NDLI: Robust Multi-Modal Group Action Recognition in Meetings from Disturbed Videos with the Asynchronous Hidden Markov Model

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2007 IEEE International Conference on Image Processing

Chairman's welcome

Technical program overview

Technical Program Committee

Table of contents

Inverse Bit Plane Decoding Order for Turbo Code Based Distributed Video Coding

Encoder Rate Control for Transform Domain Wyner-Ziv Video Coding

Overlapped Quasi-Arithmetic Codes for Distributed Video Coding

Side Information Generation for Distributed Video Coding

Analyzing Symbol and Bit Plane-Based LDPC in Distributed Video Coding

Rate-Distortion Analysis and Bit Allocation Strategy for Motion Estimation at the Decoder using Maximum Likelihood Technique in Distributed Video Coding

Complexity-Rate-Distortion Analysis of Backward Channel Aware Wyner-Ziv Video Coding

Symmetric Distributed Coding of Stereo Video Sequences

Patterned Fabric Defect Detection using a Motif-Based Approach

A Nonlinear Feature Extractor for Texture Segmentation

Bayesian Example Based Segmentation using a Hybrid Energy Model

Texture-Based Infrared Image Segmentation by Combined Merging and Partitioning

Structural Texture Segmentation using Affine Symmetry

Texture Classification Based on Discriminative Features Extracted in the Frequency Domain

2D and 3D Deformable Models with Narrowband Region Energy

2D Lattice Extraction from Structured Environments

Fast Super-Resolution for Rational Magnification Factors

High Resolution Image Reconstruction in Shape from Focus

H2O: Reversible Hexagonal-Orthogonal Grid Conversion by 1-D Filtering

Sparse Gradient Image Reconstruction Done Faster

Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity

Effective False Color Suppression of Demosaicing Using Direction Inversion and Bidirectional Signal Correlation

Color Image Superresolution Based on a Stochastic Combinational Classification-Regression Algorithm

Markov Random Field Model-Based Edge-Directed Image Interpolation

Relative Position-Based Spatial Relationships using Mathematical Morphology

A Convex Programming Approach to Anisotropic Smoothing

Modeling Time-Varying Illumination Patterns in Video

Unsupervised Nonlinear Manifold Learning

Video Content Representation by Incremental Non-Negative Matrix Factorization

Noise and Signal Activity Maps for Better Imaging Algorithms

Perceptual Image Coding Based on a Maximum of Minimal Structural Similarity Criterion

Efficient Full-Reference Assessment of Image and Video Quality

Sensitivity Analysis Attacks Against Randomized Detectors

Analysis of Nonlinear Collusion Attacks on Fingerprinting Systems for Compressed Multimedia

Collusion Attack-Resilient Hierarchical Encryption of JPEG 2000 Codestreams with Scalable Access Control

An Attack Against Image-Based Selective Bitplane Encryption

On a Watermarking Scheme in the Logarithmic Domain and its Perceptual Advantages

Steganalysis of ±1 Embedding using Lossless Image Compression

Steganalyzing Texture Images

Steganography using Sensor Noise and Linear Prediction Synthesis Filter

Color Management of Printers by Regression over Enclosing Neighborhoods

Finding Optimal Integral Sampling Lattices for a given Frequency Support in Multidimensions

Does where you Gaze on an Image Affect your Perception of Quality? Applying Visual Attention to Image Quality Metric

Video Quality Assessment by Incorporating a Motion Perception Model

A New Objective Quality Metric for Frame Interpolation using in Video Compression

Demosaicing Based Onwavelet Analysis of the Luminance Component

A Constrained Non-Negative Matrix Factorization Approach to Unmix Highly Mixed Hyperspectral Data

Efficient Demosaicing Through Recursive Filtering

Representative Image Thumbnails for Good Browsing

Discriminative Signatures for Image Classification

KLDA - An Iterative Approach to Fisher Discriminant Analysis

A Generalized Multiple Instance Learning Algorithm for Iterative Distillation and Cross-Granular Propagation of Video Annotations

Classification by Cheeger Constant Regularization

Robust Multi-Modal Group Action Recognition in Meetings from Disturbed Videos with the Asynchronous Hidden Markov Model

