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检索条件"任意字段=Conference on Multimedia Content Access - Algorithms and Systems II"

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QoS monitoring framework for end-to-end service management in wired and wireless networks

QoS monitoring framework for end-to-end service management i...

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ACS/IEEE International conference on Computer systems and Applications

作者： Mamadou Sidibe Ahmed Mehaoua CNRS-PRiSM Laboratory University of Versailles Versailles France CRIP5 Laboratory CRIP5-SIP University of Paris 5 Paris France

The explosive increasing amount of multimedia content to be offered in the Internet and the heterogeneity of the underlying networking technologies demand the provision of new QoS-enabled mechanisms and architecture to efficiently control, manage and monitor the networks. This paper first briefly introduces a complex system for multimedia content generation, transport and consumption, over heterogeneous network environment. This is developed in ENTHRONE I and ii projects, where a central concept and subsystem is the ENTHRONE integrated management supervisor (EIMS). Then, the focus of the paper is to present a novel service oriented monitoring framework as an essential part of the EIMS. The proposed QoS monitoring system aims at providing service performance verification with respect to the QoS guarantees specified in contractual agreements between providers and users. This is achieved by not only monitoring services inside wired and wireless access/core networks but also at the customer side. The presented system also provides monitoring information to service providers for providing quantified QoS-based services and service assurance and to network providers for managing network resources.

关键词： Monitoring Wireless networks content management Technology management Laboratories IP networks Resource management Laser sintering Internet Telecommunication traffic

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Multi-format Index Data Structure (MIDS) for multimedia container format demultiplexers

Multi-format Index Data Structure (MIDS) for multimedia cont...

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International conference on Electronic Devices, systems and Applications (ICEDSA)

作者： S.K. Sumanth P. Namratha R. Naveen Kumar N. Ramakrishna Ittiam Systems Pvt. Ltd Bangalore India

multimedia players typically provide a `random-access' feature (also known as seek-to-time) for the user to be able to set the current playing position. While the same is expected of multimedia players on embedded devices, the memory and processing power constraints of the embedded devices pose several challenges in being able to provide an efficient and responsive user experience. This is a particularly significant challenge for large files (especially High-Definition HD video files), and when the multimedia file resides on a slow Input- Output (I/O) device (such as Secure Digital or SD card). In this paper, we propose an indexing mechanism based on a Multi-format Index Data Structure (MIDS). Many previous attempts to create indexing tables have been made but this, we believe, is the first systematic attempt to provide a multi container format and multi-entry format indexing. The proposed index data structure has a time complexity of O (1) for entry retrieval and Ω (1) for entry addition, with a space complexity of O(1). The use of the index data structure in container format demultiplexers results in a dramatic reduction of the seek-to-time operation to about one-tenth (10%) or one-half (50%) of the original time, even with very small index table sizes (1 Kilo Bytes). The result is a more responsive user experience. The proposed index data structure can also be utilized in gaining efficiency through indexing multimedia files in multimedia content Servers (such as YouTube servers) and in indexing Flat File Data Bases.

关键词： Data structures Indexing multimedia communication Containers Heuristic algorithms Complexity theory

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Using multimedia Ontologies for Automatic Image Annotation and Classification

Using Multimedia Ontologies for Automatic Image Annotation a...

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IEEE International conference on Services Economics (SE)

作者： Antonio M. Rinaldi IKNOS-LAB - Intelligent and Knowledge Systems Università di Napoli Federico II Napoli Italy DIETI - Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione Napoli Italy

In the era of big data, the use of formal models and techniques to represent and manage information is a necessary task to implement efficient intelligent information systems. In this paper we propose a complete framework to annotate and categorize images. Our approach is based on multimedia ontologies organized following a formal model to represent knowledge. Our ontologies use multimedia data and linguistic properties to bridge the gap between the target semantic classes and the available low-level multimedia descriptors. The multimedia features are automatically extracted using algorithms based on MPEG-7 standard. The informative image content is annotated with semantic information extracted from our ontologies and the categories are dynamically built by means of a general knowledge base. Experimental results show the efficiency of our approach in the annotation and classification tasks using a combination of textual and visual components.

关键词： multimedia communication Ontologies Semantics Visualization Pragmatics Transform coding Standards

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Fuzzy association rules vs fuzzy associative patterns in defending against web service attacks

Fuzzy association rules vs fuzzy associative patterns in def...

