, Samia J. Khoury   +8 more
wiley   +1 more source

A game-based approach towards human augmented image annotation.

, 2011
PhDImage annotation is a difficult task to achieve in an automated way. In this thesis, a human-augmented approach to tackle this problem is discussed and suitable strategies are derived to solve it.
Seneviratne, Attgalage Lasantha Gunathilaka
core  

A text-based approach to the ImageCLEF 2010 photo annotation task [PDF]

, 2010
The challenges of searching the increasingly large collections of digital images which are appearing in many places mean that automated annotation of images is becoming an important task. We describe our participation in the ImageCLEF 2010 Visual Concept
Min, Jinming, Li, Wei B., Jones, Gareth J.F.   +2 more
core  

Non-negative Matrix Factorisation for Object Class Discovery and Image Auto-annotation [PDF]

, 2008
In information retrieval, sub-space techniques are usually used to reveal the latent semantic structure of a data-set by projecting it to a low dimensional space.
Lewis, Paul, Tang, Jiayu, Paul H. Lewis, Jiayu Tang   +3 more
core   +1 more source

MIRACLE at ImageCLEFannot 2008: Classification of Image Features for Medical Image Annotation

, 2008
This paper describes the participation of MIRACLE research consortium at the ImageCLEF Medical Image Annotation task of ImageCLEF 2008. A lot of effort was invested this year to develop our own image analysis system, based on MATLAB, to be used in our ...
Villena Román, Julio, González Cristóbal, José Carlos, Goñi Menoyo, José Miguel, Lana Serrano, Sara   +3 more
core   +1 more source

A Linear-Algebraic Technique with an Application in Semantic Image Retrieval

, 2006
This paper presents a novel technique for learning the underlying structure that links visual observations with semantics. The technique, inspired by a text-retrieval technique known as cross-language latent semantic indexing uses linear algebra to learn
Hare, Jonathon S., Christine J. Sandom, Enser, Peter G. B., Paul H. Lewis, Jonathon S. Hare, Peter G. B. Enser, Sandom, Christine J., Lewis, Paul H.   +7 more
core   +1 more source