Boosting of Maximal Figure of Merit Classifiers for Automatic Image Annotation

Sample Selection in Textured Images

Key-Places Detection and Clustering in Movies Using Latent Aspects

Fast Method for Joint Retrieval and Identification of JPEG Coded Images Based on DCT Sign

Estimating Missing Features to Improve Multimedia Retrieval

Radial Basis Functions Collocation Methods for Model Based Level-Set Segmentation

Morphological Processing of Severely Occluded Digital Elevation Images to Extract and Connect Stream Channels

Segmentation of Images on Polar Coordinate Meshes

Distancecut: Interactive Segmentation and Matting of Images and Videos

Multisegment Detection

Object-Respecting Color Image Segmentation

Chrominance Edge Preserving Grayscale Transformation with Approximate First Principal Component for Color Edge Detection

Number-Driven Perceptual Segmentation of Natural Color Images for Easy Decision of Optimal Result

Using Dempster-Shafer Theory to Fuse Multiple Information Sources in Region-Based Segmentation

Segmentation of Wheat Grains in Thermal Images Based on Pulse Coupled Neural Networks

Modeling vs. Segmenting Images Using A Probabilistic Approach

R-D Optimized Multi-Layer Encoder Control for SVC

Subjective Quality Analysis of Bit Rate Exchange Between Temporal and SNR Scalability in the MPEG4 SVC Extension

Layer-Adaptive Mode Decision and Motion Search for Scalable Video Coding with Combined Coarse Granular Scalability (CGS) and Temporal Scalability

Efficient Video Stream Switching with Progressive S-Frames

Motion Modeling with Geometry and Quad-tree Leaf Merging

Improved Motion Compensation in the Enhancement Layer for Spatially Scalable Video Coding

Optimal Selection of Encoding Configuration for Scalable Video Coding

Lagrange Multiplier Selection for 3-D Wavelet Based Scalable Video Coding

A Fully Scalable Motion Model for Scalable Video Coding

Spatially Adaptive Wavelet Transform for Video Coding with Multi-Scale Motion Compensation

Water Level Detection for Functionally Layered Video Coding

Object Coding using a Shape Adaptive Wavelet Transform with Scalable WDR Method

Lossless Coding of Color Images using Block-Adaptive Inter-Color Prediction

Using H.264/AVC-Intra for Segmentation-Driven Compound Document Coding

Enable Efficient Compound Image Compression in H.264/AVC Intra Coding

An Efficient Compression Algorithm for Hyperspectral Images Based on Correlation Coefficients Adaptive Three Dimensional Wavelet Zerotree Coding

Distributed Coding of Multiresolution Omnidirectional Images

Lossless Microarray Image Compression using Region Based Predictors

A High Performance Lossless Bayer Image Compression Scheme

Lossless Compression Algorithms for Post-OPC IC Layout

On the Use of JPEG 2000 to Achieve Minimum L-Infinity Error when Specifying a Compression Ratio

Enhanced Quality Scalability for JPEG2000 Code-Streams by the Characterization of the Rate-Distortion Slope

Image Coding with Parameter-Assistant Inpainting

Lossy Compression of Bilevel Images Based on Markov Random Fields

A Robust Matching Method for Distorted Fingerprints

The Optimal ROS-Based Symmetric Phase-Only Filter for Fingerprint Verification

A Two-Stage Fusion Scheme using Multiple Fingerprint Impressions

New Directions in Contact Free Hand Recognition

Single-Semantic Multi-Instance Fusion of Handwriting Based Biometric Authentication Systems

Wavelet Maxima and Moment Invariants Based Iris Feature Extraction

Rotation-Independent IRIS Matching by Motion Estimation

Learning Appearance Primitives of Iris Images for Ethnic Classification

Combining Matching Algorithms for Human Identification using Dental X-Ray Radiographs

An Improved 2DLPP Method on Gabor Features for Palmprint Recognition

Palmprint Verification using Complex Wavelet Transform

Retina Layer Segmentation and Spatial Alignment of Antibody Expression Levels

Restoration of Biomedical Images using Locally Adaptive B-Spline Smoothing

Parametric Deformable Block Matching for Ultrasound Imaging

A 3D Self-Adjust Region Growing Method for Axon Extraction

Wireless Capsule Endoscopy Images Enhancement using Contrast Driven Forward and Backward Anisotropic Diffusion

