Hledat
Zobrazují se záznamy 31-40 z 110
The Multimodal Signature Method: An Efficiency and Sensitivity Study
(IEEE, 2000)
The multimodal neighbourhood signature (MNS) method has given acceptable results both for the colour-based image retrieval and the object recognition task. Local colour content is concisely represented by invariant features ...
Selection of Speaker Independent Feature for a Speaker Verification System
(IEEE, 1998-08)
In this paper we propose an optimisation technique to choose a user independent feature subset from the input feature set for a dynamic time-warping (DTW) based text-dependent speaker verification system. The results ...
Large-Scale Discovery of Spatially Related Images
(IEEE, 2010-02)
We propose a randomized data mining method that finds clusters of spatially overlapping images. The core of the method relies on the min-Hash algorithm for fast detection of pairs of images with spatial overlap, the so-called ...
Unsupervised Discovery of Co-occurrence in Sparse High Dimensional Data
(IEEE, 2010-06)
An efficient min-Hash based algorithm for discovery of dependencies in sparse high-dimensional data is presented. The dependencies are represented by sets of features co-occurring with high probability and are called ...
Tracking by an Optimal Sequence of Linear Predictors
(IEEE, 2009-04)
We propose a learning approach to tracking explicitly minimizing the computational complexity of the tracking process subject to user-defined probability of failure (loss-of-lock) and precision. The tracker is formed by a ...
Spatio-Temporal Nonrigid Registration for Ultrasound Cardiac Motion Estimation
(IEEE, 2005-09)
We propose a new spatio-temporal elastic registration algorithm for motion reconstruction from a series of images. The specific application is to estimate displacement fields from two-dimensional ultrasound sequences of ...
Generalized Sampling: A Variational Approach. Part I: Theory
(IEEE, 2002-08)
We consider the problem of reconstructing a multidimensional vector function fin: Rm→Rn from a finite set of linear measures. These can be irregularly sampled responses of several linear filters. Traditional approaches ...
Unwarping of Unidirectionally Distorted EPI Images
(IEEE, 2000-02)
Echo-planar imaging (EPI) is a fast nuclear magnetic resonance imaging (MRI) method. Unfortunately, local magnetic field inhomogeneities induced mainly by the subject's presence cause significant geometrical distortion, ...
Fast Parametric Elastic Image Registration
(IEEE, 2003-11)
We present an algorithm for fast elastic multidimensional intensity-based image registration with a parametric model of the deformation. It is fully automatic in its default mode of operation. In the case of hard real-world ...
Generalized Sampling: A Variational Approach. Part II: Applications
(IEEE, 2002-08)
The variational reconstruction theory from a companion paper finds a solution consistent with some linear constraints and minimizing a quadratic plausibility criterion. It is suitable for treating vector and multidimensional ...