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International Workshop on Image Analysis for multimedia Interactive Services, WIAMIS

作者： Víctor Valdés José M. Martínez Grupo de Tratamiento de Imágenes Escuela Politécnica Superior Universidad Autónoma de Madrid Spain

The huge amount of video content and the increasing rate in which new content is being created makes video summarization a necessary tool for the efficient access and management of video repositories. Nevertheless, the huge amount of data and the complexity of current techniques make the implantation of the summarization systems a difficult or non practical task. This paper presents current advances in the development of a novel algorithm for on-line video summarization, which can be easily used also as a video retrieval tool, aimed to combine summarization quality with high computational efficiency providing a system that can be practical for both commercial and home environments.

关键词： Iterative algorithms Visualization Bandwidth Image analysis multimedia systems Filtering content management Computational efficiency Algorithm design and analysis Decoding

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ANTS: A Complete System for Automatic News Programme Annotation Based on Multimodal Analysis

ANTS: A Complete System for Automatic News Programme Annotat...

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International Workshop on Image Analysis for multimedia Interactive Services, WIAMIS

作者： A. Messina R. Borgotallo G. Dimino D. Airola Gnota L. Boch RAI-Centre for Research and Technology Innovation Turin Italy

This paper describes an integrated system for the acquisition, automatic annotation and Web publication of television broadcast news programmes named ANTS (automatic newscast transcription system). The system consists of several analysis components integrated in a unified architecture. Users have the possibility to access a large daily-growing database of news stories from the main national channels, all identified, categorised and published in a fully automatic way. The system identifies story boundaries, extracts texts from spoken content, classifies stories by subject and links external relevant information coming from the Web. Performances of the system have been evaluated in a real-life scenario, by providing an instance of the system to a panel of professional users inside RAI. The strength of the approach behind ANTS consists in the ability to integrate several heterogeneous analysis components in a performant and ready-for-production environment, capable of elaborating many hours of material per day without significant service drops and with sufficiently good accuracy for industrial employment in large broadcasting facilities.

关键词： Histograms Image analysis multimedia communication Face detection Gunshot detection systems Speech Clustering algorithms Digital multimedia broadcasting multimedia systems Technological innovation

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Diagnosis system of computer-aided brain MRI using content-based image retrieval

Diagnosis system of computer-aided brain MRI using content-b...

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IEEE EMBS International Conference on Information Technology Applications in Biomedicine (ITAB)

作者： Kehong Yuan Shu Feng Wufan Chen Shaowei Jia Ping Xiao Graduate School at Shenzhen & Department of Biomedical Engineering Tsinghua University China School of Biomedical Engineering Southern Medical University China Shenzhen Hospital Beijing University China

Retrieving images is a useful tool to help radiologist to check medical image and diagnosis. In this paper, we propose a retrieval system of computer aided brain magnetic resonance imaging diagnosis , which integrated archiving and communication system, feature extraction and storage, feature match, and user interfaces. The system can be access in three ways, (i) using our system including PACS and image retrieval system, (ii)embedded the software into current PACS, and (iii) internet connection to submit an image as a query, and receive in return a set of images from the the web system. The system utilizes sophisticated image processing algorithms, combined with robust database technology and state-of-the-art web-enabled hardware, and packages these capabilities into a tightly-integrated diagnosis environment for the radiologist. This paper outlines the architecture, algorithms, and the test/verification procedures that our system has implemented.

关键词： Magnetic resonance imaging Image retrieval content based retrieval Feature extraction Image storage Picture archiving and communication systems Biomedical imaging Medical diagnostic imaging Brain computer interfaces Computer interfaces

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Proceedings of SPIE-IS and T Electronic Imaging - multimedia content access: algorithms and systems

Proceedings of SPIE-IS and T Electronic Imaging - Multimedia...

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multimedia content access: algorithms and systems

ISBN: (纸本)0819466190

The proceedings contain 25 papers. The topics discussed include: a model-based conceptual clustering of moving objects in video surveillance;image watermarking based on color quantization process;search and retrieval of medical images for improved diagnosis of neurodegenerative diseases;assessment of end-user response to sports highlights extraction for personal video recorders;examining user interactions with video retrieval systems;automatic and user-centric approaches to video summary evaluation;ontology driven search engine;adaptation of video game UVW mapping to 3D visualization of gene expression patterns;classification of yeast cells from image features to evaluate pathogen conditions;data mining learning bootstrap through semantic thumbnail analysis;a spatiotemporal decomposition strategy for personal home video management;and analysis of unstructured video based on camera motion.

关键词： multimedia services

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A framework for utility-based multimedia adaptation

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IEEE TRANSACTIONS ON CIRCUITS AND systems FOR VIDEO TECHNOLOGY 2007年第6期17卷 719-728页

作者： Prangl, Martin Szkaliczki, Tibor Hellwagner, Hermann Klagenfurt Univ A-9020 Klagenfurt Austria Hungarian Acad Sci Comp & Automat Res Inst H-111 Budapest Hungary

content adaptation is an important issue of multimedia frameworks in order to achieve universal multimedia access (UMA), i.e., to enable consumption of multimedia content independently of the given resource limitations, terminal capabilities, and user preferences. The digital item adaptation (DIA) standard, one of the core specifications of the MPEG-21 framework, supports content adaptation considering a wide range of networks, devices, and user preferences. Most adaptive multimedia frameworks targeting the UMA vision do not consider utility aspects in their adaptation decisions. This paper focuses on a generic semantic-based audio-visual utility model for DIA that aims to enhance the multimedia experience for the user. Our proposed model is able to take the semantics and the perceptual features of the content as well as the users' specific utility aspects into account. Based on a detailed analysis of these constraints, we will show how the model reacts on individual input data. For choosing the best adaptation decision considering resource limitations on client and server sides as well as network characteristics, we evaluate four algorithms for performing this adaptation decision taking task. We will discuss results according to some use case scenarios.