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International conference on Fuzzy systems and Knowledge Discovery (FSKD)

作者： Gaik-Yee Chana Fang-Fang Chuaa Chien-Sing Leeb Faculty of Computing and Informatics Sunway University Cyberjaya Malaysia Multimedia University Melaka Melaka MY Universiti Tunku Abdul Rahman Petaling Jaya Selangor MY

ISBN: (纸本)9781467376839

This paper presents a fuzzy association rule-based intrusion detection and prevention (FAR IDP) system that is implemented within an e-commerce Web service-based application. This system compares the effectiveness and efficiency of using 20 fuzzy association rules compared to 366 fuzzy associative patterns (FAP) to determine whether to definitely grant access to normal transaction, probably deny access for suspicious transaction or certainly deny access to transactions which may contain malicious inputs or XML content. Experimental results from our FAR IDP system have demonstrated that both rules-based and pattern-based algorithms are able to detect, prevent and predict Web service attacks such as SQL injection, XML injection, DoS and SOAP oversized close to real-time, with detection accuracy of not lower than 99%. There is also a slight difference in terms of time; the transaction time for FAP is almost doubled that of FAR's in ms. Additionally, with a transaction time of less than 0.25ms and a detection accuracy of greater than 99%, our FAR IDP has outperformed many other fuzzy and Web service-based IDP systems.

关键词： XML Association rules Pattern matching Simple object access protocol Intrusion detection Prediction algorithms

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A Comprehensive Study on Various Encryption Techniques for Digital Images in multimedia Networks

A Comprehensive Study on Various Encryption Techniques for D...

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Integrated Circuits and Communication systems (ICICACS), IEEE International conference on

作者： Benaka Santhosha S Sudheesh K V Kiran Kiran Parameshachari B D Department of CSE Dayanand Sagar University Harohalli Bengaluru Visvesveraya Technological University Belagavi Department of ECE Vidyavardhaka College of Enginerring Mysuru Visvesveraya Technological University Belagavi Department of ECE Nitte Meenakshi Institute of Technology Bengaluru India

Image encryption is a fundamental component of modern data security that guarantees the integrity, privacy, and confidentiality of sensitive visual content. This paper provides a thorough examination of image encryption, comparing and contrasting different encryption techniques and their benefits and limitations as well as real-world uses. In order to strengthen image data security against unwanted access and manipulation, we first offer some basic understanding of image encryption. The suitability of symmetric, asymmetric, and hybrid encryption techniques in various contexts is examined. We also explore the assessment criteria used to evaluate encryption algorithms, highlighting the significance of using suitable measures to precisely gauge security and effectiveness. We also discuss common issues with image encryption, like complicated key management and computational complexity. The review also explores future directions that picture encryption might take, including multi-media encryption techniques, resistance to cryptanalysis, and quantum image encryption. We also highlight how important image encryption is in a variety of fields, such as finance, healthcare, journalism, intellectual property protection, and military operations. We will conduct a thorough analysis of current cryptography schemes and multimedia encryption algorithms to provide a comprehensive overview of the current security landscape tailored to digital multimedia technology. The findings from this survey will enhance our understanding of the efficacy and dependability of secure multimedia encryption schemes, ultimately aiding in the development of more efficient and robust encryption methods for the future. This article aims to summarize and assess numerous algorithms using different methodologies based on multiple characteristics such as MSE, PSNR, NC, BER, and so on.

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Adaptive Synchronization Control with Multi-level Buffer in Wireless multimedia Sensor Networks

Adaptive Synchronization Control with Multi-level Buffer in ...

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International conference on Distributed Computing in Sensor systems (DCOSS)

作者： Guotao Zhao Huadong Ma Yan Sun Hong Luo Liang Liu Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia Beijing University of Posts and Telecommunications Beijing China

In Wireless multimedia Sensor Networks (WMSNs), data fusion and collaborative in-network processing operations often require effective multimedia synchronization control. Extensive researches have been done in the traditional networks. Most of these works assume that there exists a powerful synchronization controller in the network. However, for WMSNs, the in-network processing of the multimedia content is usually performed based on the resource-constrained sensors. Traditional synchronization control algorithms fail to run on the low-end hardware platform. In this paper, we propose an adaptive synchronization control scheme with multi-level buffer to address this problem. Main contributions of this paper are as follows. (i) To overcome the resource constraint of WMSNs, we perform the synchronization control in a distributed way by combining the sensors in the stream transmission path. (ii) By evaluating the current network state, we adjust the level number of the buffer adaptively to balance the delay and delay jitter. (iii) Through analyzing the buffer state of each level, we propose an efficient packet scheduling scheme to reduce the delay jitter actively. (iv) We implement the proposed scheme and verify its effectiveness in our practical WMSNs platform. The experiment results show that the proposed scheme can maintain the streams synchronization effectively with the low-end sensors.