Enhancement of Visual Perception Through Dynamic Cues: An Application to Mammograms

Automatic Detection and Diagnosis of Diabetic Retinopathy

Extension of Mutual Subspace Method for Low Dimensional Feature Projection

Determination of Optimal Axes for Skin Lesion Asymmetry Quantification

Lung Nodule Detection using Eye-Tracking

A New CAD System for Early Diagnosis of Detected Lung Nodules

Polyp Detection in Colonoscopy Video using Elliptical Shape Feature

Early Termination Algorithms for Correlation Coefficient Based Block Matching

Fast Motion Estimation and Edge Information Inter-Mode Decision on H.264 Video Coding

Two Statistical Measures of Similarity for Object Association and Tracking in Color Image Sequences

Gradient Field Correlation for Keypoint Correspondence

Improved Motion Classification Techniques for Adaptive Multi-Pattern Fast Block-Matching Algorithm

Efficient Block Motion Estimation using Sector Based Approach

Architecture for Analog Variable Block-Size Motion Estimation

Motion Estimation using a Joint Optimisation of the Motion Vector Field and a Super-Resolution Reference Image

Spatio-Temporal Registration Techniques for Relightable 3D Video

Fast and Stable Vector Spline Method for Fluid Apparent Motion Estimation

Adaptive Multiscale Optical Flowestimation

Isomap Tracking with Particle Filtering

On 3D Partial Matching of Meaningful Parts

3D City Modeling Based on Hidden Markov Model

Shape from Shading for Hybrid Surfaces

A Probabilistic Framework for Geometry Reconstruction using Prior Information

Detection Strategies for Image Cube Trajectory Analysis

3D Building Reconstruction with Parametric Roof Superstructures

Stereoscopic System for 3-D Seabed Mosaic Reconstruction

On Surface Topography Reconstruction from Gradient Fields

Genetic Algorithms for Gielis Surface Recovery from 3D Data Sets

Surface Harmonics for Shape Modeling

Virtual Mirror: Real-Time Tracking of Shoes in Augmented Reality Environments

Surface Estimation and Tracking using Sequential MCMC Methods for Video Based Rendering

Volume 1 - 2007

2006 International Conference on Image Processing

IEEE International Conference on Image Processing 2005

2004 International Conference on Image Processing, 2004. ICIP '04.

Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429)

Proceedings. International Conference on Image Processing

Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205)

Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)

Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348)

Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269)

Proceedings of International Conference on Image Processing

Proceedings of 3rd IEEE International Conference on Image Processing

Proceedings., International Conference on Image Processing

Proceedings of 1st International Conference on Image Processing

Robust Multi-Modal Group Action Recognition in Meetings from Disturbed Videos with the Asynchronous Hidden Markov Model

Content Provider	IEEE Xplore Digital Library
Author	Al-Hames, M. Lenz, C. Reiter, S. Schenk, J. Wallhoff, F. Rigoll, G.
Copyright Year	2007
Description	Author affiliation: Tech. Univ. Munchen, Munchen (Al-Hames, M.; Lenz, C.; Reiter, S.; Schenk, J.; Wallhoff, F.; Rigoll, G.)
Abstract	The asynchronous hidden Markov model (AHMM) models the joint likelihood of two observation sequences, even if the streams are not synchronised. We explain this concept and how the model is trained by the EM algorithm. We then show how the AHMM can be applied to the analysis of group action events in meetings from both clear and disturbed data. The AHMM outperforms an early fusion HMM by 5.7% recognition rate (a rel. error reduction of 38.5%) for clear data. For occluded data, the improvement is in average 6.5% recognition rate (rel. error red. 40%). Thus asynchronity is a dominant factor in meeting analysis, even if the data is disturbed. The AHMM exploits this and is therefore much more robust against disturbances.
File Size	408683
File Format	PDF
ISBN	9781424414369
ISSN	15224880
DOI	10.1109/ICIP.2007.4379130
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Videos Hidden Markov models Cameras Organizational aspects Legged locomotion Speech analysis Microphone arrays Man machine systems Signal processing algorithms Multimedia communication Meetings Video signal processing
Content Type	Text
Resource Type	Article

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