Image Analysis for Multimedia Interactive Services, 2007. WIAMIS '07. Eighth International Workshop on

6-8 June 2007

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  • Eight International Workshop on Image Analysis for Multimedia Interactive Services - Cover

    Publication Year: 2007, Page(s): c1
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  • Eight International Workshop on Image Analysis for Multimedia Interactive Services - Title

    Publication Year: 2007, Page(s):i - iii
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  • Eight International Workshop on Image Analysis for Multimedia Interactive Services - Copyright

    Publication Year: 2007, Page(s): iv
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  • Eight International Workshop on Image Analysis for Multimedia Interactive Services - Table of contents

    Publication Year: 2007, Page(s):v - x
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  • Message from the General Chairs

    Publication Year: 2007, Page(s): xi
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  • Organizing Committee

    Publication Year: 2007, Page(s): xii
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  • Sponsors

    Publication Year: 2007, Page(s): xiii
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  • Recent Advances and Open Issues of Digital Image/Video Search

    Publication Year: 2007, Page(s): xiv
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (121 KB)

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  • Composite Object Detection in Video Sequences: Application to Controlled Environments

    Publication Year: 2007, Page(s): 1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB) | HTML iconHTML

    This paper presents a set of techniques for the detection of composite objects in video recordings of a controlled environment. Firstly, a selective region-based analysis is performed by tuning the algorithm to the perceptual characteristics of the object in the environment. Secondly, the controlled perceptual and semantic variabilities of the object are addressed by the detection analysis thanks ... View full abstract»

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  • Using Decision Trees for Knowledge-Assisted Topologically Structured Data Analysis

    Publication Year: 2007, Page(s): 2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (154 KB) | HTML iconHTML

    Supervised learning of an ensemble of randomized trees is considered to recognize classes of events in topologically structured data (e.g. images or time series). We are primarily interested in classification problems that are characterized by severe scarcity of the training samples. The main idea of our paper consists in favoring the selection of attributes that are known to efficiently discrimin... View full abstract»

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  • Event Alignment for Cross-Media Feature Extraction in the Football Domain

    Publication Year: 2007, Page(s): 3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (185 KB) | HTML iconHTML

    This paper describes an experiment in creating cross-media descriptors from football-related text and videos. We used video analysis results and combined them with several textual resources - both semi- structured (tabular match reports) and unstructured (textual minute-by-minute match reports). Our aim was to discover the relations among six video data detectors and their behavior during a time w... View full abstract»

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  • Surveillance Event Interpretation Using Generalized Stochastic Petri Nets

    Publication Year: 2007, Page(s): 4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3229 KB) | HTML iconHTML

    In this paper we present video event representation and recognition approaches that are based on Generalized Stochastic Petri Nets (GSPN). Along with the typical modeling capabilities of GSPN for video recognition, we propose to integrate the Petri net marking analysis for better scene understanding. This work focuses on behavior modeling and uses the results of an external module for object detec... View full abstract»

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  • A Framework for Ontology Enriched Semantic Annotation of CCTV Video

    Publication Year: 2007, Page(s): 5
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (251 KB) | HTML iconHTML

    This paper deals with the problem of semantic transcoding of CCTV video footage. A framework is proposed that combines Computer Vision algorithms that extract visual semantics, together with Natural Language Processing that automatically builds the domain ontology from unstructured text annotations. The final aim is a system that will link the visual and text semantics in order to routinely annota... View full abstract»

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  • Hidden Markov Models for Video Skim Generation

    Publication Year: 2007, Page(s): 6
    Cited by:  Papers (12)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (138 KB) | HTML iconHTML

    In this paper we present a statistical framework based on hidden Markov models (HMMs) for video skimming. A chain of HMMs is used to model subsequent story units: HMM states represent different visual-concepts, transitions model the temporal dependencies in each story unit, and stochastic observations are given by single shots. The skim is generated as an observation sequence, where, in order to p... View full abstract»

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  • A Topology Preserving Approach for Image Classification

    Publication Year: 2007, Page(s): 7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB) | HTML iconHTML

    In this paper, an approach for image analysis and classification is presented. It is based on a topology preserving approach to automatically create a relevance map from salient areas in natural images. It also derives a set of well-structured representations from low-level description to drive the final classification. The backbone of this approach is a distribution mapping strategy involving two... View full abstract»