关键词： Synchronization Jitter Delay multimedia communication Process control Streaming media Media

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Visual content Fingerprinting and Search An MPEG perspective

Visual Content Fingerprinting and Search An MPEG perspective

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conference on Information Visualization Theory and Applications

作者： Miroslaw Z. Bober University of Surrey U.K.

ISBN: (纸本)9781479976874

Our society is creating, storing and using an ever increasing volumes of digital multimedia content. We have access to hundreds of billions of images and videos on the Internet, in the archives of professional content creators and owners, and in the personal libraries of home users. In this context, content-based identification of images' and videos and visual search capabilities are essential enablers for a range of applications that require fast, robust and efficient algorithms. The interoperability of the technologies and systems is also an important consideration. During the lecture Miroslaw Bober will review the latest advances in content fingerprinting and visual search and how they impact related standardisation efforts within the MPEG group. In particular will present the MPEG Visual Signatures, which include the Image Signature and Video Signature content description tools. The Visual Signatures are designed specifically to enable fast and robust identification of near duplicate or derived (modified) visual content in large-scale databases. We will also look at the latest addition to the MPEG family of standards: Compact Descriptors for Visual Search (CDVS). Achieving a state-of-the-art identification and recognition performance, the applications are numerous and include rights management and monetization, distribution management, usage monitoring, and professional or personal database management.

关键词： Our society professional content creators personal database management

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MPEG-4-the emerging multimedia standard

MPEG-4-the emerging multimedia standard

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IEEE International Caracas conference on Devices, Circuits and systems

作者： K.R. Rao Electrical Engineering Department of Electrical Engineering University of Texas Arlington Arlington TX USA

This paper presents an overview of the aims and objectives of MPEG-4. This standard scheduled for November 1998 addresses content-based interactivity, universal access, robustness in error-prone environments, manipulation of objects, both synthetic and natural, etc., at various bit rates, quality levels and spatial/temporal resolutions. The standard is designed to accommodate different communication networks, processors and platforms through tools, algorithms and profiles.

关键词： MPEG 4 Standard Scalability Job shop scheduling Shape Virtual manufacturing Layout Processor scheduling Robustness Bit rate Information retrieval

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Camera Orientation Estimation Using Motion Based Vanishing Point Detection for Automatic Driving Assistance System

Camera Orientation Estimation Using Motion Based Vanishing P...

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IEEE International conference on Consumer Electronics (ICCE)

作者： Jo, Youngran Jang, Jinbeum Paik, Joonki Chung Ang Univ Grad Sch Adv Imaging Sci Multimedia & Film Image Proc & Intelligent Syst Lab Seoul South Korea

ISBN: (纸本)9781538630259

This paper presents a camera orientation estimation method based on 3-line RANSAC using motion vector in a driving straight ahead vehicle. The proposed method consists of three steps: i) motion vector and z-axis vanishing point estimation using feature extraction and matching, ii) line detection and classification using 3-line RANSAC algorithm, and iii) camera orientation estimation with vanishing points using classified lines. The experimental result shows proposed method effectively estimate camera orientation parameter. Therefore, the proposed method can be applied in vehicle systems for automatic driving assistance system.

关键词： Cameras Estimation Calibration Classification algorithms Parallel processing Computer vision Real-time systems

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A data mining framework for building a Web-page recommender system

A data mining framework for building a Web-page recommender ...

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IEEE International conference on Information Reuse and Integration (IRI)

作者： C. Haruechaiyasak M.-L. Shyu S.-C. Chen Information Research and Development Division (RDI) National Electronics and Computer Technology Center Klong Luang Pathum Thani Thailand Department of Electrical and Computer Engineering University of Miami Coral Gables FL USA Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL USA

In this paper, we propose a new framework based on data mining algorithms for building a Web-page recommender system. A recommender system is an intermediary program (or an agent) with a user interface that automatically and intelligently generates a list of information, which suits an individual's needs. Two information filtering methods for providing the recommended information are considered: (1) by analyzing the information content, i.e., content-based filtering, and (2) by referencing other user access behaviors, i.e., collaborative filtering. By using the data mining algorithms, the information filtering processes can be performed prior to the actual recommending process. As a result, the system response time could be improved and thus, making the framework scalable.

关键词： Data mining Recommender systems Information filtering Information filters User interfaces Intelligent agent Information analysis Collaboration Filtering algorithms Delay

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