关键词： adaptation decision taking optimization problem recommender system semantic quality (SQ) universal multimedia access (UMA) universal multimedia experience (UME) utility model

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ARGOS:: French Evaluation Campaign for benchmarking of video content analysis methods

ARGOS:: French Evaluation Campaign for benchmarking of video...

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Conference on multimedia content access - algorithms and systems

作者： Benois-Pineau, Jenny Joly, Philippe Kijak, Ewa Quenot, Georges LABRI Bordeaux France IRIT Toulouse France IRISA Rennes France CLIPS IMAG CNRS F-38041 Grenoble 9 France

ISBN: (纸本)9780819466198

The paper presents the Argos evaluation campaign of video content analysis tools supported by the French Techno-Vision program. This project aims at developing the resources of a benchmark of content analysis methods and algorithms. The paper describes the type of the evaluated tasks, the way the content set has been produced, metrics and tools developed for the evaluations and results obtained at the end of the first phase.

关键词： video content analysis evaluation benchmark

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Storage format for personalized broadcasting content consumption

Storage format for personalized broadcasting content consump...

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Conference on multimedia content access - algorithms and systems

作者： Jin, Sung Ho Jang, Jea-Seok Min, Hyun-Seok Ro, Yong Man Kim, Hui Yong Informat & Commun Univ Image & Video Syst Lab 119 Munjiro Taejon 305732 South Korea Elect & Telecommun Res Inst Broadcasting Media Res Grp Daejeon South Korea

ISBN: (纸本)9780819466198

In this paper, we propose a storage format which binds digital broadcasts with related data such as TV-Anytime metadata, additional multimedia resources, and personal viewing history. The goal of the proposed format is to make it possible to offer personalized content consumption after recording broadcasting contents to storage devices, e.g., HD-DVD and Blu-ray Disc. TO achieve that, we adopt MPEG-4 file format as a container and apply a binary format for scenes (BIFS) for representing and rendering personal viewing history. In addition, TV-Anytime metadata is used to describe broadcasts and to refer to the additional multimedia resources, e.g, images, audio clips, and short video clips. To demonstrate the usefulness of the proposed format, we introduce an application scenario and test it on that scenario.

关键词： storage format broadcasting content TV-anytime metadata MPEG-4 file format BIFS

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3D content-based visualization of databases

3D content-based visualization of databases

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11th World Multi-Conference on Systemics, Cybernetics and Informatics/13th International Conference on Information systems Analysis and Synthesis

作者： Koutsoudis, Anestis Arnaoutoglou, Fotis Pavlidis, George Chamzas, Christodoulos Democritus Univ Thrace Dept Elect & Comp Engn 12 Vas Sofias Str GR-67100 Xanthi Greece Res Ctr Athena Cultural & Educ Technol Inst Xanthi 67100 Greece

ISBN: (纸本)9781934272176

The scope of this paper is to propose an innovative interactive system for 3D visualization of multimedia databases. In such databases, the digital content is accompanied by complementary information and metadata that describe the content. The proposed 3D visualization environment is able to provide multiscale representations driven by appropriate clustering processes that exploit content descriptions. It is also able to provide direct access to all the digital content, both in terms of physical access to the multimedia files as well as in terms of searching and retrieving information.

关键词： 3D graphical user interface 3D visualization content-based description content-based visualization

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Recognizing persons in images by learning from videos

Recognizing persons in images by learning from videos

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Conference on multimedia content access - algorithms and systems

作者： Hoerster, Eva Lux, Jochen Lienhart, Rainer Univ Augsburg Multimedia Comp Lab D-8900 Augsburg Germany

ISBN: (纸本)9780819466198

In this paper, we propose an approach for automatically, recognizing persons in images based on their general outer appearance. Therefore we build a statistical model for each person. Large amounts of training data are collected and labeled automatically by using a visual sensor array capturing image sequences containing the person to be learnt. Foreground-background segementation is performed to seperate the person from background, thus enabeling to learn the persons appearance independent of the background. Color and gradient features are extracted representing the segmented person. Person recognition of incoming photos is carried out using (k)-Nearest Neighbor(s) classification and the normalized histogram intersection match value is used as distance measure. Reported experimental results show that the presented approach performs well.

关键词： object recognition object identification person recognition person identification

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Edit while watching: home video editing made easy

Edit while watching: home video editing made easy

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Conference on multimedia content access - algorithms and systems

作者： Campanella, Marco Weda, Hans Barbieri, Mauro Philips Res Europe High Tech Campus 34 NL-5656 AE Eindhoven Netherlands

ISBN: (纸本)9780819466198

In recent years, more and more people capture their experiences in home videos. However, home video editing still is a difficult and time-consuming task. We present the Edit While Watching system that allows users to automatically create and change a summary of a home video in an easy, intuitive and lean-back way. Based on content analysis, video is indexed, segmented, and combined with proper music and editing effects. The result is an automatically generated home video summary that is shown to the user. While watching it, users can indicate whether they like certain content, so that the system will adapt the summary to contain more content that is similar or related to the displayed content. During the video playback users can also modify and enrich the content, seeing immediately the effects of their changes. Edit While Watching does not require a complex user interface: a TV and a few keys of a remote control are sufficient. A user study has shown that it is easy to learn and to use, even if users expressed the need for more control in the editing operations and in the editing process.

关键词： automatic video editing content analysis film grammar video summarization home video summarization smart user interaction

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