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  • Orientation histogram-based matching for region tracking

    Publication Year: 2007, Page(s): 8
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (581 KB) | HTML iconHTML

    A region tracking technique with particular emphasis on rotation robustness is presented. It is based on region matching divided in two consecutive steps, gradient orientation histogram matching and template matching through normalised cross correlation (NCC). Given the orientation histograms of two image patches, a novel technique is used to estimate the rotation between them together with the si... View full abstract»

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  • A Directional Texture Descriptor via 2D Walking Ant Histogram

    Publication Year: 2007, Page(s): 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (507 KB) | HTML iconHTML

    A novel texture descriptor, which can be extracted from the major object edges automatically and used for the content-based retrieval in multimedia databases, is presented. The proposed method is adopted from the 2D walking ant histogram, which is in fact a generic shape descriptor recently developed for general purpose multimedia databases. 2D WAH shape descriptor is motivated from the imaginary ... View full abstract»

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  • A review of different object recognition methods for the application in driver assistance systems

    Publication Year: 2007, Page(s): 10
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (133 KB) | HTML iconHTML

    Algorithms in the field of driver assistance have been limited by their requirement for real time in the initial phase of their development. However, as computing power is increasing steadily, new possibilities arise. With focus on this situation a review is presented not defined by its designated field of application in driver assistance systems, but rather by the methods in use, namely video-bas... View full abstract»

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  • Automatic Detection and Classification of Traffic Signs

    Publication Year: 2007, Page(s): 11
    Cited by:  Papers (21)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (283 KB) | HTML iconHTML

    This paper proposes algorithms for the automatic detection of traffic signs from photo or video images and their classification to provide a driver alert system. Several examples taken from Portuguese roads are used to demonstrate the effectiveness of the proposed system. Traffic signs are detected by analyzing color information, notably red and blue, contained on the images. The detected signs ar... View full abstract»

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  • Using Multiple Domain Visual Context in Image Analysis

    Publication Year: 2007, Page(s): 12
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1437 KB) | HTML iconHTML

    In this paper we propose an algorithm to improve the results of knowledge-assisted image analysis, based on contextual information. In order to achieve this, we utilize fuzzy algebra, fuzzy sets and relations, towards efficient manipulation of image region concepts. We provide a novel context modelling, based on the OWL language, using RDF reification. Initial image analysis results are enhanced b... View full abstract»

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  • Discriminative Feature Selection for Applause Sounds Detection

    Publication Year: 2007, Page(s): 13
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    The specific sounds such as applause, laughter, explosions, etc. are very helpful to understand high level semantic of audio/video content. The paper focuses on feature selection by evolutional programming for an automatic detection of applause in audio stream. A set of the most discriminative features is selected by Genetic Algorithm and Simulated Annealing. The experiments are run on more than 9... View full abstract»

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  • Global Image Search vs. Regional Search in CBIR Systems

    Publication Year: 2007, Page(s): 14
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (401 KB) | HTML iconHTML

    The global image search and regional image search are compared by using content-based image retrieval system with user relevance feedback. It was expectable that regional search can minimize the effect of the background to the image retrieval. Images from database are partitioned into regular rectangular regions: 4times4 non-overlapped (NOV) regions and 3times3 overlapped (OV) regions, and a featu... View full abstract»

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  • Data-driven and Procedural Analysis and Synthesis of Multimedia

    Publication Year: 2007, Page(s): xv
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  • Regression-Based Template Tracking in Presence of Occlusions

    Publication Year: 2007, Page(s): 15
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (183 KB) | HTML iconHTML

    This paper addresses the problem of efficient visual 2D template tracking in the presence of large motions and partial occlusions. We adopt a learning approach, in our case using a Bayesian Mixture of Experts (BME), in which observations at each frame yield direct predictions of the state (e.g. position / scale) of the tracked target. In contrast to other methods in the literature, we explicitly a... View full abstract»

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  • kNN-based high-dimensional Kullback-Leibler distance for tracking

    Publication Year: 2007, Page(s): 16
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1196 KB) | HTML iconHTML

    This paper deals with region-of-interest (ROI) tracking in video sequences. The goal is to determine in successive frames the region which best matches, in terms of a similarity measure, a ROI defined in a reference frame. Two aspects of such a measure between the reference region and a candidate region can be distinguished: radiometry which indicates if the regions have similar colors and geometr... View full abstract»

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