the proceedings contain 112 papers. the special focus in this conference is on Audio and video-based biometric person authentication. the topics include: Robust face recognition in the presence of clutter;an image pre...
ISBN:
(纸本)9783540403029
the proceedings contain 112 papers. the special focus in this conference is on Audio and video-based biometric person authentication. the topics include: Robust face recognition in the presence of clutter;an image preprocessing algorithm for illumination invariant face recognition;quad phase minimum average correlation energy filters for reduced memory illumination tolerant face authentication;component-based face recognition with 3D morphable models;a comparative study of automatic face verification algorithms on the BANCA database;assessment of time dependency in face recognition;constraint shape model using edge constraint and gabor wavelet based search;expression-invariant 3D face recognition;automatic estimation of a priori speaker dependent thresholds in speaker verification;a bayesian network approach for combining pitch and reliable spectral envelope features for robust speaker verification;cluster-dependent feature transformation for telephone-based speaker verification;LUT-Based adaboost for gender classification;independent component analysis and support vector machine for face feature extraction;real-time emotion recognition using biologically inspired models;a dual-factor authentication system featuring speaker verification and token technology;wavelet-based 2-parameter regularized discriminant analysis for face recognition;face tracking and recognition from stereo sequence;face recognition system using accurate and rapid estimation of facial position and scale;fingerprint enhancement using oriented diffusion filter;fusion of statistical and structural fingerprint classifiers;learning features for fingerprint classification;fingerprint matching with registration pattern inspection and biometric template selection.
Fingerprints are widely used in automatic identity verification systems. the core of such systems is the verification algorithm to match two fingerprints. So far, various method for fingerprint matching have been prop...
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the proceedings contain 52 papers. the special focus in this conference is on Discrete Geometry for Computer Imagery. the topics include: Fuzzy spatial relationships from mathematical morphology for model-based patter...
ISBN:
(纸本)3540204997
the proceedings contain 52 papers. the special focus in this conference is on Discrete Geometry for Computer Imagery. the topics include: Fuzzy spatial relationships from mathematical morphology for model-based patternrecognition and spatial reasoning;on the morphological processing of objects with varying local contrast;watershed algorithms and contrast preservation;shape preserving digitization of ideal and blurred binary images;on local definitions of length of digital curves;homotopic transformations of combinatorial maps;convex structuring element decomposition for single scan binary mathematical morphology;binary shape normalization using the radon transform;3D shape matching through topological structures;contour-based shape representation for image compression and analysis;look-up tables for medial axis on squared Euclidean distance transform;towards an invertible Euclidean reconstruction of a discrete object;reconstruction of discrete surfaces from shading images by propagation of geometric features;shape representation and indexing based on region connection calculus and oriented matroid theory;incremental algorithms based on discrete green theorem;topology preservation and tricky patterns in gray-tone images;shortest route on height map using gray-level distance transforms;on the use of shape primitives for reversible surface skeletonization;efficient computation of 3D skeletons by extreme vertex encoding;perimeter and area estimations of digitized objects with fuzzy borders;removal and contraction for n-dimensional generalized maps and a computation of a crystalline flow starting from non-admissible polygon using expanding self similar solutions.
the generalised Radon transform is a well-known tool for detecting parameterised shapes in an image. Applying the Radon transform to an image results in a parameter response function (PRF). Curves in the image become ...
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One of the goals of the EMBASSI(1) project is the creation of a speech interface between a user and a TV set or VCR. the interface should allow spontaneous speech recorded by microphones far away from the speaker. thi...
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ISBN:
(纸本)354020024X
One of the goals of the EMBASSI(1) project is the creation of a speech interface between a user and a TV set or VCR. the interface should allow spontaneous speech recorded by microphones far away from the speaker. this paper describes experiments evaluating the robustness of a speech recognizer against reverberation. For this purpose a speech corpus was recorded with several different distortion types under real-life conditions. On these data the recognition results for reverberated signals using mu-law companded features were compared to an MFCC baseline system. Trained with clear speech, the word accuracy for the mu-law features on highly reverberated signals was 3 percent points better than the baseline result.
this paper describes techniques used in the detection of modulation schemes and their implementation in the Software Defined Radio (SDR) systems for 4(th) generation (4G) mobile network. these techniques are divided i...
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ISBN:
(纸本)0780381149
this paper describes techniques used in the detection of modulation schemes and their implementation in the Software Defined Radio (SDR) systems for 4(th) generation (4G) mobile network. these techniques are divided into two groups: maximum likelihood approach and patternrecognition approach. theoretical information on these methods are presented. their strength and weakness are discussed. A general model of the 4G SDR system is proposed.
the proceedings contain 39 papers. the special focus in this conference is on Unsupervised Learning, Matching, Probabilistic Modelling, Segmentation, Grouping, Shape Modelling and Reconstruction. the topics include: S...
ISBN:
(纸本)3540404988
the proceedings contain 39 papers. the special focus in this conference is on Unsupervised Learning, Matching, Probabilistic Modelling, Segmentation, Grouping, Shape Modelling and Reconstruction. the topics include: Stochastic search for optimal linear representations of images on spaces with orthogonality constraints;curve matching using the fast marching method;EM algorithm for clustering an ensemble of graphs with comb matching;information force clustering using directed trees;active sampling strategies for multihypothesis testing;likelihood based hierarchical clustering and network topology identification;learning mixtures of tree-unions by minimizing description length;hierarchical annealing for random image synthesis;semi-supervised image segmentation by parametric distributional clustering;path variation and image segmentation;a fast snake segmentation method applied to histopathological sections;a compositionality architecture for perceptual feature grouping;using prior shape and points in medical image segmentation;separating a texture from an arbitrary background using pair wise grey level cooccurrences;surface recovery from 3D point data using a combined parametric and geometric flow approach;curvature vector flow to assure convergent deformable models for shape modelling;a MAP estimation algorithm using IIR recursive filters;estimation of rank deficient matrices from partial observations;contextual and non-combinatorial approach to feature extraction;generalized multi-camera scene reconstruction using graph cuts and graph matching using spectral seriation.
In this paper the problem of reducing the noise in a digital image preserving information about edges and corners is addressed. To this aim a new technique is described, based on the USAN principle [8]. this principle...
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the ever increasing number of image modalities available to doctors for diagnosis purposes has established an important need to develop techniques that support work-load reduction and information maximization. To this...
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Face and iris identification have been employed in various biometric applications. Besides improving verification performance, the fusion of these two biometrics has several other advantages. We use two different stra...
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